since exogenous gangliosides can spontaneously `` '' insert '' '' into membranes , it is postulated that the effect of the gm1 may be due to alterations of membrane processes ( eg , lipid hydrolysis , phospholipase activation , levels and membrane action of arachidonic acid , ionic permeation ) that are characteristic of edema .
C0020291
d hydrolys
C0031671
phospholipa