Changes in pituitary prolactin reserve with sexual maturation
نویسندگان
چکیده
منابع مشابه
In vitro pituitary prolactin, growth hormone and follicle stimulating hormone secretion during sexual maturation of female rats primed with melatonin.
The influence of in vivo melatonin administration on in vitro pituitary follicle stimulating hormone (FSH), growth hormone (GH) and prolactin secretion, as well as the possible influence of dopamine (DA) were evaluated in prepubertal (31-day-old), pubertal (33-day-old) and adult female rats at diestrus phase of the sexual cycle. The in vitro pituitary hormone secretions were evaluated at basal ...
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A man with a prolactin secreting pituitary carcinoma was treated by surgery and radiotherapy. Persistent hyperprolactinaemia partially responded to oral bromocriptine for four years. Serum prolactin then rose considerably with rapid, invasive tumour recurrence. Cytotoxic chemotherapy halted tumour progression for twelve months before fatal spread throughout the brain. Failure to normalise serum...
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Correspondence to: Ioana Muntean, e-mail: [email protected] ABSTRACT. Hyperprolactinemia has different etiologic forms, among them, the prolactin-secreting pituitary tumors represent an important entity. In our study, were analyzed the clinical aspects, diagnostic procedures and therapeutical approach of 31 cases of prolactinomas (F/M ratio = 27/4) hospitalized in the Clinic of Endocrinol...
متن کامل[The properties of prolactin secretion in patients with prolactin secreting pituitary adenomas].
Plasma prolactin (PRL) responses to several exogenous agents are variable in patients with prolactinomas. In this study the factors determining the responsiveness to exogenous stimuli were investigated in 35 patients with prolactinomas. Among these patients, 14 patients were responder (greater than 150% increase of basal value) to TRH, sulpiride (DA D2-receptor blocker) and arginine, and remain...
متن کاملDopaminergic Inhibition of Prolactin Secretion in Patients with Prolactin-Secreting Pituitary Tumors
(6 male, 4 female) and 8 patients with hyperprolactinemia associated with pituitary tumors were given L-dopa, 0.5 g alone, or 0.1 g after a 24-h pretreatment with carbidopa, 50 mg every 6 h, which produces peripheral dopa decarboxylase inhibition. Similar degrees of PRL suppression were observed in normal subjects (basal plasma PRL 13+2 ng/ml) after L-dopa alone (48±+4%) and after L-dopa plus c...
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ژورنال
عنوان ژورنال: Okayama Igakkai Zasshi (Journal of Okayama Medical Association)
سال: 1989
ISSN: 0030-1558,1882-4528
DOI: 10.4044/joma1947.101.11-12_1063