痰呈綠色,是否一定等於有細菌感染呢?549Please respect copyright.PENANAyrgmpdNyeC549Please respect copyright.PENANAuXPdg8AGLl
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(圖2)我們身體其中一種免疫細胞含有一種酶素名為Myeloperoxidase,它在結晶狀態下會呈綠色。549Please respect copyright.PENANA8O9qZ6o2hV549Please respect copyright.PENANADYYEFqmnwO
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因此,痰呈綠色的其中一道原因就是免疫細胞在大開殺戒中,其綠色的酶素不經意間殘留在痰液裡頭。549Please respect copyright.PENANAnJZci1RZDb
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而另一個痰呈綠色的可能性,就是病人不幸受到綠膿桿菌感染。549Please respect copyright.PENANA9w5CAELQYq
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綠膿桿菌內含藍綠色的綠膿素(pyocyanin),綠膿素能侵害宿主的抗氧化功能,甚至能影響細胞製造能源的機制,非常惡毒。549Please respect copyright.PENANAi3pOJb7VyM
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而這病菌則較常在慢性肺炎患者的痰液中找得到。549Please respect copyright.PENANAIxYCMrBcDz
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(圖3)但是,就算痰呈黃色或綠色,亦不等於病人一定是受到細菌感染。549Please respect copyright.PENANAwigRYnaYaq549Please respect copyright.PENANA3z0TiMUqiB
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有研究找來相似年齡、性別、職業甚至是吸煙習慣的組別作對照,發現出現黃綠痰徵狀者無論給予抗生素與否,他們的康復速度及情況均無顯著分別。549Please respect copyright.PENANAOgWQkoH4UY
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因此,單純依憑痰的顏色是並不能夠作出正確的治療判斷。549Please respect copyright.PENANAPnEAckkzgN
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688091/?page=4549Please respect copyright.PENANAd9aP5qORlX
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2743764/549Please respect copyright.PENANARv9A0PIx56