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Biomedical subjects

V F Saldanha

Publications and source records attributed to V F Saldanha.

7 recordsLinked to original sources
PubMed1973

Conversion of thyroxine to triiodothyronine by cultured human cells.

Human liver and kidney cells convert 6 to 10 percent of added thyroxine to triiodothyronine in vitro at 37 degrees C. This extent of conversion is ten times greater than that in control studies with killed cells. Conversion is evident within 10 minutes and appears to be maximal within 1 hour. Greater net triiodothyronine formation results if greater amounts of exogenous thyroxine are added to the system, with no plateau evident even at very high thyroxine concentrations. The addition of high concentrations of nonradioactive triiodothyronine resulted in no evident inhibition of the conversion.

Biotransformation↗
PubMed1970

Adrenal function in hypothyroidism.

In ten patients with hypothyroidism the adrenal response to stimulation with tetracosactrin was found to be normal, and to be unchanged after they had been treated with thyroxine. Though the response to insulin hypoglycaemia was less in the hypothyroid phase, it was never outside the normal limits. Hence it seems unlikely that the adrenal response to stress is appreciably lowered in hypothyroidism.

Adolescent↗