[Ethinyl estradiol 3-cyclopentyl ether in single doses in the treatment of the climateric].
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56 healthy mothers were treated orally with an oestrogen (3 mg ethinyloestradiol-sulfonat) for inhibition of lactation. We found no effect on milk constituents (12 parameters). These results are discussed.
The inhibition of lactation by the depot oestrogen aethinyloestradiolsulfonate was accompanied by a delayed drop of the puerperal leukocytosis. Values of heparinocytes and Basophil-Age-Indices (BAI) were not significantly influenced. The reaction of the heparinocytes system is different in increasing classes of age. By depotoestrogens in the puerperium the princip of this reaction is not changed. Results don't support the hypothesis of influence of oestrogens upon puerperal and hormonal contraception risks of thromboembolism.
The purpose of the study was to establish the optimal combinations of ethynilestradiol and norethysterone acetate exhibiting a high contraceptive activity. It was shown that the ratio of 1:20 (ethynilestradiol 0.04 mg/kg and norethysterone acetate 0.8 mg/kg) is characterized by a high contraceptive efficacy. The inhibitory effect on the incretion of lutropin and follitropin leading to the change of the process of oogenesis and gravidary reorganization of the endometrium underlies probably the mechanism of action.
The ultrastructure of endometrium was investigated after oral application of 1 or 3 mg of the new depot oestrogen etinyloestradiolsulfonate by means of long time observation with biopsies on postmenopause women. Details of this experimental proliferation was described. The highest functional activity in the endometrial gland and stromal cells was found 3 weeks after intake. There was no difference between ultrastructure following exogenous and endogenous oestrogen action. Degenerative changes within mitochondria were observed earlier than the regression in light microscopical picture.
Ethynyl-estradiol was shown to decrease the rate of biosynthesis of saturated, mono-, di-, tri- and tetraenic fatty acids in liver tissue and to increase the esterification of the newly synthesized fatty acids into triglycerides and phospholipids. The most distinct activation of esterification was found, if newly synthesized saturated fatty acids changed to triglycerides and tetraenic acids--into phospholipids. Ethynyl-estradiol stimulated also in liver tissue the esterification of exogenous saturated and unsaturated fatty acids into triglycerides and phospholipids, while relative esterification of unsaturated fatty acids into phospholipids tended to increase. The data obtained suggest that stimulation of endo- and exogenous fatty acids esterification into triglycerides and phospholipids of liver tissue may be important in pathogenesis of estrogen-induced hypertriglyceridemia.
Ethinylestradiol sulphate (J 96) is a depot estrogen which in a dosage of 2 mg per week has clearly antigonadotropic effects and evokes a suppression of the free testosterone in bilaterally orchiectomized patients with carcinoma of the prostate. The good compatibility in oral application and the possibility for the controlled intake recommend its use for the long-term therapy of the carcinoma of the prostate.
Norethisterone samples are often contaminated by estrogen traces which can be measured by mass spectrometry and which invest the progestative with estrogenic properties in the Allen and Doisy test. Therefore, one had better, in pharmacodynamic experimenting, use samples that have been purified by chromatography or that are pure out of synthesis. However, one will not forget these are not without some estrogenicity, a fact which seems linked to the very nature of the norethisterone molecule.
Ethinylestradiol sulfonate is an orally applicable, potent depot estrogen with steroid structure. With a dosage of 2 mg per week it shows a distinct antigonadotropic and antiandrogenic effect. Its suitability for the hormone therapy of the carcinoma of the prostate is clinically and cytologically confirmed. It seldom has undesirable side effects. The oral application necessary only once a week guarantees a continuous supply of active substances with a good compliance by the patients.
An intravenous glucose tolerance test (i.v.GTT) was done before and after 6 months of using a sequential-type oral contraceptive in form of a weekly pill containing 0,6 mg ethinylestradiol-sulfonate (EES) soft gelatin capsules and 10 mg norethisterone acetate (NEA). 17 fertile, eumetabolic women are examined . There was no change neither average fasting blood glucose nor glucose assimilation after intake of ethinylestradiol. Basal as well as reactive insulin values increased by longer period of intake.
Combined administration of TE & EE for 72 days inhibited spermatogenesis. Testicular weight along with germinal height and tubular diameter decreased. Pachytene spermatocytes started becoming pycnotic and less in number by 24 days treatment. Almost no spermatozoa were seen in the lumen by 36 days and very few secondary spermatocytes and spermatids by 60 days. Marked disorganisation and desquamation was observed by the end of treatment. Leydig cells were also atrophied. Increase in swollen cell bodies, vacuolization, karyiolysis, pycnosis and cytolysis were observed after 72 days of treatment. Almost full recovery after 30 days of cessation of treatment was noticed.