科普專欄–薯不揀單 - 三十秒科學–做運動能增強身體免疫力？

骨髓(Bone Marrow)是不少幹細胞的聚居地，而紅血球、白血球、血小板等都是從骨髓裡頭的幹細胞而來。1103Please respect copyright.ＰＥＮＡＮＡj3pt3J2KV4
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（圖2）老鼠在跑動滾輪運動四星期後，其頭腦骨髓裡專門負責製造免疫細胞的幹細胞數量並沒有明顯改變。1103Please respect copyright.ＰＥＮＡＮＡbhXa0VpNfA
而在運動時候所用到的腳骨內，專門負責製造免疫細胞的幹細胞數量則有所增加。1103Please respect copyright.ＰＥＮＡＮＡfDqyIZ55Ux
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（圖3）研究發現（Ref1)，骨髓裡某類型的幹細胞表面有著名為Pizeo1的蛋白質。1103Please respect copyright.ＰＥＮＡＮＡkVLq0S1Jrq
當它受到運動等的物理刺激後，便會催動自身幹細胞演變成為骨細胞，同時亦會釋放物質，誘導其他幹細胞演變成為與免疫系統有關的細胞。1103Please respect copyright.ＰＥＮＡＮＡSuT0HXd81A
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缺乏Pizeo1蛋白質的老鼠當受到細菌感染的時候，所產生的免疫系統細胞數量亦明顯比擁有Pizeo1蛋白質的老鼠為少。1103Please respect copyright.ＰＥＮＡＮＡX85F5pY72n
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而除運動外，歲數亦會影響與免疫系統有關的幹細胞數量，18個月大的老鼠其數量明顯少於2個月大的老鼠。1103Please respect copyright.ＰＥＮＡＮＡL51dndo4Ef
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若人類亦是採用相同機制的話，這或許是其中一道解釋運動能提升身體免疫力的理據。1103Please respect copyright.ＰＥＮＡＮＡkxPbtYOZbs
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。1103Please respect copyright.ＰＥＮＡＮＡX0tDGbpYNB
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。1103Please respect copyright.ＰＥＮＡＮＡYTTQzLLOa9
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1103Please respect copyright.ＰＥＮＡＮＡGCwggK0Q4k
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。1103Please respect copyright.ＰＥＮＡＮＡcOSf9I1uTP
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Ref1:https://www.nature.com/articles/s41586-021-03298-51103Please respect copyright.ＰＥＮＡＮＡflbEFzagvf

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