CN101032494A - Application of Asiatic Acid in the preparing of medicine for preventing and curing kidney fibrosis - Google Patents

Application of Asiatic Acid in the preparing of medicine for preventing and curing kidney fibrosis Download PDF

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CN101032494A
CN101032494A CN 200610024408 CN200610024408A CN101032494A CN 101032494 A CN101032494 A CN 101032494A CN 200610024408 CN200610024408 CN 200610024408 CN 200610024408 A CN200610024408 A CN 200610024408A CN 101032494 A CN101032494 A CN 101032494A
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uuo
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kidney
asiatic acid
medicine
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赵帅
秦燕
刘全海
徐智儒
陈静
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Shanghai Institute of Pharmaceutical Industry
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Shanghai Institute of Pharmaceutical Industry
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Abstract

本发明公开了积雪酸在制备预防或治疗肾脏纤维化的药物中的应用。本发明通过用积雪酸对大鼠肾脏纤维化的影响,证实了积雪酸具有抗肾脏纤维化的作用。因而,积雪酸可作为活性成份用于制备抗肾脏纤维化的药物。The invention discloses the application of asiatic acid in the preparation of medicines for preventing or treating renal fibrosis. The present invention confirms that asiatic acid has the effect of resisting renal fibrosis through the influence of asiatic acid on rat renal fibrosis. Therefore, asiatic acid can be used as an active ingredient in the preparation of drugs against renal fibrosis.

Description

The application of accumulated snow acid in the medicine of preparation prevention or treatment renal fibrosis
Technical field
The present invention relates to the application of accumulated snow acid in pharmacy, relate in particular to the application of accumulated snow acid in the medicine of preparation prevention or treatment renal fibrosis.
Background technology
Herba Centellae is a kind of plant amedica, and asiaticoside is the material that extracts from Herba Centellae, is also referred to as asiaticoside (Asiaticoside), and structure is seen formula II.
Figure A20061002440800031
Formula II
Discover asiaticoside behind the treatment mucocutaneous injury, it has the effect of fiber cicatrix hyper-proliferative.This material all has listing as the cosmetics and the medicine of associated uses, and asiaticoside is its main active ingredient in these products.Accumulated snow acid is the aglycon that promptly forms after the asiaticoside desaccharide, and its structure is seen shown in the formula I:
Figure A20061002440800032
Formula I
Summary of the invention
The purpose of this invention is to provide the application of accumulated snow acid in the medicine of preparation prevention or treatment renal fibrosis.
Wherein, described kidney can be matter and/or glomerule between kidney, matter between preferred kidney.
Inquire into the protective effect of accumulated snow acid (JXS) to unilateral ureteral occlusion (UUO) (UUO) kidney of rats interstitial fibrosis.Method: rat is divided into UUO group and UUO+JXS group at random, and other establishes sham-operation (SHAM) group.Medication group (being the UUO+JXS group) Rhizoma Atractylodis Macrocephalae first three day filling stomach gives accumulated snow acid 20mg/kg, matched group (being the SHAM group) and UUO group give the equal-volume normal saline, put to death animal on the 21st day until postoperative, observe the left kidney pathological change, relatively matter matrix content and kidney region fibrosis degree between kidney; With α-smooth muscle actin (immunohistochemical observation renal cells situation transition of α-SMA).
Positive progressive effect of the present invention is: the present invention has confirmed that by using accumulated snow acid to the Fibrotic influence of rat kidney accumulated snow acid has the effect of anti-renal fibrosis.Thereby accumulated snow acid can be used as the medicine that active ingredient is used to prepare anti-renal fibrosis.
The specific embodiment
Embodiment 1
1. materials and methods
1.1 laboratory animal wistar rat (Chinese Academy of Sciences's Shanghai Experimental Animal Center) is male, healthy cleaning level, and in 8 ages in week, body weight 180~220g, feeding environment are 5 in every cage, 22 ± 2 ℃ of room temperatures, relative humidity 55 ± 2%.
1.2 medicine and the acid of reagent accumulated snow are made by Guangxi Chang Zhou natural product development corporation, Ltd. or Shanghai Institute of Pharmaceutical Industry, (antibody of α-SMA) is available from SIGMA company for mouse anti rat α-smooth muscle actin, the anti-mice IgG of rabbit instant two is anti-available from last hai antibody company, and DBA colour reagent box is available from magnificent company.
1.3 method
1.3.1 rat was fixed with the right clinostatism in 10% chloral hydrate 0.03ml/kg IP anesthesia back when animal model was made operation, the cropping sterilization, the left abdomen otch, separate the left side ureter, 5-0 silk thread ligation twice, last one ligation point is positioned at left inferior pole of kidney level, cuts off ureter between twice ligation point, and layer-by-layer suture is made the UUO model.Sham operated rats is only opened abdomen and free left side ureter, but not ligation and cutting off.
1.3.2 animal grouping and administration rat are divided into three groups at random, are respectively sham-operation (SHAM) group, UUO group and UUO+JXS group, at UUO art first three day beginning administration JXS 36mg/kg until UUO postoperative the 21st day.
1.3.3 the 21st day blood specimen of inspection item postoperative isolated serum and detected biochemical routine, puts to death animal, it is quantitative to extract UUO rats with left residual urine; Leave and take left kidney, nephridial tissue is divided 2 parts, and a part is made the light microscopic pathologic finding, and another part percutaneous, medullary substance separation are placed on-70 ℃ of frozen α of work-SMA SABC.The SHAM rat is left and taken left kidney and does same the processing.
1.3.4 tissue pathology checking's nephridial tissue is fixed through 4% paraformaldehyde buffer, PAS and MASSON dyeing is carried out in 3 μ m section after the paraffin embedding.Light microscopic is pathological changes such as matter cell infiltration degree and fibrosis between observation PAS stained cortex kidney down, and double blinding gives PAS dyeing kidney ID change score down, and standard is: 0 minute (the ID change accounts for matter total amount<5%); 1 minute (the ID change accounts for a matter total amount 5%-15%); 2 minutes (the ID change accounts for a matter total amount 15%-30%); 3 minutes (the ID change accounts for a matter total amount 30%-60%); 4 minutes (the ID change accounts for matter total amount>60% or focal necrosis is arranged).Every section is got 10 nonoverlapping visuals field under 200 times of situations of amplification, given a mark in each visual field respectively, averages as the ID change score of this specimen.Semi-quantitative analysis is carried out in section to MASSON dyeing nephridial tissue, concrete steps are as follows: adopt Beijing Institute of Aeronautics medical image analysis management system, under identical conditions, 15 of every specimen selection are not repeated the visual field (40 *), be considered as positive target with being rendered as green zone of fiber (removing glomerule and trunk), with the ratio of positive area and the statistics field gross area fibrosis index as matter between renal tubules.Adopting Beijing Institute of Aeronautics medical image acquisition and analytical system software that MASSON is dyeed analyzes.
1.3.5 α-conventional dewaxing of SMA SABC section is immersed 37 ℃ and is contained 1.5%H to anhydrous 2O 2Methanol 30min eliminate the endogenous peroxidase, trypsinization exposes antigen site, an anti-(mouse anti rat α-SMA antibody, 1: 200) 4 ℃ spend the night, then place 30min for 37 ℃ with corresponding instant two anti-(the anti-mice IgG of rabbit, 1: 200), develop the color with DAB at microscopically at last.The method that adopts the deletion first antibody simultaneously is as negative control.(400 *) adopt Beijing Institute of Aeronautics medical image analysis management system to carry out semi-quantitative analysis to 15 nonoverlapping visuals field of every section picked at random under high power lens, and the result represents with the positive target gross area/statistics gross area.All data are represented with x ± s, utilize SPSS10.0 software to carry out statistical analysis, adopt one factor analysis of variance and SNK check respectively to organize difference.
2. result:
2.1 the experimental rat base values is observed UUO rats with left renal pelvis and dilatation of ureter, interiorly is the residual urine after blocking.UUO group and UUO+JXS group residual urine volume there was no significant difference, each treated animal serum biochemistry index is normally, compares there was no significant difference between group, sees Table 1.
Table 1 UUO rat model base values (n=6)
Group ?Triglyceride ? ?mmol.L -1 ?Cholesterol ? ?mmol.L -1 ?Glucose ? ?mmol.L -1 ?BUN ? ?mmol.L -1 ?Creatinine ? ?μmol.L -1 ?Resudual ? ?Urine/ml
?SHAM ?UUO ?UUO+JXS ?0.92±0.49 ?0.89±0.36 ?0.91±0.78 ?2.01±0.45 ?1.93±0.28 ?1.82±0.33 ?6.39±2.03 ?5.86±1.88 ?6.58±1.45 ?6.32±1.42 ?7.17±2.25 ?5.65±1.08 ?29.65±5.32 ?36.30±6.21 ?34.58±7.20 ?0 ?3.86±0.40 ?3.52±0.32
Triglyceride: triglyceride; Cholesterol: cholesterol; Glucose: glucose; BUN: serum urea nitrogen; Creatinine: creatinine; Resudual Urine residual urine volume.
2.2 the pathological change of rat left side nephridial tissue
2.2.1PAS dyeing is compared with SHAM group rat, matter broadening between 21 days nephridial tissues has more inflammatory cell infiltration behind the UUO, tubular ectasia, and accidental urinary cast intracavity has neutrophil accumulation, and visible renal cells atrophy, necrosis, comes off; UUO+JXS organizes above-mentioned change and obviously alleviates, and each is organized kidney ID change score and the results are shown in Table 2.
Table 2 kidney of rats histopathology, SABC result (n=6)
Group Damage?score ?Interstitial?fibrosis?index ?α-SMA?Positive?area/%
?SHAM ?UUO ?UUO+JXS 0 2.198±0.760 a1.326±0.586 ab ?0.021±0.004 ?0.087±0.203 a?0.042±0.147 b ?0.003±0.001 ?0.132±0.058 a?0.021±0.123 ab
Compare with the SHAM group, aP<0.05; Compare with the UUO group, bP<0.05
Damage score: damage umber; Interstitial fibrosis index: interstitial fibrosis index; The positive area of α-SMA Positive area: α-SMA.
2.2.2 having a small amount of green, the visible glomerular basement membrane of MASSON dyeing SHAM group section dyes several no gaps between tubule.Matter broadening and extensive green between 21 days nephridial tissues behind the UUO show that matrix components increases, and fibrosis is obvious.UUO+JXS group kidney region fibrosis index obviously alleviates, and the results are shown in Table 2.
2.3 left kidney α-SMA SABC detects SHAM group rat α-SMA and only is expressed in renal blood vessels smooth muscle and tunica adventitia confluent monolayer cells, does not almost have expression at a renal tubules and a matter.UUO group renal cortex α-SMA dyeing obviously increases, mainly be positioned at marrow, cortex renal cells and broadening kidney between the matter district α-SMA positive expression also appears, the prompting renal cells to the muscle fiber cell transition, a matter fibroblast showed increased.The expression of the UUO+JXS group α-SMA of cortical areas significantly reduces, and sees Table 2.
Conclusion: compare with the UUO group, the pathological change and the kidney region fibrosis degree of UUO+JXS group left kidney obviously alleviate (p<0.05), the expression of renal cells α-SMA obviously reduces (p<0.05), and the SHAM group does not have obvious influence to the left kidney pathology.Accumulated snow acid has protective effect to the kidney of rats interstitial fibrosis due to the UUO, and its mechanism may partly be by reducing renal cells to the transition of muscle fiber cell, thereby improves kidney region fibrosis.

Claims (2)

1、积雪酸在制备预防或治疗肾脏纤维化的药物中的应用,其中该积雪酸的化学结构如式I所示:1. Application of asiatic acid in the preparation of drugs for preventing or treating renal fibrosis, wherein the chemical structure of asiatic acid is shown in formula I:                             式I。Formula I. 2、如权利要求1所述的应用,其特征在于:所述的肾脏为肾间质。2. The application according to claim 1, characterized in that: the kidney is renal interstitium.
CN 200610024408 2006-03-06 2006-03-06 Application of Asiatic Acid in the preparing of medicine for preventing and curing kidney fibrosis Pending CN101032494A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2231139B1 (en) * 2008-01-11 2015-02-25 Shanghai Institute of Pharmaceutical Industry Therapeutic formulations based on asiatic acid and selected salts thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2231139B1 (en) * 2008-01-11 2015-02-25 Shanghai Institute of Pharmaceutical Industry Therapeutic formulations based on asiatic acid and selected salts thereof

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