Hannu E. Isotalo

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Concentrations of cytosol estrogen (ERC) and cytosol progestin (PRC) receptors were assayed in malignant tissue specimens of 230 patients with endometrial cancer, and those of nuclear estrogen and nuclear progestin receptors, and 17 beta-hydroxysteroid dehydrogenase activities in about 100 specimens. Endometrial cancer was at an early stage in 205 and(More)
A synthetic progestin, 16 alpha-ethyl-21-hydroxy-19-nor-4-pregnene-3,20-dione (ORG 2058), was utilized to measure progesterone receptors from the rabbit uterus. This steroid has a high affinity for both cytosol and nuclear receptors, with KD values of 1.2 nM (at 0--4 degrees C) and 2.3 nM (at 15 degrees C), respectively. Administration of estradiol-17 beta(More)
The dependence of the d.c. conductivity on the hydration and temperature (293-343 K) for synthetic DOPA-melanin polymer is presented. The hydration state of the melanin has been changed by varying the humidity conditions around the sample. It has been shown, that in the range of relative humidity values (0-100%), changes in the hydration state of melanin(More)
The plasminogen activator (PA) activity and oestrogen and progestin receptor concentrations were determined in normal, benign and malignant tissues of human breast and ovary. The geometric mean of PA activity was significantly higher (p less than 0.05) in malignant than in normal breast tissue specimens. PA activity was also higher in benign breast tumours(More)
Cytosol estrogen (ERc) and progestin (PRc) receptors were measured in 135 endometrial carcinoma specimens from 127 patients, and in 84 ovarian carcinoma specimens from 84 patients before any treatment. In endometrial carcinoma, early clinical stages (I and II) were more often receptor-rich (ERc and PRc greater than or equal to 30 fmol/mg cytosol protein)(More)
Concentrations of cytosol estrogen (ERc) and progestin (PRc) receptors and the activities of 17 beta-hydroxysteroid dehydrogenase (17-HSD) were measured in 80 untreated and 23 danazol-treated endometriotic tissue specimens. The results were compared with those obtained from endometrium specimens prior to or following danazol or medroxyprogesterone acetate(More)
We measured concentrations of cytosol and nuclear estrogen, as well as progestin receptors and activities of 17 beta-hydroxysteroid dehydrogenase (17-HSD), and examined histopathology and ultrastructure of endometrial carcinoma specimens taken before and after one-week danazol (200 mg, 3 times daily) or medroxyprogesterone acetate (MPA, 100 mg daily)(More)