Título: Fluorometric microdetermination of estrogens in the plasma of non-pregnant women with breast cancer
Autores: Kalomiris, Constantinos
Fecha: Browne, J.
Publicador: McGill University - MCGILL
Fuente:
Tipo: Electronic Thesis or Dissertation
Tema: Experimental Medicine.
Descripción: Plasma levels of three estrogens, namely, estrone, estradiol and estriol in 32 patients with breast cancer and 8 normal subjects were determined fluorometrically by using a method developed by Brown as modified by Roy. The results obtained indicate that there is no significant difference between the mean plasma levels of estrone and estradiol in the two groups. The plasma estriol, however, is considerably higher in the breast cancer patients. This elevated estriol suggests an increased activity in estrogen metabolism. An attempt was made to determine the site of this increased activity in three patients with breast cancer by measuring the estrogen level in the peripheral plasma and in mammary vein plasma obtained during mastectomy. Comparison of the values obtained for each patient suggests that the mammary tumor is not the site of increased metabolic activity. When the mean plasma estrogen levels of breast cancer patients were compared to those found in patients with metastatic cancer (Table X1), no significant difference was found between the two groups. The foregoing work indicates that it is not justifiable to conclude that the metabolic disorder of estrogens noted in patients with breast cancer is peculiar to this specific disease until sufficient knowledge exists regarding estrogen metabolism in other diseases.
Idioma: en