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Biomedical subjects

T Barreca

Publications and source records attributed to T Barreca.

At least 91 records · Page 5Linked to original sources
PubMed1980

Evaluation of twenty-four-hour secretory patterns of growth hormone and insulin in patients with myotonic dystrophy.

Twenty-four-hour secretory patterns of GH and insulin were evaluated in seven patients with myotonic dystrophy. We found an impairment of sleep-related GH secretion and an increase of nocturnal serum insulin levels. There was no correlation between hormonal behavior and severity of disease. It is possible that the observed hormonal dysfunction is related to a multisystem disorder in myotonic dystrophy.

Adult↗
PubMed1980

Evaluation of anterior pituitary function in patients with posttraumatic diabetes insipidus.

Serum LH, FSH, TSH, PRL, GH, and cortisol were measured in 10 patients with posttraumatic diabetes insipidus both basally and after a combined insulin-induced hypoglycemia, LRH and TRH test. Two patients did not show hormonal abnormalities, while 8 patients had deficiencies of 1 or more hormones. The most frequent abnormality was GH deficiency (50%), followed by TSH (40%), ACTH (30%), FSH (30%0, and LH (20%). These results indicate that anterior pituitary dysfunction frequently accompanies posttraumatic diabetes insipidus.

Adolescent↗
PubMed1980

Evaluation of LH, FSH, TSH, Prl, and GH secretion in patients suffering from prostatic neoplasms.

The concentration of luteinizing hormone (LH), of follicle stimulating hormone (FSH), of thyroid stimulating hormone (TSH), of prolactin (Prl) and of growth hormone (GH) was evaluated, in basal conditions and during stimulation tests, in serum of 32 patients with benign prostatic hypertrophy (BPH), of 29 patients suffering from prostatic carcinoma and of a control group of similar age. Significant difference in pituitary Prl secretion was found between the prostatic patients and the control group.

Aged↗
PubMed1979

[Effects of somatostatin upon prolactin secretion both in normal subjects and in patients presenting pituitary adenoma (author's transl)].

In normal subjects somatostatin cannot modify the plasma levels of prolactin when they are in a normal range or when they are pharmacologically increased. In the case of pituitary adenoma (prolactinic or eosinophilic), the response of prolactin to somatostatin varies widely. In some patients there is a marked decrease of the prolactin levels while in others no modification is observed.

Acromegaly↗
PubMed1979

Increased serum prolactin pituitary reserve in patients with prostatic neoplasms.

Prolactin (PRL) pituitary reserve was measured in 8 patients with prostatic adenoma and 11 patients with prostatic carcinoma. The PRL reserve was significantly higher in these patients compared to an age-matched control group of 6 subjects. A possible role for PRL-inhibiting drugs in the management of oestrogen-resistant carcinomas of the prostate is suggested.

Aged↗
PubMed1978

Unchanged thyrotropin and prolactin responses to thyrotropin releasing hormone after indomethacin treatment.

Experimental effects of prostaglandin synthetase inhibitors have been considered in the literature as a clue to the possible interactions of prostaglandins with the hypothalamic releasing hormones at the pituitary level. Some results of the administration to man of these drugs are apparently in contrast with the in vivo and in vitro animal data. The present investigation deals with the comparison between the thyrotropin releasing hormone (TRH) effect on prolactin and thyrotropin when the hormone was administered intravenously at doses of 50, 100 and 200 microgram respectively to three groups of six men (aged 22 to 30 years), before and on the sixth day of indomethacin administration (50 mg orally at 6-hour intervals). No significant change in the releasing hormone effect was observed either in the case of prolactin, where TRH caused a consistently similar release of the hormone at every dose employed, or in the case of thyrotropin, where a dose-dependent releasing effect was obtained before and after indomethacin treatment.

Adult↗
PubMed1978

Sleep-wake differences in serum prolactin levels in children.

Sleep-wake differences in prolactin serum levels have been studied in 47 prepubertal children of both sexes, aged 1 to 12 years. Sampling has been made in each subject once during wake and once during sleep. The serum levels of prolactin were found to be higher during sleep than during wake (p greater than 0.01). When the children were divided into age groups, a statistically significant difference between wake and sleep was observed in all groups considered, including that with children aged 1 to 2 years. This indicates that the sleep connected rise of prolactin levels occurs very early in chidhood. No sex releated difference either in absolute hormone serum levels or in wake-sleep changes is apparent.

Age Factors↗