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男人天天“发” 精子品质好

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男人天天来“一发”,有助改善精子的品质!澳洲最新研究指出,男性每天射精,连续七天后,精子内去氧核糖核酸(DNA)受损指数会大为降低,即品质改善,有助让卵子受孕。

澳洲不孕症治疗中心“雪梨试管婴儿胚胎植入机构”(Sydney IVF)专家葛令宁表示,他邀请一一八位精子品质被列为“受损”的男士参加实验。实验前,受测者精子受损的“DNA片段化指数”(DNA fragmentation index”平均为34%,意味精子品质“很差”。

葛令宁请受测男士们每天射精,历时七日,期间不必服食任何药物,也不必更改生活方式。七天后再检查受测者精子,发现精子DNA片段化指数降到26%,品质已可列入“还好”等级。

葛令宁表示,五分之四受测男士的精子品质大为改善,有很多人甚至跃升到“良好”之列。精子数量方面,虽然七天内由一亿八千万只降至七千万只,但仍在正常、可令卵子受孕范围,精子也变得较活跃。

葛令宁的理论主张,精子停留在睾丸愈久,DNA片断化指数会累积升高,温暖的环境也让精子变得较迟钝。他怀疑精子停留在输精管愈久,接触到诸如自由基这种活性氧分子,让DNA遭破坏的现象更严重。精子没毛病的男性如果天天来一发,能不能得到相同好处,犹待进一步实验证实,葛令宁认为,结果很可能也是如此。


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