Zobrazeno 1 - 10
of 18
pro vyhledávání: '"I. Yu. Lebedeva"'
Effect of age on the secretory activity of different layers of preovulatory follicles in laying hens
Publikováno v:
Genetics and breeding of animals. :28-32
Age-related deterioration in female fertility is mainly associated with a decrease in the number and quality of ovarian follicles, which, in turn, leads to various endocrine disorders. In the present work, the steroidogenic activity of theca and gran
Publikováno v:
Cell and Tissue Biology. 13:219-227
The fertility of female mammals depends on the quality of oocytes, which decreases in the process of biological aging. We found an inhibitory effect of two related pituitary hormones (prolactin (PRL) and growth hormone (GH)) on destructive modificati
Publikováno v:
sel'skokhozyaistvennaya Biologiya. 53:1202-1211
Publikováno v:
Sel'skokhozyaistvennaya Biologiya. 51:238-246
Publikováno v:
Cell and Tissue Biology. 8:258-266
In the absence of activating stimuli, aging processes are initiated in matured mammalian oocytes, which negatively affect the quality of ova and their capacity for further development. On the model of the prolonged culture of bovine oocytes, the dyna
Publikováno v:
Russian Agricultural Sciences. 38:247-250
The character of metabolism in the precalving period is one of the factors determining the reproductive potential of dairy cattle. The purpose of the present investigation was a comparative analysis of the activity of a number of metabolic enzymes pa
Publikováno v:
Cell and Tissue Biology. 5:560-567
The mechanisms of prolactin signal transduction in generative and somatic cells of mammalian ovarian follicles are poorly understood. In this work, participation of tyrosine kinases and protein kinase C in mediation of the previously revealed modulat
Publikováno v:
Cell and Tissue Biology. 3:438-444
Cyclic AMP is one of the key regulators of mammalian meiosis. In the present work, realization pathways of the previously revealed modulating effect of prolactin (PRL) on the cAMP-dependent mechanism of meiosis regulation in bovine oocytes were studi
Autor:
A. N. Mormishev, Natalia A Zinovieva, G. N. Singina, Natalia A. Volkova, A. K. Golubev, I. Yu. Lebedeva
Publikováno v:
Cell and Tissue Biology. 2:472-480
Prolactin (PRL) is one of the pituitary hormones that participate in controlling mammalian folliculo-and oogenesis. In the present study, the combined action of PRL (50 ng/ml) and dibutyryl cAMP (dbcAMP, 1 mM) on oocyte maturation and the morphologic
Publikováno v:
Journal of Evolutionary Biochemistry and Physiology. 42:383-388
The dependence of somatotropin-binding activity of theca and granulosa tissues of hen preovulatory follicles on pH of incubation buffer was studied. A rise of [125I] somatotropin specific binding to theca tissue with decrease of pH from 6.3 to 5.0 wa