Effect of cimetidine on prolactin secretion in normal controls and hyperthyroid patients. 1982

K Kamijo, and A Saito, and T Kato, and K Kawasaki, and M Suzuki, and T Yabana, and A Yachi, and T Wada

Nine healthy female controls and 10 hyperthyroid female patients were studied. The intravenous administration of 200 mg cimetidine, an H2-receptor antagonist, was followed by a significant and marked rise in serum prolactin levels in all control subjects. There was no significant difference in serum PRL response to cimetidine injection between the euthyroid controls and hyperthyroid patients. But max delta PRL, the change from basal to peak values, is significantly lower in the hyperthyroid patients than in the controls. There was a significant negative correlation between max delta PRL and serum T4 or T3 levels in hyperthyroid patients before and after treatment with MMI or PTU. It appears from our data that cimetidine induced PRL release was blunted in hyperthyroid patients.

UI MeSH Term Description Entries
D006980 Hyperthyroidism Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones increase BASAL METABOLIC RATE. Hyperthyroid,Primary Hyperthyroidism,Hyperthyroidism, Primary,Hyperthyroids
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008713 Methimazole A thioureylene antithyroid agent that inhibits the formation of thyroid hormones by interfering with the incorporation of iodine into tyrosyl residues of thyroglobulin. This is done by interfering with the oxidation of iodide ion and iodotyrosyl groups through inhibition of the peroxidase enzyme. Methymazol,Thiamazole,1-Methyl-2-mercaptoimidazole,Favistan,Mercasolyl,Mercazol,Mercazole,Mercazolyl,Merkazolil,Methizol,Methylmercaptoimidazole,Metisol,Metizol,Strumazol,Tapazole,Thiamazol Henning,Thiamazol Hexal,Thimazol,Thyrozol,Tiamazol,Tirodril,1 Methyl 2 mercaptoimidazole,Henning, Thiamazol,Hexal, Thiamazol
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
D011441 Propylthiouracil A thiourea antithyroid agent. Propythiouracil inhibits the synthesis of thyroxine and inhibits the peripheral conversion of throxine to tri-iodothyronine. It is used in the treatment of hyperthyroidism. (From Martindale, The Extra Pharmacopeoia, 30th ed, p534) 6-Propyl-2-Thiouracil,6 Propyl 2 Thiouracil
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
D005260 Female Females
D006146 Guanidines A family of iminourea derivatives. The parent compound has been isolated from mushrooms, corn germ, rice hulls, mussels, earthworms, and turnip juice. Derivatives may have antiviral and antifungal properties.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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