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Birhan TA, Molla MD, Tesfa KH. The effect of angiotensin converting enzyme gene insertion/deletion polymorphism on anthropometric and biochemical parameters among hypertension patients: A case-control study from Northwest Ethiopia. PLoS One 2023; 18:e0285618. [PMID: 37200278 DOI: 10.1371/journal.pone.0285618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 04/26/2023] [Indexed: 05/20/2023] Open
Abstract
INTRODUCTION The angiotensin-converting enzyme (ACE) gene polymorphism has recently been linked with altered anthropometric and biochemical parameters in hypertensive patients. However, these links are still poorly understood and there is scarce evidence on the topic. Therefore, this study aimed to assess the effect of ACE gene insertion/deletion (I/D) polymorphism on anthropometric and biochemical parameters among essential hypertension patients at the University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia. MATERIALS AND METHODS A case-control study with 64 cases and 64 controls was conducted from October 07, 2020, to June 02, 2021. The anthropometric measurements, biochemical parameters, and ACE gene polymorphism were determined using standard operating procedures, enzymatic colorimetric method, and polymerase chain reaction, respectively. A one-way analysis of variance was used to determine the association of genotypes with other study variables. P value < 0.05 was regarded as statistically significant. RESULT The systolic/diastolic blood pressure and blood glucose level (P-value<0.05) were significantly higher among study hypertensive patients with the DD genotype. However, anthropometric measures and lipid profiles of cases and controls were not associated with ACE gene polymorphism (P-value>0.05). CONCLUSION The DD genotype of the ACE gene polymorphism was found to have a significant association with high blood pressure and blood glucose levels in the study population. Advanced studies with a considerable sample size may be needed to utilize the ACE genotype as a biomarker for the early detection of hypertension-related complications.
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Affiliation(s)
- Tsegaye Adane Birhan
- Department of Environmental and Occupational Health and Safety, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Meseret Derbew Molla
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Kibur Hunie Tesfa
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Association of angiotensin-converting enzyme gene insertion/deletion polymorphisms with risk of hypertension among the Ethiopian population. PLoS One 2022; 17:e0276021. [DOI: 10.1371/journal.pone.0276021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 09/27/2022] [Indexed: 11/12/2022] Open
Abstract
Introduction
Although the pathophysiological mechanism of hypertension is not fully elucidated yet, a large number of pieces of evidence have shown that genetic alterations in the renin-angiotensin-aldosterone system play a central role. However, the association of insertion/deletion polymorphism of the angiotensin-converting enzyme (ACE) gene with essential hypertension is controversial yet, and there is a limited number of publications among the Ethiopian population. Therefore, this study aimed to determine the association of ACE gene I/D polymorphism with the risk of hypertension among essential hypertension patients at the University of Gondar Comprehensive Specialized Hospital, Gondar, Ethiopia.
Materials and methods
A case-control study was conducted from October 07, 2020, to June 02, 2021, among hypertensive patients and normotensive control groups at the University of Gondar Comprehensive Specialized Hospital. A structured questionnaire was used to collect socio-demographic data and anthropometric measurements. Five milliliters of blood were drawn from each of the randomly selected 64 hypertensive and 64 normotensive participants for molecular test analysis. Genetic polymorphism of the ACE gene was identified using polymerase chain reaction (PCR) and electrophoresis. Data analysis was done using SPSS version 25.0 software. The strength of association between the genotype and hypertension was estimated through the calculation of adjusted odds ratio and 95% confidence intervals using logistic regression. P-value < 0.05 was considered statistically significant.
Result
The distribution of DD genotypes and D allele of the ACE gene were 48.4% and 63% in essential hypertensive patients, respectively, while it were 29.7% and 42.2% in control subjects respectively. The ACE DD genotype (p-value = 0.005) and D allele (p-value = 0.001) were more frequent among hypertensive patients as compared to controls.
Conclusion
The present study found that the DD genotype and D allele of the ACE gene has had a strong association with a high risk of hypertension in the study population.
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Liu M, Yi J, Tang W. Association between angiotensin converting enzyme gene polymorphism and essential hypertension: A systematic review and meta-analysis. J Renin Angiotensin Aldosterone Syst 2021; 22:1470320321995074. [PMID: 33726555 PMCID: PMC7983243 DOI: 10.1177/1470320321995074] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: The current meta-analytic study explored the relation between ACE gene
insertion/deletion (I/D), and the risk of EH by reviewing relevant trials so as to
determine the association between Angiotensin Converting Enzyme (ACE) gene polymorphism
and essential hypertension (EH) susceptibility. Methods: Relevant studies published before May 2019 were collected from the PubMed, Cochrane,
Embase, CNKI, VANFUN, and VIP databases. Results: Fifty-seven studies involving a total of 32,862 patients were included. These studies
found that ACE gene D allele was associated with higher EH susceptibility in allelic
model, homozygote model, dominant model, and regressive model, and that Asian population
with ACE gene D allele showed a higher EH susceptibility in all these models. Moreover,
ACE gene D allele was found closely related to a higher EH susceptibility in the
subgroups of HWE, NO HWE, Caucasian population, and Mixed population, with the majority
being males in allelic model, homozygote model, and regressive model and the majority
being females in allelic model. Conclusion: ACE gene D allele is associated with an overall higher EH susceptibility, which is
confirmed in the subgroup analysis of Asian population, HWE, NO HWE, Caucasian
population, and Mixed population.
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Affiliation(s)
- Mingyu Liu
- Ninth Hospital of Wuhan, Wuhan City, Hubei Province, China
| | - Jian Yi
- Department of Endocrinology, Ninth Hospital of Wuhan, Wuhan City, Hubei Province, China
| | - Wenwen Tang
- Department of Cardiology, Ninth Hospital of Wuhan, Wuhan City, Hubei Province, China
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Akther J, Das A, Rahman MA, Saha SK, Hosen MI, Ebihara A, Nakagawa T, Suzuki F, Nabi AHMN. Non-coding Single Nucleotide Variants of Renin and the (Pro)renin Receptor are Associated with Polygenic Diseases in a Bangladeshi Population. Biochem Genet 2021; 59:1116-1145. [PMID: 33677630 DOI: 10.1007/s10528-021-10049-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 02/10/2021] [Indexed: 02/06/2023]
Abstract
Non-coding variants or single-nucleotide polymorphisms (SNPs) play pivotal roles in orchestrating pathogeneses of polygenic diseases, including hypertension (HTN) and diabetes. Renin-angiotensin system (RAS) components-renin and (pro)renin receptor [(P)RR]-maintain homeostasis of body fluids. Genetic variants of RAS components are associated with risk of HTN and type 2 diabetes (T2D) in different ethnic groups. We identified associations of SNPs within the renin and (P)RR genes with HTN, T2D, and T2D-associated hypertension in 911 unrelated Bangladeshi individuals. Five non-coding SNPs were involved in modulating regulatory elements in diverse cell types when tagged with other SNPs. rs61827960 was not associated with any disease; rs3730102 was associated with increased risk of HTN and T2D while under dominant model, it showed protective role against T2D-associated HTN. SNP rs11571079 was associated with increased risk of HTN and T2D-associated HTN and decreased risk of T2D, exerting a protective effect. Renin haplotypes GCA and GTG were related to increased risk of T2D and T2D-associated HTN, respectively. Heterogeneous linkage of genotypic and allelic frequencies of rs2968915 and rs3112298 of (P)RR was observed. The (P)RR haplotype GA was associated with increased risk of HTN and significantly decreased risk of T2D. These findings highlight important roles of non-coding variants of renin and (P)RR genes in the etiology of several polygenic diseases.
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Affiliation(s)
- Jobaida Akther
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Ashish Das
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Md Arifur Rahman
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh.,National Institute of Cardiovascular Diseases, Sher-e-Bangla Nagar, Dhaka, 1207, Bangladesh
| | - Sajoy Kanti Saha
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Md Ismail Hosen
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Akio Ebihara
- Laboratory of Applied Biochemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.,United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Tsutomu Nakagawa
- Laboratory of Applied Biochemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.,United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Fumiaki Suzuki
- Laboratory of Applied Biochemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - A H M Nurun Nabi
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh.
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Vasudev R, Shah P, Patel J, Naranjo M, Hosein K, Rampal U, Patel H, Bu J, Roy J, Guragai N, Bhandari P, Virk H, Shamoon F, Bikkina M. Should Bangladeshi Race Be Considered as an Independent Risk Factor for Multi Vessel Coronary Artery Disease? Vasc Health Risk Manag 2020; 16:143-147. [PMID: 32341647 PMCID: PMC7166067 DOI: 10.2147/vhrm.s233303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 03/19/2020] [Indexed: 12/28/2022] Open
Abstract
Introduction Coronary Artery Disease (CAD) continues to be on the rise not only in the Western developed world but also affecting the South Asian race, particularly Bangladeshis. The objectives of this study were as follows: To determine whether or not risk factors of Bangladeshis differ from non-Bangladeshis, whether there is any difference in the extent of CAD for both groups, and if there are risk factors that can significantly affect the extent of CAD. Methods All patients with a diagnosis of CAD admitted to our 800-bed tertiary care hospital between January 2001 and December 2015 were retrospectively analyzed. We reviewed the age, sex, body-mass index (BMI), cardiac risk factors such as family history of CAD, dyslipidemia, hypertension, diabetes and smoking. We also reviewed coronary angiographic findings of these consecutive 150 Bangladeshis and a randomly selected group of 193 non-Bangladeshis. Results A total of 343 medical records were evaluated, this included two groups: 193 non-Bangladeshis and 150 Bangladeshi subjects. The Bangladeshi group was older than the non-Bangladeshi group (63.49 vs 59.22, p-value=0.001), and included a larger proportion of males than the non-Bangladeshi group (28.7% vs 15.68%, p-value=0.0116). Bangladeshi subjects are more likely to be smokers than non-Bangladeshi (11.75% vs 6.67%, χ2=12.7, p-value=0.0004). Non-obstructive, 1-vessel, 2-vessel and 3-vessel accounts for 13.33%, 36.67%, 22%, and 28% for Bangladeshis, and 16.39%, 20.77% 34.43% and 28.42% for non-Bangladeshis, respectively. The difference of extent of CAD is significant between two groups (χ2 =12.397, p-value=0.0061). The findings suggest that Bangladeshi ethnicity has almost 2 times the likelihood of having 1-vessel CAD at coronary angiography (OR=2.361, 95% CI 1.452-3.839, p=0.0005). Conclusion This study is a pivotal starting point for further evaluating the link between Bangladeshis and CAD. In our study we found that being Bangladeshi increases the risk of having CAD and may be an independent risk factor for multi-vessel CAD.
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Affiliation(s)
- Rahul Vasudev
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Priyank Shah
- Department of Cardiology, Phoebe Putney Memorial Hospital, Albany, GA, USA
| | - Jaimy Patel
- Department of Internal Medicine, St Michel Medical Center, Newark, NJ, USA
| | - Maria Naranjo
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Kevin Hosein
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Upamanyu Rampal
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Hiten Patel
- Department of Cardiology, Cape Fear Valley Medical Center, Campbell University, Fayetteville, NC, USA
| | - Jingnan Bu
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Justin Roy
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Nirmal Guragai
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Pragya Bhandari
- Department of Internal Medicine, Manipal College of Medical Sciences, Pokhara, Nepal
| | - Hartaj Virk
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Fayez Shamoon
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
| | - Mahesh Bikkina
- Department of Cardiology, St Joseph Regional Medical Center, Paterson, NJ, USA
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Zhang Y, Zhao Z, Wang C, Wang Z, Ren Y, Wang Y, Liu J. Association Between the Angiotensin-Converting Enzyme Gene Insertion/Deletion Polymorphism and Avascular Necrosis of the Femoral Head. Genet Test Mol Biomarkers 2019; 23:778-782. [PMID: 31633405 DOI: 10.1089/gtmb.2019.0068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective: This study investigated the association between the angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism and avascular necrosis of the femoral head (ANFH). Materials and Methods: The ACE gene I/D polymorphism was determined in 279 nontraumatic, ANFH Han Chinese patients (divided into idiopathic and steroid- and alcohol-induced subgroups) and 276 age- and gender-matched healthy controls using the polymerase chain reaction. Results: The frequencies of the ACE DD genotype and D allele were significantly higher among the ANFH patients as a whole and also in the idiopathic and steroid- and alcohol-induced ANFH subgroups compared to healthy controls (p < 0.05 for all). Additionally, the DD genotype, compared with the ID+II, ID, and II genotypes, conferred a higher risk of developing ANFH across all clinical subgroups (p < 0.001, odds ratio [OR] = 2.508; p < 0.001, OR = 2.072; p < 0.001, OR = 3.684, respectively) as well in each of the subgroups examined individually, including the idiopathic subgroup (p < 0.001, OR = 2.579; p < 0.001, OR = 2.091; p < 0.001, OR = 3.994, respectively), the steroid-induced subgroup (p = 0.005, OR = 2.345; p = 0.031, OR = 2.050; p = 0.007, OR = 3.000, respectively), and the alcohol-induced subgroup (p < 0.001, OR = 2.488; p = 0.012, OR = 2.050; p = 0.011, OR = 2.659, respectively) of ANFH patients. The ID genotype, compared with the II genotype, conferred a higher risk across all subtypes analyzed together, and in the idiopathic subgroup (p = 0.013, OR = 1.778; p = 0.028, OR = 1.910) analyzed separately. Additionally, the D allele, in comparison with the I allele, conferred a relatively higher risk across all subgroups (p < 0.001, OR = 2.101) as well as in each of the three subgroups examined individually (idiopathic: p < 0.001, OR = 2.178; steroid-induced: p = 0.003, OR = 1.910; and alcohol-induced: p < 0.001, OR = 2.094). Conclusion: The ACE DD and ID genotypes and D allele may be risk factors for susceptibility to ANFH in the Chinese population.
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Affiliation(s)
- Yongtao Zhang
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Zhiping Zhao
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Changyao Wang
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Ze Wang
- Department of Emergency Medicine, Qingdao Haici Medical Group, Qingdao, P.R. China
| | - Yuanzhong Ren
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Yingzhen Wang
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Jinzhao Liu
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
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Rizvi S, Raza ST, Siddiqi Z, Abbas S, Mahdi F. Association of Angiotensin-Converting Enzyme and Glutathione S-Transferase Gene Polymorphisms with Body Mass Index among Hypertensive North Indians. Sultan Qaboos Univ Med J 2015; 15:e477-85. [PMID: 26629373 DOI: 10.18295/squmj.2015.15.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 04/22/2015] [Accepted: 07/02/2015] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES This study aimed to examine the association of angiotensin-converting enzyme (ACE) and glutathione S-transferase (GST) gene polymorphisms with body mass index (BMI) in hypertensive North Indians. METHODS This case-control study was carried out between May 2013 and November 2014 at the Era's Lucknow Medical College & Hospital, Lucknow, India, and included 378 subjects divided into three groups. One group constituted 253 hypertensive individuals (sustained diastolic blood pressure of >90 mmHg and systolic blood pressure of >140 mmHg) who were subcategorised according to normal (<25 kg/m(2)) or high (≥25 kg/m(2)) BMI. The third group consisted of 125 age-, gender- and ethnically-matched normotensive controls with a normal BMI. Gene polymorphisms were evaluated by polymerase chain reaction. The genotypic and allelic frequency distribution among both groups were analysed. RESULTS A significant difference was found between GST theta 1-null and GST mu 1-positive genotype frequencies among the hypertensive overweight/obese individuals and controls (P = 0.014 and 0.033, respectively). However, no difference was observed in the frequency of ACE polymorphisms. ACE insertion/insertion genotype (P = 0.006), insertion and deletion alleles (P = 0.007 each) and GST theta 1-null and GST theta 1-positive genotypes (P = 0.006 each) were found to differ significantly between hypertensive cases and controls, regardless of BMI. CONCLUSION ACE and GST gene polymorphisms were not associated with BMI but were significantly associated with hypertension among the studied group of North Indians.
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Affiliation(s)
- Saliha Rizvi
- Departments of Biochemistry, Era's Lucknow Medical College & Hospital, Lucknow, India
| | - Syed T Raza
- Departments of Biochemistry, Era's Lucknow Medical College & Hospital, Lucknow, India
| | - Zeba Siddiqi
- Medicine, Era's Lucknow Medical College & Hospital, Lucknow, India
| | - Shania Abbas
- Departments of Biochemistry, Era's Lucknow Medical College & Hospital, Lucknow, India
| | - Farzana Mahdi
- Departments of Biochemistry, Era's Lucknow Medical College & Hospital, Lucknow, India
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Abbas S, Raza ST, Chandra A, Rizvi S, Ahmed F, Eba A, Mahdi F. Association of ACE, FABP2 and GST genes polymorphism with essential hypertension risk among a North Indian population. Ann Hum Biol 2014; 42:461-9. [DOI: 10.3109/03014460.2014.968206] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Zawilla N, Shaker D, Abdelaal A, Aref W. Angiotensin-converting enzyme gene polymorphisms and hypertension in occupational noise exposure in Egypt. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2014; 20:194-206. [PMID: 25000107 DOI: 10.1179/2049396714y.0000000067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND The gene-environment interaction in the pathogenesis of hypertension has not been extensively studied in occupational noise. OBJECTIVES The aim of this study was to determine the relationship between noise and hypertension in Egyptian workers, the interaction of angiotensin-converting enzyme (ACE) gene polymorphisms as modifiers, and the possible relationship between noise hearing impairment and hypertension. METHODS Study subjects were divided into two groups depending on noise exposure level. The control group (n = 161) was exposed to noise intensity <85 dB and the exposed group (n = 217) was exposed to noise intensity ≧85 dB. A polymerase chain reaction was used to differentiate the various genotypes of ACE insertion/deletion (I/D) and ACE G2350A. RESULTS Noise significantly increased the likelihood of hypertension. Carriers of the genotypes AG, GG, and DD were vulnerable to hypertension on noise exposure. No association between hypertension and hearing impairment or noise-induced hearing loss (NIHL) was found. CONCLUSION Our results support the association between ACE gene polymorphisms and occurrence of hypertension in noise-exposed workers.
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Kooffreh ME, Anumudu CI, Kumar PL. Insertion/deletion polymorphism of the angiotensin-converting enzyme gene and the risk of hypertension among residents of two cities, South-South Nigeria. Adv Biomed Res 2014; 3:118. [PMID: 24949289 PMCID: PMC4063107 DOI: 10.4103/2277-9175.133184] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 12/04/2013] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Hypertension is a public health challenge due to its high prevalence, and is a major risk factor for cardiovascular diseases. This study was designed to determine the frequency of the I/D polymorphism of the angiotensin-converting enzyme gene and its association with hypertension in a sample population of Calabar and Uyo, South-South Nigeria. MATERIALS AND METHODS A population-based case control design consisting of total of 1224 participants, 612 each of patients and controls, were randomly recruited from hypertension clinics and the general population. The I/D polymorphism was investigated using polymerase chain reaction. Multiple regression and odds ratio (OR) was applied to test whether the ID genotypes were predictors of hypertension. RESULTS The I/D genotype frequencies were 73(12%), 262(43%) and 277(45%); 74(12%), 303(50%) and 235(38%) for the II, ID, DD genotype in patient and control groups, respectively. A higher frequency of the ID genotype was observed in controls of which 208(61%) were females. By multiple regression analysis, age was a predictor for SBP in patients, r = 0.596, and DBP in controls, r = 0.555. Gender, Body mass index, I/D genotypes were not significant predictors for hypertension but the I/D polymorpism was associated with an increased risk for hypertension with an OR of 1.15 95%CI (0.924-1.456). CONCLUSION The I/D polymorphism of the angiotensin-converting enzyme gene was a risk factor for hypertension in the sample population of Calabar and Uyo. This research will form baseline information for subsequent molecular studies in this population.
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Affiliation(s)
- Mary Esien Kooffreh
- Department of Genetics and Biotechnology, University of Calabar, Calabar, Cross River, Nigeria
| | | | - P Lava Kumar
- Virology Unit, International Institute of Tropical Agriculture, Ibadan, Oyo, Nigeria
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Gender specific association of RAS gene polymorphism with essential hypertension: a case-control study. BIOMED RESEARCH INTERNATIONAL 2014; 2014:538053. [PMID: 24860821 PMCID: PMC4016835 DOI: 10.1155/2014/538053] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 03/24/2014] [Indexed: 12/19/2022]
Abstract
Renin-angiotensin system (RAS) polymorphisms have been studied as candidate risk factors for hypertension with inconsistent results, possibly due to heterogeneity among various genetic and environmental factors. A case-control association study was conducted to investigate a possible involvement of polymorphisms of three RAS genes: AGT M235T (rs699), ACE I/D (rs4340) and G2350A (rs4343), and AGTR1 A1166C (rs5186) in essential hypertensive patients. A total of 211 cases and 211 controls were recruited for this study. Genotyping was performed using PCR-RFLP method. The genotype and allele distribution of the M235T variant differed significantly in hypertensives and normotensives (OR-CI = 2.62 (1.24–5.76), P = 0.006; OR-CI = 0.699 (0.518–0.943), P = 0.018), respectively. When the samples were segregated based on sex, the 235TT genotype and T allele were predominant in the female patients (OR-CI = 5.68 (1.60-25.10), P = 0.002; OR-CI = 0.522 (0.330–0.826), P = 0.005) as compare to the male patients (OR-CI = 1.54 (1.24–5.76), P = 0.34; OR-CI = 0.874 (0.330–0.826), P = 0.506), respectively. For ACE DD variant, we found overrepresentation of “I”-allele (homozygous II and heterozygous ID) in unaffected males which suggest its protective role in studied population (OR-CI = 0.401 (0.224–0.718); P = 0.0009). The M235T variant of the AGT is significantly associated with female hypertensives and ACE DD variant could be a risk allele for essential hypertension in south India.
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Afruza R, Islam LN, Banerjee S, Hassan MM, Suzuki F, Nabi AN. Renin gene polymorphisms in bangladeshi hypertensive population. J Genomics 2014; 2:45-53. [PMID: 25057323 PMCID: PMC4105428 DOI: 10.7150/jgen.5193] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Objective: Linkages of renin gene polymorphisms with hypertension have been implicated in several populations with contrasting results. Present study aims to assess the pattern of renin gene polymorphisms in Bangladeshi hypertensive individuals. Methodology: Introns 1, 9 of renin gene and 4063 bases upstream of promoter sequence of renin gene were amplified from the genomic DNA of the total 124 (hypertensive and normotensive) subjects using respective primers. Polymerase chain reaction-based restriction fragment length polymorphisms were performed using BglI, MboI and TaqI restriction enzymes. Results: Homozygosity was common in renin gene regarding BglI (bb=48.4%, Bb=37.9%, BB=13.7%, χ2 =1.91, P>0.05), TaqI (TT=81.5%, Tt=14.5%, tt=4.0%, χ2 =7.50, P<0.01) and MboI (mm=63.7%, Mm=32.3%, MM=4.0%, χ2=0.00, P>0.05) polymorphisms among total study population. For BglI and TaqI genotype distribution, hypertensive subjects (BglI: χ2 =6.66, P<0.05; TaqI: χ2 = 10.28, P<0.005) significantly deviate from Hardy-Weinberg Equilibrium law compared to normotensive subjects (BglI: χ2=0.51, P>0.05; TaqI: χ2=0.20, P>0.05). On the other hand, with respect to MboI polymorphisms of renin gene, only normotensive subjects deviate from the law (patients: χ2=1.28, P>0.05; vs controls: χ2=6.81, P<0.01). In the context of allelic frequency, common T allele was clearly prevalent (T frequency=0.86, t frequency = 0.14) for TaqI, but rare alleles b and m were more frequent for both BglI (b frequency=0.69, B frequency=0.31) and MboI (m frequency=0.80 M frequency=0.20) polymorphisms, respectively. Conclusion: Thus, we report that Bangladeshi hypertensive subjects did not show any distinct pattern of renin gene polymorphisms compared to their healthy control subjects with regard to their genotypic and allelic frequencies.
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Affiliation(s)
- Rownock Afruza
- 1. Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000
| | - Laila N Islam
- 1. Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000
| | - Sajal Banerjee
- 2. Department of Cardiology, Bangabandhu Sheikh Mujib Medical University
| | - Md Mahbub Hassan
- 3. Laboratory Medicine Division, Apollo Hospitals, Dhaka, Bangladesh
| | - Fumiaki Suzuki
- 4. Laboratory of Animal Biochemistry, Faculty of Applied Biological Sciences, Gifu University, Japan
| | - Ahm Nurun Nabi
- 1. Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000
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Patnaik M, Pati P, Swain SN, Mohapatra MK, Dwibedi B, Kar SK, Ranjit M. Association of angiotensin-converting enzyme and angiotensin-converting enzyme-2 gene polymorphisms with essential hypertension in the population of Odisha, India. Ann Hum Biol 2013; 41:145-52. [PMID: 24112034 DOI: 10.3109/03014460.2013.837195] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Hypertension is a serious health issue worldwide and essential hypertension, which includes 90-95% of the cases, is influenced by both genetic and environmental factors. Identification of these factors may help in control of this disease. The Insertion/Deletion (I/D) polymorphism in Angiotensin-Converting Enzyme (ACE) gene and rs2106809 (C > T) polymorphism in Angiotensin-Converting Enzyme 2 (ACE2) gene have been reported to be associated with essential hypertension in different populations. AIM To investigate the association of ACE I/D and ACE2 rs2106809 polymorphisms with essential hypertension in the population of Odisha, an eastern Indian state. SUBJECTS AND METHODS A total of 246 hypertensives (159 males and 87 females) and 274 normotensives (158 males and 116 females) were enrolled in the study. Detailed anthropometric data, tobacco, alcohol and food habits were recorded and 2 ml of venous blood was collected for biochemical and genetic analysis. RESULTS The DD genotype of ACE and TT genotype of ACE2 were significantly high among female hypertensives, while T allele of ACE2 was linked to male hypertensives. In the male population, alcohol was also identified as a potential risk factor. CONCLUSION Among females, ACE I/D and ACE2 rs2106809 polymorphisms, while among males, ACE2 rs2106809 polymorphism and alcohol consumption are associated with essential hypertension in the study population.
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Affiliation(s)
- Manisha Patnaik
- Department of Molecular Biology, Regional Medical Research Centre , Bhubaneswar , India
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Islam AKMM, Majumder AAS. Coronary artery disease in Bangladesh: a review. Indian Heart J 2013; 65:424-35. [PMID: 23993003 PMCID: PMC3861019 DOI: 10.1016/j.ihj.2013.06.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 06/19/2013] [Indexed: 02/08/2023] Open
Abstract
Coronary artery disease (CAD) is an increasingly important medical and public health problem, and is the leading cause of mortality in Bangladesh. Like other South Asians, Bangladeshis are unduly prone to develop CAD, which is often premature in onset, follows a rapidly progressive course and angiographically more severe. The underlying pathophysiology is poorly understood. Genetic predisposition, high prevalence of metabolic syndrome and conventional risk factors play important role. Lifestyle related factors, including poor dietary habits, excess saturated and trans fat, high salt intake, and low-level physical activity may be important as well. Some novel risk factors, including hypovitaminosis D, arsenic contamination in water and food-stuff, particulate matter air pollution may play unique role. At the advent of the new millennium, we know little about our real situation. Large scale epidemiological, genetic and clinical researches are needed to explore the different aspects of CAD in Bangladesh.
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Affiliation(s)
- A K M Monwarul Islam
- Registrar, Department of Cardiology, National Institute of Cardiovascular Diseases, Dhaka 1207, Bangladesh.
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Choudhury I, Jothimalar R, Patra AK. Angiotensin Converting Enzyme Gene Polymorphism and its Association with Hypertension in South Indian Population. Indian J Clin Biochem 2012; 27:265-9. [PMID: 26405385 PMCID: PMC4577519 DOI: 10.1007/s12291-012-0217-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 04/10/2012] [Indexed: 12/13/2022]
Abstract
Hypertension, a well known risk factor for various cardiovascular, peripheral vascular and renal events is an important public health challenge. Renin angiotensin system (RAS) being the most vital pathogenic mechanism of hypertension is mediated by a key component; the angiotensin converting enzyme (ACE). The present study was aimed to know the relationship of ACE gene polymorphism and the possible risk of development of hypertension in south Indian population. The study included 101 clinically diagnosed hypertensive patients without any associated disease condition and 81 age and sex matched apparently healthy controls. Genotyping was performed using a polymerase chain reaction, (PCR) amplification of the intron 16 fragment harboring the 287 bp Alu repeat sequence. Three possible genotypes D/D, I/I homozygous and I/D heterozygous were analyzed where the D/D genotypes corresponds to higher ACE levels (D-Deletion, I-Insertion). The PCR products were separated on 2 % agarose gel. Statistical analysis was performed using SPSS.15 software program. We found a significance in frequency of D/D genotype in the hypertensive patients compared to the control group (p = 0.0005, odd's ratio = 4.157). This suggested that ACE (D/D) genotypes are more prone for the development of hypertension. This is relatively a pilot study; but nevertheless may assist in identifying the pathophysiological cause of hypertension.
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Affiliation(s)
- Ipsita Choudhury
- />Department of Biochemistry, Padmashree Dr. D. Y. Patil Medical College, Sant Tukaram Nagar, Pimpri, Pune, 411018 Maharashtra India
| | - R. Jothimalar
- />Department of Biochemistry, Sri Ramachandra Medical College & Research Institute, Porur, Chennai, 600116 India
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Abstract
Hypertension (HTN) is an increasingly important medical and public health problem. In Bangladesh, approximately 20% of adult and 40-65% of elderly people suffer from HTN. High incidence of metabolic syndrome, and lifestyle-related factors like obesity, high salt intake, and less physical activity may play important role in the pathophysiology of HTN. The association of angiotensin-converting enzyme (ACE) gene polymorphism and low birth weight with blood pressure has been studied inadequately. Studies have found relationship between mass arsenic poisoning and HTN. Hypovitaminosis D presumably plays role in the aetiopathogenesis of HTN in Bangladeshi population. South Asians appear to respond to antihypertensive therapy in a similar manner to the Whites. The latest National Institute for Health and Clinical Excellence guideline advocates a calcium-channel blocker as step 1 antihypertensive treatment to people aged > 55 years and an ACE inhibitor or a low-cost angiotensin-II receptor blocker for the younger people. Calcium-channel blockers and beta-blockers have been found to be the most commonly prescribed antihypertensive drugs in Bangladesh. Non-adherence to the standard guidelines and irrational drug prescribing are likely to be important. On the other hand, non-adherence to antihypertensive treatment is quite high. At the advent of the new millennium, we are really unaware of our real situation. Large-scale, preferably, nation-wide survey and clinical research are needed to explore the different aspects of HTN in Bangladesh.
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Affiliation(s)
- A K M Monwarul Islam
- Department of Cardiology, National Institute of Cardiovascular Diseases, Dhaka - 1207, Bangladesh.
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Settin AA, Alghasham A, Ali A, Dowaidar M, Ismail H. Frequency of thrombophilic genetic polymorphisms among Saudi subjects compared with other populations. Hematology 2012; 17:176-182. [DOI: 10.1179/102453312x13376952196575] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023] Open
Affiliation(s)
- Ahmad A. Settin
- Molecular Biology Research CenterCollege of Medicine, Qassim University, Saudi Arabia
| | - Abdullah Alghasham
- Department of PharmacologyCollege of Medicine, Qassim University, Saudi Arabia
| | - Ahmad Ali
- Molecular Biology Research CenterCollege of Medicine, Qassim University, Saudi Arabia
| | - Moataz Dowaidar
- Molecular Biology Research CenterCollege of Medicine, Qassim University, Saudi Arabia
| | - Hisham Ismail
- Clinical Pathology DepartmentCollege of Medicine, Qassim University, Saudi Arabia
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Nawaz SK, Hasnain S. Association of ACE ID and ACE G2350A polymorphism with increased blood pressure in persons exposed to different sound levels in Pakistan. Int Arch Occup Environ Health 2011; 84:355-60. [PMID: 21305316 DOI: 10.1007/s00420-011-0619-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Accepted: 01/19/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE To investigate the role of ACE ID and ACE G2350A polymorphism in increasing the blood pressure of persons exposed to different sound levels. METHOD Persons exposed to normal sound level (≤80 dBA) and noise (>80 dBA) were divided in two categories on the basis of blood pressure. Category A was comprised of the individuals with blood pressure ranges equal or less than that for normotensive persons. Category B was composed of the workers with blood pressure above than that for category A. ACE ID and ACE G2350A polymorphism was detected for analysis of its association with the increased blood pressure considering noise as modifier. RESULTS Least homozygous allele model for ACE ID polymorphism indicates no association of DD allele with the increased blood pressure in persons exposed to normal sound (Odds ratio: 0.831; 95% Confidence interval: 0.340-2.030). Similar findings were noted in persons exposed to noise (Odds ratio: 0.992; 95% Confidence interval: 0.536-1.835). Combining all the samples did not change the results (Odds ratio: 0.948; 95% Confidence interval: 0.580-1.549). For ACE G2350A polymorphism, least common homozygote model revealed that AA allele did not affect the chances of increased blood pressure in normal sound exposed group (Odds ratio: 0.827; 95% Confidence interval: 0.169-4.042) and noise exposed group (Odds ratio: 1.416; 95% Confidence interval: 0.682-2.941). There was no prominent variation in the results on combining all the samples (Odds ratio: 1.529; 95% Confidence interval: 0.807-2.872). CONCLUSIONS No association was observed between ACE ID/ACE G2350A polymorphism and the increased blood pressure in persons exposed to normal sound and noise in Pakistani population.
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Affiliation(s)
- Syed Kashif Nawaz
- Department of Microbiology and Molecular Genetics, University of the Punjab, New Campus, Lahore, Pakistan.
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Sameer AS, Syeed N, Tak SA, Bashir S, Nissar S, Siddiqi MA. ACE I/D Polymorphism in Hypertensive Patients of Kashmiri Population. Cardiol Res 2010; 1:1-7. [PMID: 28352369 PMCID: PMC5358231 DOI: 10.4021/cr101e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2010] [Indexed: 11/13/2022] Open
Abstract
Background The angiotensin-converting enzyme (ACE) gene in humans has an insertion-deletion (I/D) polymorphic state in intron 16 on chromosome 17q23. This polymorphism has been widely investigated in different diseases. In this study we aimed to investigate the ACE I/D genotype frequency in hypertensive cases in Kashmiri population. Materials and Methods We designed a case control study, where 52 hypertensive cases were studied for ACE I/D polymorphism against 150 age/sex matched controls taken from general population. The polymorphisms of ACE gene were investigated using polymerase chain reaction for detection of ACE I/D genotype. Fisher’s Chi square test was used for calculation of P value and OR. Results We found the frequency of ACE DD genotype to be 46.15% (24/52), II 23.07% (12/52) and DI 30.77% (16/52) in 52 hypertensive cases. Conclusions The ACE I/D genotype is positively associated with hypertension in our population.
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Affiliation(s)
- A Syed Sameer
- Departments of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, 190011, India; Departments of Clinical Biochemistry, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, India
| | - Nidda Syeed
- Departments of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, 190011, India
| | - Shahid A Tak
- Departments of Cardiology, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, India
| | - Samina Bashir
- Department of Clinical Biochemistry, Kashmri University, Hazratbal, Srinagar, Kashmir, India
| | - Saniya Nissar
- Departments of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, 190011, India; Department of Clinical Biochemistry, Kashmri University, Hazratbal, Srinagar, Kashmir, India
| | - Mushtaq A Siddiqi
- Departments of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, 190011, India
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Akra-Ismail M, Makki RF, Chmaisse HN, Kazma A, Zgheib NK. Association between angiotensin-converting enzyme insertion/deletion genetic polymorphism and hypertension in a sample of Lebanese patients. Genet Test Mol Biomarkers 2010; 14:787-92. [PMID: 20939740 DOI: 10.1089/gtmb.2010.0096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND/AIM several studies have looked at the potential link between angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism and the risk of hypertension and have shown that the DD polymorphism may be associated with a higher prevalence of hypertension. Our objective was to assess for possible association between ACE variants and hypertension in a sample of Lebanese patients. METHODS one hundred ninety-two Lebanese subjects were included. DNA was isolated and amplified by polymerase chain reaction. The products were identified by gel electrophoresis according to their size. RESULTS one hundred fifteen (59.9%) patients were hypertensive and 77 (40.1%) were nonhypertensive with the following genotype frequencies: 43.4% DD, 45.2% ID, and 11.4% II compared with 35.2% DD, 51.9% ID, and 12.9% II, respectively. Age was found to be the most significant risk factor for hypertension. This was more prominent when accounting for ACE genotype; for instance, the DD genotype with age had a significantly higher odds ratio (OR = 11.852; p = 0.001) than the ID genotype with age (OR = 4.599; p = 0.006), II genotype with age (OR = 1.866; p = 0.519), and age alone (OR = 5.558; p = 0.006). CONCLUSION our results show that the ACE I/D polymorphism is common in Lebanon, and the combinations of ACE D allele and age is associated with an increased risk of hypertension.
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Affiliation(s)
- Maya Akra-Ismail
- Facultie of Biochemistry, Beirut Arab University, Beirut, Lebanon
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Algasham A, Ismail H, Dewaidar M, Settin AA. Methylenetetrahydrofolate Reductase and Angiotensin-Converting Enzyme Gene Polymorphisms Among Saudi Population from Qassim Region. Genet Test Mol Biomarkers 2009; 13:817-20. [DOI: 10.1089/gtmb.2009.0019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Abdullah Algasham
- Department of Pharmacology, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Hisham Ismail
- Department of Clinical Pathology, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Moataz Dewaidar
- Department of Pediatrics, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Ahmad A. Settin
- Department of Pediatrics, College of Medicine, Qassim University, Buraydah, Saudi Arabia
- Department of Molecular Biology Research Center, College of Medicine, Qassim University, Buraydah, Saudi Arabia
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Camci L, Kilic Z, Dinleyici EC, Muslumanoglu H, Tepeli E, Ucar B. Angiotensin-converting enzyme gene insertion/deletion polymorphism frequency in normotensive children with a positive family history of essential hypertension. J Paediatr Child Health 2009; 45:742-6. [PMID: 19863706 DOI: 10.1111/j.1440-1754.2009.01605.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the possible relationship between blood pressure (BP) and angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism in normotensive children with a positive family history of essential hypertension (EHT). MATERIAL AND METHODS Three hundred seventy-six randomly selected normotensive schoolchildren (147 boys, 229 girls) between the ages of seven and 17 years were enrolled. Children were subdivided into a 'first-degree relative group' and a 'second-degree relative group' according to the presence of EHT in parents or grandparents, respectively. BP was measured twice from the right arm and the systolic BP, diastolic BP and mean BP were recorded. ACE gene I/D polymorphism was performed from all studied children and frequency od DD, ID and ID allele were analysed in each study group. RESULTS Allelic frequencies of the DD genotype of the ACE gene were higher in children with a positive history in the first- (36.2%) and second-degree (38.3%) relatives for EHT than the controls (30.7%) (P < 0.05 for both). Children with a positive family history of EHT and a DD genotype, had significantly higher SBP, DBP and MBP levels (P < 0.05) than the children with ID or II genotypes. CONCLUSION We found that the ACE gene DD genotype was common and that BP levels were higher in Turkish children with a positive family history of EHT and DD genotype. Because the presence of DD allele might be the one of the potential contributor of EHT pathogenesis, further studies needed in large cohort for long term follow-up for EHT in children with DD allele.
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Affiliation(s)
- Lale Camci
- Departments of Pediatrics, Eskisehir Osmangazi University, Turkey
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Alvi FM, Hasnain S. ACE I/D and G2350A Polymorphisms in Pakistani Hypertensive Population of Punjab. Clin Exp Hypertens 2009; 31:471-80. [DOI: 10.1080/10641960902825479] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhao Y, Xu C. [Structure and function of angiotensin converting enzyme and its inhibitors]. SHENG WU GONG CHENG XUE BAO = CHINESE JOURNAL OF BIOTECHNOLOGY 2009; 24:171-6. [PMID: 18464595 PMCID: PMC7148949 DOI: 10.1016/s1872-2075(08)60007-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Angiotensin converting enzyme (ACE, EC 3.4.15.1) is a membrane-bound, zinc dependent dipeptidase that catalyzes the conversion of the decapeptide angiotensin I to the potent vasopressor octapeptide angiotensin II by removing the two C-terminal amino acids. ACE is well known to be a key part of the rennin-angiotensin system that regulates blood pressure. The inhibitors of ACE have the potency of treating hypertension. This article reviews the structure-function relationship of ACE as well as its gene polymorphism and inhibitor development. In particular, it has been found that the catalytic mechanisms of the two active sites of somatic ACE in the cleavage of angiotensin I and bradykin are different. Therefore, by specifically targeting the individual active sites of somatic ACE, it will likely offer a new way to develop novel ACE inhibitors with fewer side effects.
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Affiliation(s)
- Yulan Zhao
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Rallidis LS, Gialeraki A, Varounis C, Dagres N, Kotakos C, Travlou A, Lekakis J, Kremastinos DT. Lack of association of angiotensin-converting enzyme insertion/deletion polymorphism and myocardial infarction at very young ages. Biomarkers 2009; 14:401-5. [DOI: 10.1080/13547500903039966] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sivitskaya LN, Kushniarevich EI, Danilenko NG, Novogrodski TA, Davydenko OG. Gene polymorphism of the renin-angiotensin system in six ethnogeographic regions of Belarus. RUSS J GENET+ 2008. [DOI: 10.1134/s1022795408050141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Uddin M, . MA, . NC, . SA. Angiotensin I-Converting Enzyme Gene Polymorphism in
Type 2 Diabetic Patients with Nephropathy. JOURNAL OF MEDICAL SCIENCES 2007. [DOI: 10.3923/jms.2007.682.685] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yu Y, Niu T, Venners SA, Zhang Y, Chen C, Huang A, Feng Y, Li D, Xing H, Wu D, Peng S, Xu X. Associations of baseline blood pressure levels and efficacy of Benazepril treatment with interaction of alpha-adducin and ACE gene polymorphisms in hypertensives. Clin Exp Hypertens 2005; 27:83-94. [PMID: 15773232 DOI: 10.1081/ceh-200044273] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The molecular mechanisms underlying essential hypertension are not fully elucidated. Although Benazepril is being widely used in antihypertensive medication, the agent is efficacious in only a portion of hypertensive patients. To evaluate the interaction of alpha-adducin gene Gly460Trp and angiotensin I-converting enzyme (ACE) gene I/D polymorphisms in regard to baseline blood pressure (BP) levels and the reductions of blood pressures after Benazepril treatment, we conducted an investigation of 954 Chinese hypertensive patients in Anhui province, China. We found that compared with the baseline systolic BP (SBP) of subjects with one ACE I allele and one alpha-adducin Trp allele, the baseline SBP of those with ACE DD and alpha-adducin Gly/Gly genotypes was significantly higher [Crude: beta(SE) = 7.83(3.09), p = .01; Adjusted: beta(SE) = 5.83(2.83), p = .04]. However, no associations were found between the interaction of ACE I/D and alpha-adducin Gly460Trp polymorphisms and the baseline diastolic BP or the BP response to Benazepril treatment. Our results suggested that the interaction effect of alpha-adducin Gly460Trp and ACE I/D polymorphisms might play a significant role in regulating baseline BP but not BP response to Benazepril.
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Affiliation(s)
- Yunxian Yu
- School of Life Science, University of Science and Technology of China, Hefei, Anhui, China
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Zhang J, Li K. On-off regulation of 3' exonuclease excision to DNA polymerization by Exo+ polymerase. BMB Rep 2004; 36:525-8. [PMID: 14659068 DOI: 10.5483/bmbrep.2003.36.6.525] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The role of 3' exonuclease excision in DNA polymerization was evaluated in primer extensions using 3' allele-specific primers that had exonuclease-digestible and exonuclease-resistant 3' termini. With exonuclease-digestible unmodified 3' mismatched primers, the exo+ polymerase yielded template-dependent products. Using exonuclease-resistant 3' mismatched primers, no primer-extended product resulted from exo+ polymerase. As a control, polymerase without proofreading activity yielded primer-dependent products from 3' mismatched primers. These data indicated that a successful removal of the mismatch is required for DNA polymerization from the 3' mismatched primers by exo+ polymerase. In addition to the well-known proofreading from this mismatch removal, the premature termination in DNA polymerization, due to the failure of the efficient removal of the mismatched nucleotides, worked as an off-switch in maintaining the high fidelity in DNA replication from exo+ polymerase.
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Affiliation(s)
- Jia Zhang
- Institute of Biotechnology, Institute of Pharmacy and Pharmacology, Nanhua University, Hengyang 421001, China
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