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Di Vincenzo A, Granzotto M, Trevellin E, Purificati C, Vecchiato M, Foletto M, Pesavento M, Vettor R, Rossato M. Bariatric surgery modulates plasma levels of antibodies against angiotensin II type 1 and endothelin 1 type A receptor in severe obesity. J Endocrinol Invest 2024:10.1007/s40618-024-02412-4. [PMID: 38900373 DOI: 10.1007/s40618-024-02412-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
PURPOSE The contribution of endothelial-targeted autoantibodies against the angiotensin II type 1 receptor (anti-AT1R) and the anti-endothelin 1 type A receptor (anti-ETAR1) has been proposed in the development of cardiovascular diseases. However, no data have been reported yet in obesity. In this observational study we evaluated the relationship between anthropometric and metabolic parameters and anti-AT1R and anti-ETAR1 concentrations in a cohort of patients with severe obesity and associated comorbidities undergoing bariatric surgery. METHODS Clinical evaluation and metabolic assessment were performed in 36 subjects referring to our Center for the Study and Integrated Treatment of Obesity at the University Hospital of Padova. Circulating inflammatory adipocytokines and the endothelial dysfunction marker asymmetric dimethylarginine (ADMA) were evaluated; plasma levels of anti-AT1R and anti-ETAR1 were also determined. 10 normal-weight subjects were considered as a control group. 29 patients out of 36 were re-evaluated after surgery. RESULTS With respect to normal-weight controls patients showed significantly higher plasma levels of anti-AT1R (28 ± 20.4 vs 13.5 ± 2.8 U/mL, p < 0.005) and ADMA (0.8 ± 0.1 vs 0.54 ± 0.08 uM/L, p < 0.0001) but not anti-ETAR1 (14.2 ± 1.3 vs 13.3 ± 2 U/mL, p = 0.1). Anti-AT1R concentration showed an increasing trend with the worsening of glycemic status, while the presence of arterial hypertension among the patients did not affect autoantibodies levels. One year after surgery, a significant improvement in body weight and metabolic and inflammatory parameters was observed, along with a significant reduction of anti-AT1R (28.1 ± 20.4 U/mL vs 22.6 ± 16 U/mL, p < 0.05) and anti-ETAR1 (14.2 ± 1.3 U/L vs 13 ± 1.6 U/L, p < 0.01). CONCLUSIONS Subjects with obesity present higher plasma levels of anti-AT1R which are more related to glycemic profile than blood pressure levels, and are reduced by bariatric surgery. Considering the detrimental effects of these autoantibodies on vascular health, they should be assessed as potential biomarkers in obesity and metabolic diseases.
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Affiliation(s)
- A Di Vincenzo
- Internal Medicine 3, Department of Medicine, University-Hospital of Padova, Padua, Italy.
- Endocrine-Metabolic Laboratory, Department of Medicine, University-Hospital of Padova, Padua, Italy.
| | - M Granzotto
- Endocrine-Metabolic Laboratory, Department of Medicine, University-Hospital of Padova, Padua, Italy
| | - E Trevellin
- Endocrine-Metabolic Laboratory, Department of Medicine, University-Hospital of Padova, Padua, Italy
| | - C Purificati
- Internal Medicine 3, Department of Medicine, University-Hospital of Padova, Padua, Italy
| | - M Vecchiato
- Sports and Exercise Medicine Division, Department of Medicine, University-Hospital of Padova, Padua, Italy
| | - M Foletto
- Week Surgery Unit, Department of Surgical, Oncological and Gastroenterological Sciences, University-Hospital of Padova, Padua, Italy
| | - M Pesavento
- Internal Medicine 3, Department of Medicine, University-Hospital of Padova, Padua, Italy
| | - R Vettor
- Internal Medicine 3, Department of Medicine, University-Hospital of Padova, Padua, Italy
- Endocrine-Metabolic Laboratory, Department of Medicine, University-Hospital of Padova, Padua, Italy
| | - M Rossato
- Internal Medicine 3, Department of Medicine, University-Hospital of Padova, Padua, Italy
- Endocrine-Metabolic Laboratory, Department of Medicine, University-Hospital of Padova, Padua, Italy
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He X, Zhu Z, Zang J, Wang Z, Liao P, Wang W, Shi Y, Fu C, Cui Y. Percent body fat, but not body mass index, is associated with cardiometabolic risk factors in children and adolescents. Chronic Dis Transl Med 2023. [DOI: 10.1002/cdt3.54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Xin He
- Laboratory of Functional Medicine, Division of Chronic Non‐communicable Diseases and Injury Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Zhenni Zhu
- Department of Nutrition Hygiene, Division of Health Risk Factor Monitoring and Control Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Jiajie Zang
- Department of Nutrition Hygiene, Division of Health Risk Factor Monitoring and Control Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Zhengyuan Wang
- Department of Nutrition Hygiene, Division of Health Risk Factor Monitoring and Control Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Ping Liao
- Laboratory of Functional Medicine, Division of Chronic Non‐communicable Diseases and Injury Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Wenjing Wang
- Laboratory of Functional Medicine, Division of Chronic Non‐communicable Diseases and Injury Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Yan Shi
- Laboratory of Functional Medicine, Division of Chronic Non‐communicable Diseases and Injury Shanghai Municipal Center for Disease Control and Prevention Shanghai China
| | - Chen Fu
- Laboratory of Functional Medicine, Division of Chronic Non‐communicable Diseases and Injury Shanghai Municipal Center for Disease Control and Prevention Shanghai China
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Li Y, Liu J, Zhou B, Li X, Wu Z, Meng H, Wang G. Reducing the 10-year risk of ischemic cardiovascular disease to receive early cardiovascular benefits from bariatric surgery for obesity in China. Front Cardiovasc Med 2022; 9:978682. [PMID: 36304549 PMCID: PMC9592844 DOI: 10.3389/fcvm.2022.978682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 09/23/2022] [Indexed: 11/22/2022] Open
Abstract
Background Cardiovascular risk due to obesity can be improved greatly by bariatric surgery. However, there is no research involving appropriate model for evaluating cardiovascular disease risk reduction in bariatric surgery for obesity in China. We selected the ischemic cardiovascular disease (ICVD) risk score that accurately predict cardiovascular risk in Chinese adults to evaluate the 10-year risk of ICVD and estimated early cardiovascular benefits of bariatric surgery in obese Chinese patients through its reduction. Methods From 2017 to 2019 we followed up 107 patients 6 months after surgery and measured the ICVD 10-year risk and other cardiovascular factors before and after surgery. Results There were significant reductions in the ICVD total score (p < 0.001) and ICVD 10-year risk (%) (p < 0.001) 6 months post-operation compared with baseline. Furthermore, we found significant reductions in body mass index (BMI), body adiposity index (BAI), low-density lipoprotein (LDL), small dense-low-density lipoprotein (sd-LDL) and triglycerides (TG) 6 months after surgery compared with pre-operation (all p < 0.05). The decrease in ICVD total score was correlated with excess BMI loss (%EBMIL), reduced BAI, reduced LDL, reduced sd-LDL and reduced TG respectively (all p < 0.05) at 6 months post-operation. Moreover, there were significant reductions in the ICVD total score in the male subgroup [3 (3, 5) vs. 2.5 (2, 4), p < 0.001] and female subgroup [3 (2, 4) vs. 2 (1, 3), p < 0.001] 6 months post-operation compared with baseline. At last there were also significant reductions in the ICVD total score in the diabetic subgroup [5 (4, 6) vs. 4 (3, 5), p < 0.001] and non-diabetic subgroup [2 (2,3) vs. 2 (1, 2), p < 0.001] 6 months post-operation compared with baseline. Conclusions Bariatric surgery could provide early cardiovascular benefits for patients with obesity in China by reducing the 10-year risk of ICVD. Both men and women with obesity achieved cardiovascular benefits according to bariatric surgery, so did diabetic and non-diabetic patients.
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Affiliation(s)
- Yinhui Li
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jia Liu
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Biao Zhou
- Department of General Surgery and Obesity, Metabolic Disease Center, China-Japan Friendship Hospital, Beijing, China
| | - Xiaohui Li
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhenyu Wu
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hua Meng
- Department of General Surgery and Obesity, Metabolic Disease Center, China-Japan Friendship Hospital, Beijing, China,*Correspondence: Hua Meng
| | - Guang Wang
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China,Guang Wang
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Laveriano-Santos EP, Arancibia-Riveros C, Tresserra-Rimbau A, Castro-Barquero S, Ruiz-León AM, Estruch R, Casas R, Bodega P, de Miguel M, de Cos-Gandoy A, Martínez-Gómez J, Rodríguez C, Santos-Beneit G, Fernández-Alvira JM, Fernández-Jiménez R, Lamuela-Raventós RM. Flavonoid Intake From Cocoa-Based Products and Adiposity Parameters in Adolescents in Spain. Front Nutr 2022; 9:931171. [PMID: 35873437 PMCID: PMC9298534 DOI: 10.3389/fnut.2022.931171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
Background Cocoa-based products are a good source of flavonoids, which may have beneficial effects on metabolic health. Objective The aim of this study is to assess the relationship between flavonoids from cocoa-based products and adiposity parameters in adolescents. Methods A cross-sectional study was conducted involving 944 adolescents aged 11-14 years enrolled in the SI! Program for Secondary Schools trial in Spain with available baseline data from food frequency questionnaires and anthropometric measurements [weight, height, waist circumference (WC), and fat mass percentage (% FM) by bioimpedance analysis]. Fat mass index (FMI) and waist-to-height ratio (WHtR) were obtained by dividing fat mass by height and WC by height, respectively. Body mass index (BMI), WC, and FMI for age and gender z-score were calculated. Overweight/obesity was defined as BMI ≥ 85th percentile and excess adiposity as %FM or FMI ≥ 75th percentile. WC ≥ 90th percentile and WHtR with a 0.5 threshold were considered as criteria of abdominal obesity. Multilevel mixed-effect regressions were used to evaluate the association between flavonoids from cocoa-based products and adiposity parameters. Municipalities and schools were considered random effects. Results Participants with a higher flavonoid intake from cocoa-based products had lower WC z-score [B = -0.04, 95% CI (-0.07; -0.01), P-for trend = 0.045] and WHtR [B = -0.01, 95% CI (-0.02; -0.01), P- for trend < 0.001]. They also had lower probability of having abdominal obesity [OR 0.66, 95% CI (0.52; 0.85), P- for trend = 0.001]. Inverse associations were observed between flavonoids from cocoa powder and BMI z-score [B = -0.08, 95% CI (-0.12; -0.05), P < 0.001], WC z-score [B = -0.06, 95% CI (-0.11; -0.02), P = 0.003], WHtR [B = -0.01, 95% CI (-0.01; -0.00), P < 0.001], %FM [B = -1.11, 95% CI (-1.48; -0.75), P < 0.001], and FMI z-score [B = -0.18, 95% CI (-0.20; -0.17), P < 0.001]. Regarding dark chocolate, an inverse association only with WC z-score [B = -0.06, 95% CI (-0.08; -0.05), P < 0.001] was found. However, no association was observed between flavonoids from milk chocolate intake and anthropometric parameters. Conclusions A higher intake of flavonoids from cocoa-based products was associated with lower adiposity parameters and a lower probability of presenting abdominal obesity.
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Affiliation(s)
- Emily P Laveriano-Santos
- Department of Nutrition, Food Science and Gastronomy, School of Pharmacy and Food Sciences, XIA, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, Barcelona, Spain
| | - Camila Arancibia-Riveros
- Department of Nutrition, Food Science and Gastronomy, School of Pharmacy and Food Sciences, XIA, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, Barcelona, Spain
| | - Anna Tresserra-Rimbau
- Department of Nutrition, Food Science and Gastronomy, School of Pharmacy and Food Sciences, XIA, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, Barcelona, Spain.,Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Sara Castro-Barquero
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Internal Medicine, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Ana María Ruiz-León
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Internal Medicine, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.,Mediterranean Diet Foundation, Barcelona, Spain
| | - Ramón Estruch
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Internal Medicine, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Rosa Casas
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Internal Medicine, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Patricia Bodega
- Foundation for Science, Health and Education (SHE), Barcelona, Spain.,Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.), Madrid, Spain
| | - Mercedes de Miguel
- Foundation for Science, Health and Education (SHE), Barcelona, Spain.,Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.), Madrid, Spain
| | - Amaya de Cos-Gandoy
- Foundation for Science, Health and Education (SHE), Barcelona, Spain.,Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.), Madrid, Spain
| | - Jesús Martínez-Gómez
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.), Madrid, Spain
| | - Carla Rodríguez
- Foundation for Science, Health and Education (SHE), Barcelona, Spain
| | - Gloria Santos-Beneit
- Foundation for Science, Health and Education (SHE), Barcelona, Spain.,The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | | | - Rodrigo Fernández-Jiménez
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.), Madrid, Spain.,CIBER de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Department of Cardiology, Hospital Universitario Clínico San Carlos, Madrid, Spain
| | - Rosa M Lamuela-Raventós
- Department of Nutrition, Food Science and Gastronomy, School of Pharmacy and Food Sciences, XIA, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, Barcelona, Spain.,Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Kajikawa M, Higashi Y. Obesity and Endothelial Function. Biomedicines 2022; 10:biomedicines10071745. [PMID: 35885049 PMCID: PMC9313026 DOI: 10.3390/biomedicines10071745] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/16/2022] [Accepted: 07/16/2022] [Indexed: 02/08/2023] Open
Abstract
Obesity is a major public health problem and is related to increasing rates of cardiovascular morbidity and mortality. Over 1.9 billion adults are overweight or obese worldwide and the prevalence of obesity is increasing. Obesity influences endothelial function through obesity-related complications such as hypertension, dyslipidemia, diabetes, metabolic syndrome, and obstructive sleep apnea syndrome. The excess fat accumulation in obesity causes adipocyte dysfunction and induces oxidative stress, insulin resistance, and inflammation leading to endothelial dysfunction. Several anthropometric indices and imaging modalities that are used to evaluate obesity have demonstrated an association between obesity and endothelial function. In the past few decades, there has been great focus on the mechanisms underlying endothelial dysfunction caused by obesity for the prevention and treatment of cardiovascular events. This review focuses on pathophysiological mechanisms of obesity-induced endothelial dysfunction and therapeutic targets of obesity.
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Affiliation(s)
- Masato Kajikawa
- Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan;
| | - Yukihito Higashi
- Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan;
- Department of Regenerative Medicine, Division of Radiation Medical Science, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
- Correspondence: ; Tel.: +81-82-257-5831
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Markova A, Boyanov M, Bakalov D, Tsakova A. Body Composition Indices and Cardiovascular Risk in Type 2 Diabetes. CV Biomarkers are not Related to Body Composition. Open Med (Wars) 2020; 15:309-316. [PMID: 32337369 PMCID: PMC7175638 DOI: 10.1515/med-2020-0043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/01/2020] [Indexed: 01/08/2023] Open
Abstract
Background This study aims to explore the correlations of body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR), waist-to-hip ratio (WHR) and body composition with levels of asymmetric dimethylarginine (ADMA), endothelin 1(ET-1), N-terminal brain natriuretic pro-peptide (NT-proBNP) and calculated cardiovascular risks. Methods 102 women and 67 men with type 2 diabetes participated. Serum levels of NT-proBNP were measured by electro-hemi-luminescence while ELISA were used for ADMA and ET-1. Cardiovascular risks were calculated using the Framingham Risk Score (FRS), the UKPDS 2.0 and the ADVANCE risk engines. Statistical analysis was performed on an IBM SPSS 19.0. Results The BMI outperformed all other indices of obesity (WC, WHtR, WHR), as well as body composition parameters (body fat%, fat mass, fat free mass and total body water) in relation to the estimated risks for coronary heart disease and stroke, based on different calculators. The correlations of the obesity indices with the serum cardiovascular biomarkers were not significant except for BMI and fat mass versus ET-1, and for fat free mass and total body water versus ADMA. Conclusions The WC, WHR, WHtR, BF%, FM and FFM apparently do not add significant information related to the levels of cardiovascular biomarkers or the calculated CV-risks.
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Affiliation(s)
- Aleksandra Markova
- Department Internal Medicine, Medical University Sofia, Sofia, Bulgaria.,Clinic of Endocrinology and Metabolism, University Hospital Alexandrovska, 1 Sv. Georgi Sofiyski str., Sofia 1431, Sofia Bulgaria
| | - Mihail Boyanov
- Clinic of Endocrinology and Metabolism, University Hospital Alexandrovska, 1 Sv. Georgi Sofiyski str., Sofia 1431, Sofia Bulgaria.,Department Internal Medicine, Medical University Sofia, Sofia, Bulgaria
| | - Deniz Bakalov
- Department Internal Medicine, Medical University Sofia, Sofia, Bulgaria.,Clinic of Endocrinology and Metabolism, University Hospital Alexandrovska, 1 Sv. Georgi Sofiyski str., Sofia 1431, Sofia Bulgaria
| | - Adelina Tsakova
- Central Clinical Laboratory, University Hospital Alexandrovska, Sofia, Bulgaria.,Department Clinical Laboratory and Clinical Immunology, Medical University Sofia, Sofia, Bulgaria
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Snack cost and percentage of body fat in Chinese children and adolescents: a longitudinal study. Eur J Nutr 2018; 58:2079-2086. [PMID: 29987575 DOI: 10.1007/s00394-018-1769-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 06/28/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE Only a few studies examined the relationship between snack cost and change in the percentage of body fat in children. We thus conducted a longitudinal study to investigate whether high snack cost is associated with fast increase in the percentage of body fat in Chinese children. METHODS The study included 2368 children (1126 girls and 1242 boys, aged 6-14 years). Percentage of body fat was repeatedly assessed by bioelectrical impedance analysis in 2014 (baseline), 2015 and 2016. Snack cost in 2014 was estimated by self-report associated with purchasing snacks at school and classified into low, moderate, and high group. Association between snack cost and repeated percentage of body fat was analyzed with linear mixed models, adjusting for demographic factors, diet, physical activity, and parental BMI and education. RESULTS High snack cost was significantly associated with a fast increase in the percentage of body fat over time (p trend = 0.04). Adjusted difference in annual increase rate in percentage of body fat between the high and low snack cost group was 0.31% [95% confident interval (CI) 0.04%, 0.58%], after adjusting for potential confounders. The impacts of snack cost on change in the percentage of body fat were more pronounced in boys, younger participants and those with higher BMI z-score at the baseline, relative to their counterparts (p interaction < 0.001 for all). CONCLUSIONS High snack cost was associated with more gain of body fat in Chinese school-aged children.
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Botelho-Santos GA, Couto NF, Aparecida-de Almeida S, Duarte-Rocha-da Silva CC, Fernandes-Filho J, Fernandes-da Silva S. Comparação e Concordância da gordura corporal em crianças através de três métodos duplamente indiretos. REVISTA DE LA FACULTAD DE MEDICINA 2017. [DOI: 10.15446/revfacmed.v65n4.60315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Chronic aerobic exercise associated to dietary modification improve endothelial function and eNOS expression in high fat fed hamsters. PLoS One 2014; 9:e102554. [PMID: 25036223 PMCID: PMC4103850 DOI: 10.1371/journal.pone.0102554] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 06/19/2014] [Indexed: 02/06/2023] Open
Abstract
Obesity is epidemic in the western world and central adipose tissue deposition points to increased cardiovascular morbidity and mortality, independently of any association between obesity and other cardiovascular risk factors. Physical exercise has been used as non-pharmacological treatment to significantly reverse/attenuate obesity comorbidities. In this study we have investigated effects of exercise and/or dietary modification on microcirculatory function, body composition, serum glucose, iNOS and eNOS expression on 120 male hamsters treated for 12 weeks with high fat chow (HF, n = 30) starting on the 21st day of birth. From week 12 to 20, animals were randomly separated in HF (no treatment change), return to standard chow (HFSC, n = 30), high fat chow associated to an aerobic exercise training program (AET) (HFEX, n = 30) and return to standard chow+AET (HFSCEX, n = 30). Microvascular reactivity in response to acetylcholine and sodium nitroprusside and macromolecular permeability increase induced by 30 minutes ischemia followed by reperfusion were assessed on the cheek pouch preparation. Total body fat and aorta eNOS and iNOS expression by immunoblotting assay were evaluated on the experimental day. Compared to HFSC and HFSCEX groups, HF and HFEX ones presented increased visceral fat [(mean±SEM) (HF)4.9±1.5 g and (HFEX)4.7±0.9 g vs. (HFSC)*3.0±0.7 g and (HFSCEX)*1.9±0.4 g/100 g BW]; impaired endothelial-dependent vasodilatation [Ach 10(-8) M (HF)87.9±2.7%; (HFSC)*116.7±5.9%; (HFEX)*109.1±4.6%; (HFSCEX)*105±2.8%; Ach10(-6) M (HF)95.3±3.1%; (HFSC)*126±6.2%; (HFEX)*122.5±2.8%; (HFSCEX)*118.1±4.3% and Ach10(-4) M (HF)109.5±4.8%; (HFSC)*149.6±6.6%; (HFEX)*143.5±5.4% and (HFSCEX)*139.4±5.2%], macromolecular permeability increase after ischemia/reperfusion [(HF)40.5±4.2; (HFSC)*19.0±1.6; (HFEX)*18.6±2.1 and (HFSCEX)* 21.5±3.7 leaks/cm2), decreased eNOS expression, increased leptin and glycaemic levels. Endothelial-independent microvascular reactivity was similar between groups, suggesting that only endothelial damage had occurred. Our results indicate that an aerobic routine and/or dietary modification may cause significant improvements to high fat fed animals, diminishing visceral depots, increasing eNOS expression and reducing microcirculatory dysfunction.
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