CN103948710A

CN103948710A - Use of sanguiin in drugs

Info

Publication number: CN103948710A
Application number: CN201410032898.0A
Authority: CN
Inventors: 王达宾; 苏柘僮; 杨明; 杨胜; 邹文铨
Original assignee: CHENGDU KEER MEDICAL TECHNOLOGY Co Ltd
Current assignee: CHENGDU KEER MEDICAL TECHNOLOGY Co Ltd
Priority date: 2010-09-14
Filing date: 2011-09-14
Publication date: 2014-07-30
Also published as: CN103079560A; WO2012034519A1; SG10201505752QA; CN103784434A; SG188529A1; GB2497899B; GB201306569D0; MY173437A; GB2497899A

Abstract

The present invention provides a use of sanguiin in preparation of drugs having a bone marrow cell protection effect. In one specific embodiment, the sanguiin is a compound with a sanguiin content of 100%. In another specific embodiment, the sanguiin is a mixture containing sanguiin with a content of 0.05-3 wt%, preferably mixture containing sanguiin with a content of 1-2 wt%, and the preferred mixture further comprises at least one selected from catechin and procyanidin B2. The sanguiin of the present invention has effects of bone marrow hemopoietic stem cell protection, relieving of e mouse bone marrow DNA inhibition caused by radiotherapy or chemotherapeutic drugs, and increase of the number of white blood cells.

Description

The purposes of sanguiin in medicine

The application is that application number is 201180038931.5 divisional application, and female case applying date is JIUYUE in 2011 14 days, and the denomination of invention of female case is a kind of Radix Sanguisorbae tannin extract and its production and use.

Technical field

The present invention relates to the purposes of sanguiin in medicine.

Background technology

Bone marrow depression, refers to that the activity of the hemocyte precursor in bone marrow declines.Erythrocyte in blood and leukocyte all come from the hematopoietic stem cell in bone marrow.The hemocyte life-span in blood is short, usually needs constantly to supplement.In order to reach supplementary object in time, as the stem cell division fast of hemocyte precursor.Chemotherapy and radiotherapy and many other antitumour treatments, it is all the cell for quick division, thereby usually cause normal marrow cell to suppress, cause bone hematopoietic dysfunction, make the reductions such as erythrocyte in patient body, leukocyte, platelet, thereby cause degradation phenomenon under anemia, hemorrhage, immunologic mechanism.

Leukopenia, is common hematological diseases, and it refers to that in peripheral blood, leukocyte continues lower than 4 × 10 ⁹/ L.Leukocyte is the patrol of human body defense against bacterial invasion.Leukocyte count reduces, and will weaken human antimicrobial ability, easily infected.Particularly the use immunosuppressant such as Radiotherapy chemotherapy, infected patient, Rheumatology systemic lupus erythematosus (sle), department of infectious diseases are used the minimizing of the peripheral blood leucocyte that antituberculotics rifampicin etc. all can cause, thereby weaken human antimicrobial ability, cause the untoward reaction such as immunity degradation.At present, leukopenia is mainly divided into two kinds of agnogenio property and Secondary cases, and the former is common, and mostly the latter is the bone marrow injury being caused by radiotherapy, chemotherapy, infection, immune factor etc. and causes.

All there is this remarkable phenomenon of leukopenia in leukopenia and bone marrow depression; but; in the time of medication, still there is some difference; at present; some has the medicine of leukogenic effect; do not have the effect of bone marrow protection, as rhG-CSF has stronger leukogenic effect, but its detrimental effect to medullary cell is very important.Therefore, searching can leukocyte increasing concentration also can effectively protect the medicine of medullary cell to seem very necessary.

Radix Sanguisorbae is the dry root of rosaceous plant Radix Sanguisorbae Sanguisorba officinalis L. or Radix Sanguisorbae Sanguisorbad officinalis L.var.longifolia (Bert.) the Yu et Li that comes into leaves, has effect of cooling blood for hemostasis, removing toxic substances sore.In Radix Sanguisorbae medical material, contain a large amount of tannin constituents (approximately 20% left and right), in addition, also contain the compound such as saponin, flavone.The current research of the great majority to Radix Sanguisorbae is all carried out around sanguisorbin, the effective ingredient that generally believes Radix Sanguisorbae function of increasing leukocyte and bone marrow protective effect is sanguisorbin, the domestic research of the material base to Radix Sanguisorbae leukogenic effect is thought, sanguisorbin is the main active site that promotes bone marrow cells in mice in-vitro multiplication, also can the raise leukocyte of bone marrow depression mice of sanguisorbin, erythrocyte and platelet counts, and Radix Sanguisorbae tannin and Radix Sanguisorbae flavone can not promote proliferation of bone marrow cells, under high concentration, can produce bone marrow inhibition (higher primary school's equality on the contrary, the effective site screening of the short hemoposieis of Radix Sanguisorbae, China's natural drug, 42 phases of volume in 2006).

At present; comparatively rare to the drug efficacy study of Radix Sanguisorbae tannin; there is bibliographical information to claim abroad; Radix Sanguisorbae tannin has antitumaous effect [Bastow kF.Bort LD.Fukushrma Y et al.Inhibition of DNA topoisomerases by sanguim H-6; a cytotoxic dimeric ella-gitan-ton from sanguisorba officinalis.Planta Med, 1993; 59 (3): 240-245.].The extraction of Radix Sanguisorbae tannin is also had to part report, as higher primary school's equality, adopt 70% aqueous acetone to extract Radix Sanguisorbae, in the extract obtaining, content of tannin is 43.86%(China natural drug, 42 phases of volume in 2006); Because the method is to adopt acetone extraction, separate without crossing, obtain in extract, except containing tannin, also containing saponin component, wherein saponin content accounts for 15% after testing; Wang Manli etc., also adopt alumina column to separate with sanguisorbin Radix Sanguisorbae tannin, and both separate (Guizhou Polytechnical College journal, 22 2 phases of volume in 1993) the most at last.

Have not yet to see the relevant report that sanguiin is applied to bone marrow protection and treatment leukopenia.

Summary of the invention

The invention provides sanguiin and there is the purposes in the medicine of protecting medullary cell effect in preparation.

In a kind of concrete embodiment, described sanguiin is that sanguiin content is 100% compound.

In the another kind of detailed description of the invention of the present invention, described sanguiin is the mixture containing sanguiin 0.05～3wt%, preferably contains the mixture of sanguiin 1～2wt%.In this invention, in preferred described mixture, also comprise at least one in catechin and procyanidin B 2, more preferably in described mixture, also comprise catechin and procyanidin B 2.

In a specific embodiment, in described mixture, the content of catechin is 1～5wt%, is preferably 2～5wt%, and in described mixture, the content of procyanidin B 2 is 0.05～1.5wt%, is preferably 0.05～0.4wt%.

In the above-described embodiment, particularly, described medicine is the medicine that prevents and/or treats the inhibition normal marrow cell being caused by radiotherapy or chemotherapy.Or described medicine is the medicine that prevents and/or treats the anemia, leukopenia or the thrombocytopenia that are caused by radiotherapy or chemotherapy.

The present invention also provides the purposes of sanguiin in the medicine of preparation treatment leukopenia.

The present invention also provides a kind of pharmaceutical composition that prevents and/or treats medullary cell inhibition or leukopenia, it is to add pharmaceutically acceptable adjuvant or complementary composition to be prepared into pharmaceutically conventional preparation by the sanguiin of effective dose, and preferred described preparation is oral formulations.

The object of the present invention is to provide a kind of Radix Sanguisorbae tannin extract; Another object of the present invention is to provide this Radix Sanguisorbae tannin extract, the new purposes of the compound containing in Radix Sanguisorbae tannin.

The invention provides a kind of Radix Sanguisorbae tannin extract, the weight percentage that contains tannin in this extract is 35%-98.5%w/w; The content < 5%w/w of radix sanguisorbae total saponin content < 10%w/w and sanguisorbin I in extract.

Preferably, a kind of Radix Sanguisorbae tannin extract, the weight percentage that contains tannin in this extract is 35%-98.5%w/w; The content < 5%w/w of radix sanguisorbae total saponin content < 10%w/w and sanguisorbin I in extract.

Further preferably, in this extract, the weight percentage of tannin is 50%～98.5%.Further, the weight percentage of tannin is 55%～98.5%.

Further preferably, in this extract, the content < 4.9%w/w of radix sanguisorbae total saponin content < 7.2%w/w, sanguisorbin I in extract.Still more preferably, the content < 0.0001%w/w of radix sanguisorbae total saponin content < 0.001%w/w, sanguisorbin I in extract.

Further, contain sanguiin, catechin, procyanidin B 2 in Radix Sanguisorbae tannin, it accounts for weight percentage in this extract is sanguiin 0.05%-3.0%w/w, catechin 1.0%-5.0%w/w, procyanidin B 2 0.05%-1.5%w/w.Further preferably, it accounts for weight percentage in this extract is sanguiin 1.0%-2.0%w/w, catechin 2.0%-4.0%w/w, procyanidin B 2 0.05%-0.4%w/w.

Further, in this extract, the weight percentage of tannin is 62%～98.5%.

Wherein, this extract derives from rosaceous plant Radix Sanguisorbae Sanguisorba officinalis L. or the dry root of Radix Sanguisorbae Sanguisorba officinalis L.var.longifolia (Bert.) the Yu et Li that comes into leaves.

Wherein, this extract is to be prepared from by following method:

(1) extract: get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, after water, ethanol, aquiferous ethanol, acetone or aqueous acetone are extracted, filter, concentrated, obtain concentrated solution;

(2) purification: get concentrated solution, then after the conventional separation method of tannin is processed, obtain Radix Sanguisorbae tannin extract.

Wherein, the conventional separation method of described tannin comprises the combination of chromatography, precipitation of protein, solvent method or said method.

Further, described chromatography is adsorption chromatography, preferably uses gel, macroporous adsorbent resin.

Further, described precipitation of protein, preferably adopts gelatin to precipitate.

Further, described solvent method, refers to after the aqueous degreaser processing containing concentrated solution, then extracts by ethyl acetate, obtains Radix Sanguisorbae tannin extract;

Or concentrated solution is dissolved in ethanol and ethyl acetate, add diethyl ether or petroleum ether precipitation is separated out Radix Sanguisorbae tannin extract.

Further, this extract is to be prepared from by following method:

(1) extract: get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, after the aqueous acetone of aquiferous ethanol, acetone or the 50-90% of water, ethanol, 10%-90% is extracted, filter, concentrated, obtain concentrated solution;

(2) purification: get concentrated solution, adopt macroporous adsorbent resin to carry out adsorption-edulcoration, first wash with water to colourless, then use 10% ethanol elution, finally use 60% ethanol elution, collect 60% ethanol elution, dry, obtain Radix Sanguisorbae tannin extract; Or,

Get concentrated solution, after defat, be extracted with ethyl acetate, obtain Radix Sanguisorbae tannin extract.

Preferably, the concentration of described aquiferous ethanol is 70%; The concentration of aqueous acetone is 70%.

Wherein, described macroporous adsorbent resin is non-polar resin or low polar resin, preferably DA-201, D-101, LSA-20, HP-10 or AB-8 type macroporous adsorbent resin.

The present invention also provides the preparation method of above-mentioned Radix Sanguisorbae tannin extract, and it comprises following operating procedure:

Further, this extract is to be prepared from by following method:

The present invention also provides above-mentioned Radix Sanguisorbae tannin extract to have the purposes in the medicine of bone marrow protective effect in preparation.

Wherein, described medicine is that prevention is or/and treat myelosuppressive medicine.

Further, described medicine is that prevention is or/and the medicine that the normal marrow cell that treatment is caused by radiotherapy, chemotherapy suppresses.

Further, described medicine is prevention or/and the medicine of anemia, leukocyte or thrombocytopenia that treatment radiotherapy or chemotherapy cause, is preferably prevention or/and the medicine of the leukopenia that treatment radiotherapy, chemotherapy cause.

The present invention also provides the purposes of above-mentioned Radix Sanguisorbae tannin extract in the medicine of preparation treatment leukopenia.

The present invention also provides sanguiin, procyanidin B 2 to have the purposes in the medicine of bone marrow protective effect in preparation.

The present invention also provides sanguiin, the purposes of procyanidin B 2 in the medicine of preparation treatment leukopenia.

The present invention also provides a kind of prevention or has treated the pharmaceutical composition of bone marrow depression, leukopenia, it is to be active component by the sanguiin of effective dose, procyanidin B 2 or above-mentioned Radix Sanguisorbae tannin extract, adds pharmaceutically acceptable adjuvant or complementary composition to be prepared into pharmaceutically conventional preparation.

Wherein, described preparation is oral formulations.

The present invention also provides tumor chemotherapeutic drug and above-mentioned Radix Sanguisorbae tannin extract in the purposes of preparing in antineoplastic combination medicine.

Wherein, described tumor chemotherapeutic drug is alkylating agent class antineoplastic agent.

Further, described tumor chemotherapeutic drug is cyclophosphamide.

The present invention also provides a kind of antineoplastic pharmaceutical compositions, and it is to be active component by the tumor chemotherapeutic drug of effective dose and above-mentioned Radix Sanguisorbae tannin extract, adds the preparation that pharmaceutically acceptable adjuvant is prepared from.

Further, described tumor chemotherapeutic drug is cyclophosphamide.

In Radix Sanguisorbae tannin extract of the present invention, active component is Radix Sanguisorbae tannin; there is the effect of protection marrow hemopoietic stem cells; it suppresses to have remarkable protective effect to chemical substance and radiation-induced mouse bone marrow cells DNA, and the inhibition of the normal marrow cell causing because of radiotherapy, chemotherapy for clinical remission provides a kind of new medication to select.In addition, Radix Sanguisorbae tannin can also leukocyte increasing, has obvious leukogenic effect.When Radix Sanguisorbae tannin extract of the present invention and chemotherapy drugs in combination use, not only strengthen the curative effect to tumor, can also protect medullary cell and complete blood cell, reduced or avoid the damage of chemotherapeutics to medullary cell and complete blood cell.Therefore, adopting, radiotherapy, embolic chemotherapy treatment cancer is forward and backward, or in therapeutic process, all can adopt the method for Radiotherapy chemotherapy means and Radix Sanguisorbae tannin extract of the present invention therapeutic alliance, so that the infringement that alleviates or avoid Radiotherapy chemotherapy to bring Bone Marrow of Patients cell and leukocyte.

Detailed description of the invention

1, in the present invention, Radix Sanguisorbae content of tannin is measured:

Measure under item according to annex X B content of tannin of " Chinese Pharmacopoeia " version in 2010:

Lucifuge operation is answered in this experiment.

The preparation of reference substance solution: precision takes gallic acid reference substance 50mg, puts in the brown measuring bottle of 100ml, is dissolved in water and is diluted to scale, precision measures 5ml, puts in the brown measuring bottle of 50ml, is diluted with water to scale, shake up, obtain (in every 1ml, containing gallic acid 0.05mg).

The preparation of standard curve: precision measures reference substance solution 0.5ml, 1.0ml, 2.0ml, 3.0ml, 4.0ml, 5.0ml, put respectively in the brown measuring bottle of 25ml, respectively add P-Mo-Wo acid test solution 1ml, 11.50ml, 11ml, 10ml, 9ml, 8ml, 7ml again add water respectively, be diluted to scale with 29% sodium carbonate liquor, shake up, place 30 minutes taking corresponding reagent as blank, according to ultraviolet-visible light photometry (annex V A), wavelength place at 760nm measures absorbance, taking absorbance as vertical coordinate, concentration is abscissa, drawing standard curve.

The preparation of need testing solution: get the about 0.1g of extract powder, accurately weighed, put in the brown measuring bottle of 250ml, the 150ml that adds water, placement is spent the night, supersound process 10 minutes, let cool, be diluted with water to scale, shake up, leave standstill (making precipitation of solid material), filter, discard just filtrate 50ml, precision measures filter 20ml, puts in the brown measuring bottle of 100ml, is diluted with water to scale, shake up, to obtain final product.

Algoscopy

Total phenols: precision measures need testing solution 2ml, put in the brown measuring bottle of 25ml, method under the preparation of sighting target directrix curve, from " adding P-Mo-Wo acid test solution 1ml ", the 10ml that adds water measures absorbance, the amount (mg) of reading gallic acid need testing solution from standard curve in accordance with the law, calculate, to obtain final product.

The polyphenol not being adsorbed: precision measures need testing solution 25ml, add in the 100ml tool plug conical flask that fills casein 0.6g, close plug, puts in 30 DEG C of water-baths and reports warm 1 hour, jolting constantly, take out, let cool, shake up, filter, discard just filtrate, precision measures subsequent filtrate 2ml, puts in the brown measuring bottle of 25ml the method under the preparation of sighting target directrix curve, from " adding phosphotungstic acid test solution 1ml ", the 10ml that adds water measures absorbance in accordance with the law, reads the amount (mg) of gallic acid in need testing solution from standard curve, calculate, to obtain final product.

Be calculated as follows the content of tannin: the polyphenol amount of content of tannin=total phenols amount-be not adsorbed.

2, the content assaying method of sanguiin, catechin, procyanidin B 2 is shown in reference literature: the component analysis of Radix Sanguisorbae polyphenol and functional study, bang English, Shaanxi Normal University, 2009.Concrete assay method is:

2.1. instrument and test material

2.1.1 instrument

Agilent1200 high performance liquid chromatograph (Agilent1200 diode array detector; The online degas system of quaternary pump; Agilent1200 chromatographic work station) (Anjelen Sci. & Tech. Inc of the U.S.);

Mettler AE240 100,000/electronic analytical balance (German Mettler company);

FA1104 ten thousand/electronic analytical balance (Shanghai balance equipment factory);

KQ3200 type ultrasonic cleaner (Kunshan Ultrasonic Instruments Co., Ltd.).

2.1.2 reagent

Procyanidin B 2 (purity: HPLC >=99%);

Catechin (purity: HPLC >=99%);

Sanguiin (purity: HPLC >=99%);

Methanol is chromatographically pure, and water is redistilled water (self-control), and other reagent is analytical pure.

2.1.3 Radix Sanguisorbae tannin extract

Get Radix Sanguisorbae tannin extract prepared by the method for embodiment.

2.2. need testing solution preparation

Get the about 1g of Radix Sanguisorbae tannin extract, accurately weighed putting in 100mL volumetric flask, the 90mL that adds water, supersound process (power 250W, frequency 20KHz) 30min, takes out, and lets cool, and adds water and is settled to scale, filters, and to obtain final product.

2.3. the research of chromatographic condition

2.3.1 detect the selection of wavelength

For the maximum information that ensures collection of illustrative plates quantizes, reflect as much as possible Radix Sanguisorbae component overall picture, adopt methanol: phosphate-buffered salt binary gradient elution, roughly separates composition 30 DEG C of column temperatures.Utilize diode array detector (DAD) to gather all chromatograph spectral informations of each chromatography component in 195nm～400nm spectral regions, compare the absorbing state at each peak in the chromatogram under each investigation wavelength, under 265nm, each peak absorption value is larger, and baseline performance steadily.So finally determine that 265nm is as detecting wavelength.

2.3.2 chromatographic condition

In process of the test, adopt several mobile phase to test, to determine optimal flow phase, in table 1.

Table 1 mobile phase and elution program

Time (dividing)	Methanol (%)	0.05% phosphate-buffered salt (%)
			0	5	95
80	45	55
			90	55	45
91	5	95
			100	5	95

2.3.3 ruggedness is investigated

Get with a collection of Radix Sanguisorbae tannin extract, use respectively the chromatographic column of three different brands and producer to test, taking chromatographic peak separating degree and chromatographic peak quantity as evaluation index, investigate instrument ruggedness.

Global post is under selected chromatographic condition, and gained chromatogram and each peak separating effect are better than other two root chromatogram columns.Therefore consider, select global post.

By above test, determine that chromatographic condition is:

Global chromatographic column (4.6mm × 250mm, 5 μ are m); DAD detector; Methanol-0.05% phosphate-buffered salt gradient elution program: 0min → 80min, methanol 5% → 45%, 0.05% phosphate-buffered salt 95% → 55%; 80min → 90min, methanol 45% → 55%, 0.05% phosphate-buffered salt 55% → 45%; 90min → 91min, methanol 55% → 5%, 0.05% phosphate-buffered salt 45% → 95%; 91min → 100min, methanol 5% → 5%, 0.05% phosphate-buffered salt 95% → 95%; Detect wavelength 265nm; 30 DEG C of chromatogram column temperatures; Flow velocity 1.0ml/min; Running time: 100min.

2.3.4. specificity research

According to " 2 " below legal system available test sample solution, detect according to " 3 " lower chromatographic process, record chromatographic peak and retention time and peak area in 90min.Accurate aqueous solution, the mixing reference substance solution 10 μ l of drawing, inject high performance liquid chromatograph respectively, record 90min chromatograph, and record the spectrogram of each control substance of plant drug, and result shows, blank noiseless with this understanding.

2.3.5 assay

3, in Radix Sanguisorbae tannin extract, radix sanguisorbae total saponin and sanguisorbin I are measured, and assay method is as follows:

1) content assaying method of radix sanguisorbae total saponin

Reference substance solution preparation is got 5mg sanguisorbin I in 10ml volumetric flask, adds the about 9ml of dehydrated alcohol, and ultrasonic dissolution, lets cool, and adds dehydrated alcohol and is settled to scale, obtains (in every 1ml, containing 0.5mg).

The accurate reference substance solution 0 of drawing of preparation of standard curve, 200, 300, 400, 500, 600, 800, 1000 μ l are placed in respectively 10ml tool plug test tube, precision adds 8% vanillin alcoholic solution of new preparation (to get vanillin 8g, be settled to 100ml with dehydrated alcohol) 1ml, 70% sulphuric acid 10ml(gets 70ml sulphuric acid, slowly inject 30ml water, obtain), shake up, close plug, put 60 DEG C of water-bath 15min, put into the cooling 2min of frozen water, shake up, taking the color solution that do not add reference substance as blank, according to spectrophotography (annex VIB), measure trap at 530nm wavelength place, taking trap (A) as vertical coordinate, concentration (C) is abscissa, drawing standard curve.

The about 5g of Radix Sanguisorbae tannin extract is got in need testing solution preparation, and porphyrize is accurately weighed, puts in 250ml volumetric flask, adds the about 200ml of dehydrated alcohol, and supersound extraction 30min filters, and collects filtrate in 250ml volumetric flask, is settled to 250ml with dehydrated alcohol, to obtain final product.

Measure the accurate need testing solution 1ml that draws, be placed in 10ml tool plug test tube, the method under sighting target directrix curve item is measured trap in accordance with the law, and substitution regression equation calculation, to obtain final product.

2) content assaying method of sanguisorbin I research

Chromatographic condition chromatographic column, Agilent-Zorbax(4.6mm × 250mm, 5 μ are m); Mobile phase, acetonitrile: water (32:68); Flow velocity, 1ml/min; 40 DEG C of column temperatures; Evaporative light scattering detector.

Reference substance solution preparation is got 25mg sanguisorbin I in 25ml volumetric flask, adds the about 20ml of dehydrated alcohol, and ultrasonic dissolution, lets cool, and adds dehydrated alcohol standardize solution scale, obtains (in every 1ml, containing 1mg).

The preparation of standard curve is accurate draws above-mentioned reference substance solution 1,2,3,4,5ml, be placed in respectively 5ml volumetric flask, add dehydrated alcohol and be settled to scale, the each solution 10 μ l of accurate absorption, according to above-mentioned chromatographic condition, measure, taking the natural logrithm (Y) of peak area as vertical coordinate, the natural logrithm (X) of sample size is abscissa, drawing standard curve.

The about 5g of Radix Sanguisorbae tannin extract is got in need testing solution preparation, and porphyrize is accurately weighed, puts in 100ml volumetric flask, adds the about 90ml of dehydrated alcohol, and supersound extraction 30min, lets cool, and is settled to scale with dehydrated alcohol, shakes up, and 0.45 μ m micropore filter filters, and to obtain final product.

Measure the accurate need testing solution 10 μ l that draw, according to above-mentioned chromatographic condition, measure, substitution regression equation calculation, to obtain final product.

Embodiment 1: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, the flash extraction of 70% acetone 2 times, each 2min, 10 times of amounts of solvent flow control, 8 times of amounts for the second time, merging filtrate, concentrating under reduced pressure, ether and concentrated solution 1:1 volume ratio extraction defat are colourless to ether layer, then use ethyl acetate and mother solution 1:1 volume ratio extracting and enriching total phenols 6 times, combined ethyl acetate, 45 DEG C of decompression cryoconcentration are to appropriate, 45 DEG C of drying under reduced pressure, to obtain final product.

Assay result is: in extract, contain tannin 62%, and sanguiin 1.32%, catechin 2.61%, procyanidin B 2 0.08%, sanguisorbin: 6.2%, sanguisorbin I: 3.7%, be weight percentage.

Embodiment 2: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, 70% alcohol reflux 3 times, each 2h, 10 times of amounts of solvent flow control, 8 times of amounts for the second time, for the third time 6 times of amounts, merging filtrate, concentrating under reduced pressure, ether and concentrated solution 1:1 volume ratio extraction defat are colourless to ether layer, then use ethyl acetate and mother solution 1:1 volume ratio extracting and enriching total phenols 6 times, combined ethyl acetate, 45 DEG C of decompression cryoconcentration are to appropriate, and 45 DEG C of drying under reduced pressure, to obtain final product.

Assay result is: in extract, contain tannin 65%, and sanguiin 1.41%, catechin 2.65%, procyanidin B 2 0.09%, sanguisorbin: 5.4%, sanguisorbin I: 3.1%, be weight percentage.

Embodiment 3: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, 70% alcohol reflux 3 times, each 2h, 10 times of amounts of solvent flow control, 8 times of amounts for the second time, for the third time 6 times of amounts, merging filtrate, concentrating under reduced pressure, ether and concentrated solution 1:1 volume ratio extraction defat are colourless to ether layer, concentrated solution carries out macroporous resin separation, first washes with water to colourless, then uses 10% ethanol elution of 2 times of column volumes, finally use 60% ethanol elution of 2 times of column volumes, collect 60% ethanol elution, 55 DEG C are evaporated to appropriate, spraying is dry, to obtain final product.

Assay result is: in extract, contain tannin 73%, and sanguiin 1.52%, catechin 2.88%, procyanidin B 2 0.11%, sanguisorbin: 3.2%, sanguisorbin I: 1.7%, be weight percentage.

Embodiment 4: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, 70% alcohol reflux 3 times, each 2h, 10 times of amounts of solvent flow control, 8 times of amounts for the second time, for the third time 6 times of amounts, merging filtrate, concentrating under reduced pressure, removes precipitation, supernatant carries out macroporous resin separation, first washes with water to colourless, then uses 10% ethanol elution of 2 times of column volumes, finally use 60% ethanol elution of 2 times of column volumes, collect 60% ethanol elution, extremely appropriate through membrance concentration, then spraying is dry, to obtain final product.

Assay result is: in extract, contain tannin 79%, and sanguiin 1.72%, catechin 3.24%, procyanidin B 2 0.13%, sanguisorbin: 2.4%, sanguisorbin I: 1.3%, be weight percentage.

Embodiment 5: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, decocting boils 3 times, each 2h, the 10 times of amounts for the first time that add water, 8 times of amounts for the second time, for the third time 6 times of amounts, merging filtrate, concentrating under reduced pressure, is concentrated into appropriate, remove precipitation, medicinal liquid carries out macroporous resin separation, first washes with water to colourless, use again 10% ethanol elution of 2 times of column volumes, finally use 60% ethanol elution of 2 times of column volumes, collect 60% ethanol elution, 55 DEG C are evaporated in right amount, and then spraying is dry, to obtain final product.

Assay result is: in extract, contain tannin 61%, and sanguiin 1.22%, catechin 2.43%, procyanidin B 2 0.07%, sanguisorbin: 6.9%, sanguisorbin I: 4.3%, be weight percentage.

Embodiment 6: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, decocting boils 3 times, each 2h, the 10 times of amounts for the first time that add water, 8 times of amounts for the second time, for the third time 6 times of amounts, merging filtrate, concentrating under reduced pressure, is concentrated into appropriate, remove precipitation, medicinal liquid carries out macroporous resin separation, first washes with water to colourless, use again 10% ethanol elution of 2 times of column volumes, finally use 60% ethanol elution of 2 times of column volumes, collect 60% ethanol elution, through membrance concentration, to appropriate, then spraying is dry, to obtain final product.

Assay result is: in extract, contain tannin 67%, and sanguiin 1.34%, catechin 2.59%, procyanidin B 2 0.08%, sanguisorbin: 5.5%, sanguisorbin I: 3.4%, be weight percentage.

Embodiment 7: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, the flash extraction of 70% ethanol 2 times, each 2min, 10 times of amounts of solvent flow control, 8 times of amounts for the second time, merging filtrate, membrance concentration is to appropriate, and medicinal liquid carries out macroporous resin separation, first washes with water to colourless, use again 10% ethanol elution of 2 times of column volumes, finally use 60% ethanol elution of 2 times of column volumes, collect 60% ethanol elution, extremely appropriate through membrance concentration, then spraying is dry, to obtain final product.

Assay result is: in extract, contain tannin 78%, and sanguiin 1.69%, catechin 3.35%, procyanidin B 2 0.13%, sanguisorbin: 3.1%, sanguisorbin I: 1.4%, be weight percentage.

Embodiment 8: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae medicinal material coarse powder, with 60 DEG C of warm macerating of 12 times of water gagings 2 times, each 3 hours, filter, merging filtrate, is concentrated into 0.5g crude drug/ml, be placed in centrifuge, 4000/ leaves heart 10min, gets supernatant, slowly be splined on D-101 type macroporous adsorbent resin with flow velocity 2BV/h, blade diameter length ratio 1:5, after static adsorption 30min, wash with 2BV/h with 2BV water, then wash with 2BV/h with 1BV10% ethanol, then wash with 1BV/h with 2BV60% ethanol, collect eluent, concentrated, be drying to obtain.

Assay result is: in extract, contain tannin 55%.Tannin extraction ratio of the present invention is up to more than 13%.Sanguisorbin: 7.2%, sanguisorbin I: 4.9%.

Wherein, select 10 batches of Radix Sanguisorbae tannins prepared by this embodiment, measure the wherein content of sanguiin, catechin, procyanidin B 2, measurement result is:

Ten batches of Radix Sanguisorbae tannin extractive contents of table 2 are measured

The average content of sanguiin, catechin, procyanidin B 2 is respectively: 1.61%, 3.02%, 0.12%, be weight percentage.

Embodiment 9: the preparation of Radix Sanguisorbae tannin extract of the present invention

Get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, decocting boils 2 times, each 1.5h, 10 times of amounts for the first time add water, 8 times of amounts for the second time, merging filtrate, concentrating under reduced pressure, be concentrated into appropriate, remove precipitation, medicinal liquid carries out macroporous resin separation, first wash with water to colourless, use again 10% ethanol elution of 2 times of column volumes, finally use 60% ethanol elution of 3 times of column volumes, collect 60% ethanol elution, be evaporated to appropriate, then spraying is dry, be dissolved in water, place 1h, filter precipitation, filtrate is placed in evaporating dish, slowly spray into gelatin solution, place 1h, collecting precipitation, after lyophilization 12h, take out, grind to form segmentation, with 90% acetone parsing 2h, medicinal liquid is in 45 DEG C of reclaim under reduced pressure acetone to complete, pour out concentrated solution, lyophilization 12h, obtain, highly purified Radix Sanguisorbae tannin, content of tannin is 98.5%.

1, the content of sanguiin, catechin, procyanidin B 2 is: sanguiin 2.29%, catechin 4.85%, procyanidin B 2 0.38%

2, content of tannin is measured

Lucifuge operation is answered in this experiment.

The preparation of reference substance solution: precision takes gallic acid reference substance 48.30mg, puts in the brown measuring bottle of 100ml, is dissolved in water and is diluted to scale, precision measures 5ml, puts in the brown measuring bottle of 50ml, is diluted with water to scale, shake up, obtain (in every 1ml, containing gallic acid 0.0483mg).

The preparation of need testing solution: get three parts of extract powders 0.101,0.105,0.997g, accurately weighed, put in the brown measuring bottle of 250ml, the 150ml that adds water, placement is spent the night, supersound process 10 minutes, let cool, be diluted with water to scale, shake up, leave standstill (making precipitation of solid material), filter, discard just filtrate 50ml, precision measures filter 20ml, puts in the brown measuring bottle of 100ml, is diluted with water to scale, shake up, to obtain final product.

Algoscopy

3, the mensuration of radix sanguisorbae total saponin and Ziyuglycoside I in Radix Sanguisorbae tannin extract:

Measure 3 batches of Radix Sanguisorbae tannin extracts, result HPLC analyzes the peak that can't detect sanguisorbin I completely, its absorbance of ultraviolet determination radix sanguisorbae total saponin content is 0.001, deducibility, the content < 0.0001% of radix sanguisorbae total saponin content < 0.001% and sanguisorbin I.Therefore,, when content of tannin is 98% when above, the content of radix sanguisorbae total saponin and sanguisorbin I is almost nil.

Lot number	Radix sanguisorbae total saponin (%)	Sanguisorbin I (%)
			20100609	＜0.001	＜0.0001
20100613	＜0.001	＜0.0001

20100617

＜0.001

＜0.0001

In conjunction with the embodiments known to the measurement result of sanguiin, catechin, procyanidin B 2 in 1-9, in Radix Sanguisorbae tannin extract of the present invention, the content of sanguiin, catechin, procyanidin B 2 is comparatively stable, it accounts for weight percentage in this extract is sanguiin 0.05%-3.0%w/w, catechin 1.0%-5.0%w/w, procyanidin B 2 0.05%-1.5%w/w.Further preferably, in extract, the content of sanguiin, catechin, procyanidin B 2 is respectively 1.0-2.0%w/w, catechin 2.0-4.0%w/w, procyanidin B 2 0.05-0.4%w/w.

Embodiment 10: the Optimization Technology of purification by macroporous resin Radix Sanguisorbae tannin is investigated

The investigation of 1 resin kind

1.1 test method macroporous resins are after drying, take respectively 15g, put into 100ml tool plug conical flask, add respectively 2% hydrochloric acid 50ml to soak 3h, then water rinses to PH as neutral, add respectively 2%NaOH solution 50ml to soak 3h, then water rinses to PH as neutral, adds respectively 60ml95% alcohol to make its activation again.Measure respectively Radix Sanguisorbae tannin extracting solution (0.33g/ml) 50ml and be placed in the tool plug conical flask that macroporous resin is housed having activated, make the complete submergence macroporous resin of medicinal liquid, make it soak 24h.Then measure in conical flask and remain volume in medicinal liquid, determine the adsorbance of macroporous resin; Take out macroporous resin in conical flask, with the ultrasonic 1h of 95% soak with ethanol, then measure the content of tannin in eluent, then determine its eluting rate according to medicinal liquid content of tannin before and after absorption.

Maximal absorptive capacity=(the rear content of tannin of content of tannin-absorption before absorption)/macroporous resin quality

Content of tannin in eluting rate=eluent/(the rear medicinal liquid content of tannin of medicinal liquid content of tannin-absorption before absorption)

Determine resin kind according to maximal absorptive capacity, the eluting rate of DA-201, D-101, LSA-20, HP-10 and five kinds of macroporous resins of AB-8.

1.2 test results test data are in table 3.

The screening test of table 3 resin kind

By above test, can determine, macropore resin has absorption, eluting power preferably to Radix Sanguisorbae tannin, therefore, can select macroporous resin to carry out the purification of tannin, and in the present invention, selecting D-101 is preferred resin.

The investigation of 2D-101 macroporous resin seepage curve

By pretreated D-101 macroporous resin 20g dress post, column volume is 30.4cm ³, blade diameter length ratio is 1:4, with Radix Sanguisorbae tannin extracting solution 60ml(0.33g raw medicinal herbs/ml) and dynamic method loading, coutroi velocity is 0.77ml/min, makes it constant, at the bottom of post, collects effluent, collects 5ml for every bottle, collects altogether 11 bottles, measures content of tannin in each part of effluent.And then the seepage curve of definite macroporous resin.Taking volume as abscissa, content of tannin is the seepage curve that vertical coordinate is drawn macroporous resin.

From every bottle, precision pipettes 1ml, be diluted with water to 100ml, precision measures need testing solution 2ml, put in the brown measuring bottle of 25ml, add P-Mo-Wo acid test solution 1ml, 10ml adds water, then be settled to scale with 29% sodium carbonate liquor, after leaving standstill 30min, measure absorption value, from standard curve, read the amount (mg) of gallic acid in need testing solution and calculate, to obtain final product.

Table 4 D-101 macroporous resin seepage curve data

To sum up, medicinal liquid starts seepage after 30ml.Best loading volume is 30ml, and liquor strength is 0.33g/ml raw medicinal herbs, and the consumption of macroporous resin is 20g, and therefore, the amount ratio of best medical material and macroporous resin is 1:2.

The investigation of 3 elution curves

Get the Radix Sanguisorbae tannin extracting solution 60ml of 0.33g raw medicinal herbs/ml, then get the D-101 macroporous resin 20g upper prop filtering out, loading flow speed control is constant, and column volume is 30.4cm ³blade diameter length ratio is 1:4, absorption 1h, make it saturated, carry out eluting with water, 10% ethanol, 30% ethanol, 50% ethanol, 70% ethanol, 90% ethanol of 1 times of column volume respectively, coutroi velocity is constant, collects eluent, measure the content of its tannin, the impact of more different eluant strengths on macroporous resin adsorption.

Get eluent 0.5ml, be diluted to 100ml, precision measures need testing solution 2ml, put in the brown measuring bottle of 25ml, add P-Mo-Wo acid test solution 1ml, 10ml adds water, then be settled to scale with 29% sodium carbonate liquor, after leaving standstill 30min, measure absorption value, from standard curve, read the amount (mg) of gallic acid in need testing solution and calculate, to obtain final product.Test data is in table 5.

The impact of the different eluting solvents of table 5 on elution curve

Consider elution curve and real cost of production, select 60% ethanol to carry out eluting to tannin.

4 uniform Design Optimizing Process Parameters

Taking content of tannin, the rate of transform and overall desirability (OD value) as evaluation index, adopt U ₅(5 ⁴) uniform designs table investigates blade diameter length ratio, liquor strength, flow velocity, the impact of 5 levels of 60% alcohol consumption on tannin purification effect.Uniform designs table arranges each factor, level as table 6, and test data is as table 7:

Table 6 uniform Design factor level table

Table 7 Uniform Design tables of data

Through spss17.0 software analysis result, main Output rusults demonstration has been selected into x ₃, R2=0.85, variance analysis shows F=16.192, P=0.026, successive Regression has statistical significance.

Anova ^b

A. predictor variable: (constant), x3.

B. dependent variable: y

Equation coefficient, x ₃partial regression coefficient t statistic=-4.112, one-sided P=0.026, should retain, regression equation is y=1.092-0.172x ₃, because of regression equation x ₃item is negative sign, and not containing x ₁, x ₂, x ₄, therefore x ₃should get trial stretch minima.According to the desirable x of reality ₁=1:5, x ₂=2, x ₄=0.5.The approximate evaluation of optimum point is: x ₃=1, that is, optimal processing parameter is: 2 times of blade diameter length ratio 1:5, liquor strength 0.5, flow velocity 1BV/h, 60% alcohol consumption.

Coefficient ^a

A. dependent variable: y

5 purification with macroreticular resin Radix Sanguisorbae tannin process certification tests

According to above-mentioned optimised process, its OD value prediction value is 0.92, and this result is verified.

Table 8 process certification (HPLC)

Result shows, purifying process result is more stable.

6 brief summaries

According to above experimental result, draft Radix Sanguisorbae purification condition and be: get Radix Sanguisorbae extracting solution, be concentrated into 0.5g crude drug/ml, be placed in centrifuge, 4000/ leaves heart 10min, gets supernatant, slowly be splined on D-101 type macroporous adsorbent resin with flow velocity 2BV/h, blade diameter length ratio 1:5, after static adsorption 30min, wash with 2BV/h with 2BV water, wash with 2BV/h with 1BV10% ethanol again, then wash with 1BV/h with 2BV60% ethanol, collect eluent, concentrated, be drying to obtain.

In application process, also can select other macroporous adsorbent resins to carry out purification to Radix Sanguisorbae tannin.The yield of the Radix Sanguisorbae tannin extracting method of prior art report is low, all below 10%; The inventive method extraction ratio is high, reaches more than 13%.

Prove beneficial effect of the present invention by concrete pharmacodynamics test below.

The protective effect of test example 1 Radix Sanguisorbae tannin of the present invention bone marrow

1, Radix Sanguisorbae tannin extract

Get high-purity Radix Sanguisorbae tannin prepared by embodiment 9, content of tannin is 98.5%.

2, the bone marrow depression drug efficacy study that Radix Sanguisorbae tannin causes chemical substance

2.1 experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; High-purity Radix Sanguisorbae tannin (content of tannin is more than 98%); Cyclophosphamide for injection; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline.

2.2 experimental technique

2.2.1 grouping and administration

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.60 mices are divided into 6 groups by sex layering completely random, and (concrete grouping in table 9, prevents ig administration 3d with administration situation before modeling.4d gives equal-volume normal saline except blank group ip, all the other each groups by mice as daily weight ip cyclophosphamide 100mg/kgd, 3d continuously.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

The grouping of table 9 animal and dosage

2.2.2 evaluation index and date processing

7d eye socket blood sampling after modeling, adopts full-automatic blood counting instrument to detect peripheral blood conventional parameter, comprises leukocyte WBC number, erythrocyte RBC, and Hb H GB, platelet PLT, gets spleen simultaneously and weighs, and calculates Spleen coefficient.Put to death above-mentioned mice, get the complete femur in left side, Ex-all soft tissue, pours whole bone marrow in test tube with 0.005mol/L CaCl2 10mL, put 4 DEG C of refrigerator 30min, the centrifugal 15min of 2500r/min, supernatant discarded, adds 0.2mol/L HClO4 5mL by precipitate and fully mixes, 90 DEG C of heating 15min, let cool the centrifugal 10min of rear 3500r/min, get supernatant, measure OD value by microplate reader in 260nm wavelength place.

Experimental data represents with mean ± S.D., adopts SPSS software, t inspection and the inspection of single factor F in groups for statistical test, test level α=0.05.

2.2.3 interpretation of result

The impact of leukocyte, erythrocyte, thrombocytopenia and the Spleen coefficient of Radix Sanguisorbae tannin on caused by cyclophosphamide mouse peripheral blood elephant is in table 10.Mouse peritoneal injection cyclophosphamide can make peripheral blood leucocyte, erythrocyte, hemoglobin and platelet count obviously reduce, and Spleen coefficient, bone marrow DNA content obviously reduce, and relatively have significant difference with blank group.With model group comparison, the high, medium and low dosage group of Radix Sanguisorbae tannin and rhG-CSF be leukocyte increasing number (P < 0.05) obviously, improves Spleen coefficient; Radix Sanguisorbae tannin high dose group can obviously raise Peripheral Erythrocytes number and platelet count, Radix Sanguisorbae tannin and rhG-CSF are little on content of hemoglobin impact; The Radix Sanguisorbae tannin high dose group bone marrow DNA content (P < 0.05) that can obviously raise, and rhG-CSF plays detrimental effect on the contrary to bone marrow DNA content.

The bone marrow depression drug efficacy study (mean ± S.D., n=10) that table 10 Radix Sanguisorbae tannin causes chemical substance

Δ: with model group than P < 0.05;

From above-mentioned experiment; rhG-CSF has stronger leukogenic effect; can make leukocyte count significantly exceed normal group (P < 0.05); but rhG-CSF does not protect bone marrow effect; also accelerate Differentiation of Bone Marrow Cells by stimulation; further increase the weight of the load of hematopoietic stem cell, this is one of reason of the side effect generations such as its osteodynia.RhG-CSF is that in adjusting bone marrow, grain is one of major cytokine of hemopoietic, leukocyte, erythrocyte and thrombocytopenia to caused by radiotherapy and chemotherapy have remarkable therapeutical effect, it rises white mechanism is that selectively acting is hemopoietic progenitor cell in grain, directly promote its propagation, differentiation, and can increase grain be the function of terminally differentiated cells, thereby leukocyte is raise fast.

Radix Sanguisorbae tannin of the present invention suppresses the mouse bone marrow cells of chemical substance caused by cyclophosphamide; comprise that peripheral blood leucocyte, erythrocyte, hemoglobin and platelet count obviously reduce, the minimizing of bone marrow DNA content all has remarkable protective effect (P < 0.05), and presents a certain amount of effect relationship: in high >, > is low.The Radix Sanguisorbae tannin purity that the present invention prepares is up to more than 98%, evidence, and Radix Sanguisorbae tannin has obvious therapeutical effect to bone marrow depression and leukocyte, erythrocyte and thrombocytopenia due to chemical substance.

3, Radix Sanguisorbae tannin is to radiation-induced bone marrow depression drug efficacy study

3.1 experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; Radix Sanguisorbae tannin (content of tannin is more than 98%); Co 60 ray shines machine outward; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline.

3.2 experimental technique

3.2.1 grouping and administration

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.60 mices are divided into 6 groups (concrete groupings and same " the bone marrow depression drug efficacy study that Radix Sanguisorbae tannin causes the chemical substance " content of administration situation) by sex layering completely random, before modeling, prevent ig administration 3d.4d is except normal group, and all the other each group is all placed in the round plastic box of having separated, set a distance centered by lid, and with the disposable total irradiation 7.5Gy of Co 60 ray, close rate is 82.6cGy/min, irradiation distance 80cm.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

3.2.2 evaluation index and date processing

It is observation index that this experiment adopts leukocyte WBC number.

3.3 interpretation of result

Radix Sanguisorbae tannin on the myelosuppressive impact of cobalt ray induced mice in table 11.

Table 11 Radix Sanguisorbae tannin is on the myelosuppressive impact of cobalt ray induced mice (mean ± S.D., n=10)

Δ: P < 0.05, with model group comparison; Separately, Radix Sanguisorbae tannin also has rising trend (P < 0.05) to erythrocyte, platelet etc.

From result, rhG-CSF has extremely strong leukogenic effect, can make leukocyte count significantly exceed normal group (P < 0.05), but, identical with " the bone marrow depression drug efficacy study that Radix Sanguisorbae tannin causes chemical substance ", the bone marrow DNA content that gives rhG-CSF group is reduction trend on the contrary.

Chemical substance induced mice bone marrow DNA content is reduced Radix Sanguisorbae tannin and leucocytes reduction all has remarkable protective effect (P < 0.05), and present a certain amount of effect relationship: in high >, > is low.Radix Sanguisorbae tannin purity of the present invention is higher than more than 98%, evidence, and Radix Sanguisorbae tannin has obvious therapeutical effect to radiation-induced bone marrow depression and leukocyte, erythrocyte and thrombocytopenia.

The drug efficacy study of test example 2 Radix Sanguisorbae tannin of the present invention and component thereof

There is bibliographical information to claim to contain in Radix Sanguisorbae tannin sanguiin, catechin, procyanidin B 2, nutgall catechin, catechin and gallate, epicatechin, epigallocatechin gallate (EGCG) (component analysis of Radix Sanguisorbae polyphenol and functional study, bang English, Shaanxi Normal University, 2009), therefore, design is following tests to disclose the main active substances in Radix Sanguisorbae tannin of the present invention, and carries out active contrast with single compound.

1, the bone marrow depression drug efficacy study that Radix Sanguisorbae tannin and component thereof cause chemical substance

1.1 experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; Cyclophosphamide for injection; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline; High-purity Radix Sanguisorbae tannin (embodiment 9 makes, and content of tannin is more than 98%); Sanguiin (HPLC > 99%); Catechin (HPLC > 99%); Procyanidin B 2 (HPLC > 99%); Nutgall catechin (HPLC > 99%); Catechin and gallate (HPLC > 99%); Epicatechin (HPLC > 99%); Epigallocatechin gallate (EGCG) (HPLC > 99%), above-mentioned monomeric compound is all bought in Chengdu Pu Ruifa Science and Technology Ltd..

1.2 experimental technique

1.2.1 grouping and administration

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.110 mices are divided into 11 groups (concrete grouping and administration situation are in tables 12) by sex layering completely random, before modeling, prevent ig administration 3d.4d gives equal-volume normal saline except blank group ip, all the other each groups by mice as daily weight ip cyclophosphamide 100mg/kgd, 3d continuously.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

The grouping of table 12 animal and dosage

1.2.2 evaluation index and date processing

It is observation index that this experiment adopts leukocyte WBC number.

1.2.3 interpretation of result

The bone marrow depression drug efficacy study (mean ± S.D., n=10) that table 13 Radix Sanguisorbae tannin and component thereof cause chemical substance

Δ: P < 0.05, with model group comparison; ☆: P < 0.05, Radix Sanguisorbae tannin and catechin comparison; Separately, Radix Sanguisorbae tannin also has rising trend (P < 0.05) to erythrocyte, platelet etc.

Above-mentioned the results show, the component such as contained catechin, sanguiin, nutgall catechin, catechin and gallate in Radix Sanguisorbae tannin, all the mouse bone marrow cells of caused by cyclophosphamide is suppressed to have certain therapeutical effect, wherein sanguiin, catechin, procyanidin B 2 have significance effect (P < 0.05), and sanguiin drug effect is the strongest, catechin is taken second place, procyanidin B 2 slightly a little less than.In addition, under same dose, the effect of Radix Sanguisorbae tannin is strong compared with the component such as sanguiin, catechin, discloses between each component and has synergism.

2, Radix Sanguisorbae tannin and component thereof are to radiation-induced bone marrow depression drug efficacy study

2.1 experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; Co 60 ray shines machine outward; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline; High-purity Radix Sanguisorbae tannin (embodiment 9 makes, and content of tannin is more than 98%); Sanguiin (HPLC > 99%); Catechin (HPLC > 99%); Procyanidin B 2 (HPLC > 99%); Nutgall catechin (HPLC > 99%); Catechin and gallate (HPLC > 99%); Epicatechin (HPLC > 99%); Epigallocatechin gallate (EGCG) (HPLC > 99%).

2.2 experimental technique

2.2.1 grouping and administration

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.110 mices are divided into 11 groups (concrete groupings and same " the bone marrow depression drug efficacy study that Radix Sanguisorbae tannin and component thereof cause the chemical substance " content of administration situation) by sex layering completely random, before modeling, prevent ig administration 3d.4d is except normal group, and all the other each group is all placed in the round plastic box of having separated, set a distance centered by lid, and with the disposable total irradiation 7.5Gy of Co 60 ray, close rate is 82.6cGy/min, irradiation distance 80cm.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

2.2.2 evaluation index and date processing

With test example 1.

2.3 interpretation of result

Table 14 Radix Sanguisorbae tannin and component thereof are to radiation-induced bone marrow depression drug efficacy study (mean ± S.D., n=10)

Δ: P < 0.05, with model group comparison; ☆: P < 0.05, Radix Sanguisorbae tannin and catechin comparison; Separately, Radix Sanguisorbae tannin extract also has rising trend (P < 0.05) to erythrocyte, platelet etc.

Experimental results show that, the component such as contained catechin, sanguiin, nutgall catechin, catechin and gallate in Radix Sanguisorbae tannin, all radiogenic mouse bone marrow cells is suppressed to have certain therapeutical effect, wherein sanguiin, catechin, procyanidin B 2 have significance effect (P < 0.05), and sanguiin drug effect is the strongest, procyanidin B 2 takes second place, catechin slightly a little less than.In addition,, under same dose, the effect of Radix Sanguisorbae tannin is strong compared with components such as sanguiin, catechin, procyanidin B 2s, between each component, has synergism.

To sum up; bone marrow depression and leukocyte, erythrocyte, thrombocytopenic main active that Radix Sanguisorbae tannin causes chemical damage and radiation damage are sanguiin, procyanidin B 2, catechin; wherein sanguiin is all stronger to two kinds of model therapeutical effect; and catechin and procyanidin B 2 emphasize particularly on different fields; catechin is better to chemical damage protective effect, and procyanidin B 2 lays particular emphasis on physically impaired protection.Also shown there is synergism between the each component of Radix Sanguisorbae tannin by above-mentioned research.

Above-mentioned experiment absolutely proves; Radix Sanguisorbae tannin can be resisted the bone marrow depression being caused by chemical damage and radiation damage; and the leukocyte causing thus, erythrocyte, thrombocytopenia; can predict while making it combine use with antitumor drug because of its protective effect to bone marrow, there is the potential applicability in clinical practice of blissful sight.

Because prior art all thinks that sanguisorbin is the active substance of leukocyte increasing, inventor has carried out series of experiments modestly, and the material base of Radix Sanguisorbae leukogenic effect has been done to further research.

The material base research of test example 3 Radix Sanguisorbae tannin of the present invention leukogenic effect

1, experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; High-purity Radix Sanguisorbae tannin (content of tannin is more than 98%, prepared by embodiment 9); Cyclophosphamide for injection; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline.

2, experimental technique

2.1 grouping and administrations

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.70 mices are divided into 7 groups (concrete grouping and administration situation are in tables 15) by sex layering completely random, before modeling, prevent ig administration 3d.4d gives equal-volume normal saline except blank group ip, all the other each groups by mice as daily weight ip cyclophosphamide 100mg/kgd, 3d continuously.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

The grouping of table 15 animal and dosage

2.3 evaluation indexes and date processing

It is observation index that this experiment adopts leukocyte WBC number.

3, interpretation of result

Known by table 16 leukocyte count WBC interpretation, 1. between blank group and model group, there is significant difference (P < 0.05), illustrate that cyclophosphamide causes murine interleukin and reduces the animal model modeling success of disease.2. between Radix Sanguisorbae tannin high and low dose group, positive group and model group, there is significant difference (P < 0.05), illustrate that Radix Sanguisorbae tannin causes murine interleukin to cyclophosphamide and reduces disease and have good therapeutical effect; There was no significant difference between all the other administration groups and model group (P > 0.05), all the other administration groups to cyclophosphamide cause murine interleukin reduce disease without therapeutical effect 3. the efficacy strength of Radix Sanguisorbae tannin present obvious dose-effect relationship: high dose > low dosage (P < 0.05).

Table 16 leukocyte count WBC experimental result (mean ± S.D., n=10)

Δ: with model group than P < 0.05

☆: with except tannin group than P < 0.05

The material base research of test example 4 Radix Sanguisorbae tannin of the present invention extract leukogenic effect

1, experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; Radix Sanguisorbae tannin extract (embodiment 8 is made, contains tannin 55% in extract, and the content of sanguiin, catechin, procyanidin B 2 is respectively: 1.61%, 3.02%, 0.12%, be weight percentage.The percentage composition of sanguisorbin is 7.2%, sanguisorbin I is 4.9%); Cyclophosphamide for injection; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline.

2, experimental technique

2.1 grouping and administrations

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.70 mices are divided into 7 groups (concrete grouping and administration situation are in tables 17) by sex layering completely random, before modeling, prevent ig administration 3d.4d gives equal-volume normal saline except blank group ip, all the other each groups by mice as daily weight ip cyclophosphamide 100mg/kgd, 3d continuously.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

The grouping of table 17 animal and dosage

2.3 evaluation indexes and date processing

It is observation index that this experiment adopts leukocyte WBC number.

3, interpretation of result

Known by table 18 leukocyte count WBC interpretation, 1. between blank group and model group, there is significant difference (P < 0.05), illustrate that cyclophosphamide causes murine interleukin and reduces the animal model modeling success of disease.2. between Radix Sanguisorbae tannin high and low dose group, positive group and model group, there is significant difference (P < 0.05), illustrate that Radix Sanguisorbae tannin causes murine interleukin to cyclophosphamide and reduces disease and have good therapeutical effect; There was no significant difference between all the other administration groups and model group (P > 0.05), all the other administration groups to cyclophosphamide cause murine interleukin reduce disease without therapeutical effect 3. the efficacy strength of Radix Sanguisorbae tannin present obvious dose-effect relationship: high dose > low dosage (P < 0.05).

Table 18 leukocyte count WBC experimental result (mean ± S.D., n=10)

Δ: with model group than P < 0.05

☆: with except tannin group than P < 0.05

4, conclusion

The test of test example 3 and test example 4 shows, Radix Sanguisorbae tannin extract of the present invention causes murine interleukin to cyclophosphamide and reduces disease have significant therapeutic effect (P < 0.05), meanwhile, adopt gelatin to remove after the tannin composition in Radix Sanguisorbae tannin extract, without therapeutic effect, further prove that Radix Sanguisorbae tannin is the effective ingredient for the treatment of leukopenia.

Test example 5 sanguisorbins rise white and bone marrow protective effect research

1 experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; Sanguisorbin extract (98.18%); Cyclophosphamide for injection; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline.

The preparation of sanguisorbin: get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, 70% alcohol reflux 3 times, each 1.5h, 70 DEG C of concentrating under reduced pressure medicinal liquids are to appropriate (without ethanol taste), be transferred to separatory funnel, first use water saturated ether defatting 2 times, the ether that 70 DEG C of reclaim under reduced pressure of mother solution are sneaked into, then add water and be dissolved to, use again water saturated n-butanol extraction 2 times, 80 DEG C of concentrating under reduced pressure of extract, adding certain density ethanol dissolves solid content, be transferred in beaker, add water appropriate, adjust pH to 10-14, place, centrifugal, take out precipitation, 70 DEG C of vacuum drying 2h, be transferred in tool plug triangular flask, add dehydrated alcohol supersound extraction, filter, 70 DEG C of decompression recycling ethanols of filtrate are to just having solid content to separate out, be transferred in evaporating dish, 80 DEG C of water-baths volatilize ethanol, 70 DEG C of vacuum drying 12h, take out, grind, obtain.Sanguisorbin content 98.18%.

2 experimental techniques

2.1 grouping and administrations

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.60 mices are divided into 6 groups (concrete grouping and administration situation are in tables 19) by sex layering completely random, before modeling, prevent ig administration 3d.4d gives equal-volume normal saline except blank group ip, all the other each groups by mice as daily weight ip cyclophosphamide 100mg/kgd, 3d continuously.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

The grouping of table 19 animal and dosage

2.2 evaluation indexes and date processing

2.3 interpretation of result

The impact of leukocyte, erythrocyte, thrombocytopenia and the Spleen coefficient of sanguisorbin extract on caused by cyclophosphamide mouse peripheral blood elephant is in table 20.With model group comparison, the high, medium and low dosage group of sanguisorbin extract all, without obvious leukocyte increasing number (P > 0.05), suppresses without obvious therapeutic action (P > 0.05) the mouse bone marrow cells of caused by cyclophosphamide.

The drug efficacy study (mean ± S.D., n=10) of table 20 sanguisorbin extract

Δ: with model group than P > 0.05

Generally believe that at present " effective ingredient of Radix Sanguisorbae function of increasing leukocyte and bone marrow protective effect is sanguisorbin, can the raise leukocyte of bone marrow depression mice of sanguisorbin, erythrocyte and platelet counts, and Radix Sanguisorbae tannin and Radix Sanguisorbae flavone can not promote proliferation of bone marrow cells, under high concentration, can produce bone marrow inhibition on the contrary ", in the time of manufacture Radix Sangusorbae extract, certainly to obtain sanguisorbin as target, but, inventor is by above-mentioned experiment, but be surprised to find that, the active component of leukocyte increasing in Radix Sanguisorbae, it is not sanguisorbin, but Radix Sanguisorbae tannin.

Test example 6 Radix Sanguisorbae tannins and sanguisorbin are tested effects of tumors

1 experiment material

C57 mice (♀ half and half, 18～22g, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Cyclophosphamide for injection; Radix Sanguisorbae tannin extract (embodiment 9 makes, and content of tannin is more than 98%); Normal saline.

Lewis lung cancer tumor strain suspension: select after inoculation oncocyte the de-neck of mice of 7 days to put to death, aseptic extraction ascites, centrifugal, remove supernatant, take off layer oncocyte normal saline dilution and become the oncocyte liquid of 250mg/ml.

The preparation of sanguisorbin: get Radix Sanguisorbae pulverizing medicinal materials and become coarse powder, 70% alcohol reflux 3 times, each 1.5h, 70 DEG C of concentrating under reduced pressure medicinal liquids are to appropriate (without ethanol taste), be transferred to separatory funnel, first use water saturated ether defatting 2 times, the ether that 70 DEG C of reclaim under reduced pressure of mother solution are sneaked into, then add water surely molten, use again water saturated n-butanol extraction 2 times, 80 DEG C of concentrating under reduced pressure of extract, adding certain density ethanol dissolves solid content, be transferred in beaker, add water appropriate, adjust pH to 10-14, place, centrifugal, take out precipitation, 70 DEG C of vacuum drying 2h, be transferred in tool plug triangular flask, add dehydrated alcohol supersound extraction, filter, 70 DEG C of decompression recycling ethanols of filtrate are to just having solid content to separate out, be transferred in evaporating dish, 80 DEG C of water-baths volatilize ethanol, 70 DEG C of vacuum drying 12h, take out, grind, obtain.Sanguisorbin content 98.18%.

2 grouping and administrations

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.Get 60 of C57 mices, be divided at random model group, cyclophosphamide group, Radix Sanguisorbae tannin group, Radix Sanguisorbae tannin+cyclophosphamide group, sanguisorbin group, totally 6 groups of sanguisorbin+cyclophosphamide groups (concrete grouping and administration situation are in table 21) by body weight.Each treated animal is inoculated 0.2ml Louis tumor line suspension, modeling 1 time by the hypodermic mode in oxter.Except giving cyclophosphamide by the mode administration of ip., each treated animal gives the mode gastric infusion of 0.2ml medicinal liquid according to every 10g body weight, and model group gives corresponding normal saline, successive administration 14 days.

The grouping of table 21 animal and dosage

3 evaluation indexes and date processing

Each treated animal was put to death in the 15th day, cut animal oxter tumor, weighed, and recorded tumor control rate.Experimental data represents with mean ± S.D., adopts SPSS software, t inspection and the inspection of single factor F in groups for statistical test, test level α=0.05.

Average (tumor weight/body weight) × 100% of tumour inhibiting rate (%)=[average (tumor weight/body weight)-experimental group of model group average (tumor weight/body weight)]/model group

4 interpretations of result

Table 22 Radix Sanguisorbae tannin and sanguisorbin are tested effects of tumors

Δ: with model group than P < 0.05

Although bibliographical information sanguisorbin there is antineoplastic action, but can find out from above-mentioned experimental result, sanguisorbin group does not have inhibitory action to tumor, there is on the contrary the side effect that stimulates tumor growth, and after sanguisorbin and cyclophosphamide combined are used, its tumor control rate is lower than cyclophosphamide, this shows, sanguisorbin antagonism the therapeutical effect of chemotherapeutics to tumor; And using after Radix Sanguisorbae tannin, not only strengthen the curative effect to tumor, meanwhile, can also protect medullary cell and complete blood cell, reduce or avoid the damage of chemotherapeutics to medullary cell and complete blood cell.Therefore, need to control the content of sanguisorbin in Radix Sanguisorbae tannin extract of the present invention, with the side effect that prevents that sanguisorbin from producing.According to embodiment and test example result, the weight percentage < 10%w/w of radix sanguisorbae total saponin, sanguisorbin I weight percentage < 5%w/w in Radix Sanguisorbae tannin extract, preferably, the content < 0.0001%w/w of radix sanguisorbae total saponin content < 0.001%w/w, sanguisorbin I in extract.

The effect experiment of test example 7 Radix Sanguisorbae tannin of the present invention extract to bone marrow protection

1 experiment material

KM mice (♀ half and half, 18～22g, clean level, the quality certification number: SCXK (river) 2004-15, purchased from institute of lab animals of Sichuan Academy of Medical Sciences); Full-automatic blood counting instrument (MEK-6318, purchased from Nihon Kohden Corporation); Electronic analytical balance (BP211D, purchased from Sartorius AG); Microplate reader; Co 60 ray shines machine outward; Recombinant human granulocyte colony stimulating factor (rhG-CSF, 75 μ are g); Normal saline; Embodiment 1-8 gained Radix Sanguisorbae tannin extract (wherein, the weight percentage of tannin between 55%～79%, saponin weight percentage < 10%w/w).

2 experimental techniques

2.1 grouping and administrations

This experimental animal feeding, in pharmacological evaluation animal observation ward of Chengdu University of Traditional Chinese Medicine, starts prospective adaptation environment 3 days in experiment, normally gives diet and water.110 mices are divided into 11 groups (concrete grouping and administration situation are in tables 23) by sex layering completely random, before modeling, prevent ig administration 3d.4d is except normal group, and all the other each group is all placed in the round plastic box of having separated, set a distance centered by lid, and with the disposable total irradiation 7.5Gy of Co 60 ray, close rate is 82.6cGy/min, irradiation distance 80cm.Except the positive group of Western medicine, from modeling same day, continued ig administration 6d.7th～9 days subcutaneous injection rhG-CSF.

Table 23 divides into groups and administration

2.2 evaluation indexes and date processing

7d eye socket blood sampling after modeling, adopts full-automatic blood counting instrument to detect peripheral blood conventional parameter, comprises leukocyte WBC number, erythrocyte RBC, and Hb H GB, platelet PLT, gets spleen simultaneously and weighs, and calculates Spleen coefficient.Put to death above-mentioned mice, get the complete femur in left side, Ex-all soft tissue, pours whole bone marrow in test tube with 0.005mol/L CaCl210mL, put 4 DEG C of refrigerator 30min, the centrifugal 15min of 2500r/min, supernatant discarded, adds 0.2mol/L HClO45mL by precipitate and fully mixes, 90 DEG C of heating 15min, let cool the centrifugal 10min of rear 3500r/min, get supernatant, measure OD value by microplate reader in 260nm wavelength place.

2.3 interpretation of result

Radix Sanguisorbae tannin on the myelosuppressive impact of cobalt ray induced mice in table 24.

The drug effect comparative study (mean ± S.D., n=10) of the Radix Sanguisorbae tannin of the different preparation methoies of table 24

Δ: with model group than P < 0.05

From result; chemical substance induced mice bone marrow DNA content is reduced Radix Sanguisorbae tannin extract of the present invention and leucocytes reduction all has remarkable protective effect (P < 0.05); and along with Radix Sanguisorbae content of tannin is higher; the content of the components such as sanguiin, catechin, procyanidin B 2 is higher, and drug effect is in rising trend.

The side effect research of test example 8 Radix Sanguisorbae tannin extracts

1 acute toxicity testing

KM mice is divided into blank group and administration group at random, every group of 20 animals, and blank group gavage gives normal saline, and administration group gives animal with gavage of dose of the tolerant Cmax of animal, maximum volume, converts as extract 2g/ml Continuous Observation two weeks.As a result, without obvious toxic-side effects.Obtaining mice is as calculated 80g/kg to the maximum tolerated dose of Radix Sanguisorbae tannin extract (prepared by embodiment 9).

2 different way of administration tests

KM mice is divided into intramuscular injection group, gavage group, lumbar injection group, subcutaneous injection, intravenous injection group at random, every group of 10 animals, except blank group, give to be respectively equal to Radix Sanguisorbae tannin extract (prepared by the embodiment 9) 10mg/kg of dosage, continuous 14 days, put to death animal, Anatomical observation animal tissue morphological change, takes pictures.

As a result, the other administration route of tannin has very strong side effect, shows as:

Lumbar injection: the adhesion pathological changes of tissue, muscle

Intramuscular injection: muscle has many blood stasis

Subcutaneous injection: subcutaneous tissue hyperemia

Intravenous injection: mice is dead immediately

But gavage, without obvious adverse reaction, illustrates that Radix Sanguisorbae tannin is suitable for gastric infusion.

Can prove by above-mentioned effect experiment, the weight percentage that contains tannin in Radix Sanguisorbae tannin extract of the present invention is 35%-98.5%w/w, the weight percentage < 10%w/w of radix sanguisorbae total saponin, sanguisorbin I weight percentage < 5%w/w, active component is wherein Radix Sanguisorbae tannin, and along with Radix Sanguisorbae content of tannin is higher, drug effect is in rising trend, and high-purity Radix Sanguisorbae tannin is under Isodose, the compound sanguiin that is better than wherein containing, catechin etc., there is the effect of protection marrow hemopoietic stem cells, it suppresses to have remarkable protective effect to chemical substance and radiation-induced mouse bone marrow cells DNA, can leukocyte increasing, while use with chemotherapy drugs in combination, not only strengthen the curative effect to tumor, can also protect medullary cell and complete blood cell, reduce or avoid the damage of chemotherapeutics to medullary cell and complete blood cell, and preparation technology is simple, yield is high, for clinical treatment and prevention because of radiotherapy, the inhibition of the normal marrow cell that chemotherapy causes provides a kind of new medication to select.

Industrial applicability

Radix Sanguisorbae tannin of the present invention has the effect of protection marrow hemopoietic stem cells, and it suppresses to have remarkable protective effect to chemical substance and radiation-induced mouse bone marrow cells DNA.Meanwhile, Radix Sanguisorbae tannin can also leukocyte increasing, has obvious leukogenic effect.This product, for the inhibition of the normal marrow cell that clinical remission causes because of radiotherapy, chemotherapy provides a kind of new medication to select, has fabulous clinical practice and industrial prospect.

Claims

1. sanguiin has the purposes in the medicine of protecting medullary cell effect in preparation.

2. purposes according to claim 1, is characterized in that, described sanguiin is that sanguiin content is 100% compound.

3. purposes according to claim 1, is characterized in that, described sanguiin is the mixture containing sanguiin 0.05～3wt%, preferably contains the mixture of sanguiin 1～2wt%.

4. purposes according to claim 3, is characterized in that, also comprises at least one in catechin and procyanidin B 2 in described mixture, in preferred described mixture, also comprises catechin and procyanidin B 2.

5. purposes according to claim 4, is characterized in that, in described mixture, the content of catechin is 1～5wt%, is preferably 2～5wt%, and in described mixture, the content of procyanidin B 2 is 0.05～1.5wt%, is preferably 0.05～0.4wt%.

6. according to the purposes described in any one in claim 1～5, it is characterized in that, described medicine is the medicine that prevents and/or treats the inhibition normal marrow cell being caused by radiotherapy or chemotherapy.

7. according to the purposes described in any one in claim 1～5, it is characterized in that, described medicine is the medicine that prevents and/or treats the anemia, leukopenia or the thrombocytopenia that are caused by radiotherapy or chemotherapy.

8. the purposes of sanguiin in the medicine of preparation treatment leukopenia.

9. a pharmaceutical composition that prevents and/or treats medullary cell inhibition or leukopenia, it is to add pharmaceutically acceptable adjuvant or complementary composition to be prepared into pharmaceutically conventional preparation by the sanguiin of effective dose.

10. want the pharmaceutical composition described in 9 according to right, it is characterized in that, described preparation is oral formulations.