甲氨蝶呤
叶酸
小肠
化学
吸收(声学)
动力学
非竞争性抑制
生物化学
药理学
内科学
酶
生物
医学
材料科学
物理
复合材料
量子力学
作者
Vinod S. Chungi,David W. A. Bourne,Lewis W. Dittert
标识
DOI:10.1002/jps.2600681225
摘要
Folic acid absorption from the lumen of the rat small intestine in situ obeyed Michaelis-Menten kinetics. The values of Vmax and Km for absorption were 4.63 × 10−7 M/min and 1.21 × 10−6 M, respectively. Folic acid and methotrexate were mutual competitive inhibitors of absorption. Their Ki values were 1.28 × 10−6 and 1.9 × 10−5 M, respectively.
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