This study is first to investigate proteomic changes in sheep sperm induced by carbon ion radiation using two-dimensional electrophoresis (2-DE) analysis in the project of breeding a new variety of sheep. Differenti...This study is first to investigate proteomic changes in sheep sperm induced by carbon ion radiation using two-dimensional electrophoresis (2-DE) analysis in the project of breeding a new variety of sheep. Differential expression proteins were detected using the PDQuest 8.0 software after staining with Coomassie blue. Valid spots were then analyzed through liquid chromatography tandem mass spectrometry (LC-MS/MS). Among the 480 total protein spots displayed in 2-D gels, 6 specific protein spots were observed in sperm gels. A search against protein sequences in the National Center for Biotechnology Information databases (NCBI) indicated that differentially expressed proteins correspond to two proteins, identified to be enolase and transcription factor AP-2-alpha (TFAP-2c0. The two proteins were up-regulated in the irradiated sperm. To the best of our knowledge, this study is the first to identify proteomic changes induced by carbon ion radiation in sheep sperm. The analysis of differential expression protein may be useful in identifying new breeding markers in sheep reproduction and in clarifying the mechanisms involved in irradiation or space breeding.展开更多
The purpose of this study was to evaluate the effect of the addition of Origanum vulgare extract to in vitro capacitation sperm medium (IVCSM). This study investigated the antioxidant and antimicrobial effects of O. v...The purpose of this study was to evaluate the effect of the addition of Origanum vulgare extract to in vitro capacitation sperm medium (IVCSM). This study investigated the antioxidant and antimicrobial effects of O. vulgare extracts at different concentrations (0.3, 0.6, 1.2 μg/ml and 25.0, 50.0, 100.0 μg/ml, respectively) in IVCSM. Significant enhancements in semen quality parameters such as total motility, live and live capacitated sperm were found when O. vulgare extract was added as an antioxidant source (1.2 μg/ml). The treatment of spermatozoa with O. vulgare extract at the highest concentration (100 μg/ml) for 2 hrs without antibiotics improved sperm characteristics. In conclusion, incubation of sperm with O. vulgare extract in capacitation medium had beneficial effects on the characteristics of ram sperm.展开更多
基金supported by the Key Scientific Technology Research Projects of Gans u Province, China (1102NKDA022)the Major Program of Ministry of Agriculture to Cultivate New Varieties of Genetically ModifiedOrganisms of China (2008ZX08008-003)+1 种基金the National Basic Research Program of Chinathe National Natural Science Foundation of China (2010CB834202)
文摘This study is first to investigate proteomic changes in sheep sperm induced by carbon ion radiation using two-dimensional electrophoresis (2-DE) analysis in the project of breeding a new variety of sheep. Differential expression proteins were detected using the PDQuest 8.0 software after staining with Coomassie blue. Valid spots were then analyzed through liquid chromatography tandem mass spectrometry (LC-MS/MS). Among the 480 total protein spots displayed in 2-D gels, 6 specific protein spots were observed in sperm gels. A search against protein sequences in the National Center for Biotechnology Information databases (NCBI) indicated that differentially expressed proteins correspond to two proteins, identified to be enolase and transcription factor AP-2-alpha (TFAP-2c0. The two proteins were up-regulated in the irradiated sperm. To the best of our knowledge, this study is the first to identify proteomic changes induced by carbon ion radiation in sheep sperm. The analysis of differential expression protein may be useful in identifying new breeding markers in sheep reproduction and in clarifying the mechanisms involved in irradiation or space breeding.
文摘The purpose of this study was to evaluate the effect of the addition of Origanum vulgare extract to in vitro capacitation sperm medium (IVCSM). This study investigated the antioxidant and antimicrobial effects of O. vulgare extracts at different concentrations (0.3, 0.6, 1.2 μg/ml and 25.0, 50.0, 100.0 μg/ml, respectively) in IVCSM. Significant enhancements in semen quality parameters such as total motility, live and live capacitated sperm were found when O. vulgare extract was added as an antioxidant source (1.2 μg/ml). The treatment of spermatozoa with O. vulgare extract at the highest concentration (100 μg/ml) for 2 hrs without antibiotics improved sperm characteristics. In conclusion, incubation of sperm with O. vulgare extract in capacitation medium had beneficial effects on the characteristics of ram sperm.