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  • Title: [Study on Yiqi Huayu Bushen Recipe and its disassembled recipes in regulating mRNA expression of collagens and metabolic enzymes in extracellular matrix of cervical disc].
    Author: Shi Q, Wang YJ, Li CG.
    Journal: Zhongguo Zhong Xi Yi Jie He Za Zhi; 2007 Feb; 27(2):142-6. PubMed ID: 17343002.
    Abstract:
    OBJECTIVE: To study the effects of Yiqi Huayu Bushen Recipe (YHBR) and its disassembled recipes on mRNA expressions of collagen I, III, X, matrix metalloproteinase (MMPs) and tissue inhibitor of metalloproteinase (TIMP) in extracellular matrix of cervical disc in model rats of cervical vertebral disc degeneration. METHODS: The mRNA expressions of collagens, MMP-13 and TIMP-1 were detected by RT-PCR. The strips were scanned by gel imaging system scanner, and the optical density was autocalculated by computer. RESULTS: Compared with those of the sham-operative group, the mRNA expressions of collagen I , Ill and X and MMP-13 of the model rats increased markedly (P < 0.01), which were lowered by YHBR and its disassembled recipes (P < 0.01 or P < 0.05), and the levels after YHBR treatment were significantly different to those after Western medicine treatment. However, no remarkable change was found in TIMP-1 mRNA expression in the model rats (P > 0.05). CONCLUSION: In the degenerated intervertebral disc the mRNA expressions of collagen I , III, X and MMP-13 increased, TIMP-1 mRNA expression decreased and the proportion of MMPs/TIMP was in imbalance. YHBR and its disassembled recipes could postpone the degeneration of intervertebral disc through regulating mRNA expressions of collagens and their correlated metabolic enzymes.
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