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Sun M, Gao M, Luo M, Wang T, Ruan X, Tang J, Chen Q, Liu H, Li L, Qin J. Impact of multiple obesity metrics on hypertensive disorders of pregnancy: a meta-analysis and Mendelian randomisation study. Heart 2024:heartjnl-2024-324038. [PMID: 39174317 DOI: 10.1136/heartjnl-2024-324038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 08/06/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND The relationships between various obesity measures and hypertensive disorders of pregnancy (HDP) remain inadequately explored, and their causal links are not well understood. This study aims to clarify these associations and investigate the mediating role of triglycerides. METHODS We conducted a comprehensive meta-analysis of observational studies alongside Mendelian randomisation (MR) analysis to assess the impact of 10 obesity measures on HDP risk. Additionally, we evaluated the mediating effect of triglycerides. RESULTS Our meta-analysis revealed significant associations between maternal prepregnancy overweight/obesity and increased risks of gestational hypertension (GH) (overweight: OR=1.98, 95% CI 1.83 to 2.15; obesity: OR=3.77, 95% CI 3.45 to 4.13) and pre-eclampsia (overweight: OR=1.78, 95% CI 1.67 to 1.90; obesity: OR=3.46, 95% CI 3.16 to 3.79). Higher maternal waist circumference (WC) was also linked to increased pre-eclampsia risk (OR=1.45, 95% CI 1.14 to 1.83). MR analyses indicated that each 1-SD increase in genetically predicted obesity measures (whole body fat mass, body fat percentage, trunk fat mass, trunk fat percentage, body mass index, WC, hip circumference) was associated with higher risks of GH and pre-eclampsia. Triglycerides mediated 4.3%-14.1% of the total genetic effect of these obesity measures on GH and pre-eclampsia risks. CONCLUSIONS This study demonstrates that various obesity measures are causally linked to increased HDP risk and highlights the mediating role of triglycerides. These findings could inform clinical practices and public health strategies aimed at reducing HDP through targeted obesity and triglyceride management.
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Affiliation(s)
- Mengting Sun
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Ming Gao
- Department of Geriatric Medicine, Center of Coronary Circulation, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Manjun Luo
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Tingting Wang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Changsha, Hunan, China
| | - Xiaorui Ruan
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Jiapeng Tang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Qian Chen
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Hanjun Liu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Liuxuan Li
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Jiabi Qin
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Changsha, Hunan, China
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Jang S, Hong W, Moon Y. Obesity-compromised immunity in post-COVID-19 condition: a critical control point of chronicity. Front Immunol 2024; 15:1433531. [PMID: 39188722 PMCID: PMC11345197 DOI: 10.3389/fimmu.2024.1433531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 07/25/2024] [Indexed: 08/28/2024] Open
Abstract
Post-COVID-19 condition is recognized as a multifactorial disorder, with persistent presence of viral antigens, discordant immunity, delayed viral clearance, and chronic inflammation. Obesity has emerged as an independent risk factor for both SARS-CoV-2 infection and its subsequent sequelae. In this study, we aimed to predict the molecular mechanisms linking obesity and post-COVID-19 distress. Viral antigen-exposed adipose tissues display remarkable levels of viral receptors, facilitating viral entry, deposition, and chronic release of inflammatory mediators and cells in patients. Subsequently, obesity-associated inflammatory insults are predicted to disturb cellular and humoral immunity by triggering abnormal cell differentiation and lymphocyte exhaustion. In particular, the decline in SARS-CoV-2 antibody titers and T-cell exhaustion due to chronic inflammation may account for delayed virus clearance and persistent activation of inflammatory responses. Taken together, obesity-associated defective immunity is a critical control point of intervention against post-COVID-19 progression, particularly in subjects with chronic metabolic distress.
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Affiliation(s)
- Soonwoo Jang
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Republic of Korea
- Department of Medicine, Pusan National University, Yangsan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Yangsan, Republic of Korea
| | - Wooyoung Hong
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, United States
| | - Yuseok Moon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Republic of Korea
- Department of Medicine, Pusan National University, Yangsan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Yangsan, Republic of Korea
- Graduate Program of Genomic Data Sciences, Pusan National University, Yangsan, Republic of Korea
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3
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Huang Y, Chen L, Li L, Qi Y, Tong H, Wu H, Xu J, Leng L, Cheema S, Sun G, Xia Z, McGuire J, Rodrigues B, Young LH, Bucala R, Qi D. Downregulation of adipose LPL by PAR2 contributes to the development of hypertriglyceridemia. JCI Insight 2024; 9:e173240. [PMID: 38973609 PMCID: PMC11383372 DOI: 10.1172/jci.insight.173240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 05/22/2024] [Indexed: 07/09/2024] Open
Abstract
Lipoprotein lipase (LPL) hydrolyzes circulating triglycerides (TGs), releasing fatty acids (FA) and promoting lipid storage in white adipose tissue (WAT). However, the mechanisms regulating adipose LPL and its relationship with the development of hypertriglyceridemia are largely unknown. WAT from obese humans exhibited high PAR2 expression, which was inversely correlated with the LPL gene. Decreased LPL expression was also inversely correlated with elevated plasma TG levels, suggesting that adipose PAR2 might regulate hypertriglyceridemia by downregulating LPL. In mice, aging and high palmitic acid diet (PD) increased PAR2 expression in WAT, which was associated with a high level of macrophage migration inhibitory factor (MIF). MIF downregulated LPL expression and activity in adipocytes by binding with CXCR2/4 receptors and inhibiting Akt phosphorylation. In a MIF overexpression model, high-circulating MIF levels suppressed adipose LPL, and this suppression was associated with increased plasma TGs but not FA. Following PD feeding, adipose LPL expression and activity were significantly reduced, and this reduction was reversed in Par2-/- mice. Recombinant MIF infusion restored high plasma MIF levels in Par2-/- mice, and the levels decreased LPL and attenuated adipocyte lipid storage, leading to hypertriglyceridemia. These data collectively suggest that downregulation of adipose LPL by PAR2/MIF may contribute to the development of hypertriglyceridemia.
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Affiliation(s)
- Yiheng Huang
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Liujun Chen
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lisha Li
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yadan Qi
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Haibin Tong
- College of Life and Environment Sciences, Wenzhou University, Wenzhou, Zhejiang, China
| | - Hong Wu
- Institute of Cardiovascular Disease, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Jinjie Xu
- Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Lin Leng
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | | | - Guang Sun
- Faculty of Medicine, Memorial University, St. John's, Newfoundland, Canada
| | - Zhengyuan Xia
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - John McGuire
- Department of Medical Biophysics, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Brian Rodrigues
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lawrence H Young
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Richard Bucala
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Dake Qi
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Faculty of Medicine, Memorial University, St. John's, Newfoundland, Canada
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4
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Reed JN, Huang J, Li Y, Ma L, Banka D, Wabitsch M, Wang T, Ding W, Björkegren JL, Civelek M. Systems genetics analysis of human body fat distribution genes identifies adipocyte processes. Life Sci Alliance 2024; 7:e202402603. [PMID: 38702075 PMCID: PMC11068934 DOI: 10.26508/lsa.202402603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024] Open
Abstract
Excess abdominal fat is a sexually dimorphic risk factor for cardio-metabolic disease and is approximated by the waist-to-hip ratio adjusted for body mass index (WHRadjBMI). Whereas this trait is highly heritable, few causal genes are known. We aimed to identify novel drivers of WHRadjBMI using systems genetics. We used two independent cohorts of adipose tissue gene expression and constructed sex- and depot-specific Bayesian networks to model gene-gene interactions from 8,492 genes. Using key driver analysis, we identified genes that, in silico and putatively in vitro, regulate many others. 51-119 key drivers in each network were replicated in both cohorts. In other cell types, 23 of these genes are found in crucial adipocyte pathways: Wnt signaling or mitochondrial function. We overexpressed or down-regulated seven key driver genes in human subcutaneous pre-adipocytes. Key driver genes ANAPC2 and RSPO1 inhibited adipogenesis, whereas PSME3 increased adipogenesis. RSPO1 increased Wnt signaling activity. In differentiated adipocytes, MIGA1 and UBR1 down-regulation led to mitochondrial dysfunction. These five genes regulate adipocyte function, and we hypothesize that they regulate fat distribution.
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Affiliation(s)
- Jordan N Reed
- https://ror.org/0153tk833 Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
- https://ror.org/0153tk833 Center for Public Health Genomics, University of Virginia, Charlottesville, VA, USA
| | - Jiansheng Huang
- Novo Nordisk Research Center China, Novo Nordisk A/S, Beijing, China
| | - Yong Li
- Novo Nordisk Research Center China, Novo Nordisk A/S, Beijing, China
| | - Lijiang Ma
- https://ror.org/04a9tmd77 Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Dhanush Banka
- https://ror.org/0153tk833 Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Martin Wabitsch
- Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics and Adolescent Medicine, Ulm University Medical Centre, Ulm, Germany
| | - Tianfang Wang
- Novo Nordisk Research Center China, Novo Nordisk A/S, Beijing, China
| | - Wen Ding
- Novo Nordisk Research Center China, Novo Nordisk A/S, Beijing, China
| | - Johan Lm Björkegren
- https://ror.org/04a9tmd77 Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Mete Civelek
- https://ror.org/0153tk833 Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
- https://ror.org/0153tk833 Center for Public Health Genomics, University of Virginia, Charlottesville, VA, USA
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5
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Gildner TE, Urlacher SS, Nemeth KL, Beauregard JA, Pfaff Nash M, Zhang A, Waimon S, Cepon-Robins TJ. Dual burden of infectious and chronic disease in low-resource U.S. communities: examining relationships between infection, adiposity, and inflammation. Ann Hum Biol 2024; 51:2368851. [PMID: 38934696 DOI: 10.1080/03014460.2024.2368851] [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: 12/14/2023] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Rising global obesity rates are linked with inflammation and associated morbidities. These negative outcomes are generally more common in low-resource communities within high-income countries; however, it is unclear how frequent infectious disease exposures in these settings may influence the relationship between adiposity and inflammation. AIM We test associations between adiposity measures and distinct forms of inflammation among adults (n = 80) living in low-resource U.S. communities experiencing high levels of obesity and pathogen exposure. SUBJECTS AND METHODS Adiposity measures included BMI and percent body fat. Inflammation measures included systemic inflammation (C-reactive protein [CRP]) and localised intestinal inflammation (faecal calprotectin [FC]). The relationship between a condition characterised by elevated inflammation (Helicobacter pylori infection) and adiposity was also considered. RESULTS Adiposity was not significantly related to FC concentration. However, both adiposity measures were positively related with odds of CRP elevation and H. pylori infection was associated with significantly lower adiposity measures (all p < 0.05). CONCLUSION For this disadvantaged U.S. sample, the association between adiposity and inflammation varies by the systemic/localised nature of inflammation and the likely underlying cause of inflammation. Defining these associations will improve understanding of how rising obesity rates shape long-term health inequities, with implications for more effective intervention design.
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Affiliation(s)
- Theresa E Gildner
- Department of Anthropology, Washington University in St. Louis, St. Louis, MO, USA
| | - Samuel S Urlacher
- Department of Anthropology, Baylor University, Waco, TX, USA
- Child and Brain Development Program, CIFAR, Toronto, Canada
| | - Katherine L Nemeth
- Department of Anthropology, Washington University in St. Louis, St. Louis, MO, USA
| | - Jade A Beauregard
- Department of Anthropology, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Angela Zhang
- Department of Anthropology, Washington University in St. Louis, St. Louis, MO, USA
| | - Sophie Waimon
- Department of Anthropology, Washington University in St. Louis, St. Louis, MO, USA
| | - Tara J Cepon-Robins
- Department of Anthropology, University of Colorado Colorado Springs, Colorado Springs, CO, USA
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6
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Su Z, Efremov L, Mikolajczyk R. Differences in the levels of inflammatory markers between metabolically healthy obese and other obesity phenotypes in adults: A systematic review and meta-analysis. Nutr Metab Cardiovasc Dis 2024; 34:251-269. [PMID: 37968171 DOI: 10.1016/j.numecd.2023.09.002] [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: 03/30/2023] [Revised: 07/28/2023] [Accepted: 09/04/2023] [Indexed: 11/17/2023]
Abstract
AIMS The aim of this study was to systematically review and analyze differences in the levels of C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α) comparing metabolically healthy but obese (MHO) with metabolically healthy non-obese (MHNO), metabolically unhealthy non-obese (MUNO), and metabolically unhealthy obese (MUO) subjects. DATA SYNTHESIS We searched PubMed, Embase, Web of Science, and Scopus for studies that matched the relevant search terms. Differences in inflammatory marker levels between MHO and the other three phenotypes were pooled as standardized mean differences (SMD) or differences of medians (DM) using a random-effects model. We included 91 studies reporting data on 435,007 individuals. The CRP levels were higher in MHO than in MHNO subjects (SMD = 0.63, 95% CI: 0.49, 0.76; DM = 0.83 mg/L, 95% CI: 0.56, 1.11). The CRP levels were higher in MHO than in MUNO subjects (SMD = 0.16, 95% CI: 0.05, 0.28; DM = 0.39 mg/L, 95% CI: 0.09, 0.69). The CRP levels were lower in MHO than in MUO individuals (SMD = -0.43, 95% CI: -0.54, -0.31; DM = -0.82 mg/L, 95% CI: -1.16, -0.48). The IL-6 levels in MHO were higher than in MHNO while lower than in MUO subjects. The TNF-α levels in MHO were higher than in MHNO individuals. CONCLUSIONS This review provides evidence that CRP levels in MHO are higher than in MHNO and MUNO subjects but lower than in MUO individuals. Additionally, IL-6 levels in MHO are higher than in MHNO but lower than in MUO subjects, and TNF-α levels in MHO are higher than in MHNO individuals. SYSTEMATIC REVIEW REGISTRATION PROSPERO number: CRD42021234948.
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Affiliation(s)
- Zhouli Su
- Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Martin-Luther-University Halle-Wittenberg, D-06112 Halle (Saale), Germany
| | - Ljupcho Efremov
- Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Martin-Luther-University Halle-Wittenberg, D-06112 Halle (Saale), Germany; Department of Radiation Oncology, Martin-Luther-University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Rafael Mikolajczyk
- Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Martin-Luther-University Halle-Wittenberg, D-06112 Halle (Saale), Germany.
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Kosovski IB, Bacârea V, Ghiga D, Ciurea CN, Cucoranu DC, Hutanu A, Bacârea A. Exploring the Link between Inflammatory Biomarkers and Adipometrics in Healthy Young Adults Aged 20-35 Years. Nutrients 2024; 16:257. [PMID: 38257150 PMCID: PMC10819707 DOI: 10.3390/nu16020257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/11/2024] [Accepted: 01/14/2024] [Indexed: 01/24/2024] Open
Abstract
Obesity and aging are associated with an inflammatory state, which represents the common background for a wide range of diseases. This study aims to explore the correlation between hsCRP, IL-1β, IL-6, TNF-α, IFN-γ, and white blood cell count (WBC) and adipometrics (arm, waist, and hip circumferences: AC, WC, HC; total body fat mass: TBFM, visceral fat level: VFL, body mass index: BMI; waist/hip ratio: WHR; waist/height ratio: WHtR) in young and healthy adults aged 20-35 years old. The subjects were divided by BMI into the overweight/obesity (OW/OB) group and normal weight (NW) group, and by hsCRP level into Group 1 (<1 mg/L), Group 2 (≥1-2.99 mg/L), and Group 3 (≥3 mg/L). The concentration of all inflammatory biomarkers was significantly higher in the OW/OB group compared to the NW group, with the exception of IL-1β. Significant positive correlations were found between hsCRP, TNF-α, WBC, and all adipometrics; between IL-6 and WHR, WHtR, BMI, TBFM, and VFL; and between IFN-γ and HC, BMI, and TBFM. IL-1β correlates positively with WHR and VFL. In Groups 1-3, all the differences between the adipometrics showed significant differences. Subclinical inflammation persists in association with being overweight and obese in healthy young adults aged 20-35 years old.
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Affiliation(s)
- Irina Bianca Kosovski
- Department of Pathophysiology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania; (I.B.K.); (A.B.)
- Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania
| | - Vladimir Bacârea
- Department of Research Methodology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania;
| | - Dana Ghiga
- Department of Research Methodology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania;
| | - Cristina Nicoleta Ciurea
- Department of Microbiology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania;
| | | | - Adina Hutanu
- Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology Târgu Mureș, 540139 Târgu Mureș, Romania;
| | - Anca Bacârea
- Department of Pathophysiology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540139 Târgu Mureș, Romania; (I.B.K.); (A.B.)
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8
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Çelik N, Ünsal G, Taştanoğlu H. Predictive markers of metabolically healthy obesity in children and adolescents: can AST/ALT ratio serve as a simple and reliable diagnostic indicator? Eur J Pediatr 2024; 183:243-251. [PMID: 37870612 DOI: 10.1007/s00431-023-05296-3] [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: 08/12/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
This study aimed to estimate the prevalence of metabolically healthy obesity (MHO) according to two different consensus-based criteria and to investigate simple, measurable predictive markers for the diagnosis of MHO. Five hundred and ninety-three obese children and adolescents aged 6-18 years were included in the study. The frequency of MHO was calculated. ROC analysis was used to estimate the predictive value of AST/ALT ratio, waist/hip ratio, MPV, TSH, and Ft4 cut-off value for the diagnosis of MHO. The prevalence of MHO was 21.9% and 10.2% according to 2018 and 2023 consensus-based MHO criteria, respectively. AST/ALT ratio cut-off value for the diagnosis of MHO was calculated as ≥ 1 with 77% sensitivity and 52% specificity using Damanhoury et al.'s criteria (AUC = 0.61, p = 0.02), and 90% sensitivity and 51% specificity using Abiri et al.'s criteria (AUC = 0.70, p = 0.01). Additionally, using binomial regression analysis, only the AST/ALT ratio is independently and significantly associated with the diagnosis of MHO (p = 0.03 for 2018 criteria and p = 0.04 for 2023 criteria). CONCLUSION The ALT/AST ratio may be a useful indicator of MHO in children and adolescents. WHAT IS KNOWN • Metabolically healthy obesity refers to people who are obese but do not have any of the standard cardio-metabolic risk factors. • Metabolically healthy obesity is not entirely harmless; the metabolic characteristics of individuals with this phenotype are less favorable than those of healthy lean groups. Moreover, it is not a constant state, and there may be a transition to metabolically unhealthy phenotypes over time. WHAT IS NEW • The prevalence of MHO is 21.9% and 10.2% according to 2018 and 2023 consensus-based metabolically healthy obesity criteria, respectively. • The ALT/AST ratio may be a useful indicator of metabolically healthy obesity in children and adolescents.
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Affiliation(s)
- Nurullah Çelik
- Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Medicine, Cumhuriyet University, Sivas, Turkey.
| | - Gülşah Ünsal
- Department of Pediatrics, Faculty of Medicine, Cumhuriyet University, Sivas, Turkey
| | - Hüseyin Taştanoğlu
- Department of Pediatrics, Faculty of Medicine, Cumhuriyet University, Sivas, Turkey
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9
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Gutowska K, Koźniewski K, Wąsowski M, Jonas MI, Bartoszewicz Z, Lisik W, Jonas M, Binda A, Jaworski P, Tarnowski W, Noszczyk B, Puzianowska-Kuźnicka M, Czajkowski K, Kuryłowicz A. AGER-1 Long Non-Coding RNA Levels Correlate with the Expression of the Advanced Glycosylation End-Product Receptor, a Regulator of the Inflammatory Response in Visceral Adipose Tissue of Women with Obesity and Type 2 Diabetes Mellitus. Int J Mol Sci 2023; 24:17447. [PMID: 38139276 PMCID: PMC10743952 DOI: 10.3390/ijms242417447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/08/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023] Open
Abstract
The advanced glycosylation end-product receptor (AGER) is involved in the development of metabolic inflammation and related complications in type 2 diabetes mellitus (T2DM). Tissue expression of the AGER gene (AGER) is regulated by epigenetic mediators, including a long non-coding RNA AGER-1 (lncAGER-1). This study aimed to investigate whether human obesity and T2DM are associated with an altered expression of AGER and lncAGER-1 in adipose tissue and, if so, whether these changes affect the local inflammatory milieu. The expression of genes encoding AGER, selected adipokines, and lncAGER-1 was assessed using real-time PCR in visceral (VAT) and subcutaneous (SAT) adipose tissue. VAT and SAT samples were obtained from 62 obese (BMI > 40 kg/m2; N = 24 diabetic) and 20 normal weight (BMI = 20-24.9 kg/m2) women, while a further 15 SAT samples were obtained from patients who were 18 to 24 months post-bariatric surgery. Tissue concentrations of adipokines were measured at the protein level using an ELISA-based method. Obesity was associated with increased AGER mRNA levels in SAT compared to normal weight status (p = 0.04) and surgical weight loss led to their significant decrease compared to pre-surgery levels (p = 0.01). Stratification by diabetic status revealed that AGER mRNA levels in VAT were higher in diabetic compared to non-diabetic women (p = 0.018). Elevated AGER mRNA levels in VAT of obese diabetic patients correlated with lncAGER-1 (p = 0.04, rs = 0.487) and with interleukin 1β (p = 0.008, rs = 0.525) and resistin (p = 0.004, rs = 0.6) mRNA concentrations. In conclusion, obesity in women is associated with increased expression of AGER in SAT, while T2DM is associated with increased AGER mRNA levels and pro-inflammatory adipokines in VAT.
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Affiliation(s)
- Klaudia Gutowska
- II Department of Obstetrics and Gynecology, Warsaw Medical University, 00-315 Warsaw, Poland; (K.G.); (K.C.)
| | - Krzysztof Koźniewski
- Department of Human Epigenetics, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (K.K.); (M.I.J.); (M.P.-K.)
| | - Michał Wąsowski
- Department of General Medicine and Geriatric Cardiology, Medical Centre of Postgraduate Education, 00-401 Warsaw, Poland;
| | - Marta Izabela Jonas
- Department of Human Epigenetics, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (K.K.); (M.I.J.); (M.P.-K.)
| | - Zbigniew Bartoszewicz
- Department of Internal Medicine and Endocrinology, The Medical University of Warsaw, 02- 097 Warsaw, Poland;
| | - Wojciech Lisik
- Department of General and Transplantation Surgery, The Medical University of Warsaw, 02-005 Warsaw, Poland;
| | - Maurycy Jonas
- Department of General Surgery, Barska Hospital, 02-315 Warsaw, Poland;
| | - Artur Binda
- Department of General, Oncological and Bariatric Surgery, Medical Centre of Postgraduate Education, 00-401 Warsaw, Poland; (A.B.); (P.J.); (W.T.)
| | - Paweł Jaworski
- Department of General, Oncological and Bariatric Surgery, Medical Centre of Postgraduate Education, 00-401 Warsaw, Poland; (A.B.); (P.J.); (W.T.)
| | - Wiesław Tarnowski
- Department of General, Oncological and Bariatric Surgery, Medical Centre of Postgraduate Education, 00-401 Warsaw, Poland; (A.B.); (P.J.); (W.T.)
| | - Bartłomiej Noszczyk
- Department of Plastic Surgery, Medical Centre of Postgraduate Education, 00-401 Warsaw, Poland;
| | - Monika Puzianowska-Kuźnicka
- Department of Human Epigenetics, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (K.K.); (M.I.J.); (M.P.-K.)
- Department of Geriatrics and Gerontology, Medical Centre of Postgraduate Education, 01-826 Warsaw, Poland
| | - Krzysztof Czajkowski
- II Department of Obstetrics and Gynecology, Warsaw Medical University, 00-315 Warsaw, Poland; (K.G.); (K.C.)
| | - Alina Kuryłowicz
- Department of Human Epigenetics, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (K.K.); (M.I.J.); (M.P.-K.)
- Department of General Medicine and Geriatric Cardiology, Medical Centre of Postgraduate Education, 00-401 Warsaw, Poland;
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10
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Ford H, Liu Q, Fu X, Strieder-Barboza C. White Adipose Tissue Heterogeneity in the Single-Cell Era: From Mice and Humans to Cattle. BIOLOGY 2023; 12:1289. [PMID: 37886999 PMCID: PMC10604679 DOI: 10.3390/biology12101289] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023]
Abstract
Adipose tissue is a major modulator of metabolic function by regulating energy storage and by acting as an endocrine organ through the secretion of adipokines. With the advantage of next-generation sequencing-based single-cell technologies, adipose tissue has been studied at single-cell resolution, thus providing unbiased insight into its molecular composition. Recent single-cell RNA sequencing studies in human and mouse models have dissected the transcriptional cellular heterogeneity of subcutaneous (SAT), visceral (VAT), and intramuscular (IMAT) white adipose tissue depots and revealed unique populations of adipose tissue progenitor cells, mature adipocytes, immune cell, vascular cells, and mesothelial cells that play direct roles on adipose tissue function and the development of metabolic disorders. In livestock species, especially in bovine, significant gaps of knowledge remain in elucidating the roles of adipose tissue cell types and depots on driving the pathogenesis of metabolic disorders and the distinct fat deposition in VAT, SAT, and IMAT in meat animals. This review summarizes the current knowledge on the transcriptional and functional cellular diversity of white adipose tissue revealed by single-cell approaches and highlights the depot-specific function of adipose tissue in different mammalian species, with a particular focus on recent findings and future implications in cattle.
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Affiliation(s)
- Hunter Ford
- Department of Veterinary Sciences, Davis College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409, USA;
| | - Qianglin Liu
- School of Animal Sciences, Agricultural Center, Louisiana State University, Baton Rouge, LA 70803, USA; (Q.L.); (X.F.)
| | - Xing Fu
- School of Animal Sciences, Agricultural Center, Louisiana State University, Baton Rouge, LA 70803, USA; (Q.L.); (X.F.)
| | - Clarissa Strieder-Barboza
- Department of Veterinary Sciences, Davis College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409, USA;
- School of Veterinary Medicine, Texas Tech University, Amarillo, TX 79106, USA
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11
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Reed JN, Huang J, Li Y, Ma L, Banka D, Wabitsch M, Wang T, Ding W, Björkegren JLM, Civelek M. Systems genetics analysis of human body fat distribution genes identifies Wnt signaling and mitochondrial activity in adipocytes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.06.556534. [PMID: 37732278 PMCID: PMC10508754 DOI: 10.1101/2023.09.06.556534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
BACKGROUND Excess fat in the abdomen is a sexually dimorphic risk factor for cardio-metabolic disease. The relative storage between abdominal and lower-body subcutaneous adipose tissue depots is approximated by the waist-to-hip ratio adjusted for body mass index (WHRadjBMI). Genome-wide association studies (GWAS) identified 346 loci near 495 genes associated with WHRadjBMI. Most of these genes have unknown roles in fat distribution, but many are expressed and putatively act in adipose tissue. We aimed to identify novel sex- and depot-specific drivers of WHRadjBMI using a systems genetics approach. METHODS We used two independent cohorts of adipose tissue gene expression with 362 - 444 males and 147 - 219 females, primarily of European ancestry. We constructed sex- and depot- specific Bayesian networks to model the gene-gene interactions from 8,492 adipose tissue genes. Key driver analysis identified genes that, in silico and putatively in vitro, regulate many others, including the 495 WHRadjBMI GWAS genes. Key driver gene function was determined by perturbing their expression in human subcutaneous pre-adipocytes using lenti-virus or siRNA. RESULTS 51 - 119 key drivers in each network were replicated in both cohorts. We used single-cell expression data to select replicated key drivers expressed in adipocyte precursors and mature adipocytes, prioritized genes which have not been previously studied in adipose tissue, and used public human and mouse data to nominate 53 novel key driver genes (10 - 21 from each network) that may regulate fat distribution by altering adipocyte function. In other cell types, 23 of these genes are found in crucial adipocyte pathways: Wnt signaling or mitochondrial function. We selected seven genes whose expression is highly correlated with WHRadjBMI to further study their effects on adipogenesis/Wnt signaling (ANAPC2, PSME3, RSPO1, TYRO3) or mitochondrial function (C1QTNF3, MIGA1, PSME3, UBR1).Adipogenesis was inhibited in cells overexpressing ANAPC2 and RSPO1 compared to controls. RSPO1 results are consistent with a positive correlation between gene expression in the subcutaneous depot and WHRadjBMI, therefore lower relative storage in the subcutaneous depot. RSPO1 inhibited adipogenesis by increasing β-catenin activation and Wnt-related transcription, thus repressing PPARG and CEBPA. PSME3 overexpression led to more adipogenesis than controls. In differentiated adipocytes, MIGA1 and UBR1 downregulation led to mitochondrial dysfunction, with lower oxygen consumption than controls; MIGA1 knockdown also lowered UCP1 expression. SUMMARY ANAPC2, MIGA1, PSME3, RSPO1, and UBR1 affect adipocyte function and may drive body fat distribution.
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12
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Zoico E, Saatchi T, Nori N, Mazzali G, Rizzatti V, Pizzi E, Fantin F, Giani A, Urbani S, Zamboni M. Senescent adipocytes as potential effectors of muscle cells dysfunction: An in vitro model. Exp Gerontol 2023; 179:112233. [PMID: 37321332 DOI: 10.1016/j.exger.2023.112233] [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: 11/03/2022] [Revised: 05/31/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023]
Abstract
Recently, there has been a growing body of evidence showing a negative effect of the white adipose tissue (WAT) dysfunction on the skeletal muscle function and quality. However, little is known about the effects of senescent adipocytes on muscle cells. Therefore, to explore potential mechanisms involved in age-related loss of muscle mass and function, we performed an in vitro experiment using conditioned medium obtained from cultures of mature and aged 3 T3-L1 adipocytes, as well as from cultures of dysfunctional adipocytes exposed to oxidative stress or high insulin doses, to treat C2C12 myocytes. The results from morphological measures indicated a significant decrease in diameter and fusion index of myotubes after treatment with medium of aged or stressed adipocytes. Aged and stressed adipocytes presented different morphological characteristics as well as a different gene expression profile of proinflammatory cytokines and ROS production. In myocytes treated with different adipocytes' conditioned media, we demonstrated a significant reduction of gene expression of myogenic differentiation markers as well as a significant increase of genes involved in atrophy. Finally, a significant reduction in protein synthesis as well as a significant increase of myostatin was found in muscle cells treated with medium of aged or stressed adipocytes compared to controls. In conclusion, these preliminary results suggest that aged adipocytes could influence negatively trophism, function and regenerative capacity of myocytes by a paracrine network of signaling.
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Affiliation(s)
- Elena Zoico
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Tanaz Saatchi
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy.
| | - Nicole Nori
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Gloria Mazzali
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Vanni Rizzatti
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
| | - Eleonora Pizzi
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
| | - Francesco Fantin
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Anna Giani
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Silvia Urbani
- Department of Medicine, Geriatric Section, University of Verona, Verona, Italy
| | - Mauro Zamboni
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
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13
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Huang Y, Cui D, Chen L, Tong H, Wu H, Muller GK, Qi Y, Wang S, Xu J, Gao X, Fifield KE, Wang L, Xia Z, Vanderluit JL, Liu S, Leng L, Sun G, McGuire J, Young LH, Bucala R, Qi D. A pref-1-controlled non-inflammatory mechanism of insulin resistance. iScience 2023; 26:106923. [PMID: 37283810 PMCID: PMC10239698 DOI: 10.1016/j.isci.2023.106923] [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: 01/24/2023] [Revised: 04/21/2023] [Accepted: 05/15/2023] [Indexed: 06/08/2023] Open
Abstract
While insulin resistance (IR) is associated with inflammation in white adipose tissue, we report a non-inflammatory adipose mechanism of high fat-induced IR mediated by loss of Pref-1. Pref-1, released from adipose Pref-1+ cells with characteristics of M2 macrophages, endothelial cells or progenitors, inhibits MIF release from both Pref-1+ cells and adipocytes by binding with integrin β1 and inhibiting the mobilization of p115. High palmitic acid induces PAR2 expression in Pref-1+ cells, downregulating Pref-1 expression and release in an AMPK-dependent manner. The loss of Pref-1 increases adipose MIF secretion contributing to non-inflammatory IR in obesity. Treatment with Pref-1 blunts the increase in circulating plasma MIF levels and subsequent IR induced by a high palmitic acid diet. Thus, high levels of fatty acids suppress Pref-1 expression and secretion, through increased activation of PAR2, resulting in an increase in MIF secretion and a non-inflammatory adipose mechanism of IR.
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Affiliation(s)
- Yiheng Huang
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Donghong Cui
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liujun Chen
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Haibin Tong
- College of Life and Environment Sciences, Wenzhou University, Wenzhou, Zhejiang, China
| | - Hong Wu
- Institute of Cardiovascular Disease, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Grace K. Muller
- Department of Cell and Molecular Physiology, Loyola University, Chicago, IL, USA
| | - Yadan Qi
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Shuxia Wang
- Department of Cardiology, The General Hospital of Chinese PLA, Beijing, China
| | - Jinjie Xu
- Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Xiang Gao
- College of Life Sciences, Qingdao University, Qingdao, Shandong, China
| | - Kathleen E. Fifield
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL, Canada
| | - Lingyan Wang
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL, Canada
| | | | - Jacqueline L. Vanderluit
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL, Canada
| | - Suixin Liu
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Lin Leng
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Guang Sun
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL, Canada
| | - John McGuire
- Department of Medical Biophysics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Lawrence H. Young
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT, USA
| | - Richard Bucala
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Dake Qi
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL, Canada
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14
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Omran F, Murphy AM, Younis AZ, Kyrou I, Vrbikova J, Hainer V, Sramkova P, Fried M, Ball G, Tripathi G, Kumar S, McTernan PG, Christian M. The impact of metabolic endotoxaemia on the browning process in human adipocytes. BMC Med 2023; 21:154. [PMID: 37076885 PMCID: PMC10116789 DOI: 10.1186/s12916-023-02857-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 04/03/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND Dysfunctional adipose tissue (AT) is known to contribute to the pathophysiology of metabolic disease, including type 2 diabetes mellitus (T2DM). This dysfunction may occur, in part, as a consequence of gut-derived endotoxaemia inducing changes in adipocyte mitochondrial function and reducing the proportion of BRITE (brown-in-white) adipocytes. Therefore, the present study investigated whether endotoxin (lipopolysaccharide; LPS) directly contributes to impaired human adipocyte mitochondrial function and browning in human adipocytes, and the relevant impact of obesity status pre and post bariatric surgery. METHODS Human differentiated abdominal subcutaneous (AbdSc) adipocytes from participants with obesity and normal-weight participants were treated with endotoxin to assess in vitro changes in mitochondrial function and BRITE phenotype. Ex vivo human AbdSc AT from different groups of participants (normal-weight, obesity, pre- and 6 months post-bariatric surgery) were assessed for similar analyses including circulating endotoxin levels. RESULTS Ex vivo AT analysis (lean & obese, weight loss post-bariatric surgery) identified that systemic endotoxin negatively correlated with BAT gene expression (p < 0.05). In vitro endotoxin treatment of AbdSc adipocytes (lean & obese) reduced mitochondrial dynamics (74.6% reduction; p < 0.0001), biogenesis (81.2% reduction; p < 0.0001) and the BRITE phenotype (93.8% reduction; p < 0.0001). Lean AbdSc adipocytes were more responsive to adrenergic signalling than obese AbdSc adipocytes; although endotoxin mitigated this response (92.6% reduction; p < 0.0001). CONCLUSIONS Taken together, these data suggest that systemic gut-derived endotoxaemia contributes to both individual adipocyte dysfunction and reduced browning capacity of the adipocyte cell population, exacerbating metabolic consequences. As bariatric surgery reduces endotoxin levels and is associated with improving adipocyte functionality, this may provide further evidence regarding the metabolic benefits of such surgical interventions.
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Affiliation(s)
- Farah Omran
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV2 2DX, UK
| | - Alice M Murphy
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| | - Awais Z Younis
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry, CV2 2DX, UK
- Centre for Sport, Exercise and Life Sciences, Research Institute for Health & Wellbeing, Coventry University, Coventry, CV1 5FB, UK
- Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham, B4 7ET, UK
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | | | | | | | | | - Graham Ball
- Medical Technology Research Centre, Anglia Ruskin University, Cambridge, UK
| | - Gyanendra Tripathi
- Human Sciences Research Centre, College of Life and Natural Sciences, University of Derby, Derby, DE22 1GB, UK
| | - Sudhesh Kumar
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry, CV2 2DX, UK
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - Philip G McTernan
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK.
| | - Mark Christian
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK.
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15
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Abiri B, Valizadeh M, Amini S, Kelishadi R, Hosseinpanah F. Risk factors, cutoff points, and definition of metabolically healthy/unhealthy obesity in children and adolescents: A scoping review of the literature. Obes Rev 2023; 24:e13548. [PMID: 36624970 DOI: 10.1111/obr.13548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 11/29/2022] [Accepted: 12/27/2022] [Indexed: 01/11/2023]
Abstract
Diagnosis of metabolically healthy obesity (MHO) and its definition do not have universal criteria in the pediatric age group. Hence, this scoping review aims to identify the components, the cutoff points, and the definition of MHO in children and adolescents. A comprehensive, systematic search was conducted in PubMed, Scopus, EMBASE, and Google Scholar databases. A consensus-based definition of MHO was developed through a Delphi process involving an international panel of 23 experts. This review included a total of 63 non-randomized studies, published between 2007 and 2022. According to our consensus (≥80% agreement), the proposed definition for MHO included the following components: high-density lipoprotein cholesterol >40 mg/dl (or >1.03 mmol/l), triglycerides ≤150 mg/dl (or ≤1.7 mmol/l), fasting plasma glucose <100 mg/dl (or <5.6 mmol/l), a measure of insulin, and systolic and diastolic blood pressure ≤90th percentile. Therefore, MHO was defined as the absence of the above metabolic risk factors; and those children and adolescents with one or more criteria were considered as metabolically unhealthy. A universal definition of MHO will allow comparisons between studies in the field of childhood obesity and can be useful in clinical practice.
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Affiliation(s)
- Behnaz Abiri
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Valizadeh
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shirin Amini
- Department of Nutrition, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farhad Hosseinpanah
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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16
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Predictive and prognostic effect of computed tomography-derived body composition analysis during neoadjuvant chemotherapy for operable and locally advanced breast cancer. Nutrition 2023; 105:111858. [PMID: 36323147 DOI: 10.1016/j.nut.2022.111858] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 09/09/2022] [Accepted: 09/22/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Excess adiposity is associated with several factors involved in carcinogenesis and breast cancer progression. Evidence supporting the role of body composition in breast cancer treatment is promising, but still scanty and mainly focused on adjuvant treatment. The aim of this study was to evaluate the changes in body composition during neoadjuvant chemotherapy and its association with pathologic complete response and survival outcome in patients treated for operable/locally advanced breast cancer. METHODS A retrospective review of patients with breast cancer treated with neoadjuvant chemotherapy was performed in the Oncology Section of the Department of Medicine, University of Verona between 2014 and 2019. Body composition was evaluated from clinically acquired computed tomography scans at diagnosis and after neoadjuvant chemotherapy. Descriptive statistic was adopted. The associations of body composition measures with pathologic complete response and disease-free survival were analyzed. Kaplan-Meier curves were compared with log-rank analysis. RESULTS Data from 93 patients were collected. After neoadjuvant chemotherapy, the adipose compound changed significantly across all body mass index categories. Body composition parameters had no significant effect on pathologic complete response. Survival analysis showed that a high gain of visceral adipose tissue during neoadjuvant chemotherapy was associated with shorter disease-free survival (hazard ratio, 10.2; P = 0.026). In particular, disease-free survival was significantly worse in patients who gained ≥10% of visceral adipose tissue compared with patients who gained <10% of visceral adipose tissue (5-y disease-free survival 71.4 versus 96.3, P = 0.009, respectively). CONCLUSIONS Our results indicated that neoadjuvant chemotherapy significantly affects body composition, which seems to have an effect on survival outcome of breast cancer, highlighting the relevance of the body composition assessment when estimating treatment outcomes.
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17
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The oxytocin signalling gene pathway contributes to the association between loneliness and cardiometabolic health. Psychoneuroendocrinology 2022; 144:105875. [PMID: 35939863 DOI: 10.1016/j.psyneuen.2022.105875] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/23/2022]
Abstract
Increasing evidence has shown adverse effects of loneliness on cardiometabolic health. The neuromodulator and hormone oxytocin has traditionally been linked with social cognition and behaviour. However, recent implications of the oxytocin system in energy metabolism and the overrepresentation of metabolic issues in psychiatric illness suggests that oxytocin may represent a mechanism bridging mental and somatic traits. To clarify the role of the oxytocin signalling system in the link between cardiometabolic risk factors and loneliness, we calculated the contribution of single nucleotide polymorphisms (SNPs) in the oxytocin signalling pathway gene-set (154 genes) to the polygenic architecture of loneliness and body mass index (BMI). We investigated the associations of these oxytocin signalling pathway polygenic scores with body composition measured using body magnetic resonance imaging (MRI), bone mineral density (BMD), haematological markers, and blood pressure in a sample of just under half a million adults from the UK Biobank (BMD subsample n = 274,457; body MRI subsample n = 9796). Our analysis revealed significant associations of the oxytocin signalling pathway polygenic score for BMI with abdominal subcutaneous fat tissue, HDL cholesterol, lipoprotein(a), triglycerides, and BMD. We also found an association between the oxytocin signalling pathway polygenic score for loneliness and apolipoprotein A1, the major protein component of HDL. Altogether, these results provide additional evidence for the oxytocin signalling pathway's role in energy metabolism, lipid homoeostasis, and bone density, and support oxytocin's complex pleiotropic effects.
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18
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Cavalheiro EKFF, da Silva LE, Oliveira MP, Silva MG, Damiani AP, Ribeiro CB, Magenis ML, Cucker L, Michels M, Joaquim L, Machado RS, Vilela TC, Bitencourt RM, Andrade VM, Dal-Pizzol F, Petronilho F, Tuon T, Rezin GT. Effects of obesity on neuroinflammatory and neurochemical parameters in an animal model of reserpine-induced Parkinson's disease. Behav Brain Res 2022; 434:114019. [PMID: 35872330 DOI: 10.1016/j.bbr.2022.114019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/30/2022] [Accepted: 07/19/2022] [Indexed: 12/06/2022]
Abstract
Obesity is associated with low-grade chronic inflammation and oxidative stress, affecting the brain's reward system by decreasing dopaminergic neurotransmission. It is known that dopaminergic neurotransmission is also reduced in Parkinson's disease (PD), and high adiposity is considered a risk factor for the development of several neurodegenerative diseases, including PD. This study aimed to assess the effects of obesity on neuroinflammatory and neurochemical parameters in an animal model of reserpine-induced PD. The obese group showed increased inflammation and oxidative damage as well as inhibition of mitochondrial respiratory chain complexes I and II and DNA damage in the evaluated structures. The PD group did not show inflammation or mitochondrial dysfunction but exhibited oxidative damage in the hippocampus. The combination group (obesity + PD) showed reduced inflammation and oxidative stress and increased activity of complexes I and II of the mitochondrial respiratory chain in most of the analyzed structures. On the other hand, obesity + PD caused oxidative damage to proteins in the liver, prefrontal cortex, striatum, and cerebral cortex and oxidative stress in the hypothalamus, resulting in reduced catalase activity. Furthermore, the combination group showed DNA damage in blood, liver, and cerebral cortex. In conclusion, it was observed that the association of obesity and PD did not increase inflammation, oxidative stress, or mitochondrial dysfunction in most of the evaluated structures but increased oxidative damage and induced mechanisms that led to DNA damage in peripheral tissues and brain structures.
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Affiliation(s)
- Eulla Keimili Fernandes Ferreira Cavalheiro
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Larissa Espindola da Silva
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Mariana P Oliveira
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Marina G Silva
- Laboratory of Behavioral Neuroscience, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Adriani P Damiani
- Laboratório de Biologia Celular e Molecular, Universidade do Extremo Sul Catarinense, UNESC, Avenida Universitária, 1105, Criciúma, SC, Brazil
| | - Catharina B Ribeiro
- Laboratório de Biologia Celular e Molecular, Universidade do Extremo Sul Catarinense, UNESC, Avenida Universitária, 1105, Criciúma, SC, Brazil
| | - Marina L Magenis
- Laboratório de Biologia Celular e Molecular, Universidade do Extremo Sul Catarinense, UNESC, Avenida Universitária, 1105, Criciúma, SC, Brazil
| | - Luana Cucker
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Monique Michels
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Larissa Joaquim
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Richard Simon Machado
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Thais C Vilela
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Rafael M Bitencourt
- Laboratory of Behavioral Neuroscience, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Vanessa M Andrade
- Laboratório de Biologia Celular e Molecular, Universidade do Extremo Sul Catarinense, UNESC, Avenida Universitária, 1105, Criciúma, SC, Brazil
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Fabrícia Petronilho
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Talita Tuon
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
| | - Gislaine Tezza Rezin
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil.
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19
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Wilken MR, Lambert MNT, Christensen CB, Jeppesen PB. Effects of Anthocyanin-rich Berries on the Risk of Metabolic Syndrome: A Systematic Review and Meta-analysis. Rev Diabet Stud 2022; 18:42-57. [PMID: 35300756 PMCID: PMC9382680 DOI: 10.1900/rds.2022.18.42] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE: Metabolic syndrome (MetS) can lead to fatal complications, including cardiovascular disease. Emerging evidence suggests has emerged that increased fruit and vegetable intake and decreased intake of saturated fats, simple sugars, and processed foods can improve cardiovascular
health. Anthocyanins (color pigments) have anti-inflammatory and antioxidant capacities but are of low bioavailability. In this systematic review and metaanalysis, we investigate the possible beneficial effects of the intake of berries high in anthocyanins on MetS risk factors. We also investigate
the influences of high-density lipoprotein (HDL), lowdensity lipoprotein (LDL), triglycerides (TG), and total cholesterol (TC). METHODS: We identified 2,274 articles from PUBMED and EMBASE following a search input designed to include studies of interest of these, 21 met inclusion criteria.
RESULTS: The studies showed an overall reduction in low-density lipoprotein (p=0.04). Increases in HDL were found with cranberry and freeze-dried berry intake during a 4-6-week intervention. No statistically significant findings were detected for fasting glucose, Hb1Ac, insulin levels,
blood pressure, oxidized LDL (OX-LDL), BMI, and overall HDL. CONCLUSIONS: We conclude from this systematic review and meta-analysis that increased berry intake improves MetS key risk factors and reduces the risk of cardiovascular disease. Pronounced effects were apparent for concentrated
berry products, such as freeze-dried strawberries.
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Affiliation(s)
- Mikkel Roulund Wilken
- Department of Clinical Medicine. Aarhus University Hospital. Aarhus University. Palle Juul-Jensens. Boulevard 165. Aarhus N. Denmark
| | - Max Norman Tandrup Lambert
- Department of Clinical Medicine. Aarhus University Hospital. Aarhus University. Palle Juul-Jensens. Boulevard 165. Aarhus N. Denmark
| | - Christine Bodelund Christensen
- Department of Clinical Medicine. Aarhus University Hospital. Aarhus University. Palle Juul-Jensens. Boulevard 165. Aarhus N. Denmark
| | - Per Bendix Jeppesen
- Department of Clinical Medicine. Aarhus University Hospital. Aarhus University. Palle Juul-Jensens. Boulevard 165. Aarhus N. Denmark
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20
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Delaney KZ, Santosa S. Sex differences in regional adipose tissue depots pose different threats for the development of Type 2 diabetes in males and females. Obes Rev 2022; 23:e13393. [PMID: 34985183 DOI: 10.1111/obr.13393] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 01/08/2023]
Abstract
Type 2 diabetes mellitus (T2DM) affects males and females disproportionately. In midlife, more males have T2DM than females. The sex difference in T2DM prevalence is, in part, explained by differences in regional adipose tissue characteristics. With obesity, changes to regional adipokine and cytokine release increases the risk of T2DM in both males and females with males having greater levels of TNFα and females having greater levels of leptin, CRP, and adiponectin. Regional immune cell infiltration appears to be pathogenic in both sexes via different routes as males with obesity have greater VAT ATM and a decrease in the protective Treg cells, whereas females have greater SAT ATM and T cells. Lastly, the ability of female adipose tissue to expand all regions through hyperplasia, rather than hypertrophy, protects them against the development of large insulin-resistant adipocytes that dominate male adipose tissue. The objective of this review is to discuss how sex may affect regional differences in adipose tissue characteristics and how these differences may distinguish the development of T2DM in males and females. In doing so, we will show that the origins of T2DM development differ between males and females.
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Affiliation(s)
- Kerri Z Delaney
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Metabolism, Obesity and Nutrition Lab, PERFORM Centre, Concordia University, Montréal, Québec, Canada.,Centre de recherche - Axe maladies chroniques, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Hôpital du Sacré-Coeur de Montréal, Montréal, Québec, Canada
| | - Sylvia Santosa
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Metabolism, Obesity and Nutrition Lab, PERFORM Centre, Concordia University, Montréal, Québec, Canada.,Centre de recherche - Axe maladies chroniques, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Hôpital du Sacré-Coeur de Montréal, Montréal, Québec, Canada
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21
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Barroso WA, Serra MB, Abreu IC, Barbeiro HV, Fiamoncini J, de Alvarenga JFR, de Souza HP, de Lima TM. Banana green peels extract protects against nonalcoholic fatty liver disease in high-fat-fed mice through modulation of lipid metabolism and inflammation. Phytother Res 2022; 36:951-962. [PMID: 35018684 DOI: 10.1002/ptr.7366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/08/2021] [Accepted: 12/11/2021] [Indexed: 12/18/2022]
Abstract
We investigate the effect of the banana green peels extract (BPE) as a preventive treatment against NAFLD in high-fat diet fed mice. Mice received daily doses of 100 or 250 mg/kg of BPE for 12 weeks along with the high-fat diet. BPE reduced weight gain (p < .0001), adipose tissue hypertrophy (p < .0001), and improved glucose homeostasis (p < .0001). Plasma levels of glucose-dependent insulinotropic polypeptide, triglycerides, total cholesterol, LDL-cholesterol, non-esterified fatty acids, aspartate and alanine transaminase, leptin, and resistin were decreased in BPE treated mice (p < .05). BPE effects on lipid metabolism were associated with decreased gene expression of lipogenic enzymes and increased expression of enzymes related to fatty acid and cholesterol degradation (p < .05). Plasma and liver bile acid (BA) profiles were modulated by BPE, with positive correlations between specific BA and UCP-1, CPT-1 and PGC-1β expression in brown adipose tissue (p < .05). BPE reduced hepatic steatosis and inflammation, possibly due to reduced p65 NF-κB nuclear translocation (p < .05) and modulation of oxidative stress (p < .05). These data indicate that BPE is a source of phytochemical compounds with promising effects toward the prevention of metabolic disorders associated with obesity.
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Affiliation(s)
| | - Mariana Barreto Serra
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo-SP, Brazil
| | - Iracelle Carvalho Abreu
- Physiological Sciences Department, Laboratory of Research and Post-graduation in Pharmacology (LPPF), Federal University of Maranhão, São Luís, Brazil
| | - Hermes Vieira Barbeiro
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo-SP, Brazil
| | - Jarlei Fiamoncini
- Food Research Center (FoRC), Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo-SP, Brazil
| | - José Fernando Rinaldi de Alvarenga
- Food Research Center (FoRC), Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo-SP, Brazil
| | | | - Thais Martins de Lima
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo-SP, Brazil
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22
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Liu J, Ma T, Chen M, Ma Y, Li Y, Gao D, Ma Q, Wang X, Chen L, Zhang Y, Dong Y, Song Y, Ma J. Prevalence and associated factors of metabolic body size phenotype in children and adolescents: A national cross-sectional analysis in China. Front Endocrinol (Lausanne) 2022; 13:952825. [PMID: 36093090 PMCID: PMC9452664 DOI: 10.3389/fendo.2022.952825] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 05/25/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Metabolically healthy obesity (MHO) is a group of subjects with overweight/obesity who present a metabolically healthy profile; however, associated factors are complex and are far from completely understood. The aim of the current study was to estimate the prevalence of different metabolic body size phenotypes and investigate the associated factors in Chinese children and adolescents. METHODS A cross-sectional survey was conducted of 12,346 children and adolescents aged 7-18 years from seven provinces in China in 2013. Anthropometric, blood pressure, and biochemical measurements were obtained. A multi-component questionnaire covering demographic, neonatal, and lifestyle characteristics was administered. The classification of metabolic body size phenotype based on three definitions was compared. With metabolically healthy with normal weight (MHNW) as a reference group, logistic regression analyses were used to estimate the potential effects of associated risk factors, with adjustment for age, sex, single-child status, and residence area. RESULTS The prevalence of MHNW, MHO, metabolically unhealthy with normal weight (MUNW), and metabolically unhealthy overweight/obesity (MUO) phenotype was 68.6%, 2.0%, 26.4%, and 3.0%, respectively. There were 39.3% MHO and 60.7% MUO among obese participants and 72.2% MHNW and 27.8% MUNW among those with normal weight. Compared to cardiometabolic risk factor (CMRF) criteria and metabolic syndrome (MetS) component definition, the application of the 2018 consensus-based definition may identify more children with abnormal cardiovascular risks, independent of weight status. Compared to younger children, older-aged adolescents were positively associated with higher risks of MUNW (odds ratio (OR) = 1.38, 95% CI = 1.27-1.50) and MUO (OR = 1.29, 95% CI = 1.04-1.60), while factors positively associated with MHO were younger age, single-child status, urban residence, high birth weight, prolonged breastfeeding duration, parental overweight/obesity status, long screen time, and less physical activity. CONCLUSION There were still a high proportion of children and adolescents at high cardiometabolic risk in China. Our findings reinforce the need for cardiometabolic risk prevention in children and adolescents irrespective of their weight statuses, such as parental educational programs and healthy lifestyle interventions.
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Affiliation(s)
- Jieyu Liu
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Tao Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Manman Chen
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Ying Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Yanhui Li
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Di Gao
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Qi Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Xinxin Wang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, China
| | - Li Chen
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Yi Zhang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Yanhui Dong
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
- *Correspondence: Yanhui Dong, ; Yi Song,
| | - Yi Song
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
- *Correspondence: Yanhui Dong, ; Yi Song,
| | - Jun Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- National Health Commission Key Laboratory of Reproductive Health, Beijing, China
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23
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WANG G, ZHANG J, ZHANG K, ZHAO Q, ZHOU F, XU J, XUE W, ZHANG C, FU C. Possible action mechanisms of vitamin D supplementation in combating obesity and obesity-related issues of bone health: a mini review. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.114621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Guiqing WANG
- the Sixth Hospital affiliated to Guangzhou Medical University, China
| | - Jie ZHANG
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Kailong ZHANG
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Qingqing ZHAO
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Fang ZHOU
- National University of Singapore (Suzhou) Research Institude, China
| | - Jie XU
- National University of Singapore (Suzhou) Research Institude, China
| | - Wenshuang XUE
- National University of Singapore (Suzhou) Research Institude, China
| | - Chunye ZHANG
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Caili FU
- National University of Singapore (Suzhou) Research Institude, China
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24
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Ooi DSQ, Dorajoo R, Gurung RL, Dehghan R, Lim YY, Ho CWL, Tay V, Karuppiah V, Loke KY, Lim SC, Liu JJ, Sng AA, Lee YS. Association of leukocyte telomere length with obesity-related traits in Asian children with early-onset obesity. Pediatr Obes 2021; 16:e12771. [PMID: 33501739 DOI: 10.1111/ijpo.12771] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Leukocyte telomere length (LTL) is associated with obesity and obesity-related traits, and there are ethnic-specific determinants of LTL. OBJECTIVE To evaluate LTL associations with obesity and metabolic parameters in Asian children with early-onset obesity. METHODS Genomic DNA was extracted from peripheral blood leukocytes of a cohort of children with (N = 371) and without obesity (N = 23), and LTL was measured using quantitative PCR (qPCR). Blood plasma was used for metabolic phenotyping. Statistical analysis was performed using SPSS and STATA. RESULTS Children with obesity had shorter LTL (coefficient = -0.683, PAdj = 1.24 × 10-3 ) as compared to children who were lean. LTL was found to be associated with waist circumference (coefficient = -0.326, PAdj = 0.044) and skin-fold measures (coefficient between 0.267 and 0.301, PAdj between 4.27 × 10-4 and 7.06 × 10-7 ) in children with obesity. However, no significant associations were observed between LTL and metabolic parameters, and between LTL and inflammatory cytokines. LTL also did not significantly mediate the risk of non-alcoholic fatty liver disease (NAFLD) in children with obesity. CONCLUSIONS We showed for the first time that Asian children with severe obesity had shorter LTL, and the shortening of LTL was associated with other adiposity measures including waist circumference and skin-fold measurements.
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Affiliation(s)
- Delicia Shu Qin Ooi
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Paediatric Endocrinology, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
| | - Rajkumar Dorajoo
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore
| | - Resham L Gurung
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Roghayeh Dehghan
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore.,Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
| | - Yvonne Yijuan Lim
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Paediatric Endocrinology, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
| | - Cindy Wei Li Ho
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Paediatric Endocrinology, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
| | - Veronica Tay
- Youth Preventive Services Division, Health Promotion Board, Singapore, Singapore
| | - Vijaya Karuppiah
- Youth Preventive Services Division, Health Promotion Board, Singapore, Singapore
| | - Kah Yin Loke
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Paediatric Endocrinology, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
| | - Su Chi Lim
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore.,Diabetes Centre, Admiralty Medical Centre, Singapore, Singapore.,Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Jian-Jun Liu
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Andrew Anjian Sng
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Paediatric Endocrinology, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
| | - Yung Seng Lee
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Paediatric Endocrinology, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
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25
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Wang S, Zhang L, Wang D, Huang M, Zhao J, Malik V, Liu X, Sun L, Lin X, Chen Y. Gut Microbiota Composition is Associated with Responses to Peanut Intervention in Multiple Parameters Among Adults with Metabolic Syndrome Risk. Mol Nutr Food Res 2021; 65:e2001051. [PMID: 34327851 DOI: 10.1002/mnfr.202001051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 07/18/2021] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Peanuts are widely consumed as a meal ingredient and a snack, and are commonly considered as a healthy food based on their nutrient profile. Peanut consumption has been associated with a lower risk of metabolic syndrome (MetS) in epidemiological studies. This study aims to investigate whether consuming peanuts affects the gut microbiota in adults with risk of MetS and whether the intervention effect of peanuts is associated with gut microbiota composition. METHODS AND RESULTS This study analyzes the gut microbiota of subjects from a 12-week randomized clinical trial comparing consumption of either peanuts or isocaloric carbohydrate bars. It is observed that there is high inter-individual variability on multiple clinical and anthropometrical parameters in response to peanut consumption. Meanwhile, the gut microbiota composition is also highly person-specific and have minor changes when compared laterally or longitudinally. This study employs a machine-learning algorithm and establishes prediction models using the microbiome data and the responsiveness data of different parameters in subjects with peanut intervention. As a result, it is found that the improvement of MetS risk and numerous parameters, including diastolic blood pressure, body weight, waist circumference, and fasting blood glucose level can be predicted for responsiveness with high accuracy that has a value of area under curve over 0.70 by receiver operating characteristic analysis. CONCLUSION Together, the findings of this study suggest that individual gut microbiota configuration may modulate host metabolism and alter an individual's response to peanut intervention, thus highlighting the importance of personalized nutrition.
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Affiliation(s)
- Shuo Wang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Lingling Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Di Wang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Meiqin Huang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jingyu Zhao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Vasanti Malik
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, 02115, USA.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Xiaoran Liu
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, 02115, USA.,Department of Internal Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Liang Sun
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xu Lin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yan Chen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
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26
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Bourgeois C, Gorwood J, Olivo A, Le Pelletier L, Capeau J, Lambotte O, Béréziat V, Lagathu C. Contribution of Adipose Tissue to the Chronic Immune Activation and Inflammation Associated With HIV Infection and Its Treatment. Front Immunol 2021; 12:670566. [PMID: 34220817 PMCID: PMC8250865 DOI: 10.3389/fimmu.2021.670566] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/24/2021] [Indexed: 12/12/2022] Open
Abstract
White adipose tissue (AT) contributes significantly to inflammation – especially in the context of obesity. Several of AT’s intrinsic features favor its key role in local and systemic inflammation: (i) large distribution throughout the body, (ii) major endocrine activity, and (iii) presence of metabolic and immune cells in close proximity. In obesity, the concomitant pro-inflammatory signals produced by immune cells, adipocytes and adipose stem cells help to drive local inflammation in a vicious circle. Although the secretion of adipokines by AT is a prime contributor to systemic inflammation, the lipotoxicity associated with AT dysfunction might also be involved and could affect distant organs. In HIV-infected patients, the AT is targeted by both HIV infection and antiretroviral therapy (ART). During the primary phase of infection, the virus targets AT directly (by infecting AT CD4 T cells) and indirectly (via viral protein release, inflammatory signals, and gut disruption). The initiation of ART drastically changes the picture: ART reduces viral load, restores (at least partially) the CD4 T cell count, and dampens inflammatory processes on the whole-body level but also within the AT. However, ART induces AT dysfunction and metabolic side effects, which are highly dependent on the individual molecules and the combination used. First generation thymidine reverse transcriptase inhibitors predominantly target mitochondrial DNA and induce oxidative stress and adipocyte death. Protease inhibitors predominantly affect metabolic pathways (affecting adipogenesis and adipocyte homeostasis) resulting in insulin resistance. Recently marketed integrase strand transfer inhibitors induce both adipocyte adipogenesis, hypertrophy and fibrosis. It is challenging to distinguish between the respective effects of viral persistence, persistent immune defects and ART toxicity on the inflammatory profile present in ART-controlled HIV-infected patients. The host metabolic status, the size of the pre-established viral reservoir, the quality of the immune restoration, and the natural ageing with associated comorbidities may mitigate and/or reinforce the contribution of antiretrovirals (ARVs) toxicity to the development of low-grade inflammation in HIV-infected patients. Protecting AT functions appears highly relevant in ART-controlled HIV-infected patients. It requires lifestyle habits improvement in the absence of effective anti-inflammatory treatment. Besides, reducing ART toxicities remains a crucial therapeutic goal.
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Affiliation(s)
- Christine Bourgeois
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Jennifer Gorwood
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Anaelle Olivo
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Laura Le Pelletier
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Jacqueline Capeau
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Olivier Lambotte
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France.,AP-HP, Groupe Hospitalier Universitaire Paris Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin-Bicêtre, France
| | - Véronique Béréziat
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Claire Lagathu
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
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27
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Abstract
The epidemiology and the current burden of chronic liver disease are changing globally, with non-alcoholic fatty liver disease (NAFLD) becoming the most frequent cause of liver disease in close relationship with the global epidemics of obesity, type 2 diabetes and metabolic syndrome. The clinical phenotypes of NAFLD are very heterogeneous in relationship with multiple pathways involved in the disease progression. In the absence of a specific treatment for non-alcoholic steatohepatitis (NASH), it is important to understand the natural history of the disease, to identify and to optimize the control of factors that are involved in disease progression. In this paper we propose a critical analysis of factors that are involved in the progression of the liver damage and the occurrence of extra-hepatic complications (cardiovascular diseases, extra hepatic cancer) in patients with NAFLD. We also briefly discuss the impact of the heterogeneity of the clinical phenotype of NAFLD on the clinical practice globally and at the individual level.
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Affiliation(s)
- Raluca Pais
- Institut de Cardiométabolisme et Nutrition, Hôpital Pitié Salpetrière, Assistance Publique Hôpitaux de Paris, 75013 Paris, France;
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28
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The Prognostic Impact of Body Composition for Locally Advanced Breast Cancer Patients Who Received Neoadjuvant Chemotherapy. Cancers (Basel) 2021; 13:cancers13040608. [PMID: 33557032 PMCID: PMC7913702 DOI: 10.3390/cancers13040608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/19/2021] [Accepted: 01/29/2021] [Indexed: 01/06/2023] Open
Abstract
Simple Summary We aimed to determine the prognostic role of body composition in patients with breast cancer who received neoadjuvant chemotherapy. Previous studies suggested that body composition is a better indicator of breast cancer treatment outcome than body mass index. A comprehensive body composition analysis found that a low ratio of total visceral adipose tissue to subcutaneous adipose tissue was associated with shorter overall survival. This finding will lead to further investigation of the role of body composition in outcomes for patients with locally advanced breast cancer. Abstract Our previous study indicated that a high amount of visceral adipose tissue was associated with poor survival outcomes in patients with early breast cancer who received neoadjuvant chemotherapy. However, inconsistency was observed in the prognostic role of body composition in breast cancer treatment outcomes. In the present study, we aimed to validate our previous research by performing a comprehensive body composition analysis in patients with a standardized clinical background. We included 198 patients with stage III breast cancer who underwent neoadjuvant chemotherapy between January 2007 and June 2015. The impact of body composition on pathologic complete response and survival outcomes was determined. Body composition measurements had no significant effect on pathologic complete response. Survival analysis showed a low ratio of total visceral adipose tissue to subcutaneous adipose tissue (V/S ratio ≤ 34) was associated with shorter overall survival. A changepoint method determined that a V/S ratio cutoff of 34 maximized the difference in overall survival. Our study indicated the prognostic effect of body composition measurements in patients with locally advanced breast cancer compared to those with early breast cancer. Further investigation will be needed to clarify the biological mechanism underlying the association of V/S ratio with prognosis in locally advanced breast cancer.
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Marchand NE, Sparks JA, Tedeschi SK, Malspeis S, Costenbader KH, Karlson EW, Lu B. Abdominal Obesity in Comparison with General Obesity and Risk of Developing Rheumatoid Arthritis in Women. J Rheumatol 2021; 48:165-173. [PMID: 32669445 PMCID: PMC8006183 DOI: 10.3899/jrheum.200056] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Being overweight or obese increases rheumatoid arthritis (RA) risk among women, particularly among those diagnosed at a younger age. Abdominal obesity may contribute to systemic inflammation more than general obesity; thus, we investigated whether abdominal obesity, compared to general obesity, predicted RA risk in 2 prospective cohorts: the Nurses' Health Study (NHS) and NHS II. METHODS We followed 50,682 women (1986-2014) in NHS and 47,597 women (1993-2015) in NHS II, without RA at baseline. Waist circumference (WC), BMI, health outcomes, and covariate data were collected through biennial questionnaires. Incident RA cases and serologic status were identified by chart review. We examined the associations of WC and BMI with RA risk using time-varying Cox proportional hazards models. We repeated analyses restricted to age ≤ 55 years. RESULTS During 28 years of follow-up, we identified 844 incident RA cases (527 NHS, 317 NHS II). Women with WC > 88 cm (35 in) had increased RA risk (HR 1.22, 95% CI 1.06-1.41). A similar association was observed for seropositive RA, which was stronger among young and middle-aged women. Further adjustment for BMI attenuated the association to null. In contrast, BMI was associated with RA (HRBMI ≥ 30 vs < 25 1.33, 95% CI 1.05-1.68) and seropositive RA, even after adjusting for WC, and, as in WC analyses, this association was stronger among young and middle-aged women. CONCLUSION Abdominal obesity was associated with increased RA risk, particularly for seropositive RA, among young and middle-aged women; however, it did not independently contribute to RA risk beyond general obesity.
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Affiliation(s)
- Nathalie E Marchand
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Jeffrey A Sparks
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sara K Tedeschi
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Susan Malspeis
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Karen H Costenbader
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Elizabeth W Karlson
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Bing Lu
- N.E. Marchand, ScD, J.A. Sparks, MD, MMSc, S.K. Tedeschi, MD, MPH, S. Malspeis, K.H. Costenbader, MD, MPH, E.W. Karlson, MD, B. Lu, MD, DrPH, Division of Rheumatology, Inflammation and Immunity, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
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Defective immunosuppressive function of Treg cells in visceral adipose tissue in MIF deficient mice. Cytokine 2020; 138:155372. [PMID: 33246771 DOI: 10.1016/j.cyto.2020.155372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 11/24/2022]
Abstract
Obesity, a global health problem nowadays, is a state of low-grade chronic inflammation of adipose tissue (AT) associated with increased adipocyte growth and proliferation and immune cell polarization towards an inflammatory phenotype within the stromal vascular fraction (SVF). Pro-inflammatory cells in the AT produce mediators of inflammation (IL-1β, TNF, macrophage migration inhibitory factor - MIF), thereby surpassing the anti-inflammatory response mediated by IL-10 and TGF-β, cytokines produced by regulatory T (Treg) cells. In this study we demonstrate that the absence of the pro-inflammatory cytokine MIF led to obesity and inflammation in the visceral AT (VAT) in 6 months old MIF-/- mice. Besides the increment of pro-inflammatory AT macrophages and the enhanced production of TNF and IL-1β, VAT of MIF-/- mice contained increased numbers of Treg cells. In situ proliferation of Treg cells did not differ between MIF-/- and wild type mice, but Treg cells isolated from the VAT of MIF-deficient mice, and not from the cervical lymph nodes, exhibited lower expression and production of IL-10 and TGF-β. Additionally, SVF cells had significantly lower levels of STAT3 and IL-33, altogether indicating that VAT Treg cells in MIF-/- mice, albeit abundantly present, are not fully functional. These results indicate that MIF is a new regulator of VAT Treg cell function, necessary for their immunosuppressive activities.
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Liu W, Li D, Cao H, Li H, Wang Y. Expansion and inflammation of white adipose tissue - focusing on adipocyte progenitors. Biol Chem 2020; 402:123-132. [PMID: 33544474 DOI: 10.1515/hsz-2019-0451] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 10/01/2020] [Indexed: 12/22/2022]
Abstract
Adipose tissue is an important organ in our body, participating not only in energy metabolism but also immune regulation. It is broadly classified as white (WAT) and brown (BAT) adipose tissues. WAT is highly heterogeneous, composed of adipocytes, various immune, progenitor and stem cells, as well as the stromal vascular populations. The expansion and inflammation of WAT are hallmarks of obesity and play a causal role in the development of metabolic and cardiovascular diseases. The primary event triggering the inflammatory expansion of WAT remains unclear. The present review focuses on the role of adipocyte progenitors (APS), which give rise to specialized adipocytes, in obesity-associated WAT expansion, inflammation and fibrosis.
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Affiliation(s)
- Wenjing Liu
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Dahui Li
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Handi Cao
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Haoyun Li
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Yu Wang
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China
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Valenzuela PL, Carrera-Bastos P, Gálvez BG, Ruiz-Hurtado G, Ordovas JM, Ruilope LM, Lucia A. Lifestyle interventions for the prevention and treatment of hypertension. Nat Rev Cardiol 2020; 18:251-275. [PMID: 33037326 DOI: 10.1038/s41569-020-00437-9] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/24/2020] [Indexed: 02/07/2023]
Abstract
Hypertension affects approximately one third of the world's adult population and is a major cause of premature death despite considerable advances in pharmacological treatments. Growing evidence supports the use of lifestyle interventions for the prevention and adjuvant treatment of hypertension. In this Review, we provide a summary of the epidemiological research supporting the preventive and antihypertensive effects of major lifestyle interventions (regular physical exercise, body weight management and healthy dietary patterns), as well as other less traditional recommendations such as stress management and the promotion of adequate sleep patterns coupled with circadian entrainment. We also discuss the physiological mechanisms underlying the beneficial effects of these lifestyle interventions on hypertension, which include not only the prevention of traditional risk factors (such as obesity and insulin resistance) and improvements in vascular health through an improved redox and inflammatory status, but also reduced sympathetic overactivation and non-traditional mechanisms such as increased secretion of myokines.
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Affiliation(s)
| | - Pedro Carrera-Bastos
- Centre for Primary Health Care Research, Lund University/Region Skane, Skane University Hospital, Malmö, Sweden
| | - Beatriz G Gálvez
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Gema Ruiz-Hurtado
- Research Institute of the Hospital Universitario 12 de Octubre (imas12), Madrid, Spain.,CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - José M Ordovas
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA.,IMDEA Alimentacion, Madrid, Spain
| | - Luis M Ruilope
- Research Institute of the Hospital Universitario 12 de Octubre (imas12), Madrid, Spain.,CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain. .,Research Institute of the Hospital Universitario 12 de Octubre (imas12), Madrid, Spain.
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Dewhurst-Trigg R, Wadley AJ, Woods RM, Sherar LB, Bishop NC, Hulston CJ, Markey O. Short-term High-fat Overfeeding Does Not Induce NF-κB Inflammatory Signaling in Subcutaneous White Adipose Tissue. J Clin Endocrinol Metab 2020; 105:5813979. [PMID: 32232380 DOI: 10.1210/clinem/dgaa158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/27/2020] [Indexed: 12/22/2022]
Abstract
CONTEXT It is unclear how white adipose tissue (WAT) inflammatory signaling proteins respond during the early stages of overnutrition. OBJECTIVE To investigate the effect of short-term, high-fat overfeeding on fasting abdominal subcutaneous WAT total content and phosphorylation of proteins involved in nuclear factor-κB (NF-κB) inflammatory signaling, systemic metabolic and inflammatory biomarkers. DESIGN Individuals consumed a high-fat (65% total energy from total fat), high-energy (50% above estimated energy requirements) diet for 7 days. RESULTS Fifteen participants (aged 27 ± 1 years; body mass index 24.4 ± 0.6 kg/m2) completed the study. Body mass increased following high-fat overfeeding (+1.2 ± 0.2 kg; P < 0.0001). However, total content and phosphorylation of proteins involved in NF-κB inflammatory signaling were unchanged following the intervention. Fasting serum glucose (+0.2 ± 0.0 mmol/L), total cholesterol (+0.4 ± 0.1 mmol/L), low-density lipoprotein cholesterol (+0.3 ± 0.1 mmol/L), high-density lipoprotein cholesterol (+0.2 ± 0.0 mmol/L), and lipopolysaccharide-binding protein (LBP; +4.7 ± 2.1 µg/mL) increased, whereas triacylglycerol concentrations (-0.2 ± 0.1 mmol/L) decreased following overfeeding (all P < 0.05). Systemic biomarkers (insulin, soluble cluster of differentiation 14 [CD14], C-reactive protein, interleukin-6, tumor necrosis factor-α and monocyte chemoattractant protein-1) and the proportion and concentration of circulating CD14+ monocytes were unaffected by overfeeding. CONCLUSION Acute lipid oversupply did not impact on total content or phosphorylation of proteins involved in WAT NF-κB inflammatory signaling, despite modest weight gain and metabolic alterations. Systemic LBP, which is implicated in the progression of low-grade inflammation during the development of obesity, increased in response to a 7-day high-fat overfeeding period.
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Affiliation(s)
- Rebecca Dewhurst-Trigg
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Alex J Wadley
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Rachel M Woods
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Lauren B Sherar
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Nicolette C Bishop
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Carl J Hulston
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Oonagh Markey
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
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Li Y, Liu X, Li G, Zhang P. Effect of liraglutide on epicardial adipose tissue thickness with echocardiography in patients with obese type 2 diabetes mellitus. Int J Diabetes Dev Ctries 2020. [DOI: 10.1007/s13410-020-00820-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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Moh MC, Low S, Ng TP, Wang J, Ang SF, Tan C, Ang K, Tavintharan S, Sum CF, Kwan PY, Lee SBM, Tang WE, Lim SC. Association of traditional and novel measures of central obesity with cognitive performance in older multi-ethnic Asians with type 2 diabetes. Clin Obes 2020; 10:e12352. [PMID: 32020768 DOI: 10.1111/cob.12352] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 12/10/2019] [Accepted: 12/15/2019] [Indexed: 01/04/2023]
Abstract
Literature evaluating the relationship between central obesity and cognitive deficits in type 2 diabetes (T2DM) remains scarce. This cross-sectional analysis explored the association of novel and traditional central obesity measures with cognitive performance in older (aged ≥60 years) non-demented multi-ethnic Asians with T2DM, including a stratified analysis by body mass index (BMI). Cognitive function was assessed using the Repeatable Battery for the Assessment of Neuropsychological Status. Central obesity measures including visceral fat area (VFA), waist circumference, waist:hip ratio, waist:height ratio, abdominal volume index, body roundness index and conicity index were measured and/or computed. In our cohort (N = 677; mean age = 67 ± 5 years, 51.7% men), VFA emerged as an associate of overall cognitive performance after covariate adjustment and Bonferroni correction (β = -.10, 95% CI = -0.18, -0.03), outperforming the other adiposity indices. Specifically, VFA was inversely associated with delayed memory and language scores. Additionally, compared with normal-weight individuals, excess visceral obesity (VFA ≥100 cm2 ) was independently associated with lower cognitive scores to a greater extent in normal BMI (<23 kg/m2 ) adults than in those with high BMI (≥23 kg/m2 ). Assessment and management of visceral adiposity may help to prevent cognitive decline in older people with T2DM, and reduce the global burden of dementia in ageing populations.
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Affiliation(s)
- Mei Chung Moh
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Serena Low
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
- Diabetes Centre, Admiralty Medical Centre, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Tze Pin Ng
- Gerontology Research Programme, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jiexun Wang
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Su Fen Ang
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Clara Tan
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Keven Ang
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Subramaniam Tavintharan
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
- Diabetes Centre, Admiralty Medical Centre, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Chee Fang Sum
- Diabetes Centre, Admiralty Medical Centre, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Pek Yee Kwan
- National Healthcare Group Polyclinics, Singapore, Singapore
| | | | - Wern Ee Tang
- National Healthcare Group Polyclinics, Singapore, Singapore
| | - Su Chi Lim
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
- Diabetes Centre, Admiralty Medical Centre, Khoo Teck Puat Hospital, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University Hospital, Singapore, Singapore
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Mousapour P, Barzin M, Valizadeh M, Mahdavi M, Azizi F, Hosseinpanah F. Predictive performance of lipid accumulation product and visceral adiposity index for renal function decline in non-diabetic adults, an 8.6-year follow-up. Clin Exp Nephrol 2019; 24:225-234. [PMID: 31734819 DOI: 10.1007/s10157-019-01813-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/28/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND Lipid accumulation product (LAP) and visceral adiposity index (VAI) are surrogates for visceral adiposity dysfunction. Our aim was to evaluate potential association of these two indices with the incidence of renal function decline. METHODS We included 6693 non-diabetic adults age ≥ 18 years, with estimated glomerular filtration rate (eGFR) ≥ 60 ml/min/1.73 m2, from the Tehran Lipid and Glucose Study 2002-2005 survey. Natural logarithmic transformation (Ln) was applied for LAP and VAI measures. The incidence of renal function decline, defined as eGFR < 60 ml/min/1.73 m2, was evaluated for each gender, across tertiles of Ln LAP, Ln VAI, body mass index (BMI), waist circumference (WC), waist to height ratio (WHtR) and waist to hip ratio (WHR), using Cox-proportional hazard models. RESULTS Over a median 8.6 years of follow-up, 1670 new cases of renal function decline were identified (incidence rate 3.2%). After multivariable adjustment, the hazard ratios (HRs) with 95% CI across second and third tertiles of Ln LAP were 1.14 (0.86-1.50) and 1.33 (1.00-1.78) in men (P trend = 0.132); and 1.16 (0.90-1.50) and 1.24 (0.96-1.61) in women (P trend = 0.263), respectively. Multivariable adjusted HRs across second and third tertiles of Ln VAI were 1.40 (1.08-1.83) and 1.35 (1.02-1.78) in men (P trend = 0.031); and 0.93 (0.75-1.15) and 1.15 (0.93-1.41) in women (P trend = 0.072), respectively. HRs across tertiles of BMI, WC, WHtR and WHR were not significant for renal function decline among both genders in any adjustment models. CONCLUSION Among the adiposity indices assessed in this study, VAI seems to be an independent predictor of renal function decline only in males.
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Affiliation(s)
- Pouria Mousapour
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Barzin
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Valizadeh
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Mahdavi
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farhad Hosseinpanah
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Claro F, Morari J, Moreira LR, Sarian LOZ, Velloso LA. Breast Lipofilling Does Not Pose Evidence of Chronic Inflammation in Rats. Aesthet Surg J 2019; 39:NP202-NP212. [PMID: 30265289 DOI: 10.1093/asj/sjy257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Laboratory reports on adipose tissue suggest that fat grafting to the breast may pose an oncologic risk. One possible reason for this is the theoretic chronic inflammation due to adipokynes released by grafted white adipose tissue (WAT). OBJECTIVES The aim of this study was to analyze inflammatory activity in lipofilled breast through the use of proinflammatory markers. METHODS Fifty-four paired-breasts of female rats were divided into 4 groups: control, sham, and breasts grafted with either autologous subcutaneous (SC) WAT or autologous omentum (OM). The WAT was prepared through centrifugation, and the grafting was performed with the use of 0.9-mm blunt-tip cannula. The rats were killed 8 weeks postoperatively, and their breasts were harvested for immunohistochemical staining for CD68-expressing macrophages, gene expression (real-time PCR) for monocyte chemoattractant protein 1 (MCP-1), F4/80, Cox-2, and IL-6. RESULTS The weights of the rats that underwent a procedure differed from those of the unmanipulated control group (P < 0.01). The macrophage counts of CD68 differed only between breasts lipofilled with OM and control (P < 0.01). MCP-1, F4/80, and Cox-2 were similarly expressed among the groups (P = 0.422, P = 0.143, and P = 0.209, respectively). The expression of IL-6 differed between breast samples grafted with SC and OM WAT (P = 0.015), but not between samples of control and OM (P = 0.752), and control and SC (P = 0.056). CONCLUSIONS No inflammation activity was identified in the microenvironment of lipofilled breasts, indicating that chronic inflammation does not seem to be triggered by the breast lipofilling procedure.
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Affiliation(s)
- Francisco Claro
- Department of Gynecology and Obstetrics, Laboratory of Specialized Pathology and Laboratory of Cell Signaling, Obesity and Comorbidities, School of Medical Sciences, State University of Campinas, Campinas-SP, Brazil
| | - Joseane Morari
- Department of Gynecology and Obstetrics, Laboratory of Specialized Pathology and Laboratory of Cell Signaling, Obesity and Comorbidities, School of Medical Sciences, State University of Campinas, Campinas-SP, Brazil
| | - Luciana R Moreira
- Department of Gynecology and Obstetrics, Laboratory of Specialized Pathology and Laboratory of Cell Signaling, Obesity and Comorbidities, School of Medical Sciences, State University of Campinas, Campinas-SP, Brazil
| | - Luis O Z Sarian
- Department of Gynecology and Obstetrics, Laboratory of Specialized Pathology and Laboratory of Cell Signaling, Obesity and Comorbidities, School of Medical Sciences, State University of Campinas, Campinas-SP, Brazil
| | - Licio A Velloso
- Department of Gynecology and Obstetrics, Laboratory of Specialized Pathology and Laboratory of Cell Signaling, Obesity and Comorbidities, School of Medical Sciences, State University of Campinas, Campinas-SP, Brazil
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Remor JM, Lopes WA, Locateli JC, Oliveira RP, Simões CF, Barrero CAL, Nardo Jr N. Prevalence of metabolically healthy obese phenotype and associated factors in South American overweight adolescents: A cross-sectional study. Nutrition 2019; 60:19-24. [DOI: 10.1016/j.nut.2018.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/16/2018] [Accepted: 08/22/2018] [Indexed: 12/29/2022]
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Garofallo SB, Portal VL, Markoski MM, Dias LD, de Quadrosa AS, Marcadenti A. Correlations between Traditional and Nontraditional Indicators of Adiposity, Inflammation, and Monocyte Subtypes in Patients with Stable Coronary Artery Disease. J Obes 2019; 2019:3139278. [PMID: 31354986 PMCID: PMC6637687 DOI: 10.1155/2019/3139278] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/30/2019] [Accepted: 06/10/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Recruitment of monocytes and low-grade inflammation process are both involved in obesity and in atherosclerosis. Thus, the aim of this study was to evaluate the correlation among indicators of adiposity, monocyte subtypes, and inflammatory markers in patients with stable coronary artery disease (CAD). METHODS This was a cross-sectional study including 97 patients with stable CAD aged >40 years. Traditional anthropometric indicators of adiposity (body mass index (BMI); waist, hip, and neck circumferences; and waist-hip ratio) and nontraditional anthropometric indicators of adiposity (lipid accumulation product index (LAP), visceral adiposity index (VAI), and deep-abdominal-adipose-tissue index (DAAT)) were determined. Immunoprecipitation, turbidimetry, coagulometric method, and CBA were used for the evaluation of inflammatory markers (hs-CRP, IL-2, IL-4, IL-6, IL-10, and INF-γ). Monocyte subtypes were identified by flow cytometry and defined as CD14++ CD16- (Mon1), CD14++ CD16+ (Mon2), and CD14+ CD16++ (Mon3). Pearson's correlation coefficient and adjusted partial correlation were calculated. RESULTS Monocyte subtypes were correlated with inflammation regardless of nutritional status according to BMI. In overweight individuals, LAP was correlated with IL-4 and fibrinogen (P < 0.01 and P < 0.05, respectively) and VAI with IL-4 (P < 0.05). In obese patients, the BMI, waist, neck, and hip circumferences, and DAAT were correlated with IL-6 (P < 0.05), regardless of age and sex. The hip circumference was correlated positively with Mon1 (r = 0.40, P = 0.007) and negatively with Mon3 (r = -0.35, P = 0.02) in obese subjects. CONCLUSION Monocyte subtypes are correlated with inflammation in patients with stable CAD independently of BMI, whereas traditional and nontraditional indicators of adiposity are correlated differently with inflammatory markers and monocytes, according to the nutritional status.
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Affiliation(s)
- Silvia Bueno Garofallo
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, Rio Grande do Sul 90040-371, Brazil
| | - Vera Lucia Portal
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, Rio Grande do Sul 90040-371, Brazil
| | - Melissa Medeiros Markoski
- Graduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Porto Alegre, Rio Grande do Sul 90050-170, Brazil
| | - Lucinara Dadda Dias
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, Rio Grande do Sul 90040-371, Brazil
| | - Alexandre Schaan de Quadrosa
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, Rio Grande do Sul 90040-371, Brazil
| | - Aline Marcadenti
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, Rio Grande do Sul 90040-371, Brazil
- Graduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Porto Alegre, Rio Grande do Sul 90050-170, Brazil
- Institute of Research,Coracao Hospital (HCor), Abílio Soares Street, 250, São Paulo, São Paulo 04004-05, Brazil
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Davidson FE, Matsha TE, Erasmus RT, Kengne AP, Goedecke JH. The discriminatory power of visceral adipose tissue area vs anthropometric measures as a diagnostic marker for metabolic syndrome in South African women. Diabetol Metab Syndr 2019; 11:93. [PMID: 31719847 PMCID: PMC6839066 DOI: 10.1186/s13098-019-0483-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/15/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND A number of studies have shown central adiposity, in particular visceral adipose tissue (VAT) accumulation to be a hallmark of metabolic syndrome (MetS). In clinical practice, waist circumference (WC) is used as a proxy for VAT. AIM To compare the ability of dual energy x-ray absorptiometry (DXA)-derived VAT area and anthropometric measures of adiposity for diagnosing MetS in a sample of high risk South African women. METHODS MetS was quantified using the Joint Interim Statement (JIS) criteria. Fasting glucose, insulin and lipid profile were measured in 204 post-menopausal women. Anthropometry measures included body mass index (BMI), WC, waist-to-hip ratio (WHR), waist-to-height ratio (WHtR) and a body shape index (ABSI). The area under the curve (AUC) was used to assess their performance in detecting any two components of MetS (excluding WC). Optimal WC and VAT area cut-points were derived to compare their performance for diagnosing MetS and to compare to internationally recognised cut-points. RESULTS The highest AUC for the prediction of MetS was recorded for VAT, followed by WHtR and WC (AUC, 0.767, 0.747 and 0.738 respectively), but these did not differ significantly (all p ≥ 0.192). In contrast, VAT was significantly better than BMI (p = 0.028), hip (p = 0.0004) and ABSI (p < 0.0001). The optimal WC (94.4 cm) and VAT area (174 cm2 based on the Youden's index method and 175.50 cm2 based on the CTL approach) cut-points performed similarly in detecting MetS. CONCLUSION DXA-derived VAT and WC had the same overall performance in discriminating the presence of any 2 MetS components in high risk South African women. These findings support the current recommendations of using WC rather than VAT for MetS risk screening, as it is cheap, accessible and easy to measure.
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Affiliation(s)
- Florence E. Davidson
- Department of Medical Imaging and Therapeutic Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Symphony Way, Bellville, Cape Town, 7530 South Africa
| | - Tandi E. Matsha
- Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, South African Medical Research Council/Cape Peninsula University of Technology/Cardiometabolic Health Research Unit, Bellville, Cape Town, 7530 South Africa
| | - Rajiv T. Erasmus
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS), University of Stellenbosch, Cape Town, South Africa
| | - Andre Pascal Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Francie van Zijl Drive, Parow Valley, Cape Town, 7505 South Africa
| | - Julia H. Goedecke
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Francie van Zijl Drive, Parow Valley, Cape Town, 7505 South Africa
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Cytometric analysis of adipose tissue reveals increments of adipocyte progenitor cells after weight loss induced by bariatric surgery. Sci Rep 2018; 8:15203. [PMID: 30315279 PMCID: PMC6185966 DOI: 10.1038/s41598-018-33488-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/27/2018] [Indexed: 12/14/2022] Open
Abstract
Obesity-related comorbidities are, in large part, originated from the dysfunction of adipose tissue. Most of them revert after the normalization of body mass. Adipose tissue is essentially occupied by adipocytes. However, different populations of immunological cells and adipocyte precursor cells (AdPCs) are the main cellular components of tissue. During obesity, body fat depots acquire a low-level chronic inflammation and adipocytes increase in number and volume. Conversely, weight loss improves the inflammatory phenotype of adipose tissue immune cells and reduces the volume of adipocytes. Nevertheless, very little is known about the evolution of the human AdPCs reservoir. We have developed a flow cytometry-based methodology to simultaneously quantify the main cell populations of adipose tissue. Starting from this technical approach, we have studied human adipose tissue samples (visceral and subcutaneous) obtained at two different physiological situations: at morbid obesity and after bariatric surgery-induced weight loss. We report a considerable increase of the AdPCs reservoir after losing weight and several changes in the immune cells populations of adipose tissue (mast cells increase, neutrophils decrease and macrophages switch phenotype). No changes were observed for T-lymphocytes, which are discussed in the context of recent findings.
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Abdalla BA, Li Z, Ouyang H, Jebessa E, Sun T, Yu JA, Cai B, Chen B, Nie Q, Zhang X. A Novel Dnmt3a1 Transcript Inhibits Adipogenesis. Front Physiol 2018; 9:1270. [PMID: 30333755 PMCID: PMC6176318 DOI: 10.3389/fphys.2018.01270] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 08/21/2018] [Indexed: 12/17/2022] Open
Abstract
DNA (cytosine-5)-methyltransferase 3a (Dnmt3a) is an enzyme that catalyzes the transfer of methyl groups to specific CpG forms in DNA. In mammals, two variant transcripts of Dnmt3a have been successfully identified. To the best of our knowledge, no Dnmt3a transcripts in an avian have been successfully identified. This study was performed to detect different transcripts of Dnmt3a in chickens and to examine whether a novel Dnmt3a transcript named Dnmt3a1 may regulate adipogenesis. In addition to cloning, sequencing, transcript detection, and expression studies, a novel Dnmt3a1 transcript overexpression and knockdown were conducted to explore the potential role of Dnmt3a1 in preadipocyte proliferation and the early stage of adipocyte differentiation. In chicken abdominal fat tissue, we detected a novel Dnmt3a1 transcript that differs from Dnmt3a by lacking 23 amino acids at the exon-1/exon-2 border. Dnmt3a1 mRNA was ubiquitously expressed in a variety of tissues or cells and highly expressed in chicken adipose tissue/cells. The expression of Dnmt3a1 was regulated under different physiological conditions including aging, fasting, and high-fat diet. In addition, overexpression of Dnmt3a1 significantly decreased preadipocyte proliferation and induced cell-cycle arrest while its inhibition increased cell proliferation and S-phase cells. Furthermore, the overexpression of Dnmt3a1 significantly upregulated the mRNA level of cell-cycle-related genes, such as CDKN1A, CDKN1B, CCNB3, CCND2, CCNG2, CDKN2B, and CDK9, or the protein level of CDKN1A, CDKN1B, and CCNG2. Conversely, the knockdown of Dnmt3a1 by siRNA had the opposite effects. Moreover, during early adipocyte differentiation, the overexpression of Dnmt3a1 significantly decreased the mRNA and the protein levels of PPAR-γ, C/EBP-α, ADIPOR1, and STAT3, and the mRNA levels of FAS, LEPR, LPL, PRKAB2, and ATGL. In contrast, their expression was significantly increased after the knockdown of Dnmt3a1. Taken together, we identified a novel transcript of Dnmt3a, and it played a potential role in adipogenesis.
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Affiliation(s)
- Bahareldin A Abdalla
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Zhenhui Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Hongjia Ouyang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Endashaw Jebessa
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Tianhao Sun
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Jia-Ao Yu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Bolin Cai
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Biao Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, the Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
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Lassek WD, Gaulin SJC. Do the Low WHRs and BMIs Judged Most Attractive Indicate Better Health? EVOLUTIONARY PSYCHOLOGY 2018; 16:1474704918803998. [PMID: 30296849 PMCID: PMC10367492 DOI: 10.1177/1474704918803998] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 09/10/2018] [Indexed: 01/01/2023] Open
Abstract
It is widely claimed that in well-nourished populations, very low female waist-hip ratios (WHRs) together with low body mass indices (BMIs) are judged attractive by men because these features reliably indicate superior health and fertility. However, studies show that mortality rates are higher in women with low BMIs than in women with average BMIs and are inversely related to BMI in subsistence populations. Measures of current health in women of reproductive age have not been similarly studied. We analyze large U.S. samples of reproductive-age women and show that controlling for other factors known to affect health, those with low BMIs (<20), WHRs, or waist/stature ratios did not have better health than those with values in the middle range, and there was no relationship between subsequent health outcomes and BMI in early adulthood. Lower self-reported BMIs were linked to poorer health and an increased risk of infection. However, based on recent U.S. natality data, primiparas with lower BMIs had a lower risk of an operative delivery and of gestational hypertension. Beyond these two parity-restricted effects, relevant studies and new tests fail to support the view that women with the very low BMIs and WHRs consistently judged attractive are generally healthier than women with average values; significant correlations were consistently in the opposite direction.
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Affiliation(s)
- William D. Lassek
- Department of Anthropology, University of California at Santa Barbara, Santa Barbara, CA, USA
| | - Steven J. C. Gaulin
- Department of Anthropology, University of California at Santa Barbara, Santa Barbara, CA, USA
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Molina J, Joaquim A, Bonamin LV, Martins MDFM, Kirsten TB, Cardoso CV, Bernardi MM, Bondan EF. Reduced astrocytic expression of GFAP in the offspring of female rats that received hypercaloric diet. Nutr Neurosci 2018; 23:411-421. [PMID: 30126346 DOI: 10.1080/1028415x.2018.1512783] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Introduction: Obesity promotes hypothalamic inflammation and local morphological changes in astrocytes, including the increased expression of the astrocytic biomarker glial fibrillary acidic protein (GFAP), which is seen as a sign of neuroinflammation.Objective: This study aimed to observe the astrocytic expression of GFAP in different brain areas from female rats that received a hypercaloric (HD) or a normocaloric (ND) diet during puberty (F0 generation) as well as in their male pups (F1 generation).Methods: Female rats received highly palatable HD (Ensure®) or ND from postnatal day (PND) 23-65. On PND90-95, some were euthanized for the immunohistochemical study and some were mated to obtain the F1 generation. Male pups were immunochallenged on PND50 with lipopolysaccharide (LPS, 100 μg/kg) or 0.9% saline solution (1 mL/kg) intraperitoneal injection. Body weight (BW) and retroperitoneal fat weight (RFW) were recorded on PND95 for F0 generation and on PND50 for F1 generation. GFAP expression for both generations was assessed by morphometry in the parietal/frontal cortex, corpus callosum, nucleus accumbens, arcuate/periventricular nuclei of hypothalamus, pons, molecular/granular layers of cerebellum.Results: Female rats fed with HD presented a significant increase in the GFAP expression in all evaluated areas as well as in the RFW. Male rats born from mothers that received HD showed decreased GFAP expression, BW and RFW when treated with LPS in relation to those from mothers fed with ND.Discussion: HD induced astrogliosis in several brain areas in females from F0 generation and an adaptive phenotypic change of decreased GFAP expression in males from F1 generation after LPS challenge.
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Affiliation(s)
- Jéssica Molina
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil
| | - Andréia Joaquim
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil
| | - Leoni Vilano Bonamin
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil
| | - Maria de Fátima Monteiro Martins
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil.,Department of Veterinary Medicine, University Cruzeiro do Sul, Av. Dr. Ussiel Cirilo, 225, São Paulo 08060-070, Brazil
| | - Thiago Berti Kirsten
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil
| | - Carolina Vieira Cardoso
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil
| | - Maria Martha Bernardi
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil
| | - Eduardo Fernandes Bondan
- Graduate Program in Environmental and Experimental Pathology, University Paulista (UNIP), Dr. Bacelar, 1212, São Paulo 04026-002, Brazil.,Department of Veterinary Medicine, University Cruzeiro do Sul, Av. Dr. Ussiel Cirilo, 225, São Paulo 08060-070, Brazil
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Annatto-extracted tocotrienols improve glucose homeostasis and bone properties in high-fat diet-induced type 2 diabetic mice by decreasing the inflammatory response. Sci Rep 2018; 8:11377. [PMID: 30054493 PMCID: PMC6063954 DOI: 10.1038/s41598-018-29063-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 07/01/2018] [Indexed: 12/11/2022] Open
Abstract
Diabetes is a risk factor for osteoporosis. Annatto-extracted tocotrienols (TT) have proven benefits in preserving bone matrix. Here, we evaluated the effects of dietary TT on glucose homeostasis, bone properties, and liver pro-inflammatory mRNA expression in high-fat diet (HFD)-induced type 2 diabetic (T2DM) mice. 58 male C57BL/6 J mice were divided into 5 groups: low-fat diet (LFD), HFD, HFD + 400 mgTT/kg diet (T400), HFD + 1600 mgTT/kg diet (T1600), and HFD + 200 mg metformin/kg (Met) for 14 weeks. Relative to the HFD group, both TT-supplemented groups (1) improved glucose homeostasis by lowering the area under the curve for both glucose tolerance and insulin tolerance tests, (2) increased serum procollagen I intact N-terminal propeptide (bone formation) level, trabecular bone volume/total volume, trabecular number, connectivity density, and cortical thickness, (3) decreased collagen type 1 cross-linked C-telopeptide (bone resorption) levels, trabecular separation, and structure model index, and (4) suppressed liver mRNA levels of inflammation markers including IL-2, IL-23, IFN-γ, MCP-1, TNF-α, ITGAX and F4/80. There were no differences in glucose homeostasis and liver mRNA expression among T400, T1600, and Met. The order of osteo-protective effects was LFD ≥T1600 ≥T400 = Met >HFD. Collectively, these data suggest that TT exerts osteo-protective effects in T2DM mice by regulating glucose homeostasis and suppressing inflammation.
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Abdalla BA, Chen J, Nie Q, Zhang X. Genomic Insights Into the Multiple Factors Controlling Abdominal Fat Deposition in a Chicken Model. Front Genet 2018; 9:262. [PMID: 30073018 PMCID: PMC6060281 DOI: 10.3389/fgene.2018.00262] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/28/2018] [Indexed: 12/12/2022] Open
Abstract
Genetic selection for an increased growth rate in meat-type chickens has been accompanied by excessive fat accumulation particularly in abdominal cavity. These progressed to indirect and often unhealthy effects on meat quality properties and increased feed cost. Advances in genomics technology over recent years have led to the surprising discoveries that the genome is more complex than previously thought. Studies have identified multiple-genetic factors associated with abdominal fat deposition. Meanwhile, the obesity epidemic has focused attention on adipose tissue and the development of adipocytes. The aim of this review is to summarize the current understanding of genetic/epigenetic factors associated with abdominal fat deposition, or as it relates to the proliferation and differentiation of preadipocytes in chicken. The results discussed here have been identified by different genomic approaches, such as QTL-based studies, the candidate gene approach, epistatic interaction, copy number variation, single-nucleotide polymorphism screening, selection signature analysis, genome-wide association studies, RNA sequencing, and bisulfite sequencing. The studies mentioned in this review have described multiple-genetic factors involved in an abdominal fat deposition. Therefore, it is inevitable to further study the multiple-genetic factors in-depth to develop novel molecular markers or potential targets, which will provide promising applications for reducing abdominal fat deposition in meat-type chicken.
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Affiliation(s)
- Bahareldin A. Abdalla
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- National-Local Joint Engineering Research Center for Livestock Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Jie Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- National-Local Joint Engineering Research Center for Livestock Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- National-Local Joint Engineering Research Center for Livestock Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- National-Local Joint Engineering Research Center for Livestock Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, The Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
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Badimon L, Cubedo J. Adipose tissue depots and inflammation: effects on plasticity and resident mesenchymal stem cell function. Cardiovasc Res 2018; 113:1064-1073. [PMID: 28498891 DOI: 10.1093/cvr/cvx096] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 05/10/2017] [Indexed: 02/07/2023] Open
Abstract
Adipose tissue (AT) is a highly heterogeneous organ. Beside the heterogeneity associated to different tissue types (white, brown, and 'brite') and its location-related heterogeneity (subcutaneous, visceral, epicardial, and perivascular, etc.), AT composition, structure, and functionality are highly dependent on individual-associated factors. As such, the pro-inflammatory state associated to the presence of obesity and other cardiovascular risk factors (CVRFs) directly affects AT metabolism. Furthermore, the adipose-derived stem cells (ASCs) that reside in the stromal vascular fraction of AT, besides being responsible for most of the plasticity attributed to AT, is an additional source of heterogeneity. Thus, ASCs directly contribute to AT homeostasis, cell renewal, and spontaneous repair. These ASCs share many properties with the bone-marrow mesenchymal stem cells (i.e. potential to differentiate towards multiple tissue lineages, and angiogenic, antiapoptotic, and immunomodulatory properties). Moreover, ASCs show clear advantages in terms of accessibility and quantity of available sample, their easy in vitro expansion, and the possibility of having an autologous source. All these properties point out towards a potential use of ASCs in regenerative medicine. However, the presence of obesity and other CVRFs induces a pro-inflammatory state that directly impacts ASCs proliferation and differentiation capacities affecting their regenerative abilities. The focus of this review is to summarize how inflammation affects the different AT depots and the mechanisms by which these changes further enhance the obesity-associated metabolic disturbances. Furthermore, we highlight the impact of obesity-induced inflammation on ASCs properties and how those effects impair their plasticity.
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Affiliation(s)
- Lina Badimon
- Cardiovascular Science Institute - ICCC, IIB-Sant Pau, CiberCV, Hospital de Sant Pau, c/Sant Antoni M Claret 167, Barcelona 08025, Spain.,Cardiovascular Research Chair UAB, Barcelona, Spain
| | - Judit Cubedo
- Cardiovascular Science Institute - ICCC, IIB-Sant Pau, CiberCV, Hospital de Sant Pau, c/Sant Antoni MaClaret 167, Barcelona 08025, Spain
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Repeated Binge-Like Alcohol Intoxication: Depot-Specific Adipose Tissue Immuno-Metabolic Dysregulation. Shock 2018; 48:243-250. [PMID: 28125531 DOI: 10.1097/shk.0000000000000843] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Repeated binge-like alcohol intoxication (RBAI) induces whole-body insulin resistance, which is predicted to increase the risk for metabolic syndrome and type 2 diabetes. Previously, we showed that acute alcohol intoxication increases mesenteric lymphatic permeability, perilymphatic adipose tissue (PLAT) inflammation, and circulating lipopolysaccharide levels in rats. We hypothesize that mesenteric lymphatic hyperpermeability, adipose tissue inflammation and associated dysregulated adipokine expression, and insulin signaling are central mechanisms underlying whole-body metabolic dysregulation resulting from RBAI. To test this hypothesis, male Sprague-Dawley rats surgically fitted with an intragastric catheter received a bolus of 2.5 g/kg/day of alcohol (12.5% alcohol w/v) or isocaloric dextrose in Vanilla Ensure (116 kcal/kg/day) for 3 days. Mesenteric lymphatic permeability, mesenteric (MFAT = PLAT) and subcutaneous (SFAT) adipose tissue inflammatory milieu, circulating adipokines, and markers of insulin responsiveness (pAKT and PTP1B protein expression) were determined following the last alcohol/dextrose administration. RBAI resulted in increased lymphatic permeability, MFAT-specific expression of inflammatory cytokines and markers of inflammatory cells (macrophages, dendritic, and T cells), decreased circulating adiponectin and visfatin levels, and MFAT-specific attenuation of insulin-stimulated protein kinase B phosphorylation (Ser) compared with dextrose-treated control animals. These results suggest that RBAI-induced mesenteric lymphatic hyperpermeability promotes inflammatory milieu, decreased insulin-sensitizing adipokines, and impaired insulin signaling in MFAT, which we propose may be an early event preceding systemic metabolic dysregulation. We speculate that RBAI-induced increase in gut-derived toxins, promoting lymphatic leak, and MFAT inflammatory milieu are mechanisms deserving further investigation to elucidate lymphatic-MFAT crosstalk events that precede and predispose for alcohol-induced insulin resistance.
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Abstract
PURPOSE OF REVIEW To review recent advances in the epidemiology, pathophysiology, clinical features, and treatment of obesity-related kidney disease. RECENT FINDINGS Studies have confirmed that obesity is associated with increased risk of developing chronic kidney disease (CKD). This risk extends to those who are metabolically healthy, indicating that obesity per se contributes to CKD independent of the metabolic syndrome. Recent developments in the pathophysiology of obesity-related kidney disease indicate that chronic inflammation and abnormal lipid metabolism contribute to kidney cell injury. Children with severe obesity have increased prevalence of early kidney abnormalities, including albuminuria, decreased kidney function, and elevated biomarkers of early kidney injury. For these patients, bariatric surgery has emerged as a treatment option to consider. Longitudinal studies in children and adults have demonstrated that in patients with obesity-related kidney disease, kidney function and albuminuria improve following bariatric surgery. SUMMARY The injurious renal effects of obesity are present in childhood, although the natural history and clinical spectrum of obesity-related kidney disease in children are not known. In obese children with early kidney disease, identification of kidney injury, implementation of preventive strategies, and prompt treatment are essential to improving clinical outcomes.
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Schoettl T, Fischer IP, Ussar S. Heterogeneity of adipose tissue in development and metabolic function. ACTA ACUST UNITED AC 2018. [PMID: 29514879 DOI: 10.1242/jeb.162958] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Adipose tissue is a central metabolic organ. Unlike other organs, adipose tissue is compartmentalized into individual depots and distributed throughout the body. These different adipose depots show major functional differences and risk associations for developing metabolic syndrome. Recent advances in lineage tracing demonstrate that individual adipose depots are composed of adipocytes that are derived from distinct precursor populations, giving rise to different populations of energy-storing white adipocytes. Moreover, distinct lineages of energy-dissipating brown and beige adipocytes exist in discrete depots or within white adipose tissue depots. In this Review, we discuss developmental and functional heterogeneity, as well as sexual dimorphism, between and within individual adipose tissue depots. We highlight current data relating to the differences between subcutaneous and visceral white adipose tissue in the development of metabolic dysfunction, with special emphasis on adipose tissue expansion and remodeling of the extracellular matrix. Moreover, we provide a detailed overview of adipose tissue development as well as the consensus and controversies relating to adult adipocyte precursor populations.
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Affiliation(s)
- Theresa Schoettl
- JRG Adipocytes and Metabolism, Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Center Munich, 85748 Garching, Germany.,German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Ingrid P Fischer
- JRG Adipocytes and Metabolism, Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Center Munich, 85748 Garching, Germany.,German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany.,Division of Metabolic Diseases, Department of Medicine, Technische Universität München, 80333 Munich, Germany
| | - Siegfried Ussar
- JRG Adipocytes and Metabolism, Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Center Munich, 85748 Garching, Germany .,German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
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