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Aghaei SM, Hosseini SM. Inflammation-related miRNAs in obesity, CVD, and NAFLD. Cytokine 2024; 182:156724. [PMID: 39106574 DOI: 10.1016/j.cyto.2024.156724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/08/2024] [Accepted: 08/01/2024] [Indexed: 08/09/2024]
Abstract
Obesity, cardiovascular diseases (CVD), and nonalcoholic fatty liver disease (NAFLD) pose significant worldwide health challenges, characterized by complex interplay among inflammatory pathways that underlie their development. In this review, we examine the contribution of inflammation and associated signaling molecules to the pathogenesis of these conditions, while also emphasizing the significant participation of non-coding RNAs (ncRNAs) in modulating inflammatory pathways. In the context of obesity, aberrant expression patterns of inflammatory-associated miRNAs play a contributory role in adipose tissue inflammation and insulin resistance, thereby exacerbating disturbances in metabolic homeostasis. Similarly, in CVD, dysregulated miRNA expression alters inflammatory reactions, disrupts endothelial function, and induces cardiac remodeling, thereby impacting the advancement of the disease. Moreover, in the context of NAFLD, inflammatory-associated miRNAs are implicated in mediating hepatic inflammation, lipid deposition, and fibrosis, underscoring their candidacy as promising therapeutic targets. Additionally, the competing endogenous RNA (ceRNA) network has emerged as a novel regulatory mechanism in the etiology of CVD, obesity, and NAFLD, wherein ncRNAs assume pivotal roles in facilitating communication across diverse molecular pathways. Moreover, in the concluding section, we underscored the potential efficacy of directing interventions towards inflammatory-related miRNAs utilizing herbal remedies and therapies based on exosome delivery systems as a promising strategy for ameliorating pathologies associated with inflammation in obesity, CVD, and NAFLD.
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Affiliation(s)
- Sayed Mohsen Aghaei
- Student Research Committee, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sayed Mostafa Hosseini
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Tartibian B, Azadpour N, Eslami R, Khayat SMA. Home-based exercise alters pulmonary function and cellular stress markers in overweight middle-aged men during covid-19 Home quarantine. BMC Sports Sci Med Rehabil 2023; 15:61. [PMID: 37081518 PMCID: PMC10116448 DOI: 10.1186/s13102-023-00673-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 04/13/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND This study aimed to investigate the effects of a combined home-based exercise program on potential indicators of severe coronavirus disease 2019 (COVID-19) in overweight middle-aged men during home quarantine caused by COVID-19. METHODS Forty men (aged 45-64 years) were assigned to the exercise (EXE, n = 20) or control (CON, n = 20) groups. A 6-week combined program was carried out three days/week, starting at 20 min per session at 50% maximal heart rate (HRmax) and advancing to 45 min at 70% HRmax. Pulmonary functional and cellular stress biomarkers were measured before and after the training program. Analysis of the covariance (ANCOVA) was used for comparison between the two groups considering the baseline values. RESULTS Thirty-six participants (EXE, n = 17; CON, n = 19) completed the research protocol. The EXE group showed post-training improvements in forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, Vital capacity (VC), and Forced expiratory flow at 25-75% (FEF25-75) compared to the CON group (P < 0. 05). Further, the plasma levels of fibrinogen, Interleukin (IL)-6, Interleukin (IL)-1β, D-dimer, and angiotensin (Ang II) decreased in the EXE group compared to the CON group (P < 0. 05). After six weeks of the training program, leukocyte counts increased in the EXE group compared to the CON group (P < 0. 05). There was a significant positive correlation between body mass index (BMI) with cardiovascular and inflammatory biomarkers other than white blood cells (WBC) in the EXE group (P < 0.05). CONCLUSIONS The findings suggest that combined home-based exercise during home quarantine improves risk factors for severe COVID-19 in overweight middle-aged men. These improvements were further correlated with changes in BMI. Future research is required to confirm the findings of this study.
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Affiliation(s)
- Bakhtyar Tartibian
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Allameh Tabataba'i University, Tehran, Iran.
| | - Noushin Azadpour
- Department of Physiotherapy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Rasoul Eslami
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Allameh Tabataba'i University, Tehran, Iran
| | - Sirwan Mohammad Amini Khayat
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Urmia University, Urmia, Iran
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Pona AA, Carlson JA, Shook RP, Dreyer Gillette ML, Davis AM. Maternal BMI Change Linked to Child Activity Change in Family-Based Behavioral Interventions for Pediatric Weight Management. Child Obes 2019; 15:371-378. [PMID: 31184926 PMCID: PMC6691679 DOI: 10.1089/chi.2018.0284] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Background: This study investigated whether change in maternal BMI was associated with change in child's moderate-to-vigorous physical activity (MVPA) and prolonged sedentary time during the course of family-based behavioral interventions (FBBIs) for pediatric weight management. Methods: Children (n = 120) ages 5-12 [mean age = 9.04 ± 1.7) years with a baseline BMI ≥85th percentile (mean BMIz = 1.8 ± 0.5) and families were enrolled in one of three similar FBBIs for pediatric weight management and followed over 6-12 months. Activity data were collected through accelerometers. Mixed effects regression models assessed the relationship of maternal change in BMI to child change in (1) minutes/d of MVPA and (2) proportion of time spent in sedentary bouts lasting ≥10 minutes (termed prolonged sedentary time), and whether the effect of maternal BMI change was moderated by child age, sex, and race/ethnicity. Results: A decrease in maternal BMI was associated with both an increase in child MVPA, B = -2.77, t = -2.03, p = 0.048, and a decrease in proportion/d of prolonged sedentary time, B = 0.02, t = 2.40, p = 0.020, from baseline to follow-up. Child age moderated the association between maternal BMI change and change in child prolonged sedentary time (p = 0.095), whereby the association was limited to 5- to 10-year-olds and became stronger as age decreased. Conclusions: Improvement in maternal BMI showed important positive associations with child MVPA and prolonged sedentary time over the course of FBBIs for pediatric weight management. Targeting parent weight loss could improve child outcomes in FBBIs, particularly in younger children.
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Affiliation(s)
- Ashleigh A. Pona
- Eating and Weight Disorders Program, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jordan A. Carlson
- Center for Children's Healthy Lifestyles & Nutrition, Kansas City, MO
- Weight Management Program, Children's Mercy Hospital, Kansas City, MO
| | - Robin P. Shook
- Center for Children's Healthy Lifestyles & Nutrition, Kansas City, MO
- Weight Management Program, Children's Mercy Hospital, Kansas City, MO
| | - Meredith L. Dreyer Gillette
- Center for Children's Healthy Lifestyles & Nutrition, Kansas City, MO
- Weight Management Program, Children's Mercy Hospital, Kansas City, MO
| | - Ann M. Davis
- Center for Children's Healthy Lifestyles & Nutrition, Kansas City, MO
- Department of Pediatrics, University of Kansas Medical Center, Kansas City, KS
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Mattina GF, Van Lieshout RJ, Steiner M. Inflammation, depression and cardiovascular disease in women: the role of the immune system across critical reproductive events. Ther Adv Cardiovasc Dis 2019; 13:1753944719851950. [PMID: 31144599 PMCID: PMC6545651 DOI: 10.1177/1753944719851950] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 04/29/2019] [Indexed: 12/18/2022] Open
Abstract
Women are at increased risk for developing depression and cardiovascular disease (CVD) across the lifespan and their comorbidity is associated with adverse outcomes that contribute significantly to rates of morbidity and mortality in women worldwide. Immune-system activity has been implicated in the etiology of both depression and CVD, but it is unclear how inflammation contributes to sex differences in this comorbidity. This narrative review provides an updated synthesis of research examining the association of inflammation with depression and CVD, and their comorbidity in women. Recent research provides evidence of pro-inflammatory states and sex differences associated with alterations in the hypothalamic-pituitary-adrenal axis, the renin-angiotensin-aldosterone system and the serotonin/kynurenine pathway, that likely contribute to the development of depression and CVD. Changes to inflammatory cytokines in relation to reproductive periods of hormonal fluctuation (i.e. the menstrual cycle, perinatal period and menopause) are highlighted and provide a greater understanding of the unique vulnerability women experience in developing both depressed mood and adverse cardiovascular events. Inflammatory biomarkers hold substantial promise when combined with a patient's reproductive and mental health history to aid in the prediction, identification and treatment of the women most at risk for CVD and depression. However, more research is needed to improve our understanding of the mechanisms underlying inflammation in relation to their comorbidity, and how these findings can be translated to improve women's health.
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Affiliation(s)
- Gabriella F. Mattina
- Neuroscience Graduate Program, McMaster University, 1280 Main Street West, ON L8S 4L8, Canada
| | - Ryan J. Van Lieshout
- Neuroscience Graduate Program, McMaster University, ON, Canada
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Meir Steiner
- Women’s Health Concerns Clinic, St. Joseph’s Healthcare, Hamilton, ON, Canada
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
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Rajkumar A, Liaghati A, Chan J, Lamothe G, Dent R, Doucet É, Rabasa-Lhoret R, Prud'homme D, Harper ME, Tesson F. ACSL5 genotype influence on fatty acid metabolism: a cellular, tissue, and whole-body study. Metabolism 2018; 83:271-279. [PMID: 29605434 DOI: 10.1016/j.metabol.2018.03.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/04/2018] [Accepted: 03/22/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Acyl-CoA Synthetase Long Chain 5 (ACSL5) gene's rs2419621 T/C polymorphism was associated with ACSL5 mRNA expression and response to lifestyle interventions. However, the mechanistic understanding of the increased response in T allele carriers is lacking. Study objectives were to investigate the effect of rs2419621 genotype and ACSL5 human protein isoforms on fatty acid oxidation and respiration. METHODS Human ACSL5 overexpression in C2C12 mouse myoblasts was conducted to measure 14C palmitic acid oxidation and protein isoform localization in vitro. 14C palmitic acid oxidation studies and Western blot analysis of ACSL5 proteins were carried out in rectus abdominis primary myotubes from 5 rs2419621 T allele carriers and 4 non-carriers. In addition, mitochondrial high-resolution respirometry was conducted on vastus lateralis muscle biopsies from 4 rs2419621 T allele carriers and 4 non-carriers. Multiple linear regression analysis was conducted to test the association between rs2419621 genotype and respiratory quotient related pre- and post-lifestyle intervention measurements in postmenopausal women with overweight or obesity. RESULTS In comparison to rs2419621 non-carriers, T allele carriers displayed higher levels of i) 683aa ACSL5 isoform, localized mainly in the mitochondria, playing a greater role in fatty acid oxidation in comparison to the 739aa protein isoform ii) in vitro CO2 production in rectus abdominis primary myotubes iii) in vivo fatty acid oxidation and lower carbohydrate oxidation post-intervention iv) ex vivo complex I and II tissue respiration in vastus lateralis muscle. CONCLUSIONS These results support the conclusion that rs2419621 T allele carriers, are more responsive to lifestyle interventions partly due to an increase in the short ACSL5 protein isoform, increasing cellular, tissue and whole-body fatty acid utilization. With the increasing effort to develop personalized medicine to combat obesity, our findings provide additional insight into genotypes that can significantly affect whole body metabolism and response to lifestyle interventions.
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Affiliation(s)
- Abishankari Rajkumar
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
| | - Awa Liaghati
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
| | - Jessica Chan
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
| | - Gilles Lamothe
- Department of Mathematics and Statistics, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
| | - Robert Dent
- The Ottawa Hospital, Ottawa, ON K1H 8L6, Canada.
| | - Éric Doucet
- School of Human Kinetics, University of Ottawa, Ottawa, ON K1S 5L5, Canada.
| | - Rémi Rabasa-Lhoret
- Département de Nutrition, Université de Montréal, Montréal, QC H3T 1A8, Canada; Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada.
| | - Denis Prud'homme
- School of Human Kinetics, University of Ottawa, Ottawa, ON K1S 5L5, Canada; Institut de Recherche de l'Hôpital Montfort, Hôpital Montfort, Ottawa, ON K1K 0T1, Canada.
| | - Mary-Ellen Harper
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
| | - Frédérique Tesson
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
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Effect of the menopausal transition and physical activity energy expenditure on inflammatory markers: a MONET group study. Menopause 2018; 23:1330-1338. [PMID: 27529462 DOI: 10.1097/gme.0000000000000716] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Menopausal transition is usually associated with changes in body composition and a decrease in physical activity energy expenditure. Adipose tissue, especially visceral fat, is an important source of inflammatory markers, which contributes to the development of a proinflammatory state. Conversely, high levels of physical activity and exercise have an anti-inflammatory effect. This study aimed to investigate the impact of menopausal transition and physical activity on inflammatory makers. METHODS One hundred two healthy premenopausal women participated in a 5-year longitudinal study. The present secondary analyses were performed on 58 participants with a full set of data (age: 49.6 ± 1.7 y; body mass index: 23.3 ± 2.4 kg/m). Measures included body composition, waist circumference, fasting glucose and insulin levels, insulin sensitivity, plasma lipid levels, cardiorespiratory fitness, physical activity energy expenditure, and inflammatory markers. RESULTS Repeated measure analyses revealed, after the 5-year follow-up, significant increases in ferritin, interleukin-8 (IL-8), and soluble tumor necrosis factor-α receptor 1 and 2 (sTNFR1 and sTNFR2) (P < 0.001), and a significant decrease in serum high-sensitive C-reactive protein (P < 0.05). Positive correlations were observed between change (year 5 to baseline) in waist circumference and changes in high-sensitive C-reactive protein, orosomucoid (ORM), haptoglobin, and apolipoprotein B (ApoB) levels (0.26 ≤ r ≤ 0.34; P < 0.05), and between change in peripheral fat and changes in ORM, ApoB, sTNFR2 (0.28 ≤ r ≤ 0.39; P < 0.05). On the contrary, negative correlations were found between change in physical activity energy expenditure and changes in ORM as well as ApoB (r = -0.35 and r = -0.36, respectively; P < 0.05). No significant correlations were found between change in cardiorespiratory fitness, glucose, insulin, insulin sensitivity and changes in inflammatory markers. Multiple regression analyses showed that changes in physical activity energy expenditure and waist circumference together explained 23% of the individual variance of change in ORM (P < 0.05). Also, change in physical activity energy expenditure explained 15% (P < 0.05) of the variance of change in ApoB. Fat mass change explained 15% (P < 0.05) of the variance of change in IL-8, and finally change in peripheral fat explained 15% of variance of change in sTNFR2 (P < 0.05). CONCLUSIONS The present study indicates that the menopausal transition is accompanied by an increase in inflammatory markers, namely ferritin, IL-8, sTNFR1, and sTNFR2. The increase in IL-8 and sTNFR2 with menopause could be explained, in part, by changes in fat mass and peripheral fat, respectively.
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Cronin BE, Allsopp PJ, Slevin MM, Magee PJ, McCaffrey TA, Livingstone MBE, Strain JJ, McSorley EM. The effect of weight change over a 2-year period on inflammatory status in postmenopausal women. Eur J Clin Nutr 2017; 72:388-393. [DOI: 10.1038/s41430-017-0014-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 01/19/2023]
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Diniz TA, Rossi FE, Silveira LS, Neves LM, Fortaleza ACDS, Christofaro DGD, Lira FS, Freitas-Junior IF. The role of moderate-to-vigorous physical activity in mediating the relationship between central adiposity and immunometabolic profile in postmenopausal women. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2017; 61:354-360. [PMID: 28977210 PMCID: PMC10118934 DOI: 10.1590/2359-3997000000259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 10/18/2016] [Indexed: 11/22/2022]
Abstract
OBJECTIVES To analyze the role of moderate-to-vigorous physical activity (MVPA) in mediating the relationship between central adiposity and immune and metabolic profile in postmenopausal women. MATERIALS AND METHODS Cross-sectional study comprising 49 postmenopausal women (aged 59.26 ± 8.32 years) without regular physical exercise practice. Body composition was measured by dual-energy X-ray absorptiometry. Fasting blood samples were collected for assessment of nonesterified fatty acids, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), adiponectin, insulin and estimation of insulin resistance (HOMA-IR). Physical activity level was assessed with an accelerometer (Actigraph GTX3x) and reported as a percentage of time spent in sedentary behavior and MVPA. All analyses were performed using the software SPSS 17.0, with a significance level set at 5%. RESULTS Sedentary women had a positive relationship between trunk fat and IL-6 (rho = 0.471; p = 0.020), and trunk fat and HOMA-IR (rho = 0.418; p = 0.042). Adiponectin and fat mass (%) were only positively correlated in physically active women (rho = 0.441; p = 0.027). Physically active women with normal trunk fat values presented a 14.7% lower chance of having increased HOMA-IR levels (β [95%CI] = 0.147 [0.027; 0.811]). CONCLUSIONS The practice of sufficient levels of MVPA was a protective factor against immunometabolic disorders in postmenopausal women.
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Affiliation(s)
- Tiego A Diniz
- Universidade de São Paulo (USP), São Paulo, SP, Brasil.,Grupo de Imunometabolismo e Exercício, Departamento de Educação Física, Universidade Estadual Paulista (Unesp), Presidente Prudente, SP, Brasil
| | - Fabricio E Rossi
- Grupo de Imunometabolismo e Exercício, Departamento de Educação Física, Universidade Estadual Paulista (Unesp), Presidente Prudente, SP, Brasil
| | - Loreana S Silveira
- Grupo de Imunometabolismo e Exercício, Departamento de Educação Física, Universidade Estadual Paulista (Unesp), Presidente Prudente, SP, Brasil
| | | | - Ana Claudia de Souza Fortaleza
- Centro de Estudos e Laboratório de Avaliação e Prescrição de Atividades Motoras (Celapam), Departamento de Educação Física, Unesp, Presidente Prudente, SP, Brasil
| | - Diego G D Christofaro
- Grupo de Estudos em Atividade Física e Saúde, Departamento de Educação Física, Unesp, Presidente Prudente, SP, Brasil
| | - Fabio S Lira
- Grupo de Imunometabolismo e Exercício, Departamento de Educação Física, Universidade Estadual Paulista (Unesp), Presidente Prudente, SP, Brasil
| | - Ismael F Freitas-Junior
- Centro de Estudos e Laboratório de Avaliação e Prescrição de Atividades Motoras (Celapam), Departamento de Educação Física, Unesp, Presidente Prudente, SP, Brasil
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Vella CA, Allison MA, Cushman M, Jenny NS, Miles MP, Larsen B, Lakoski SG, Michos ED, Blaha MJ. Physical Activity and Adiposity-related Inflammation: The MESA. Med Sci Sports Exerc 2017; 49:915-921. [PMID: 27977529 PMCID: PMC5392139 DOI: 10.1249/mss.0000000000001179] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
PURPOSE Physical activity is associated with decreased adiposity-related inflammation in adults. Whether this association is independent of central obesity is unknown but important for understanding the mechanisms associated with reducing cardiometabolic disease risk through physical activity. This study examined whether associations of physical activity and obesity-related inflammatory markers were independent of central adiposity. METHODS Between 2002 and 2005, 1970 participants from the Multi-Ethnic Study of Atherosclerosis completed detailed health history and physical activity questionnaires, underwent physical measurements including computed tomography to quantify abdominal visceral and subcutaneous fat, and measurements of adiponectin, leptin, interleukin-6, tumor necrosis factor-alpha, and resistin. Statistical analyses included analysis of covariance and multivariable-adjusted regression. RESULTS The mean (range) age of participants was 64.7 (55-84) yr and 50% were women. After adjustment for age and sex, and compared with the lowest quartile, inflammatory markers in the highest quartile of moderate-to-vigorous physical activity were 16% higher for adiponectin and 30%, 26%, and 9% lower for leptin, interleukin-6, and resistin, respectively (P < 0.05 for all). In linear regression adjusted for demographics, dyslipidemia, hypertension, diabetes, smoking, glomerular filtration rate, renin, and aldosterone, each standard deviation increment of moderate-to-vigorous physical activity was associated with significantly higher levels of adiponectin (β = 0.04) and lower levels of leptin (β = -0.06), interleukin-6 (β = -0.08), and resistin (β = -0.05, P < 0.05 for all). The associations with leptin, interleukin-6, and resistin were independent of total and central adiposity (P < 0.05), whereas the association between moderate-to-vigorous physical activity and adiponectin was attenuated by central adiposity (P > 0.05). There were no significant interactions by race/ethnicity or sex. CONCLUSIONS Moderate-to-vigorous physical activity was associated with a more favorable profile of inflammatory markers, independent of relevant cardiometabolic disease risk factors including central obesity.
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Affiliation(s)
- Chantal A Vella
- 1Department of Movement Sciences, University of Idaho, Moscow, ID; 2Department of Family and Preventive Medicine, University of California San Diego, San Diego, CA; 3Department of Medicine, Hematology/Oncology Division, University of Vermont, Colchester, VT; 4Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Colchester, VT; 5Department of Health and Human Development, Montana State University, Bozeman, MT; 6Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, TX; and 7Division of Cardiology, Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins School of Medicine, Baltimore, MD
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Elisha B, Disse E, Chabot K, Taleb N, Prud'homme D, Bernard S, Rabasa-Lhoret R, Bastard JP. Relative contribution of muscle and liver insulin resistance to dysglycemia in postmenopausal overweight and obese women: A MONET group study. ANNALES D'ENDOCRINOLOGIE 2016; 78:1-8. [PMID: 27931981 DOI: 10.1016/j.ando.2016.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 09/21/2016] [Accepted: 10/19/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The relative contribution of muscle and liver insulin resistance (IR) in the development of dysglycemia and metabolic abnormalities is difficult to establish. The present study aimed to investigate the relative contribution of muscle IR vs. liver IR to dysglycemia in non-diabetic overweight or obese postmenopausal women and to determine differences in body composition and cardiometabolic indicators associated with hepatic or muscle IR. MATERIAL AND METHODS Secondary analysis of 156 non-diabetic overweight or obese postmenopausal women. Glucose tolerance was measured using an oral glucose tolerance test. Whole-body insulin sensitivity (IS) was determined as glucose disposal rate during a euglycemic-hyperinsulinemic clamp. Muscle and liver IR have been calculated using Abdul-Ghani et al. OGTT-derived formulas. Participant's body compositions as well as cardiometabolic risk indicators were also determined. RESULTS Overall, 57 (36.5%) of patients had dysglycemia, among them 25 (16.0%); 21 (13.5%); 11 (7.1%) had impaired fasting glycemia, impaired glucose tolerance and combined glucose intolerance respectively. Fifty-three (34.0%) participants were classified as combined IS while on the opposite 51 participants (32.7%) were classified as combined IR and 26 (16.7%) participants had either muscle IR or liver IR. For similar body mass index and total fat mass, participants with liver IR were more likely to have lower whole-body IS, dysglycemia and higher visceral fat, liver fat index, triglycerides and alanine aminotransferase than participants with muscle IR. CONCLUSION In the present study, the presence of liver IR is associated with a higher prevalence of dysglycemia, ectopic fat accumulation and metabolic abnormalities than muscle IR.
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Affiliation(s)
- Belinda Elisha
- Department of Nutrition, Université de Montréal, Montréal, Québec, Canada; Department of Medicine, Institut de Recherches Cliniques de Montréal (IRCM), Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Emmanuel Disse
- Centre de Recherche en Nutrition Humaine, Rhône Alpes, Centre Hospitalier Lyon Sud, 69310 Pierre-Bénite, France
| | - Katherine Chabot
- Department of Nutrition, Université de Montréal, Montréal, Québec, Canada; Department of Medicine, Institut de Recherches Cliniques de Montréal (IRCM), Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Nadine Taleb
- Department of Nutrition, Université de Montréal, Montréal, Québec, Canada; Department of Medicine, Institut de Recherches Cliniques de Montréal (IRCM), Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Denis Prud'homme
- Institut de Recherche de l'Hôpital Montfort, Ottawa, Ontario, Canada; School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Sophie Bernard
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Rémi Rabasa-Lhoret
- Department of Nutrition, Université de Montréal, Montréal, Québec, Canada; Department of Medicine, Institut de Recherches Cliniques de Montréal (IRCM), Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Jean-Philippe Bastard
- Service de Biochimie et Hormonologie, AP-HP, Hôpital Tenon, UF Biomarqueurs Inflammatoires et Métaboliques, 75020 Paris, France; Inserm UMR_S938, ICAN, CDR Saint-Antoine, 75012 Paris, France; UMR_S 938, Sorbonne Universités, UPMC Université Paris 06, 75005 Paris, France.
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Rajkumar A, Lamothe G, Bolongo P, Harper ME, Adamo K, Doucet É, Rabasa-Lhoret R, Prud'homme D, Tesson F. Acyl-CoA synthetase long-chain 5 genotype is associated with body composition changes in response to lifestyle interventions in postmenopausal women with overweight and obesity: a genetic association study on cohorts Montréal-Ottawa New Emerging Team, and Complications Associated with Obesity. BMC MEDICAL GENETICS 2016; 17:56. [PMID: 27515448 PMCID: PMC4982019 DOI: 10.1186/s12881-016-0320-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 08/02/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Genetic studies on Acyl-CoA Synthetase Long-Chain 5 (ACSL5) demonstrate an association between rs2419621 genotype and rate of weight loss in women with obesity in response to caloric restriction. Our objectives were to (1) confirm results in two different populations of women with overweight and obesity (2) study rs2419621's influence on body composition parameters of women with overweight and obesity following lifestyle interventions. METHODS rs2419621 genotype was determined in women with overweight and obesity who participated in the Montréal-Ottawa New Emerging Team (MONET n = 137) and Complications Associated with Obesity (CAO n = 37) studies. Genotyping was done using TaqMan MGB probe-based assay. Multiple linear regression analyses were used to test for associations. RESULTS When studying women with overweight and obesity, rs2419621 [T] allele carriers had a significantly greater decrease in visceral fat, absolute and percent fat mass and a greater increase in percent lean mass in response to lifestyle intervention in comparison to non-carriers. Studying only individuals with obesity showed similar results with rs2419621 [T] allele carriers also displaying a significantly greater decrease in body mass index following the lifestyle intervention in comparison to non-carriers. CONCLUSION Women with overweight and obesity carrying the ACSL5 rs2419621 [T] allele are more responsive to lifestyle interventions in comparison to non-carriers. Conducting such genetic association studies can aid in individualized treatments/interventions catered towards an individual's genotype.
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Affiliation(s)
- Abishankari Rajkumar
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada.,Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Gilles Lamothe
- Department of Mathematics and Statistics, University of Ottawa, Ottawa, ON, Canada
| | - Pierrette Bolongo
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Mary-Ellen Harper
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Kristi Adamo
- CHEO Research Institute, Ottawa, ON, Canada.,Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada.,School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
| | - Éric Doucet
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
| | - Remi Rabasa-Lhoret
- Départment de Nutrition, Université de Montréal, Montreal, QC, Canada.,Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - Denis Prud'homme
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.,Institut de recherche de l'Hôpital Montfort, Hôpital Montfort, Ottawa, ON, Canada
| | - Frédérique Tesson
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, Canada. .,Faculty of Health Sciences, 451 Smyth, Ottawa, ON, K1H 8M5, Canada.
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Diniz TA, Neves LM, Rossi FE, Fortaleza ACDS, Rosa CS, Tebar WR, Christofaro DGD, Freitas-Junior IF. Weekly time spent in the standing position is independently related to a better quality of life in postmenopausal women. Eur J Obstet Gynecol Reprod Biol 2016; 199:150-5. [PMID: 26930043 DOI: 10.1016/j.ejogrb.2016.02.011] [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] [Received: 10/12/2015] [Revised: 01/14/2016] [Accepted: 02/11/2016] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To analyze the relationship between standing, sitting and reclining behaviors and quality of life in postmenopausal women. STUDY DESIGN Cross-sectional study composed of forty postmenopausal women (aged 59.58±5.32) who do not practice regular physical exercise. Body composition was measured using Dual-energy X-ray absorptiometry and quality of life by the Short Form 36 Health Survey (SF-36). Physical activity level was assessed using an accelerometer (Actigraph GTX3x) and is reported as minutes per week of moderate-to-vigorous physical activity (MVPA). Inclinometer analysis was also measured using this accelerometer model and reported as a weekly percentage of time spent standing, sitting and reclining. All analyses were performed using SPSS 17.0 software with the significance level set at 5%. RESULTS The percentage of time in the standing position was lower among women with poor quality of life (p<0.05). Adjusted analysis (age, years since menopause, percentage of fat mass, MVPA and occupation status) was used to evaluate the relationship between quality of life and accelerometer inclinometer measures. The relationship between time standing and general health status (β=0.353; 95%CI=0.017; 0.377), social function (β=0.429; 95%CI=0.060; 0.396) and overall score (β=0.336; 95%CI=0.015; 0.442) were statistically significant. The relationship between the reclining position and both overall score (β=-0.320; 95%CI=-0.492; 0.006) and emotional aspects (β=-0.337; 95%CI=-0.191; 0.001) showed a tendency to present statistical significance. CONCLUSION In summary, our results suggest that postmenopausal women who spend more time in the standing position have a better overall quality of life regardless of confounders.
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Affiliation(s)
- Tiego A Diniz
- Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil; Exercise and Immunometabolism Research Group, Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil.
| | - Lucas M Neves
- Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil.
| | - Fabricio E Rossi
- Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil; Exercise and Immunometabolism Research Group, Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil.
| | - Ana Claudia de S Fortaleza
- Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil.
| | - Clara Suemi Rosa
- Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil.
| | - William Rodrigues Tebar
- Institute of Bioscience, Department of Physical Education, Sao Paulo State University (UNESP), Rio Claro, SP, Brazil.
| | | | - Ismael F Freitas-Junior
- Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900 Presidente Prudente, SP, Brazil.
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Derry HM, Padin AC, Kuo JL, Hughes S, Kiecolt-Glaser JK. Sex Differences in Depression: Does Inflammation Play a Role? Curr Psychiatry Rep 2015; 17:78. [PMID: 26272539 PMCID: PMC4869519 DOI: 10.1007/s11920-015-0618-5] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Women become depressed more frequently than men, a consistent pattern across cultures. Inflammation plays a key role in initiating depression among a subset of individuals, and depression also has inflammatory consequences. Notably, women experience higher levels of inflammation and greater autoimmune disease risk compared to men. In the current review, we explore the bidirectional relationship between inflammation and depression and describe how this link may be particularly relevant for women. Compared to men, women may be more vulnerable to inflammation-induced mood and behavior changes. For example, transient elevations in inflammation prompt greater feelings of loneliness and social disconnection for women than for men, which can contribute to the onset of depression. Women also appear to be disproportionately affected by several factors that elevate inflammation, including prior depression, somatic symptomatology, interpersonal stressors, childhood adversity, obesity, and physical inactivity. Relationship distress and obesity, both of which elevate depression risk, are also more strongly tied to inflammation for women than for men. Taken together, these findings suggest that women's susceptibility to inflammation and its mood effects may contribute to sex differences in depression. Depression continues to be a leading cause of disability worldwide, with women experiencing greater risk than men. Due to the depression-inflammation connection, these patterns may promote additional health risks for women. Considering the impact of inflammation on women's mental health may foster a better understanding of sex differences in depression, as well as the selection of effective depression treatments.
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Affiliation(s)
- Heather M. Derry
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH, USA
,Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Avelina C. Padin
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH, USA
,Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Jennifer L. Kuo
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH, USA
,Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Spenser Hughes
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH, USA
,Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Janice K. Kiecolt-Glaser
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH, USA
,Department of Psychology, The Ohio State University, Columbus, OH, USA
,Department of Psychiatry and Behavioral Health, The Ohio State University College of Medicine, Columbus, OH, USA
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14
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Diniz TA, Fortaleza ACS, Buonani C, Rossi FE, Neves LM, Lira FS, Freitas-Junior IF. Relationship between moderate-to-vigorous physical activity, abdominal fat and immunometabolic markers in postmenopausal women. Eur J Obstet Gynecol Reprod Biol 2015; 194:178-82. [PMID: 26412352 DOI: 10.1016/j.ejogrb.2015.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/08/2015] [Accepted: 09/07/2015] [Indexed: 12/17/2022]
Abstract
OBJECTS To assess the burden of levels of physical activity, non-esterified fatty acids (NEFA), triacylglycerol and abdominal fat on the immunometabolic profile of postmenopausal women. STUDY DESIGN Forty-nine postmenopausal women [mean age 59.43 (standard deviation 5.61) years] who did not undertake regular physical exercise participated in this study. Body composition was assessed using dual-energy X-ray absorptiometry, and levels of NEFA, tumour necrosis factor-α, adiponectin, insulin and triacylglycerol were assessed using fasting blood samples. The level of physical activity was assessed using an accelerometer (Actigraph GTX3x), and reported as counts/min, time spent undertaking sedentary activities and time spent undertaking moderate-to-vigorous physical activity (MVPA). The following conditions were considered to be risk factors: (i) sedentary lifestyle (<150min of MVPA per week); (ii) high level (above median) of abdominal fat; and (iii) hypertriacylglycerolaemia (<150mg/dl of triacylglycerol). RESULTS In comparison with active women, sedentary women had higher levels of body fat (%) (p=0.041) and NEFA (p=0.064). Women with higher levels of abdominal fat had impaired insulin resistance (HOMA-IR) (p=0.016) and spent more time undertaking sedentary activities (p=0.043). Moreover, the women with two risk factors or more had high levels of NEFA and HOMA-IR (p<0.05), as well as an eight-fold higher risk of a high level of NEFA, independent of age (p<0.05). No significant relationship was found between levels of physical activity, abdominal fat, tumour necrosis factor-α and adiponectin (p>0.05). CONCLUSION Postmenopausal women with a combination of hypertriacylglycerolaemia, a high level of abdominal fat and a sedentary lifestyle are more likely to have metabolic disturbances.
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Affiliation(s)
- T A Diniz
- Centre of Studies and Laboratory of Evaluation and Prescription of Motor Activities, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil; Exercise and Immunometabolism Research Group, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil.
| | - A C S Fortaleza
- Centre of Studies and Laboratory of Evaluation and Prescription of Motor Activities, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil
| | - C Buonani
- Centre of Studies and Laboratory of Evaluation and Prescription of Motor Activities, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil
| | - F E Rossi
- Centre of Studies and Laboratory of Evaluation and Prescription of Motor Activities, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil; Exercise and Immunometabolism Research Group, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil
| | - L M Neves
- Centre of Studies and Laboratory of Evaluation and Prescription of Motor Activities, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil
| | - F S Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil
| | - I F Freitas-Junior
- Centre of Studies and Laboratory of Evaluation and Prescription of Motor Activities, Department of Physical Education, Sao Paulo State University, Presidente Prudente, SP, Brazil
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15
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Normandin E, Doucet E, Rabasa-Lhoret R, Brochu M. Effects of a weight loss program on body composition and the metabolic profile in obese postmenopausal women displaying various obesity phenotypes: a MONET group study. Appl Physiol Nutr Metab 2015; 40:695-702. [DOI: 10.1139/apnm-2014-0451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Obesity is a heterogeneous condition, since the metabolic profile may differ greatly from one individual to another. The objective of this study was to compare the effect of a 6-month diet-induced weight loss program on body composition and the metabolic profile in obese individuals displaying different obesity phenotypes. Secondary analyses were done on 129 obese (% body fat: 46% ± 4%) postmenopausal women (age: 57 ± 4 years). Outcome measures included body composition, body fat distribution, glucose homeostasis, fasting lipids, and blood pressure. Obesity phenotypes were determined based on lean body mass (LBM) index (LBMI = LBM/height2) and visceral fat (VF) accumulation, as follows: 1, lower VF and lower LBMI (n = 35); 2, lower VF and higher LBMI (n = 19); 3, higher VF and lower LBMI (n = 14); and 4, higher VF and higher LBMI (n = 61). All groups had significantly improved measures of body composition after the intervention (P < 0.0001). Greater decreases in LBM and LBMI were observed in the higher LBMI groups than in the lower LBMI groups (P < 0.0001). Similarly, decreases in VF were greater in the higher VF groups than in the lower VF groups (P < 0.05). Overall, fasting insulin levels and glucose disposal improved following the intervention, with higher LBMI groups showing a trend for greater improvements (P = 0.06 and 0.07, respectively). Overall, no difference was observed among the different obesity phenotypes regarding improvements in the metabolic profile in response to weight loss. Individuals displaying higher VF or higher LBMI at baseline experienced significantly greater decreases for these variables after the intervention.
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Affiliation(s)
- Eve Normandin
- Faculty of Physical Activity Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
- Research Centre on Aging, Institute of Geriatrics of Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Eric Doucet
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
| | - Rémi Rabasa-Lhoret
- Department of Nutrition, Université de Montréal, Montreal, QC, Canada
- Montreal Diabetes Research Centre, Montreal, QC, Canada
- Institut de recherches cliniques de Montréal, Montreal, QC, Canada
| | - Martin Brochu
- Faculty of Physical Activity Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
- Research Centre on Aging, Institute of Geriatrics of Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
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16
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Poulsen MM, Fjeldborg K, Ornstrup MJ, Kjær TN, Nøhr MK, Pedersen SB. Resveratrol and inflammation: Challenges in translating pre-clinical findings to improved patient outcomes. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1124-36. [DOI: 10.1016/j.bbadis.2014.12.024] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/16/2014] [Accepted: 12/21/2014] [Indexed: 12/14/2022]
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17
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McFarlin BK, Venable AS, Henning AL, Prado EA, Best Sampson JN, Vingren JL, Hill DW. Natural cocoa consumption: Potential to reduce atherogenic factors? J Nutr Biochem 2015; 26:626-32. [PMID: 25769436 DOI: 10.1016/j.jnutbio.2014.12.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 12/19/2014] [Accepted: 12/19/2014] [Indexed: 12/16/2022]
Abstract
Short-term consumption of flavanol-rich cocoa has been demonstrated to improve various facets of vascular health. The purpose of the present study was to determine the effect of 4 weeks of natural cocoa consumption on selected cardiovascular disease (CVD) biomarkers in young (19-35 years) women of differing body mass indices (BMI; normal, overweight or obese). Subjects (n = 24) consumed a natural cocoa-containing product (12.7 g natural cocoa, 148 kcal/serving) or an isocaloric cocoa-free placebo daily for 4 weeks in a random, double-blind manner with a 2-week washout period between treatment arms. Fasted (>8-h) blood samples were collected before and after each 4-week period. Serum was analyzed to determine lipid profile (chemistry analyzer) and CVD biomarkers (26 biomarkers). EDTA-treated blood was used to assess monocytes (CD14, CD16, v11b and CD62L), while citrate-treated blood was used to measure changes in endothelial microparticles (EMPs; CD42a-/45-/144+) by flow cytometry. Natural cocoa consumption resulted in a significant decrease in haptoglobin (P = .034), EMP concentration (P = .017) and monocyte CD62L (P = .047) in obese compared to overweight and normal-weight subjects. Natural cocoa consumption regardless of BMI group was associated with an 18% increase in high-density lipoprotein (P = .020) and a 60% decrease in EMPs (P = .047). Also, obese subjects experienced a 21% decrease in haptoglobin (P = .034) and a 24% decrease in monocyte CD62L expression in (P = .047) following 4 weeks of natural cocoa consumption. Collectively, these findings indicate that acute natural cocoa consumption was associated with decreased obesity-related disease risk. More research is needed to assess the stability of the observed short-term changes.
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Affiliation(s)
- Brian K McFarlin
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA; Department of Biological Sciences, University of North Texas, Denton, TX, USA.
| | - Adam S Venable
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA; Department of Biological Sciences, University of North Texas, Denton, TX, USA
| | - Andrea L Henning
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA; Department of Biological Sciences, University of North Texas, Denton, TX, USA
| | - Eric A Prado
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA; Department of Biological Sciences, University of North Texas, Denton, TX, USA
| | - Jill N Best Sampson
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA; Department of Biological Sciences, University of North Texas, Denton, TX, USA
| | - Jakob L Vingren
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA; Department of Biological Sciences, University of North Texas, Denton, TX, USA
| | - David W Hill
- Applied Physiology Laboratory, University of North Texas, Denton, TX, USA
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18
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Gauthier MS, Pérusse JR, Lavoie MÈ, Sladek R, Madiraju SRM, Ruderman NB, Coulombe B, Prentki M, Rabasa-Lhoret R. Increased subcutaneous adipose tissue expression of genes involved in glycerolipid-fatty acid cycling in obese insulin-resistant versus -sensitive individuals. J Clin Endocrinol Metab 2014; 99:E2518-28. [PMID: 25210878 PMCID: PMC5393488 DOI: 10.1210/jc.2014-1662] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT A subpopulation of obese individuals remains insulin sensitive (ISO). They represent a unique human model to investigate factors underlying insulin resistance (IR) without the confounding effect of major differences in weight/adiposity. Altered fatty-acid (FA) metabolism in sc adipose tissue (SAT) contributes to obesity-associated IR. OBJECTIVE To test the hypothesis that ISO and body mass index-matched insulin-resistant obese (IRO) patients demonstrate differential SAT expression profiles of genes involved in glycerolipid-FA metabolism and that weight loss-induced improvement of IR ameliorates these changes. DESIGN AND SETTING A cross-sectional and longitudinal study. PATIENTS AND INTERVENTION Thirty-eight nondiabetic obese women were stratified into ISO (n = 25) or IRO (n = 13) groups based on hyperinsulinemic-euglycemic clamp results. Subjects were studied before and after a 6-month hypocaloric diet intervention. MAIN OUTCOME MEASURES mRNA (quantitative RT-PCR) and protein (mass spectrometry and immunoblots) levels were measured in SAT biopsies. RESULTS Despite having age, body mass index, and fat mass similar to ISO individuals, IRO patients had lower insulin sensitivity and glucose tolerance (P < .05). Baseline SAT mRNA and protein levels of genes involved in both the synthesis and lipolysis of glycerolipid-FAs were higher in IRO individuals (P < .05), even when groups were matched for visceral adipose tissue content. The dietary intervention resulted in approximately 6% weight loss in both the IRO and ISO groups (P < .05) but only ameliorated insulin sensitivity in IRO individuals (P < .05). Likewise, the intervention reduced the expression of most glycerolipid-FA metabolism genes (P < .05), with expression levels in IRO individuals being restored to ISO levels. CONCLUSIONS Increased SAT expression of genes involved in both the synthesis and hydrolysis of glycerolipid-FAs is closely associated with IR in obese women. The results suggest that enhanced glycerolipid-FA cycling in SAT contributes to obesity-associated IR.
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Affiliation(s)
- Marie-Soleil Gauthier
- Institut de recherches cliniques de Montréal (M.-S.G., J.R.P., M.-E.L., B.C., R.R.-L.), Montréal, QC H2W 1R7, Canada; Montreal Diabetes Research Center at the Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM) (M.-S.G., M.-E.L., R.S., S.R.M.M., M.P., R.R.-L.), Montréal, QC H2X 0A9, Canada; McGill University and Centre d'Innovation Génome Québec (R.S.), Montréal, QC H3A 0G1, Canada; Molecular Nutrition Unit at the CRCHUM (S.R.M.M., M.P.), Montréal, QC H2X 0A9, Canada; Diabetes and Metabolism Research Unit (N.B.R.), and Department of Medicine and Section of Endocrinology (N.B.R.), Boston University School of Medicine, Boston, Massachusetts 02118; Departments of Biochemistry (B.C., M.P.) and Nutrition (M.-E.L., M.P., R.R.-L.), Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
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19
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Tan P, Shamansurova Z, Bisotto S, Michel C, Gauthier MS, Rabasa-Lhoret R, Nguyen TMD, Schiller PW, Gutkowska J, Lavoie JL. Impact of the prorenin/renin receptor on the development of obesity and associated cardiometabolic risk factors. Obesity (Silver Spring) 2014; 22:2201-9. [PMID: 25044950 DOI: 10.1002/oby.20844] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 06/26/2014] [Accepted: 06/27/2014] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Obesity is a worldwide epidemic and current treatments have limited success thus, novel therapies are warranted. Our objective was to determine whether the prorenin/renin receptor [(P)RR] is implicated in obesity. METHODS Mice received a normal or high-fat/high-carbohydrate diet with the handle region peptide (HRP), a (P)RR blocker, or saline for 10 weeks. Post-menopausal non-diabetic obese women were enrolled in the Complication Associated with Obesity Study and were classified as insulin-resistant (IRO) or -sensitive (ISO) using a hyperinsulinemic-euglycemic clamp. RESULTS In mice, obesity increased the (P)RR by twofold in adipose tissue. Likewise, renin increased by at least twofold. The HRP reduced weight gain in obese mice by 20% associated to a 19% decrease in visceral fat. This was accompanied by a 48% decrease in leptin mRNA in fat and 33% decrease in circulating leptin. Inflammatory markers were also decreased by the HRP treatment. HRP normalized triglyceridemia and reduced insulinemia by 34% in obese mice. Interestingly, we observed a 33% increase in (P)RR mRNA in the fat of IRO women compared to ISO. CONCLUSIONS This is the first report of a potential implication in obesity of the (P)RR which may be a novel therapeutic target.
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Affiliation(s)
- Paul Tan
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM); Department of Biochemistry and Molecular Medicine of the Université de Montréal; Montreal Diabetes Research Center
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Hajishengallis G. Aging and its Impact on Innate Immunity and Inflammation: Implications for Periodontitis. J Oral Biosci 2014; 56:30-37. [PMID: 24707191 DOI: 10.1016/j.job.2013.09.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The elderly exhibit increased susceptibility to a number of inflammatory or degenerative pathologies. Aging is similarly thought to be associated with increased prevalence and severity of periodontitis, although the underlying causes are poorly understood. Among the plausible mechanisms whereby aging could contribute to increased susceptibility to periodontitis are age-dependent alterations in the innate immune and inflammatory status of the host. This hypothesis is supported by studies in humans and animal models outlined in this Review. Indeed, innate immune cells isolated from elderly subjects exhibit age-related cell-intrinsic defects that could predispose the elderly to deregulated immune and inflammatory responses. Moreover, the investigation of age-related alterations in the tissue environment where recruited inflammatory cells ultimately function could provide complementary, if not better, insights into the impact of aging on periodontitis. Integrative approaches combining in vitro and in vivo mechanistic models are underway and can potentially contribute to targeted molecular therapies that can reverse or mitigate the effects of aging on periodontitis and other inflammatory diseases.
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Affiliation(s)
- George Hajishengallis
- Department of Microbiology, University of Pennsylvania, School of Dental Medicine, Philadelphia, Pennsylvania, PA 19104, USA
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Silva TR, Alves BC, Maturana MA, Spritzer PM. Healthier Dietary Pattern and Lower Risk of Metabolic Syndrome in Physically Active Postmenopausal Women. J Am Coll Nutr 2013; 32:287-95. [DOI: 10.1080/07315724.2013.826111] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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You T, Arsenis NC, Disanzo BL, Lamonte MJ. Effects of exercise training on chronic inflammation in obesity : current evidence and potential mechanisms. Sports Med 2013; 43:243-56. [PMID: 23494259 DOI: 10.1007/s40279-013-0023-3] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Chronic, systemic inflammation is an independent risk factor for several major clinical diseases. In obesity, circulating levels of inflammatory markers are elevated, possibly due to increased production of pro-inflammatory cytokines from several tissues/cells, including macrophages within adipose tissue, vascular endothelial cells and peripheral blood mononuclear cells. Recent evidence supports that adipose tissue hypoxia may be an important mechanism through which enlarged adipose tissue elicits local tissue inflammation and further contributes to systemic inflammation. Current evidence supports that exercise training, such as aerobic and resistance exercise, reduces chronic inflammation, especially in obese individuals with high levels of inflammatory biomarkers undergoing a longer-term intervention. Several studies have reported that this effect is independent of the exercise-induced weight loss. There are several mechanisms through which exercise training reduces chronic inflammation, including its effect on muscle tissue to generate muscle-derived, anti-inflammatory 'myokine', its effect on adipose tissue to improve hypoxia and reduce local adipose tissue inflammation, its effect on endothelial cells to reduce leukocyte adhesion and cytokine production systemically, and its effect on the immune system to lower the number of pro-inflammatory cells and reduce pro-inflammatory cytokine production per cell. Of these potential mechanisms, the effect of exercise training on adipose tissue oxygenation is worth further investigation, as it is very likely that exercise training stimulates adipose tissue angiogenesis and increases blood flow, thereby reducing hypoxia and the associated chronic inflammation in adipose tissue of obese individuals.
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Affiliation(s)
- Tongjian You
- Department of Exercise and Health Sciences, College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA 02125, USA.
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Ertek S, Cicero A. Impact of physical activity on inflammation: effects on cardiovascular disease risk and other inflammatory conditions. Arch Med Sci 2012; 8:794-804. [PMID: 23185187 PMCID: PMC3506236 DOI: 10.5114/aoms.2012.31614] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 07/21/2012] [Accepted: 08/20/2012] [Indexed: 12/16/2022] Open
Abstract
Since the 19(th) century, many studies have enlightened the role of inflammation in atherosclerosis, changing our perception of "vessel plaque due to oxidized lipoproteins", similar to a "rusted pipe", towards a disease with involvement of many cell types and cytokines with more complex mechanisms. Although "physical activity" and "physical exercise" are two terms with some differences in meaning, compared to sedentary lifestyle, active people have lower cardiovascular risk and lower inflammatory markers. Activities of skeletal muscle reveal "myokines" which have roles in both the immune system and adipose tissue metabolism. In vitro and ex-vivo studies have shown beneficial effects of exercise on inflammation markers. Meanwhile in clinical studies, some conflicting results suggested that type of activity, exercise duration, body composition, gender, race and age may modulate anti-inflammatory effects of physical exercise. Medical data on patients with inflammatory diseases have shown beneficial effects of exercise on disease activity scores, patient well-being and inflammatory markers. Although the most beneficial type of activity and the most relevant patient group for anti-inflammatory benefits are still not clear, studies in elderly and adult people generally support anti-inflammatory effects of physical activity and moderate exercise could be advised to patients with cardiovascular risk such as patients with metabolic syndrome.
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Affiliation(s)
- Sibel Ertek
- Department of Endocrinology and Metabolism, Ufuk University Medical Faculty, Ankara, Turkey
| | - Arrigo Cicero
- Internal Medicine, Aging and Kidney Disease Department, Sant'Orsola-Malpighi University Hospital, Bologna, Italy
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Shahabi P, Siest G, Herbeth B, Ndiaye NC, Visvikis-Siest S. Clinical necessity of partitioning of human plasma haptoglobin reference intervals by recently-discovered rs2000999. Clin Chim Acta 2012; 413:1618-24. [DOI: 10.1016/j.cca.2012.04.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 04/23/2012] [Accepted: 04/29/2012] [Indexed: 11/28/2022]
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Cameron JD, Riou MÈ, Tesson F, Goldfield GS, Rabasa-Lhoret R, Brochu M, Doucet É. The TaqIA RFLP is associated with attenuated intervention-induced body weight loss and increased carbohydrate intake in post-menopausal obese women. Appetite 2012; 60:111-116. [PMID: 23032305 DOI: 10.1016/j.appet.2012.09.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Revised: 08/15/2012] [Accepted: 09/15/2012] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Polymorphisms of the dopamine receptor D2 (DRD2) gene have been associated with obesity phenotypes. Our aim was to examine if the genotype of TaqIA Restriction Fragment Length Polymorphism (RFPL) was related to an attenuated weight loss response or to changes in energy expenditure (EE) and food preference before and after weight loss. methods: Obese post-menopausal women (age=57.1 ± 4.6 yr, weight=85.4 ± 15.4 kg and BMI=32.8 ± 4.5 kg/m(2)) were genotyped for TaqIA (n=127) by using PCR-RFLP analysis and categorized as possessing at least one copy of the A1 allele (A1(+)) or no copy (A1(-)). Women were randomized into two groups, caloric restriction (CR) and caloric restriction+resistance training (CRRT) and in this study were further classified as follows: A1(+)CR, A1(+)CRRT, A1-(-)CR and (-)A1(-)CRRT. Body composition, total daily EE, physical activity EE, Resting EE (REE), and energy intake were obtained at baseline and post-intervention using DXA, doubly-labeled water, indirect calorimetry, and 3-day dietary records, respectively. RESULTS Overall, all of the anthropometric variables and REE significantly decreased post-intervention (p<0.001). Women in the CRRT group lost significantly more fat mass (FM) than the CR women (p<0.05). There were significant time by group by allele interactions for attenuated body weight (BW), BMI, and FM loss for A1(+) (vs. A1(-)) in CRRT (p<0.05) and for increased % carbohydrate intake (p<0.01). CONCLUSION TaqIA genotype was associated with body weight loss post-intervention; more specifically, carriers of the A1 allele lost significantly less BW and FM than the A1(-) and had increased carbohydrate intake in the CRRT group.
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Affiliation(s)
| | - Marie-Ève Riou
- School of Human Kinetics, University of Ottawa, Ontario, Canada K1N 6N5
| | - Frédérique Tesson
- Interdisciplinary School of Health Sciences, University of Ottawa, Ontario, Canada
| | - Gary S Goldfield
- School of Human Kinetics, University of Ottawa, Ontario, Canada K1N 6N5; Children's Hospital of Eastern Research Institute, Ottawa, Ontario, Canada
| | - Rémi Rabasa-Lhoret
- Department of Nutrition, Université de Montréal, Montréal, Canada; Montreal Institute for Clinical Research (IRCM), Montréal, Canada; Montreal Diabetes Research Center (MDRC) of Centre de Recherche du centre Hospitalier de l'Université de Montréal (CR-CHUM), Montréal, Canada
| | - Martin Brochu
- Faculty of Physical Education and Sports, University of Sherbrooke, Sherbrooke, QC, Canada; Research Centre on Aging, Social Services and Health Centre, University Institute of Geriatrics of Sherbrooke, QC, Canada
| | - Éric Doucet
- School of Human Kinetics, University of Ottawa, Ontario, Canada K1N 6N5.
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Synergistic associations of physical activity and diet quality on cardiometabolic risk factors in overweight and obese postmenopausal women. Br J Nutr 2012; 109:605-14. [DOI: 10.1017/s0007114512001699] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Healthy diet and physical activity are associated with a lower cardiometabolic risk (CMR). Little is known about whether they interact to improve CMR. The purpose of the present study was to determine the synergistic associations of diet quality and physical activity energy expenditure (PAEE) on CMR factors. The present study was ana posteriorianalysis of two cross-sectional studies on 124 inactive non-diabetic postmenopausal women with a BMI ≥ 27 kg/m2. The following factors were measured: diet quality (assessed by the Canadian Healthy Eating Index (C-HEI) from a 3 d food record); PAEE (doubly labelled water); body composition (dual-energy X-ray absorptiometry, computed tomography scan); lipoprotein profile (total, HDL- and LDL-cholesterol (HDL-C and LDL-C), non-HDL-C, total cholesterol:HDL-C, TAG, apoA1, apoB, apoA1:apoB and LDL-C:apoB); insulin sensitivity (homeostasis model assessment of insulin resistance and hyperinsulinaemic–euglycaemic clamp); inflammatory markers (high-sensitivity C-reactive protein (hs-CRP), haptoglobin, orosomucoid, IL-6 and leucocyte count). The association of the interaction PAEE × C-HEI and CMR factors was evaluated by hierarchical regressions. Fat mass-adjusted ANCOVA determined the interaction between PAEE and the C-HEI. In hierarchical regressions, the interaction PAEE × C-HEI was a correlate of more favourable values of HDL-C, apoB, apoA1:apoB and LDL-C:apoB ratios, and hs-CRP, while only PAEE was a negative correlate of haptoglobin. Compared with those in the low-PAEE/low-C-HEI group, women in the high-PAEE/high-C-HEI group had 10 % higher HDL-C, 13 % lower apoB, 11 % larger LDL particles and 28 % lower hs-CRP concentrations (P< 0·05). PAEE and the C-HEI have a synergistic association with the CMR profile. These results support the integration of both diet quality and physical activity in the management of CMR.
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Abstract
Maintaining leanness and a physically active lifestyle during adulthood reduces systemic inflammation, an underlying factor in multiple chronic diseases. The anti-inflammatory influence of near-daily physical activity in lowering C-reactive protein, total blood leukocytes, interleukin-6, and other inflammatory cytokines may play a key role in lowering risk of cardiovascular disease, certain types of cancer, type 2 diabetes, sarcopenia, and dementia. Moderate exercise training causes favorable perturbations in immunity and a reduction in incidence of upper respiratory tract infection (URTI). During each bout of moderate exercise, an enhanced recirculation of immunoglobulins, neutrophils, and natural killer cells occurs that persists for up to 3-h post-exercise. This exercise-induced surge in immune cells from the innate immune system is transient but improves overall surveillance against pathogens. As moderate exercise continues on a near-daily basis for 12–15 weeks, the number of symptoms days with URTI is decreased 25%–50% compared to randomized sedentary controls. Epidemiologic and animal studies support this inverse relationship between URTI risk and increased physical activity.
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Bastard JP, Lavoie ME, Messier V, Prud'homme D, Rabasa-Lhoret R. Evaluation of two new surrogate indices including parameters not using insulin to assess insulin sensitivity/resistance in non-diabetic postmenopausal women: a MONET group study. DIABETES & METABOLISM 2012; 38:258-63. [PMID: 22405724 DOI: 10.1016/j.diabet.2012.01.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 01/23/2012] [Accepted: 01/23/2012] [Indexed: 10/28/2022]
Abstract
AIM The study evaluated and compared, with other surrogate indices of insulin sensitivity/resistance (IS/R), the relevance of the TyG index, a product of fasting glucose and triglyceride (TG) levels, and the EGIR index, which includes TG, high-density lipoprotein cholesterol (HDL-c) and waist circumference in its formula to estimate IS/R, in non-diabetic postmenopausal women. METHODS A secondary analysis was performed using the baseline data for 163 non-diabetic postmenopausal women from the Montreal-Ottawa New Emerging Team (MONET) population database. The subjects participated in hyperinsulinaemic-euglycaemic (HIEG) clamp and oral glucose tolerance (OGTT) tests. Correlations and comparisons between surrogate indices were performed in addition to inter-rater agreement tests. The optimal value of surrogate indices for diagnosis of IS/R was established on a receiver operating characteristic (ROC) scatter plot. RESULTS A significant correlation was found between the HIEG clamp and all IS/R surrogate indices tested [r=-0.370 (TyG index) to 0.608 (SIisOGTT index); P<0.001]. On ROC curve analysis, a higher AUROC was found for SIisOGTT (0.791) than for TyG and EGIR (0.706 and 0.675, respectively; P=0.07 and P<0.05, respectively). CONCLUSION The TyG and EGIR IS/R indices were only relatively modestly related to the HIEG clamp. In contrast, both fasting- and OGTT-derived IS/R surrogate indices, which include insulin values in their formulae, appeared to be more accurate in estimating IS/R in our study population. Thus, the TyG and EGIR IS/R indices need to be tested and validated more extensively in different populations before being put to large-scale clinical use.
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Affiliation(s)
- J-P Bastard
- Service de Biochimie et Hormonologie, Hôpital Tenon, AP-HP, 75020 Paris, France.
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Relationship between the body adiposity index and cardiometabolic risk factors in obese postmenopausal women. Eur J Nutr 2012; 52:145-51. [PMID: 22209967 DOI: 10.1007/s00394-011-0296-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 12/19/2011] [Indexed: 12/28/2022]
Abstract
OBJECTIVE The purpose of the present secondary analysis study was to investigate the ability of the body adiposity index (BAI) to detect changes in % body fat levels before and after a weight loss intervention when compared to % body fat levels measured using dual-energy X-ray absorptiometry (DXA) and to examine the relationship between the BAI with cardiometabolic risk factors. METHODS The study population for this secondary analysis included 132 non-diabetic obese sedentary postmenopausal women (age: 57.2 ± 4.7 years, BMI: 35.0 ± 3.7 kg/m(2)) participating in a weight loss intervention that consisted of a calorie-restricted diet with or without resistance training. We measured: (1) visceral fat using CT-scan, (2) body composition using DXA, (3) hip circumference and height from which the BAI was calculated, and (4) cardiometabolic risk factors such as insulin sensitivity (using the hyperinsulinemic-euglycemic clamp), blood pressure as well as fasting plasma lipids, hsC-reactive protein (CRP), leptin, and glucose. RESULTS Percent body fat levels for both methods significantly decreased after the weight loss intervention. In addition, the percent change in % body fat levels after the weight loss intervention was significantly different between % body fat measured using the DXA and the BAI (-4.5 ± 6.6 vs. -5.8 ± 5.9%; p = 0.03, respectively). However, we observed a good overall agreement between the two methods, as shown by the Bland-Altman analysis, for percent change in % body fat. Furthermore, similar correlations were observed between both measures of % body fat with cardiometabolic risk factors. However, results from the multiple linear regression analysis showed that % body fat using the BAI appeared to predict cardiometabolic risk factors differently than % body fat using the DXA in our cohort. CONCLUSIONS Estimating % body fat using the BAI seems to accurately trace variations of % body fat after weight loss. However, this index showed differences in predicting cardiometabolic risk factors when compared to % body fat measured using DXA.
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Arinell K, Christensen K, Blanc S, Larsson A, Fröbert O. Effect of prolonged standardized bed rest on cystatin C and other markers of cardiovascular risk. BMC PHYSIOLOGY 2011; 11:17. [PMID: 22152087 PMCID: PMC3298483 DOI: 10.1186/1472-6793-11-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 12/09/2011] [Indexed: 11/29/2022]
Abstract
Background Sedentary lifestyle is associated with coronary artery disease but even shorter periods of physical inactivity may increase cardiovascular risk. Cystatin C is independently associated with cardiovascular disease and our objective was to investigate the relation between this novel biomarker and standardized bed rest. Research of immobilization physiology in humans is challenging because good biological models are in short supply. From the Women International Space simulation for Exploration study (WISE) we studied markers of atherosclerosis and kidney function, including cystatin C, in a standardized bed rest study on healthy volunteers. Fifteen healthy female volunteers participated in a 20-day ambulatory control period followed by 60 days of bed rest in head-down tilt position (-6°) 24 h a day, finalized by 20 days of recovery. The subjects were randomized into two groups during bed rest: a control group (n = 8) that remained physically inactive and an exercise group (n = 7) that participated in both supine resistance and aerobic exercise training. Results Compared to baseline values there was a statistically significant increase in cystatin C in both groups after bed rest (P < 0.001). Glomerular filtration rate (GFR), calculated by both cystatin C and Cockcroft-Gault equation, decreased after bed rest while there were no differences in creatinine or creatine kinase levels. CRP did not change during bed rest in the exercise group, but there was an increase of CRP in the control group during recovery compared to both the baseline and the bed rest periods. The apo-B/apo-Ai ratio increased during bed rest and decreased again in the recovery period. Subjects experienced a small but statistically significant reduction in weight during bed rest and compared to baseline weights remained lower at day 8 of recovery. Conclusion During and following prolonged standardized bed rest the concentrations of several clinically relevant cardiovascular risk markers change.
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Affiliation(s)
- Karin Arinell
- Department of Cardiology, Örebro University Hospital, Örebro, Sweden.
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Bagge J, Gaida JE, Danielson P, Alfredson H, Forsgren S. Physical activity level in Achilles tendinosis is associated with blood levels of pain-related factors: a pilot study. Scand J Med Sci Sports 2011; 21:e430-8. [DOI: 10.1111/j.1600-0838.2011.01358.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
Moderate exercise training causes favorable perturbations in immunity and a reduction in incidence of upper-respiratory illness (URI). During each bout of moderate exercise, an enhanced recirculation of immunoglobulins, neutrophils, and natural killer cells occurs that persists for up to 3 hours postexercise. This exercise-induced surge in immune cells from the innate immune system is transient but improves overall surveillance against pathogens. As moderate exercise continues on a near-daily basis for 12 to 15 weeks, the number of symptom days with URI is decreased 25% to 50% compared with randomized sedentary controls. Epidemiological and animal studies support this inverse relationship between URI risk and increased physical activity. Recent evidence indicates that maintaining leanness and a physically active lifestyle during adulthood reduces systemic inflammation, an underlying factor in multiple chronic diseases. The anti-inflammatory influence of near-daily physical activity in lowering C-reactive protein, total blood leukocytes, interleukin-6, and other inflammatory cytokines may play a key role in lowering risk of cardiovascular disease, certain types of cancer, type 2 diabetes, sarcopenia, and dementia.
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Affiliation(s)
- David C. Nieman
- Department of Health and Exercise Science, Appalachian State University, Boone, North Carolina,
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Faraj M, Lavoie MÈ, Messier L, Bastard JP, Prud’homme D. Reduction in serum apoB is associated with reduced inflammation and insulin resistance in post-menopausal women: A MONET study. Atherosclerosis 2010; 211:682-8. [DOI: 10.1016/j.atherosclerosis.2010.04.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 04/10/2010] [Accepted: 04/12/2010] [Indexed: 11/29/2022]
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