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Carlos-Escalante JA, Gómez-Flores-Ramos L, Bian X, Perdomo-Pantoja A, de Andrade KC, Mejía-Pérez SI, Cacho-Díaz B, González-Barrios R, Reynoso-Noverón N, Soto-Reyes E, Sánchez-Correa TE, Guerra-Calderas L, Yan C, Chen Q, Castro-Hernández C, Vidal-Millán S, Taja-Chayeb L, Gutiérrez O, Álvarez-Gómez RM, Gómez-Amador JL, Ostrosky-Wegman P, Mohar-Betancourt A, Herrera-Montalvo LA, Corona T, Meerzaman D, Wegman-Ostrosky T. Landscape of Germline Genetic Variants in AGT, MGMT, and TP53 in Mexican Adult Patients with Astrocytoma. Cell Mol Neurobiol 2021; 41:1285-1297. [PMID: 32535722 DOI: 10.1007/s10571-020-00901-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/06/2020] [Indexed: 12/20/2022]
Abstract
Astrocytoma is the most common type of primary brain tumor. The risk factors for astrocytoma are poorly understood; however, germline genetic variants account for 25% of the risk of developing gliomas. In this study, we assessed the risk of astrocytoma associated with variants in AGT, known by its role in angiogenesis, TP53, a well-known tumor suppressor and the DNA repair gene MGMT in a Mexican population. A case-control study was performed in 49 adult Mexican patients with grade II-IV astrocytoma. Sequencing of exons and untranslated regions of AGT, MGMT, and TP53 from was carried in an Ion Torrent platform. Individuals with Mexican Ancestry from the 1000 Genomes Project were used as controls. Variants found in our cohort were then assessed in a The Cancer Genome Atlas astrocytoma pan-ethnic validation cohort. Variants rs1926723 located in AGT (OR 2.74, 1.40-5.36 95% CI), rs7896488 in MGMT (OR 3.43, 1.17-10.10 95% CI), and rs4968187 in TP53 (OR 2.48, 1.26-4.88 95% CI) were significantly associated with the risk of astrocytoma after multiple-testing correction. This is the first study where the AGT rs1926723 variant, TP53 rs4968187, and MGMT rs7896488 were found to be associated with the risk of developing an astrocytoma.
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Affiliation(s)
| | | | - Xiaopeng Bian
- Computational Genomics and Bioinformatics Group, Center for Biomedical Informatics and Information Technology, National Cancer Institute, NIH, Rockville, MD, 20850, USA
| | | | - Kelvin César de Andrade
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD, 20850, USA
| | - Sonia Iliana Mejía-Pérez
- Departamento de Enseñanza, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", 13269, Mexico City, Mexico
- Departamento de Neurocirugía, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suarez", 14269, Mexico City, Mexico
| | - Bernardo Cacho-Díaz
- Unidad de Neurociencia, Instituto Nacional de Cancerología, 14080, Mexico City, Mexico
| | | | - Nancy Reynoso-Noverón
- Dirección de Investigación, Instituto Nacional de Cancerología, 14080, Mexico City, Mexico
| | - Ernesto Soto-Reyes
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa, 05370, Mexico City, Mexico
| | - Thalía Estefanía Sánchez-Correa
- Departamento de Neurocirugía, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suarez", 14269, Mexico City, Mexico
| | - Lissania Guerra-Calderas
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa, 05370, Mexico City, Mexico
| | - Chunhua Yan
- Computational Genomics and Bioinformatics Group, Center for Biomedical Informatics and Information Technology, National Cancer Institute, NIH, Rockville, MD, 20850, USA
| | - Qingrong Chen
- Computational Genomics and Bioinformatics Group, Center for Biomedical Informatics and Information Technology, National Cancer Institute, NIH, Rockville, MD, 20850, USA
| | - Clementina Castro-Hernández
- Unidad de Epidemiología E Investigación Biomédica en Cáncer, Instituto de Investigaciones Biomédicas, UNAM-INCAN, 14080, Mexico City, Mexico
| | - Silvia Vidal-Millán
- Clínica de Cáncer Hereditario, Instituto Nacional de Cancerología, 14080, Mexico City, Mexico
| | - Lucía Taja-Chayeb
- Dirección de Investigación, Instituto Nacional de Cancerología, 14080, Mexico City, Mexico
| | - Olga Gutiérrez
- Dirección de Investigación, Instituto Nacional de Cancerología, 14080, Mexico City, Mexico
| | | | - Juan Luis Gómez-Amador
- Departamento de Neurocirugía, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suarez", 14269, Mexico City, Mexico
| | - Patricia Ostrosky-Wegman
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Alejandro Mohar-Betancourt
- Unidad de Epidemiología E Investigación Biomédica en Cáncer, Instituto de Investigaciones Biomédicas, UNAM-INCAN, 14080, Mexico City, Mexico
| | - Luis Alonso Herrera-Montalvo
- Unidad de Epidemiología E Investigación Biomédica en Cáncer, Instituto de Investigaciones Biomédicas, UNAM-INCAN, 14080, Mexico City, Mexico
- Dirección General, Instituto Nacional de Medicina Genómica, 14610, Mexico City, Mexico
| | - Teresa Corona
- Laboratorio Clínico de Enfermedades Neurodegenerativas, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez", 14269, Mexico City, Mexico
| | - Daoud Meerzaman
- Computational Genomics and Bioinformatics Group, Center for Biomedical Informatics and Information Technology, National Cancer Institute, NIH, Rockville, MD, 20850, USA
| | - Talia Wegman-Ostrosky
- Dirección de Investigación, Instituto Nacional de Cancerología, 14080, Mexico City, Mexico.
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2
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Dungan JR, Qin X, Hurdle M, Haynes CS, Hauser ER, Kraus WE. Genome-Wide Variants Associated With Longitudinal Survival Outcomes Among Individuals With Coronary Artery Disease. Front Genet 2021; 12:661497. [PMID: 34140969 PMCID: PMC8204081 DOI: 10.3389/fgene.2021.661497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/04/2021] [Indexed: 11/30/2022] Open
Abstract
Objective Coronary artery disease (CAD) is an age-associated condition that greatly increases the risk of mortality. The purpose of this study was to identify gene variants associated with all-cause mortality among individuals with clinically phenotyped CAD using a genome-wide screening approach. Approach and Results We performed discovery (n = 684), replication (n = 1,088), and meta-analyses (N = 1,503) for association of genomic variants with survival outcome using secondary data from White participants with CAD from two GWAS sub-studies of the Duke Catheterization Genetics Biorepository. We modeled time from catheterization to death or last follow-up (median 7.1 years, max 12 years) using Cox multivariable regression analysis. Target statistical screening thresholds were p × 10–8 for the discovery phase and Bonferroni-calculated p-values for the replication (p < 5.3 × 10–4) and meta-analysis (p < 1.6 × 10–3) phases. Genome-wide analysis of 785,945 autosomal SNPs revealed two SNPs (rs13007553 and rs587936) that had the same direction of effect across all three phases of the analysis, with suggestive p-value association in discovery and replication and significant meta-analysis association in models adjusted for clinical covariates. The rs13007553 SNP variant, LINC01250, which resides between MYTIL and EIPR1, conferred increased risk for all-cause mortality even after controlling for clinical covariates [HR 1.47, 95% CI 1.17–1.86, p(adj) = 1.07 × 10–3 (discovery), p(adj) = 0.03 (replication), p(adj) = 9.53 × 10–5 (meta-analysis)]. MYT1L is involved in neuronal differentiation. TSSC1 is involved in endosomal recycling and is implicated in breast cancer. The rs587936 variant annotated to DAB2IP was associated with increased survival time [HR 0.65, 95% CI 0.51–0.83, p(adj) = 4.79 × 10–4 (discovery), p(adj) = 0.02 (replication), p(adj) = 2.25 × 10–5 (meta-analysis)]. DAB2IP is a ras/GAP tumor suppressor gene which is highly expressed in vascular tissue. DAB2IP has multiple lines of evidence for protection against atherosclerosis. Conclusion Replicated findings identified two candidate genes for further study regarding association with survival in high-risk CAD patients: novel loci LINC01250 (rs13007553) and biologically relevant candidate DAB2IP (rs587936). These candidates did not overlap with validated longevity candidate genes. Future research could further define the role of common variants in survival outcomes for people with CAD and, ultimately, improve longitudinal outcomes for these patients.
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Affiliation(s)
- Jennifer R Dungan
- Division of Healthcare in Adult Populations, School of Nursing, Duke University, Durham, NC, United States
| | - Xue Qin
- School of Medicine, Duke Molecular Physiology Institute, Duke University, Durham, NC, United States
| | - Melissa Hurdle
- School of Medicine, Duke Molecular Physiology Institute, Duke University, Durham, NC, United States
| | - Carol S Haynes
- School of Medicine, Duke Molecular Physiology Institute, Duke University, Durham, NC, United States
| | - Elizabeth R Hauser
- School of Medicine, Duke Molecular Physiology Institute, Duke University, Durham, NC, United States.,Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, United States.,Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, United States
| | - William E Kraus
- School of Medicine, Duke Molecular Physiology Institute, Duke University, Durham, NC, United States.,Division of Cardiology, Department of Medicine, School of Medicine, Duke University, Durham, NC, United States
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3
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Fan J, Shen Y, Chen B, Xu C, Ye H, Wang J, Zhou W, Sheng Y, Xu F, Yang P. Lack of association between CYP11B2 -344T/C polymorphism and transient ischemic attack in a Chinese population. J Int Med Res 2021; 48:300060520947916. [PMID: 32790508 PMCID: PMC7427132 DOI: 10.1177/0300060520947916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE This study investigated whether the CYP11B2 -344T/C polymorphism is correlated with transient ischemic attack (TIA) susceptibility. METHODS We recruited 100 TIA patients and 100 control subjects and analyzed the CYP11B2 -344T/C polymorphism using restriction fragment length polymorphism (PCR-RFLP). RESULTS The frequency in TIA patients and controls was 42% compared with 48% for TT genotypes, 51% compared with 45% for TC genotypes, and 7% compared with 7% for CC genotype, respectively. Allele frequencies in TIA patients and controls were 67.5% compared with 70.5% for T-allele and 32.5% compared with 29.5% for C-allele, respectively. No association between the CYP11B2 -344T/C polymorphism and TIA was observed in all comparisons. CONCLUSION Our data suggest that there was no association between the CYP11B2 -344T/C polymorphism and TIA in a Chinese population.
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Affiliation(s)
- Jia Fan
- Changshu First People's Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
| | - Yaoliang Shen
- Changshu First People's Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
| | - Bo Chen
- Changshu First People's Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
| | - Chunyang Xu
- Changshu First People's Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
| | - Hongwei Ye
- Changshu First People's Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
| | - Jian Wang
- The Fifth People's Hospital of Changshu, Changshu, Jiangsu, China
| | - Wenjun Zhou
- The Fifth People's Hospital of Changshu, Changshu, Jiangsu, China
| | - Yuefeng Sheng
- Changshu Medical Emergency Center, Changshu, Jiangsu, China
| | - Feng Xu
- Emergency Department, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Peng Yang
- Emergency Department, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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4
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Chanana N, Palmo T, Newman JH, Pasha MAQ. Vascular homeostasis at high-altitude: role of genetic variants and transcription factors. Pulm Circ 2020; 10:2045894020913475. [PMID: 33282179 PMCID: PMC7682230 DOI: 10.1177/2045894020913475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/14/2020] [Indexed: 12/24/2022] Open
Abstract
High-altitude pulmonary edema occurs most frequently in non-acclimatized low landers on exposure to altitude ≥2500 m. High-altitude pulmonary edema is a complex condition that involves perturbation of signaling pathways in vasoconstrictors, vasodilators, anti-diuretics, and vascular growth factors. Genetic variations are instrumental in regulating these pathways and evidence is accumulating for a role of epigenetic modification in hypoxic responses. This review focuses on the crosstalk between high-altitude pulmonary edema-associated genetic variants and transcription factors, comparing high-altitude adapted and high-altitude pulmonary edema-afflicted subjects. This approach might ultimately yield biomarker information both to understand and to design therapies for high-altitude adaptation.
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Affiliation(s)
- Neha Chanana
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Tsering Palmo
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - John H Newman
- Pulmonary Circulation Center, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - M A Qadar Pasha
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Delhi, India.,Indian Council of Medical Research, New Delhi, India
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5
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Angelidis G, Samara M, Papathanassiou M, Satra M, Valotassiou V, Tsougos I, Psimadas D, Tzavara C, Alexiou S, Koutsikos J, Demakopoulos N, Giamouzis G, Triposkiadis F, Skoularigis J, Kollia P, Georgoulias P. Impact of renin-angiotensin-aldosterone system polymorphisms on myocardial perfusion: Correlations with myocardial single photon emission computed tomography-derived parameters. J Nucl Cardiol 2019; 26:1298-1308. [PMID: 29344922 DOI: 10.1007/s12350-017-1181-8] [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] [Received: 11/10/2017] [Accepted: 12/26/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Renin-angiotensin-aldosterone system (RAAS) has an important role in atherosclerosis. We investigated the effects of six RAAS gene polymorphisms on myocardial perfusion. METHODS AND RESULTS We examined 810 patients with known or suspected coronary artery disease (CAD) using stress-rest myocardial single-photon emission computed tomography. Summed stress score (SSS), summed rest score (SRS), summed difference score (SDS), transient ischemic dilation (TID), and lung/heart ratio (LHR) were recorded. The following gene polymorphisms were investigated: angiotensin-converting enzyme (ACE) insertion/deletion (I/D), angiotensinogen (AGT) M235T and T174M, angiotensin II type 1 receptor (AT1R) A1166C, renin (REN) C5312T, and angiotensin II type 2 receptor (AT2R) C3123A. The heterozygotes or homozygotes on ACE D allele were 7.54 times more likely to have abnormal SSS, while the AGT (T174M) heterozygotes were 5.19 times more likely to have abnormal SSS. The homozygotes of ACE D had significantly higher values on TID and LHR, while the AGT (T174M) heterozygotes had higher values on TID. The AT1R heterozygotes had greater odds for having SSS ≥ 3. The patients carried AT1R homozygosity of C allele had significantly higher values on TID, while heterozygotes of AT1R had significantly higher values on LHR. CONCLUSIONS Among the polymorphisms investigated, ACE D allele had the strongest association with abnormal myocardial perfusion.
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Affiliation(s)
- George Angelidis
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece.
- Department of Nuclear Medicine, Army Share Fund Hospital (417 NIMTS), Athens, Greece.
| | - Maria Samara
- Department of Pathology, University of Thessaly, Larissa, Greece
| | | | - Maria Satra
- Department of Biology & Genetics, University of Thessaly, Larissa, Greece
| | - Varvara Valotassiou
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
| | - Ioannis Tsougos
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
| | - Dimitrios Psimadas
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
| | - Chara Tzavara
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
| | - Sotiria Alexiou
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
| | - John Koutsikos
- Department of Nuclear Medicine, Army Share Fund Hospital (417 NIMTS), Athens, Greece
| | - Nikolaos Demakopoulos
- Department of Nuclear Medicine, Army Share Fund Hospital (417 NIMTS), Athens, Greece
| | - Gregory Giamouzis
- Department of Cardiology, University Hospital of Larissa, Larissa, Greece
| | | | - John Skoularigis
- Department of Cardiology, University Hospital of Larissa, Larissa, Greece
| | - Panagoula Kollia
- Department of Genetics & Biotechnology, Faculty of Biology, National & Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Georgoulias
- Department of Nuclear Medicine, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
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6
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Zhou Y, Zhang R, Wang G, Wang A, Zhong C, Zhang M, Li H, Xu T, Zhang Y. Coexistence effect of hypertension and angiotensin II on the risk of coronary heart disease: a population-based prospective cohort study among Inner Mongolians in China. Curr Med Res Opin 2019; 35:1473-1478. [PMID: 30917708 DOI: 10.1080/03007995.2019.1601430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: To investigate the coexistence effect of hypertension and angiotensin II on the risk of coronary heart disease based on a prospective study in an Inner Mongolian population of China. Methods: The participants were categorized into four subgroups according to hypertension status and median of angiotensin II level. Incident coronary heart disease (CHD) was defined as study outcome. A Cox proportional hazard model was used to compute hazard ratios (HRs) and 95% confidence intervals (CIs) of CHD across the four subgroups after adjusting for important confounding factors. Results: During an average 9.2 years of follow-up, a total of 75 incident CHD cases were observed. The cumulative incidence rates of CHD among normotensives with angiotensin II ≤49 pg/mL, normotensives with angiotensin II >49 pg/mL, hypertensives with angiotensin II ≤49 pg/mL and hypertensives with angiotensin II >49 pg/mL were 1.76%, 1.50%, 4.71% and 5.62%, respectively (log-rank test, p < .001). Compared to the normotensives, the multivariable adjusted HRs (95% CI) of CHD with hypertensives and Ang II >49 pg/mL were 2.43 (1.41-4.17) and 1.30 (0.81-2.07), respectively. Furthermore, compared to normotensives with angiotensin II ≤49 pg/mL, the multivariate-adjusted HRs (95% CIs) of CHD for normotensives with angiotensin II >49 pg/mL, hypertensives with angiotensin II ≤49 pg/mL and hypertensives with angiotensin II >49 pg/mL were 1.33 (0.60-2.91), 2.35 (1.16-4.76) and 3.00 (1.52-5.92), respectively (p for trend <.05). The hypertensives with angiotensin II >49 pg/mL were at the highest risk of CHD. Conclusions: Hypertension not angiotensin II was an independent risk factor for incident CHD, but the coexistence of both hypertension and high angiotensin II level further increased risk of incident CHD among the Inner Mongolians.
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Affiliation(s)
- Yiting Zhou
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Rui Zhang
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Guangli Wang
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Aili Wang
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Chongke Zhong
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Mingzhi Zhang
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Hongmei Li
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Tan Xu
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
| | - Yonghong Zhang
- a Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases , Medical College of Soochow University , Suzhou , China
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7
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Marks ECA, Wilkinson TM, Frampton CM, Skelton L, Pilbrow AP, Yandle TG, Pemberton CJ, Doughty RN, Whalley GA, Ellis CJ, Troughton RW, Owen MC, Pattinson NR, Cameron VA, Richards AM, Gieseg SP, Palmer BR. Plasma levels of soluble VEGF receptor isoforms, circulating pterins and VEGF system SNPs as prognostic biomarkers in patients with acute coronary syndromes. BMC Cardiovasc Disord 2018; 18:169. [PMID: 30111293 PMCID: PMC6094571 DOI: 10.1186/s12872-018-0894-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 07/23/2018] [Indexed: 12/17/2022] Open
Abstract
Background Development of collateral circulation in coronary artery disease is cardio-protective. A key process in forming new blood vessels is attraction to occluded arteries of monocytes with their subsequent activation as macrophages. In patients from a prospectively recruited post-acute coronary syndromes cohort we investigated the prognostic performance of three products of activated macrophages, soluble vascular endothelial growth factor (VEGF) receptors (sFlt-1 and sKDR) and pterins, alongside genetic variants in VEGF receptor genes, VEGFR-1 and VEGFR-2. Methods Baseline levels of sFlt-1 (VEGFR1), sKDR (VEGFR2) and pterins were measured in plasma samples from subgroups (n = 513; 211; 144, respectively) of the Coronary Disease Cohort Study (CDCS, n = 2067). DNA samples from the cohort were genotyped for polymorphisms from the VEGFR-1 gene SNPs (rs748252 n = 2027, rs9513070 n = 2048) and VEGFR-2 gene SNPs (rs2071559 n = 2050, rs2305948 n = 2066, rs1870377 n = 2042). Results At baseline, levels of sFlt-1 were significantly correlated with age, alcohol consumption, NTproBNP, BNP and other covariates relevant to cardiovascular pathophysiology. Total neopterin levels were associated with alcohol consumption at baseline. 7,8 dihydroneopterin was associated with BMI. The A allele of VEGFR-2 variant rs1870377 was associated with higher plasma sFlt-1 and lower levels of sKDR at baseline. Baseline plasma sFlt-1 was univariately associated with all cause mortality with (p < 0.001) and in a Cox’s proportional hazards regression model sFlt-1 and pterins were both associated with mortality independent of established predictors (p < 0.027). Conclusions sFlt-1 and pterins may have potential as prognostic biomarkers in acute coronary syndromes patients. Genetic markers from VEGF system genes warrant further investigation as markers of levels of VEGF system components in these patients. Trial registration Australian New Zealand Clinical Trials Registry. ACTRN12605000431628. 16 September 2005, Retrospectively registered. Electronic supplementary material The online version of this article (10.1186/s12872-018-0894-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Edward C A Marks
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand.,School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Tom M Wilkinson
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Chris M Frampton
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Lorraine Skelton
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Anna P Pilbrow
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Tim G Yandle
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Chris J Pemberton
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Robert N Doughty
- Department of Medicine, Faculty of Medicine and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Gillian A Whalley
- Department of Medicine, Faculty of Medicine and Health Sciences, University of Auckland, Auckland, New Zealand.,Department of Medicine, Dunedin School of Medicine, University of Otago, Auckland, New Zealand
| | - Chris J Ellis
- Department of Medicine, Faculty of Medicine and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Richard W Troughton
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - Maurice C Owen
- Canterbury Scientific Ltd, 71 Whiteleigh Ave, Christchurch, New Zealand
| | - Neil R Pattinson
- Canterbury Scientific Ltd, 71 Whiteleigh Ave, Christchurch, New Zealand
| | - Vicky A Cameron
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand
| | - A Mark Richards
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand.,Cardiovascular Research Institute, National University of Singapore, Singapore, Singapore
| | - Steven P Gieseg
- School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Barry R Palmer
- Christchurch Heart institute, Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand. .,School of Health Sciences, College of Health, Massey University Wellington, Wellington, New Zealand.
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8
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Kolovou V, Diakoumakou O, Papazafiropoulou AK, Katsiki N, Fragopoulou E, Vasiliadis I, Degiannis D, Duntas L, Antonopoulou S, Kolovou G. Biomarkers and Gene Polymorphisms in Members of Long- and Short-lived Families: A Longevity Study. Open Cardiovasc Med J 2018; 12:59-70. [PMID: 30159092 PMCID: PMC6080062 DOI: 10.2174/1874192401812010059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 01/11/2023] Open
Abstract
Background The influence of biomarkers in human lifespan has been investigated but with no clear results yet. Materials and methods Lipids, Uric Acid (UA), Adiponectin (ADIPOQ), Insulin-like Growth Factor (IGF-1), cholesteryl ester transfer protein (CETP) and angiotensin-converting enzyme (ACE) proteins, as well as CETP, ADIPOQ, insulin-like growth factor binding protein-3 (IGFBP3) and ACE-gene polymorphisms were evaluated in 149 Greek individuals. The Long-Lived Families (LON) (n=84) comprised of 3 generations: long-lived aged ≥90 years (P), offspring (FL1) and their grandchildren (FL2), while the Short-Lived Families (EAD) (n=65) where both parents died <75 years, comprised of 2 generations: middle-aged (FD1) and children (FD2). Results Serum CETP and IGF-1 levels were lower, whereas AdipoQ concentrations were higher in P compared with FL1 and FL2 members (CETP: p = 0.03 for both comparisons; IGF-1 p < 0.001 for both comparisons and ADIPOQ: p = 0.001 and p = 0.004, respectively). Furthermore, serum triglycerides, UA and glucose concentrations were higher in FD1 compared with FD2 subjects (p=0.001, 0.02 and ≤0.001, respectively). In FD2 and FL2, CETP levels were lower in individuals with B2B2 compared with B1B1 genotype (p=0.007). Additionally, ACE concentrations were higher in individuals with DD compared with II genotype in both Families (p=0.001). After adjustment for age and gender, CETP levels were lower in P and FL2 individuals with B2B2 compared with the B1B1 genotype (p=0.004 and 0.007, respectively). Conclusion Increase serum TGs, UA and GL concentrations were higher in the middle-aged individuals compared with their children in families independently of their lifespan. The serum adiponectin concentration was the highest in the oldest old individuals implying beneficial influence on lifespan. Independently of family's lifespan history, the youngest individuals with CETPB2B2 genotype, compared with individuals with CETPB1B1 genotypes, had lower serum CETP concentrations. The knowledge of the unfavourable gene(s)influencing human lifespan may be helpful in encouraging individuals to follow healthier lifestyle habits and better control their high-risk biomarkers.
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Affiliation(s)
- Vana Kolovou
- Molecular Immunology Laboratory, Onassis Cardiac Surgery Center, Athens, Greece.,Department of Science Nutrition-Dietetics, Harokopio University, Athens, Greece
| | - Olga Diakoumakou
- Cardiology Department, Onassis Cardiac Surgery Center, Athens, Greece
| | | | - Niki Katsiki
- 2 Propedeutic Department of Internal Medicine, Hippokration University Hospital, Thessaloniki, Greece
| | | | | | - Dimitris Degiannis
- Molecular Immunology Laboratory, Onassis Cardiac Surgery Center, Athens, Greece
| | - Leonidas Duntas
- Evgenideion Hospital, Unit of Endocrinology Diabetes and Metabolism, University of Athens, Athens, Greece
| | | | - Genovefa Kolovou
- Cardiology Department, Onassis Cardiac Surgery Center, Athens, Greece
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Case-control association study of polymorphisms in the angiotensinogen and angiotensin-converting enzyme genes and coronary artery disease and systemic artery hypertension in African-Brazilians and Caucasian-Brazilians. J Genet 2016; 95:63-9. [PMID: 27019433 DOI: 10.1007/s12041-015-0599-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The rennin-angiotensin-aldosterone system (RAAS) is a critical pathway in regulating blood pressure and salt/water homeostasis, possessing an intimate relationship with the development of systemic artery hypertension (SAH). Once hypertension is considered a risk factor for coronary artery disease (CAD), the RAAS is also related to this pathology. This investigation aimed to analyse if the frequencies of AGT M235T (rs699) and ACE I/D (rs4646994) polymorphisms are associated with CAD and SAH in African-Brazilians and Caucasian-Brazilians. In this study we analysed 714 subjects who underwent coronary angiography to detect obstructive lesions and CAD, as well as blood pressure measurement and SAH, grouped according to ethnicity: 266 African-Brazilians and 448 Caucasian-Brazilians. Among CAD and SAH cases and controls, the genotype and allele frequencies of ACE I/D polymorphism were similar in both ethnic groups. The AGT 235TT genotype and 235T allele frequencies were higher in SAH cases (32%, 54.7%) versus controls in Caucasian-Brazilians (19.8%, 46.4%; P = 0.038, P = 0.031, respectively). The AGT 235TT (OR = 1.8; P = 0.028) demonstrated to be an independent factor risk in a multivariate logistic regression increasing SAH risk in Caucasians but not in African-Brazilians. In summary, AGT M235T polymorphism was associated with SAH risk in Caucasian-Brazilians, and no association was detected with CAD. No association was also observed in ACE I/D polymorphism either in CAD or SAH in African-Brazilians and Caucasian-Brazilians.
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10
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Dungan JR, Qin X, Horne BD, Carlquist JF, Singh A, Hurdle M, Grass E, Haynes C, Gregory SG, Shah SH, Hauser ER, Kraus WE. Case-Only Survival Analysis Reveals Unique Effects of Genotype, Sex, and Coronary Disease Severity on Survivorship. PLoS One 2016; 11:e0154856. [PMID: 27187494 PMCID: PMC4871369 DOI: 10.1371/journal.pone.0154856] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 04/20/2016] [Indexed: 01/05/2023] Open
Abstract
Survival bias may unduly impact genetic association with complex diseases; gene-specific survival effects may further complicate such investigations. Coronary artery disease (CAD) is a complex phenotype for which little is understood about gene-specific survival effects; yet, such information can offer insight into refining genetic associations, improving replications, and can provide candidate genes for both mortality risk and improved survivorship in CAD. Building on our previous work, the purpose of this current study was to: evaluate LSAMP SNP-specific hazards for all-cause mortality post-catheterization in a larger cohort of our CAD cases; and, perform additional replication in an independent dataset. We examined two LSAMP SNPs—rs1462845 and rs6788787—using CAD case-only Cox proportional hazards regression for additive genetic effects, censored on time-to-all-cause mortality or last follow-up among Caucasian subjects from the Catheterization Genetics Study (CATHGEN; n = 2,224) and the Intermountain Heart Collaborative Study (IMHC; n = 3,008). Only after controlling for age, sex, body mass index, histories of smoking, type 2 diabetes, hyperlipidemia and hypertension (HR = 1.11, 95%CI = 1.01–1.22, p = 0.032), rs1462845 conferred significantly increased hazards of all-cause mortality among CAD cases. Even after controlling for multiple covariates, but in only the primary cohort, rs6788787 conferred significantly improved survival (HR = 0.80, 95% CI = 0.69–0.92, p = 0.002). Post-hoc analyses further stratifying by sex and disease severity revealed replicated effects for rs1462845: even after adjusting for aforementioned covariates and coronary interventional procedures, males with severe burden of CAD had significantly amplified hazards of death with the minor variant of rs1462845 in both cohorts (HR = 1.29, 95% CI = 1.08–1.55, p = 0.00456; replication HR = 1.25, 95% CI = 1.05–1.49, p = 0.013). Kaplan-Meier curves revealed unique cohort-specific genotype effects on survival. Additional analyses demonstrated that the homozygous risk genotype (‘A/A’) fully explained the increased hazard in both cohorts. None of the post-hoc analyses in control subjects were significant for any model. This suggests that genetic effects of rs1462845 on survival are unique to CAD presence. This represents formal, replicated evidence of genetic contribution of rs1462845 to increased risk for all-cause mortality; the contribution is unique to CAD case status and specific to males with severe burden of CAD.
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Affiliation(s)
- Jennifer R. Dungan
- Duke University School of Nursing, Durham, NC, United States of America
- * E-mail:
| | - Xuejun Qin
- Duke University Department of Medicine, Durham, NC, United States of America
| | - Benjamin D. Horne
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - John F. Carlquist
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - Abanish Singh
- Behavioral Medicine Research Center, Duke University Medical Center, Durham, NC, United States of America
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, United States of America
| | - Melissa Hurdle
- Duke University Department of Medicine, Durham, NC, United States of America
| | - Elizabeth Grass
- Duke University Department of Medicine, Durham, NC, United States of America
| | - Carol Haynes
- Duke University Department of Medicine, Durham, NC, United States of America
| | - Simon G. Gregory
- Duke University Department of Medicine, Durham, NC, United States of America
| | - Svati H. Shah
- Duke University Department of Medicine, Durham, NC, United States of America
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, United States of America
| | - Elizabeth R. Hauser
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, United States of America
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC, United States of America
| | - William E. Kraus
- Duke University Department of Medicine, Durham, NC, United States of America
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, United States of America
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11
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Xu Q, Jensen DD, Peng H, Feng Y. The critical role of the central nervous system (pro)renin receptor in regulating systemic blood pressure. Pharmacol Ther 2016; 164:126-34. [PMID: 27113409 DOI: 10.1016/j.pharmthera.2016.04.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 01/24/2023]
Abstract
The systemic renin-angiotensin system (RAS) has long been recognized as a critically important system in blood pressure (BP) regulation. However, extensive evidence has shown that a majority of RAS components are also present in many tissues and play indispensable roles in BP regulation. Here, we review evidence that RAS components, notably including the newly identified (pro)renin receptor (PRR), are present in the brain and are essential for the central regulation of BP. Binding of the PRR to its ligand, prorenin or renin, increases BP and promotes progression of cardiovascular diseases in an angiotensin II-dependent and -independent manner, establishing the PRR a promising antihypertensive drug target. We also review the existing PRR blockers, including handle region peptide and PRO20, and propose a rationale for blocking prorenin/PRR activation as a therapeutic approach that does not affect the actions of the PRR in vacuolar H(+)-ATPase and development. Finally, we summarize categories of currently available antihypertensive drugs and consider future perspectives.
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Affiliation(s)
- Quanbin Xu
- Department of Pharmacology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, NV, USA; Department of Physiology & Cell Biology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, NV, USA
| | - Dane D Jensen
- Department of Pharmacology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, NV, USA; Department of Physiology & Cell Biology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, NV, USA
| | - Hua Peng
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huangzhong University of Sciences and Technology, Wuhan, China
| | - Yumei Feng
- Department of Pharmacology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, NV, USA; Department of Physiology & Cell Biology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, NV, USA.
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12
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Salminen LE, Schofield PR, Pierce KD, Zhao Y, Luo X, Wang Y, Laidlaw DH, Cabeen RP, Conturo TE, Tate DF, Akbudak E, Lane EM, Heaps JM, Bolzenius JD, Baker LM, Cagle LM, Paul RH. Neuromarkers of the common angiotensinogen polymorphism in healthy older adults: A comprehensive assessment of white matter integrity and cognition. Behav Brain Res 2015; 296:85-93. [PMID: 26318936 DOI: 10.1016/j.bbr.2015.08.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 08/18/2015] [Accepted: 08/20/2015] [Indexed: 10/23/2022]
Abstract
The common angiotensinogen (AGT) M268T polymorphism (rs699; historically referred to as M235T) has been identified as a significant risk factor for cerebrovascular pathologies, yet it is unclear if healthy older adults carrying the threonine amino acid variant have a greater risk for white matter damage in specific fiber tracts. Further, the impact of the threonine variant on cognitive function remains unknown. The present study utilized multiple indices of diffusion tensor imaging (DTI) and neuropsychological assessment to examine the integrity of specific white matter tracts and cognition between individuals with homozygous genotypes of M268T (MetMet n=27, ThrThr n=27). Differences in subcortical hyperintensity (SH) volume were also examined between groups. Results indicated that the threonine variant was associated with significantly reduced integrity in the superior longitudinal fasciculus (SLF) and the cingulate gyrus segment of the cingulum bundle (cingulum CG) compared to those with the methionine variant, and poorer cognitive performance on tests of attention/processing speed and language. Despite these associations, integrity of these tracts did not significantly mediate relationships between cognition and genetic status, and SH did not differ significantly between groups. Collectively our results suggest that the threonine variant of M268T is a significant risk factor for abnormalities in specific white matter tracts and cognitive domains in healthy older adults, independent of SH burden.
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Affiliation(s)
- Lauren E Salminen
- University of Missouri-St. Louis, Department of Psychological Sciences, 1 University Blvd., Stadler Hall 442A, St. Louis, MO 63121, USA.
| | - Peter R Schofield
- Neuroscience Research Australia, Barker Street Randwick, Sydney, NSW 2031, Australia; School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Kerrie D Pierce
- Neuroscience Research Australia, Barker Street Randwick, Sydney, NSW 2031, Australia
| | - Yi Zhao
- Brown University, Department of Biostatistics and Center for Statistical Sciences, Providence, RI 02912, USA
| | - Xi Luo
- Brown University, Department of Biostatistics and Center for Statistical Sciences, Providence, RI 02912, USA
| | - Youdan Wang
- Brown University, Department of Biostatistics and Center for Statistical Sciences, Providence, RI 02912, USA
| | - David H Laidlaw
- Brown University, Computer Science Department, Providence, RI 02912, USA
| | - Ryan P Cabeen
- Brown University, Computer Science Department, Providence, RI 02912, USA
| | - Thomas E Conturo
- Washington University School of Medicine, Mallinckrodt Institute of Radiology, 510 S. Kingshighway, St. Louis, MO 63110, USA
| | - David F Tate
- Missouri Institute of Mental Health,4633 World Parkway Circle, Berkeley, MO 63134-3115, USA
| | - Erbil Akbudak
- Washington University School of Medicine, Mallinckrodt Institute of Radiology, 510 S. Kingshighway, St. Louis, MO 63110, USA
| | - Elizabeth M Lane
- Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville, TN 37232, USA
| | - Jodi M Heaps
- Missouri Institute of Mental Health,4633 World Parkway Circle, Berkeley, MO 63134-3115, USA
| | - Jacob D Bolzenius
- University of Missouri-St. Louis, Department of Psychological Sciences, 1 University Blvd., Stadler Hall 442A, St. Louis, MO 63121, USA
| | - Laurie M Baker
- University of Missouri-St. Louis, Department of Psychological Sciences, 1 University Blvd., Stadler Hall 442A, St. Louis, MO 63121, USA
| | - Lee M Cagle
- University of Missouri-St. Louis, Department of Psychological Sciences, 1 University Blvd., Stadler Hall 442A, St. Louis, MO 63121, USA
| | - Robert H Paul
- University of Missouri-St. Louis, Department of Psychological Sciences, 1 University Blvd., Stadler Hall 442A, St. Louis, MO 63121, USA; Missouri Institute of Mental Health,4633 World Parkway Circle, Berkeley, MO 63134-3115, USA
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13
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Do AN, Irvin MR, Lynch AI, Claas SA, Boerwinkle E, Davis BR, Ford CE, Eckfeldt JH, Tiwari HK, Limdi NA, Arnett DK. The effects of angiotensinogen gene polymorphisms on cardiovascular disease outcomes during antihypertensive treatment in the GenHAT study. Front Pharmacol 2014; 5:210. [PMID: 25278896 PMCID: PMC4165277 DOI: 10.3389/fphar.2014.00210] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 08/27/2014] [Indexed: 11/18/2022] Open
Abstract
Previous studies have reported that risk of cardiovascular morbidity and mortality substantially increases in hypertensive patients, especially among those with inadequate blood pressure control. Two common antihypertensive drug classes including thiazide diuretics and angiotensin-converting enzyme (ACE) inhibitors affect different enzymes in the renin-angiotensin-aldosterone system (RAAS). In the RAAS, angiotensinogen is converted into angiotensin II which increases blood pressure through vasoconstriction. Using a case-only design with 3448 high-risk hypertensive individuals from the Genetics of Hypertension Associated Treatment (GenHAT) study, we examined whether seven single nucleotide polymorphisms (SNPs) in the angiotensinogen gene (AGT) interact with three classes of antihypertensive drugs including chlorthalidone (a thiazide diuretic), lisinopril (an ACE inhibitor), and amlodipine (a calcium channel blocker) to modify the risk of incident coronary heart disease (CHD) and heart failure (HF) among Caucasian and African American participants, separately. We found no gene by treatment interactions to be statistically significant after correction for multiple testing. However, some suggestive results were found. African American participants with the minor allele of rs11122576 had over two-fold higher risk of CHD when using chlorthalidone compared to using amlodipine, or lisinopril compared to amlodipine (p = 0.006 and p = 0.01, respectively). Other marginal associations are also reported among both race groups. The findings reported here suggest that rs11122576 could contribute to future personalization of antihypertensive treatment among African Americans though more studies are needed.
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Affiliation(s)
- Anh N Do
- Department of Epidemiology, University of Alabama at Birmingham Birmingham, AL, USA
| | - Marguerite R Irvin
- Department of Epidemiology, University of Alabama at Birmingham Birmingham, AL, USA
| | - Amy I Lynch
- Department of Epidemiology, University of Alabama at Birmingham Birmingham, AL, USA
| | - Steven A Claas
- Department of Epidemiology, University of Alabama at Birmingham Birmingham, AL, USA
| | - Eric Boerwinkle
- Division of Epidemiology, School of Public Health, University of Texas Health Science Center at Houston Houston, TX, USA
| | - Barry R Davis
- Division of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston Houston, TX, USA
| | - Charles E Ford
- Division of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston Houston, TX, USA
| | - John H Eckfeldt
- Department of Laboratory Medicine and Pathology, University of Minnesota Minneapolis, MN, USA
| | - Hemant K Tiwari
- Department of Biostatistics, University of Alabama at Birmingham Birmingham, AL, USA
| | - Nita A Limdi
- Department of Neurology, University of Alabama at Birmingham Birmingham, AL, USA
| | - Donna K Arnett
- Department of Epidemiology, University of Alabama at Birmingham Birmingham, AL, USA
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14
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Wang X, Yuan B, Dong W, Yang B, Yang Y, Lin X, Gong G. Humid heat exposure induced oxidative stress and apoptosis in cardiomyocytes through the angiotensin II signaling pathway. Heart Vessels 2014; 30:396-405. [PMID: 24898407 DOI: 10.1007/s00380-014-0523-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 05/09/2014] [Indexed: 02/07/2023]
Abstract
Exposure to humid heat stress leads to the initiation of serious physiological dysfunction that may result in heat-related diseases, including heat stroke, heat cramp, heat exhaustion, and even death. Increasing evidences have shown that the humid heat stress-induced dysfunction of the cardiovascular system was accompanied with severe cardiomyocyte injury; however, the precise mechanism of heat stress-induced injury of cardiomyocyte remains unknown. In the present study, we hypothesized that humid heat stress promoted oxidative stress through the activation of angiotensin II (Ang II) in cardiomyocytes. To test our hypothesis, we established mouse models of humid heat stress. Using the animal models, we found that Ang II levels in serum were significantly up-regulated and that the Ang II receptor AT1 was increased in cardiomyocytes. The antioxidant ability in plasma and heart tissues which was detected by the ferric reducing/antioxidant power assay was also decreased with the increased ROS production under humid heat stress, as was the expression of antioxidant genes (SOD2, HO-1, GPx). Furthermore, we demonstrated that the Ang II receptor antagonist, valsartan, effectively relieved oxidative stress, blocked Ang II signaling pathway and suppressed cardiomyocyte apoptosis induced by humid heat stress. In addition, overexpression of antioxidant genes reversed cardiomyocyte apoptosis induced by Ang II. Overall, these results implied that humid heat stress increased oxidative stress and caused apoptosis of cardiomyocytes through the Ang II signaling pathway. Thus, targeting the Ang II signaling pathway may provide a promising approach for the prevention and treatment of cardiovascular diseases caused by humid heat stress.
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Affiliation(s)
- Xiaowu Wang
- Center of Cardiovascular Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, 510010, China
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15
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Relationship of renin-angiotensin-aldosterone system polymorphisms and phenotypes to mortality in Chinese coronary atherosclerosis patients. Sci Rep 2014; 4:4600. [PMID: 24722536 PMCID: PMC3983573 DOI: 10.1038/srep04600] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 03/12/2014] [Indexed: 11/09/2022] Open
Abstract
We performed a large, long-term cohort study to evaluate the association of renin-angiotensin-aldosterone system gene polymorphisms and baseline phenotypes to all-cause mortality among patients with angiographically confirmed coronary atherosclerosis. The study included 1075 subjects who underwent coronary angiography. Patients were genotyped for eight polymorphisms (rs4343, rs5186, rs5182, rs5049, rs5051, rs699, rs4762, and rs1799998), and their baseline plasma angiotensin II and aldosterone levels were measured. The interval between baseline and follow-up time-points ranged from 6.39 to 9.59 years. The results of multivariate regression analysis further indicated that high baseline angiotensin II levels (1.226 (1.024–1.468), p = 0.027) were independently associated with all-cause death. Therefore, we found that an increased baseline plasma angiotensin II level was associated with higher long-term all-cause mortality, even after correcting for established cardiovascular risk factors.
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16
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Pi Y, Zhang LL, Chang K, Guo L, Liu Y, Li BH, Cao XJ, Liao SQ, Gao CY, Li JC. Lack of an association between CYP11B2 C-344T gene polymorphism and ischemic stroke: a meta-analysis of 7,710 subjects. PLoS One 2013; 8:e68842. [PMID: 23950878 PMCID: PMC3738569 DOI: 10.1371/journal.pone.0068842] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 06/03/2013] [Indexed: 01/11/2023] Open
Abstract
Background The association between aldosterone synthase (CYP11B2) C-344T gene polymorphism and ischemic stroke remains controversial and ambiguous. To better explain the association between CYP11B2 polymorphism and ischemic stroke risk, a meta-analysis was performed. Methods Based on comprehensive searches of Medline, Embase, Web of Science, CNKI and CBM databases, we identified and abstracted outcome data from all articles to evaluate the association between CYP11B2 polymorphism and ischemic stroke. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were performed in all genetic models. Fixed or random effects model was separately used depending on the heterogeneity between studies. Publication bias was tested by Begg's funnel plot and Egger's regression test. Results A total of 12 studies including 3,620 ischemic stroke cases and 4,090 controls were identified. There was no statistical evidence of association between CYP11B2 C-344T polymorphism and ischemic stroke in all genetic models (allelic model: OR = 1.19, 95% CI = 0.95–1.49; additive model: OR = 1.43, 95% CI = 0.91–2.27; dominant model: OR = 1.30, 95% CI = 0.89–1.89; and recessive model: OR = 1.24, 95% CI = 0.96–1.60). On subgroup analysis by ethnicity, similarly results were found in both Asians and non-Asians. For Asians, the combined ORs and 95% CIs were (allelic model: OR = 1.07, 95% CI = 0.87–1.32; additive model: OR = 1.15, 95% CI = 0.77–1.71; dominant model: OR = 1.13, 95% CI = 0.92–1.38; and recessive model: OR = 1.09, 95% CI = 0.84–1.40). For none-Asians, the combined ORs and 95% CIs were (allelic model: OR = 1.58, 95% CI = 0.90–2.76; additive model: OR = 2.37, 95% CI = 0.79–7.05; dominant model: OR = 1.79, 95% CI = 0.77–4.19; and recessive model: OR = 1.80, 95% CI = 0.96–3.36). Conclusion The present meta-analysis suggested that CYP11B2 C-344T polymorphism was unlikely contribute to ischemic stroke susceptibility.
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Affiliation(s)
- Yan Pi
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Li-li Zhang
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Kai Chang
- Department of Clinical Laboratory Medicine, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Lu Guo
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Yun Liu
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Bing-hu Li
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xiao-jie Cao
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Shao-qiong Liao
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Chang-yue Gao
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Jing-cheng Li
- Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
- * E-mail:
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