PMID- 2865726 OWN - NLM STAT- MEDLINE DCOM- 19851203 LR - 20160725 IS - 0375-9660 (Print) IS - 0375-9660 (Linking) VI - 31 IP - 3 DP - 1985 May-Jun TI - [Role of histamine as an intermediary in the action of estradiol on the rat uterus: inhibition of the hormonal induction of enzymes using histamine antagonists]. PG - 73-8 AB - The administration of methiamide, a blocker of histamine H2-receptors, to rats was shown to prevent the induction of hexokinase (HK) and glucose-6-phosphate dehydrogenase (G-6PD) caused by both histamine and estradiol. An inhibitory effect of methiamide remained stable up to 16 h after histamine and estradiol administration. Diphenhydramine, a blocker of histamine H1-receptors, produces a short-term inhibitory effect on the HK and G-6PD activity stimulated by histamine and estradiol. The short-term nature of the diphenhydramine effect may be attributed to a low affinity to histamine H2-receptors and histamine fast dissociation. It may be concluded that some of the estradiol effects, particularly the HK and G-6PD induction in the uterus are histamine-mediated, apparently by means of H2-receptors. The administration of histamine to rats increases the uterus mass causing its inundation, and H1- and H2-blockers prevent this effect of histamine. However, the above histamine antagonists do not inhibit uterus inundation caused by estradiol. A conclusion is made that estradiol stimulates the uterus inundation not only by means of histamine but also by some other means. FAU - Pankova, T G AU - Pankova TG FAU - Igonina, T M AU - Igonina TM FAU - Salganik, R I AU - Salganik RI LA - rus PT - English Abstract PT - Journal Article TT - Rol' gistamina kak posrednika v deistvii estradiola ma matku krys: tormozhenie gormonal'noi induktsii fermentov s pomoshch'iu antagonistov histamina. PL - Russia (Federation) TA - Probl Endokrinol (Mosk) JT - Problemy endokrinologii JID - 0140673 RN - 0 (Histamine H1 Antagonists) RN - 0 (Histamine H2 Antagonists) RN - 3K7670861M (Metiamide) RN - 4TI98Z838E (Estradiol) RN - 820484N8I3 (Histamine) RN - 8GTS82S83M (Diphenhydramine) RN - EC 1.1.1.49 (Glucosephosphate Dehydrogenase) RN - EC 2.7.1.1 (Hexokinase) SB - IM MH - Animals MH - Diphenhydramine/pharmacology MH - Enzyme Induction MH - Estradiol/*physiology MH - Female MH - Glucosephosphate Dehydrogenase/*biosynthesis MH - Hexokinase/*biosynthesis MH - Histamine/*physiology MH - Histamine H1 Antagonists/pharmacology MH - Histamine H2 Antagonists/pharmacology MH - Metiamide/pharmacology MH - Rats MH - Rats, Inbred Strains MH - Uterus/drug effects/*enzymology EDAT- 1985/05/01 00:00 MHDA- 1985/05/01 00:01 CRDT- 1985/05/01 00:00 PHST- 1985/05/01 00:00 [pubmed] PHST- 1985/05/01 00:01 [medline] PHST- 1985/05/01 00:00 [entrez] PST - ppublish SO - Probl Endokrinol (Mosk). 1985 May-Jun;31(3):73-8.