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The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm
The requirement of varying doses of warfarin for different individuals can be explained by environmental and genetic factors. We evaluated the frequency of vitamin K epoxide reductase complex subunit 1 (VKORC1) and cytochrome P450 2C9 (CYP2C9) variants together with patientdemographic characteristic...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Shaheed Beheshti University of Medical Sciences
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7757989/ https://www.ncbi.nlm.nih.gov/pubmed/33680011 http://dx.doi.org/10.22037/ijpr.2020.1101116 |
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author | Khaleqsefat, Esmat Khalaj-Kondori, Mohammad Jabarpour Bonyadi, Mortaza Soraya, Hamid Askari, Behnam |
author_facet | Khaleqsefat, Esmat Khalaj-Kondori, Mohammad Jabarpour Bonyadi, Mortaza Soraya, Hamid Askari, Behnam |
author_sort | Khaleqsefat, Esmat |
collection | PubMed |
description | The requirement of varying doses of warfarin for different individuals can be explained by environmental and genetic factors. We evaluated the frequency of vitamin K epoxide reductase complex subunit 1 (VKORC1) and cytochrome P450 2C9 (CYP2C9) variants together with patientdemographic characteristics and investigated their association with warfarin dose requirement with the objective to suggest a warfarin dosing algorithm. In this study, 185 patients with heart valve replacement from West Azerbaijan, Iran were genotyped for VKORC1 (-1639 G>A) and CYP2C9 (*2 and *3 alleles) by PCR-RFLP. Multiple linear regression was performed to create a new warfarin dosing algorithm. The frequency of variants in studied subjects was 12% for CYP2C9 *2, 25.8% for CYP2C9 *3, and 60% for -1639A. The patients who carried the A allele at position -1639 VKORC1 and the variants CYP2C9 *2 and *3 required a significantly lower daily mean warfarin dosage (P = 0.001). Statistical analysis also indicated a significant relationship between the daily maintenance dose of warfarin with age and blood pressure among the studied patients’ cohort (P < 0.001). This study showed that in the heart valve replacement patients considering VKORC1 and CYP2C9 polymorphisms beside demographic characteristics such as age will be helpful in pre-treatment dosing of warfarin which in turn reduces the complications associated with inappropriate warfarin dosing. |
format | Online Article Text |
id | pubmed-7757989 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Shaheed Beheshti University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-77579892021-03-05 The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm Khaleqsefat, Esmat Khalaj-Kondori, Mohammad Jabarpour Bonyadi, Mortaza Soraya, Hamid Askari, Behnam Iran J Pharm Res Original Article The requirement of varying doses of warfarin for different individuals can be explained by environmental and genetic factors. We evaluated the frequency of vitamin K epoxide reductase complex subunit 1 (VKORC1) and cytochrome P450 2C9 (CYP2C9) variants together with patientdemographic characteristics and investigated their association with warfarin dose requirement with the objective to suggest a warfarin dosing algorithm. In this study, 185 patients with heart valve replacement from West Azerbaijan, Iran were genotyped for VKORC1 (-1639 G>A) and CYP2C9 (*2 and *3 alleles) by PCR-RFLP. Multiple linear regression was performed to create a new warfarin dosing algorithm. The frequency of variants in studied subjects was 12% for CYP2C9 *2, 25.8% for CYP2C9 *3, and 60% for -1639A. The patients who carried the A allele at position -1639 VKORC1 and the variants CYP2C9 *2 and *3 required a significantly lower daily mean warfarin dosage (P = 0.001). Statistical analysis also indicated a significant relationship between the daily maintenance dose of warfarin with age and blood pressure among the studied patients’ cohort (P < 0.001). This study showed that in the heart valve replacement patients considering VKORC1 and CYP2C9 polymorphisms beside demographic characteristics such as age will be helpful in pre-treatment dosing of warfarin which in turn reduces the complications associated with inappropriate warfarin dosing. Shaheed Beheshti University of Medical Sciences 2020 /pmc/articles/PMC7757989/ /pubmed/33680011 http://dx.doi.org/10.22037/ijpr.2020.1101116 Text en This is an Open Access article distributed under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Khaleqsefat, Esmat Khalaj-Kondori, Mohammad Jabarpour Bonyadi, Mortaza Soraya, Hamid Askari, Behnam The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm |
title | The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm |
title_full | The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm |
title_fullStr | The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm |
title_full_unstemmed | The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm |
title_short | The Contribution of VKORC1 and CYP2C9 Genetic Polymorphisms and Patients’ Demographic Characteristics with Warfarin Maintenance Doses: A Suggested Warfarin Dosing Algorithm |
title_sort | contribution of vkorc1 and cyp2c9 genetic polymorphisms and patients’ demographic characteristics with warfarin maintenance doses: a suggested warfarin dosing algorithm |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7757989/ https://www.ncbi.nlm.nih.gov/pubmed/33680011 http://dx.doi.org/10.22037/ijpr.2020.1101116 |
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