精子與卵子的融合,象徵著一個新生命的誕生。454Please respect copyright.PENANA9pVimKPXzQ454Please respect copyright.PENANAWqsmyoKO3G
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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。454Please respect copyright.PENANASeeiNndWuR454Please respect copyright.PENANAtMefCiqL91
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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。454Please respect copyright.PENANAWvzJN1jh1a
而缺乏該結構的精子,則有接近8成的時間會原地打轉。454Please respect copyright.PENANATgQhmq85zN454Please respect copyright.PENANAmkMsl2cliS
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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。454Please respect copyright.PENANArGjjwq4sCC454Please respect copyright.PENANAQS0OCk8tf1
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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。454Please respect copyright.PENANAM0sm6BBrIM
這亦相信是導致精子原地轉圈的主要原因之一。454Please respect copyright.PENANAjKfrk93OLb
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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。454Please respect copyright.PENANAq3Z3QvuENN
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Ref1:https://science.sciencemag.org/content/371/6525/eabd4914454Please respect copyright.PENANA20u8ho8d5G