Genetic polymorphisms of the CYP3A4, CYP3A5, CYP3A7 and CYP1A2 among the Jordanian population |
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Authors: | Salameh Ghada Al Hadidi Kamal El Khateeb Mohammad |
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Affiliation: | Pathology, Microbiology and Forensic Department, University of Jordan, Amman, Jordan. gsalameh79@gmail.com |
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Abstract: | Cytochromes P450 (CYP450) plays an extremely vital role in oxidation, reduction, and peroxidation of numerous endogenous and exogenous compounds, like drugs and procarcinogens. Mainly, expression occurs in the liver, in varying polymorphic forms. Therefore, proposed as biomarkers of susceptibility to carcinogenicity and toxicity. The objective of this study was to find the allelic frequencies of CYP3A5*2,*3,*4,*5,*6,*7, CYP3A4*1B, CYP3A7*1C and CYP1A2*1C, *1D, *1E, *1F enzymes in Jordanians, and to compare them with other ethnic groups. We used polymerase chain reaction-restriction fragment length (PCR-RFLP) to genotype alleles, and we calculated frequencies using Hardy Weinberg's equation (HWE). Allelic frequencies results were: CYP3A5*2 (0.2%), CYP3A5*3 (86.6%), CYP3A5*6 (1.7%), CYP*3A5*4,*5*7 not detected, CYP3A4*1B (11.7%), CYP3A7*1C (1.7%). Finally 6.5%, 18.2%, 6.0%, 67.3% were the results of CYP1A2*1C, 1D, 1E and 1F, respectively. In conclusion, genotyping method and results of this study can be adopted or used in pharmacotherapy, toxicity and carcinogenic studies in Jordan. |
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