title: [Effects of estradiol-7 alpha-butyric acid on hypothalamus cells].
abstract: When Rat uterus was incubated at 37 degrees with estradiol-7 alpha-butyric acid (OII-7 alpha-bu), no interference was observed with the intracellular estradiol receptors. In addition, OII-7 alpha-bu did not display estrogenic effect such as in vivo inhibition of LH secretion in Rat and in vitro increased activity of the enzyme ornithine-decarboxylase in the chick oviduct. Contrary to these negative findings, we have observed preoptic and septal cells in the guinea pig where micro-iontophoresis of OII-7 alpha-bu triggers changes of the electric activity within a second. We submit therefore, that this latter response is due to an interaction between the acid estrogen and the neuron membrane.
mesh_terms: D000818:Animals; D002645:Chickens; D004558:Electric Stimulation; D004958:Estradiol / Q000031:analogs & derivatives* / Q000378:metabolism / Q000494:pharmacology; D005260:Female; D006168:Guinea Pigs; D007031:Hypothalamus / Q000187:drug effects / Q000502:physiology*; D009474:Neurons / Q000187:drug effects / Q000502:physiology; D009955:Ornithine Decarboxylase / Q000378:metabolism; D010057:Oviducts / Q000201:enzymology; D051381:Rats; D011960:Receptors, Estrogen / Q000378:metabolism; D014599:Uterus / Q000378:metabolism*
chemical_list: D011960:Receptors, Estrogen; D004958:Estradiol; D009955:Ornithine Decarboxylase
vernacular_title: Effets de l' "oestradiol-7 alpha-acide butyrique" au niveau de cellules hypothalamiques.