59.Enflurane造成的肝炎與下列那個CYP酵素作用關係最大?
(A)1A2
(B)2E1
(C)2D6
(D)3A4
統計: A(1380), B(4377), C(1190), D(1467), E(0) #1528030
詳解 (共 9 筆)
( 更新)CYP 2E1 的Substrate : acetaminophen, ethanol, halothane
------------------------
至於INH 和 Disulfram 與CYP2E1 的關係在不同資料來源有異,大家可以評估下,如下:
1. 在Applied Biopharmaceutics & Pharmacokinetics 6th edition的280 頁提到,CYP2E1 is induced by INH & disulfiram. ( 二者是Inducer ) ... 可能看誰有第七版的課本查看看有沒有更動
2. 在最近查到的Uptodate資料 中,提到 Disulfiram 是CYP2E1強力抑制劑,而INH 為CYP2E1 的中度誘導劑+中度抑制劑
提供給大家參考看看
經CYP活化造成致癌物、毒物之受質
CYP1A1:多環、多苯環類(PAH, polycyclic aromatic hydrocarbon)
CYP1A2:含氨化合物
CYP2E1:有機溶劑、酒精、全身吸入性麻醉藥
CYP3A4:類固醇類
補充個
1A2誘導:香菸
2E1誘導:酒精
Enflurane is metabolized to a modest extent, with 2%–8% of absorbed enflurane undergoing oxidative metabolism by hepatic CYP2E1. Fluoride ions are a by-product of enflurane metabolism, but plasma fluoride levels are low and nontoxic. Patients taking isoniazid exhibit enhanced metabolism of enflurane with consequent elevation of serum fluoride.
節錄自:
Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 13e
Chapter 21: General Anesthetics and Therapeutic Gases