RESUMEN
This paper deals with beta-endorphin determination in 20 autopsy specimens of human fetal and neonatal pancreas, as well as in the placental tissue specimens of the same fetoplacental units, by means of radioimmunoassay (RIA-Nichols Institute). Peripheral blood samples of 10 healthy non-gravids were taken as controls. Our results present a marked increase of beta-endorphin levels with the progression of gestation, reaching a peak of 3960 pg/g at term. The data obtained indicate that beta-endorphin plays an important role in pregnancy and delivery regulation.
Asunto(s)
Feto/fisiología , Páncreas/química , Embarazo/fisiología , betaendorfina/análisis , betaendorfina/fisiología , Femenino , Humanos , Páncreas/embriología , RadioinmunoensayoRESUMEN
The possible influence of both beta-endorphin and insulin secretion on diabetes development in pregnant women was studied by means of radioimmunoassay technique (RIA-Nichols Institute). The study was carried out by determination of beta endorphins in peripheral blood samples of 28 pregnant women with gestational diabetes. They consisted of two subgroups: 14 women with insulin independence, and 14 with insulin-dependent disease. Beta endorphin increase was found in both groups, according to the progression of gestation, and the rise was significantly higher in the insulin-dependent group. At the same time, insulin application caused a marked growth of beta-endorphins in insulin-dependent group. Beta-endorphins, inhibiting insulin secretion, can influence gestational diabetes development.