PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Pituitary Function Tests”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 181 records · Page 10Linked to original sources
PubMed1983

Thyroid status in patients with chronic renal failure.

Serum thyroid hormone concentrations have been measured in 21 patients with chronic renal failure, treated conservatively and compared with values from 19 control subjects. Many patients had serum total T3 and T4 concentrations below the reference ranges. The concentrations of free T4 and free T3 and the free thyroxine index were significantly lower in patients with abnormal total concentrations of the thyroid hormones than in the controls. Both the free and the total concentrations of T4 correlated inversely with the degree of renal failure. The concentration of thyroxine binding globulin (TBG), fell within the reference range in each of the patients, but was significantly lower in the patient group when compared with the controls. These TBG concentrations, however, were not sufficiently decreased to explain the low total thyroid hormone concentrations found in the patients. The affinity of TBG for T4 and T3 in the patient and control groups was not significantly different. The TSH response to TRH was diminished in many of the patients, but the measurement of other pituitary hormones indicated that pituitary function was normal in these patients. The possible mechanisms responsible for the changes observed in thyroid and pituitary hormones are discussed.

Adolescent↗
PubMedDate not supplied

[Indices of the pituitary-thyroid system in residents of cities with various fluorine concentrations in drinking water].

The thyroid 131I consumption, the hypophyseal thyrotropic hormone content and the blood serum total thyroxin and triiodothyronine concentrations were studied in equal groups of healthy humans and donors, living in two cities with an enhanced or decreased fluorine content in drinking water. Iodine deficiency and adaptive amplification of the hypophyseal-thyroid system, not ensuring an absolute compensation, were found in the citizens, using drinking water with an increased fluorine content, accompanied by an augmented incidence of functional disturbance, which structure remained relatively unchanged.

Drinking↗
PubMed1975

Clinical uses of thyrotropin-releasing hormone.

Knowledge about the physiology of the endocrine glands has been expanded in the past several years. It now appears that the secretion of the various pituitary hormones is conditioned by specific releasing hormones secreted in the hypothalamus. Thyrotropin-releasing hormone conditions the pituitary to release thyroid-stimulating hormone when the serum thyroid hormone concentration falls below a certain level. A radioimmunoassay for TSH helps the physician to distinguish the different etiologies of hypothyroidism, to confirm the diagnosis of "euthyroid" Graves' disease and to evaluate pituitary function.

Humans↗