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Lee K, Kim HJ, Kim JY, Shim JJ, Lee JH. A Mixture of Lactobacillus HY7601 and KY1032 Regulates Energy Metabolism in Adipose Tissue and Improves Cholesterol Disposal in High-Fat-Diet-Fed Mice. Nutrients 2024; 16:2570. [PMID: 39125449 PMCID: PMC11314552 DOI: 10.3390/nu16152570] [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: 07/05/2024] [Revised: 07/30/2024] [Accepted: 08/03/2024] [Indexed: 08/12/2024] Open
Abstract
We aimed to characterize the anti-obesity and anti-atherosclerosis effects of Lactobacillus curvatus HY7601 and Lactobacillus plantarum KY1032 using high-fat diet (HFD)-fed obese C57BL/6 mice. We divided the mice into control (CON), HFD, HFD with 108 CFU/kg/day probiotics (HFD + KL, HY7301:KY1032 = 1:1), and HFD with 109 CFU/kg/day probiotics (HFD + KH, HY7301:KY1032 = 1:1) groups and fed/treated them during 7 weeks. The body mass, brown adipose tissue (BAT), inguinal white adipose tissue (iWAT), and epididymal white adipose tissue (eWAT) masses and the total cholesterol and triglyceride concentrations were remarkably lower in probiotic-treated groups than in the HFD group in a dose-dependent manner. In addition, the expression of uncoupling protein 1 in the BAT, iWAT, and eWAT was significantly higher in probiotic-treated HFD mice than in the HFD mice, as demonstrated by immunofluorescence staining and Western blotting. We also measured the expression of cholesterol transport genes in the liver and jejunum and found that the expression of those encoding liver-X-receptor α, ATP-binding cassette transporters G5 and G8, and cholesterol 7α-hydroxylase were significantly higher in the HFD + KH mice than in the HFD mice. Thus, a Lactobacillus HY7601 and KY1032 mixture with 109 CFU/kg/day concentration can assist with body weight regulation through the management of lipid metabolism and thermogenesis.
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Affiliation(s)
| | | | - Joo-Yun Kim
- R&BD Center, Hy Co., Ltd., 22 Giheungdanji-ro 24 Beon-gil, Giheung-gu, Yongin-si 17086, Republic of Korea; (K.L.); (H.-J.K.); (J.-J.S.); (J.-H.L.)
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Lonardo MS, Guida B, Cacciapuoti N, Chiurazzi M, Pacella D, Cataldi M. Evidence That Skeletal Muscles Modulate HDL-Cholesterol in Metabolic Healthy Young Adults. Nutrients 2024; 16:1110. [PMID: 38674801 PMCID: PMC11054046 DOI: 10.3390/nu16081110] [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: 03/11/2024] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of this study was to investigate whether skeletal muscle (SM) mass correlates with plasma lipids in metabolic healthy young adults. The study was designed as a retrospective observational monocentric study. Data on plasma lipids and SM mass of subjects attending our institution from 1999 to 2014 were analyzed. Inclusion criteria were being 18-45 years old and in apparently good health. SM mass was evaluated by bioelectrical impedance analysis (BIA) using the equation proposed by Janssen and normalized to height as skeletal muscle index (SMI: SM mass/height2). The association between SMI and plasma lipids levels was examined using a crude and adjusted linear regression model including age, sex, BMI and waist circumference as additional covariates. The study population consisted of 450 subjects (273 females) without metabolic syndrome (12.2% with normal body weight, 33.1% overweight, and 54.7% with obesity). SMI, total-cholesterol, LDL-cholesterol, and Triglycerides were higher, whereas HDL-cholesterol was lower in overweight and obese patients as compared with normal weight subjects. SMI was inversely associated with HDL-cholesterol in female patients with obesity but not in male patients with obesity, in normal- or over-weight subjects (p < 0.05). These results suggest that changes in SM mass occurring in obesity could have a role in worsening lipid profile with special reference to HDL-cholesterol.
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Affiliation(s)
- Maria Serena Lonardo
- Physiology Nutrition Unit, Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy; (M.S.L.); (B.G.); (N.C.); (M.C.)
| | - Bruna Guida
- Physiology Nutrition Unit, Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy; (M.S.L.); (B.G.); (N.C.); (M.C.)
| | - Nunzia Cacciapuoti
- Physiology Nutrition Unit, Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy; (M.S.L.); (B.G.); (N.C.); (M.C.)
| | - Martina Chiurazzi
- Physiology Nutrition Unit, Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy; (M.S.L.); (B.G.); (N.C.); (M.C.)
| | - Daniela Pacella
- Department of Public Health, Federico II University of Naples, 80131 Naples, Italy;
| | - Mauro Cataldi
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, Federico II University of Naples, 80131 Naples, Italy
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3
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Li S, Jiao H, Yang J, Li Y, Zhang J, Liu X, Xue Y. Association between lean body mass and hypertension: A cross-sectional study of 50 159 NHANES participants. J Clin Hypertens (Greenwich) 2023; 25:957-964. [PMID: 37614028 PMCID: PMC10560971 DOI: 10.1111/jch.14710] [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: 05/18/2023] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/25/2023]
Abstract
Increasing attention has been paid to the association between lean body mass (LBM) and hypertension in recent years, but the previous findings have often been contradictory. Therefore, the authors investigated the association between LBM and hypertension through a cross-sectional study in the United States. To investigate the relationship between LBM and hypertension, the authors conducted weighted multivariable logistic regression models. The authors used the restricted cubic spline regression model to determine if there was a nonlinear correlation. In order to locate the inflection point, the authors built a two-part linear regression model using a recursive method. In the full adjustment model, LBM was positively associated with hypertension, with ORs (95% CI) of 1.19 (1.02, 1.38). In the further linear trend test, the ORs (95% CI) for Q2, Q3, and Q4 were 0.76 (0.60, 0.95), 0.62 (0.47, 0.80), and 0.66 (0.48, 0.91), respectively, compared to Q1, which suggested that the association between LBM and hypertension might be non-linear. The authors performed the restricted cubic spline curve to confirm this non-linear relationship and found the inflection point of 43.21 kg with an opposite relationship in which LBM and hypertension exhibited a negative correction of 0.66 (0.50, 0.86) before the inflection point and a positive correlation of 1.20 (1.03, 1.39) after the inflection point. Our study highlighted a non-linear association between LBM and hypertension in the general US population.
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Affiliation(s)
- Siyi Li
- The First Clinical Medical SchoolShandong University of Traditional Chinese MedicineShandongChina
| | - Huachen Jiao
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinanChina
| | - Jie Yang
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinanChina
| | - Yan Li
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinanChina
| | - Juan Zhang
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinanChina
| | - Xiujuan Liu
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinanChina
| | - Yitao Xue
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinanChina
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Chardon M, Barbieri FA, Penedo T, Santos PCR, Vuillerme N. A Systematic Review of the Influence of Overweight and Obesity across the Lifespan on Obstacle Crossing during Walking. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5931. [PMID: 37297535 PMCID: PMC10252433 DOI: 10.3390/ijerph20115931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/11/2023] [Accepted: 05/16/2023] [Indexed: 06/12/2023]
Abstract
This study aimed to systematically review and summarize the available data regarding the influence of overweight and obesity across the lifespan on obstacle crossing during walking. Four databases were systematically searched with no limitation on publication date following the Cochrane Handbook for Systematic Reviews and PRISMA guidelines. Only full-text English-language articles published in a peer-reviewed journal were eligible. They had to compare obstacle crossing during walking by overweight or obese individuals with individuals of normal body weight. Five studies were considered eligible. All the studies assessed kinematics; only one assessed kinetics, but none investigated muscle activity or obstacle contact. Compared to normal individuals crossing obstacles, overweight or obese individuals exhibited lower velocity, shorter step length, lower cadence, and less time spent in single-limb support. They also exhibited increased step width, more time spent in double support, and greater trailing leg ground force reaction and centre of mass acceleration. Overall, the small number of included studies did not allow us to draw any conclusions. However, being overweight or obese seems to have a potentially negative influence on the kinematics of gait parameters due to a tendency to trip, fall, and suffer severe fall-related injuries when negotiating obstacles on foot in real-life environments.
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Affiliation(s)
- Matthias Chardon
- Autonomie, Gérontologie, E-santé, Imagerie et Société (AGEIS), Université Grenoble Alpes, 38400 Grenoble, France
- Human Movement Research Laboratory (MOVI-LAB), Department of Physical Education, School of Sciences, São Paulo State University (Unesp), Bauru 15782, Brazil
| | - Fabio A. Barbieri
- Human Movement Research Laboratory (MOVI-LAB), Department of Physical Education, School of Sciences, São Paulo State University (Unesp), Bauru 15782, Brazil
| | - Tiago Penedo
- Autonomie, Gérontologie, E-santé, Imagerie et Société (AGEIS), Université Grenoble Alpes, 38400 Grenoble, France
- Human Movement Research Laboratory (MOVI-LAB), Department of Physical Education, School of Sciences, São Paulo State University (Unesp), Bauru 15782, Brazil
| | - Paulo C. R. Santos
- Autonomie, Gérontologie, E-santé, Imagerie et Société (AGEIS), Université Grenoble Alpes, 38400 Grenoble, France
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot 7632706, Israel
| | - Nicolas Vuillerme
- Autonomie, Gérontologie, E-santé, Imagerie et Société (AGEIS), Université Grenoble Alpes, 38400 Grenoble, France
- Institut Universitaire de France, 75005 Paris, France
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Pi S, Liu A, Zhu B, Zhu Y, Yuan J, Zhang Z, Gao C, Fu J, Liu Y, Liang X, Xia B, Chen Y. Body composition and risk of liver cancer: a population-based prospective cohort study on gender difference. Front Nutr 2023; 10:1102722. [PMID: 37275645 PMCID: PMC10234331 DOI: 10.3389/fnut.2023.1102722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 04/17/2023] [Indexed: 06/07/2023] Open
Abstract
Background Obesity is a common and highly convincing risk factor for many cancers, including liver cancer. Sex disparities in the body composition and regulatory mechanisms involved in energy homeostasis may contribute to the difference in the incidence of cancer. However, evidence on the gender-specific association between body composition and liver cancer incidence is limited. We performed this study to investigate the linear and non-linear associations of body composition with liver cancer risk by gender. Materials and methods This prospective analysis included 4,75,659 participants free of cancer, based on the UK Biobank. We used Cox proportional hazard models to calculate the hazard ratios (HRs) and 95% confidence intervals (CIs) after adjusting for potential confounders. Restricted cubic spline was performed to investigate the potential non-linear associations. Results During a median follow-up, 275 cases (174 male patients and 101 female patients) of liver cancer were identified. Male patients in the highest body fat percentage group are more likely to develop liver cancer (HR = 1.89, 95% CI: 1.17-3.03) compared with those in the lowest group. The one-unit increase of whole-body fat mass, arm fat mass, and trunk fat mass was associated with 1.03-, 1.14-, and 1.05-fold increased risk of liver cancer in male subjects, respectively. U-shaped associations of body composition with liver cancer risk were observed in the female subjects. Both high and low levels of whole-body fat-free mass, particularly in the arm and trunk, were associated with an increased risk of liver cancer. Conclusion This study found a gender-specific association between body composition and liver cancer risk and provided evidence for individualized weight management for the prevention of liver cancer.
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Affiliation(s)
- Sainan Pi
- Department of Infectious Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Anran Liu
- Department of Clinical Nutrition, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Beibei Zhu
- Endoscopy Center, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Yunxiao Zhu
- Health Management Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Jinqiu Yuan
- Clinical Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
- Big Data Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
- Center for Digestive Disease, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Zheming Zhang
- Clinical Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
- Big Data Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Chang Gao
- Department of Infectious Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Jinxian Fu
- Department of Infectious Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Yao Liu
- Department of Infectious Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Xujing Liang
- Department of Infectious Diseases, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Bin Xia
- Clinical Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
- Big Data Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
- Center for Digestive Disease, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Youpeng Chen
- Department of Infectious Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
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Kutac P, Bunc V, Sigmund M, Buzga M, Krajcigr M. Changes in the body composition of boys aged 11-18 years due to COVID-19 measures in the Czech Republic. BMC Public Health 2022; 22:2254. [PMID: 36463114 PMCID: PMC9719114 DOI: 10.1186/s12889-022-14605-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 11/11/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND The lockdown measures related to coronavirus disease 2019 (COVID) impacted the health of adolescents by reducing physical activity (PA). The physical changes in response to decreases in PA can be measured with full body composition analysis. The aim of this study was to evaluate the effects of long-term PA restrictions on body fat (BF), fat-free mass (FFM) and skeletal muscle mass (SMM) in adolescents. METHODS A total of 1669 boys (before PA restriction (G1): 998; after PA restrictions ended (G2): 671; between the ages of 11 and 18 were included. The measured parameters were body mass (BM), visceral fat area (VFA), BF, FFM and SMM. The whole-body composition was evaluated using bioelectrical impedance analysis (BIA). RESULTS Compared to G1, G2 exhibited an increase in BF between 1.2 and 5.1%. This difference was significant in boys aged 13 to 18 years (p < 0.05). VFA increased between 5.3 and 20.5 cm2; this increase was significant in boys aged 13 to 18 years (p < 0.05). SMM decreased between 2.6 and 3.8%, and this decrease was significant in all age groups (p < 0.05). Changes in body composition were not accompanied by any significant changes in BM. CONCLUSIONS COVID-19 restrictions reduced PA, resulting in a significant decrease in SMM. This decrease may impact boys' ability to engage in sufficiently varied PA, which may lead to a further decline in PA and subsequent medical consequences in adulthood.
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Affiliation(s)
- P. Kutac
- grid.412684.d0000 0001 2155 4545Department of Human Movement Studies, University of Ostrava, 701 03 Ostrava, Czech Republic
| | - V. Bunc
- grid.4491.80000 0004 1937 116XFaculty of Physical Education and Sport, Charles University, Praha 6, 162 52 Praha, Czech Republic
| | - M. Sigmund
- grid.10979.360000 0001 1245 3953Application Centre BALUO, Faculty of Physical Culture, Palacky University, 779 00 Olomouc, Czech Republic
| | - M. Buzga
- grid.412684.d0000 0001 2155 4545Department of Human Movement Studies, University of Ostrava, 701 03 Ostrava, Czech Republic
| | - M. Krajcigr
- grid.412684.d0000 0001 2155 4545Department of Human Movement Studies, University of Ostrava, 701 03 Ostrava, Czech Republic
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Hazelwood E, Sanderson E, Tan VY, Ruth KS, Frayling TM, Dimou N, Gunter MJ, Dossus L, Newton C, Ryan N, Pournaras DJ, O'Mara TA, Davey Smith G, Martin RM, Yarmolinsky J. Identifying molecular mediators of the relationship between body mass index and endometrial cancer risk: a Mendelian randomization analysis. BMC Med 2022; 20:125. [PMID: 35436960 PMCID: PMC9017004 DOI: 10.1186/s12916-022-02322-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/03/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Endometrial cancer is the most common gynaecological cancer in high-income countries. Elevated body mass index (BMI) is an established modifiable risk factor for this condition and is estimated to confer a larger effect on endometrial cancer risk than any other cancer site. However, the molecular mechanisms underpinning this association remain unclear. We used Mendelian randomization (MR) to evaluate the causal role of 14 molecular risk factors (hormonal, metabolic and inflammatory markers) in endometrial cancer risk. We then evaluated and quantified the potential mediating role of these molecular traits in the relationship between BMI and endometrial cancer using multivariable MR. METHODS Genetic instruments to proxy 14 molecular risk factors and BMI were constructed by identifying single-nucleotide polymorphisms (SNPs) reliably associated (P < 5.0 × 10-8) with each respective risk factor in previous genome-wide association studies (GWAS). Summary statistics for the association of these SNPs with overall and subtype-specific endometrial cancer risk (12,906 cases and 108,979 controls) were obtained from a GWAS meta-analysis of the Endometrial Cancer Association Consortium (ECAC), Epidemiology of Endometrial Cancer Consortium (E2C2) and UK Biobank. SNPs were combined into multi-allelic models and odds ratios (ORs) and 95% confidence intervals (95% CIs) were generated using inverse-variance weighted random-effects models. The mediating roles of the molecular risk factors in the relationship between BMI and endometrial cancer were then estimated using multivariable MR. RESULTS In MR analyses, there was strong evidence that BMI (OR per standard deviation (SD) increase 1.88, 95% CI 1.69 to 2.09, P = 3.87 × 10-31), total testosterone (OR per inverse-normal transformed nmol/L increase 1.64, 95% CI 1.43 to 1.88, P = 1.71 × 10-12), bioavailable testosterone (OR per natural log transformed nmol/L increase: 1.46, 95% CI 1.29 to 1.65, P = 3.48 × 10-9), fasting insulin (OR per natural log transformed pmol/L increase: 3.93, 95% CI 2.29 to 6.74, P = 7.18 × 10-7) and sex hormone-binding globulin (SHBG, OR per inverse-normal transformed nmol/L increase 0.71, 95% CI 0.59 to 0.85, P = 2.07 × 10-4) had a causal effect on endometrial cancer risk. Additionally, there was suggestive evidence that total serum cholesterol (OR per mg/dL increase 0.90, 95% CI 0.81 to 1.00, P = 4.01 × 10-2) had an effect on endometrial cancer risk. In mediation analysis, we found evidence for a mediating role of fasting insulin (19% total effect mediated, 95% CI 5 to 34%, P = 9.17 × 10-3), bioavailable testosterone (15% mediated, 95% CI 10 to 20%, P = 1.43 × 10-8) and SHBG (7% mediated, 95% CI 1 to 12%, P = 1.81 × 10-2) in the relationship between BMI and endometrial cancer risk. CONCLUSIONS Our comprehensive MR analysis provides insight into potential causal mechanisms linking BMI with endometrial cancer risk and suggests targeting of insulinemic and hormonal traits as a potential strategy for the prevention of endometrial cancer.
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Affiliation(s)
- Emma Hazelwood
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Eleanor Sanderson
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Vanessa Y Tan
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Katherine S Ruth
- University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Timothy M Frayling
- Genetics of Complex Traits, College of Medicine and Health, University of Exeter, Exeter, UK
| | - Niki Dimou
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France
| | - Marc J Gunter
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France
| | - Laure Dossus
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France
| | - Claire Newton
- Department of Gynecology, St Michaels Hospital University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Neil Ryan
- Department of Gynecology, St Michaels Hospital University Hospitals Bristol NHS Foundation Trust, Bristol, UK
- The Academic Women's Health Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Dimitri J Pournaras
- Department of Upper GI and Bariatric/Metabolic Surgery, North Bristol NHS Trust, Southmead Hospital, Bristol, UK
| | - Tracy A O'Mara
- Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - George Davey Smith
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Richard M Martin
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
- National Institute for Health Research Bristol Biomedical Research Centre, University of Bristol, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - James Yarmolinsky
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
- Bristol Medical School, University of Bristol, Bristol, UK.
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Lagacé JC, Marcotte-Chenard A, Paquin J, Tremblay D, Brochu M, Dionne IJ. Increased odds of having the metabolic syndrome with greater fat-free mass: counterintuitive results from the National Health and Nutrition Examination Survey database. J Cachexia Sarcopenia Muscle 2022; 13:377-385. [PMID: 34825787 PMCID: PMC8818661 DOI: 10.1002/jcsm.12856] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 08/20/2021] [Accepted: 10/19/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND It is well established that body composition influences metabolic health, but emerging data are conflicting with the largely purported idea that a large fat-free mass (FFM) has a protective effect on health. A potential explanation for these discrepancies is the way FFM is represented. The first objective is to determine the association between the metabolic syndrome (MetS) and FFM when the latter was represented in three different ways: 1-absolute FFM; 2-relative to squared height (FFMi); and 3-relative to body weight (FFM%). The second objective is to assess the impact of FFM on the relative risk of having the MetS after taking fat mass, physical activity, and sociodemographic variables into account. METHODS A total of 5274 individuals from the National Health and Nutrition Examination Survey database were studied. Age-specific and sex-specific quartiles of the three representations of FFM were defined, and the prevalence of MetS was determined in each of them. Quartiles of FFMi (kg/m2 ) were used to calculate the odds ratios of having the MetS independently of FM, physical activity levels, and sociodemographic variables. RESULTS The prevalence of MetS decreased with increasing quartiles of whole-body FFM% (Q1: 40%; Q4: 10%) but grew with increasing quartiles of absolute FFM (Q1: 13%; Q4: 40%) and FFMi (Q1: 10%; Q4: 44%). Similar results were observed for appendicular and truncal FFM. The odds ratios of having the MetS, independently of fat mass, physical activity, and sociodemographic variables, were significantly greater in the fourth quartile of FFMi when compared with the first quartiles of each specific subgroup [Q4 vs. Q1: younger men: 4.16 (1.99-8.68); younger women: 5.74 (2.46-13.39); older men: 1.98 (1.22-3.22); older women: 2.88 (1.69-4.90); all P ≤ 0.01]. CONCLUSIONS These results support the notion that the representation of FFM significantly influences its association with MetS and that a larger FFM, whether absolute or relative to height, is associated with alterations in cardiometabolic health.
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Affiliation(s)
- Jean-Christophe Lagacé
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Alexis Marcotte-Chenard
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Jasmine Paquin
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Dominic Tremblay
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Martin Brochu
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Isabelle J Dionne
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
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9
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Córdoba-Rodríguez DP, Iglesia I, Gomez-Bruton A, Rodríguez G, Casajús JA, Morales-Devia H, Moreno LA. Fat-free/lean body mass in children with insulin resistance or metabolic syndrome: a systematic review and meta-analysis. BMC Pediatr 2022; 22:58. [PMID: 35065638 PMCID: PMC8783460 DOI: 10.1186/s12887-021-03041-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 11/18/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Lean / Fat Free Body Mass (LBM) is metabolically involved in active processes such as resting energy expenditure, glucose uptake, and myokine secretion. Nonetheless, its association with insulin sensitivity / resistance / glucose tolerance and metabolic syndrome remains unclear in childhood. METHODS The current investigation aimed to examine the differences in fat-free mass /lean body mass according to the presence of insulin sensitivity/insulin resistance/glucose tolerance/metabolic syndrome in children. A systematic search was carried out in Medline/PubMed, Embase, Scopus, Web of Science, and SciELO, covering the period from each database's respective start to 21 June 2021. Two researchers evaluated 7111 studies according to the inclusion criteria: original human studies, written in English or Spanish, evaluating fat-free mass/lean body mass in children and adolescents including both with and without insulin sensitivity/insulin resistance /glucose tolerance and metabolic syndrome and reported the differences between them in terms of fat free mass/lean body mass. The results of the studies were combined with insulin sensitivity, insulin, resistance, glucose tolerance and metabolic syndrome. The standardized mean difference (SMD) in each study was calculated and combined using the random-effects model. Heterogeneity between studies was tested using the index of heterogeneity (I2), leave-one-out sensitivity analyses were performed, and publication bias was assessed using the Egger and Begg tests. RESULTS Finally, 15 studies which compared groups defined according to different glucose homeostasis criteria or metabolic syndrome out of 103 eligible studies were included in this systematic review and 12 studies in the meta-analysis. Meta-analysis showed lower fat-free mass/lean body mass percentage in participants with insulin resistance/glucose tolerance/metabolic syndrome (SMD -0.47; 95% CI, - 0.62 to - 0.32) while in mass units (kg), higher values were found in the same group (SMD, 1.01; 95% CI, 0.43 to 1.60). CONCLUSIONS Our results identified lower values of fat-free mass/lean body mass (%) in children and adolescents with insulin resistance/glucose tolerance/metabolic syndrome and higher values of fat-free mass/lean body mass when these are expressed in kg. The evidence of the impact of lean mass on children's glucose homeostasis or metabolic syndrome is limited, so future studies research should focus on explaining the effect of fat-free mass/lean body mass on different metabolic outcomes. Moreover, it may be interesting to evaluate the quality (muscle density) or functional (muscle strength) outcomes in addition to both absolute (kg) and relative (%) values in future studies. The systematic review was prospectively registered at PROSPERO (registration number CRD42019124734; available at: http://www.crd.york.ac.uk/prospero [accessed: 05 April 2019]).
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Affiliation(s)
| | - Iris Iglesia
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
- Red de Salud Materno Infantil y del Desarrollo (SAMID), Instituto de Salud Carlos III, Madrid, Spain
| | - Alejandro Gomez-Bruton
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Universidad de Zaragoza, Zaragoza, Spain
- Faculty of Health and Sport Sciences (FCSD), Department of Physiatry and Nursing, University of Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Gerardo Rodríguez
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
- Red de Salud Materno Infantil y del Desarrollo (SAMID), Instituto de Salud Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Departamento de Pediatría, Universidad de Zaragoza, Zaragoza, Spain
| | - José Antonio Casajús
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Universidad de Zaragoza, Zaragoza, Spain
- Faculty of Health and Sport Sciences (FCSD), Department of Physiatry and Nursing, University of Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Hernan Morales-Devia
- Biblioteca General Alfonso Borrero Cabal, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Luis A. Moreno
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Universidad de Zaragoza, Zaragoza, Spain
- Red de Salud Materno Infantil y del Desarrollo (SAMID), Instituto de Salud Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
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10
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Lewandowska J, Tomaczak M, Wilk I, Lwow F. Obesity and low levels of physical activity are associated with a decreased health-related quality of life
in postmenopausal women: a Wroclaw pilot study. MEDICAL SCIENCE PULSE 2021. [DOI: 10.5604/01.3001.0015.3944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Menopause is associated with numerous somatic dysfunctions, an increased risk of chronic
diseases, and complications in the mental and social components of health that lower the quality of life
(QoL). Obesity and related comorbidities affect over 60% of postmenopausal women in Poland. A significant
role for systematic physical activity (PA) in the prevention of dysfunctions and chronic diseases, including
obesity and mental disorders, has been observed previously. A low level of PA is observed across the Polish
population, especially in postmenopausal women.
Aim of the study: To examine QoL in postmenopausal women participating in a community health promotion
program as it relates to obesity and levels of PA.
Material and methods: The study sample consisted of 76 postmenopausal women (aged 65.75±5.14 years)
participating in the Active Wrocław 55+ program. Before starting the program, anthropometric measurements
were taken, and QoL and PA were assessed using the 36-Item Short Form Health Survey (SF-36) and
the International Physical Activity Questionnaire-Short Form (IPAQ-SF), respectively.
Results: Most women had a PA level above 600 MET -min/week (78.95%), and were overweight or obese
(86.84%). A waist circumference over 80 cm, indicating an increased risk for metabolic syndrome, was observed
in 85.89% of the participants. BMI and waist circumference negatively correlated with the level of PA
(p=0.001 and p=0.017, respectively). Women exhibiting low levels of PA and higher BMIs showed a significantly
lower QoL compared to those with higher PA and lower BMIs, particularly with regard to the physical
domains of QoL.
Conclusions: Obesity and a low level of PA are associated with a significant decline in the health-related QoL
(especially in the PF and PCS domains) of postmenopausal women an urban setting.
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Affiliation(s)
- Joanna Lewandowska
- Department of Physiotherapy, University School of Physical Education in Wroclaw, Poland
| | - Mateusz Tomaczak
- Department of Physiotherapy, University School of Physical Education in Wroclaw, Poland
| | - Iwona Wilk
- Department of Physiotherapy, University School of Physical Education in Wroclaw, Poland
| | - Felicja Lwow
- Department of Physiotherapy, University School of Physical Education in Wroclaw, Poland
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11
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Ognjanović S, Antić J, Pekmezović T, Popović B, Isailović T, Antić IB, Bogavac T, Kovačević VE, Ilić D, Opalić M, Macut D. The association of glucocorticoid receptor polymorphism with metabolic outcomes in menopausal women with adrenal incidentalomas. Maturitas 2021; 151:15-21. [PMID: 34446274 DOI: 10.1016/j.maturitas.2021.06.011] [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: 03/12/2021] [Revised: 06/21/2021] [Accepted: 06/26/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES To investigate whether BclI polymorphism in the glucocorticoid receptor gene influences hypothalamic-pituitary-adrenal (HPA) axis regulation, body composition and metabolic parameters in women with adrenal incidentalomas (AIs). STUDY DESIGN A cross-sectional study. MAIN OUTCOME MEASURES We analyzed 106 women with AIs. Insulin resistance was assessed using a homeostasis model while HPA activity was assessed using dexamethasone suppression tests (DST), basal ACTH, urinary free cortisol, and midnight serum cortisol level. Body composition was analyzed using dual-energy X-ray absorptiometry. DNA was obtained from peripheral blood leucocytes and BclI polymorphism was detected using PCR, RFLP and DNA sequencing. RESULTS BclI carriers in comparison with those with wild-type BclI had less suppressed cortisol after DST-0.5 mg (126.4 ± 111.4 vs 80.9 ± 75.7 nmol/l, p = 0.026) and had a lower prevalence of impaired glucose tolerance and of type 2 diabetes mellitus (T2DM). BclI carriers had a higher percentage of leg fat mass (FM), lower left-sided limb muscle mass and a decline in total lean body mass. Duration of menopause remained a strong predictor of appendicular lean mass index (ALMI) (β=-0.125, p = 0.034). BclI polymorphism was significantly associated with sum of legs FM percentage (β=0.327, p = 0.048). T2DM was negatively associated with BclI polymorphism, after adjusting for age, truncal FM, ALMI, and sum of legs FM (OR=0.158, 95%CI 0.031-0.806, p = 0.027). CONCLUSIONS BclI polymorphism is associated with tissue-specific glucocorticoid sensitivity, relative glucocorticoid resistance of the HPA axis and peripheral adipose tissue, and glucocorticoid hypersensitivity at the muscle level. By modulating glucocorticoid and insulin sensitivity, BclI polymorphism appears to reduce the risk of T2DM in women with AIs.
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Affiliation(s)
- Sanja Ognjanović
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Jadranka Antić
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Belgrade, Serbia
| | - Tatjana Pekmezović
- Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Bojana Popović
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana Isailović
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Božić Antić
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tamara Bogavac
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Belgrade, Serbia
| | | | - Dušan Ilić
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Belgrade, Serbia
| | - Milica Opalić
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Belgrade, Serbia
| | - Djuro Macut
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
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12
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Maharjan BR, Martinez‐Huenchullan SF, Mclennan SV, Twigg SM, Williams PF. Exercise induces favorable metabolic changes in white adipose tissue preventing high-fat diet obesity. Physiol Rep 2021; 9:e14929. [PMID: 34405572 PMCID: PMC8371352 DOI: 10.14814/phy2.14929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 01/08/2023] Open
Abstract
Diet and/or exercise are cost effective interventions to treat obesity. However, it is unclear if the type of exercise undertaken can prevent the onset of obesity and if it can act through different effects on fat depots. In this study we did not allow obesity to develop so we commenced the high-fat diet (HFD) and exercise programs concurrently and investigated the effect of endurance exercise (END) and high-intensity interval training (HIIT) on changes in cellular adipogenesis, thermogenesis, fibrosis, and inflammatory markers in three different fat depots, on a HFD and a chow diet. This was to assess the effectiveness of exercise to prevent the onset of obesity-induced changes. Mice fed with chow or HFD (45% kcal fat) were trained and performed either END or HIIT for 10 weeks (3 x 40 min sessions/week). In HFD mice, both exercise programs significantly prevented the increase in body weight (END: 17%, HIIT: 20%), total body fat mass (END: 46%, HIIT: 50%), increased lean mass as a proportion of body weight (Lean mass/BW) by 14%, and improved insulin sensitivity by 22%. Further evidence of the preventative effect of exercise was seen significantly decreased markers for adipogenesis, inflammation, and extracellular matrix accumulation in both subcutaneous adipose tissue (SAT) and epididymal adipose tissue (EPI). In chow, no such marked effects were seen with both the exercise programs on all the three fat depots. This study establishes the beneficial effect of both HIIT and END exercise in preventing metabolic deterioration, collagen deposition, and inflammatory responses in fat depots, resulting in an improved whole body insulin resistance in HFD mice.
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Affiliation(s)
- Babu R. Maharjan
- Greg Brown Diabetes & Endocrinology LaboratorySydney Medical SchoolUniversity of SydneySydneyAustralia
- Department of BiochemistryPatan Academy of Health SciencesSchool of MedicineLalitpurNepal
| | - Sergio F. Martinez‐Huenchullan
- Greg Brown Diabetes & Endocrinology LaboratorySydney Medical SchoolUniversity of SydneySydneyAustralia
- Faculty of MedicineSchool of Physical TherapyUniversidad Austral de ChileValdiviaChile
| | - Susan V. Mclennan
- Greg Brown Diabetes & Endocrinology LaboratorySydney Medical SchoolUniversity of SydneySydneyAustralia
- New South Wales Health PathologySydneyAustralia
- Department of EndocrinologyRoyal Prince Alfred HospitalSydneyAustralia
| | - Stephen M. Twigg
- Greg Brown Diabetes & Endocrinology LaboratorySydney Medical SchoolUniversity of SydneySydneyAustralia
- Department of EndocrinologyRoyal Prince Alfred HospitalSydneyAustralia
| | - Paul F. Williams
- Greg Brown Diabetes & Endocrinology LaboratorySydney Medical SchoolUniversity of SydneySydneyAustralia
- New South Wales Health PathologySydneyAustralia
- Department of EndocrinologyRoyal Prince Alfred HospitalSydneyAustralia
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13
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Paquin J, Lagacé JC, Brochu M, Dionne IJ. Exercising for Insulin Sensitivity - Is There a Mechanistic Relationship With Quantitative Changes in Skeletal Muscle Mass? Front Physiol 2021; 12:656909. [PMID: 34054574 PMCID: PMC8149906 DOI: 10.3389/fphys.2021.656909] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/14/2021] [Indexed: 12/29/2022] Open
Abstract
Skeletal muscle (SM) tissue has been repetitively shown to play a major role in whole-body glucose homeostasis and overall metabolic health. Hence, SM hypertrophy through resistance training (RT) has been suggested to be favorable to glucose homeostasis in different populations, from young healthy to type 2 diabetic (T2D) individuals. While RT has been shown to contribute to improved metabolic health, including insulin sensitivity surrogates, in multiple studies, a universal understanding of a mechanistic explanation is currently lacking. Furthermore, exercised-improved glucose homeostasis and quantitative changes of SM mass have been hypothesized to be concurrent but not necessarily causally associated. With a straightforward focus on exercise interventions, this narrative review aims to highlight the current level of evidence of the impact of SM hypertrophy on glucose homeostasis, as well various mechanisms that are likely to explain those effects. These mechanistic insights could provide a strengthened rationale for future research assessing alternative RT strategies to the current classical modalities, such as low-load, high repetition RT or high-volume circuit-style RT, in metabolically impaired populations.
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Affiliation(s)
- Jasmine Paquin
- Research Centre on Aging, Affiliated With CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Jean-Christophe Lagacé
- Research Centre on Aging, Affiliated With CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Martin Brochu
- Research Centre on Aging, Affiliated With CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Isabelle J Dionne
- Research Centre on Aging, Affiliated With CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
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14
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Differences in body composition between metabolically healthy and unhealthy midlife women with respect to obesity status. ANTHROPOLOGICAL REVIEW 2021. [DOI: 10.2478/anre-2021-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Body composition (BC) characteristics across metabolic health-by-body mass index categories were examined. Metabolic health (MH) was defined by five biomarkers: waist circumference, blood pressure, levels of triglycerides, high density lipoprotein cholesterol, and fasting glucose. Potential differences in BC characteristics between metabolically healthy obese (MH-O) and metabolically unhealthy obese (MUH-O) women, and between MH normal weight (MH-NW) and MUH normal weight (MUH-NW) women were explored in 276 Slovak midlife women (39-65 years). Body composition parameters were measured with bioimpedance analyzer (BIA 101, Akern, S. r. l.). A simple comparison of the BC data between the subgroups showed significant differences in resistance (Rz, ohm) (p=0.035), muscle mass (MM, kg) (p=0.044), and total body water (TBW, kg) (p=0.047) between MH-O and MUH-O women. However, we did not observe any significant differences in BC characteristics between MH-NW and MUHNW. Specific logistic regression models were used to determine differences in BC characteristics between various obesity phenotypes, with controlling for age, menopausal status, smoking status and sport activity. Our results indicated that increasing age and decreasing Rz were statistically significantly associated with an increased likelihood of exhibiting MUH-O (p=0.031 for age; p=0.032 for Rz). Moreover, other logistic models which included age, menopausal status, biochemical variables and life style factors such as covariates, showed that increasing alanine aminotransferase (ALT) and uric acid (UA) were statistically significantly associated with an increased likelihood of exhibiting MUH-O (p=0.023 for ALT, p=0.010 for UA). In conclusion, MUH-O and MH-O cardiometabolic profiles are characterized by differences in the value of resistance and plasma levels of ALT and UA.
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15
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Liu A, He Q, Wu W, Du J, Kuo Z, Xia B, Tang Y, Yun P, Cheung EC, Tang Y, He Y, Zhang C, Yuan J, Sun G. Body composition and risk of gastric cancer: A population-based prospective cohort study. Cancer Med 2021; 10:2164-2174. [PMID: 33624430 PMCID: PMC7957174 DOI: 10.1002/cam4.3808] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 11/16/2020] [Accepted: 01/20/2021] [Indexed: 12/24/2022] Open
Abstract
The recognition of adiposity as a risk factor for gastric cancer is mainly based on traditional anthropometric indices, such as body mass index, which are unable to discriminate between lean and fat mass. We undertook this study to examine body composition and subsequent risk of gastric cancer. This is a prospective analysis of participants free of cancer from the UK Biobank. We measured baseline body composition with electrical bioimpedance analysis and confirmed cancer diagnosis through linkage to cancer and death registries. We evaluated hazard ratios (HRs) and confidence interval (CIs) with COX models adjusting for potential confounders. We documented 326 cases of cancer from 474,929 participants over a median follow-up of 6.6 years. Both male (HR 1.70, 95% CI 1.01 to 2.89) and female participants (HR 2.47, 95% CI 1.15 to 5.32) in the highest quartile of whole body fat-free mass were associated with increased risk of gastric cancer as compared with those in the lowest quartile.Whole body fat mass was associated with a decreased risk of gastric cancer (HR per 5-unit increase 0.86, 95% CI 0.74 to 0.99) in females, but not in males. We concluded that fat-free mass and fat mass may have different effects on gastric cancer risk. This study provided evidence for individualized weight management for the prevention of gastric cancer.
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Affiliation(s)
- An‐Ran Liu
- Department of Clinical NutritionThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Qiang‐Sheng He
- Clinical Research CenterBig Data CenterThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Wen‐Hui Wu
- Center for Digestive DiseaseThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Jian‐Liang Du
- Division of Medical Record ManagementThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Zi‐Chong Kuo
- Center for Digestive DiseaseThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Bin Xia
- Clinical Research CenterBig Data CenterThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Yan Tang
- Clinical Research CenterBig Data CenterThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Peng Yun
- Department of EndocrinologyThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Eddie C. Cheung
- Center for Digestive DiseaseThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
- Division of GastroenterologySchool of MedicineUniversity of California DavisDavisCAUSA
| | - You‐Zhen Tang
- Department of Clinical NutritionThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Yu‐Long He
- Clinical Research CenterBig Data CenterThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Chang‐Hua Zhang
- Clinical Research CenterBig Data CenterThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Jin‐Qiu Yuan
- Clinical Research CenterBig Data CenterThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
| | - Gang Sun
- Department of Clinical NutritionThe Seventh Affiliated HospitalSun Yat‐sen UniversityGuangdong ProvinceChina
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16
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Zaniqueli D, de Oliveira Alvim R, Griep RH, Benseñor IM, Barreto SM, Lotufo PA, Mill JG. Insulin resistance may be misdiagnosed by HOMA-IR in adults with greater fat-free mass: the ELSA-Brasil Study. Acta Diabetol 2021; 58:73-80. [PMID: 32860145 DOI: 10.1007/s00592-020-01594-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/07/2020] [Indexed: 11/24/2022]
Abstract
AIMS Conflicting results have been reported on the association of fat-free mass (FFM) and insulin resistance (IR). This study sought to test the association of FFM and IR by indexing FFM to avoid collinearity with fat mass. METHODS This cross-sectional study comprised 11,284 volunteers, aged 38-79 years. Body composition was assessed by multi-frequency bioelectrical impedance. FFM indexed to body surface area (FFMbsa) was calculated. IR and impaired glucose tolerance (IGT) were estimated with homeostatic model assessment of insulin resistance index (HOMA-IR) and 2-h oral glucose tolerance test (2h-OGTT), respectively. RESULTS Percent body fat decreased from the 1st to the 5th quintile of FFMbsa in both women (Eta2 = 0.166) and men (Eta2 = 0.133). In women, fasting insulin (Eta2 = 0.002), glucose (Eta2 = 0.006), and HOMA-IR (Eta2 = 0.007) increased slightly, but 2-h plasma glucose (2-h PG) was similar across the quintiles of FFMbsa. In men, fasting insulin and HOMA-IR were similar across the quintiles of FFMbsa, whereas fasting glucose increased slightly (Eta2 = 0.002) and 2-h PG decreased (Eta2 = 0.005) toward the highest quintile of FFMbsa. The higher the odds ratio for IR, the greater the FFMbsa in both sexes. Differently, FFMbsa did not affect the odds of IGT in women, while in men the odds ratio for IGT was lower in the 5th quintile compared with the 1st quintile of FFMbsa. CONCLUSIONS Higher odds of IR associated with greater FFMbsa contrasted with lower odds of IGT associated with greater FFMbsa. IR may be misdiagnosed by HOMA-IR in adults with greater fat-free mass.
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Affiliation(s)
- Divanei Zaniqueli
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Rafael de Oliveira Alvim
- Department of Physiological Sciences, Federal University of Amazonas, Av. General Rodrigo Octavio Jordão Ramos 1200, Coroado I, Manaus, AM, 69067-005, Brazil.
| | - Rosane Harter Griep
- Laboratory of Health and Environment Education, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Isabela Martins Benseñor
- Center for Clinical and Epidemiological Research, Medical School, University of São Paulo, São Paulo, SP, Brazil
| | - Sandhi Maria Barreto
- School of Medicine and Clinical Hospital, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Paulo Andrade Lotufo
- Department of Internal Medicine, Medical School, University of São Paulo, São Paulo, SP, Brazil
| | - José Geraldo Mill
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil
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17
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Maréchal R, Ghachem A, Prud'homme D, Rabasa-Lhoret R, Dionne IJ, Brochu M. Physical activity energy expenditure and fat-free mass: relationship with metabolic syndrome in overweight or obese postmenopausal women. Appl Physiol Nutr Metab 2020; 46:389-396. [PMID: 33080144 DOI: 10.1139/apnm-2020-0607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Menopause transition is associated with detrimental changes in physical activity, body composition, and metabolic profile. Although physical activity energy expenditure (PAEE) is inversely associated with metabolic syndrome (MetS) in individuals at higher risk of cardiovascular disease, the association is unknown in low-risk individuals. The aim of the study was to investigate the association between PAEE and MetS (prevalence and severity) in inactive overweight or obese postmenopausal women with a low Framingham Risk Score (<10%). Cross-sectional data of 126 participants were divided into quartiles based on PAEE (Quartile (Q)1 = lowest PAEE) while fat-free mass (FFM) and fat mass were measured by dual-energy X-ray absorptiometry. MetS prevalence was significantly different between Q1 and Q4 (37.9% vs 13.3%, p = 0.03). After controlling for potential confounders, MetS severity was negatively associated with PAEE (B = -0.057, p < 0.01) and positively with FFM (B = 0.038, p < 0.001). Moderation analyses indicated that a greater FFM exacerbated the association between PAEE and MetS severity in Q1 and Q2 (PAEE × FFM; B = -0.004; p = 0.1). Our results suggest that displaying a low FRS and lower PAEE increase MetS prevalence and severity. In addition, greater FFM interacts with lower PAEE to worsens MetS severity, while higher PAEE lessened this effect. Novelty: Inactive individuals displaying higher daily PAEE also have a lower MetS prevalence. Greater FFM is associated with a worse MetS severity where a higher PAEE mitigated this deleterious effect in our cohort.
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Affiliation(s)
- René Maréchal
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC J1H 4C4, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | - Ahmed Ghachem
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC J1H 4C4, Canada
| | - Denis Prud'homme
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,Institut du Savoir Montfort, Ottawa, ON K1K 0T2, Canada
| | - Rémi Rabasa-Lhoret
- Department of Nutrition, Faculty of Medicine, University of Montreal, Montréal, QC H3T 1A8, Canada.,Institut de Recherche Cliniques de Montréal (IRCM), Montréal, QC H2W 1R7, Canada
| | - Isabelle J Dionne
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC J1H 4C4, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | - Martin Brochu
- Research Centre on Aging, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC J1H 4C4, Canada.,Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
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18
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Abstract
PURPOSE OF REVIEW It is well known that obesity represents the main modifiable risk factor for insulin resistance in children and adolescents; obesity-induced insulin resistance in children is the most important risk factor for developing cardiovascular diseases and type 2 diabetes in adulthood. The mechanisms through which obesity causes insulin resistance are complex and not completely known to date. RECENT FINDINGS In children, global adiposity is the main factor determining insulin resistance. Excessive fatty acids play a determinant role in the pathogenesis of insulin resistance in obese children, inducing an increased production of acetyl-CoA in the liver and enhancing inflammation in adipose tissue. The aetiology of insulin resistance in polycystic ovary syndrome is multifactorial and still debated. SUMMARY The aim of this review is to present an updated frame and new insights of the numerous pathways involved in the development of insulin resistance in obese patients, focusing on the peculiarities of children and adolescents. Improving the knowledge of mechanisms through which obesity leads to insulin resistance is fundamental in order to recommend particular follow-up and possible treatment to specific categories of obese children and adolescents.
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Jepsen S, Suvan J, Deschner J. The association of periodontal diseases with metabolic syndrome and obesity. Periodontol 2000 2020; 83:125-153. [PMID: 32385882 DOI: 10.1111/prd.12326] [Citation(s) in RCA: 151] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Periodontitis is a multifactorial chronic inflammatory disease associated with dysbiotic plaque biofilms and characterized by progressive destruction of the tooth-supporting apparatus. Globally, it is estimated that 740 million people are affected by its severe form. Periodontitis has been suggested to be linked to obesity and metabolic syndrome. Obesity, defined as excessive fat accumulation, is a complex multifactorial chronic inflammatory disease, with a high and increasing prevalence. Metabolic syndrome is defined as a cluster of obesity, dyslipidemia, hypertension, and dysglycemia. Obesity, metabolic syndrome and periodontitis are among the most common non-communicable diseases and a large body of evidence from epidemiologic studies supports the association between these conditions. Extensive research has established plausible mechanisms to explain how these conditions can negatively impact each other, pointing to a bidirectional adverse relationship. At present there is only limited evidence available from a few intervention studies. Nevertheless, the global burden of periodontitis combined with the obesity epidemic has important clinical and public health implications for the dental team. In accordance with the common risk factor approach for tackling non-communicable diseases, it has been proposed that oral healthcare professionals have an important role in the promotion of periodontal health and general well-being through facilitation of healthy lifestyle behaviours.
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Affiliation(s)
- Søren Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany
| | - Jean Suvan
- Department of Periodontology, UCL Eastman Dental Institute, London, UK
| | - James Deschner
- Department of Periodontology and Operative Dentistry, University of Mainz, Mainz, Germany
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20
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Effects of gradual weight loss v. rapid weight loss on body composition and RMR: a systematic review and meta-analysis. Br J Nutr 2020; 124:1121-1132. [DOI: 10.1017/s000711452000224x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Colpitts BH, Bouchard DR, Keshavarz M, Boudreau J, Sénéchal M. Does lean body mass equal health despite body mass index? Scand J Med Sci Sports 2019; 30:672-679. [PMID: 31770463 DOI: 10.1111/sms.13605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/14/2019] [Accepted: 11/20/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To determine the association between having simultaneously high body mass index (BMI) and high relative lean body mass (LBM) and cardio-metabolic risk factors, metabolic syndrome (MetS), and diabetes in adults. MATERIALS AND METHODS A cross-sectional analysis was performed on 4982 adults aged 19-85 years that participated in the National Health and Nutrition Examination Survey (cycles 1999-2000-2005-2006). The primary exposure variable was categorization into four groups: (a) Low-BMI/Low-LBM, (b) Low-BMI/High-LBM, (c) High-BMI/Low-LBM, and (d) High-BMI/High-LBM. LBM was assessed using dual-energy X-ray absorptiometry. The primary outcome measures were cardio-metabolic risk factors, MetS based on the ATP III definition; participants were required to have at least three of the following five criteria: high waist circumference, low HDL cholesterol, elevated triglyceride levels, high resting blood pressure, and self-reported diabetes. RESULTS Compared to the High-BMI/High-LBM, most cardio-metabolic risk factors were significantly different among groups (P < .05) while no such differences were observed for the High-BMI/Low-LBM (P > .05). Exception of waist circumference (OR [95%]: 21.8 [8.84-53.82]), there was no increased odds of having cardio-metabolic risk factors in the High-BMI/Low-LBM compared with the High-BMI/High-LBM (P > .05). The odds of having MetS and diabetes for the High-BMI/Low-LBM compared with the High-BMI/High-LBM were OR (95% CI): 1.68 (0.84-3.36) and 0.59 (0.26-1.34), respectively. CONCLUSIONS Our results suggest that having a high-BMI as well as high relative LBM levels is not associated with cardio-metabolic risk factors, MetS, and diabetes. Therefore, maintaining a BMI below 30 kg/m2 appears to be clinically relevant, regardless of LBM levels.
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Affiliation(s)
- Benjamin H Colpitts
- Cardiometabolic Exercise & Lifestyle Laboratory, University of New Brunswick, Fredericton, New Brunswick, Canada.,Faculty of Kinesiology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Danielle R Bouchard
- Cardiometabolic Exercise & Lifestyle Laboratory, University of New Brunswick, Fredericton, New Brunswick, Canada.,Faculty of Kinesiology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Mohammad Keshavarz
- Cardiometabolic Exercise & Lifestyle Laboratory, University of New Brunswick, Fredericton, New Brunswick, Canada.,Faculty of Kinesiology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Jonathan Boudreau
- New Brunswick Institute for Research, Data and Training, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Martin Sénéchal
- Cardiometabolic Exercise & Lifestyle Laboratory, University of New Brunswick, Fredericton, New Brunswick, Canada.,Faculty of Kinesiology, University of New Brunswick, Fredericton, New Brunswick, Canada
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22
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Ghachem A, Brochu M, Dionne IJ. Differential clusters of modifiable risk factors for impaired fasting glucose versus impaired glucose tolerance in adults 50 years of age and older. Ther Adv Chronic Dis 2019; 10:2040622319854239. [PMID: 31210919 PMCID: PMC6552341 DOI: 10.1177/2040622319854239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 05/08/2019] [Indexed: 01/04/2023] Open
Abstract
Background The aim of this study was to identify modifiable risk factors associated with isolated impaired fasting glucose (IFG), isolate impaired glucose tolerance (IGT), or combined IFG-IGT in men and women aged 50 years and older. Methods Cross-sectional analyses were performed in 703 men and women aged between 50 and 80 years old from NHANES (2007-2008). Outcome variables: IFG and IGT (ADA 2003), estimated body composition, cardiometabolic profile, and socio-demographic, dietary, and lifestyle factors. Results First, 235 had normal glucose tolerance (men = 38.3%, women = 61.7%), 243 had IFG (men = 61.7%, women = 38.3%), 67 had IGT (men = 40.3%, women = 59.7%) and 158 had both conditions (men = 57.0%, women = 43.0%). The only common determinant of both IFG and IGT was triglyceride levels. High total fat mass index (FMI) and high total fat-free mass index (FFMI) were independently associated with IFG; while high C-reactive protein (CRP) levels were independently associated with IGT. Finally, combined IFG-IGT was associated with inadequate fiber intake, high FMI, FFMI, and CRP levels. Conclusions Middle-age and older individuals presented different modifiable risk factors depending on whether they had IFG or IGT. IFG was associated with deteriorated body composition and lipids, whereas IGT was associated with deteriorated lipids and inflammatory factors. IFG-IGT, on the other hand, was associated with a larger number of risk factors, including worsen body composition, cardiometabolic and dietary factors. To prevent the transition to type 2 diabetes, specific clinical interventions targeting these risk factors should be considered.
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Affiliation(s)
- Ahmed Ghachem
- Faculty of Physical Activity Sciences, University of Sherbrooke, Canada; and Research Centre on Aging, CIUSS de l'Estrie-CHUS, Sherbrooke, Canada
| | - Martin Brochu
- Faculty of Physical Activity Sciences, University of Sherbrooke, Canada; and Research Centre on Aging, CIUSS de l'Estrie-CHUS, Sherbrooke, Canada
| | - Isabelle J Dionne
- Faculty of Physical Activity Sciences, University of Sherbrooke, Canada; and Research Centre on Aging, Sherbrooke, Canada
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23
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Diaz EC, Børsheim E, Shankar K, Cleves MA, Andres A. Prepregnancy Fat Free Mass and Associations to Glucose Metabolism Before and During Pregnancy. J Clin Endocrinol Metab 2019; 104:1394-1403. [PMID: 30496579 PMCID: PMC7296201 DOI: 10.1210/jc.2018-01381] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 11/21/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Our aim was to quantify the individual contribution of prepregnancy (PP) fat-free mass (FFM), expressed as [PP-FFM index (PP-FFMI) = FFM (kg)/height (m2)], on markers of glucose homeostasis before and during pregnancy. METHODS Body composition was assessed in 43 women before pregnancy using air-displacement plethysmography. Blood was drawn at PP and gestational weeks ∼8 and 30. Relationships between body composition (independent) variables and glucose homeostasis (dependent) variables were assessed using adjusted correlations and simple and multiple linear regression analyses. RESULTS PP-FFMI was the strongest predictor of plasma insulin concentration [squared partial correlation (Pr2) = 17, P = 0.007] and homeostasis model assessment of insulin resistance (HOMA2-IR) (Pr2 = 16, P = 0.010). At gestation week 30, PP-FFMI and gestational weight gain (GWG) were the strongest predictors of insulin concentration (PP-FFMI: Pr2 = 20, P = 0.010; GWG: Pr2 = 12, P = 0.052) and HOMA2-IR (PP-FFMI: Pr2 = 19, P = 0.012; GWG: Pr2 = 13, P = 0.045). After accounting for PP fat mass index (PP-FMI), PP-FFMI and GWG were independently associated with first-phase insulin response (PP-FFMI: Pr2 = 20, P = 0.009; GWG: Pr2 = 15, P = 0.025) and second-phase insulin response (PP-FFMI: Pr2 = 19, P = 0.011; GWG: Pr2 = 17, P = 0.016). PP-FMI was the strongest predictor of an oral glucose tolerance test‒derived estimated metabolic clearance rate of glucose (PP-FMI: Pr2 = 14, P = 0.037) and estimated insulin sensitivity index (PP-FMI: Pr2 = 13, P = 0.047). CONCLUSIONS PP-FFMI was a predictor of markers of glucose homeostasis before and during pregnancy. Studies assessing the effect of skeletal muscle quality on metabolic regulation during pregnancy are warranted.
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Affiliation(s)
- Eva Carolina Diaz
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children’s Research Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Correspondence and Reprint Requests: Eva Carolina Diaz, MD, Arkansas Children’s Nutrition Center, 15 Children’s Way, Slot 317, Little Rock, Arkansas 72202. E-mail:
| | - Elisabet Børsheim
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children’s Research Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Kartik Shankar
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Mario Alberto Cleves
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Aline Andres
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
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24
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Abstract
The purpose of this paper was to identify and summarize current evidence describing periodontal complications associated with obesity. Electronic searches supplemented with manual searches were carried out to identify relevant systematic reviews. Identification, screening, eligibility, and inclusion of studies were performed independently by two reviewers. A MeaSurement Tool to Assess systematic Reviews (AMSTAR) was used to assess the quality and risk of bias of the included reviews. From 430 titles and abstracts screened, 14 systematic reviews were considered as eligible for inclusion in this meta-review. Eight reviews reported on cross-sectional studies investigating the association of obesity and periodontal diseases, 4 included longitudinal studies, 5 addressed response to periodontal therapy, 5 reported on studies investigating biomarkers, and only 2 were related to pediatric population samples. Systematic review summaries in the various study design domains (cross-sectional, longitudinal and experimental) report that obese individuals are more likely to have periodontal diseases, with more severe periodontal conditions, than nonobese individuals, with cross-sectional evidence congruent with longitudinal studies showing that obesity or weight gain increases the risk of periodontitis onset and progression. Published research on the effect of obesity on responses to periodontal therapy, or systemic or local biomarkers of inflammation, is variable and therefore inconclusive based on the evidence currently available, which suggests that overweight/obesity contributes to periodontal complications independently of other risk factors, such as age, gender, smoking, or ethnicity. This evidence supports the need for risk assessments for individual patients to facilitate personalized approaches in order to prevent and treat periodontal diseases.
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Affiliation(s)
- Jean E Suvan
- Unit of Periodontology, UCL Eastman Dental Institute, London, UK
| | - Nicholas Finer
- National Centre for Cardiovascular Prevention and Outcomes, UCL Institute of Cardiovascular Science, London, UK
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25
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Fat-free mass and glucose homeostasis: is greater fat-free mass an independent predictor of insulin resistance? Aging Clin Exp Res 2019; 31:447-454. [PMID: 29992495 DOI: 10.1007/s40520-018-0993-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/29/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND A greater fat-free mass (FFM) is purported to be associated with protective effects on insulin resistance (IR). However, recent studies suggested negative associations between FFM and IR. OBJECTIVES (1) To explore the direction of the association between FFM and IR in a large heterogeneous sample after controlling for confounding factors. (2) To determine cut off values of FFM associated with an increased risk of IR. METHODS Outcome variables were measured in 7044 individuals (48.6% women, 20-79 years; NHANES, 1999-2006): body composition [fat mass (FM), FFM and appendicular FFM (aFFM); DXA], FFM index [FFMI: FFM/height (kg/m2)], appendicular FFMI [aFFM/height (kg/m2)] and insulin resistance (HOMA-IR). Multivariate regression analyses were performed to determine the independent predictors of HOMA-IR in younger (20-49 years) and older (50-79 years) men and women. ROC analyses were used to determine FFM cut-offs to identify a higher risk of insulin resistance (HOMA-IR > 75th percentile). RESULTS aFFMI was an independent predictor of IR in younger (men: β = 0.21; women: β = 0.31; all p ≤ 0.001) and older (men: β = 0.11; women: β = 0.37; all p ≤ 0.001) individuals. Thresholds for aFFMI at which the risk of IR was significantly increased were 8.96 and 8.39 kg/m2 in younger and older men, and 7.22 and 6.64 kg/m2 in younger and older women, respectively. CONCLUSION Independently of age, a greater aFFMI was an independent predictor of IR. These results suggest revisiting how we envision the link between FFM and IR and explore potential mechanisms.
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26
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Ghachem A, Bagna M, Payette H, Gaudreau P, Brochu M, Dionne IJ. Profiling obesity phenotypes and trajectories in older adults of the Quebec NuAge cohort on nutrition and successful aging: A cluster analysis. Clin Obes 2019; 9:e12295. [PMID: 30695177 DOI: 10.1111/cob.12295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/17/2018] [Accepted: 12/23/2018] [Indexed: 12/26/2022]
Abstract
Obesity in older adults results from several interacting factors. Consequently, interventions have shown mitigated effects. We determined (a) the different subgroups of older adults with obesity based on clusters of associated comorbidities and (b) the trajectory of these clusters to assess their stability over 3 years and factors contributing to transitions. Obese men (n = 193; body mass index [BMI] = 33.15 ± 2.69 kg/m2 ) and women (n = 220; BMI = 33.71 ± 3.71 kg/m2 ) aged between 68 and 82 years were studied. Outcome variables were body composition, strength, physical capacity (PC), nutrition, psychological and physical health and social participation. Cluster analyses, stratified by sex, were used to identify obesity profiles at baseline and follow-up. Three profiles were identified, based on general health (GH), psychological health (PH) and PC: Cluster 1: healthy obese (GH+, PH+, PC+); Cluster 2: obese with low PC (GH+/-, PH+/-, PC-); Cluster 3: unhealthy obese (GH-, PH-, PC-). After 3 years, 61.2% and 70.2% of men and women remained in their initial cluster, compared to 20.4% and 13.7% who transitioned towards a worse health cluster and 18.3% and 16.0% who transitioned towards a more favourable cluster, partly explained by changes in physical health for men and physical health and PH for women. The results of this study show that targeting physical function in men and physical health and PH functions in women could prevent further health decline in older adults with obesity. Further studies are needed to investigate the role of these clusters in the prediction of cardiometabolic complications and mortality.
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Affiliation(s)
- Ahmed Ghachem
- Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, Canada
- Research Centre on Aging, Social Services and Health Centre-University Institute of Geriatrics of Sherbrooke, Sherbrooke, Canada
| | - Maimouna Bagna
- Research Centre on Aging, Social Services and Health Centre-University Institute of Geriatrics of Sherbrooke, Sherbrooke, Canada
- Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Canada
| | - Hélène Payette
- Research Centre on Aging, Social Services and Health Centre-University Institute of Geriatrics of Sherbrooke, Sherbrooke, Canada
- Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Canada
| | - Pierrette Gaudreau
- Centre Hospitalier de l'Université de Montréal Research Center, Montreal, Canada
- Department of Medicine, University of Montreal, Montreal, Canada
| | - Martin Brochu
- Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, Canada
- Research Centre on Aging, Social Services and Health Centre-University Institute of Geriatrics of Sherbrooke, Sherbrooke, Canada
| | - Isabelle J Dionne
- Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, Canada
- Research Centre on Aging, Social Services and Health Centre-University Institute of Geriatrics of Sherbrooke, Sherbrooke, Canada
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27
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Yamashita M, Kamiya K, Matsunaga A, Kitamura T, Hamazaki N, Matsuzawa R, Nozaki K, Tanaka S, Nakamura T, Maekawa E, Masuda T, Ako J, Miyaji K. Prognostic value of sarcopenic obesity estimated by computed tomography in patients with cardiovascular disease and undergoing surgery. J Cardiol 2019; 74:273-278. [PMID: 30928108 DOI: 10.1016/j.jjcc.2019.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 01/19/2019] [Accepted: 02/13/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND Sarcopenic obesity is a health condition involving a combination of excess adipose tissue and loss of muscle mass. Although sarcopenic obesity is known to contribute to the morbidity and mortality of chronic diseases, limited data are available in patients with cardiovascular disease. The present study was performed to examine whether sarcopenic obesity determined by preoperative computed tomography (CT) is a useful predictor of postoperative mortality in patients undergoing cardiovascular surgery. METHODS We reviewed the findings in 664 consecutive cardiovascular surgery patients (mean age, 65.8±12.7 years; male, 66.6%) who underwent preoperative CT including the level of the third lumbar vertebra for clinical purposes. Psoas muscle attenuation (MA) and visceral adipose tissue (VAT) were measured as metrics of sarcopenia and obesity, respectively. Sarcopenia was defined as low MA (below median), while obesity was defined as high VAT (≥103cm2 for males and ≥69cm2 for females). The endpoint was all-cause mortality and secondary outcomes were muscle function. RESULTS After adjusting for age and sex, sarcopenic obesity showed significant associations with lower grip strength and quadriceps strength, slower gait speed, and shorter 6-min walking distance compared to the normal group (p<0.05). On multivariate Cox regression analysis, sarcopenic obesity was associated with increased risk of mortality after adjusting for EuroSCORE (hazard ratio, 3.04; 95% confidence interval, 1.25-7.40). CONCLUSIONS Sarcopenic obesity is associated with poor muscle function and all-cause mortality in patients undergoing cardiovascular surgery.
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Affiliation(s)
- Masashi Yamashita
- Department of Rehabilitation Sciences, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - Kentaro Kamiya
- Department of Rehabilitation, School of Allied Health Sciences, Kitasato University, Sagamihara, Japan.
| | - Atsuhiko Matsunaga
- Department of Rehabilitation Sciences, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan; Department of Rehabilitation, School of Allied Health Sciences, Kitasato University, Sagamihara, Japan
| | - Tadashi Kitamura
- Department of Cardiovascular Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Nobuaki Hamazaki
- Department of Rehabilitation, Kitasato University Hospital, Sagamihara, Japan; Department of Cardiovascular Medicine, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - Ryota Matsuzawa
- Department of Rehabilitation, Kitasato University Hospital, Sagamihara, Japan
| | - Kohei Nozaki
- Department of Rehabilitation, Kitasato University Hospital, Sagamihara, Japan
| | - Shinya Tanaka
- Department of Cardiovascular Medicine, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - Takeshi Nakamura
- Department of Rehabilitation Sciences, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - Emi Maekawa
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Takashi Masuda
- Department of Rehabilitation, School of Allied Health Sciences, Kitasato University, Sagamihara, Japan; Department of Cardiovascular Medicine, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - Junya Ako
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kagami Miyaji
- Department of Cardiovascular Surgery, Kitasato University School of Medicine, Sagamihara, Japan
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Shin D, Eom YS, Chon S, Kim BJ, Yu KS, Lee DH. Factors influencing insulin sensitivity during hyperinsulinemic-euglycemic clamp in healthy Korean male subjects. Diabetes Metab Syndr Obes 2019; 12:469-476. [PMID: 31114276 PMCID: PMC6497818 DOI: 10.2147/dmso.s195350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 02/12/2019] [Indexed: 01/07/2023] Open
Abstract
Background and objective: The effects of age and related factors on insulin sensitivity have not been definitively evaluated in East Asian populations. We proposed a reference range for the glucose disposal rate (M-value) on hyperinsulinemic-euglycemic study and its association with other parameters. Methods: Healthy, non-diabetic young (n=10) and elderly (n=13) male subjects with normal body mass index were eligible for this study. Subjects who passed the oral glucose tolerance test (OGTT) underwent hyperinsulinemic-euglycemic clamp with high-dose (80 mU/m2·min) insulin infusion. Results: M-values were normalized to body weight (MBW) and fat-free mass (MFFM). Neither M-value was significantly different between age groups (P=0.458 and P=0.900, respectively). An inverse correlation was observed between MFFM and baseline insulin (r=-0.418; P=0.047), baseline C-peptide (r=-0.426; P=0.043) and OGTT 2-hour glucose (r=-0.452; P=0.030). Regarding correlations with other insulin sensitivity indices, M-values were positively associated with the Matsuda index but not with homeostasis model assessment of insulin resistance. Conclusion: Our results suggest that age is not a critical determinant of insulin sensitivity, while fasting insulin and C-peptide levels, OGTT 2-hour glucose level, and Matsuda index are predictable markers of insulin sensitivity in healthy Koreans.
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Affiliation(s)
- Dongseong Shin
- Department of Pharmacology, Gachon University College of Medicine, Incheon, Korea
- Clinical Trials Center, Gachon University Gil Medical Center, Incheon, Korea
| | - Young Sil Eom
- Department of Internal Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Suk Chon
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Byung-Joon Kim
- Department of Internal Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Kyung-Sang Yu
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
- Kyung-Sang YuDepartment of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro Jongno-gu, Seoul03080, KoreaTel +82 2 2072 1920Fax +82 2 742 9252 Email
| | - Dae Ho Lee
- Department of Internal Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
- Correspondence: Dae Ho LeeDepartment of Internal Medicine, Gachon University College of Medicine, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon21565, Korea; Department of Internal Medicine, Gachon University Gil Medical Center, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon21565, KoreaTel +82 32 458 2733Fax +82 32 899 6033Email
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29
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Rasaei N, Mirzababaei A, Arghavani H, Tajik S, Keshavarz SA, Yekaninejad MS, Imani H, Mirzaei K. A comparison of the sensitivity and specificity of anthropometric measurements to predict unhealthy metabolic phenotype in overweight and obese women. Diabetes Metab Syndr 2018; 12:1147-1153. [PMID: 30017504 DOI: 10.1016/j.dsx.2018.06.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 06/29/2018] [Indexed: 01/22/2023]
Abstract
AIM Metabolically Healthy Obese (MHO) is called to obese people that their insulin sensitivity, lipid profiles and inflammatory profiles are favorable, and there are no signs of hypertension and cardio-metabolic diseases. The metabolically unhealthy obese (MUHO) is the opposite. A Body Shape Index (ABSI) is a marker to identifying abdominal obesity that is derived from weight, height and waist circumference (WC). Several studies have reported ABSI is associated with diabetes, metabolic syndrome, hypertension and higher mortality rate. MATERIALS AND METHODS A total of 305 overweight and obese women were included in the current comparative cross-sectional study. Body composition was measured using body composition analyzer. Blood samples were obtained. The usual food intake of evaluated through the use of a semi-quantitative food frequency questionnaire. RESULTS The results of this study revealed that there is a significant relationship between ABSI and MHO and MUHO (p = 0.04) and area under the ROC curve was 0.60. Also there is a significant relationship between BMI, fat mass index (FMI), free fat mass index (FFMI), neck circumference (NC), WC, fat mass (FM) and metabolic healthy status (MHS). The largest area under the ROC curve belonged to NC, WC, FM and BMI (0.66). CONCLUSION The findings of this study suggest that there is a significant relationship between ABSI, BMI, FMI, FFMI, NC, WC, FM and MHS. The largest area under the ROC curve was related to the NC, WC, FM and BMI not ABSI, that means NC, WC, FM and BMI have maximum sensitivity and specificity.
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Affiliation(s)
- Niloufar Rasaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Atieh Mirzababaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hana Arghavani
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Somayeh Tajik
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Seyed Ali Keshavarz
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mir Saeed Yekaninejad
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Imani
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
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Lin C, Fesi BD, Marquis M, Bosak NP, Lysenko A, Koshnevisan MA, Duke FF, Theodorides ML, Nelson TM, McDaniel AH, Avigdor M, Arayata CJ, Shaw L, Bachmanov AA, Reed DR. Burly1 is a mouse QTL for lean body mass that maps to a 0.8-Mb region of chromosome 2. Mamm Genome 2018; 29:325-343. [PMID: 29737391 DOI: 10.1007/s00335-018-9746-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 04/26/2018] [Indexed: 11/25/2022]
Abstract
To fine map a mouse QTL for lean body mass (Burly1), we used information from intercross, backcross, consomic, and congenic mice derived from the C57BL/6ByJ (host) and 129P3/J (donor) strains. The results from these mapping populations were concordant and showed that Burly1 is located between 151.9 and 152.7 Mb (rs33197365 to rs3700604) on mouse chromosome 2. The congenic region harboring Burly1 contains 26 protein-coding genes, 11 noncoding RNA elements (e.g., lncRNA), and 4 pseudogenes, with 1949 predicted functional variants. Of the protein-coding genes, 7 have missense variants, including genes that may contribute to lean body weight, such as Angpt41, Slc52c3, and Rem1. Lean body mass was increased by the B6-derived variant relative to the 129-derived allele. Burly1 influenced lean body weight at all ages but not food intake or locomotor activity. However, congenic mice with the B6 allele produced more heat per kilogram of lean body weight than did controls, pointing to a genotype effect on lean mass metabolism. These results show the value of integrating information from several mapping populations to refine the map location of body composition QTLs and to identify a short list of candidate genes.
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Affiliation(s)
- Cailu Lin
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Brad D Fesi
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Michael Marquis
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Natalia P Bosak
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Anna Lysenko
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | | | - Fujiko F Duke
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | | | - Theodore M Nelson
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Amanda H McDaniel
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Mauricio Avigdor
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Charles J Arayata
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | - Lauren Shaw
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA
| | | | - Danielle R Reed
- Monell Chemical Senses Center, 3500 Market St, Philadelphia, PA, 19104, USA.
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A one-year resistance training program following weight loss has no significant impact on body composition and energy expenditure in postmenopausal women living with overweight and obesity. Physiol Behav 2018; 189:99-106. [DOI: 10.1016/j.physbeh.2018.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/16/2018] [Accepted: 03/12/2018] [Indexed: 12/12/2022]
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Effects of a 6-month caloric restriction induced-weight loss program in obese postmenopausal women with and without the metabolic syndrome: a MONET study. Menopause 2018; 24:908-915. [PMID: 28399005 DOI: 10.1097/gme.0000000000000862] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To compare the effects of a caloric restriction (CR) on body composition, lipid profile, and glucose homeostasis in obese postmenopausal women with and without metabolic syndrome (MetS). METHODS Secondary analyses were performed on 73 inactive obese postmenopausal women (age 57.7 ± 4.8 years; body mass index 32.4 ± 4.6 kg/m) who participated in the 6-month CR arm of a study of the Montreal-Ottawa New Emerging Team. The harmonized MetS definition was used to categorize participants with MetS (n = 20, 27.39%) and without MetS (n = 53, 72.61%). Variables of interest were: body composition (dual-energy X-ray absorptiometry), body fat distribution (computed tomography scan), glucose homeostasis at fasting state and during a euglycemic/hyperinsulinemic clamp, fasting lipids, and resting blood pressure. RESULTS By design, the MetS group had a worse cardiometabolic profile, whereas both groups were comparable for age. Fifty-five participants out of 73 displayed no change in MetS status after the intervention. Twelve participants out of 20 (or 60.0%) in the MetS group had no more MetS after weight loss (P = NS), whereas 6 participants out of 53 (or 11.3%) in the other group developed the MetS after the intervention (P = NS). Overall, indices of body composition and body fat distribution improved significantly and similarly in both groups (P between 0.03 and 0.0001). Furthermore, with the exception of triglyceride levels and triglycerides/high-density lipoprotein cholesterol ratio, which decrease significantly more in the MetS group (P ≤ 0.05), no difference was observed between groups for the other variables of the cardiometabolic profile. CONCLUSIONS Despite no overall significant effects on MetS, heteregeneous results were obtained in response to weight loss in the present study, with some improving the MetS, whereas other displaying deteriorations. Further studies are needed to identify factors and phenotypes associated with positive and negative cardiometabolic responses to CR intervention.
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Foot Rollover Temporal Parameters During Walking Straight Ahead and Stepping Over Obstacles: Obese and Non-Obese Postmenopausal Women. J Aging Phys Act 2018; 26:227-234. [PMID: 28714798 DOI: 10.1123/japa.2017-0045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study was to compare the temporal foot rollover data between walking straight ahead and stepping over obstacles for obese and non-obese postmenopausal women. Plantar pressure data were collected from 67 women. The initial, final, and duration of contact of 10 foot areas were measured. Both limbs of both groups showed a longer foot contact duration on the obstacle task. Significant temporal differences were found for both groups between straight ahead and crossing obstacles on the initial, final, and duration of contact for several foot areas. The propulsion phase of the trailing limb during the obstacle task was anticipated. Regarding the leading limb, the first foot contact was not made with the heel areas; however, a backward foot rollover movement from the metatarsal to the heel areas occurred, possibly to provide support to better control the trailing limb swing phase.
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Hill S, Deepa SS, Sataranatarajan K, Premkumar P, Pulliam D, Liu Y, Soto VY, Fischer KE, Van Remmen H. Sco2 deficient mice develop increased adiposity and insulin resistance. Mol Cell Endocrinol 2017; 455:103-114. [PMID: 28428045 PMCID: PMC5592144 DOI: 10.1016/j.mce.2017.03.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 03/18/2017] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
Abstract
Cytochrome c oxidase (COX) is an essential transmembrane protein complex (Complex IV) in the mitochondrial respiratory electron chain. Mutations in genes responsible for the assembly of COX are associated with Leigh syndrome, cardiomyopathy, spinal muscular atrophy and other fatal metabolic disorders in humans. Previous studies have shown that mice lacking the COX assembly protein Surf1 (Surf1-/- mice) paradoxically show a number of beneficial metabolic phenotypes including increased insulin sensitivity, upregulation of mitochondrial biogenesis, induction of stress response pathways and increased lifespan. To determine whether these effects are specific to the Surf1 mutation or a more general effect of reduced COX activity, we asked whether a different mutation causing reduced COX activity would have similar molecular and physiologic changes. Sco2 knock-in/knock-out (KI/KO) mice in which one allele of the Sco2 gene that encodes a copper chaperone required for COX activity is deleted and the second allele is mutated, have previously been shown to be viable despite a 30-60% reduction in COX activity. In contrast to the Surf1-/- mice, we show that Sco2 KI/KO mice have increased fat mass, associated with reduced β-oxidation and increased adipogenesis markers, reduced insulin receptor beta (IR-β levels in adipose tissue, reduced muscle glucose transporter 4 (Glut4) levels and a impaired response to the insulin tolerance test consistent with insulin resistance. COX activity and protein are reduced approximately 50% in adipose tissue from the Sco2 KI/KO mice. Consistent with the increase in adipose tissue mass, the Sco2 KI/KO mice also show increased hepatosteatosis, elevated serum and liver triglyceride and increased serum cholesterol levels compared to wild-type controls. In contrast to the Surf1-/- mice, which show increased mitochondrial number, upregulation of the mitochondrial unfolded protein response (UPRMT) pathway and no significant change in mitochondrial respiration in several tissues, Sco2 KI/KO mice do not upregulate the UPRMT, and tissue oxygen consumption and levels of several proteins involved in mitochondrial function are reduced in adipose tissue compared to wild type mice. Thus, the metabolic effects of the Sco2 and Surf1-/- mutations are opposite, despite comparable changes in COX activity, illuminating the complex impact of mitochondrial dysfunction on physiology and pointing to an important role for complex IV in regulating metabolism.
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Affiliation(s)
- Shauna Hill
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 N.E. 13th Street, Oklahoma City, OK 73104, United States; Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States
| | - Sathyaseelan S Deepa
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 N.E. 13th Street, Oklahoma City, OK 73104, United States
| | - Kavithalakshmi Sataranatarajan
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 N.E. 13th Street, Oklahoma City, OK 73104, United States
| | - Pavithra Premkumar
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 N.E. 13th Street, Oklahoma City, OK 73104, United States
| | - Daniel Pulliam
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 N.E. 13th Street, Oklahoma City, OK 73104, United States; Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States
| | - Yuhong Liu
- Department of Biology, University of Alabama at Birmingham, 1720 2nd Avenue South, CH 464, Birmingham, AL 35294, United States
| | - Vanessa Y Soto
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States
| | - Kathleen E Fischer
- Department of Biology, University of Alabama at Birmingham, 1720 2nd Avenue South, CH 464, Birmingham, AL 35294, United States
| | - Holly Van Remmen
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 N.E. 13th Street, Oklahoma City, OK 73104, United States; Oklahoma City VA Medical Center, Oklahoma City, OK, United States.
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Hopkins JL, Hopkins PN, Brinton EA, Adams TD, Davidson LE, Nanjee MN, Hunt SC. Expression of Metabolic Syndrome in Women with Severe Obesity. Metab Syndr Relat Disord 2017; 15:283-290. [PMID: 28657427 DOI: 10.1089/met.2016.0116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The prevalence of metabolic syndrome (MetS) generally rises with increasing adiposity, but tends to plateau at the highest levels of body mass index (BMI) with some individuals, even with severe obesity, expressing few or no components of MetS. We examined factors associated with the expression of MetS in severely obese women participating in a large observational study. METHODS Anthropometrics, including Heath equation-adjusted bioimpedance-determined fat-free mass (FFM) and fat mass (FM), lipids and related laboratory measurements, resting energy expenditure (REE), and respiratory quotient (RQ), were studied in 949 women with severe obesity. RESULTS Even though the mean BMI was 45.7 kg/m2 and all participants met MetS criteria for increased waist circumference, 30% of subjects did not have MetS. Unadjusted FM (P = 0.0011), FFM (P < 0.0001), and REE (P < 0.0001) were greater in the women with MetS. Surprisingly, in multivariate logistic regression FFM was positively associated with MetS (P = 0.0002), while FM was not (P = 0.89). Moreover, FFM, not FM, was significantly associated with all five components of MetS except for triglyceride levels. REE and RQ were higher in those with MetS, and REE was strongly associated with multiple components of MetS. CONCLUSIONS In women with severe obesity, higher FFM and REE were paradoxically associated with increased rather than decreased risk of MetS, while FFM-adjusted FM was unrelated to MetS.
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Affiliation(s)
- James L Hopkins
- 1 Cardiovascular Genetics, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine , Salt Lake City, Utah
| | - Paul N Hopkins
- 1 Cardiovascular Genetics, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine , Salt Lake City, Utah
| | - Eliot A Brinton
- 2 The Utah Lipid Center and Utah Foundation for Biomedical Research , Salt Lake City, Utah
| | - Ted D Adams
- 1 Cardiovascular Genetics, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine , Salt Lake City, Utah.,3 Intermountain Live Well Center , Intermountain Healthcare, Salt Lake City, Utah
| | - Lance E Davidson
- 1 Cardiovascular Genetics, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine , Salt Lake City, Utah.,4 Department of Exercise Sciences, Brigham Young University , Provo, Utah
| | - M Nazeem Nanjee
- 1 Cardiovascular Genetics, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine , Salt Lake City, Utah
| | - Steven C Hunt
- 1 Cardiovascular Genetics, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine , Salt Lake City, Utah.,5 Department of Genetic Medicine, Weill Cornell Medicine in Qatar, Doha, Qatar
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Martinez JA, Wertheim BC, Thomson CA, Bea JW, Wallace R, Allison M, Snetselaa L, Chen Z, Nassir R, Thompson PA. Physical Activity Modifies the Association between Dietary Protein and Lean Mass of Postmenopausal Women. J Acad Nutr Diet 2017; 117:192-203.e1. [PMID: 27914915 PMCID: PMC5276713 DOI: 10.1016/j.jand.2016.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 10/04/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Maintenance of lean muscle mass and related strength is associated with lower risk for numerous chronic diseases of aging in women. OBJECTIVE Our aim was to evaluate whether the association between dietary protein and lean mass differs by physical activity level, amino acid composition, and body mass index categories. DESIGN We performed a cross-sectional analysis of a prospective cohort. PARTICIPANTS/SETTING Participants were postmenopausal women from the Women's Health Initiative with body composition measurements by dual-energy x-ray absorptiometry (n=8,298). MAIN OUTCOME MEASURES Our study measured percent lean mass, percent fat mass, and lean body mass index. STATISTICAL ANALYSES PERFORMED Linear regression models adjusted for scanner serial number, age, calibrated energy intake, race/ethnicity, neighborhood socioeconomic status, and recreational physical activity were used to determine the relationship between protein intake and body composition measures. Likelihood ratio tests and stratified analysis were used to investigate physical activity and body mass index as potential effect modifiers. RESULTS Biomarker-calibrated protein intake was positively associated with percent lean mass; women in the highest protein quintile had 6.3 percentage points higher lean mass than the lowest quintile (P<0.001). This difference rose to 8.5 percentage points for physically active women in the highest protein quintile (Pinteraction=0.023). Percent fat mass and lean body mass index were both inversely related to protein intake (both P<0.001). Physical activity further reduced percent fat mass (Pinteraction=0.022) and lean body mass index (Pinteraction=0.011). Leucine intake was associated with lean mass, as were branched chain amino acids combined (both P<0.001), but not independent of total protein. All associations were observed for normal-weight, overweight, and obese women. CONCLUSIONS Protein consumption up to 2.02 g/kg body weight daily is positively associated with lean mass in postmenopausal women. Importantly, those that also engage in physical activity have the highest lean mass across body mass index categories.
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Affiliation(s)
- Jessica A. Martinez
- Department of Nutritional Sciences, University of Arizona Cancer Center, University of Arizona, Tucson, AZ, phone: (520) 626-6326,
| | - Betsy C. Wertheim
- University of Arizona Cancer Center, Tucson, AZ, phone: (520) 777-1666,
| | - Cynthia A. Thomson
- Mel & Enid Zuckerman College of Public Health, University of Arizona Cancer Center, University of Arizona, Tucson, AZ, phone: (520) 940-1759
| | - Jennifer W. Bea
- Department of Nutritional Sciences, University of Arizona Cancer Center Tucson, AZ, phone: (520) 626-0912,
| | - Robert Wallace
- Department of Epidemiology, MD, MSc, University of Iowa, Iowa City, IA, phone: (319) 384-1551,
| | - Matthew Allison
- Department of Family Medicine and Public Health, University of California, San Diego, CA, phone: (858) 822-7671,
| | - Linda Snetselaa
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, phone: (319) 384-1553,
| | - Zhao Chen
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, phone: (520) 626-901,
| | - Rami Nassir
- Department of Biochemistry and Molecular Medicine, University of California, Davis, CA phone: (530) 754-6016,
| | - Patricia A. Thompson
- Department of Pathology, Stony Brook University, Stony Brook, NY, phone: (631) 444-6818,
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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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Morrison SA, Goss AM, Azziz R, Raju DA, Gower BA. Peri-muscular adipose tissue may play a unique role in determining insulin sensitivity/resistance in women with polycystic ovary syndrome. Hum Reprod 2016; 32:185-192. [PMID: 27827322 DOI: 10.1093/humrep/dew279] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/22/2016] [Accepted: 10/11/2016] [Indexed: 12/24/2022] Open
Abstract
STUDY QUESTION Do the determinants of insulin sensitivity/resistance differ in women with and without polycystic ovary syndrome (PCOS)? SUMMARY ANSWER Peri-muscular thigh adipose tissue is uniquely associated with insulin sensitivity/resistance in women with PCOS, whereas adiponectin and thigh subcutaneous adipose are the main correlates of insulin sensitivity/resistance in women without PCOS. WHAT IS KNOWN ALREADY In subject populations without PCOS, insulin sensitivity/resistance is determined by body fat distribution and circulating concentrations of hormones and pro-inflammatory mediators. Specifically, visceral (intra-abdominal) adipose tissue mass is adversely associated with insulin sensitivity, whereas thigh subcutaneous adipose appears protective against metabolic disease. Adiponectin is an insulin-sensitizing hormone produced by healthy subcutaneous adipose that may mediate the protective effect of thigh subcutaneous adipose. Testosterone, which is elevated in PCOS, may have an adverse effect on insulin sensitivity/resistance. STUDY DESIGN, SIZE, DURATION Cross-sectional study of 30 women with PCOS and 38 women without PCOS; data were collected between 2007 and 2011. PARTICIPANTS/MATERIALS, SETTING, METHODS Participants were group-matched for obesity, as reflected in BMI (Mean ± SD; PCOS: 31.8 ± 6.0 kg/m2; without PCOS: 31.5 ± 5.0 kg/m2). The whole-body insulin sensitivity index (WBISI) was assessed using a mixed-meal tolerance test; Homeostasis Model Assessment-Insulin resistance (HOMA-IR) was determined from fasting insulin and glucose values. Adipose tissue distribution was determined by computed tomography (CT) scan. Partial correlation analysis, adjusting for total fat mass, was used to identify correlates of WBISI and HOMA-IR within each group of women from measures of body composition, body fat distribution, reproductive-endocrine hormones and adipokines/cytokines. Stepwise multiple linear regression analysis was used to identify the variables that best predicted WBISI and HOMA-IR. MAIN RESULTS AND THE ROLE OF CHANCE Among women with PCOS, both WBISI and HOMA-IR were best predicted by peri-muscular adipose tissue cross-sectional area. Among women without PCOS, both WBISI and HOMA-IR were best predicted by adiponectin and thigh subcutaneous adipose tissue. LIMITATIONS, REASONS FOR CAUTION Small sample size, group matching for BMI and age, and the use of surrogate measures of insulin sensitivity/resistance. WIDER IMPLICATIONS OF THE FINDINGS Because insulin resistance is the root cause of obesity and comorbidities in PCOS, determining its cause could lead to potential therapies. Present results suggest that peri-muscular adipose tissue may play a unique role in determining insulin sensitivity/resistance in women with PCOS. Interventions such as restriction of dietary carbohydrates that have been shown to selectively reduce fatty infiltration of skeletal muscle may decrease the risk for type 2 diabetes in women with PCOS. STUDY FUNDING/COMPETING INTERESTS The study was supported by National Institutes of Health grants R01HD054960, R01DK67538, P30DK56336, P60DK079626, M014RR00032 and UL1RR025777. The authors have no conflicts of interest. TRIAL REGISTRATION NUMBER NCT00726908.
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Affiliation(s)
- Shannon A Morrison
- Department of Families, Communities, and Health Systems, School of Nursing, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Amy M Goss
- Department of Nutrition Sciences, School of Health Professions, University of Alabama at Birmingham, 616A Webb Building, 1675 University Blvd, Birmingham, AL 35294, USA
| | - Ricardo Azziz
- Departments of Obstetrics/Gynecology and Medicine, Augusta University, Augusta, GA 30912, USA
| | - Dheeraj A Raju
- Department of Families, Communities, and Health Systems, School of Nursing, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Barbara A Gower
- Department of Nutrition Sciences, School of Health Professions, University of Alabama at Birmingham, 616A Webb Building, 1675 University Blvd, Birmingham, AL 35294, USA
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Hirsch KR, Smith-Ryan AE, Blue MN, Mock MG, Trexler ET, Ondrak KS. Metabolic characterization of overweight and obese adults. PHYSICIAN SPORTSMED 2016; 44:362-372. [PMID: 27737609 PMCID: PMC5220642 DOI: 10.1080/00913847.2016.1248222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 10/11/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Traditional evaluations of metabolic health may overlook underlying dysfunction in individuals who show no signs of insulin resistance or dyslipidemia. The purpose of this study was to characterize metabolic health in overweight and obese adults using traditional and non-traditional cardiometabolic variables. A secondary purpose was to evaluate differences between overweight/obese and male/female cohorts, respectively. METHODS Forty-nine overweight and obese adults (Mean ± SD; Age = 35.0 ± 8.9 yrs; Body mass index = 33.6 ± 5.2 kg·m-2; Percent body fat [%fat] = 36.7 ± 7.9%) were characterized. Body composition (fat mass [FM], lean mass [LM], %fat) was calculated using a 4-compartment model; visceral adipose tissue (VAT) was quantified using B-mode ultrasound. Resting metabolic rate (RMR) and respiratory exchange ratio (RER) were evaluated using indirect calorimetry. Fasted blood and saliva samples were analyzed for total cholesterol (TC), high-density lipoproteins (HDL), low-density lipoproteins (LDL), triglycerides (TRG), glucose (GLUC), insulin, leptin, estradiol, and cortisol. RESULTS The prevalence of individuals with two or more cardiometabolic risk factors increased from 13%, using traditional risk factors (GLUC, TRG, HDL), to 80% when non-traditional metabolic factors (VAT, LM, RMR, RER, TC, LDL, HOMA-IR) were considered. Between overweight/obese, there were no significant differences in %fat (p = 0.152), VAT (p = 0.959), RER (p = 0.493), lipids/GLUC (p > 0.05), insulin (p = 0.143), leptin (p = 0.053), or cortisol (p = 0.063); obese had higher FM, LM, RMR, and estradiol (p < 0.01). Males had greater LM, RMR, and TRG (p < 0.01); females had greater %fat, and leptin (p < 0.001). There were no significant sex differences in RER, estradiol, insulin, or cortisol (p > 0.05). CONCLUSIONS Evaluating metabolic health beyond BMI and traditional cardiometabolic risk factors can give significant insights into metabolic status. Due to high variability in metabolic health in overweight and obese adults and inherent sex differences, implementation of body composition and visceral fat measures in the clinical setting can improve early identification and approaches to disease prevention.
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Affiliation(s)
- Katie R. Hirsch
- Applied Physiology Lab, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC
- Human Movement Science Curriculum, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC
| | - Abbie E. Smith-Ryan
- Applied Physiology Lab, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC
- Human Movement Science Curriculum, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC
| | - Malia N.M. Blue
- Applied Physiology Lab, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC
- Human Movement Science Curriculum, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC
| | - Meredith G. Mock
- Applied Physiology Lab, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC
| | - Eric T. Trexler
- Applied Physiology Lab, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC
- Human Movement Science Curriculum, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC
| | - Kristin S. Ondrak
- Applied Physiology Lab, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC
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Lipid accumulation product (LAP) as a criterion for the identification of the healthy obesity phenotype in postmenopausal women. Exp Gerontol 2016; 82:81-7. [DOI: 10.1016/j.exger.2016.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 01/11/2023]
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Kumar N. Weight loss endoscopy: Development, applications, and current status. World J Gastroenterol 2016; 22:7069-7079. [PMID: 27610017 PMCID: PMC4988299 DOI: 10.3748/wjg.v22.i31.7069] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/10/2016] [Accepted: 06/28/2016] [Indexed: 02/06/2023] Open
Abstract
Obesity and its comorbidities - including diabetes and obstructive sleep apnea - have taken a large and increasing toll on the United States and the rest of the world. The availability of commercial, clinical, and operative therapies for weight management have not been effective at a societal level. Endoscopic bariatric therapy is gaining acceptance as more effective than diet and lifestyle measures, and less invasive than bariatric surgery. Various endoscopic therapies are analogues of the restrictive or bypass components of bariatric surgery, utilizing gastric remodeling or intestinal anastomosis to achieve proven weight loss and metabolic benefits. Others, such as aspiration therapy, employ novel mechanisms of action. Intragastric balloons have recently been approved by the United States Food and Drug Administration, and a number of other technologies have completed large multicenter trials (such as AspireAssist aspiration therapy and Primary Obesity Surgery Endolumenal). Endoscopic sleeve gastroplasty and transoral outlet reduction for endoscopic revision of gastric bypass have proven safe and effective in a number of studies. As devices are approved for use, data will continue to accumulate for safety, effectiveness, and cost effectiveness. Bariatric endoscopists should be prepared to appropriately target and apply various endoscopic bariatric therapies in the context of a comprehensive long-term weight management program.
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Association between fat free mass and glucose homeostasis: Common knowledge revisited. Ageing Res Rev 2016; 28:46-61. [PMID: 27112523 DOI: 10.1016/j.arr.2016.04.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/11/2016] [Accepted: 04/19/2016] [Indexed: 12/16/2022]
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Silva D, Gabriel R, Moreira M, Abrantes J, Faria A. Foot Rollover Temporal Parameters During Straight-Ahead and Side-Cut Walking in Obese and Nonobese Postmenopausal Women. J Mot Behav 2016; 48:413-23. [PMID: 27254836 DOI: 10.1080/00222895.2015.1123139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The purpose of this study was to compare the temporal foot rollover data between straight-ahead and side-cut walking and to establish a reference dataset for obese and nonobese postmenopausal women. Pressure data were collected using the two-step protocol. The initial, final, and duration of contact of 10 foot areas were measured, as 5 instants and 4 phases. Significant temporal foot rollover differences were found during walking with and without directional changes; however, most of these differences were common for obese and nonobese subjects.The trailing limb during the side-cut task anticipated the initial and final contact of the lateral forefoot and increased midfoot and toes duration, suggesting a greater role of these areas in the initial break and in foot stability. The leading limb throughout the side-cut task exhibited longer duration of the heel, midfoot, and stance phase probably due to an increase in the stride length of the trailing limb and leaning of the trunk toward the inner side of the turn. Additionally, obese women revealed a later final contact and longer contact duration of some metatarsal areas suggesting that the greater inertia of these subjects demands more time to stabilize and prepare the foot for the next step. Please provide 3 to 5 keywords for the article.
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Affiliation(s)
- David Silva
- a Department of Sport Sciences, Exercise and Health , CITAB, University of Trás-os-Montes and Alto Douro , Vila Real , Portugal
| | - Ronaldo Gabriel
- a Department of Sport Sciences, Exercise and Health , CITAB, University of Trás-os-Montes and Alto Douro , Vila Real , Portugal
| | - Maria Moreira
- a Department of Sport Sciences, Exercise and Health , CITAB, University of Trás-os-Montes and Alto Douro , Vila Real , Portugal
| | - João Abrantes
- b MovLab, CICANT, University Lusófona of Humanities and Technologies , Lisboa , Portugal
| | - Aurélio Faria
- c Department of Sport Science , CIDESD, University of Beira Interior , Covilhã , Portugal
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Matta J, Mayo N, Dionne IJ, Gaudreau P, Fulop T, Tessier D, Gray-Donald K, Shatenstein B, Morais JA. Muscle Mass Index and Animal Source of Dietary Protein Are Positively Associated with Insulin Resistance in Participants of the NuAge Study. J Nutr Health Aging 2016; 20:90-7. [PMID: 26812503 DOI: 10.1007/s12603-015-0554-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Contribute evidence towards the complex interrelationships of body composition, insulin sensitivity and protein intake independently from adiposity in an older population. DESIGN This is a cross-sectional analysis of an existing dataset in which a literature-supported model linking together the variables of interest is tested using path analysis. SETTING The loss of muscle mass has been implicated in the development of insulin resistance. We propose to test associations of muscle mass with insulin sensitivity and their respective associations with animal and vegetable sources of protein intake, independently from adiposity. PARTICIPANTS Non-diabetic participants aged 68-82 years from the NuAge study with all available measures (n=441) were included. MEASUREMENTS A model considering age, sex, chronic diseases, physical activity; smoking and sources of protein intake influencing body composition components and insulin sensitivity was created and tested with Path Analysis for their independent associations. Muscle mass index (MMI; kg/height in m2) and % body fat were derived from DXA and BIA. Insulin resistance was estimated by the Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) score and physical activity by the Physical Activity Scale for the Elderly (PASE) questionnaire. Protein intakes were obtained from three non-consecutive 24h-diet recalls. RESULTS In the final model, direct positive associations were observed between HOMA-IR score and MMI (ß=0.42; 95%CI: 0.24; 0.6) and % body fat (ß=0.094; 95%CI: 0.07; 0.11). There were no direct associations between animal protein intake and MMI or with HOMA-IR. There was a significant direct negative association between plant protein intake and MMI (ß= -0.068; 95%CI: -0.13; -0.003) and significant indirect associations mediated through MMI and % body fat between HOMA-IR and animal protein intake (ß=0.0321; 95%CI: 0.01; 0.05), as well as plant protein intake (ß= -0.07; 95%CI: -0.1; 0.0). CONCLUSIONS Our final model indicated that MMI and HOMA score were significantly positively associated. Protein intake sources were related to HOMA-IR score differently through MMI and % body fat, respectively.
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Affiliation(s)
- J Matta
- J.A. Morais, MD, FRCPC, Division of Geriatric Medicine, McGill University Health Centre, Royal Victoria Hospital, 687 Pine Avenue West, Room M8.12, Montréal, Quebec, Canada, H3A 1A1, Phone: (514) 934-1934 loc 34499, Fax: (514) 843-1400, E-mail:
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Liao C, Gao W, Cao W, Lv J, Yu C, Wang S, Zhou B, Pang Z, Cong L, Wang H, Wu X, Li L. Associations of Body Composition Measurements with Serum Lipid, Glucose and Insulin Profile: A Chinese Twin Study. PLoS One 2015; 10:e0140595. [PMID: 26556598 PMCID: PMC4640552 DOI: 10.1371/journal.pone.0140595] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 09/27/2015] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES To quantitate and compare the associations of various body composition measurements with serum metabolites and to what degree genetic or environmental factors affect obesity-metabolite relation. METHODS Body mass index (BMI), waist circumference (WC), lean body mass (LBM), percent body fat (PBF), fasting serum high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), triglycerides (TG), total cholesterol (TC), glucose, insulin and lifestyle factors were assessed in 903 twins from Chinese National Twin Registry (CNTR). Homeostasis model assessment of insulin resistance (HOMA-IR) was calculated from fasting serum glucose and insulin. Linear regression models and bivariate structural equation models were used to examine the relation of various body composition measurements with serum metabolite levels and genetic/environmental influences on these associations, respectively. RESULTS At individual level, adiposity measurements (BMI, WC and PBF) showed significant associations with serum metabolite concentrations in both sexes and the associations still existed in male twins when using within-MZ twin pair comparison analyses. Associations of BMI with TG, insulin and HOMA-IR were significantly stronger in male twins compared to female twins (BMI-by-sex interaction p = 0.043, 0.020 and 0.019, respectively). Comparison of various adiposity measurements with levels of serum metabolites revealed that WC explained the largest fraction of variance in serum LDL-C, TG, TC and glucose concentrations while BMI performed best in explaining variance in serum HDL-C, insulin and HOMA-IR levels. Of these phenotypic correlations, 64-81% were attributed to genetic factors, whereas 19-36% were attributed to unique environmental factors. CONCLUSIONS We observed different associations between adiposity and serum metabolite profile and demonstrated that WC and BMI explained the largest fraction of variance in serum lipid profile and insulin resistance, respectively. To a large degree, shared genetic factors contributed to these associations with the remaining explained by twin-specific environmental factors.
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Affiliation(s)
- Chunxiao Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Wenjing Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- * E-mail: (LML); (WJG)
| | - Weihua Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Canqing Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Shengfeng Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Bin Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Zengchang Pang
- Qingdao Center for Diseases Control and Prevention, Qingdao, China
| | - Liming Cong
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - Hua Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing, China
| | - Xianping Wu
- Sichuan Center for Disease Control and Prevention, Chengdu, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- * E-mail: (LML); (WJG)
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Stefanska A, Bergmann K, Sypniewska G. Metabolic Syndrome and Menopause: Pathophysiology, Clinical and Diagnostic Significance. Adv Clin Chem 2015; 72:1-75. [PMID: 26471080 DOI: 10.1016/bs.acc.2015.07.001] [Citation(s) in RCA: 148] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Menopause is a risk factor for cardiometabolic diseases, including metabolic syndrome (MetS), type 2 diabetes, and cardiovascular diseases. MetS is a constellation of interdependent factors such as insulin resistance, abdominal obesity, dyslipidemia, and hypertension. The prevalence of MetS in postmenopause is due to loss of the protective role of estrogens and increased circulating androgens resulting in changes to body fat distribution and development of abdominal obesity. Excessive visceral adipose tissue plays an important role due to synthesis and secretion of bioactive substances such as adipocytokines, proinflammatory cytokines, reactive oxygen species, prothrombotic, and vasoconstrictor factors. MetS may also impact risk assessment of breast cancer, osteoporosis and chronic kidney disease, and quality of life during the menopausal transition. Increased MetS has stimulated the exploration of new laboratory tests for early detection and therapies.
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Affiliation(s)
- Anna Stefanska
- Department of Laboratory Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.
| | - Katarzyna Bergmann
- Department of Laboratory Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Grazyna Sypniewska
- Department of Laboratory Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
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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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Changes in glucose disposal after a caloric restriction–induced weight loss program in obese postmenopausal women. Menopause 2015; 22:96-103. [DOI: 10.1097/gme.0000000000000273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Mavros Y, Kay S, Simpson KA, Baker MK, Wang Y, Zhao RR, Meiklejohn J, Climstein M, O'Sullivan AJ, de Vos N, Baune BT, Blair SN, Simar D, Rooney K, Singh NA, Fiatarone Singh MA. Reductions in C-reactive protein in older adults with type 2 diabetes are related to improvements in body composition following a randomized controlled trial of resistance training. J Cachexia Sarcopenia Muscle 2014; 5:111-20. [PMID: 24687180 PMCID: PMC4053559 DOI: 10.1007/s13539-014-0134-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 01/27/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Reductions in skeletal muscle mass and increased adiposity are key elements in the aging process and in the pathophysiology of several chronic diseases. Systemic low grade inflammation associated with obesity has been shown to accelerate the age-related decline in skeletal muscle. The aim of this investigation was to determine the effects of 12 months of progressive resistance training (PRT) on systemic inflammation, and whether reductions in systemic inflammation were associated with changes in body composition. We hypothesized that reductions in systemic inflammation following 12 months of PRT in older adults with type 2 diabetes would be associated with reductions in adiposity and increases in skeletal muscle mass. METHODS Participants (n = 103) were randomized to receive either PRT or sham-exercise, 3 days a week for 12 months. C-reactive protein (CRP) was used to assess systemic inflammation. Skeletal muscle mass and total fat mass were determined using bioelectrical impedance. RESULTS Twelve months of PRT tended to reduce CRP compared to sham exercise (β = -0.25, p = 0.087). Using linear mixed-effects models, the hypothesized relationships between body composition adaptations and CRP changes were significantly stronger for skeletal muscle mass (p = 0.04) and tended to be stronger for total fat mass (p = 0.07) following PRT when compared to sham-exercise. Using univariate regression models, stratified by group allocation, reductions in CRP were associated with increases in skeletal muscle mass (p = 0.01) and reductions in total fat mass (p = 0.02) in the PRT group, but not in the sham-exercise group (p = 0.87 and p = 0.32, respectively). CONCLUSIONS We have shown for the first time that reductions in systemic inflammation in older adults with type 2 diabetes following PRT were associated with increases in skeletal muscle mass. Furthermore, reductions in CRP were associated with reductions in adiposity, but only when associated with PRT. Lifestyle interventions aimed at reducing systemic inflammation in older adults with type 2 diabetes should therefore incorporate anabolic exercise such as PRT to optimize the anti-inflammatory benefits of favorable body composition adaptations.
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Affiliation(s)
- Yorgi Mavros
- Exercise Health and Performance Faculty Research Group, Faculty of Health Sciences, University of Sydney, Sydney, Australia,
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Kim HN, Song SW. Concentrations of chromium, selenium, and copper in the hair of viscerally obese adults are associated with insulin resistance. Biol Trace Elem Res 2014; 158:152-7. [PMID: 24643468 DOI: 10.1007/s12011-014-9934-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 03/04/2014] [Indexed: 01/06/2023]
Abstract
Visceral adiposity is linked to the development of insulin resistance, which is a condition that may contribute to metabolic abnormalities and cardiovascular disease. Various minerals play essential roles in different metabolic functions in the body. Thus, the relationships between mineral concentrations in the hair and insulin resistance were analyzed in 144 Korean adults (71 viscerally obese subjects and 73 normal control subjects) in this cross-sectional study. Visceral obesity was measured using a bioelectrical impedance analysis (BIA), and insulin resistance levels were assessed using the homeostasis model assessment insulin resistance (HOMA-IR) index. The viscerally obese group exhibited significantly higher levels of serum glucose (96.5 vs 91.0 mg/dL, P = 0.023), insulin concentration (4.78 vs 2.98 μIU/mL, P = 0.003), and the HOMA-IR index (1.18 vs 0.64, P = 0.003) compared with the normal control group. After adjusting for age and sex, there was a positive correlation between copper levels in the hair and the HOMA-IR index in the viscerally obese group (r = 0.241, P = 0.046) whereas chromium and selenium levels in the hair were negatively correlated with the HOMA-IR index (r = -0.256, P = 0.034, and r = -0.251, P = 0.038, respectively). Thus, chromium and selenium levels in the hair of viscerally obese adults were inversely associated with insulin resistance, whereas copper levels in the hair were positively associated with insulin resistance. This suggests that the mineral status of viscerally obese adults might play a role in the development of insulin resistance.
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Affiliation(s)
- Ha-Na Kim
- Department of Family Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93 Jungbu-daero, Paldal-gu, Suwon, Gyeonggi-do, 442-723, South Korea
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