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Filtering by: Creator Abdelgadir, Salaheldin Eltigani Non-Academic Affiliation Oregon State University. Graduate School

Effects of selenium and glutathione peroxidase on the biosynthesis of prostaglandin E₂ and F₂α by the ram vesicular gland

Creator:

Abdelgadir, Salaheldin Eltigani

Abstract:

This study was conducted to investigate the involvement of selenium and glutathione peroxidase in prostaglandin biosynthesis by the ram vesicular gland. Vesicular glands were collected from healthy intact rams covering a wide range of selenium nutrition and were analyzed for selenium concentrations, glutathione peroxidase activities and levels of prostaglandin E₂...

Resource Type:

Masters Thesis

Full Text:

Salaheldin Eltigani Abdelgadir A THESIS Submitted to Oregon State University in partial fulfillment of
Oxytocin synthesis and release by the bovine corpus luteum

Creator:

Abdelgadir, Salaheldin Eltigani

Abstract:

Four experiments were conducted to determine oxytocin concen tration of bovine luteal tissue at different stages of the estrous cycle and to study the effects of prostaglandins F₂α (PGF₂α), E₂ (PGE₂), luteinizing hormone (LH), cycloheximide, colchicine and cytochalasin B on oxytocin synthesis and release in vitro. In experiment 1, luteal...

Resource Type:

Dissertation

Full Text:

AN ABSTRACT OF THE THESIS OF Salaheldin Eltigani Abdelgadir for the degree of Doctor of Philosophy
Glutathione peroxidase and selenium distribution in semen and reproductive tissues of farm animals

Creator:

Alabi, Nathaniel Sigismund

Abstract:

This study was conducted to investigate the distribution of glutathione peroxidase (GSH-Px) and selenium in semen of the boar, bull, ram and stallion, and in the reproductive tissues of the boar, bull and ram. The effect of repeated noncryoprotective freeze-thawing on GSH-Px activity was also studied. Both hydrogen peroxide (H₂0₂)...

Resource Type:

Masters Thesis

Full Text:

Salaheldin Abdelgadir, my colleague and trusted friend, for his moral support. Finally, I wish to extend my