Background technology
Fructus Aurantii Immaturus (Fructus aurantii immaturus) is the dry young fruit of rutaceae Citrus aurantium Linn. Citrus aurantiumL. and mutation or Fructus Citri sinensis Citrus sinensis Osbeck.Have the dispelling the stagnated QI removing food stagnancy, the diffusing painful abdominal mass of reducing phlegm, the stagnate effect of relieving distension of regulating the flow of QI to ease the stomach, row.
Fructus Aurantii (Fructus aurantii) is the dry immature fruit of rutaceae Citrus aurantium Linn. Citrus aurantium L. and variety thereof, has regulating the flow of QI to ease the stomach, the effect of the stagnant relieving distension of row.
Fructus Aurantii Immaturus, Fructus Aurantii are conventional Chinese medicine, are applied to the existing two thousand years of the history of curing the disease clinically, are widely used in the traditional Chinese medical science compound preparation of curing the disease.Once had pharmacological evaluation to show, the Fructus Aurantii Immaturus medicament can make the laboratory animal gastrointestinal smooth muscle shrink the rhythm and pace of moving things to be increased, but Shang Weijian promotes the report of digestive tract power active ingredient or active ingredient and preparation thereof to Fructus Aurantii Immaturus, Fructus Aurantii.
In order to determine the effective ingredient or the effective site of Fructus Aurantii Immaturus, we have adopted the targeting under the active guidance to follow the trail of separation method and have studied, and each separated part is carried out active testing.Experimental result shows, isolated Hesperidin (Hesperidin), naringin (Naringin) and the effective site and the compositions thereof that contain these two kinds of compositions all have the effect that promotes digestive tract power from Fructus Aurantii Immaturus.
Wherein the structure of Hesperidin is:
Molecular formula: C
28H
34O
15, thin dendroid acicular crystal (pH6~7 precipitation gained).M.p.258~262 ℃, [α]
D 20-76 ° (c 2, pyridine).Slightly be slightly soluble in methanol and hot glacial acetic acid, be dissolved in acetone, benzene and chloroform hardly, and be soluble in diluted alkaline and pyridine.
The structure of naringin is:
Molecular formula: C
27H
32O
14, being dried to weight at 110 ℃ is two water things, m.p.171 ℃.[α]
D 19-82 ° (ethanol).1 gram is dissolved in 1000ml water, is dissolved in acetone, ethanol, hot acetic acid and hot water, is insoluble to ether, hexane and chloroform.
Summary of the invention
The object of the present invention is to provide a kind of Fructus Aurantii Immaturus or Fructus Aurantii effective site.
Another object of the present invention is to provide the compositions that contains this effective site.
Another purpose of the present invention is to provide the preparation method of this effective site.
Another object of the present invention is to provide this effective site to promote the purposes of digestive tract power medicine in preparation.
Another purpose of the present invention is to provide this effective site to lack the medicinal usage of respiratory tract infection diseases such as disease and tracheitis, cough at gastric motilitys such as treatment or prevention flatulence, anorexia, dyspepsias.
Fructus Aurantii Immaturus of the present invention or Fructus Aurantii effective site are to make with following preparation method:
With Chinese medicine Fructus Aurantii Immaturus or Fructus Aurantii, pulverize, use ethanol extraction, merge extractive liquid, reclaims ethanol to there not being the alcohol flavor, obtains the effective site of Fructus Aurantii Immaturus or Fructus Aurantii.Preferred effective site contains Hesperidin and the naringin more than 20%.
Fructus Aurantii Immaturus of the present invention or Fructus Aurantii effective site or compositions are mixed by recipe quantity with adjuvant, granulate, can be made into dosage forms such as tablet, capsule, be used for the treatment of disease and acute and chronic respiratory tract diseases such as flatulence, dyspepsia, infantile anorexia.
Below example is confirmed such use by experiment.
1. animal acute toxicity test
(1) oral administration
Healthy male mice, body weight 18-25 gram is used Fructus Aurantii Immaturus effective site or compositions (Hesperidin and naringin ratio are 1: 1) to be made into aqueous solution respectively and is irritated stomach 5.0g/kg, in a continuous week, does not see dead mouse.
(2) drug administration by injection
Healthy male mice, body weight 18-25 gram is used Fructus Aurantii Immaturus effective site or compositions (Hesperidin and naringin ratio are 1: 1) to be made into aqueous solution respectively and is carried out lumbar injection, in a continuous week, observes the dead mouse situation.The LD of Fructus Aurantii Immaturus effective site
50Value is the LD of 4.80 ± 0.550g/kg, compositions
50Value is 4.10 ± 0.410g/kg.
2. to the influence of mice gastric emptying
Adopt atropine, dopamine inhibition mice gastric emptying and neostigmine to cause the mouse small intestine carbon powder and advance two kinds of experimental models, Fructus Aurantii Immaturus effective site and compositions promote the effect of digestive tract power among checking the present invention.
The experimental drug thing is respectively among the present invention gained Fructus Aurantii Immaturus effective site and compositions among the embodiment, faces with preceding and prepares with 0.5%CMC-Na; Reference substance is motilium (an Xi'an Janssen Pharmaceutica lot number 010203), faces with preceding and prepares with distilled water.
2.1 atropine, dopamine are suppressed the influence of mice gastric emptying
Fructus Aurantii Immaturus and Fructus Aurantii effective site and compositions and blank group relatively have significant difference (P<0.001) among the present invention.The results are shown in Table 1 and table 2.
Table 1 Fructus Aurantii Immaturus and Fructus Aurantii effective site and compositions suppress the influence of gastric emptying motion to atropine
Group | Dosage (g/kg) | Number of animals (only) | Residual rate in the methyl orange stomach (X ± S) |
Blank group Fructus Aurantii Immaturus effective site Fructus Aurantii active component composition motilium | -- 1.0 1.0 1.0 0.048 | 12 12 12 12 12 | 371.82±116.02 242.69±88.08 241.60±86.05 231.32±80.34 191.98±54.68 |
Table 2 Fructus Aurantii Immaturus and Fructus Aurantii effective site and compositions suppress the influence of gastric emptying motion to dopamine
Group | Dosage (g/kg) | Number of animals (only) | Residual rate in the stomach (X ± S) |
Blank group Fructus Aurantii Immaturus effective site Fructus Aurantii active component composition motilium | -- 1.0 1.0 1.0 0.048 | 12 12 12 12 12 | 45.09±5.96 33.26±6.79 32.75±6.21 31.47±5.38 39.59±3.93 |
2.2 neostigmine is caused the propulsive influence of mouse small intestine carbon powder
Fructus Aurantii Immaturus and Fructus Aurantii effective site and compositions and blank group relatively have significant difference (P<0.01) among the present invention, the results are shown in Table 3.
Table 3 Fructus Aurantii Immaturus and Fructus Aurantii effective site and compositions cause mice gastric emptying and the propulsive influence of small intestinal carbon powder to neostigmine
Group | Dosage (g/kg) | Number of animals (only) | Residual rate in the stomach (X ± S) | Carbon powder propelling rate (X ± S) |
Blank group Fructus Aurantii Immaturus effective site Fructus Aurantii effective site | -- 1.0 1.0 | 10 10 10 | 22.58±5.28 16.11±5.39 15.89±5.12 | 59.07±16.39 79.31±16.81 78.92±15.92 |
The compositions motilium | 1.0 0.048 | 10 10 | 15.74±3.73 15.26±3.16 | 78.42±13.61 79.15±9.29 |
From above result of study, can draw the present invention and have following characteristics:
1. the present invention has carried out new excavation to Chinese medicine Fructus Aurantii Immaturus and Fructus Aurantii, has found Fructus Aurantii Immaturus and Fructus Aurantii effective site and the compositions new purposes in pharmacy.
2. Fructus Aurantii Immaturus among the present invention and Fructus Aurantii effective site and compositions toxicity are little, and pharmacological action is strong, have good prospect in medicine.
3. raw material of substance Fructus Aurantii Immaturus among the present invention and Fructus Aurantii resource are extensive, inexpensive, and preparation technology is simple.
4. effective site of Fructus Aurantii Immaturus or Fructus Aurantii or compositions can adopt the conventional method of this area to be prepared into various dosage forms, as tablet, pill, capsule, granule, injection etc. with pharmaceutically acceptable excipient among the present invention.The preferred dosage form that contains the effective-part medicinal composition of Fructus Aurantii Immaturus of the present invention or Fructus Aurantii is an oral formulations.Dosage be 20-500mg/ people/time, every day 1-3 time.
Various details embodiment, but content of the present invention is not limited to this fully.
The specific embodiment
Embodiment 1: Fructus Aurantii Immaturus fine powder 600g, 4 times (crude drug: the weight of solvent ratio is 1: 6 with 95% ethanol extraction; 1: 4; 1: 4; 1: 4), merge extractive liquid, reclaims ethanol to there not being the alcohol flavor, adds distilled water to 600ml, and water liquid is used petroleum ether, ethyl acetate, n-butanol extraction 6 times successively, each 200ml.After concentrating, the n-butanol extraction position gets 90g, last D101 type macroporous resin column, water, 25% ethanol, 50% ethanol, 95% ethanol elution successively, 50% ethanol elution position is through containing Hesperidin and the mixed total glycosides (55g) of naringin more than 20% behind the concentrate drying.
Embodiment 2: Fructus Aurantii fine powder 600g, 3 times (crude drug: the weight of solvent ratio is 1: 8 with 70% ethanol extraction; 1: 6; 1: 6), merge extractive liquid, reclaims ethanol to there not being the alcohol flavor, adds distilled water to 600ml, and water liquid is used petroleum ether, ethyl acetate, n-butanol extraction 4 times successively, each 300ml.The n-butanol extraction position behind concentrate drying 82g, last D101 type macroporous resin column, water, 25% ethanol, 50% ethanol, 95% ethanol elution successively, 50% ethanol elution position is through Hesperidin and naringin (47g) that must be more than 20% behind the concentrate drying.