The study, in BJU International, also found that smokers had a larger percentage of nonintact acrosomes, the part of the head of the sperm that releases enzymes that allow the sperm to penetrate the ovum’s shell. And the researchers discovered alterations in the proteins in smokers’ seminal plasma that might impair fertilization.
这份发表在《英国国际泌尿学期刊》(BJU international)上的研究报告还显示,吸烟者精子顶体——位于精子头部,会释放让精子穿透卵子外壳的酶——的完整率也更低一些。此外,研究人员发现,吸烟者精浆中的蛋白质出现了可能会影响受精的变化。
“All these effects were found in smokers,” said the senior author, Ricardo Pimenta Bertolla of the São Paulo Federal University. The message, he said, is straightforward: Smoking alters a man’s capacity to produce sperm that can successfully fertilize an egg.
“我们在吸烟者身上发现了所有这些后果,” 研究报告的资深作者、圣保罗联邦大学(São Paulo Federal University)的里卡多·皮门塔·贝尔托拉(Ricardo Pimenta Bertolla) 表示。他说,很明显:吸烟会损害男性排出那些能让卵子成功受精的精子的能力。
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