论文部分内容阅读
一、离子与精子启动在70-80年代,许多学者对此进行了探讨,并做了火量研究,对精子启动的机制有了一定的了解。较为公认的学说是几种阳离子跨精子膜运动。同时,cAMP在其中也起着重要的作用。 Na~+是精子启动必不可少的成分,在Na~+内流的同时伴随着H~+外流,以及精子内pH值的升高。这提示精子启动有赖于精子膜两侧Na~+-H~+交换。NH_4~+是唯一可以取代Na~+的作用,引起精子启动及
First, the start of ions and sperm In the 70-80 years, many scholars have discussed this, and made a study of the amount of fire, the mechanism of sperm activation have a certain understanding. The more accepted theory is that several cationic cross-sperm motions. At the same time, cAMP also plays an important role. Na ~ + is an indispensable component of sperm activation, accompanied by H ~ + outflow in Na ~ + influx, and the increase of intracellular sperm pH value. This suggests that sperm activation depends on both sides of sperm membrane Na ~ + -H ~ + exchange. NH_4 ~ + is the only one that can replace Na ~ + and cause sperm to start up