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Pescatello LS, Schifano ED, Ash GI, Panza GA, Corso LML, Chen MH, Deshpande V, Zaleski A, Cilhoroz B, Farinatti P, Taylor BA, O'Neill RJ, Thompson PD. Deep-targeted sequencing of endothelial nitric oxide synthase gene exons uncovers exercise intensity and ethnicity-dependent associations with post-exercise hypotension. Physiol Rep 2017; 5:e13510. [PMID: 29180482 PMCID: PMC5704084 DOI: 10.14814/phy2.13510] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/28/2017] [Accepted: 10/30/2017] [Indexed: 12/17/2022] Open
Abstract
In previous studies, we found an endothelial nitric oxide synthase gene (NOS3) variant rs2070744 associated with the ambulatory blood pressure (BP) response following bouts of moderate and vigorous intensity acute exercise, termed post-exercise hypotension (PEH). In a validation cohort, we sequenced NOS3 exons for associations with PEH Obese (30.9 ± 3.6 kg.m-2) African American (n = 14) [AF] and Caucasian (n = 9) adults 42.0 ± 9.8 years with hypertension (139.8 ± 10.4/84.6 ± 6.2 mmHg) performed three random experiments: bouts of vigorous and moderate intensity cycling and control. Subjects were attached to an ambulatory BP monitor for 19 h. We performed deep-targeted exon sequencing with the Illumina TruSeq Custom Amplicon kit. Variant genotypes were coded as number of minor alleles (#MA) and selected for additional statistical analysis based upon Bonferonni or Benjamini-Yekutieli multiple testing-corrected P-values under time-adjusted linear models for 19 hourly BP measurements for each subject. After vigorous intensity over 19 h, among NOS3 variants passing multiple testing thresholds, as the #MA increased in rs891512 (P = 6.4E-04), rs867225 (P = 6.5E-04), rs743507 (P = 2.6E-06), and rs41483644 (P = 2.4E-04), systolic (SBP) decreased from 17.5 to 33.7 mmHg; and in rs891512 (P = 9.7E-05), rs867225 (P = 2.6E-05), rs41483644 (P = 1.6E-03), rs3730009 (P = 2.6E-04), and rs77325852 (P = 5.6E-04), diastolic BP decreased from 11.1 mmHg to 20.3 mmHg among AF only. In contrast, after moderate intensity over 19 h in NOS3 rs3918164, as the #MA increased, SBP increased by 16.6 mmHg (P = 2.4E-04) among AF only. NOS3 variants exhibited associations with PEH after vigorous, but not moderate intensity exercise among AF only. NOS3 should be studied further for its effects on PEH in a large, ethnically diverse sample of adults with hypertension to confirm our findings.
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Affiliation(s)
- Linda S Pescatello
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
- Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut
| | | | - Garrett I Ash
- School of Nursing, Yale University, New Haven, Connecticut
| | - Gregory A Panza
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
- Department of Preventive Cardiology, Hartford Hospital, Hartford, Connecticut
| | - Lauren M L Corso
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut
| | - Ved Deshpande
- Department of Statistics, University of Connecticut, Storrs, Connecticut
| | - Amanda Zaleski
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
- Department of Preventive Cardiology, Hartford Hospital, Hartford, Connecticut
| | - Burak Cilhoroz
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
| | - Paulo Farinatti
- Department of Physical Activity Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Beth A Taylor
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
- Department of Preventive Cardiology, Hartford Hospital, Hartford, Connecticut
| | - Rachel J O'Neill
- Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut
| | - Paul D Thompson
- Department of Preventive Cardiology, Hartford Hospital, Hartford, Connecticut
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Wang J, Du S, Wang J, Zhu M, Wen X, Yang W. Association of the lipoprotein lipase gene Ser447Ter polymorphism with hypertension and blood pressure variation: evidence from an updated meta-analysis. Clin Exp Hypertens 2017. [PMID: 28640651 DOI: 10.1080/10641963.2017.1313848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The polymorphism of lipoprotein lipase (LPL) gene Ser447Ter (S447X) has long been linked to hypertension and blood pressure variation, but the established data remained controversial. To better elucidate this inconsistency, a meta-analysis was conducted. We comprehensively searched electronic databases, including Pubmed, EMBASE, China National Knowledge Infrastructure (CNKI), Web of Science, for all literatures with the last update on February 2016. The strength of association was calculated by using odds ratios (ORs) and weighted mean differences (WMDs) with corresponding 95% confidence intervals (CIs). Further stratified analyses, cumulative meta-analysis analysis, and sensitivity analyses were performed. A total of 14 studies (3592 cases and 4643 controls) for hypertension and 14 studies (n = 9254) for blood pressure were included. Overall, significant associations were revealed between S447X polymorphism and hypertension risk using allelic comparison (OR = 0.86, 95%CI 0.77 to 0.96), heterozygote comparison (OR = 0.85, 95%CI 0.75 to 0.96), and the dominant model (OR = 0.85, 95%CI 0.75 to 0.96), especially in Asians. Furthermore, in subgroup analyses restricted to the population-based controls studies, the high-quality studies, and the large sample size studies, these significant associations were still observed. As for blood pressure association, significant reductions of systolic blood pressure (WMD = -1.25 mmHg, 95%CI -2.25 to -0.25 mmHg) and diastolic blood pressure (WMD = -1.91 mmHg, 95%CI -3.25 to -0.56 mmHg) levels were found using dominant model. No publication bias was observed in any comparison model. Therefore, current meta-analysis suggested that the LPL S447X polymorphism is likely to be a protective factor in the development of hypertension.
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Affiliation(s)
- June Wang
- a Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, and Department of Laboratory Medicine in Guangdong Medical University , Dongguan , China
| | - Shenlin Du
- a Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, and Department of Laboratory Medicine in Guangdong Medical University , Dongguan , China
| | - Jiamin Wang
- a Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, and Department of Laboratory Medicine in Guangdong Medical University , Dongguan , China
| | - Man Zhu
- b Department of Clinical Laboratory & Center for Gene Diagnosis , Zhongnan Hospital of Wuhan University , Wuhan , China
| | - Xue Wen
- b Department of Clinical Laboratory & Center for Gene Diagnosis , Zhongnan Hospital of Wuhan University , Wuhan , China
| | - Weiqing Yang
- a Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, and Department of Laboratory Medicine in Guangdong Medical University , Dongguan , China
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Bruneau ML, Johnson BT, Huedo-Medina TB, Larson KA, Ash GI, Pescatello LS. The blood pressure response to acute and chronic aerobic exercise: A meta-analysis of candidate gene association studies. J Sci Med Sport 2015; 19:424-31. [PMID: 26122461 DOI: 10.1016/j.jsams.2015.05.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 05/14/2015] [Accepted: 05/28/2015] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To meta-analyze candidate gene association studies on the change in blood pressure beyond the immediate post-exercise phase after versus before aerobic exercise. DESIGN Meta-analysis. METHODS A systematic search was conducted. Studies retrieved included acute (short-term or postexercise hypotension) or chronic (long-term or training) aerobic exercise interventions; and blood pressure measured before and after aerobic exercise training, or before and after exercise or control under ambulatory conditions by genotype. Effect sizes were determined for genotype and adjusted for sample features. RESULTS Qualifying studies (k=17, n=3524) on average included middle-aged, overweight men (44.2%) and women (55.8%) with prehypertension (134.9±11.7/78.6±9.5mmHg). Training interventions (k=12) were performed at 60.4±12.9% of maximum oxygen consumption (VO2max) for 41.9±12.5minsession(-1), 3.6±1.2daysweek(-1) for 15.7±7.6week; and post-exercise hypotension interventions (k=5) were performed at 53.5±14.4% VO2max for 38.5±5.4minsession(-1). Sample characteristics explained 54.2-59.0% of the variability in the blood pressure change after versus before acute exercise or control under ambulatory conditions, and 57.4-67.1% of the variability in the blood pressure change after versus before training (p<0.001). Only angiotensinogen M235T (rs699) associated with the change in diastolic blood pressure after versus before training (R(2)=0.1%, p=0.05), but this association did not remain statistically significant after adjustment for multiple comparisons. CONCLUSIONS Sample characteristics explained most of the variability in the change of BP beyond the immediate post-exercise phase after versus before acute and chronic aerobic exercise. Angiotensinogen M235T (rs699) was the only genetic variant that associated with the change in diastolic blood pressure after versus before training, accounting for <1% of the variance.
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Affiliation(s)
- Michael L Bruneau
- Department of Exercise Science and Sports Studies, Springfield College, Springfield, MA, United States; Department of Kinesiology, University of Connecticut, Storrs, CT, United States.
| | - Blair T Johnson
- Department of Psychology, University of Connecticut, Storrs, CT, United States
| | - Tania B Huedo-Medina
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States
| | - Kara A Larson
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States
| | - Garrett I Ash
- Department of Kinesiology, University of Connecticut, Storrs, CT, United States
| | - Linda S Pescatello
- Department of Kinesiology, University of Connecticut, Storrs, CT, United States; Institute for Systems Genomics, University of Connecticut, Storrs, CT, United States
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Liu L, Shi X, Bharadwaj KG, Ikeda S, Yamashita H, Yagyu H, Schaffer JE, Yu YH, Goldberg IJ. DGAT1 expression increases heart triglyceride content but ameliorates lipotoxicity. J Biol Chem 2009; 284:36312-36323. [PMID: 19778901 DOI: 10.1074/jbc.m109.049817] [Citation(s) in RCA: 189] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Intracellular lipid accumulation in the heart is associated with cardiomyopathy, yet the precise role of triglyceride (TG) remains unclear. With exercise, wild type hearts develop physiologic hypertrophy. This was associated with greater TG stores and a marked induction of the TG-synthesizing enzyme diacylglycerol (DAG) acyltransferase 1 (DGAT1). Transgenic overexpression of DGAT1 in the heart using the cardiomyocyte- specific alpha-myosin heavy chain (MHC) promoter led to approximately a doubling of DGAT activity and TG content and reductions of approximately 35% in cardiac ceramide, 26% in DAG, and 20% in free fatty acid levels. Cardiac function assessed by echocardiography and cardiac catheterization was unaffected. These mice were then crossed with animals expressing long-chain acyl-CoA synthetase via the MHC promoter (MHC-ACS), which develop lipotoxic cardiomyopathy. MHC-DGAT1XMHC-ACS double transgenic male mice had improved heart function; fractional shortening increased by 74%, and diastolic function improved compared with MHC-ACS mice. The improvement of heart function correlated with a reduction in cardiac DAG and ceramide and reduced cardiomyocyte apoptosis but increased fatty acid oxidation. In addition, the survival of the mice was improved. Our study indicates that TG is not likely to be a toxic lipid species directly, but rather it is a feature of physiologic hypertrophy and may serve a cytoprotective role in lipid overload states. Moreover, induction of DGAT1 could be beneficial in the setting of excess heart accumulation of toxic lipids.
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Affiliation(s)
- Li Liu
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - XiaoJing Shi
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - Kalyani G Bharadwaj
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - Shota Ikeda
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - Haruyo Yamashita
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - Hiroaki Yagyu
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - Jean E Schaffer
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri 63110
| | - Yi-Hao Yu
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032
| | - Ira J Goldberg
- Department of Medicine, Division of Preventive Medicine and Metabolism, Columbia University College of Physicians and Surgeons, New York, New York 10032.
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Bray MS, Hagberg JM, Pérusse L, Rankinen T, Roth SM, Wolfarth B, Bouchard C. The human gene map for performance and health-related fitness phenotypes: the 2006-2007 update. Med Sci Sports Exerc 2009; 41:35-73. [PMID: 19123262 DOI: 10.1249/mss.0b013e3181844179] [Citation(s) in RCA: 293] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This update of the human gene map for physical performance and health-related fitness phenotypes covers the research advances reported in 2006 and 2007. The genes and markers with evidence of association or linkage with a performance or a fitness phenotype in sedentary or active people, in responses to acute exercise, or for training-induced adaptations are positioned on the map of all autosomes and sex chromosomes. Negative studies are reviewed, but a gene or a locus must be supported by at least one positive study before being inserted on the map. A brief discussion on the nature of the evidence and on what to look for in assessing human genetic studies of relevance to fitness and performance is offered in the introduction, followed by a review of all studies published in 2006 and 2007. The findings from these new studies are added to the appropriate tables that are designed to serve as the cumulative summary of all publications with positive genetic associations available to date for a given phenotype and study design. The fitness and performance map now includes 214 autosomal gene entries and quantitative trait loci plus seven others on the X chromosome. Moreover, there are 18 mitochondrial genes that have been shown to influence fitness and performance phenotypes. Thus,the map is growing in complexity. Although the map is exhaustive for currently published accounts of genes and exercise associations and linkages, there are undoubtedly many more gene-exercise interaction effects that have not even been considered thus far. Finally, it should be appreciated that most studies reported to date are based on small sample sizes and cannot therefore provide definitive evidence that DNA sequence variants in a given gene are reliably associated with human variation in fitness and performance traits.
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Affiliation(s)
- Molly S Bray
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX, USA
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Luft FC. Lipoprotein lipase and heart size. J Mol Med (Berl) 2006; 84:109-11. [PMID: 16416314 DOI: 10.1007/s00109-005-0018-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2005] [Indexed: 10/25/2022]
Affiliation(s)
- F C Luft
- Franz Volhard Clinic, HELIOS Kliniken Berlin, Medical Faculty of the Charité, Humboldt University, Wiltbergstrasse 50, 13125, Berlin-Buch, Germany.
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