نتایج جستجو برای: cyp2a6

تعداد نتایج: 638  

2007
Yonghua Wang Yan Li Bin Wang

Nicotine and a variety of other drugs and toxins are metabolized by cytochrome P450 (CYP) 2A6. The aim of the present study was to build a quantitative structure-activity relationship (QSAR) model to predict the activities of nicotine analogues on CYP2A6. Kernel partial least squares (K-PLS) regression was employed with the electro-topological descriptors to build the computational models. Both...

2015
Mai Miura Kensuke Ito Maiko Hayashi Motowo Nakajima Tohru Tanaka Shun-ichiro Ogura Aditya Bhushan Pant

Of late, numerous prodrugs are widely used for therapy. The hemeprotein cytochrome P450 (CYP) catalyzes the activation of prodrugs to form active metabolites. Therefore, the activation of CYP function might allow the use of lower doses of prodrugs and decrease toxicity. We hypothesized that the addition of 5-aminolevulinic acid (ALA), a precursor in the porphyrin biosynthetic pathway, enhances ...

2015
Anu Loukola Jadwiga Buchwald Richa Gupta Teemu Palviainen Jenni Hällfors Emmi Tikkanen Tellervo Korhonen Miina Ollikainen Antti-Pekka Sarin Samuli Ripatti Terho Lehtimäki Olli Raitakari Veikko Salomaa Richard J. Rose Rachel F. Tyndale Jaakko Kaprio Chris Cotsapas

Individuals with fast nicotine metabolism typically smoke more and thus have a greater risk for smoking-induced diseases. Further, the efficacy of smoking cessation pharmacotherapy is dependent on the rate of nicotine metabolism. Our objective was to use nicotine metabolite ratio (NMR), an established biomarker of nicotine metabolism rate, in a genome-wide association study (GWAS) to identify n...

2013
Makiko Shimizu Yuki Ishii Maho Okubo Hideo Kunitoh Tetsuya Kamataki Hiroshi Yamazaki

Recent genome-wide association studies have identified several lung cancer susceptibility loci. We previously carried out a replication study in male Japanese smokers that focused on chromosome 5p15 (telomerase reverse transcriptase) and 3q28 (tumor protein p63) (Shimizu et al., Journal of Cancer Therapy, Vol. 2, No. 5, 2011, pp. 690-696). The current study was performed to confirm the associat...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2003
Mitsuo Miyazawa Atsushi Sugie Tsutomu Shimada

(-)-Verbenone, a monoterpene bicyclic ketone, is a component of the essential oil from rosemary species such as Rosmarinus officinalis L., Verbena triphylla, and Eucalyptus globulus and is used for an herb tea, a spice, and a perfume. In this study, (-)-verbenone was found to be converted to 10-hydroxyverbenone by rat and human liver microsomal cytochrome p450 (p450) enzymes. The product format...

Journal: :Biochemical and Biophysical Research Communications 2007

Journal: :The Journal of pharmacology and experimental therapeutics 2006
Linda B von Weymarn Kathryn M Brown Sharon E Murphy

Nicotine is the major addictive agent in tobacco. The primary catalyst of nicotine metabolism in humans is CYP2A6. However, the closely related enzyme CYP2A13 is a somewhat better catalyst. CYP2A13 is an extrahepatic enzyme that is an excellent catalyst of the metabolic activation of the tobacco-specific carcinogen 4-(methylnitrosamine)-1-(3-pyridyl)-1-butanone (NNK). Here we report that both C...

2017
Luis A. López-Flores Gloria Pérez-Rubio Alejandra Ramírez-Venegas Enrique Ambrocio-Ortiz Raúl H. Sansores Ramcés Falfán-Valencia

This article contains data on the single nucleotide polymorphisms (SNPs) rs1137115, rs1801272 and rs28399433 rs4105144 in CYP2A6 associated to smoking related variables in Mexican Mestizo smokers (Pérez-Rubio et al., 2017) [1]. These SNPs were selected due to previous associations with other populations. Mexican Mestizo smokers were classified according their smoking pattern. A genetic associat...

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