Biomaterial Database

Histamine regulation of prolactin secretion through H1- and H2-receptors. 1982

U Knigge, and A Dejgaard, and F Wollesen, and B Thuesen, and P M Christiansen

Histamine (HA) regulates PRL secretion in the rat by a stimulatory effect through H1-receptors and an inhibitory effect through H2-receptors. The effect of HA antagonists on basal and TRH-stimulated PRL secretion was investigated in five normal men. During saline infusion, serum PRL declined, as seen normally after sleep. HA infusion caused a significantly higher PRL secretion than that observed during the saline infusion [maximum change in PRL (delta PRL), 28 +/- 20 vs. -71 +/- 30 microIU/ml; P less than 0.05]. This effect of HA on PRL secretion was inhibited during the combined infusion of HA and the H1-antagonist mepyramine (delta PRL, 28 +/- 20 vs. -77 +/- 13 microIU/ml; P less than 0.025). The PRL-stimulating effect of HA was strongly enhanced during the combined infusion of HA and the H2-antagonist cimetidine (delta PRL, -28 +/- 20 vs. 132 +/- 57 microIU/ml; P less than 0.0125). This effect of HA and cimetidine on PRL secretion was higher than the effect of cimetidine alone (delta PRL, 132 +/- 57 vs. 17 +/- 22 microIU/ml; P less than 0.05). This shows that the H2-antagonist is not the only stimulator of PRL secretion. During the different infusions, serum PRL concentrations were in the following rank order: mepyramine less than saline less than HA less than cimetidine less than HA plus cimetidine. The same rank order was found for the PRL responses to TRH during the different infusions. These data indicate a HA stimulatory effect through H1-receptors and an inhibitory effect through H2-receptors on PRL secretion in human males.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011388	Prolactin	A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate.	Lactogenic Hormone, Pituitary,Mammotropic Hormone, Pituitary,Mammotropin,PRL (Prolactin),Hormone, Pituitary Lactogenic,Hormone, Pituitary Mammotropic,Pituitary Lactogenic Hormone,Pituitary Mammotropic Hormone
D011738	Pyrilamine	A histamine H1 antagonist. It has mild hypnotic properties and some local anesthetic action and is used for allergies (including skin eruptions) both parenterally and locally. It is a common ingredient of cold remedies.	Mepyramine,Pyranisamine,Anthisan,Boots Bite & Sting Relief,Kriptin,Mepyramine Maleate,Pyrilamine Maleate,Maleate, Mepyramine,Maleate, Pyrilamine
D011968	Receptors, Histamine	Cell-surface proteins that bind histamine and trigger intracellular changes influencing the behavior of cells. Histamine receptors are widespread in the central nervous system and in peripheral tissues. Three types have been recognized and designated H1, H2, and H3. They differ in pharmacology, distribution, and mode of action.	Histamine Binding Sites,Histamine Receptors,Histamine Receptor,Binding Sites, Histamine,Receptor, Histamine,Sites, Histamine Binding
D011969	Receptors, Histamine H1	A class of histamine receptors discriminated by their pharmacology and mode of action. Most histamine H1 receptors operate through the inositol phosphate/diacylglycerol second messenger system. Among the many responses mediated by these receptors are smooth muscle contraction, increased vascular permeability, hormone release, and cerebral glyconeogenesis. (From Biochem Soc Trans 1992 Feb;20(1):122-5)	H1 Receptor,Histamine H1 Receptors,H1 Receptors,Histamine H1 Receptor,Receptors, H1,H1 Receptor, Histamine,H1 Receptors, Histamine,Receptor, H1,Receptor, Histamine H1
D011970	Receptors, Histamine H2	A class of histamine receptors discriminated by their pharmacology and mode of action. Histamine H2 receptors act via G-proteins to stimulate ADENYLYL CYCLASES. Among the many responses mediated by these receptors are gastric acid secretion, smooth muscle relaxation, inotropic and chronotropic effects on heart muscle, and inhibition of lymphocyte function. (From Biochem Soc Trans 1992 Feb;20(1):122-5)	Histamine H2 Receptors,H2 Receptors,Receptors, H2,H2 Receptors, Histamine
D002927	Cimetidine	A histamine congener, it competitively inhibits HISTAMINE binding to HISTAMINE H2 RECEPTORS. Cimetidine has a range of pharmacological actions. It inhibits GASTRIC ACID secretion, as well as PEPSIN and GASTRIN output.	Altramet,Biomet,Biomet400,Cimetidine HCl,Cimetidine Hydrochloride,Eureceptor,Histodil,N-Cyano-N'-methyl-N''-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)guanidine,SK&F-92334,SKF-92334,Tagamet,HCl, Cimetidine,Hydrochloride, Cimetidine,SK&F 92334,SK&F92334,SKF 92334,SKF92334
D006632	Histamine	An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.	Ceplene,Histamine Dihydrochloride,Histamine Hydrochloride,Peremin
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013610	Tachycardia	Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.	Tachyarrhythmia,Tachyarrhythmias,Tachycardias