Frequency distribution of high risk alleles of CYP2C19, CYP2E1, CYP3A4 genes in Haryana population.

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  • Additional Information
    • Source:
      Publisher: Elsevier Science B.V Country of Publication: Netherlands NLM ID: 9612020 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-7077 (Electronic) Linking ISSN: 13826689 NLM ISO Abbreviation: Environ Toxicol Pharmacol Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam : Elsevier Science B.V., c1996-
    • Subject Terms:
      Asian People/*genetics ; Cytochrome P-450 CYP2C19/*genetics ; Cytochrome P-450 CYP2E1/*genetics ; Cytochrome P-450 CYP3A/*genetics; Adolescent ; Adult ; Alleles ; Female ; Genotype ; Humans ; India ; Male ; Middle Aged ; Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; Risk ; Young Adult
    • Abstract:
      The genotype of an individual can significantly influence the disposition of a chemical, and determine their susceptibility to its toxicity. Many enzymes involved in either activation or detoxification of chemical carcinogen metabolism are polymorphically expressed, with the alleles presenting different enzymatic activities and some of them having been associated with susceptibility to cancer. Cytochrome P450 (P450 or CYP) constitutes the most important phase I enzyme group responsible for the metabolism of endogenous and exogenous (xenobiotics) substances. The present study was aimed to analyze the frequencies of commonly known polymorphisms of human xenobiotic metabolizing genes (XMG) in the Haryana State population of North India. The study was conducted in 308 healthy Haryana volunteers. DNA was extracted from leucocytes and the genetic polymorphisms in CYP2C19*2, CYP2C19*3, CYP2E1*5B and CYP3A4*1B were determined by digesting the PCR Product with restriction enzymes BamHI, SmaI, PstI and PstI respectively. The genotype frequencies of CYP2C19*2, CYP2C19*3, CYP2E1*5B, and CYP3A4*1B were found to be 22.0%, 0.0%, 2.11% and 2.0% respectively. The North Indian population which is known to be Caucasoid Aryans is ethnically different from South Indians known as Caucasoid Dravidians but no significant difference in genetic polymorphism was found.
      (Copyright © 2014 Elsevier B.V. All rights reserved.)
    • Contributed Indexing:
      Keywords: Cytochrome P450 enzymes; Genetic polymorphism; Haryana population; Xenobiotic metabolizing genes
    • Accession Number:
      EC 1.14.13.- (Cytochrome P-450 CYP2E1)
      EC 1.14.14.1 (CYP2C19 protein, human)
      EC 1.14.14.1 (Cytochrome P-450 CYP2C19)
      EC 1.14.14.1 (Cytochrome P-450 CYP3A)
      EC 1.14.14.55 (CYP3A4 protein, human)
    • Publication Date:
      Date Created: 20140513 Date Completed: 20150129 Latest Revision: 20221207
    • Publication Date:
      20240829
    • Accession Number:
      10.1016/j.etap.2014.03.013
    • Accession Number:
      24814262