精子與卵子的融合,象徵著一個新生命的誕生。461Please respect copyright.PENANAqpJCOKNyQN461Please respect copyright.PENANAIxv0YJrBlu
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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。461Please respect copyright.PENANAU6L51DeSLO461Please respect copyright.PENANAv1ZJLsdD4u
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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。461Please respect copyright.PENANA4IPudFY1H6
而缺乏該結構的精子,則有接近8成的時間會原地打轉。461Please respect copyright.PENANAt27qd379Vx461Please respect copyright.PENANAKB5bUA35TX
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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。461Please respect copyright.PENANAaT9oKo7DRR461Please respect copyright.PENANA9T4xQSldoW
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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。461Please respect copyright.PENANAzT3sKaVJ8D
這亦相信是導致精子原地轉圈的主要原因之一。461Please respect copyright.PENANAKM0Q15G2BU
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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。461Please respect copyright.PENANAiuAbbGdfd3
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Ref1:https://science.sciencemag.org/content/371/6525/eabd4914461Please respect copyright.PENANAmbNDMpF6hl