Cholecystokin in - octapeptide ( cck - 8 ) is a kind of endogenous brain - gut peptide . recent studies suggest a regulatory function of cck - 8 in the immune system 八肽膽囊收縮素( cholecystokinin - octapeptide , cck - 8 )是一種內(nèi)源性的腦腸肽,近年研究表明cck - 8對免疫系統(tǒng)具有調(diào)節(jié)作用。
This inactive product is cleaved by a converting enzyme , mainly in the lung but also in the kidney and brain , to an octapeptide , angiotensin ii , which is a potent vasoconstrictor that also stimulates release of aldosterone 這一非活性產(chǎn)物經(jīng)轉(zhuǎn)換酶裂解,主要是在肺部但也在腎和腦部,成為八肽,即血管緊張素,這是和中強烈的血管收縮素,可刺激醛固酮的釋放。