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Malin SK, Erdbrügger U. Extracellular Vesicles in Metabolic and Vascular Insulin Resistance. J Vasc Res 2024; 61:129-141. [PMID: 38615667 PMCID: PMC11149383 DOI: 10.1159/000538197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/01/2024] [Indexed: 04/16/2024] Open
Abstract
BACKGROUND Insulin resistance is a major etiological factor in obesity, type 2 diabetes, and cardiovascular disease (CVD). Endothelial dysfunction may precede impairments in insulin-stimulated glucose uptake, thereby making it a key feature in development of CVD. However, the mechanism by which vascular tissue becomes dysfunctional is not clear. SUMMARY Extracellular vesicles (EVs) have emerged as potential mediators of insulin resistance and vascular dysfunction. EVs are membrane-bound particles released by tissues following cellular stress or activation. They carry "cargo" (e.g., insulin signaling proteins, eNOS-nitric oxide, and miRNA) that are believed to promote inter-cellular and interorgan communications. Herein, we review the underlying physiology of EVs in relation to type 2 diabetes and CVD risk. Specifically, we discuss how EVs may modulate metabolic (e.g., skeletal muscle, liver, and adipose) insulin sensitivity, and propose that EVs may modulate vascular insulin action to influence both endothelial function and arterial stiffness. We lastly identify how EVs may play a unique role following exercise to promote metabolic and vascular insulin sensitivity changes. KEY MESSAGE Gaining insight toward insulin-mediated EV mechanism has potential to identify novel pathways regulating cardiometabolic health and provide foundation for examining EVs as unique biomarkers and targets to prevent and/or treat chronic diseases.
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Affiliation(s)
- Steven K Malin
- Department of Kinesiology and Health, Rutgers University, New Brunswick, New Jersey, USA
- Division of Endocrinology, Metabolism and Nutrition, Department of Medicine, New Brunswick, New Jersey, USA
- The New Jersey Institute for Food, Nutrition and Health, Rutgers University, New Brunswick, New Jersey, USA
- Institute of Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Uta Erdbrügger
- Division of Nephrology, Department of Medicine, University of Virginia Health System, New Brunswick, New Jersey, USA
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Lew LA, Ethier TS, Pyke KE. The impact of exercise training on endothelial function in postmenopausal women: a systematic review. Exp Physiol 2022; 107:1388-1421. [PMID: 36288824 DOI: 10.1113/ep090702] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/27/2022] [Indexed: 12/14/2022]
Abstract
NEW FINDINGS What is the topic of this review? The aim of this systematic review was to evaluate and summarize all published literature examining the impact of various exercise training interventions on endothelial function in postmenopausal women. What advances does it highlight? There was a moderate effect of training on macrovascular and microvascular endothelial function and just under two-thirds of studies demonstrated a significant increase in at least one measure of endothelial function in postmenopausal women. Factors including exercise intensity and duration, vessel type, clinical status, hormone therapy, and menopausal status may influence the effects of training on endothelial function in postmenopausal women. ABSTRACT Women experience a rapid decline in endothelial function during menopause. Therefore, it is important to explore interventions, such as exercise training, that may prevent endothelial dysfunction in postmenopausal women. The aim of this systematic review was to evaluate and summarize all published literature examining the impact of various exercise training interventions on endothelial function in postmenopausal women. Three electronic databases (MEDLINE, EMBASE and Web of Science) were used to systematically select studies related to exercise training, endothelial function and postmenopausal women. The major initial and secondary update systematic searches yielded 502 unique articles that were screened for eligibility. Thirty-five studies were included in the systematic review. Two-thirds of all studies demonstrated a group-level increase in at least one measure of endothelial function with training. Most studies investigating biomarkers of endothelial function showed improvement in at least one measured biomarker post-training. There was a moderate effect of training on both macrovascular and microvascular endothelial function in observational and randomized intervention studies. Variability in study designs, training protocols and participant characteristics make it difficult to directly compare studies. Factors including exercise intensity and duration, vessel type, clinical status, hormone therapy, and menopausal status may contribute to the inconsistent effects of training on endothelial function in postmenopausal women. Future research is needed in this population to understand the mechanisms driving inter-study and inter-individual differences in training-induced changes in endothelial function.
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Affiliation(s)
- Lindsay A Lew
- Cardiovascular Stress Response Lab, School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada
| | - Tarrah S Ethier
- Cardiovascular Stress Response Lab, School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada
| | - Kyra E Pyke
- Cardiovascular Stress Response Lab, School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada
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3
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Ribeiro I, de Lucena E, Oliveira A, Fernandes P. Physical exercise in menopause: a review of physiological changes. COMPARATIVE EXERCISE PHYSIOLOGY 2022. [DOI: 10.3920/cep220009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Menopause is characterised by several hormonal changes through which women undergo aging. These changes lead to psychological, somatic, urogenital and vasomotor symptoms that influence the quality of life of women. Studies have shown that physical exercise can benefit women in the pre- and postmenopausal stages. However, the physiological benefits of exercise during the menopausal period have been less explored, as well as which type of exercise is most recommended at this stage of life. Therefore, the present review aimed to investigate the physiological changes promoted by the practice of physical exercise during the menopause period. A search for scientific articles was performed in the PubMed database using the descriptors ‘menopause’ and ‘exercise’ and the ‘AND’ connector. The period selected for this study was from 2014 to 2018. After applying the inclusion and exclusion criteria, five articles were selected. As a result, studies suggest that physical exercise promotes hormones, body composition and positive cardiovascular changes, decreases menopausal symptoms and improves psychosocial health. In addition, it is associated with an improvement in the quality of life.
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Affiliation(s)
- I.C. Ribeiro
- School of Medical Sciences, University of Campinas (FCM-UNICAMP), Rua Tessália Vieira de Camargo 126, Campinas, 13083-887, Brazil
| | - E.G.P. de Lucena
- School of Physical Education, University of Campinas (FEF-UNICAMP), Rua Tessália Vieira de Camargo 126, Campinas, 13083-887, Brazil
| | - A.S. Oliveira
- School of Physical Education, University of Campinas (FEF-UNICAMP), Rua Tessália Vieira de Camargo 126, Campinas, 13083-887, Brazil
| | - P.T. Fernandes
- School of Medical Sciences, University of Campinas (FCM-UNICAMP), Rua Tessália Vieira de Camargo 126, Campinas, 13083-887, Brazil
- School of Physical Education, University of Campinas (FEF-UNICAMP), Rua Tessália Vieira de Camargo 126, Campinas, 13083-887, Brazil
- GEPEN (Sport’s Psychology and Neurosciences Study Group), FEF-UNICAMP, Rua Tessália Vieira de Camargo 126, Campinas, 13083-887, Brazil
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Steckling FM, Farinha JB, Figueiredo FDC, Santos DLD, Bresciani G, Kretzmann NA, Stefanello ST, Courtes AA, Beck MDO, Sangoi Cardoso M, Duarte MMMF, Moresco RN, Soares FAA. High-intensity interval training improves inflammatory and adipokine profiles in postmenopausal women with metabolic syndrome. Arch Physiol Biochem 2019; 125:85-91. [PMID: 29431478 DOI: 10.1080/13813455.2018.1437750] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
This study investigate the effects of high-intensity interval training (HIIT) on systemic levels of inflammatory and hormonal markers in postmenopausal women with metabolic syndrome (MS). Fifteen postmenopausal women with MS completed the training on treadmills. Functional, body composition parameters, maximal oxygen uptake (VO2max), and lipid profile were assessed before and after HIIT. Serum or plasma levels of cytokines and hormonal markers were measured along the intervention. The analysis of messenger RNA (mRNA) expression of these cytokines was performed in peripheral blood mononuclear cells (PBMC). VO2max and some anthropometric parameters were improved after HIIT, while decreased levels of proinflammatory markers and increased levels of interleukin-10 (IL-10) were also found. Adipokines were also modulated after 12 weeks or training. The mRNA expression of the studied genes was unchanged after HIIT. In conclusion, HIIT benefits inflammatory and hormonal axis on serum or plasma samples, without changes on PBMC of postmenopausal MS patients.
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Affiliation(s)
- Flávia Mariel Steckling
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Juliano Boufleur Farinha
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
- c Escola de Educação Física, Fisioterapia e Dança , Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
| | - Felipe da Cunha Figueiredo
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Daniela Lopes Dos Santos
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Guilherme Bresciani
- d Grupo de Investigación en Rendimiento Físico y Salud (IRyS), Escuela de Educación Física , Pontificia Universidad Católica de Valparaiso , Valparaiso , Chile
| | | | - Sílvio Terra Stefanello
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Aline Alves Courtes
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Maristela de Oliveira Beck
- f Departamento de Pós-Graduação Multiprofissional em Ciências da Saúde, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Manuela Sangoi Cardoso
- g Departamento de Análises Clinicas e Toxicológicas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | | | - Rafael Noal Moresco
- g Departamento de Análises Clinicas e Toxicológicas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Félix Alexandre Antunes Soares
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
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Karvinen S, Jergenson MJ, Hyvärinen M, Aukee P, Tammelin T, Sipilä S, Kovanen V, Kujala UM, Laakkonen EK. Menopausal Status and Physical Activity Are Independently Associated With Cardiovascular Risk Factors of Healthy Middle-Aged Women: Cross-Sectional and Longitudinal Evidence. Front Endocrinol (Lausanne) 2019; 10:589. [PMID: 31543865 PMCID: PMC6729112 DOI: 10.3389/fendo.2019.00589] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/12/2019] [Indexed: 12/21/2022] Open
Abstract
Cardiovascular disease (CVD) is the primary cause of mortality in women in developed countries. CVD risk rises with age, yet for women there is a rapid increase in CVD risk that occurs after the onset of menopause. This observation suggests the presence of factors in the middle-aged women that accelerate the progression of CVD independent of chronological aging. Leisure time physical activity (LTPA) is a well-established protective factor against CVD. However, its role in attenuating atherogenic lipid profile changes and CVD risk in post-menopausal women has not been well-established. The present study is part of the Estrogenic Regulation of Muscle Apoptosis (ERMA) study, a population-based cohort study in which middle-aged Caucasian women (47-55) were classified into pre-menopausal, peri-menopausal, and post-menopausal groups based on follicle stimulating hormone levels and bleeding patterns. Comprehensive questionnaires, laboratory visits, anthropometric measurements, and physical activity monitoring by accelerometers were used to characterize the menopausal groups and serum lipid profiles were analyzed to quantify CV (cardiovascular) risk factors. Based on our findings, LTPA may attenuate menopause-associated atherogenic changes in the serum CV risk factors of healthy middle-aged women. However, LTPA does not seem to entirely offset the lipid profile changes associated with the menopausal transition.
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Affiliation(s)
- Sira Karvinen
- Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Matthew J Jergenson
- Department of Rehabilitation Medicine, Medical School, University of Minnesota, Minneapolis, MN, United States
| | - Matti Hyvärinen
- Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Pauliina Aukee
- Pelvic Floor Research and Therapy Unit, Department of Obstetrics and Gynecology, Central Finland Central Hospital, Jyväskylä, Finland
| | - Tuija Tammelin
- LIKES Research Centre for Physical Activity and Health, Jyväskylä, Finland
| | - Sarianna Sipilä
- Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Vuokko Kovanen
- Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Urho M Kujala
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Eija K Laakkonen
- Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
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Heiston EM, Malin SK. Impact of Exercise on Inflammatory Mediators of Metabolic and Vascular Insulin Resistance in Type 2 Diabetes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1134:271-294. [PMID: 30919343 DOI: 10.1007/978-3-030-12668-1_15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The development of obesity is cornerstone in the etiology of metabolic and vascular insulin resistance and consequently exacerbates glycemic control. Exercise is an efficacious first-line therapy for type 2 diabetes that improves insulin action through, in part, reducing hormone mediated inflammation. Together, improving the coordination of skeletal muscle metabolism with vascular delivery of glucose will be required for optimizing type 2 diabetes and cardiovascular disease treatment.
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Affiliation(s)
- Emily M Heiston
- Department of Kinesiology, University of Virginia, Charlottesville, VA, USA
| | - Steven K Malin
- Department of Kinesiology, University of Virginia, Charlottesville, VA, USA.
- Division of Endocrinology and Metabolism, University of Virginia, Charlottesville, VA, USA.
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA.
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7
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Serviente C, Burnside A, Witkowski S. Moderate-intensity exercise reduces activated and apoptotic endothelial microparticles in healthy midlife women. J Appl Physiol (1985) 2018; 126:102-110. [PMID: 30236051 DOI: 10.1152/japplphysiol.00420.2018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Endothelial microparticles (EMPs) are related to cardiovascular disease (CVD) risk. Risk factors for CVD increase with menopause, and greater cardiorespiratory fitness is generally expected to reduce CVD risk. The effects of habitual physical activity on endothelial health may be due in part to the effect of acute exercise on circulating EMPs. This study was performed to evaluate the effect of an acute bout of exercise on CD62E+ and CD31+/42b- EMPs in healthy fit midlife women at different menopausal stages. Healthy, active premenopausal (PRE), perimenopausal (PERI), and postmenopausal (POST) women completed a single bout of moderate-intensity treadmill exercise. Activated (CD62E+) and apoptotic (CD31+/42b-) EMPs were evaluated before and 30 min after exercise by using fluorescent activated cell sorting. In an exploratory analysis, these results were compared with data from low-fit peri- and postmenopausal women. Differences by group and time point were evaluated with repeated-measure ANOVAs. There was a reduction in the number of total microparticles ( P < 0.001), CD62E+ ( P = 0.003), and CD31+/42b- ( P < 0.001) EMPs/μl plasma following acute exercise. The percentage of CD62E+ EMPs increased with acute exercise ( P < 0.001), whereas the percentage of CD31+/42b- EMPs did not change ( P = 0.40). There was no effect of menopausal status on CD62E+or CD31+/42b- EMPs, or on total microparticles (all P > 0.05). The exploratory analysis revealed that low-fit women had similar changes in EMPs with acute exercise. We concluded that acute moderate-intensity exercise reduces CD62E+and CD31+/42b- EMPs, as well as total microparticles, in healthy midlife women. These effects occurred despite differences in menopausal status and fitness. NEW & NOTEWORTHY This study demonstrates that acute moderate-intensity exercise reduces activated and apoptotic endothelial microparticles in healthy midlife women.
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Affiliation(s)
- Corinna Serviente
- Department of Kinesiology, University of Massachusetts Amherst , Amherst, Massachusetts.,Center for Healthy Aging, Pennsylvania State University , University Park, Pennsylvania
| | - Amy Burnside
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst , Amherst, Massachusetts
| | - Sarah Witkowski
- Department of Kinesiology, University of Massachusetts Amherst , Amherst, Massachusetts.,Department of Exercise and Sport Studies, Smith College , Northampton, Massachusetts
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8
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Eichner NZM, Erdbrügger U, Malin SK. Extracellular Vesicles: A Novel Target for Exercise-Mediated Reductions in Type 2 Diabetes and Cardiovascular Disease Risk. J Diabetes Res 2018; 2018:7807245. [PMID: 30018986 PMCID: PMC6029462 DOI: 10.1155/2018/7807245] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/03/2018] [Indexed: 12/15/2022] Open
Abstract
Regular exercise is important for reducing type 2 diabetes (T2D) and/or cardiovascular disease (CVD) risk. However, only about 40-50% of this CVD risk reduction is accounted for by adiposity, hyperglycemia, hypertension, and dyslipidemia. Herein, we present the novel hypothesis that extracellular vesicles (EVs) are candidate biomarkers that may relate to impaired endothelial function and insulin resistance independent of obesity risk factors. EVs are small membrane-bound particles that are generated by cells following stimulation, stress, or activation. They carry markers of their parent cell and are thought to be potent bioactivators and communicators. We discuss the underlying physiology of specific cell type EVs, as well as examine how acute and chronic exercise interventions impact EV count and phenotype. We also propose that current gaps in the field are in part related to use of different detection techniques and the lack of standardized measurements of EV affecting the pre- and postanalytical phase. Ultimately, improving the understanding of how EVs impact cardiometabolic health and their function will lead to improved approaches for enhancing diagnostic options as well as designing exercise interventions that treat and/or prevent T2D and CVD.
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Affiliation(s)
| | - Uta Erdbrügger
- Division of Nephrology, University of Virginia, Charlottesville, VA, USA
| | - Steven K. Malin
- Department of Kinesiology, University of Virginia, Charlottesville, VA, USA
- Division of Endocrinology and Metabolism, University of Virginia, Charlottesville, VA, USA
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
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9
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Abstract
Cardiovascular disease is the leading cause of death in women. There is a dramatic rise in risk factors for cardiovascular disease during the menopausal transition that is independent of aging. Endothelial dysfunction is an early hallmark of developing cardiovascular disease and has been shown to increase across the stages of menopause. Exercise is considered one of the most effective lifestyle therapies to maintain and improve endothelial function. However, accumulating evidence suggests that exercise does not have the same benefit on endothelial function in menopausal women as it does in other populations, and factors associated with menopause likely influence the endothelial responsiveness to exercise. This review will detail the current available evidence on endothelial dysfunction, exercise, and menopause, including mechanisms that may mediate the accumulating endothelial dysfunction in women with menopause, the impact of exercise on endothelial function in women, and whether regular exercise is an effective therapeutic and prevention strategy to maintain endothelial function with menopause. We conclude that the effect of exercise on endothelial function differs according to menopausal stage and cardiovascular disease risk burden. Finally, we will address critical gaps in the literature with the goal of identifying future research directions to improve healthy aging in women.
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Affiliation(s)
- S Witkowski
- a Department of Exercise and Sport Studies , Smith College , Northampton , MA , USA
| | - C Serviente
- b Department of Kinesiology , University of Massachusetts Amherst , Amherst , MA , USA
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10
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Effects of high-intensity training on cardiovascular risk factors in premenopausal and postmenopausal women. Am J Obstet Gynecol 2017; 216:384.e1-384.e11. [PMID: 28024987 DOI: 10.1016/j.ajog.2016.12.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/06/2016] [Accepted: 12/16/2016] [Indexed: 11/21/2022]
Abstract
BACKGROUND Menopause is associated with increased risk of cardiovascular disease and the causal factors have been proposed to be the loss of estrogen and the subsequent alterations of the hormonal milieu. However, which factors contribute to the deterioration of cardiometabolic health in postmenopausal women is debated as the menopausal transition is also associated with increased age and fat mass. Furthermore, indications of reduced cardiometabolic adaptations to exercise in postmenopausal women add to the adverse health profile. OBJECTIVE We sought to evaluate risk factors for type 2 diabetes and cardiovascular disease in late premenopausal and early postmenopausal women, matched by age and body composition, and investigate the effect of high-intensity training. STUDY DESIGN A 3-month high-intensity aerobic training intervention, involving healthy, nonobese, late premenopausal (n = 40) and early postmenopausal (n = 39) women was conducted and anthropometrics, body composition, blood pressure, lipid profile, glucose tolerance, and maximal oxygen consumption were determined at baseline and after the intervention. RESULTS At baseline, the groups matched in anthropometrics and body composition, and only differed by 4.2 years in age (mean [95% confidence limits] 49.2 [48.5-49.9] vs 53.4 [52.4-54.4] years). Time since last menstrual period for the postmenopausal women was (mean [95% confidence limits] 3.1 [2.6-3.7] years). Hormonal levels (estrogen, follicle stimulation hormone, luteinizing hormone) confirmed menopausal status. At baseline the postmenopausal women had higher total cholesterol (P < .001), low-density lipoprotein-cholesterol (P < .05), and high-density lipoprotein-cholesterol (P < .001) than the premenopausal women. The training intervention reduced body weight (P < .01), waist circumference (P < .01), and improved body composition by increasing lean body mass (P < .001) and decreasing fat mass (P < .001) similarly in both groups. Moreover, training resulted in lower diastolic blood pressure (P < .05), resting heart rate (P < .001), total cholesterol (P < .01), low-density lipoprotein-cholesterol (P < .01), total cholesterol/high-density lipoprotein-cholesterol index (P < .01), and improved plasma insulin concentration during the oral glucose tolerance test (P < .05) in both groups. CONCLUSION Cardiovascular risk factors are similar in late premenopausal and early postmenopausal women, matched by age and body composition, with the exception that postmenopausal women have higher high- and low-density lipoprotein-cholesterol levels. A 3-month intervention of high-intensity aerobic training reduces risk factors for type 2 diabetes and cardiovascular disease to a similar extent in late premenopausal and early postmenopausal women.
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11
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Il'yasova D, Wong BJ, Waterstone A, Kinev A, Okosun IS. Systemic F 2-Isoprostane Levels in Predisposition to Obesity and Type 2 Diabetes: Emphasis on Racial Differences. DIVERSITY AND EQUALITY IN HEALTH AND CARE 2017; 14:91-101. [PMID: 32523692 DOI: 10.21767/2049-5471.100098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This review focuses on racial differences in systemic levels of lipid peroxidation markers F2-isoprostanes as metabolic characteristics predisposing to obesity and type 2 diabetes. Elevated levels F2-isoprostanes were found in obesity, type 2 diabetes and their comorbidities. It was hypothesized that increased F2-isoprostane levels reflect the obesity-induced oxidative stress that promotes the development of type 2 diabetes. However, African Americans have lower levels of systemic F2-isoprostane levels despite their predisposition to obesity and type 2 diabetes. The review summarizes new findings from epidemiological studies and a novel interpretation of metabolic determinants of systemic F2-isoprostane levels as a favorable phenotype. Multiple observations indicate that systemic F2-isoprostane levels reflect intensity of oxidative metabolism, a major endogenous source of reactive oxygen species, and specifically, the intensity of fat utilization. Evidence from multiple human studies proposes that targeting fat metabolism can be a productive race-specific strategy to address the existing racial health disparities. Urinary F2-isoprostanes may provide the basis for targeted interventions to prevent obesity and type 2 diabetes among populations of African descent.
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Affiliation(s)
- Dora Il'yasova
- School of Public Health, Georgia State University, 140 Decatur St, Atlanta, GA, USA
| | - Brett J Wong
- Department of Kinesiology and Health, Georgia State University, 140 Decatur St, Atlanta, GA, USA
| | - Anna Waterstone
- Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, USA
| | | | - Ike S Okosun
- School of Public Health, Georgia State University, 140 Decatur St, Atlanta, GA, USA
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12
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Serviente C, Troy LM, de Jonge M, Shill DD, Jenkins NT, Witkowski S. Endothelial and inflammatory responses to acute exercise in perimenopausal and late postmenopausal women. Am J Physiol Regul Integr Comp Physiol 2016; 311:R841-R850. [PMID: 27534876 DOI: 10.1152/ajpregu.00189.2016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 08/15/2016] [Indexed: 01/22/2023]
Abstract
Endothelial dysfunction and inflammation are characteristics of subclinical atherosclerosis and may increase through progressive menopausal stages. Evaluating endothelial responses to acute exercise can reveal underlying dysfunction not apparent in resting conditions. The purpose of this study was to investigate markers of endothelial function and inflammation before and after acute exercise in healthy low-active perimenopausal (PERI) and late postmenopausal (POST) women. Flow-mediated dilation (FMD), CD31+/CD42b- and CD62E+ endothelial microparticles (EMPs), and the circulating inflammatory factors monocyte chemoattractant protein 1 (MCP-1), interleukin 8 (IL-8), and tumor necrosis factor-α (TNF-α) were measured before and 30 min after acute exercise. Before exercise, FMD was not different between groups (PERI: 6.4 ± 0.9% vs. POST: 6.5 ± 0.8%, P = 0.97); however, after acute exercise PERI tended to improve FMD (8.5 ± 0.9%, P = 0.09), whereas POST did not (6.2 ± 0.8%, P = 0.77). Independent of exercise, we observed transient endothelial dysfunction in POST with repeated FMD measures. There was a group × exercise interaction for CD31+/CD42b- EMPs (P = 0.04), where CD31+/CD42b- EMPs were similar before exercise (PERI: 57.0 ± 6.7 EMPs/μl vs. POST: 58.5 ± 5.3 EMPs/μl, P = 0.86) but were higher in POST following exercise (PERI: 48.2 ± 6.7 EMPs/μl vs. POST: 69.4 ± 5.3 EMPs/μl, P = 0.023). CD62E+ EMPs were lower in PERI compared with POST before exercise (P < 0.001) and increased in PERI (P = 0.04) but did not change in POST (P = 0.68) in response to acute exercise. After acute exercise, MCP-1 (P = 0.055), TNF-α (P = 0.02), and IL-8 (P < 0.001) were lower in PERI but only IL-8 decreased in POST (P < 0.001). Overall, these data suggest that perimenopausal and late postmenopausal women display different endothelial and inflammatory responses to acute exercise.
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Affiliation(s)
- Corinna Serviente
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts
| | - Lisa M Troy
- Department of Nutrition, University of Massachusetts Amherst, Amherst, Massachusetts; and
| | - Maxine de Jonge
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts
| | - Daniel D Shill
- Department of Kinesiology, University of Georgia, Athens, Georgia
| | - Nathan T Jenkins
- Department of Kinesiology, University of Georgia, Athens, Georgia
| | - Sarah Witkowski
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts;
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Effects of 8-Week Hatha Yoga Training on Metabolic and Inflammatory Markers in Healthy, Female Chinese Subjects: A Randomized Clinical Trial. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5387258. [PMID: 27563670 PMCID: PMC4987461 DOI: 10.1155/2016/5387258] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 06/30/2016] [Indexed: 11/17/2022]
Abstract
We aimed to determine the effects of an 8 wk Hatha yoga training on blood glucose, insulin, lipid profiles, endothelial microparticles (EMPs), and inflammatory status in healthy, lean, and female Chinese subjects. A total of 30 healthy, female Chinese subjects were recruited and randomized into control or yoga practice group. The yoga practice included 8 wks of yoga practice (2 times/wk) for a total of 16 times. Fasting blood samples were collected before and after yoga training. Plasma was isolated for the measurement of lipid profiles, glucose, insulin, EMPs, and inflammatory cytokines. Whole blood was cultured ex vivo and stimulated with lipopolysaccharide (LPS) and Pam3Cys-SK4. Peripheral blood mononuclear cells (PBMCs) were isolated for the measurement of TLR2 and TLR4 protein expression. Yoga practice significantly reduced plasma cholesterol, LDL-cholesterol, insulin levels, and CD31+/CD42b- EMPs. Cultured whole blood from the yoga group has reduced proinflammatory cytokines secretion both at unstimulated condition and when stimulated with Pam3Cys-SK4; this might be associated with reduced TLR2 protein expression in PBMCs after yoga training. Hatha yoga practice in healthy Chinese female subjects could improve hallmarks related to MetS; thus it can be considered as an ancillary intervention in the primary MetS prevention for the healthy population. This trial is registered with ChiCTR-IOR-14005747.
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Kitson AP, Marks KA, Aristizabal Henao JJ, Tupling AR, Stark KD. Prevention of hyperphagia prevents ovariectomy-induced triacylglycerol accumulation in liver, but not plasma. Nutr Res 2015; 35:1085-94. [PMID: 26475180 DOI: 10.1016/j.nutres.2015.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 09/17/2015] [Accepted: 09/21/2015] [Indexed: 12/13/2022]
Abstract
Menopause is associated with higher plasma and liver triacylglycerol (TAG) and increased risk for cardiovascular disease. Lowering TAG in menopause may be beneficial; however, the mechanism underlying menopause-induced TAG accumulation is not clear. Ovariectomy is a model for menopause and is associated with metabolic alterations and hyperphagia. This study investigated the role of hyperphagia in ovariectomy-induced increases in blood and tissue TAG, as well as differences in lipid metabolism enzymes and resting metabolic measures. It was hypothesized that prevention of hyperphagia would restore blood and tissue TAG, enzyme expression, and metabolic measures to eugonadal levels. Ovariectomized rats were fed ad libitum (OVX + AL) or pair-fed (OVX + PF) relative to sham-operated rats (SHAM) to prevent hyperphagia. OVX + AL had higher TAG concentrations in liver and plasma than SHAM (60% and 50%, respectively), and prevention of hyperphagia in OVX + PF normalized TAG concentrations to SHAM levels in liver, but not plasma. OVX + AL also had 141% higher hepatic stearoyl-CoA desaturase 1 which was almost completely normalized to SHAM levels by pair-feeding, suggesting normalization of hepatic lipid storage. In contrast, skeletal muscle carnitine palmitoyl transferase 1 was 40% lower in OVX + AL than SHAM and was intermediate in OVX + PF, suggesting lower muscle fatty acid oxidation that may underlie the higher plasma TAG in OVX. No differences were seen in energy expenditure, VO2, or VCO2. Overall, this study indicates that prevention of hyperphagia resulting from ovarian hormone withdrawal normalizes hepatic TAG to eugonadal levels but has no effect on ovariectomy-induced increases in plasma TAG.
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Affiliation(s)
- Alex P Kitson
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, N2L 3G1
| | - Kristin A Marks
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, N2L 3G1
| | | | - A Russell Tupling
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, N2L 3G1
| | - Ken D Stark
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, N2L 3G1.
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Durrer C, Robinson E, Wan Z, Martinez N, Hummel ML, Jenkins NT, Kilpatrick MW, Little JP. Differential impact of acute high-intensity exercise on circulating endothelial microparticles and insulin resistance between overweight/obese males and females. PLoS One 2015; 10:e0115860. [PMID: 25710559 PMCID: PMC4339732 DOI: 10.1371/journal.pone.0115860] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 12/02/2014] [Indexed: 01/16/2023] Open
Abstract
Background An acute bout of exercise can improve endothelial function and insulin sensitivity when measured on the day following exercise. Our aim was to compare acute high-intensity continuous exercise (HICE) to high-intensity interval exercise (HIIE) on circulating endothelial microparticles (EMPs) and insulin sensitivity in overweight/obese men and women. Methods Inactive males (BMI = 30 ± 3, 25 ± 6 yr, n = 6) and females (BMI = 28 ± 2, 21 ± 3 yr, n = 7) participated in three experimental trials in a randomized counterbalanced crossover design: 1) No exercise control (Control); 2) HICE (20 min cycling @ just above ventilatory threshold); 3) HIIE (10 X 1-min @ ∼90% peak aerobic power). Exercise conditions were matched for external work and diet was controlled post-exercise. Fasting blood samples were obtained ∼18 hr after each condition. CD62E+ and CD31+/CD42b- EMPs were assessed by flow cytometry and insulin resistance (IR) was estimated by homeostasis model assessment (HOMA-IR). Results There was a significant sex X exercise interaction for CD62E+ EMPs, CD31+/CD42b- EMPs, and HOMA-IR (all P<0.05). In males, both HICE and HIIE reduced EMPs compared to Control (P≤0.05). In females, HICE increased CD62E+ EMPs (P<0.05 vs. Control) whereas CD31+/CD42b- EMPs were unaltered by either exercise type. There was a significant increase in HOMA-IR in males but a decrease in females following HIIE compared to Control (P<0.05). Conclusions Overweight/obese males and females appear to respond differently to acute bouts of high-intensity exercise. A single session of HICE and HIIE reduced circulating EMPs measured on the morning following exercise in males but in females CD62E+ EMPs were increased following HICE. Next day HOMA-IR paradoxically increased in males but was reduced in females following HIIE. Future research is needed to investigate mechanisms responsible for potential differential responses between males and females.
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Affiliation(s)
- Cody Durrer
- School of Health and Exercise Sciences, University of British Columbia, Okanagan Campus, Kelowna, British Columbia, Canada
| | - Emily Robinson
- School of Health and Exercise Sciences, University of British Columbia, Okanagan Campus, Kelowna, British Columbia, Canada
| | - Zhongxiao Wan
- School of Health and Exercise Sciences, University of British Columbia, Okanagan Campus, Kelowna, British Columbia, Canada
| | - Nic Martinez
- College of Education, University of South Florida, Tampa, Florida, United States of America
| | - Michelle L. Hummel
- College of Education, University of South Florida, Tampa, Florida, United States of America
| | - Nathan T. Jenkins
- Department of Kinesiology, University of Georgia, Athens, Georgia, United States of America
| | - Marcus W. Kilpatrick
- College of Education, University of South Florida, Tampa, Florida, United States of America
| | - Jonathan P. Little
- School of Health and Exercise Sciences, University of British Columbia, Okanagan Campus, Kelowna, British Columbia, Canada
- * E-mail:
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Do we need to prescribe exercise differently for premenopausal and postmenopausal women? Menopause 2014; 21:556-7. [DOI: 10.1097/gme.0000000000000267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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