1
|
Úbeda N, Carson BP, García-González Á, Aguilar-Ros A, Díaz-Martínez ÁE, Venta R, Terrados N, O'Gorman DJ, Iglesias-Gutiérrez E. Muscular contraction frequency does not affect plasma homocysteine concentration in response to energy expenditure- and intensity-matched acute exercise in sedentary males. Appl Physiol Nutr Metab 2017; 43:107-112. [PMID: 28910538 DOI: 10.1139/apnm-2017-0265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Acute exercise seems to increase total plasma homocysteine (tHcy); since this variable associated with cardiovascular risk, it is important to understand the determinants of its response to all types of exercise. The aim of this study was to examine the impact of cycling at 2 different rates of muscle contraction on the complete tHcy kinetics. Eight young sedentary males were required to complete 2 isocaloric (400 kcal) acute exercise trials at 50% peak oxygen uptake on separate occasions at 50 or 80 rpm. Blood samples were drawn at different points before (4 h before exercise and immediately before exercise), during (10, 20, 30, 45, and 60 min during exercise), and after exercise (immediately and 19 h after exercise). Dietary and lifestyle factors were controlled during the research. Maximum tHcy occurred during exercise for both conditions (50 rpm: 11.4 ± 2.7 μmol·L-1; 80 rpm: 10.8 ± 3.2 μmol·L-1). From this point onwards tHcy declined until the cessation of exercise and continued descending below pre-exercise values at 19 h postexercise (p < 0.05). No hyperhomocysteinemia were observed at any sampling point in both trials. In conclusion, the different muscular contraction frequency during exercise has no impact on tHcy during an acute bout of exercise in sedentary individuals, when at least 400 kcal are spent during exercise and the nutritional status for folate, B12, and B6 is adequate. This information is relevant to further inform healthy exercise prescription, not only in terms of duration and intensity of exercise, but also taking into account frequency of contraction.
Collapse
Affiliation(s)
- Natalia Úbeda
- a Department of Pharmaceutical Sciences and Health, Universidad San Pablo-CEU, CEU Universities, 28668 Boadilla del Monte, Madrid, Spain
| | - Brian P Carson
- b Physical Education and Sport Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Ángela García-González
- a Department of Pharmaceutical Sciences and Health, Universidad San Pablo-CEU, CEU Universities, 28668 Boadilla del Monte, Madrid, Spain
| | - Antonio Aguilar-Ros
- a Department of Pharmaceutical Sciences and Health, Universidad San Pablo-CEU, CEU Universities, 28668 Boadilla del Monte, Madrid, Spain
| | | | - Rafael Venta
- d Service of Biochemistry, Hospital San Agustín, Avilés 33401, Spain.,e Department of Biochemistry and Molecular Biology, University of Oviedo, Oviedo 33006, Spain
| | - Nicolás Terrados
- f Department of Functional Biology, University of Oviedo, Oviedo 33006, Spain.,g Regional Centre of Sport Medicine, Fundación Deportiva Municipal, Avilés 33401, Spain
| | - Donal J O'Gorman
- h National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland.,i 3U Diabetes Consortium and School of Health and Human Performance, Dublin City University, Dublin 9, Ireland
| | | |
Collapse
|
2
|
Benser J, Valtueña J, Ruiz JR, Mielgo-Ayuso J, Breidenassel C, Vicente-Rodriguez G, Ferrari M, Widhalm K, Manios Y, Sjöström M, Molnar D, Gómez-Martínez S, Kafatos A, Palacios G, Moreno LA, Castillo MJ, Stehle P, González-Gross M. Impact of physical activity and cardiovascular fitness on total homocysteine concentrations in European adolescents: The HELENA study. J Nutr Sci Vitaminol (Tokyo) 2015; 61:45-54. [PMID: 25994139 DOI: 10.3177/jnsv.61.45] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We examined the association of physical activity (PA), cardiovascular fitness (CVF) and fatness with total homocysteine (tHcy) concentrations in European adolescents. The present study comprised 713 European adolescents aged 14.8 ± 1.2 y (females 55.3%) from the multicenter HELENA cross-sectional study. PA was assessed through accelerometry, CVF by the 20-m shuttle run test, and body fat by skinfold thicknesses with the Slaughter equation. Plasma folate, cobalamin, and tHcy concentrations were measured. To examine the association of tHcy with PA, CVF, and fatness after controlling for a set of confounders including age, maturity, folate, cobalamin, creatinine, smoking, supplement use, and methylenetetrahydrofolate reductase 677 genotype (CC 47%, CT 43%, TT 10%), bivariate correlations followed by multiple regression models were performed. In the bivariate correlation analysis, tHcy concentrations were slightly negatively correlated (p<0.05) with CVF in females (measured both by stages: r=-0.118 and by VO2max: r=-0.102) and positively with body mass index (r=0.100). However, daily time spent with moderate and vigorous PA showed a weak positive association with tHcy in females (p<0.05). tHcy concentrations showed a tendency to decrease with increasing CVF and increase with increasing BMI in female European adolescents. However, tHcy concentrations were positively associated with moderate and vigorous PA in female European adolescents.
Collapse
Affiliation(s)
- Jasmin Benser
- ImFine Research Group, Department of Health and Human Performance, Technical University of Madrid 2) Department of Nutrition and Food Sciences-Nutritional Physiology, University of Bonn Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Drewes YM, Poortvliet RKE, Blom JW, de Ruijter W, Westendorp RGJ, Stott DJ, Blom HJ, Ford I, Sattar N, Wouter Jukema J, Assendelft WJJ, de Craen AJM, Gussekloo J. Homocysteine levels and treatment effect in the PROspective Study of Pravastatin in the Elderly at Risk. J Am Geriatr Soc 2014; 62:213-21. [PMID: 24447238 PMCID: PMC4232895 DOI: 10.1111/jgs.12660] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Objectives To assess the effect of preventive pravastatin treatment on coronary heart disease (CHD) morbidity and mortality in older persons at risk for cardiovascular disease (CVD), stratified according to plasma levels of homocysteine. Design A post hoc subanalysis in the PROspective Study of Pravastatin in the Elderly at Risk (PROSPER), started in 1997, which is a double-blind, randomized, placebo-controlled trial with a mean follow-up of 3.2 years. Setting Primary care setting in two of the three PROSPER study sites (Netherlands and Scotland). Participants Individuals (n = 3,522, aged 70–82, 1,765 male) with a history of or risk factors for CVD were ranked in three groups depending on baseline homocysteine level, sex, and study site. Intervention Pravastatin (40 mg) versus placebo. Measurements Fatal and nonfatal CHD and mortality. Results In the placebo group, participants with a high homocysteine level (n = 588) had a 1.8 higher risk (95% confidence interval (CI) = 1.2–2.5, P = .001) of fatal and nonfatal CHD than those with a low homocysteine level (n = 597). The absolute risk reduction in fatal and nonfatal CHD with pravastatin treatment was 1.6% (95% CI = −1.6 to 4.7%) in the low homocysteine group and 6.7% (95% CI = 2.7–10.7%) in the high homocysteine group (difference 5.2%, 95% CI = 0.11–10.3, P = .046). Therefore, the number needed to treat (NNT) with pravastatin for 3.2 years for benefit related to fatal and nonfatal CHD events was 14.8 (95% CI = 9.3–36.6) for high homocysteine and 64.5 (95% CI = 21.4–∞) for low homocysteine. Conclusion In older persons at risk of CVD, those with high homocysteine are at highest risk for fatal and nonfatal CHD. With pravastatin treatment, this group has the highest absolute risk reduction and the lowest NNT to prevent fatal and nonfatal CHD.
Collapse
Affiliation(s)
- Yvonne M Drewes
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Ahluwalia N, Blacher J, Szabo de Edelenyi F, Faure P, Julia C, Hercberg S, Galan P. Prognostic value of multiple emerging biomarkers in cardiovascular risk prediction in patients with stable cardiovascular disease. Atherosclerosis 2013; 228:478-84. [DOI: 10.1016/j.atherosclerosis.2013.03.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/13/2013] [Accepted: 03/11/2013] [Indexed: 11/28/2022]
|
5
|
Transsulfuration pathway thiols and methylated arginines: the Hunter Community Study. PLoS One 2013; 8:e54870. [PMID: 23365680 PMCID: PMC3554694 DOI: 10.1371/journal.pone.0054870] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 12/17/2012] [Indexed: 02/05/2023] Open
Abstract
Background Serum homocysteine, when studied singly, has been reported to be positively associated both with the endogenous nitric oxide synthase inhibitor asymmetric dimethylarginine [ADMA, via inhibition of dimethylarginine dimethylaminohydrolase (DDAH) activity] and with symmetric dimethylarginine (SDMA). We investigated combined associations between transsulfuration pathway thiols, including homocysteine, and serum ADMA and SDMA concentrations at population level. Methods Data on clinical and demographic characteristics, medication exposure, C-reactive protein, serum ADMA and SDMA (LC-MS/MS), and thiols (homocysteine, cysteine, taurine, glutamylcysteine, total glutathione, and cysteinylglycine; capillary electrophoresis) were collected from a sample of the Hunter Community Study on human ageing [n = 498, median age (IQR) = 64 (60–70) years]. Results Regression analysis showed that: a) age (P = 0.001), gender (P = 0.03), lower estimated glomerular filtration rate (eGFR, P = 0.08), body mass index (P = 0.008), treatment with beta-blockers (P = 0.03), homocysteine (P = 0.02), and glutamylcysteine (P = 0.003) were independently associated with higher ADMA concentrations; and b) age (P = 0.001), absence of diabetes (P = 0.001), lower body mass index (P = 0.01), lower eGFR (P<0.001), cysteine (P = 0.007), and glutamylcysteine (P<0.001) were independently associated with higher SDMA concentrations. No significant associations were observed between methylated arginines and either glutathione or taurine concentrations. Conclusions After adjusting for clinical, demographic, biochemical, and pharmacological confounders the combined assessment of transsulfuration pathway thiols shows that glutamylcysteine has the strongest and positive independent associations with ADMA and SDMA. Whether this reflects a direct effect of glutamylcysteine on DDAH activity (for ADMA) and/or cationic amino acid transport requires further investigations.
Collapse
|
6
|
Iglesias-Gutiérrez E, Egan B, Díaz-Martínez ÁE, Peñalvo JL, González-Medina A, Martínez-Camblor P, O'Gorman DJ, Úbeda N. Transient increase in homocysteine but not hyperhomocysteinemia during acute exercise at different intensities in sedentary individuals. PLoS One 2012; 7:e51185. [PMID: 23236449 PMCID: PMC3517465 DOI: 10.1371/journal.pone.0051185] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 10/30/2012] [Indexed: 11/26/2022] Open
Abstract
Considering that hyperhomocysteinemia is an independent risk factor for cardiovascular disease, the purpose of this study was to determine the kinetics of serum homocysteine (tHcy) and the vitamins involved in its metabolism (folates, B12, and B6) in response to acute exercise at different intensities. Eight sedentary males (18–27 yr) took part in the study. Subjects were required to complete two isocaloric (400 kcal) acute exercise trials on separate occasions at 40% (low intensity, LI) and 80% VO2peak (high intensity, HI). Blood samples were drawn at different points before (pre4 and pre0 h), during (exer10, exer20, exer30, exer45, and exer60 min), and after exercise (post0, post3, and post19 h). Dietary, genetic, and lifestyle factors were controlled. Maximum tHcy occurred during exercise, both at LI (8.6 (8.0–10.1) µmol/L, 9.3% increase from pre0) and HI (9.4 (8.2–10.6) µmol/L, 25.7% increase from pre0), coinciding with an accumulated energy expenditure independent of the exercise intensity. From this point onwards tHcy declined until the cessation of exercise and continued descending. At post19, tHcy was not different from pre-exercise values. No values of hyperhomocysteinemia were observed at any sampling point and intensity. In conclusion, acute exercise in sedentary individuals, even at HI, shows no negative effect on tHcy when at least 400 kcal are spent during exercise and the nutritional status for folate, B12, and B6 is adequate, since no hyperhomocysteinemia has been observed and basal concentrations were recovered in less than 24 h. This could be relevant for further informing healthy exercise recommendations.
Collapse
|
7
|
Lajin B, Alachkar A, Sakur AA. Triplex tetra-primer ARMS-PCR method for the simultaneous detection of MTHFR c.677C>T and c.1298A>C, and MTRR c.66A>G polymorphisms of the folate-homocysteine metabolic pathway. Mol Cell Probes 2011; 26:16-20. [PMID: 22074746 DOI: 10.1016/j.mcp.2011.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2011] [Revised: 10/24/2011] [Accepted: 10/24/2011] [Indexed: 12/18/2022]
Abstract
The folate-homocysteine metabolic pathway was shown to play an important role in several diseases such as cancers, cardiovascular diseases, and neurodegenerative diseases. The c.677C>T and c.1298A>C polymorphisms of the Methylenetetrahydrofolate reductase (MTHFR) gene, and c.66A>G of the Methionine synthase reductase (MTRR) gene are the most commonly investigated polymorphisms in the folate-homocysteine metabolic pathway. The currently used methods for the detection of the three polymorphisms are either slow and laborious or extremely expensive. In this paper, a new highly optimized method for the simultaneous detection of the three single nucleotide polymorphisms is described. The proposed method utilizes 12 primers in a single PCR reaction to detect the three polymorphisms simultaneously based on the principle of tetra-primer ARMS-PCR (also known as PCR-CTPP). The proposed method offers extremely fast, economical, and simple detection. Validation by PCR-RFLP showed 100% concordance in genotype assignment. The proposed method was successfully applied to a sample of the Syrian population (n=126), which was not previously genotyped for any of the three SNPs. The variant allele frequencies were found to be 31, 29, and 43% for the c.677C>T, c.1298A>C, and c.66A>G polymorphisms, respectively. The proposed method is the first to detect three SNPs in a single PCR reaction based on tetra-primer ARMS-PCR or PCR-CTPP. We suggest that the use of Betaine may play an important role in multiplex tetra-primer ARMS-PCR or PCR-CTPP based on its potential capacity to close the gap in melting temperature between different primers.
Collapse
Affiliation(s)
- Bassam Lajin
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Aleppo, Aleppo, Syria.
| | | | | |
Collapse
|