模拟失重大鼠肠系膜小动脉平滑肌细胞电压依赖性钙离子通道电流的

1、 32 生理学报 Acta Physiologica Sinica, February 25, 2005, 57(1: 27-32 10 2+ KV 上调 结合 L-VDC 的下调可使 Ca 内流减少， 这 可能也是失重下主要阻力性动脉血管功能与结构下 调的电生理学自体调节机制之一。但 L-VDC 电流密 度的降低是由于通道表达的降低还是单个通道功能 的改变引起还有待进一步阐明。 参考文献 1 Zhang LF ( 张立藩,Yu ZB, Ma J, Mao QW. Peripheral effector mechanism hypothesis on cardiovascular dysfun

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