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Ömer Varişli
Researcher at Harran University
Publications - 23
Citations - 633
Ömer Varişli is an academic researcher from Harran University. The author has contributed to research in topics: Sperm & Sperm motility. The author has an hindex of 9, co-authored 23 publications receiving 565 citations. Previous affiliations of Ömer Varişli include Ankara University & University of Missouri.
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Journal ArticleDOI
The influence of trehalose, taurine, cysteamine and hyaluronan on ram semen Microscopic and oxidative stress parameters after freeze-thawing process.
TL;DR: Catalase (CAT) activities were higher in the group that was applied 25mM taurine as an antioxidant, than in all of the other groups in this study, and the addition of antioxidants did not cause significant differences in levels of malondialdehyde (MDA), glutathione (GSH), and glutATHione peroxidase (G SH-Px), after thawing, when compared to groups with no additives.
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Motility and acrosomal integrity comparisons between electro-ejaculated and epididymal ram sperm after exposure to a range of anisosmotic solutions, cryoprotective agents and low temperatures
TL;DR: It is suggested that while epididymal ram sperm is extremely resilient to various cryobiologically relevant stress conditions, ejaculated ram sperm demonstrate greater sensitivity to such stressors.
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Various Physical Stress Factors on Rat Sperm Motility, Integrity of Acrosome, and Plasma Membrane
TL;DR: It is suggested that rat sperm have unique properties that need to be considered during centrifugation, Percoll gradient separation, and pipetting procedures.
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Effects of nonylphenol on motility and subcellular elements of epididymal rat sperm.
TL;DR: Results indicate that major mechanism of action of NP on rat sperm is by adversely affecting their acrosomal integrity, however, NP-induced impaired sperm motility, decreased mitochondrial membrane potential also likely to play an important role in destruction of sperm function.
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Comparison of cryoprotective effects of iodixanol, trehalose and cysteamine on ram semen.
Ümüt Cirit,Haydar Bagis,Kamber Demir,Cansu Agca,Serhat Pabuccuoglu,Ömer Varişli,Charlotte Clifford-Rathert,Yuksel Agca +7 more
TL;DR: It is demonstrated that the supplementation of iodixanol increases the cryosurvival of EE ram semen in a dose-dependent manner and protected post-thaw progressive motility, membrane integrity, acrosomal integrity and morphological damages.