Leobardo Calzada Sánchez

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The content of receptors to estradiol (ER) and progesterone (PgR) was studied in hormone-dependent tumours from pre- and postmenopausal patients with an infiltrating ductal type of mammary cancer in clinical stage III. The receptors concentration was correlated with the response endocrine treatment. (ER) and (PgR) demonstrated values in the ranges 11-275(More)
BACKGROUND -Na(+)-K+ ATPase is a useful marker which determines the origin of breast cancer cells. OBJECTIVE -Na(+)-K+ ATPase activity, as well as viability of plasma membrane vesicles isolated from breast carcinoma tissues were demonstrated by histochemical detection. PATIENTS AND METHOD Breast carcinoma tissue samples of patients who attended(More)
The concentration of receptor to estradiol (E-R) progesterone (Pg-R) and dexamethasone (G-R) was studied, by the dextran coated charcoal method in the cytosol of the mammary gland tissue from patients with infiltrating ductal carcinoma. The study was done in one hundred cases. 45% of these patients were postmenopausic and 55% premenopausic, with average(More)
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