Publications by authors named "Z DICKMANN"

This report addresses the following question: Can ovulation be blocked through a combined action of two drugs, which individually have no effect on ovulation. Ovulation blockade in hamsters was achieved through synergism of two drugs that individually had no effect on ovulation. Treatments were given at 18:00 h on pro-estrus.

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This is a theoretical paper. Climacteric in women has two basic consequences: (i) Sterility, which is interpreted here as a positive feature, because it protects the older woman from the hardships of pregnancy. (ii) Hormonal deficiency, which is interpreted here as a negative feature, because it leads to deleterious changes in various parts of the body.

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The activities of phosphofructokinase, pyruvate kinase, citrate synthase and creatine kinase were determined in blastocysts from rabbits at 144 h post coitum and in similar blastocysts cultured for 24 h with or without oestradiol-17beta (1 microgrm/ml). There was a significant increase in all the enzymes during the 24-h culture period but oestradiol had no effect.

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