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1.
Chinese Journal of Microbiology and Immunology ; (12): 115-119, 2010.
Article in Chinese | WPRIM | ID: wpr-379980

ABSTRACT

Objective To study the hypoxia-inducible factor-1α (HIF-1α) expression in the col-lagen induced arthritis(CIA) model and its role in rheumatoid arthritis (RA) pathogenesis. Methods We established CIA model, and taked CIA model of the ankle joint to have them HE staining and HIF-1α immu-nohistochemistry staining, then the HIF-1α expression in the tissues of RA was observed. Results The ex-pression of CIA synovial membrane of rat and the lower synodal both was expressed in HIF-1α. The positive expression of HIF-1α reached the highest volume in the first 21 days. Then, with the disease progression, the expression gradually decreased, which was in significantly positive relation with the synovial pathology score, synovial hyperplasia and angingenesis rating score, however, the expression was no positively correla-ted with the inflammatory infiltration. Conclusion The expression of HIF-1α in RA tissue is positively re-lated with inflammation severity, It indicates that HIF-1α is closely related to the occurrence and develop-ment of RA.

2.
Chinese Pharmacological Bulletin ; (12)2003.
Article in Chinese | WPRIM | ID: wpr-562350

ABSTRACT

Aim To investigate the cardioprotective effects of Cyclovirobuxine D on pure cultared neonatal rat cardiomyoeytes exposed to hypoxia-reoxygenation (H/R) injury and the mechanisms. Methods The hypoxia/reoxygenation(H/R) injury model of pure cultured neonatal rat cardiomyocytes was developed.The concentration of lactate dehydrogenase (LDH) and malonialdehvde (MDA), the activity of super-oxide dismutes (SOD) and caspase-3, the apoptosis rate of cardiomyocyte were measured.Results Compared with the control group, the model group showed lower activity of SOD and higher concentrations of LDH , MDA, the apoptosis rate and activity of caspase-3(P

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