سیتوکروم پی۴۵۰ ۱ای۲ (به اختصار CYP1A2)، عضوی از سیستم اکسیداز با عملکرد مخلوط سیتوکروم P450 است که در متابولیسم بیگانهزیستها در بدن انسان نقش دارد.[4] در انسان، آنزیم CYP1A2 توسط ژن CYP1A2 کدگذاری میشود.[5]
اطلاعات اجمالی ساختارهای موجود, PDB ...
بستن
در زیر جدولی از منتخب بسترها، القاء کنندهها و مهارکنندههای CYP1A2 آمدهاست.
مهار کنندههای CYP1A2 را میتوان بر اساس قدرت آنها طبقهبندی کرد، مانند:
- قوی، که باعث افزایش حداقل ۵ برابری در مقادیر AUC پلاسما یا کاهش بیش از ۸۰٪ در کلیرانس بسترها میشود.[6]
- متوسط، که باعث افزایش حداقل ۲ برابری در مقادیر AUC پلاسما یا کاهش ۵۰ تا ۸۰ درصدی در کلیرانس بسترها میشود.[6]
- ضعیف، که باعث افزایش حداقل ۱٫۲۵ برابری اما کمتر از ۲ برابری در مقادیر AUC پلاسما یا کاهش ۲۰–۵۰٪ در کلیرانس بسترها میشود.[6]
اطلاعات بیشتر بسترها, مهارکنندهها ...
بسترها | مهارکنندهها | القاکنندهها |
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قوی:
متوسط
ضعیف
قدرت نامشخص:
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القا کننده های متوسط:[8]
قدرت نامشخص:
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بستن
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Savage RA, Zafar N, Yohannan S, Miller JM (2021). "article-35398". Melatonin. Treasure Island (FL): StatPearls Publishing. PMID 30521244. Retrieved 2021-11-15. Ninety percent of melatonin is metabolized in the liver primarily by the enzyme CYP1A2
"Erlotinib". Metabolized primarily by CYP3A4 and, to a lesser degree, by CYP1A2 and the extrahepatic isoform CYP1A1
"Verapamil: Drug information. Lexicomp". UpToDate. Retrieved 2019-01-13. Metabolism/Transport Effects: Substrate of CYP1A2 (minor), CYP2B6 (minor), CYP2C9 (minor), CYP2E1 (minor), CYP3A4 (major), P-glycoprotein/ABCB1; Note: Assignment of Major/Minor substrate status based on clinically relevant drug interaction potential; Inhibits CYP1A2 (weak), CYP3A4 (moderate), P-glycoprotein/ABCB1
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- Quattrochi LC, Okino ST, Pendurthi UR, Tukey RH (Oct 1985). "Cloning and isolation of human cytochrome P-450 cDNAs homologous to dioxin-inducible rabbit mRNAs encoding P-450 4 and P-450 6". DNA. 4 (5): 395–400. doi:10.1089/dna.1985.4.395. PMID 3000715.
- Quattrochi LC, Pendurthi UR, Okino ST, Potenza C, Tukey RH (Sep 1986). "Human cytochrome P-450 4 mRNA and gene: part of a multigene family that contains Alu sequences in its mRNA". Proceedings of the National Academy of Sciences of the United States of America. 83 (18): 6731–5. Bibcode:1986PNAS...83.6731Q. doi:10.1073/pnas.83.18.6731. PMC 386583. PMID 3462722.
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