2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population

Background/aims The receptor for advanced glycation end-products (RAGE) has been implicated in the pathogenesis of diabetic microvascular complications. The aim of this study was to investigate the association between 2245G/A gene polymorphism of the RAGE gene and retinopathy in Malaysian type 2 dia...

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Main Authors: Ng, Zhi Xiang, Kuppusamy, Umah Rani, Tajunisah, Iqbal, Fong, Kenneth Choong Sian, Koay, Adrian Choon Aun, Chua, Kek Heng
Format: Article
Language:English
Published: BMJ Publishing Group 2012
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Online Access:http://eprints.um.edu.my/3779/1/2245G-A_polymorphism_of_the_receptor_for_advanced_glycation_end-products_%28RAGE%29_gene_is_associated_with_diabetic_retinopathy_in_the_Malaysian_population.pdf
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author Ng, Zhi Xiang
Kuppusamy, Umah Rani
Tajunisah, Iqbal
Fong, Kenneth Choong Sian
Koay, Adrian Choon Aun
Chua, Kek Heng
author_facet Ng, Zhi Xiang
Kuppusamy, Umah Rani
Tajunisah, Iqbal
Fong, Kenneth Choong Sian
Koay, Adrian Choon Aun
Chua, Kek Heng
author_sort Ng, Zhi Xiang
collection UM
description Background/aims The receptor for advanced glycation end-products (RAGE) has been implicated in the pathogenesis of diabetic microvascular complications. The aim of this study was to investigate the association between 2245G/A gene polymorphism of the RAGE gene and retinopathy in Malaysian type 2 diabetic patients. Methods 342 unrelated type 2 diabetic patients (171 with retinopathy (DR), 171 without retinopathy (DNR)) and 235 unrelated healthy subjects from all over Malaysia were recruited for this study. Genomic DNA was isolated from 3�ml samples of whole blood using a modified conventional DNA extraction method. The genotype and allele frequencies of 2245G/A were studied using the polymerase chain reaction�restriction fragment length polymorphism (PCR-RFLP) method. Results A statistically significant difference in 2245A minor allele frequency was found between control (5.5) and DR groups (15.2) (p<0.001, OR=3.06, 95 CI 1.87 to 5.02) as well as between DNR (8.2) and DR (15.2) groups (p<0.01, OR=2.01, 95 CI 1.24 to 3.27). However, when the frequency was compared between control and DNR groups, there was no significant difference (p>0.05). Conclusions This is the first study that shows an association between the 2245A allele of the RAGE gene and development of diabetic retinopathy in the Malaysian population.
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spelling um.eprints-37792019-08-02T05:57:25Z http://eprints.um.edu.my/3779/ 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population Ng, Zhi Xiang Kuppusamy, Umah Rani Tajunisah, Iqbal Fong, Kenneth Choong Sian Koay, Adrian Choon Aun Chua, Kek Heng R Medicine Background/aims The receptor for advanced glycation end-products (RAGE) has been implicated in the pathogenesis of diabetic microvascular complications. The aim of this study was to investigate the association between 2245G/A gene polymorphism of the RAGE gene and retinopathy in Malaysian type 2 diabetic patients. Methods 342 unrelated type 2 diabetic patients (171 with retinopathy (DR), 171 without retinopathy (DNR)) and 235 unrelated healthy subjects from all over Malaysia were recruited for this study. Genomic DNA was isolated from 3�ml samples of whole blood using a modified conventional DNA extraction method. The genotype and allele frequencies of 2245G/A were studied using the polymerase chain reaction�restriction fragment length polymorphism (PCR-RFLP) method. Results A statistically significant difference in 2245A minor allele frequency was found between control (5.5) and DR groups (15.2) (p<0.001, OR=3.06, 95 CI 1.87 to 5.02) as well as between DNR (8.2) and DR (15.2) groups (p<0.01, OR=2.01, 95 CI 1.24 to 3.27). However, when the frequency was compared between control and DNR groups, there was no significant difference (p>0.05). Conclusions This is the first study that shows an association between the 2245A allele of the RAGE gene and development of diabetic retinopathy in the Malaysian population. BMJ Publishing Group 2012 Article PeerReviewed application/pdf en http://eprints.um.edu.my/3779/1/2245G-A_polymorphism_of_the_receptor_for_advanced_glycation_end-products_%28RAGE%29_gene_is_associated_with_diabetic_retinopathy_in_the_Malaysian_population.pdf Ng, Zhi Xiang and Kuppusamy, Umah Rani and Tajunisah, Iqbal and Fong, Kenneth Choong Sian and Koay, Adrian Choon Aun and Chua, Kek Heng (2012) 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population. British Journal of Ophthalmology, 96 (2). pp. 289-292. ISSN 0007-1161, DOI https://doi.org/10.1136/bjophthalmol-2011-300658 <https://doi.org/10.1136/bjophthalmol-2011-300658>. http://dx.doi.org/10.1136/bjophthalmol-2011-300658 doi:10.1136/bjophthalmol-2011-300658
spellingShingle R Medicine
Ng, Zhi Xiang
Kuppusamy, Umah Rani
Tajunisah, Iqbal
Fong, Kenneth Choong Sian
Koay, Adrian Choon Aun
Chua, Kek Heng
2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population
title 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population
title_full 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population
title_fullStr 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population
title_full_unstemmed 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population
title_short 2245G/A polymorphism of the receptor for advanced glycation end-products (RAGE) gene is associated with diabetic retinopathy in the Malaysian population
title_sort 2245g a polymorphism of the receptor for advanced glycation end products rage gene is associated with diabetic retinopathy in the malaysian population
topic R Medicine
url http://eprints.um.edu.my/3779/1/2245G-A_polymorphism_of_the_receptor_for_advanced_glycation_end-products_%28RAGE%29_gene_is_associated_with_diabetic_retinopathy_in_the_Malaysian_population.pdf
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