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Li L, Meng H, Wang X, Ruan J, Tian X, Meng F. Low ZCCHC9 Gene Expression in Peripheral Blood May Be an Acute Myocardial Infarction Genetic Molecular Marker in Patients with Stable Coronary Atherosclerotic Disease. Int J Gen Med 2022; 15:1795-1804. [PMID: 35210844 PMCID: PMC8863191 DOI: 10.2147/ijgm.s346335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/25/2022] [Indexed: 12/11/2022] Open
Abstract
Purpose Patients and Methods Results Conclusion
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Affiliation(s)
- Lihong Li
- Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China
| | - Heyu Meng
- Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China
| | - Xue Wang
- Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China
| | - Jianjun Ruan
- Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China
| | - Xiaomin Tian
- Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China
| | - Fanbo Meng
- Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China
- Correspondence: Fanbo Meng, Department of Cardiology, The Third Hospital of Jilin University, Changchun, People’s Republic of China, Tel +86-15948346855, Fax + 86-431-84995228, Email
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CUPRAC-Reactive Advanced Glycation End Products as Prognostic Markers of Human Acute Myocardial Infarction. Antioxidants (Basel) 2021; 10:antiox10030434. [PMID: 33799852 PMCID: PMC7999086 DOI: 10.3390/antiox10030434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 01/12/2023] Open
Abstract
Cardiovascular disorders, especially acute coronary syndromes, are among the leading causes of mortality worldwide, and advanced glycation end products (AGEs) are associated with cardiovascular disease and serve as biomarkers for diagnosis and prediction. In this study, we investigated the utility of AGEs as prognostic biomarkers for acute myocardial infarction (AMI). We measured AGEs in serum samples of AMI patients (N = 27) using the cupric ion reducing antioxidant capacity (CUPRAC) method on days 0, 2, 14, 30, and 90 after AMI, and the correlation of serum AGE concentration and post-AMI duration was determined using Spearman's correlation analysis. Compared to total serum protein, the level of CUPRAC reactive AGEs was increased from 0.9 to 2.1 times between 0-90 days after AMI incident. Furthermore, the glycation pattern and Spearman's correlation analysis revealed four dominant patterns of AGE concentration changes in AMI patients: stable AGE levels (straight line with no peak), continuous increase, single peak pattern, and multimodal pattern (two or more peaks). In conclusion, CUPRAC-reactive AGEs can be developed as a potential prognostic biomarker for AMI through long-term clinical studies.
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Ramezanpour N, Nasiri M, Akbarpour OR. Association of rs4618210A>G variant in PLCL2 gene with myocardial infarction: A case-control study in Iran. J Cardiovasc Thorac Res 2021; 12:303-306. [PMID: 33510879 PMCID: PMC7828755 DOI: 10.34172/jcvtr.2020.49] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 10/20/2020] [Indexed: 12/21/2022] Open
Abstract
Introduction: Myocardial infarction (MI) is the leading cause of death all over the world. The pivotal roles of Phospholipase C like 2 gene (PLCL2) in calcium homeostasis and immune responses make this gene as a potential candidate for its role in MI pathogenesis. The present study was undertaken to investigate whether rs4618210A>G polymorphism in PLCL2 gene contribute to MI etiology.
Methods: A hospital-based case-control study with 600 subjects, including 300 MI patients and 300controls, was conducted. Genotyping of PLCL2 rs4618210 polymorphism was performed using amplification refractory mutation system-polymerase chain reaction (ARMS PCR) method. Data were analyzed using logistic regression analysis.
Results: No significant association was found between the PLCL2 rs4618210 alleles and MI risk.However, a significantly increased risk of MI was observed among carriers of the AG genotype (OR= 1.91; 95% CI = 1.24 - 2.93; P = 0.003) compared with AA homozygote. In a dominant mode of inheritance for G allele (GG + AG vs. AA), the frequency of the carriers of at least one G allele was higher in cases compared to controls (OR= 1.56; 95% CI: 1.03 – 2.36; P = 0.037).
Conclusion: Our study provided further evidence that PLCL2 gene polymorphism may serve as a prognostic marker for MI.
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Affiliation(s)
- Najmeh Ramezanpour
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Mahboobeh Nasiri
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Omid Reza Akbarpour
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
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Škrlec I, Milić J, Steiner R. The Impact of the Circadian Genes CLOCK and ARNTL on Myocardial Infarction. J Clin Med 2020; 9:jcm9020484. [PMID: 32050674 PMCID: PMC7074039 DOI: 10.3390/jcm9020484] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 02/07/2023] Open
Abstract
The circadian rhythm regulates various physiological mechanisms, and its disruption can promote many disorders. Disturbance of endogenous circadian rhythms enhances the chance of myocardial infarction (MI), showing that circadian clock genes could have a crucial function in the onset of the disease. This case-control study was performed on 1057 participants. It was hypothesized that the polymorphisms of one nucleotide (SNP) in three circadian clock genes (CLOCK, ARNTL, and PER2) could be associated with MI. Statistically significant differences, estimated by the Chi-square test, were found in the distribution of alleles and genotypes between MI and no-MI groups of the CLOCK (rs6811520 and rs13124436) and ARNTL (rs3789327 and rs12363415) genes. According to the results of the present study, the polymorphisms in the CLOCK and ARNTL genes could be related to MI.
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Affiliation(s)
- Ivana Škrlec
- Histology, Genetics, Cellular, and Molecular Biology Laboratory, Department of Biology and Chemistry, Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, HR-31000 Osijek, Croatia
- Correspondence:
| | - Jakov Milić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Josipa Huttlera 4, HR-31000 Osijek, Croatia
| | - Robert Steiner
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Josipa Huttlera 4, HR-31000 Osijek, Croatia
- Clinical Department of Cardiovascular Diseases and Intensive Care, Clinic for Internal Medicine, University Hospital Osijek, Josipa Huttlera 4, HR-31000 Osijek, Croatia
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Bhattacharya D, Bhattacharya S. Effects of gene–environment and gene–gene interactions in case-control studies: A novel Bayesian semiparametric approach. BRAZ J PROBAB STAT 2020. [DOI: 10.1214/18-bjps413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Škrlec I, Milic J, Heffer M, Peterlin B, Wagner J. Genetic variations in circadian rhythm genes and susceptibility for myocardial infarction. Genet Mol Biol 2018; 41:403-409. [PMID: 29767668 PMCID: PMC6082246 DOI: 10.1590/1678-4685-gmb-2017-0147] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 10/22/2017] [Indexed: 02/07/2023] Open
Abstract
Disruption of endogenous circadian rhythms has been shown to increase the risk of developing myocardial infarction (MI), suggesting that circadian genes might play a role in determining disease susceptibility. We conducted a case-control study on 200 patients hospitalized due to MI and 200 healthy controls, investigating the association between MI and single nucleotide polymorphisms (SNPs) in four circadian genes (ARNTL, CLOCK, CRY2, and PER2). The variants of all four genes were chosen based on their previously reported association with cardiovascular risk factors, which have a major influence on the occurrence of myocardial infarction. Statistically significant differences, assessed through Chi-square analysis, were found in genotype distribution between cases and controls of the PER2 gene rs35333999 (p=0.024) and the CRY2 gene rs2292912 (p=0.028); the corresponding unadjusted odds ratios, also significant, were respectively OR=0.49 (95% CI 0.26-0.91) and OR=0.32 (95% CI 0.11-0.89). Our data suggest that genetic variability in the CRY2 and PER2 genes might be associated with myocardial infarction.
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Affiliation(s)
- Ivana Škrlec
- University of OsijekUniversity of OsijekDepartment of Medical Biology and
GeneticsCroatiaDepartment of Medical Biology and Genetics,
Faculty of Medicine, J. J. Strossmayer University of Osijek,
Croatia
- University of OsijekUniversity of OsijekFaculty of Dental Medicine and
HealthCroatiaFaculty of Dental Medicine and Health, J.
J. Strossmayer University of Osijek, Croatia
- Send correspondence to Ivana Škrlec. Department of Medical Biology
and Genetics, Faculty of Medicine, Josipa Huttlera 4, 31000 Osijek, Croatia.
E-mail:
| | - Jakov Milic
- University of OsijekUniversity of OsijekDepartment of Medical Biology and
GeneticsCroatiaDepartment of Medical Biology and Genetics,
Faculty of Medicine, J. J. Strossmayer University of Osijek,
Croatia
| | - Marija Heffer
- University of OsijekUniversity of OsijekDepartment of Medical Biology and
GeneticsCroatiaDepartment of Medical Biology and Genetics,
Faculty of Medicine, J. J. Strossmayer University of Osijek,
Croatia
| | - Borut Peterlin
- University Medical Center
LjubljanaUniversity Medical Center
LjubljanaClinical Institute of Medical
GeneticsSloveniaClinical Institute of Medical Genetics,
University Medical Center Ljubljana, Slovenia
| | - Jasenka Wagner
- University of OsijekUniversity of OsijekDepartment of Medical Biology and
GeneticsCroatiaDepartment of Medical Biology and Genetics,
Faculty of Medicine, J. J. Strossmayer University of Osijek,
Croatia
- University of OsijekUniversity of OsijekFaculty of Dental Medicine and
HealthCroatiaFaculty of Dental Medicine and Health, J.
J. Strossmayer University of Osijek, Croatia
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Association of DD genotype of angiotensin-converting enzyme gene (I/D) polymorphism with hypertension among a North Indian population. J Community Genet 2017; 9:51-55. [PMID: 28770441 DOI: 10.1007/s12687-017-0321-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 07/10/2017] [Indexed: 12/30/2022] Open
Abstract
Hypertension, a major risk factor for cardiovascular diseases, is among the leading causes of morbidity and mortality worldwide. Genetic predisposition to the risk of developing hypertension due to angiotensin-converting enzyme (ACE) gene insertion(I)/deletion(D) polymorphism (through altered serum ACE activity) is well documented among various populations. The present study investigated the possible association between ACE (DD) genotype and hypertension using a nested case-control study design including 451 individuals (of either sex in the age group 30-65 years) from a rural North Indian population practicing agriculture and lacto-vegetarianism. Blood Pressure was classified using JNC-7 criterion. Age- and sex-matched individuals were selected from normotensive (N-122), pre-hypertensive (N-123), hypertensive not on medication (N-122), and hypertensive on medication (N-84) categories. Amplification of DNA and genotyping of PCR product was done using standard protocols. From the analysis, comparatively higher frequency of individuals with DD genotype in the hypertensive category was observed, indicating a possible relation between DD genotype and hypertension. The odds ratio analysis revealed 2.225 (1.13-4.37)-fold significant increased risk for hypertension among cases, validating the vulnerability of individuals with DD genotype towards hypertension. Thus, the present study highlights the increased risk for developing hypertension due to ACE DD genotype in the studied population.
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Sotos-Prieto M, Baylin A, Campos H, Qi L, Mattei J. Lifestyle Cardiovascular Risk Score, Genetic Risk Score, and Myocardial Infarction in Hispanic/Latino Adults Living in Costa Rica. J Am Heart Assoc 2016; 5:e004067. [PMID: 27998913 PMCID: PMC5210435 DOI: 10.1161/jaha.116.004067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 11/08/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND A lifestyle cardiovascular risk score (LCRS) and a genetic risk score (GRS) have been independently associated with myocardial infarction (MI) in Hispanics/Latinos. Interaction or joint association between these scores has not been examined. Thus, our aim was to assess interactive and joint associations between LCRS and GRS, and each individual lifestyle risk factor, on likelihood of MI. METHODS AND RESULTS Data included 1534 Costa Rican adults with nonfatal acute MI and 1534 matched controls. The LCRS used estimated coefficients as weights for each factor: unhealthy diet, physical inactivity, smoking, elevated waist:hip ratio, low/high alcohol intake, low socioeconomic status. The GRS included 14 MI-associated risk alleles. Conditional logistic regressions were used to calculate adjusted odds ratios. The odds ratios for MI were 2.72 (2.33, 3.17) per LCRS unit and 1.13 (95% CI 1.06, 1.21) per GRS unit. A significant joint association for highest GRS tertile and highest LCRS tertile and odds of MI was detected (odds ratio=5.43 [3.71, 7.94]; P<1.00×10-7), compared to both lowest tertiles. The odds ratios were 1.74 (1.22, 2.49) under optimal lifestyle and unfavorable genetic profile, and 5.02 (3.46, 7.29) under unhealthy lifestyle but advantageous genetic profile. Significant joint associations were observed for the highest GRS tertile and the highest of each lifestyle component risk category. The interaction term was nonsignificant (P=0.33). CONCLUSIONS Lifestyle risk factors and genetics are jointly associated with higher odds of MI among Hispanics/Latinos. Individual and combined lifestyle risk factors showed stronger associations. Efforts to improve lifestyle behaviors could help prevent MI regardless of genetic susceptibility.
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Affiliation(s)
- Mercedes Sotos-Prieto
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Ana Baylin
- Departments of Epidemiology and Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI
| | - Hannia Campos
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Centro de Investigación e Innovación en Nutrición Translacional y Salud, Universidad Hispanoamericana, San José, Costa Rica
| | - Lu Qi
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA
| | - Josiemer Mattei
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
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Liu C, Yang J, Han W, Zhang Q, Shang X, Li X, Lu F, Liu X. Polymorphisms in ApoB gene are associated with risk of myocardial infarction and serum ApoB levels in a Chinese population. Int J Clin Exp Med 2015; 8:16571-16577. [PMID: 26629186 PMCID: PMC4659074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 09/02/2015] [Indexed: 06/05/2023]
Abstract
Myocardial infarction (MI) is a serious result of coronary artery disease. Recent data from clinical trials have showed that the risk of MI was associated with high plasma apolipoprotein B (apoB) levels. Mutations in ApoB gene were also found to be associated with plasma lipid levels. The aim of this study is to evaluate the effect of ApoB polymorphisms on the risk of MI and plasma apoB levels in a Chinese population. Eight polymorphisms (rs676210, rs679899, rs3791980, rs2854725, rs11676704, rs512535, rs12720841 and rs2678379) in ApoB gene were genotyped in a case-control study in China, including 550 MI cases and 550 healthy controls. Carriers of GG genotype of rs676210 had significant increased risk of MI [odd ratio (OR) = 1.93, 95% confidence interval (CI): 1.23-3.03] compared to carriers of AA genotype. Haplotype analysis also showed that GTTGG (rs676210-rs2854725-rs11676704-rs3791980-rs2678379) haplotype had significant increased risk of MI (OR = 2.82, 95% CI: 1.49-5.33) compared with ATTGA haplotype. Furthermore, apoB rs676210 and rs2678379 polymorphisms were significantly associated with plasma levels of apoB in healthy controls (P = 0.01 and 0.02). Our findings indicated that ApoB mutations may be associated with the risk of MI and plasma ApoB levels in healthy controls in Chinese population.
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Affiliation(s)
- Changqing Liu
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Jing Yang
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Wei Han
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Qi Zhang
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Xiaoming Shang
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Xia Li
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Feng Lu
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
| | - Xiaokun Liu
- Department of Cardiology, Gongren Hospital Tangshan 063000, Hebei, China
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Cardena MMSG, Ribeiro-Dos-Santos AK, Santos SEB, Mansur AJ, Bernardez-Pereira S, Santos PCJL, Pereira AC, Fridman C. Mitochondrial and genomic ancestry are associated with etiology of heart failure in Brazilian patients. J Hum Hypertens 2015; 30:120-3. [PMID: 25947276 DOI: 10.1038/jhh.2015.39] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 03/25/2015] [Accepted: 03/31/2015] [Indexed: 01/19/2023]
Abstract
There is a high prevalence of heart failure (HF) in the general population, but it is more common in black people. We evaluated the association between genomic ancestry and mitochondrial haplogroups (mt-haplogroups) with HF etiology in 503 Brazilian patients. We elicited Mt-haplogroups by analyzing the control region of mitochondrial DNA, and genomic ancestry, by using 48 autosomal insertion-deletion ancestry informative markers. Hypertensive (28.6%, n=144) and ischemic (28.4%, n=143) etiologies of HF were the most prevalent herein. Our results showed that 233 individuals (46.3%) presented African mitochondrial (mt)-haplogroups, and the major contribution in the genomic ancestry analysis was the European ancestry (57.5% (±22.1%)). African mt-haplogroups were positively associated with a diagnosis of hypertensive cardiomyopathy (odds ratio, OR 1.55, confidence interval, CI 95% 1.04-2.44, P=0.04) when compared with European mt-haplogroups. Regarding the genomic ancestry, the African ancestry variant had higher risks (OR 7.84, 95% CI 2.81-21.91, P<0.001), whereas the European ancestry variant had lower risks (OR 0.14, 95% CI 0.04-5.00, P<0.001) for developing the hypertensive etiology. In addition, European ancestry showed an OR of 4.05 (CI 95% 1.53-10.74, P=0.005), whereas African ancestry showed an OR of 0.17 (CI 95% 0.06-0.48, P=0.001) for developing ischemic etiology. In conclusion, this study supports the importance of using ancestry informative markers and mitochondrial DNA to study the genetics of complex diseases in admixed populations to improve the management, treatment and prevention of these illnesses. Therefore, the ancestry informative markers and mt-haplogroups could provide new biomarkers to be associated with HF etiologies and be used as a premise for more specific management.
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Affiliation(s)
- M M S G Cardena
- Department of Legal Medicine, Ethics and Occupational Health, Medical School, University of São Paulo, São Paulo, Brazil
| | - A K Ribeiro-Dos-Santos
- Laboratory of Human Genetics and Medicine, Federal University of Pará, Belém, Pará, Brazil
| | - S E B Santos
- Laboratory of Human Genetics and Medicine, Federal University of Pará, Belém, Pará, Brazil
| | - A J Mansur
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, Medical School, University of São Paulo, São Paulo, Brazil
| | - S Bernardez-Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, Medical School, University of São Paulo, São Paulo, Brazil.,Fluminense Federal University, Rio de Janeiro, Rio de Janeiro, Brazil
| | - P C J L Santos
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, Medical School, University of São Paulo, São Paulo, Brazil
| | - A C Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, Medical School, University of São Paulo, São Paulo, Brazil
| | - C Fridman
- Department of Legal Medicine, Ethics and Occupational Health, Medical School, University of São Paulo, São Paulo, Brazil
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Lin Y, Sibanda VL, Zhang HM, Hu H, Liu H, Guo AY. MiRNA and TF co-regulatory network analysis for the pathology and recurrence of myocardial infarction. Sci Rep 2015; 5:9653. [PMID: 25867756 PMCID: PMC4394890 DOI: 10.1038/srep09653] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 03/16/2015] [Indexed: 12/15/2022] Open
Abstract
Myocardial infarction (MI) is a leading cause of death in the world and many genes are involved in it. Transcription factor (TFs) and microRNAs (miRNAs) are key regulators of gene expression. We hypothesized that miRNAs and TFs might play combinatory regulatory roles in MI. After collecting MI candidate genes and miRNAs from various resources, we constructed a comprehensive MI-specific miRNA-TF co-regulatory network by integrating predicted and experimentally validated TF and miRNA targets. We found some hub nodes (e.g. miR-16 and miR-26) in this network are important regulators, and the network can be severed as a bridge to interpret the associations of previous results, which is shown by the case of miR-29 in this study. We also constructed a regulatory network for MI recurrence and found several important genes (e.g. DAB2, BMP6, miR-320 and miR-103), the abnormal expressions of which may be potential regulatory mechanisms and markers of MI recurrence. At last we proposed a cellular model to discuss major TF and miRNA regulators with signaling pathways in MI. This study provides more details on gene expression regulation and regulators involved in MI progression and recurrence. It also linked up and interpreted many previous results.
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Affiliation(s)
- Ying Lin
- Hubei Bioinformatics &Molecular Imaging Key Laboratory, Department of Biomedical Engineering, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Vusumuzi Leroy Sibanda
- Hubei Bioinformatics &Molecular Imaging Key Laboratory, Department of Biomedical Engineering, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hong-Mei Zhang
- Hubei Bioinformatics &Molecular Imaging Key Laboratory, Department of Biomedical Engineering, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hui Hu
- Hubei Bioinformatics &Molecular Imaging Key Laboratory, Department of Biomedical Engineering, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hui Liu
- Hubei Bioinformatics &Molecular Imaging Key Laboratory, Department of Biomedical Engineering, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - An-Yuan Guo
- Hubei Bioinformatics &Molecular Imaging Key Laboratory, Department of Biomedical Engineering, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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Hebebrand J, Hinney A, Knoll N, Volckmar AL, Scherag A. Molecular genetic aspects of weight regulation. DEUTSCHES ARZTEBLATT INTERNATIONAL 2013; 110:338-44. [PMID: 23762205 DOI: 10.3238/arztebl.2013.0338] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 01/07/2013] [Indexed: 01/08/2023]
Abstract
BACKGROUND Family and twin studies have empirically revealed a 40% to 70% heritability of body-mass index, yet only a few hereditary factors have been identified to date that increase the risk of being overweight. METHODS We present the current state of molecular genetic research on obesity with a selective review of the literature. RESULTS A number of monogenic recessive mutations causing obesity have been identified, but these are rare. Various dominant mutations of the melanocortin-4 receptor gene are found in about 1% to 4% of all markedly obese persons. Current molecular genetic research focuses on the identification of common DNA variants affecting body weight; the genetic material of hundreds of thousands of people from around the world has now been investigated in genome-wide association studies. More than 30 variants conferring an increased risk have been identified, most of which are single nucleotide polymorphisms (SNPs) of no immediately clear functional significance. On average, these variants raise body weight by 500 g (range, 180 to 1400 g). Aside from SNPs, variations in the number of copies of specific DNA sequences have also been linked to obesity, as well as to subnormal weight. All the hereditary factors that have been identified to date account for about 5% of the variability of BMI. Extrapolation yields figures ranging from 10% to 15%. CONCLUSIONS The amount of genetic variability seen to date at the DNA level accounts only for a small fraction of the inter-individual variability of BMI. Obesity is thought to be a largely hereditary condition; the fact that its genetic basis has not yet been demonstrated may be due to various genetic or experimental factors.
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Affiliation(s)
- Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, LVR-Klinikum Essen, University of Duisburg-Essen, Wickenburgstrasse 21, Essen, Germany.
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Rathmann W, Scheidt-Nave C, Roden M, Herder C. Type 2 diabetes: prevalence and relevance of genetic and acquired factors for its prediction. DEUTSCHES ARZTEBLATT INTERNATIONAL 2013; 110:331-7. [PMID: 23762204 PMCID: PMC3673039 DOI: 10.3238/arztebl.2013.0331] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 01/08/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND The epidemiology of type 2 diabetes in Germany is of major societal interest, as is the question of the predictive value of genetic and acquired risk factors. METHODS We present clinically relevant aspects of these topics on the basis of a selective review of pertinent literature retrieved by a PubMed search that centered on population-based studies. RESULTS The German Health Interview and Examination Survey for Adults (Studie zur Gesundheit Erwachsener in Deutschland [DEGS1], 2008-2011) revealed that diabetes was diagnosed in 7.2% of the population aged 18 to 79 years (women 7.4%, men 7.0%). These figures are two percentage points higher than those found in the preceding national survey (1998). The percentage of cases that were not captured by these surveys is estimated at 2% to 7% depending on the method. Independently of personal factors (the individual's life style), it seems that living in a disadvantaged region characterized by high unemployment, air pollution, and poor infrastructure raises the risk of diabetes. Moreover, type 2 diabetes has a substantial hereditary component. More than 60 genetic regions have been identified to date that affect the risk of type 2 diabetes, yet all of them together account for only 10% to 15% of the genetic background of the disease. CONCLUSION The prevalence of type 2 diabetes in Germany has risen in recent years. The discovery of new genetic variants that confer a higher risk of developing the disease has improved our understanding of insulin secretion in diabetes pathogenesis rather than the prediction of individual diabetes risk ("personalized medicine").
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Affiliation(s)
- Wolfgang Rathmann
- Institute of Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf
| | | | - Michael Roden
- Department of Endocrinology and Diabetology, Heinrich-Heine-Universität Düsseldorf
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf
| | - Christian Herder
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf
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Whitehead NS, Hammond JA, Williams MA, Huggins W, Hoover S, Hamilton CM, Ramos EM, Junkins HA, Harlan WR, Hogue CJ. The PhenX Toolkit pregnancy and birth collections. Ann Epidemiol 2012; 22:753-8. [PMID: 22954959 DOI: 10.1016/j.annepidem.2012.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 08/03/2012] [Accepted: 08/07/2012] [Indexed: 11/16/2022]
Abstract
PURPOSE Pregnancy and childbirth are normal conditions, but complications and adverse outcomes are common. Both genetic and environmental factors influence the course of pregnancy. Genetic epidemiologic research into pregnancy outcomes could be strengthened by the use of common measures, which would allow data from different studies to be combined or compared. Here, we introduce perinatal researchers to the PhenX Toolkit and the Collections related to pregnancy and childbirth. METHODS The Pregnancy and Birth Collections were drawn from measures in the PhenX Tooklit. The lead author selected a list of measures for each Collection, which was reviewed by the remaining authors and revised on the basis of their comments. We chose the measures we thought were most relevant for perinatal research and had been linked most strongly to perinatal outcomes. RESULTS The Pregnancy and Birth Health Conditions Collection includes 24 measures related to pregnancy and fertility history, maternal complications, and infant complications. The Pregnancy and Birth Outcome Risk Factors Collection includes 43 measures of chemical, medical, psychosocial, and personal factors associated with pregnancy outcomes. CONCLUSIONS The biological complexity of pregnancy and its sensitivity to environmental and genomic influences suggest that multidisciplinary approaches are needed to generate new insights or practical interventions. To fully exploit new research methods and resources, we encourage the biomedical research community to adopt standard measures to facilitate pooled or meta-analyses.
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Neckář J, Šilhavy J, Zídek V, Landa V, Mlejnek P, Šimáková M, Seidman JG, Seidman C, Kazdová L, Klevstig M, Novák F, Vecka M, Papoušek F, Houštěk J, Drahota Z, Kurtz TW, Kolář F, Pravenec M. CD36 overexpression predisposes to arrhythmias but reduces infarct size in spontaneously hypertensive rats: gene expression profile analysis. Physiol Genomics 2012; 44:173-82. [PMID: 22128087 PMCID: PMC3289117 DOI: 10.1152/physiolgenomics.00083.2011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
CD36 fatty acid translocase plays a key role in supplying heart with its major energy substrate, long-chain fatty acids (FA). Previously, we found that the spontaneously hypertensive rat (SHR) harbors a deletion variant of Cd36 gene that results in reduced transport of long-chain FA into cardiomyocytes and predisposes the SHR to cardiac hypertrophy. In the current study, we analyzed the effects of mutant Cd36 on susceptibility to ischemic ventricular arrhythmias and myocardial infarction in adult SHR-Cd36 transgenic rats with wild-type Cd36 compared with age-matched SHR controls. Using an open-chest model of coronary artery occlusion, we found that SHR-Cd36 transgenic rats showed profound arrhythmogenesis resulting in significantly increased duration of tachyarrhythmias (207 ± 48 s vs. 55 ± 21 s, P < 0.05), total number of premature ventricular complexes (2,623 ± 517 vs. 849 ± 250, P < 0.05) and arrhythmia score (3.86 ± 0.18 vs. 3.13 ± 0.13, P < 0.001). On the other hand, transgenic SHR compared with SHR controls showed significantly reduced infarct size (52.6 ± 4.3% vs. 72.4 ± 2.9% of area at risk, P < 0.001). Similar differences were observed in isolated perfused hearts, and the increased susceptibility of transgenic SHR to arrhythmias was abolished by reserpine, suggesting the involvement of catecholamines. To further search for possible molecular mechanisms of altered ischemic tolerance, we compared gene expression profiles in left ventricles dissected from 6-wk-old transgenic SHR vs. age-matched controls using Illumina-based sequencing. Circadian rhythms and oxidative phosphorylation were identified as the top KEGG pathways, while circadian rhythms, VDR/RXR activation, IGF1 signaling, and HMGB1 signaling were the top IPA canonical pathways potentially important for Cd36-mediated effects on ischemic tolerance. It can be concluded that transgenic expression of Cd36 plays an important role in modulating the incidence and severity of ischemic and reperfusion ventricular arrhythmias and myocardial infarct size induced by coronary artery occlusion. The proarrhythmic effect of Cd36 transgene appears to be dependent on adrenergic stimulation.
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Affiliation(s)
- Jan Neckář
- Institute of Physiology, Academy of Sciences of the Czech Republic, Czech Republic
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