血型有很多種分類方法,較為最用的是ABO血型及Rh+-方法,原因是這兩種方法尤其是ABO血型方面出現不配合情況的話,將會引起實際上的醫學負面效果。621Please respect copyright.PENANAbrT8Ze2qIn
621Please respect copyright.PENANAIc7ZiQdDTl
而其他類型血型分辨方式得出的結果就算有所不吻合,也不會釀成重大或可見的醫學問題。621Please respect copyright.PENANA3FDT0gxVLq
621Please respect copyright.PENANAlbaO7FUyEb621Please respect copyright.PENANA4Y1UDnmdEX
621Please respect copyright.PENANAKXxsYgHnYV
(圖1)ABO血型的界定,取決於紅血球上的表面糖份組織結構,而每個紅血球的表面則接近有差唔多一百萬份這些糖份組織結構。621Please respect copyright.PENANAiRH37Wta0H
621Please respect copyright.PENANAYSilvvQyJW
除紅血球外,身體器官各細胞也擁有這些ABO糖份組織,所以在器官移植領域上亦相當重視ABO的吻合度。621Please respect copyright.PENANAfs8jv5XTU7
621Please respect copyright.PENANAENoixYbaOq621Please respect copyright.PENANA1cP3dsXgtZ
621Please respect copyright.PENANAl39OSsZ3Df
(圖2)我們體內產生的抗體,將會用來對抗外來品種的紅血球。621Please respect copyright.PENANAIllihGbYpf
621Please respect copyright.PENANA2nojVQRoer
O型血的人體內會產生出對抗A及B型糖份結構的抗體,摧毀對應的紅血球功能,因此沒法接收A、B或者AB血型的血液。621Please respect copyright.PENANAHdY9XXwimn
621Please respect copyright.PENANAKbdxWG41aF
有一點值得注意的是,無論任何血型的血液也好,我們體內均沒有對抗O血型糖份結構的抗體。621Please respect copyright.PENANAt1SEMAJyz7
621Please respect copyright.PENANAsebnWbbuqB
621Please respect copyright.PENANANgNGNpzM8h
621Please respect copyright.PENANAHhmeS7s0ge
621Please respect copyright.PENANAnWX2Sujv0v
621Please respect copyright.PENANACIbTNTz0dR
(圖3)正因為沒有O型抗體這回事,若然利用蛋白酶改變紅血球表面的糖份組織結構,就能夠統一將所有血型O型化,簡化思考抗體排斥的問題。621Please respect copyright.PENANAaEGBn8D4Ss
621Please respect copyright.PENANAyhVH7Rq7qo
這是不少科學家一直在研究的問題,事實上早在80年代已成功把B型血轉化成為O型血,但所需的功夫並不符合成本效益。621Please respect copyright.PENANAqNhfcR4CDr
621Please respect copyright.PENANATz1kTOTJGa
現時科學家們已逐步找出合適及有效率的蛋白酶能夠轉化各血型為O血型(Ref1),若能夠在學界及醫學界裡取得共識的話,將會在器官移植方面尤其有用,大幅度減免各種不理想的排斥反應。621Please respect copyright.PENANAh4jqtOVNlR
621Please respect copyright.PENANASKVErzjQy6
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。621Please respect copyright.PENANAPMP4tQqlda
621Please respect copyright.PENANAyEYH5EUxvb
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/toc621Please respect copyright.PENANAxTWTB0wlBd
621Please respect copyright.PENANAONqhkyrzwP
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。621Please respect copyright.PENANAuLFNg2T9WN
621Please respect copyright.PENANALDAs3WfpcI
Link:621Please respect copyright.PENANAUF9EJf9KQS
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio621Please respect copyright.PENANAzbJxodQ7sO
621Please respect copyright.PENANAsLeOHeevkb
621Please respect copyright.PENANAdDHiM3MP0u
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。621Please respect copyright.PENANAWPGsvsku78
621Please respect copyright.PENANAuxgpoek6km
621Please respect copyright.PENANAKceZI8tgAt
621Please respect copyright.PENANADy3flr8O9F
Ref1: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6956546/621Please respect copyright.PENANAl5PQRJVHql