精子與卵子的融合,象徵著一個新生命的誕生。418Please respect copyright.PENANA3L3gbS6wFu418Please respect copyright.PENANA5GVguk1SYm
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(圖2)近來陸續有研究發現,精子的尾部有著名為Glycylation的結構,由至少三個名為Glycine的氨基酸組成。418Please respect copyright.PENANAa0OGwYwLvK418Please respect copyright.PENANAl4u3AGZ6Kf
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(圖3)尾部擁有Glycylation結構的精子,接近9成時間都會直行。418Please respect copyright.PENANAExQ9UHT1IT
而缺乏該結構的精子,則有接近8成的時間會原地打轉。418Please respect copyright.PENANAZBzj0SD7ry418Please respect copyright.PENANAXIzzuqhuyX
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(圖4)大概是高機率原地轉圈的關係,尾部缺乏Glycylation結構的精子,與卵子結合的機率將會大減。418Please respect copyright.PENANANtMsrOErKi418Please respect copyright.PENANAyWkZdHA2fD
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尾部缺乏Glycylation結構的精子,其蛋白質Dynein的內部組成結構亦有所不同。418Please respect copyright.PENANApEBlk5TVhl
這亦相信是導致精子原地轉圈的主要原因之一。418Please respect copyright.PENANAXBSyKfZgYE
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如何讓男士們的精子尾部結構保持合適數量的Glycylation結構,將有可能是解決不育的其中一道手段。418Please respect copyright.PENANAGjS5U3r4ff
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Ref1:https://science.sciencemag.org/content/371/6525/eabd4914418Please respect copyright.PENANA7Iw8XKpsGQ