往不同動物例如老鼠及線蟲注射治療糖尿病的藥物(Metformin)後,壽命均會有顯著的增長。696Please respect copyright.PENANAalvhTxqADw696Please respect copyright.PENANAqYwbDPZejP
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有研究利用現成資料庫作對比,發現服用Metformin的糖尿病人歲數比沒有服用Metformin的健康人士為長(Ref1),亦有臨床研究嘗試為14名70歲的健康老人家注射為期6星期的Metformin,藉觀察體內的轉變以作抗衰老藥的研究基礎(Ref2)。696Please respect copyright.PENANARiPecrG2Zk
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(圖2)從圖中可見,往年輕線蟲注射Metformin的話,牠們的生存日子便會增長。696Please respect copyright.PENANAxakmlz3aIZ696Please respect copyright.PENANAP6TQpEo1S7
696Please respect copyright.PENANAkdgJrMB8bE
(圖3)但是,與年輕線蟲相反,往年老的線蟲注射Metformin的話,牠們的生存日子不但沒有增加,反而會減少。696Please respect copyright.PENANAV93hI5hXeb696Please respect copyright.PENANA6gDLcCvwRR
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(圖4)經過一系列的實驗,科學家認為Metformin能夠驅使年輕線蟲延壽的其中一個原因,是與粒線體的整體功用有關(Ref3)。696Please respect copyright.PENANAjKOdvn0wKo696Please respect copyright.PENANAsDn2J9UFml
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其中,Metformin為年輕線蟲的新陳代謝作出轉變,包括增加碳水化合物的分解,減低脂肪的含量等,但年老的線蟲卻沒能夠觸發同樣的效果,反而更會因新陳代謝機制的不良負荷而增加死亡率。696Please respect copyright.PENANA5V8duWVYot
696Please respect copyright.PENANAnin6VOv8Rn
文中的科學家亦就此作出質疑,既然Metformin只能使年輕線蟲而非年老線蟲延壽,那又究竟是否值得「魯莽」地對健康老人家進行Metformin的延壽研究。696Please respect copyright.PENANAaVNwyDLO9L
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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。696Please respect copyright.PENANAPDYB7XUFOv
696Please respect copyright.PENANApF6e9cGAh2
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc696Please respect copyright.PENANAOOgKanTCbb
696Please respect copyright.PENANAxrPPEwTbM1
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。696Please respect copyright.PENANAHCzFJrEEn7
696Please respect copyright.PENANA6jdFqKm0uK
Link:696Please respect copyright.PENANAdCyhzvRUx0
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio696Please respect copyright.PENANAFyyVDE6628
696Please respect copyright.PENANA91ru0itWqB
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。696Please respect copyright.PENANASDJw5VHx1S
696Please respect copyright.PENANAnkOz4Qaj4I
https://www.instagram.com/potatopigtongue/696Please respect copyright.PENANAF7GlPRDBLy
696Please respect copyright.PENANA0A0vmuGk9J
696Please respect copyright.PENANAsDjGMPZsTY
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696Please respect copyright.PENANAnHSDgXiM5Q
Ref1:https://pubmed.ncbi.nlm.nih.gov/25041462/696Please respect copyright.PENANAs7K9DnYl6z
Ref2:https://pubmed.ncbi.nlm.nih.gov/29383869/696Please respect copyright.PENANAQVvAz1Qz4W
Ref3:https://www.nature.com/articles/s42255-020-00307-1696Please respect copyright.PENANAFZmLrhCUpo
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科普專欄–薯不揀單
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薯仔聞茱莉

篇 #125
深入淺出–延壽藥物的研究(一)
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