Andrzej Sechman

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The aim of this study was to examine the in vivo effect of growth hormone (GH) on cell proliferation and apoptosis and on the gene expression of selected proteins in the chicken oviduct before sexual maturity (first oviposition). Ten-week-old Hy-Line Brown chickens were injected three times a week with 200 μg · kg-1 body weight of recombinant chicken GH(More)
  • Agnieszka K Grzegorzewska, Andrzej Sechman, Helena E Paczoska-Eliasiewicz, Janusz Rząsa
  • 2009
SUMMARY In avian species, synthesis of sex steroids by embryonic gonads is regulated by luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In order to elucidate the role of the two gonadotropins in gonadal axis development during the second half of chicken embryogenesis, pituitary expression of LH β subunit (LHβ) and FSH β subunit (FSHβ) mRNAs(More)
The article summarizes results of studies concerning: 1/ qualitative evaluation of pig nuclear donor cells to somatic cell cloning, 2/ developmental potency of sheep somatic cells to create chimera, 3/ efficient production of chicken chimera. The quality of nuclear donor cells is one of the most important factors to determine the efficiency of somatic cell(More)
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