胆汁酸是在肝细胞酶系作用下由胆固醇转化生成的,目前根据化学结构,发现人体内有16种以上,含量最多为胆酸、鹅脱氧胆酸,其次为脱氧胆酸,在肝脏通过肽链与甘氨酸或牛磺酸结合成结合型胆酸,再与钠或钾结合成盐即胆汁酸盐。血中游离胆酸浓度极微,主要以结合形式存在。甘胆 Bile acids are produced by the conversion of cholesterol under the action of enzymes of the liver cells. At present, according to the chemical structure, there are more than 16 kinds of bile acids in human body, most of them are cholic acid, chenodeoxycholic acid, followed by deoxycholic acid, Chain and glycine or taurine combined into a combination of bile acids, and then combined with sodium or potassium salt that bile salts. Blood free cholic acid concentration is minimal, mainly in the form of binding exists. Gan gall