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The <jats:styled-content style=\"fixed-case\">DNA<\/jats:styled-content> fragmentation was assayed with the use of <jats:styled-content style=\"fixed-case\">TUNEL<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There were significant differences in the level of P34H protein expression, the percentage of the P34H\u2010positive rate, the activity of <jats:styled-content style=\"fixed-case\">HYD<\/jats:styled-content>, and the percentage of <jats:styled-content style=\"fixed-case\">DNA<\/jats:styled-content> fragmentation between each infertile group and the control (<jats:italic>P<\/jats:italic>&lt;.05). The relation among the P34H protein expression, the percentage of P34H\u2010positive rate and <jats:styled-content style=\"fixed-case\">HYD<\/jats:styled-content>\u2010positive rate, <jats:styled-content style=\"fixed-case\">HYD<\/jats:styled-content>\u2010activity intensity had a significant positive correlation; Both the P34H protein expression and the percentage of P34H\u2010positive rate were inversely correlated with the percentages of sperm <jats:styled-content style=\"fixed-case\">DNA<\/jats:styled-content> fragmentation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Ureaplasma urealyticum infection may affect the level of P34H protein expression, the percentage of the P34H\u2010positive rate, the activity of <jats:styled-content style=\"fixed-case\">HYD<\/jats:styled-content>, and <jats:styled-content style=\"fixed-case\">DNA<\/jats:styled-content> fragmentation that influence fertility.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aji.12600","type":"journal-article","created":{"date-parts":[[2016,12,25]],"date-time":"2016-12-25T05:40:22Z","timestamp":1482644422000},"source":"Crossref","is-referenced-by-count":16,"title":["The effect of Ureaplasma urealyticum on the level of P34H expression, the activity of hyaluronidase, and <scp>DNA<\/scp> fragmentation in human spermatozoa"],"prefix":"10.1111","volume":"77","author":[{"given":"Xiao\u2010ping","family":"Ma","sequence":"first","affiliation":[{"name":"Department of Histology and Embryology Guizhou Medical university  Guizhou China"},{"name":"Department of Histology and Embryology Zunyi Medical and Pharmaceutical College  Guizhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao\u2010qin","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Histology and Embryology Zunyi Medical and Pharmaceutical College  Guizhou 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