[Home ] [Archive]   [ فارسی ]  
:: Main :: About us :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Articles archive::
For Authors::
For Reviewers::
Subscription::
News& Events::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
Indexing
                        
..
:: Volume 12, Issue 4 (Winter 2016) ::
Sci J Iran Blood Transfus Organ 2016, 12(4): 340-346 Back to browse issues page
Evaluation of common polymorphism of CYP2C9 in Warfarin-treated patients
F. Rad , M. Hamidpour , H. Saadat , B. Poopak
Abstract:   (6066 Views)

Abstract

Background and Objectives

Warfarin and other anticoagulant medications like Coumadin are widely prescribed by physicians to prevent ischemic events. A variety of factors such as sex, age and weight can affect warfarin dosage requirements. A clinical effect of warfarin depends on highly polymorphic drug-metabolizing (CYP2C9) enzymes. The objective of this study was to investigate the impact of CYP2C9*2, CYP2C9*3 polymorphisms on the variability of warfarin dosage requirements in Iranian population that were under warfarin therapy for different reasons.

Materials and Methods

The study included 100 patients with the mean age of 61.3 years. The restriction fragment length polymorphism method was used to identify polymorphisms of CYP2C9 (*1, *2, *3) in Iranian patients with ischemic heart disease in Peyvand Laboratory.

Results

Two-thirds (68.42%) of the patients had the wild-type (WT) CYP2C9*1*1 genotype 10.53%, 18.95%, and 2.1% of the patients had CYP2C9 *1*2, *1*3, and *2*3 genotype, respectively. WT CYP2C9*1*1 genotype was associated with a higher daily warfarin dosage (4.58 ± 1.57 mg/day  p= 0.02) as compared to other CYP2C9 genotypes.

Conclusions

The Iranian study sample is characterized by high frequency *1*1 genotypes that determine a higher warfarin-loading dose. Analysis of CYP2C9 gene variants allows the prediction of warfarin dosage. These results can be used to individualize treatment with warfarin in Iranian patients.

Key words: Warfarin, Genetic Polymorphism, CYP2C9 protein٬ human, Vitamin K

Abstract

Background and Objectives

Warfarin and other anticoagulant medications like Coumadin are widely prescribed by physicians to prevent ischemic events. A variety of factors such as sex, age and weight can affect warfarin dosage requirements. A clinical effect of warfarin depends on highly polymorphic drug-metabolizing (CYP2C9) enzymes. The objective of this study was to investigate the impact of CYP2C9*2, CYP2C9*3 polymorphisms on the variability of warfarin dosage requirements in Iranian population that were under warfarin therapy for different reasons.

Materials and Methods

The study included 100 patients with the mean age of 61.3 years. The restriction fragment length polymorphism method was used to identify polymorphisms of CYP2C9 (*1, *2, *3) in Iranian patients with ischemic heart disease in Peyvand Laboratory.

Results

Two-thirds (68.42%) of the patients had the wild-type (WT) CYP2C9*1*1 genotype 10.53%, 18.95%, and 2.1% of the patients had CYP2C9 *1*2, *1*3, and *2*3 genotype, respectively. WT CYP2C9*1*1 genotype was associated with a higher daily warfarin dosage (4.58 ± 1.57 mg/day  p= 0.02) as compared to other CYP2C9 genotypes.

Conclusions

The Iranian study sample is characterized by high frequency *1*1 genotypes that determine a higher warfarin-loading dose. Analysis of CYP2C9 gene variants allows the prediction of warfarin dosage. These results can be used to individualize treatment with warfarin in Iranian patients.

Key words: Warfarin, Genetic Polymorphism, CYP2C9 protein٬ human, Vitamin K

Abstract

Background and Objectives

Warfarin and other anticoagulant medications like Coumadin are widely prescribed by physicians to prevent ischemic events. A variety of factors such as sex, age and weight can affect warfarin dosage requirements. A clinical effect of warfarin depends on highly polymorphic drug-metabolizing (CYP2C9) enzymes. The objective of this study was to investigate the impact of CYP2C9*2, CYP2C9*3 polymorphisms on the variability of warfarin dosage requirements in Iranian population that were under warfarin therapy for different reasons.

Materials and Methods

The study included 100 patients with the mean age of 61.3 years. The restriction fragment length polymorphism method was used to identify polymorphisms of CYP2C9 (*1, *2, *3) in Iranian patients with ischemic heart disease in Peyvand Laboratory.

Results

Two-thirds (68.42%) of the patients had the wild-type (WT) CYP2C9*1*1 genotype 10.53%, 18.95%, and 2.1% of the patients had CYP2C9 *1*2, *1*3, and *2*3 genotype, respectively. WT CYP2C9*1*1 genotype was associated with a higher daily warfarin dosage (4.58 ± 1.57 mg/day  p= 0.02) as compared to other CYP2C9 genotypes.

Conclusions

The Iranian study sample is characterized by high frequency *1*1 genotypes that determine a higher warfarin-loading dose. Analysis of CYP2C9 gene variants allows the prediction of warfarin dosage. These results can be used to individualize treatment with warfarin in Iranian patients.

Keywords: Key words: Warfarin, Genetic Polymorphism, CYP2C9 protein٬ human, Vitamin K
Full-Text [PDF 280 kb]   (1642 Downloads) |   |   Full-Text (HTML)  (2087 Views)  
Type of Study: Research | Subject: Hematology
Published: 2016/01/5
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Rad F, Hamidpour M, Saadat H, Poopak B. Evaluation of common polymorphism of CYP2C9 in Warfarin-treated patients. Sci J Iran Blood Transfus Organ 2016; 12 (4) :340-346
URL: http://bloodjournal.ir/article-1-943-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 12, Issue 4 (Winter 2016) Back to browse issues page
فصلنامه پژوهشی خون Scientific Journal of Iran Blood Transfus Organ
The Scientific Journal of Iranian Blood Transfusion Organization - Copyright 2006 by IBTO
Persian site map - English site map - Created in 0.07 seconds with 39 queries by YEKTAWEB 4645