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Biomedical subjects

J Torres

Publications and source records attributed to J Torres.

At least 235 records · Page 13Linked to original sources

How do oocytes disappear?

It has been study using transmission and scanner electron microscopy the mean procedures of dessaparence of the oocytes. On described three methods: 1. The necrosis of the oocytes. 2. The autolysis and fagocitosis by granulosa cells. 3. The migration of those to the superphicie and fall into the peritoneal cavity. Using the scanner electron microscopy in ovaries of fetus and newborn it seems the latest method to bee the most important during the intrauterine life. After the birth, this last phenomenon seems to disappear.

Autolysis↗

The plasmatic 11-hydroxy-corticosteroid response in the human to a synthetic octadecapeptide corticotrophin (C-41795-Ba).

The adrenal response as measured by the plasmatic changes in 11-hydroxy-corticosteroid (11-OHCS) concentration following the administration of a synthetic octadecapeptide (C-41795-Ba) was compared in 17 normal young males with that obtained with the commercially available tetracosactrin. C-41795-Ba polypeptide shows a higher potency than tetracosactrin. Its effects are longer lasting when administered intravenously which indicates a significant local inactivation of the polypeptide.

11-Hydroxycorticosteroids↗

Adrenal response to tolbutamide-induced hypoglycemia in high altitude dwellers.

Adrenal response to tolbutamide-induced hypoglycemia was studied in 23 normal men born and living at high altitude (Morococha, Perú, 4,540 m) and compared to 23 men born and living near sea level. Fasting blood sugar was significantly lower in the high altitude dwellers (HAD) and this difference persisted throughout the test period. The blood glucose decrement at 30 min was significantly less in the HAD. Plasma cortisol response was significantly higher at 30 and 60 min in the HAD. Peak cortisol level occurred earlier in the HAD than in men living at sea level. The absolute cortisol increment at 30 min was significantly greater in the HAD.

Adrenal Glands↗