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Abstract Title:

Matrix degradation inhibitory effect of Schisandra fructus on human articular cartilage and chondrocytes.

Abstract Source:

J Ethnopharmacol. 2006 Jun 30;106(2):279-84. Epub 2006 Apr 3. PMID: 16580800

Abstract Author(s):

Soo Im Choi, So Ra Park, Tae Ryeon Heo

Abstract:

The purpose of this study is to assess the protective effects exerted by Schisandra fructus (SF) on hyaluronidase (HAase) and the recombinant human interleukin-1beta (IL-1beta) induced matrix degradation in human articular cartilage and chondrocytes. The effect of SF on the matrix gene expression of immortalized chondrocyte cell line C-28/I2 treated with HAase was investigated using a reverse transcription polymerase chain reaction (RT-PCR). In addition, the effects of SFEA on HAase and IL-1beta induced matrix degradation in human articular cartilage were assessed using a staining method, and the quantity of glycosaminoglycan (GAG) degraded was calculated from the cultured media. In HAase treatment group, the released GAGs content increased significantly to 15.8+/-0.7 microg, compared with control levels (5.0+/-0.2 microg), whereas co-treatment with SFEA (100 microg/ml) reduced the GAG release to 10.8+/-0.7 microg (P<0.05). Also, in the group treated only with IL-1beta (11.9+/-0.3 microg), the amount of released GAG increased significantly compared to the control (7.9+/-0.1 microg) and the SFEA-treated group (7.8+/-0.4 microg). SFEA at 100 microg/ml inhibited PG degradation (9.0+/-0.5 microg, P<0.05). However, no concentration-dependent increases in inhibitory activity were observed. Therefore, since SFEA treatment resulted in no pathological impact on either the chondrocytes or cartilage, we suggest that SF can be safely used as an effective material for the prevention of proteoglycan (PG) degradation.

Study Type : In Vitro Study

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Sayer Ji
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