[Action of the chorionic gonadotropin hormone on the gap junctions network in the antral follicles of rat].
A morphometrical study of gap junctions has been realized in rat antral follicle after an injection of 20 I. U. of hCG. A clear and rapid reduction of the gap junctions number and of the membranous surface they are occupying has been demonstrated whatever the follicle region one consider. The significance of those gap junction modifications is discussed with respect to resumption of meiotic maturation.
D000818:Animals; D002462:Cell Membrane / Q000187:drug effects / Q000648:ultrastructure; D002463:Cell Membrane Permeability / Q000187:drug effects*; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D005260:Female; D007365:Intercellular Junctions / Q000187:drug effects*; D006080:Ovarian Follicle / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors
D006063:Chorionic Gonadotropin
Action de l'hormone chorionique gonadotrope sur le réseau de jonctions perméables (gap junctions) existant dans les follicules antraux de rat.