精子與卵子的融合,象徵著一個新生命的誕生。443Please respect copyright.PENANA4iwW5zysmp443Please respect copyright.PENANAwjaOQNtInM
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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。443Please respect copyright.PENANARaHtnhf9VT443Please respect copyright.PENANA6sKs69YK3A
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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。443Please respect copyright.PENANAGe4Jc27fQ5
而缺乏該結構的精子,則有接近8成的時間會原地打轉。443Please respect copyright.PENANAn7U1IEunBx443Please respect copyright.PENANAAAnfPnqc1H
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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。443Please respect copyright.PENANA2m0DcBDE1C443Please respect copyright.PENANAMwc2a5B0Sq
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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。443Please respect copyright.PENANAQls9g2yqJL
這亦相信是導致精子原地轉圈的主要原因之一。443Please respect copyright.PENANA44OSK8kwVg
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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。443Please respect copyright.PENANAjpmGBBeBQq
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Ref1:https://science.sciencemag.org/content/371/6525/eabd4914443Please respect copyright.PENANAyvfcm8TZTh