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Ethanolic extracts of babandotan leaves (Ageratum conyzoides L.) prevents inflammation and proteoglycan degradation by inhibiting TNF-α and MMP-9 on osteoarthritis rats induced by monosodium iodoacetate.

Abstract：

OBJECTIVE:To analyze the effects of Ageratum conyzoides L. on the monosodium iodoacetate induced osteoarthritis rats. METHODS:Thin layer chromatography was performed to analyze the constituents of the babandotan extract leaves. White male Sprague-Dawley rats used in this study were divided into 6 groups: normal control and negative control groups, both given 0.5% carboxymethyl cellulose; the positive control group that was given glucosamine and chondroitin suspension (486 mg/200 g B.W.); the 3 dose variation extract groups including dose 1, 2, and 3 that were given 40, 80, and 160 mg/200 g B.W. respectively on day 29 until 50. All the groups were induced with 0.05 mL monosodium iodoacetate (20 mg/mL) on day 1, except normal control induced by saline. Measurement of edema volume of rat knees was performed on day 0, 8, 15, 22, 29, 43, and 50. Hematology data was measured at day 1, 29 and 50. Serum was collected at day 50 to evaluate TNF-α and MMP-9 by ELISA. Cartilage histopathology was evaluated by staining with H&E and Safranin-O-fast green staining on day 50. RESULTS:The babandotan leaves extract dose 2 (80 mg/200 g B.W.) and dose 3 (160 mg/200 g B.W.) could decrease the edema volume, increase the area and thickness of articular cartilage, and increase proteoglycan level. Particularly, dose 3 (160 mg/200 g B.W.) of extract babandotan leaves were able to significantly decrease the number of leukocytes, lymphocytes and udem volume, and decrease TNF alpha and MMP-9 levels. CONCLUSIONS:Babandotan leaves extract can recover inflammation and cartilages degradation by inhibiting TNF-α in inflammation processes and MMP-9 in the collagenase reaction in the cartilages.

journal_name

Asian Pac J Trop Med

journal_title

Asian Pacific journal of tropical medicine

authors

Bahtiar A,Nurazizah M,Roselina T,Tambunan AP,Arsianti A

doi

10.1016/j.apjtm.2017.03.006

subject

Has Abstract

pub_date

2017-03-01 00:00:00

pages

270-277

issue

eissn

1995-7645

issn

2352-4146

pii

S1995-7645(16)30443-6

journal_volume

pub_type

杂志文章

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Ethanolic extracts of babandotan leaves (Ageratum conyzoides L.) prevents inflammation and proteoglycan degradation by inhibiting TNF-α and MMP-9 on osteoarthritis rats induced by monosodium iodoacetate.