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。517Please respect copyright.ＰＥＮＡＮＡ4cSjtXpUM3
517Please respect copyright.ＰＥＮＡＮＡt9IjCR2ek8
517Please respect copyright.ＰＥＮＡＮＡRuWK3JaDI7
517Please respect copyright.ＰＥＮＡＮＡBYz3StIInI
(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。517Please respect copyright.ＰＥＮＡＮＡuERlmbAEXz
517Please respect copyright.ＰＥＮＡＮＡiu55FMSCvW
517Please respect copyright.ＰＥＮＡＮＡ26loSyizjc
這現象稱之為心臟肥大(Cardiac hypertrophy)。517Please respect copyright.ＰＥＮＡＮＡpIcuyapHZc
517Please respect copyright.ＰＥＮＡＮＡQHhRP9mIf6
517Please respect copyright.ＰＥＮＡＮＡXCqRbPzJ5z
(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。517Please respect copyright.ＰＥＮＡＮＡjO9Bl06GrD
517Please respect copyright.ＰＥＮＡＮＡ5UD6cKlKTm
517Please respect copyright.ＰＥＮＡＮＡMK42kdMtu0
517Please respect copyright.ＰＥＮＡＮＡkdOANwXsr1
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。517Please respect copyright.ＰＥＮＡＮＡ4YoGWET0yw
517Please respect copyright.ＰＥＮＡＮＡhDXd3akdyG
517Please respect copyright.ＰＥＮＡＮＡXrNyuSai6T
(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。517Please respect copyright.ＰＥＮＡＮＡ9j4h1WzFUz
517Please respect copyright.ＰＥＮＡＮＡU7fYCHJssH
517Please respect copyright.ＰＥＮＡＮＡg9hj6zWabI
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。517Please respect copyright.ＰＥＮＡＮＡb7Nz6CwPmW
從圖中可見，縫線後左心房所承受的血壓將會大幅度增強。517Please respect copyright.ＰＥＮＡＮＡBFJVbHYEsG
517Please respect copyright.ＰＥＮＡＮＡ4SrtUGXF7b
(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。517Please respect copyright.ＰＥＮＡＮＡc51ZAW2rNl
517Please respect copyright.ＰＥＮＡＮＡn9FD8STPKk
517Please respect copyright.ＰＥＮＡＮＡ5fiuVVpYzi
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。517Please respect copyright.ＰＥＮＡＮＡ1ws2WiCPDT
517Please respect copyright.ＰＥＮＡＮＡbAlVX3tXNl
517Please respect copyright.ＰＥＮＡＮＡS5DfSkOEnU
517Please respect copyright.ＰＥＮＡＮＡhOlVSAlxhE
517Please respect copyright.ＰＥＮＡＮＡuNBiO5oRw3
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。517Please respect copyright.ＰＥＮＡＮＡeBch9xtH8T
517Please respect copyright.ＰＥＮＡＮＡxnkRe84X69
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/toc517Please respect copyright.ＰＥＮＡＮＡY9l9dU5UqG
517Please respect copyright.ＰＥＮＡＮＡd6HqVudBjM
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。517Please respect copyright.ＰＥＮＡＮＡNOA6pnqjPl
517Please respect copyright.ＰＥＮＡＮＡiUfwm3xKRY
Link:517Please respect copyright.ＰＥＮＡＮＡKJE3WLAJvt
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio517Please respect copyright.ＰＥＮＡＮＡHQqqX8RpEy
517Please respect copyright.ＰＥＮＡＮＡZiodSbdX9O
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。517Please respect copyright.ＰＥＮＡＮＡuMdL9ivUcy
517Please respect copyright.ＰＥＮＡＮＡm70sokn3kV
Ref1:https://pubmed.ncbi.nlm.nih.gov/12738623/

ns216.73.216.228da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章