across-membrane transport 溶质通过生物膜从膜一侧向另一侧的传递的过程。 生物膜是生物体内各隔室间的屏障，起着维持膜两侧溶质浓度差、电位差的作用。 跨膜传递的方式分为三类：主动运送、被动运送和胞饮作用。
整合素是普遍存在于细胞表面的跨膜糖蛋白，其主要功能是粘附和信号传递。
Integrins, present essentially on the surface of cells, are transmembrane glycoproteins that function as cell adhesion and transduction of signals.
结论：肾虚雄性大鼠具有细胞膜结构和功能的改变，可能影响膜的不对称性和流动性及跨膜信息传递。
It is concluded that the change of constitution and function of membrane in male rats of kidney asthenia can have effect on the asymmetry, fluidity and transmembrane information transmission.
结论通过细胞膜上L型钙离子通道进行跨膜信号传递，NPY-Y1受体介导促血管平滑肌细胞增殖作用。
Through the signal pathway of L-type calcium channel on the cytomembrane, NPY-Y1 receptor could increase the proliferation of SMCs.
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