精子與卵子的融合,象徵著一個新生命的誕生。261Please respect copyright.PENANAoJvfdPnU3U261Please respect copyright.PENANAMLfAkGOte3
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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。261Please respect copyright.PENANAmgjDXc8KD9261Please respect copyright.PENANAGn2xZov8xP
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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。261Please respect copyright.PENANAlpMbxjVENi
而缺乏該結構的精子,則有接近8成的時間會原地打轉。261Please respect copyright.PENANA8yaBHJ1ina261Please respect copyright.PENANABgh6GEhX6n
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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。261Please respect copyright.PENANAqeSKliLnt9261Please respect copyright.PENANAljvXfXTP5G
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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。261Please respect copyright.PENANAWPvJW6aDxi
這亦相信是導致精子原地轉圈的主要原因之一。261Please respect copyright.PENANAO8VrHXfORT
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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。261Please respect copyright.PENANAu1I4EVj1z7
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Ref1:https://science.sciencemag.org/content/371/6525/eabd4914261Please respect copyright.PENANAyha0sL3tDD