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Comprehensive evaluation of variability in nicotine metabolism and CYP2A6 polymorphic alleles in four ethnic populations
https://doi.org/10.24517/00013012
https://doi.org/10.24517/00013012394f9e33-3b31-4e7f-9c51-d2c164267a98
名前 / ファイル | ライセンス | アクション |
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ME-PR-NAKAJIMA-M-01.pdf (211.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Comprehensive evaluation of variability in nicotine metabolism and CYP2A6 polymorphic alleles in four ethnic populations | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
ID登録 | ||||||
ID登録 | 10.24517/00013012 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Nakajima, Miki
× Nakajima, Miki× Fukami, Tatsuki× Yamanaka, H.× Higashi, E.× Sakai, H.× Yoshida, R.× Kwon, J. T.× McLeod, H. L.× Yokoi, T. |
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著者別表示 |
中嶋, 美紀
× 中嶋, 美紀× 深見, 達基 |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学ナノ生命科学研究所 / 金沢大学大学院医学系研究科機能分子医薬学 | |||||
書誌情報 |
Clinical Pharmacology and Therapeutics 巻 80, 号 3, p. 282-297, 発行日 2006-09-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0009-9236 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.clpt.2006.05.012 | |||||
出版者 | ||||||
出版者 | Elsevier | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Human cytochrome P450 (CYP) 2A6 metabolizes nicotine to cotinine and is a possible modulator of nicotine addiction. Quantitative and qualitative differences in nicotine addiction have been observed between ethnic groups. However, there are few data on the ethnic influences of the CYP2A6-nicotine metabolism relationship, particularly with regard to black subjects. We determined the nicotine metabolism and CYP2A6 genotype in 176 white subjects and 160 black subjects, comparing them with our previous data from 209 Korean subjects and 92 Japanese subjects. Large interindividual differences were observed in the cotinine/nicotine ratios in plasma calculated as an index of nicotine metabolism in white subjects (range, 0.6-36.5) and in black subjects (range, 0.9-30.4). No ethnic difference in the metabolic ratio was observed among white subjects (mean, 7.2 ± 5.0), black subjects (mean, 7.1 ± 4.7), and Korean subjects (mean, 8.7 ± 11.9), whereas Japanese subjects showed a significantly (P < .005) lower metabolic ratio (mean, 3.8 ± 3.1) compared with the other populations. Women showed significantly (P < .05) higher metabolic ratios than men in the black population (8.0 ± 5.3 versus 6.0 ± 3.7). Obvious ethnic differences in the CYP2A6 alleles were observed among these 4 populations. The combined frequencies of the alleles lacking or showing reduced enzymatic activity (CYP2A6*2, CYP2A6*4, CYP2A6*5, CYP2A6*7, CYP2A6*9, CYP2A6*10, CYP2A6*11, CYP2A6*17, CYP2A6*19, and CYP2A6*20) were 9.1%, 21.9%, 42.9%, and 50.5% in white, black, Korean, and Japanese subjects, respectively. These CYP2A6 alleles were associated with reduced nicotine metabolism. Among the homozygotes of CYP2A6*1, interindividual and ethnic differences in the metabolic ratio were still observed. Thus some factors other than genetic ones might also contribute to the interindividual and ethnic differences. This comprehensive study of 4 populations extends our understanding of nicotine metabolism and the impact of genetic polymorphisms of the CYP2A6 gene. © 2006 American Society for Clinical Pharmacology and Therapeutics. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |