自然法則下,大多數的不同物種均不能互相交配。497Please respect copyright.PENANAt1WBOWv2v2497Please respect copyright.PENANAVtxTZnJ9Q5
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儘管如此,近日有科學家「成功」嘗試把人類的幹細胞注入到猴子的胚囊裡頭,有部份的混種細胞更成功生存及繁殖19日之多。497Please respect copyright.PENANAfr81X3o5V6
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(圖2)從圖中可見,當人類的幹細胞注入到猴子的胚囊後,科學家便將「混種細胞」在體外的實驗室培植器皿飼養,並不斷觀察兩種細胞的繁殖去向。497Please respect copyright.PENANArKgYyUraX2497Please respect copyright.PENANAGxOFxWF7t8
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(圖3)研究人員共嘗試注射人類幹細胞到132個猴子胚囊裡頭,隨著日數增加,胚胎的存活裡亦有所遞減。497Please respect copyright.PENANAYOcvF3WjNu497Please respect copyright.PENANAbncUfy43ra
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13日後,存活下來的胚胎僅只剩下3個。497Please respect copyright.PENANAyD4TBAMUxI
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數字上無疑是一道失敗,但在整個過程中,人類的幹細胞的確是能夠在猴子胚囊繁殖及演化,證實人類幹細胞有能力在其他物種的胚胎細胞生存。497Please respect copyright.PENANATBDCNUOAgz
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為何要做這種實驗?497Please respect copyright.PENANAc5pJagna3I
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初心是希望透過其他物種發展人體器官,作醫學治病用途。497Please respect copyright.PENANAF4sb3QSXHR
現今已有不少研究在體外實驗室培植皿上發展類近器官的結構,但對比確實在動物體內的環境裡,效率及性能暫時來說始終是無法比得上。497Please respect copyright.PENANAgqiRulvXVA
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至於道德倫理方面,這研究無疑是對全世界人士的一道試探。497Please respect copyright.PENANA1yP7YxWuHO
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6015555/497Please respect copyright.PENANAdXIbXijLE4