Mehmet Melih Yılmaz , Sena Ardicli , Tugaycan Cimen , Burcu Ustuner
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引用次数: 0
Abstract
The aim of this study was to determine the freezability of ram semen with extenders containing mitoquinone or caffeic acid. Collected ram semen samples were pooled and divided into seven equal aliquots. Each aliquot was diluted with Tris-based extender according to control and antioxidant groups (Control, Mitoquinone (MitoQ) 100 nM, 150 nM, 200 nM; Caffeic Acid (CA) 50 µM, 100 µM, 150 µM). The post-thaw spermatological, antioxidant parameters and OGG1/ROMO1 gene expression and methylation were evaluated. It was determined that the CASA post-thaw motility of MitoQ200, CA100 and CA150 antioxidant groups were statistically higher than the control group (P < 0.05). The post-thaw plasma membrane integrity of MitoQ groups was compared with CA groups, CA100 group, which had the lowest plasma membrane integrity among the antioxidant groups. The post-thaw acrosome membrane damage of all the antioxidant groups were statistically lower than control group, except CA50 and CA100 groups (P < 0.05). For the post-thaw mitochondrial membrane potential, all groups except the CA50 group were determined to be superior to the control group (P < 0.05). No statistical difference was observed among all groups including control group in terms of post-thaw DNA fragmentation, MDA and TAC values. MitoQ significantly altered the expression of the OGG1 genes, an effect mediated through DNA methylation (P < 0.05). Furthermore, caffeic acid altered the ROMO1 gene expression (P < 0.05). Based on the spermatological parameters and gene expression and methylation levels obtained in the current study, it was determined that mitoquinone 200 nM and caffeic acid 150 µM doses had a positive effect on the freezability of ram semen.
期刊介绍:
Animal Reproduction Science publishes results from studies relating to reproduction and fertility in animals. This includes both fundamental research and applied studies, including management practices that increase our understanding of the biology and manipulation of reproduction. Manuscripts should go into depth in the mechanisms involved in the research reported, rather than a give a mere description of findings. The focus is on animals that are useful to humans including food- and fibre-producing; companion/recreational; captive; and endangered species including zoo animals, but excluding laboratory animals unless the results of the study provide new information that impacts the basic understanding of the biology or manipulation of reproduction.
The journal''s scope includes the study of reproductive physiology and endocrinology, reproductive cycles, natural and artificial control of reproduction, preservation and use of gametes and embryos, pregnancy and parturition, infertility and sterility, diagnostic and therapeutic techniques.
The Editorial Board of Animal Reproduction Science has decided not to publish papers in which there is an exclusive examination of the in vitro development of oocytes and embryos; however, there will be consideration of papers that include in vitro studies where the source of the oocytes and/or development of the embryos beyond the blastocyst stage is part of the experimental design.