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Hussain M, Khan HN, Abbas S, Ali A, Aslam MN, Awan FR. Tetra-ARMS-PCR assay development for genotyping of AGT rs699 T/C polymorphism, its comparison with PCR-RFLP and application in a case-control association study of cardiovascular disease patients. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2023:1-16. [PMID: 36815563 DOI: 10.1080/15257770.2023.2181972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Genetic variations in the AGT gene play a significant role in controlling the plasma concentration of angiotensinogen (precursor protein of bioactive octapeptide angiotensin II) and the efficacy of antihypertensive drugs. In the current study, Tetra-Amplification Refractory Mutation System-Polymerase Chain Reaction (T-ARMS-PCR) was developed for genotyping of AGT rs699 T/C polymorphism and validated through Sanger DNA sequencing. Its efficiency was also tested using 474 human DNA samples [control, n = 181; cardiovascular disease (CVD) patients, n = 293]. Results showed that T-ARMS-PCR is superior to the commonly used PCR-Restriction Fragment Length Polymorphism (PCR-RFLP). Statistical analysis revealed that the AGT rs699 CC genotype is more prevalent in the CVD patient group (37% vs. 28%) and AGT rs699 C allele and CC genotype increased the risk of CVD by 1.4 and 1.9 fold, respectively. In summary, T-ARMS-PCR is the most suitable approach for quick and efficient genotyping of AGT rs699 T/C polymorphism in a large population in resource-limited countries, Furthermore, AGT rs699 T/C polymorphism is associated with the risk of CVD in the Punjabi Pakistani population.
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Affiliation(s)
- Misbah Hussain
- Diabetes and Cardio-Metabolic Disorders Lab, Human Molecular Genetics and Metabolic Disorders Group, Health Biotechnology, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.,Department of Biotechnology, University of Sargodha, Sargodha, Pakistan.,NIBGE College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Islamabad, Pakistan
| | - Haq Nawaz Khan
- Diabetes and Cardio-Metabolic Disorders Lab, Human Molecular Genetics and Metabolic Disorders Group, Health Biotechnology, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.,NIBGE College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Islamabad, Pakistan.,Department of Biological & Biomedical Sciences, The Aga Khan University, Karachi, Pakistan
| | - Shahid Abbas
- Faisalabad Institute of Cardiology, Faisalabad, Pakistan
| | - Ansar Ali
- Department of Biotechnology, University of Sargodha, Sargodha, Pakistan
| | | | - Fazli Rabbi Awan
- Diabetes and Cardio-Metabolic Disorders Lab, Human Molecular Genetics and Metabolic Disorders Group, Health Biotechnology, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.,NIBGE College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Islamabad, Pakistan
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Prasad M, Rajarajeswari D, Ramlingam K, Viswakumar R, Suneel B, Conjeevaram J, Aruna P, Fathima N, Vishwakarma SK, Khan AA. Association of Angiotensin II Type 1 Receptor (AT1R) Gene Polymorphism with Angiotensin II Serum Levels in Patients with Essential Hypertension. Indian J Clin Biochem 2023; 38:110-119. [PMID: 36684488 PMCID: PMC9852369 DOI: 10.1007/s12291-022-01041-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/30/2022] [Indexed: 01/25/2023]
Abstract
Essential hypertension (EH) is a multifactorial, polygenic condition, and is one of the most important comorbidities that contributes to stroke, myocardial infarction, cardiac failure, and renal failure. The continuous increasing rate of morbidity and mortality associated with EH presents an unmet need of population-based studies to explore pathophysiology as well as newer strategies for better diagnosis, prognosis and treatment. This study aimed to determine genotype and allele frequencies of A1166C polymorphism of AT1R gene in Indian patients with EH and correlated with serum levels of Angiotensin II. A total of 200 patients with EH and 200 age- and gender-matched control individuals were included in this study from the General Medicine Department Outpatient at Narayana Medical College and Hospital, Nellore, Andhra Pradesh, India. Patients with systolic blood pressure (SBP) ≥ 140 mmHg and/or diastolic blood pressure (DBP) ≥ 90 mmHg were considered as hypertensive. The findings of this study revealed significantly increased risk of C/A heterozygote and allele C in both men and women. Moreover, both men and women patients with EH showed higher serum levels of Angiotensin II with C/A as well as AA genotypes. These findings indicate a significant association of 1166 C/A polymorphism of the AT1R gene with increased risk of hypertension in Indian population.
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Affiliation(s)
- M. Prasad
- Department of Biochemistry, Narayana Medical College and Hospital, Chinthareddy Palem, Nellore, Andhra Pradesh 524003 India
| | - D. Rajarajeswari
- Department of Biochemistry, Narayana Medical College and Hospital, Chinthareddy Palem, Nellore, Andhra Pradesh 524003 India
| | - K. Ramlingam
- Department of Biochemistry, Narayana Medical College and Hospital, Chinthareddy Palem, Nellore, Andhra Pradesh 524003 India
| | - R. Viswakumar
- Department of Biochemistry, Narayana Medical College and Hospital, Chinthareddy Palem, Nellore, Andhra Pradesh 524003 India
| | - B. Suneel
- Department of Biochemistry, Narayana Medical College and Hospital, Chinthareddy Palem, Nellore, Andhra Pradesh 524003 India
| | - Jyothi Conjeevaram
- Department of Community Medicine, Narayana Medical College, Nellore, Andhra Pradesh 524003 India
| | - P. Aruna
- Department of Biochemistry, ACSR Government Medical College, Dargamitta, Nellore, Andhra Pradesh 524002 India
| | - Nusrath Fathima
- Central Laboratory for Stem Cell Research & Translational Medicine, Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, Telangana 500058 India
| | - Sandeep Kumar Vishwakarma
- Central Laboratory for Stem Cell Research & Translational Medicine, Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, Telangana 500058 India
| | - Aleem Ahmed Khan
- Central Laboratory for Stem Cell Research & Translational Medicine, Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, Telangana 500058 India
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Dias-Filho CAA, Soares NDJS, Bomfim MRQ, José Dias C, Vidal FCB, Magalhães BC, Ferreira AC, Monteiro SCM, Salvador EP, de Barros CC, Correia PE, Rodrigues B, Mostarda CT. The effect of family history of hypertension and polymorphism of the ACE gene (rs1799752) on cardiac autonomic modulation in adolescents. Clin Exp Pharmacol Physiol 2021; 48:177-185. [PMID: 33090544 DOI: 10.1111/1440-1681.13426] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 10/15/2020] [Accepted: 10/17/2020] [Indexed: 11/27/2022]
Abstract
This study aims to analyze the behaviour of cardiac autonomic modulation in adolescents with a family history of hypertension along with polymorphism of the ACE gene (rs1799752). The study involved 141 adolescents, with a mean age of 14.89, divided into the following six groups: offspring of normotensive parents (ONP): DD, DI and II; and offspring of hypertensive parents (OHP): DD, DI and II. Blood pressure, body composition, family history of hypertension, sleep disorder, and sexual maturation were assessed for the groups' characterization. Afterwards, an electrocardiogram was performed, and oral mucosal cells were collected to analyze heart rate variability and genotypic research of angiotensin-converting enzyme. The main finding of this study was the decrease of vagal action in group OHP (genotype DD) relative to group ONP (genotype II): LF (%), 54.25 ± 3.14 vs 39.33 ± 3.80; HF (%), 45.74 ± 3.14 vs 60.66 ± 3.80; LF/HF, 1.48 ± 0.23 vs 0.68 ± 0.19. The results also showed changes in the variable diastolic blood pressure (DBP) in OHP (genotype DI) to ONP (genotype II) groups: 72.99 ± 2.33 vs 63.27 ± 1.72; and OHP (genotype DI) to ONP (genotype DD) groups. Adolescents with genotype DD and a family history of arterial hypertension present chances in cardiac autonomic modulation, the cardiac parasympathetic modulation is lower in these adolescents in comparison to participants of ONP + II group.
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Affiliation(s)
- Carlos Alberto Alves Dias-Filho
- Laboratório de Adaptações Cardiovasculares ao Exercício - LACORE, Physical Education Department, Federal University of Maranhão, São Luís, Brazil
| | - Nivaldo de Jesus Silva Soares
- Laboratório de Adaptações Cardiovasculares ao Exercício - LACORE, Physical Education Department, Federal University of Maranhão, São Luís, Brazil
| | | | - Carlos José Dias
- Laboratório de Adaptações Cardiorrenais ao Exercício Físico - LACE, Universidade Federal do Maranhão UFMA/Campus Pinheiro, Pinheiro, Brasil
| | | | - Bruna Cruz Magalhães
- Laboratório de Adaptações Cardiovasculares ao Exercício - LACORE, Physical Education Department, Federal University of Maranhão, São Luís, Brazil
| | - Andressa Coelho Ferreira
- Laboratório de Adaptações Cardiovasculares ao Exercício - LACORE, Physical Education Department, Federal University of Maranhão, São Luís, Brazil
| | | | | | | | | | - Bruno Rodrigues
- Laboratory of Cardiovascular Investigation and Exercise (LICE), School of Physical Education, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Cristiano Teixeira Mostarda
- Laboratório de Adaptações Cardiovasculares ao Exercício - LACORE, Physical Education Department, Federal University of Maranhão, São Luís, Brazil
- Physical Education Department, UFMA, São Luís, Brazil
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S Machado IB, Tofanelli MR, Saldanha da Silva AA, Simões E Silva AC. Factors Associated with Primary Hypertension in Pediatric Patients: An Up-to-Date. Curr Pediatr Rev 2021; 17:15-37. [PMID: 33430749 DOI: 10.2174/1573396317999210111200222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND Arterial hypertension in children is considered a common alteration nowadays, mainly because obesity is a growing worldwide problem closely related to increased blood pressure. Childhood hypertension can be classified as primary or secondary, depending on the etiology. Primary or essential hypertension still has its pathophysiology not fully elucidated, and there is no consensus in the literature on most underlying mechanisms. In this review, genetic and environmental factors, including sodium and potassium intake, socioeconomic status, ethnicity, family structure, obesity, sedentary lifestyle, prematurity and low birth weight, prenatal and postnatal exposures are highlighted. OBJECTIVE The present study aimed to perform an update on primary hypertension in childhood, providing clinicians and researchers an overview of the current state of the literature regarding the influence of genetic and environmental factors. METHODS This integrative review searched for articles on genetic and environmental factors related to primary hypertension in pediatric patients. The databases evaluated were PubMed and Scopus. RESULTS The studies have provided insights regarding many genetic and environmental factors, in addition to their association with the pathophysiology of primary hypertension in childhood. Findings corroborated the idea that primary hypertension is a multifactorial disease. Further studies in the pediatric population are needed to elucidate the underlying mechanisms. CONCLUSION The study of primary hypertension in pediatrics has utmost importance for the adoption of preventive measures and the development of more efficient treatments, therefore reducing childhood morbidity and the incidence of cardiovascular diseases and other health consequences later in life.
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Affiliation(s)
- Isabella Barreto S Machado
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Matheus Rampinelli Tofanelli
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Ariadna A Saldanha da Silva
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Ana Cristina Simões E Silva
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
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Epidemiological links between malaria parasitaemia and hypertension: findings from a population-based survey in rural Côte d'Ivoire. J Hypertens 2020; 37:1384-1392. [PMID: 30801386 PMCID: PMC6587219 DOI: 10.1097/hjh.0000000000002071] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Background: Although potential links between malaria parasitaemia and hypertension have been hypothesized, there is paucity of epidemiologic evidence on this link. We investigated in a population-based survey, the association between malaria parasitaemia and hypertension in Ivorian adults. Methods: We estimated the adjusted odds ratios (OR) and 95% confidence intervals (CI) of hypertension in relation to malaria parasitaemia using multinomial regression, in 997 randomly selected adults in the ‘Côte d’Ivoire Dual Burden of Disease Study’ (CoDuBu), in south-central Côte d’Ivoire. We defined malaria parasitaemia as a positive rapid diagnostic test or identification of Plasmodium spp. on microscopy. Using the mean of the last two of three blood pressure (BP) measurements and questionnaire data, we defined hypertension as SBP at least 140 mmHg or DBP at least 90 mmHg or clinician-diagnosed hypertension. Results: Prevalence of malaria parasitaemia and hypertension were 10 and 22%, respectively. Malaria parasitaemia was negatively associated with hypertension in participants with body temperature 36.5 °C or less [OR 0.23 (95% CI 0.06–0.84)]. Contrastingly, microscopic malaria parasitaemia showed positive associations with hypertension in participants with elevated body temperature [>36.5 °C; OR: 2.93 (95% CI 0.94–9.14)]. Participants having microscopic malaria parasitaemia with elevated body temperature had three-fold higher odds of hypertension [OR: 3.37 (95% CI 1.12–10.0)] than malaria parasitaemia-negatives with lower body temperature. Conclusion: Malaria parasitaemia and hypertension are prevalent and seemingly linked comorbidities in African settings. This link may depend on malaria parasitaemia symptomaticity/latency where individuals with more latent/asymptomatic malaria parasitaemia have lower risk of hypertension and those with more acute/symptomatic malaria parasitaemia have a tendency toward higher BP. The cross-sectional nature of the study limited the distinction of short-term BP elevation (interim pathophysiological stress) from hypertension development. Future longitudinal studies considering malaria/hypertension phenotypes and host molecular variations are needed to clarify involved biological mechanisms, toward comorbidity management.
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An Angiotensinogen Gene Polymorphism (rs5050) Is Associated with the Risk of Coronary Artery Aneurysm in Southern Chinese Children with Kawasaki Disease. DISEASE MARKERS 2019; 2019:2849695. [PMID: 30719178 PMCID: PMC6335657 DOI: 10.1155/2019/2849695] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/03/2018] [Accepted: 12/10/2018] [Indexed: 01/05/2023]
Abstract
Background Kawasaki disease (KD) is an acute vasculitis disease that commonly causes acquired heart disease in children. Coronary artery aneurysm (CAA) is a major complication of KD. However, the pathogenesis of KD remains unclear. The results of a genome-wide association study (GWAS) showed that two functional single-nucleotide polymorphisms (SNPs; rs699A>G and rs5050T>G) in the angiotensinogen (AGT) gene were related to cardiovascular disease susceptibility. The purpose of our study was to estimate the relationship between the two GWAS-identified AGT gene polymorphisms and the risk of CAA in Southern Chinese children with KD. Methods We genotyped the two AGT gene polymorphisms (rs699A>G and rs5050T>G) in 760 KD cases and 972 healthy controls. We used the odds ratios (ORs) and 95% confidence intervals (CIs) to estimate the degree of the associations. Results These two AGT gene polymorphisms were not associated with a risk of KD relative to the controls, but after adjusting for sex and age, the carriers of the rs5050G allele with TG/GG vs TT had an adjusted OR = 1.56, 95% CI = 1.01-2.41, and P = 0.044 relative to the carriers of the rs5050TT genotype. The susceptibility to CAA was more predominant in KD patients younger than 12 months old. Conclusions Our results indicate that the AGT gene polymorphism rs5050T>G may increase the risk of CAA in children with KD, especially those who are younger than 12 months. These results need to be verified by a validation study with a larger sample size.
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Development and application of low-cost T-ARMS-PCR assay for AGT and CYP11B1 gene polymorphisms. Mol Biol Rep 2018; 46:443-449. [PMID: 30478747 DOI: 10.1007/s11033-018-4493-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/10/2018] [Indexed: 01/05/2023]
Abstract
Angiotensin II (Ang II: a truncated octapeptide of angiotensinogen, AGT) and 11-β-hydroxylase influence regulation of blood pressure. Dysregulation of Ang II and 11-β-hydroxylase can lead to hypertension and elevate aldosterone levels. Polymorphisms in AGT (encodes AGT) and CYP11B1 (encodes 11-β-hydroxylase) shift the paradigm from physiological to pathological. Currently, various high-throughput techniques are used to genotype these polymorphisms. These techniques require expensive infrastructure and reagents. However, in developing countries, where cost is the main limiting factor, it is not feasible to use expensive techniques. So, the aim of current study was to develop efficient low-cost method for genotyping of cardiovascular disease and hypertension associated polymorphisms of AGT (rs4762, rs5051) and CYP11B1 (rs6410). For this, tetra amplification-refractory mutation system-polymerase chain reaction (T-ARMS-PCR) method was developed and optimized for aforementioned AGT and CYP11B1 gene polymorphisms. Efficiency of T-ARMS-PCR was tested by genotyping 776 human samples. These T-ARMS-PCR assays were also validated by Sanger DNA sequencing, where 100% concordance was found, allowing the efficient use of these T-ARMS-PCR assays for polymorphism genotyping in AGT and CYP11B1 in resource limited settings. T-ARMS-PCR is low-cost, efficient and reliable assay for genotyping of AGT and CYP11B1 gene polymorphisms.
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Bal C, Öztürk A, Çiçek B, Özdemir A, Zararsız G, Ünalan D, Ertürk Zararsız G, Korkmaz S, Göksülük D, Eldem V, İsmailoğulları S, Erdem E, Mazıcıoğlu MM, Kurtoğlu S. The Relationship Between Blood Pressure and Sleep Duration in Turkish Children: A Cross-Sectional Study. J Clin Res Pediatr Endocrinol 2018; 10:51-58. [PMID: 28619699 PMCID: PMC5838373 DOI: 10.4274/jcrpe.4557] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE As in adults, hypertension is also an important risk factor for cardiovascular disease in children. We aimed to evaluate the effect of sleep duration on blood pressure in normal weight Turkish children aged between 11-17 years. METHODS This cross-sectional study was conducted in the primary and secondary schools of the two central and ten outlying districts of Kayseri, Turkey. Subjects were 2860 children and adolescents (1385 boys, 1475 girls). Systolic and diastolic blood pressures were measured according to the recommendations of the Fourth Report of the National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents. Sleep duration was classified as follows: ≤8 hours, 8.1-8.9 hours, 9.0-9.9 hours or ≥10 hours. RESULTS For short sleeper boys and girls (participants with a sleep duration ≤8 h) the prevalence of prehypertension and hypertension was 35.0% and 30.8%, respectively. In univariate binary logistic regression analyses (age-adjusted), each unit increment in sleep duration (hours) in boys and girls, decreased the prehypertension and hypertension risk by 0.89 [odds ratio (OR)] [confidance interval (CI); 0.82-0.98] and 0.88 (OR) (CI; 0.81-0.97), respectively (p<0.05). In multiple binary logistic regression analyses [age- and body mass index (BMI)-adjusted] the location of the school and sleep duration categories were shown to be the most important factors for prehypertension and hypertension in both genders, while household income was the most important factor, only in boys. CONCLUSIONS A sleep duration ≤8 h is an independent risk factor for prehypertension and hypertension in Turkish children aged 11-17 years.
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Affiliation(s)
- Cengiz Bal
- Eskişehir Osmangazi University Faculty of Medicine, Department of Biostatistics, Eskişehir, Turkey
| | - Ahmet Öztürk
- Erciyes University Faculty of Medicine, Department of Biostatistics; Erciyes Teknopark, Turcosa Analytics Solutions Ltd. Co, Kayseri, Turkey
| | - Betül Çiçek
- Erciyes University Faculty of Health Sciences, Department of Nutrition and Dietetics, Kayseri, Turkey,* Address for Correspondence: Erciyes University Faculty of Health Sciences, Department of Nutrition and Dietetics, Kayseri, Turkey Phone: +90 352 207 66 66/28654 E-mail:
| | - Ahmet Özdemir
- Erciyes University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Kayseri, Turkey
| | - Gökmen Zararsız
- Erciyes University Faculty of Medicine, Department of Biostatistics; Erciyes Teknopark, Turcosa Analytics Solutions Ltd. Co, Kayseri, Turkey
| | - Demet Ünalan
- Erciyes University Halil Bayraktar Health Services Vocational College, Kayseri, Turkey
| | - Gözde Ertürk Zararsız
- Erciyes University Faculty of Medicine, Department of Biostatistics; Erciyes Teknopark, Turcosa Analytics Solutions Ltd. Co, Kayseri, Turkey
| | - Selçuk Korkmaz
- Trakya University Faculty of Medicine, Department of Biostatistics, Edirne, Turkey
| | - Dinçer Göksülük
- Hacettepe University Faculty of Medicine, Department of Biostatistics, Ankara, Turkey
| | - Vahap Eldem
- İstanbul University Faculty of Science, Department of Biology, İstanbul, Turkey
| | - Sevda İsmailoğulları
- Erciyes University Faculty of Medicine, Department of Neurology, Kayseri, Turkey
| | - Emine Erdem
- Erciyes University Faculty of Health Sciences, Department of Pediatric Nursing, Kayseri, Turkey
| | - Mümtaz M Mazıcıoğlu
- Erciyes University Faculty of Medicine, Department of Family Medicine, Kayseri, Turkey
| | - Selim Kurtoğlu
- Memorial Hospital, Department of Pediatrics, Kayseri, Turkey
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Abstract
The heritability of hypertension (HTN) is widely recognized and as a result, extensive studies ranging from genetic linkage analyses to genome-wide association studies are actively ongoing to elucidate the etiology of both monogenic and polygenic forms of HTN. Due to the complex nature of essential HTN, however, single genes affecting blood pressure (BP) variability remain difficult to isolate and identify and have rendered the development of single-gene targeted therapies challenging. The roles of other causative factors in modulating BP, such as gene-environment interactions and epigenetic factors, are increasingly being brought to the forefront. In this review, we discuss the various monogenic HTN syndromes and corresponding pathophysiologic mechanisms, the different methodologies employed in genetic studies of essential HTN, the mechanisms for epigenetic modulation of essential HTN, pharmacogenomics and HTN, and finally, recent advances in genetic studies of essential HTN in the pediatric population.
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Affiliation(s)
- Sun-Young Ahn
- Department of Nephrology, Children's National Health System, Washington, DC, United States.,The George Washington University School of Medicine, Washington, DC, United States
| | - Charu Gupta
- Department of Nephrology, Children's National Health System, Washington, DC, United States.,The George Washington University School of Medicine, Washington, DC, United States
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