科普專欄–薯不揀單 - 三十秒科學–心臟肥大

當血壓長期處於過高狀態的時候，便有機會出現心臟肥大(Cardiac hypertrophy)的情況。520Please respect copyright.ＰＥＮＡＮＡK1fVBt92Qg
520Please respect copyright.ＰＥＮＡＮＡ9nSBTWCJ3t
520Please respect copyright.ＰＥＮＡＮＡRm5VhUqJ95
520Please respect copyright.ＰＥＮＡＮＡRCXMLl3srh
(圖2)心臟的肌肉會利用收縮及膨脹的舉動把血液送到全身，如果血壓高企的話，心臟肌肉細胞便會自行膨脹增大，好使心臟有更強力量抵禦血液帶來的壓力，且能繼續維持正常功能把血液送往全身。520Please respect copyright.ＰＥＮＡＮＡ297XZXkGKV
520Please respect copyright.ＰＥＮＡＮＡXUD1keltLM
520Please respect copyright.ＰＥＮＡＮＡ5QcXAS7iC7
這現象稱之為心臟肥大(Cardiac hypertrophy)。520Please respect copyright.ＰＥＮＡＮＡ26xCcmph1S
520Please respect copyright.ＰＥＮＡＮＡoPPuzkoEdY
520Please respect copyright.ＰＥＮＡＮＡK6jBam813W
(圖3)當血壓持續高企及攀升到某一個位，心臟的肌肉再也沒法透過膨脹增大來維持運作，這時候心臟便會進入「放棄人生」的狀態，再也不會激烈地膨脹收縮，形成心臟衰竭(Heart failure)局面，血液因而再也沒能輸送到身體各部位。520Please respect copyright.ＰＥＮＡＮＡohfAMeY1aD
520Please respect copyright.ＰＥＮＡＮＡn1arxcOBS5
520Please respect copyright.ＰＥＮＡＮＡfEJdFJSCjh
520Please respect copyright.ＰＥＮＡＮＡ34MRI2yXVu
換句話說，長期因高血壓所造成的心臟肥大(Cardiac hypertrophy)，會是形成心臟衰竭(Heart failure)的其中一道誘因。520Please respect copyright.ＰＥＮＡＮＡZ66uzBRLHb
520Please respect copyright.ＰＥＮＡＮＡKnd3dFcWmH
520Please respect copyright.ＰＥＮＡＮＡt7YyGO2630
(圖4)有見及此，有不少科學家會以人工方式在動物模型上製造心臟肥大(Cardiac hypertrophy)的局面，藉此了解箇中對細胞所做成的影響，從而找出防止下一步心臟衰竭(Heart failure)的潛在發生。520Please respect copyright.ＰＥＮＡＮＡcqP8ka99nC
520Please respect copyright.ＰＥＮＡＮＡwM4765eRzZ
520Please respect copyright.ＰＥＮＡＮＡzSao9MZ8Ej
其中的一種手段，就是利用縫線的手法局部減低心臟血管血液流動的動向。520Please respect copyright.ＰＥＮＡＮＡrjfAATXzwo
從圖中可見，縫線後左心房所承受的血壓將會大幅度增強。520Please respect copyright.ＰＥＮＡＮＡw8qaN6Xc2g
520Please respect copyright.ＰＥＮＡＮＡLxBwYlwJWp
(圖5)圖中可以清晰見得到，縫線後左心房的確出現肥大的狀況。520Please respect copyright.ＰＥＮＡＮＡeYlQHRMwFS
520Please respect copyright.ＰＥＮＡＮＡRjpTQ0TZ0X
520Please respect copyright.ＰＥＮＡＮＡbkmwO26qTB
而這些動物的付出，確實是為人類的健康作出了非常大的貢獻，下集將會再作進一步的講解。520Please respect copyright.ＰＥＮＡＮＡn74k8DBrus
520Please respect copyright.ＰＥＮＡＮＡgeDfCKd6gh
520Please respect copyright.ＰＥＮＡＮＡbsFU8cg1sz
520Please respect copyright.ＰＥＮＡＮＡFPbco0nl2U
520Please respect copyright.ＰＥＮＡＮＡqoIW35aMe3
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。520Please respect copyright.ＰＥＮＡＮＡMs09EqDOSt
520Please respect copyright.ＰＥＮＡＮＡ0Z5X6ZHMWA
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/toc520Please respect copyright.ＰＥＮＡＮＡ3NHkCARE2K
520Please respect copyright.ＰＥＮＡＮＡcoByr33tj5
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。520Please respect copyright.ＰＥＮＡＮＡxjguRCaJDJ
520Please respect copyright.ＰＥＮＡＮＡ6TyJGE031v
Link:520Please respect copyright.ＰＥＮＡＮＡcfSQOWqslf
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio520Please respect copyright.ＰＥＮＡＮＡk6H5BofwHl
520Please respect copyright.ＰＥＮＡＮＡj44abEZ7Ug
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。520Please respect copyright.ＰＥＮＡＮＡvja08cV8O1
520Please respect copyright.ＰＥＮＡＮＡ7BAI9KwbcB
Ref1:https://pubmed.ncbi.nlm.nih.gov/12738623/

ns216.73.216.190da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章