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  • Title: [Testosterone's effect on tPA and PAI-1 mRNA levels of HUVEC].
    Author: Jin H, Li YG, Wang DM, Tan XR.
    Journal: Zhonghua Nan Ke Xue; 2005 Aug; 11(8):584-6. PubMed ID: 16138576.
    Abstract:
    OBJECTIVE: To investigate the effect of testosterone with varied concentrations on the tPA and PAI-1 mRNA levels of Human umbilical vein endothelial cells (HUVEC). METHODS: HUVEC within 2 - 3 passages were cultured with testosterone (3, 30, 3 x 10(3), 3 x 10(4) nmol/L) , and the control confluent cells were cultured in the same medium without steroid for 48 hours. RT-PCR was carried out to detect tPA and PAI-1 mRNA levels. RESULTS: tPA mRNA level increased, while PAI-1 mRNA levels decreased significantly, at the testosterone concentrations ranging from 3 to 3 x 10(3) nmol/L (P < 0.05). Both tPA and PAI-1 mRNA level decreased obviously of 3 x 10(4) nmol/L group. CONCLUSION: The results indicated that testosterone could stimulate tPA gene expression, while decreased PAI-1 mRNA level of HUVEC, which suggested that testosterone might have beneficial effects on preventing male's thrombotic diseases.
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