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Walowski CO, Herpich C, Enderle J, Braun W, Both M, Hasler M, Müller MJ, Norman K, Bosy-Westphal A. Analysis of the adiponectin paradox in healthy older people. J Cachexia Sarcopenia Muscle 2023; 14:270-278. [PMID: 36401062 PMCID: PMC9891976 DOI: 10.1002/jcsm.13127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/04/2022] [Accepted: 10/25/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND It remains unknown why adiponectin levels are associated with poor physical functioning, skeletal muscle mass and increased mortality in older populations. METHODS In 190 healthy adults (59-86 years, BMI 17-37 kg/m2 , 56.8% female), whole body skeletal muscle mass (normalized by height, SMI, kg/m2 ), muscle and liver fat were determined by magnetic resonance imaging. Bone mineral content (BMC) and density (BMD) were assessed by dual X-ray absorptiometry (n = 135). Levels of insulin-like growth factor 1 (IGF-1), insulin, inflammation markers, leptin and fibroblast growth factor 21 were measured as potential determinants of the relationship between adiponectin and body composition. RESULTS Higher adiponectin levels were associated with a lower SMI (r = -0.23, P < 0.01), BMC (r = -0.17, P < 0.05) and liver fat (r = -0.20, P < 0.05) in the total population and with higher muscle fat in women (r = 0.27, P < 0.01). By contrast, IGF-1 showed positive correlations with SMI (r = 0.33), BMD (r = 0.37) and BMC (r = 0.33) (all P < 0.01) and a negative correlation with muscle fat (r = -0.17, P < 0.05). IGF-1 was negatively associated with age (r = -0.21, P < 0.01) and with adiponectin (r = -0.15, P < 0.05). Stepwise regression analyses revealed that IGF-1, insulin and leptin explained 18% of the variance in SMI, and IGF-1, leptin and age explained 16% of the variance in BMC, whereas adiponectin did not contribute to these models. CONCLUSIONS Associations between higher adiponectin levels and lower muscle or bone mass in healthy older adults may be explained by a decrease in IGF-1 with increasing adiponectin levels.
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Affiliation(s)
- Carina O Walowski
- Institute for Human Nutrition and Food Science, Christian-Albrechts-University, Kiel, Germany
| | - Catrin Herpich
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,Department of Geriatrics and Medical Gerontology, Charité Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Department of Nutrition and Gerontology, German Institute of Human Nutrition, Potsdam-Rehbrücke, Nuthetal, Germany
| | - Janna Enderle
- Institute for Human Nutrition and Food Science, Christian-Albrechts-University, Kiel, Germany
| | - Wiebke Braun
- Institute for Human Nutrition and Food Science, Christian-Albrechts-University, Kiel, Germany
| | - Marcus Both
- Department of Radiology and Neuroradiology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Mario Hasler
- Applied Statistics, Faculty of Agricultural and Nutritional Sciences, Christian-Albrechts-University, Kiel, Germany
| | - Manfred J Müller
- Institute for Human Nutrition and Food Science, Christian-Albrechts-University, Kiel, Germany
| | - Kristina Norman
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,Department of Geriatrics and Medical Gerontology, Charité Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Department of Nutrition and Gerontology, German Institute of Human Nutrition, Potsdam-Rehbrücke, Nuthetal, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Anja Bosy-Westphal
- Institute for Human Nutrition and Food Science, Christian-Albrechts-University, Kiel, Germany
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2
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Liu J, Lai F, Hou Y, Zheng R. Leptin signaling and leptin resistance. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:363-384. [PMID: 37724323 PMCID: PMC10388810 DOI: 10.1515/mr-2022-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/12/2022] [Indexed: 09/20/2023]
Abstract
With the prevalence of obesity and associated comorbidities, studies aimed at revealing mechanisms that regulate energy homeostasis have gained increasing interest. In 1994, the cloning of leptin was a milestone in metabolic research. As an adipocytokine, leptin governs food intake and energy homeostasis through leptin receptors (LepR) in the brain. The failure of increased leptin levels to suppress feeding and elevate energy expenditure is referred to as leptin resistance, which encompasses complex pathophysiological processes. Within the brain, LepR-expressing neurons are distributed in hypothalamus and other brain areas, and each population of the LepR-expressing neurons may mediate particular aspects of leptin effects. In LepR-expressing neurons, the binding of leptin to LepR initiates multiple signaling cascades including janus kinase (JAK)-signal transducers and activators of transcription (STAT) phosphatidylinositol 3-kinase (PI3K)-protein kinase B (AKT), extracellular regulated protein kinase (ERK), and AMP-activated protein kinase (AMPK) signaling, etc., mediating leptin actions. These findings place leptin at the intersection of metabolic and neuroendocrine regulations, and render leptin a key target for treating obesity and associated comorbidities. This review highlights the main discoveries that shaped the field of leptin for better understanding of the mechanism governing metabolic homeostasis, and guides the development of safe and effective interventions to treat obesity and associated diseases.
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Affiliation(s)
- Jiarui Liu
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, China
| | - Futing Lai
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, China
| | - Yujia Hou
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, China
| | - Ruimao Zheng
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, China
- Neuroscience Research Institute, Peking University, Beijing, China
- Key Laboratory for Neuroscience of Ministry of Education, Peking University, Beijing, China
- Key Laboratory for Neuroscience of National Health Commission, Peking University, Beijing 100191, China
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3
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Wang D, Fang R, Han H, Zhang J, Chen K, Fu X, He Q, Yang Y. Association between visceral adiposity index and risk of prediabetes: A meta-analysis of observational studies. J Diabetes Investig 2022; 13:543-551. [PMID: 34592063 PMCID: PMC8902389 DOI: 10.1111/jdi.13685] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/17/2021] [Accepted: 09/18/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Epidemiological studies suggested that the association between the visceral adiposity index (VAI) and the risk of prediabetes is inconsistent. Whether VAI is a useful predictor of prediabetes remains unclear. Up until April 2021, there had been no systematic review on this topic. In this meta-analysis, the available observational epidemiological evidence was synthesized to identify the association between VAI and prediabetes risk. METHODS PubMed, EMBASE, and Cochrane databases in any language were searched systematically from the earliest available online indexing year to April 2021 for relevant observational studies published on the association between VAI and the risk of prediabetes. A random effects model was used to combine quantitatively the odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Ten relevant studies (2 cohort study, 2 case-control studies, and 6 cross-sectional studies) involving 112,603 participants were identified. Compared with the highest VAI, the lowest level of VAI was associated with an increased risk of prediabetes. The pooled OR of VAI for prediabetes was 1.68 (95% CI: 1.44-1.96), with significant heterogeneity across the included studies (P = 0.000, I2 = 91.4%). Exclusion of any single study did not materially alter the combined risk estimate. CONCLUSIONS Integrated epidemiological evidence supports the hypothesis that VAI is a lipid combined anthropometric index and may be a risk factor for prediabetes. VAI may be related to a high risk of prediabetes. However, it should be noted that the included studies have a publication bias and there was significant heterogeneity between our pooled estimate.
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Affiliation(s)
- Dan Wang
- Hangzhou Normal UniversityHangzhouChina
| | - Rui Fang
- Hunan University of Chinese MedicineChangshaChina
| | | | - Jidong Zhang
- Hunan University of Chinese MedicineChangshaChina
| | - Kaifei Chen
- Zhejiang Chinese Medical UniversityHangzhouChina
| | - Xiaoqing Fu
- Zhejiang Chinese Medical UniversityHangzhouChina
| | - Qinghu He
- Hunan University of MedicineHuaihuaChina
| | - Yong Yang
- Hangzhou Hospital of Traditional Chinese MedicineHangzhouChina
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4
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de Sousa ART, Freitas Junior WR, Perez EA, Ilias EJ, Silva AS, Alves VLS, Afonso JPR, Oliveira MC, Fonseca AL, da Silva MM, Lino MEM, Oliveira Junior MC, Vieira RP, Pedro WJS, Bachi ALL, Insalaco G, Malheiros CA, Oliveira LVF. Surgery for Obesity and Weight-Related Diseases Changes the Inflammatory Profile in Women with Severe Obesity: a Randomized Controlled Clinical Trial. Obes Surg 2021; 31:5224-5236. [PMID: 34554379 DOI: 10.1007/s11695-021-05702-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 12/12/2022]
Abstract
INTRODUCTION/PURPOSE Obesity increases significantly every year worldwide. Since 1980, the prevalence of individuals with obesity has practically doubled. Obesity plays an important role in the pathophysiology of diseases that arise from a complex interaction of nutritional, genetic, and metabolic factors, characterizing a chronic inflammatory state. This study aimed to verify the systemic inflammatory response through the analysis of IGF-1, IL-23, and resistin levels and the lipid profile in severely obese women undergoing surgery for obesity and weight-related diseases. MATERIALS AND METHODS This randomized controlled clinical trial includes female patients clinically diagnosed with severe obesity with an indication for bariatric surgery. RESULTS In the initial evaluation, no significant difference was observed between the control (CG) and bariatric surgery (BSG) groups. The weight, BMI, systolic and diastolic blood pressures, total cholesterol, LDL, HDL, total non-HDL cholesterol, and glucose in BSG patients showed a significant change after surgery. Pre- and post-surgery levels of resistin, IGF-1, and IL-23 showed a significant difference in the BSG group, but only IL-23 was changed after 6 months in the CG. CONCLUSION The results of this study confirmed that weight loss induced by surgery for obesity and weight-related diseases improved the lipid profile and reduced the chronic inflammatory status in women with severe obesity.
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Affiliation(s)
| | | | - Eduardo Araujo Perez
- Post Graduation Program in Health Sciences, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, 01221-010, Brazil
| | - Elias Jirjoss Ilias
- Post Graduation Program in Health Sciences, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, 01221-010, Brazil
| | - Anderson Soares Silva
- Post Graduation Program in Health Sciences, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, 01221-010, Brazil
| | - Vera Lucia Santos Alves
- Post Graduation Program in Health Sciences, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, 01221-010, Brazil
| | - João Pedro Ribeiro Afonso
- Human Movement and Rehabilitation Post-Graduation Program, Evangelical University of Goiás (UniEVANGELICA), Anápolis, GO, 75083-515, Brazil
| | - Miriã Cândida Oliveira
- Human Movement and Rehabilitation Post-Graduation Program, Evangelical University of Goiás (UniEVANGELICA), Anápolis, GO, 75083-515, Brazil
| | - Adriano Luís Fonseca
- Human Movement and Rehabilitation Post-Graduation Program, Evangelical University of Goiás (UniEVANGELICA), Anápolis, GO, 75083-515, Brazil
| | - Marcos Mota da Silva
- Human Movement and Rehabilitation Post-Graduation Program, Evangelical University of Goiás (UniEVANGELICA), Anápolis, GO, 75083-515, Brazil
| | - Maria Eduarda Moreira Lino
- Human Movement and Rehabilitation Post-Graduation Program, Evangelical University of Goiás (UniEVANGELICA), Anápolis, GO, 75083-515, Brazil
| | - Manoel Carneiro Oliveira Junior
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), São José dos Campos, SP, 12245-520, Brazil
| | - Rodolfo Paula Vieira
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), São José dos Campos, SP, 12245-520, Brazil
- Postgraduate Program in Bioengineering, Universidade Brasil, São Paulo, SP, 08230-030, Brazil
| | - Wilson José Sena Pedro
- Clínica de Gastroenterologia e Medicina Avançada (GASTROMED), Anápolis, GO, 75080-620, Brazil
| | - André Luis Lacerda Bachi
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), São José dos Campos, SP, 12245-520, Brazil
- Department of Otorhinolaryngology, ENT Lab, Federal University of São Paulo (UNIFESP), São Paulo, SP, 04021-001, Brazil
- Post-Graduation Program in Health Science, Santo Amaro University (UNISA), São Paulo, SP, 04743-030, Brazil
| | - Giuseppe Insalaco
- Institute for Biomedical Research and Innovation, National Research Council of Italy (CNR), 90146, Palermo, Italy
| | - Carlos Alberto Malheiros
- Post Graduation Program in Health Sciences, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, 01221-010, Brazil
| | - Luis Vicente Franco Oliveira
- Post Graduation Program in Health Sciences, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, 01221-010, Brazil.
- Human Movement and Rehabilitation Post-Graduation Program, Evangelical University of Goiás (UniEVANGELICA), Anápolis, GO, 75083-515, Brazil.
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5
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Diener C, Qin S, Zhou Y, Patwardhan S, Tang L, Lovejoy JC, Magis AT, Price ND, Hood L, Gibbons SM. Baseline Gut Metagenomic Functional Gene Signature Associated with Variable Weight Loss Responses following a Healthy Lifestyle Intervention in Humans. mSystems 2021; 6:e0096421. [PMID: 34519531 PMCID: PMC8547453 DOI: 10.1128/msystems.00964-21] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/23/2021] [Indexed: 12/29/2022] Open
Abstract
Recent human feeding studies have shown how the baseline taxonomic composition of the gut microbiome can determine responses to weight loss interventions. However, the functional determinants underlying this phenomenon remain unclear. We report a weight loss response analysis on a cohort of 105 individuals selected from a larger population enrolled in a commercial wellness program, which included healthy lifestyle coaching. Each individual in the cohort had baseline blood metabolomics, blood proteomics, clinical labs, dietary questionnaires, stool 16S rRNA gene sequencing data, and follow-up data on weight change. We generated additional targeted proteomics data on obesity-associated proteins in blood before and after intervention, along with baseline stool metagenomic data, for a subset of 25 individuals who showed the most extreme weight change phenotypes. We built regression models to identify baseline blood, stool, and dietary features associated with weight loss, independent of age, sex, and baseline body mass index (BMI). Many features were independently associated with baseline BMI, but few were independently associated with weight loss. Baseline diet was not associated with weight loss, and only one blood analyte was associated with changes in weight. However, 31 baseline stool metagenomic functional features, including complex polysaccharide and protein degradation genes, stress-response genes, respiration-related genes, and cell wall synthesis genes, along with gut bacterial replication rates, were associated with weight loss responses after controlling for age, sex, and baseline BMI. Together, these results provide a set of compelling hypotheses for how commensal gut microbiota influence weight loss outcomes in humans. IMPORTANCE Recent human feeding studies have shown how the baseline taxonomic composition of the gut microbiome can determine responses to dietary interventions, but the exact functional determinants underlying this phenomenon remain unclear. In this study, we set out to better understand interactions between baseline BMI, metabolic health, diet, gut microbiome functional profiles, and subsequent weight changes in a human cohort that underwent a healthy lifestyle intervention. Overall, our results suggest that the microbiota may influence host weight loss responses through variable bacterial growth rates, dietary energy harvest efficiency, and immunomodulation.
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Affiliation(s)
| | - Shizhen Qin
- Institute for Systems Biology, Seattle, Washington, USA
| | - Yong Zhou
- Institute for Systems Biology, Seattle, Washington, USA
| | | | - Li Tang
- Institute for Systems Biology, Seattle, Washington, USA
| | - Jennifer C. Lovejoy
- Institute for Systems Biology, Seattle, Washington, USA
- Lifestyle Medicine Institute, Redlands, California, USA
| | | | - Nathan D. Price
- Institute for Systems Biology, Seattle, Washington, USA
- Department of Bioengineering, University of Washington, Seattle, Washington, USA
- Onegevity (a division of Thorne HealthTech), New York, New York, USA
| | - Leroy Hood
- Institute for Systems Biology, Seattle, Washington, USA
- Department of Bioengineering, University of Washington, Seattle, Washington, USA
| | - Sean M. Gibbons
- Institute for Systems Biology, Seattle, Washington, USA
- Department of Bioengineering, University of Washington, Seattle, Washington, USA
- eScience Institute, University of Washington, Seattle, Washington, USA
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6
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Peng J, Yin L, Wang X. Central and peripheral leptin resistance in obesity and improvements of exercise. Horm Behav 2021; 133:105006. [PMID: 34087669 DOI: 10.1016/j.yhbeh.2021.105006] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/25/2021] [Accepted: 05/22/2021] [Indexed: 01/16/2023]
Abstract
Obesity is strongly related to leptin resistance that refers to the state in which leptin fails to inhibit appetite, enhance energy expenditure and regulate glycolipid metabolism, whereas decreasing leptin resistance is important for obesity treatment. Leptin resistance that develops in brain and also directly in peripheral tissues is considered as central and peripheral leptin resistance, respectively. The mechanism of central leptin resistance is the focus of intensive studies but still not totally clarified. A challenged notion about the effect of impaired leptin BBB transport emerges and a concept of "selective leptin resistance" is discussed. Peripheral leptin resistance, especially leptin resistance in muscle, has drawn more attention recently, while its mechanism remains unclear. Exercise is an effective way to reduce obesity, which is at least in part due to the alleviation of leptin resistance. Here, we summarized newly discovered data about the associated factors of central leptin resistance and peripheral leptin resistance, and the actions of exercise on leptin resistance, which is important to understand the mechanisms of leptin resistance and exercise-induced alleviation of leptin resistance, and to facilitate clinical application of leptin in obesity treatment.
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Affiliation(s)
- Jin Peng
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Lijun Yin
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Xiaohui Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China.
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7
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Carmona-Maurici J, Amigó N, Cuello E, Bermúdez M, Baena-Fustegueras JA, Peinado-Onsurbe J, Pardina E. Bariatric surgery decreases oxidative stress and protein glycosylation in patients with morbid obesity. Eur J Clin Invest 2020; 50:e13320. [PMID: 32535887 DOI: 10.1111/eci.13320] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/16/2020] [Accepted: 06/07/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND There is growing evidence that oxidative stress (OS) is a critical factor linking obesity with its associated comorbidities, such as cardiovascular diseases. AIM To evaluate the degree of OS in people with morbid obesity and its relationship with glycoproteins, determined using 1H-NMR spectroscopy, before and after bariatric surgery (BS). METHODS In this observational cohort study, plasma from 24 patients with BMI ≥ 40 kg/m2 (age: 21-65 years) was used to measure metabolites implicated in OS. We measured glycoprotein (GlycA, GlycB and GlycF) areas and shape factors (H/W = height/width). RESULTS One year after BS, oxidized low-density lipoprotein had decreased by 49% (P < .0001), malondialdehyde by 32% (P = .0019) and lipoprotein (a) by 21% (P = .0039). The antioxidant enzymes paraoxonase-1 and catalase increased after BS (43%, P < .0001 and 54%, P = .0002, respectively). Superoxide dismutase-2 had fallen 1 year after BS (32%, P = .0052). After BS, both the glycoprotein areas and shape factors decreased by 20%-26%. These glycoproteins were significantly correlated with OS parameters. The plasma atherogenic index was 63% higher in obese individuals than 1 year after BS and correlated positively with glycoproteins. CONCLUSION For the first time, we here demonstrate the relationship between OS parameters and glycoproteins in people with morbid obesity. So glycoproteins could therefore be a good indicator, together with the oxidative state to assess patient prognosis after BS.
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Affiliation(s)
- Júlia Carmona-Maurici
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Núria Amigó
- Biosfer Teslab SL, Reus, Spain.,Metabolomics Platform, IISPV, DEEEA, Universitat Rovira i Virgili, Tarragona, Spain.,CIBERDEM, Madrid, Spain
| | - Elena Cuello
- Endocrinology Surgery Unit, Arnau de Vilanova University Hospital (UdL), Lleida, Spain
| | - Marcelino Bermúdez
- Vascular and Renal Translational Research Group, IRBLleida, Spain and Spanish Research Network for Renal Diseases (RedInRen. ISCIII), Lleida, Spain
| | | | - Julia Peinado-Onsurbe
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Eva Pardina
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain
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8
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Carmona-Maurici J, Cuello E, Sánchez E, Miñarro A, Rius F, Bueno M, de la Fuente MC, Olsina Kissler JJ, Vidal T, Maria V, Betriu À, Lecube A, Baena-Fustegueras JA, Peinado-Onsurbe J, Pardina E. Impact of bariatric surgery on subclinical atherosclerosis in patients with morbid obesity. Surg Obes Relat Dis 2020; 16:1419-1428. [PMID: 32694041 DOI: 10.1016/j.soard.2020.05.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The main cause of death in obese individuals is cardiovascular disease precipitated by atherosclerosis. Endothelial dysfunction and inflammation are considered early events in the development of the disease. OBJECTIVES The aim of this study was to identify biomarkers of subclinical atherosclerosis in patients with morbid obesity by comparing clinical, vascular, and biochemical parameters indicative of endothelial dysfunction in patients with and without atheromatous plaque and monitoring changes after bariatric surgery. SETTINGS Multicenter collaboration between Biochemistry and Biomedicine Department in Barcelona University and University Hospital Arnau de Vilanova in Lleida. METHODS Plasma samples from 66 patients with morbid obesity were obtained before bariatric surgery and at 6 and 12 months after. Patients were divided into 2 groups based on the presence of atheromatous plaque. We used contrast-enhanced carotid ultrasound, enzyme-linked immunosorbent assay, Griess, and EndoPAT-2000 methods. RESULTS Patients with plaque showed the worst profile of cardiovascular risk factors. Carotid intima-media thickness and plasminogen activator inhibitor-1 were higher in plaque group (P < .0001). After bariatric surgery, vasa vasorum, oxidized low-density lipoprotein, and plasminogen activator inhibitor-1 decreased (P < .0001 in all cases). CONCLUSIONS Obesity promotes atherogenesis, leading to vascular endothelial damage. Bariatric surgery reduces cardiovascular risk and the prognosis is better for patients without plaque. The increase in plasminogen activator inhibitor-1, carotid intima-media thickness, and vasa vasorum proliferation might be the first alterations in the atheromatous process in obesity and could serve as good biomarkers of subclinical atherosclerosis.
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Affiliation(s)
- Júlia Carmona-Maurici
- Department of Biochemistry and Molecular Biomedicine, Biology Faculty, University of Barcelona, Barcelona, Spain
| | - Elena Cuello
- Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain
| | - Enric Sánchez
- Endocrinology and Nutrition Department, Arnau de Vilanova University Hospital, Obesity, Diabetes and Metabolism research group, IRBLleida, University of Lleida, Lleida, Spain
| | - Antonio Miñarro
- Department of Genetics, Microbiology and Statistics, Biology Faculty, University of Barcelona, Barcelona, Spain
| | - Ferran Rius
- Endocrinology and Nutrition Department, Arnau de Vilanova University Hospital, Obesity, Diabetes and Metabolism research group, IRBLleida, University of Lleida, Lleida, Spain
| | - Marta Bueno
- Endocrinology and Nutrition Department, Arnau de Vilanova University Hospital, Obesity, Diabetes and Metabolism research group, IRBLleida, University of Lleida, Lleida, Spain
| | - M Cruz de la Fuente
- Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain
| | - Jorge Juan Olsina Kissler
- Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain
| | - Teresa Vidal
- Vascular and Renal Translational Research Group, IRB Lleida, RedinRen-ISCIII, Lleida, Spain
| | - Virtudes Maria
- Vascular and Renal Translational Research Group, IRB Lleida, RedinRen-ISCIII, Lleida, Spain
| | - Àngels Betriu
- Vascular and Renal Translational Research Group, IRB Lleida, RedinRen-ISCIII, Lleida, Spain
| | - Albert Lecube
- Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Juan Antonio Baena-Fustegueras
- Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain
| | - Julia Peinado-Onsurbe
- Department of Biochemistry and Molecular Biomedicine, Biology Faculty, University of Barcelona, Barcelona, Spain.
| | - Eva Pardina
- Department of Biochemistry and Molecular Biomedicine, Biology Faculty, University of Barcelona, Barcelona, Spain
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9
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Effects of gastric sleeve surgery on the serum levels of GH, IGF-1 and IGF-binding protein 2 in healthy obese patients. BMC Gastroenterol 2020; 20:199. [PMID: 32586279 PMCID: PMC7318424 DOI: 10.1186/s12876-020-01309-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 05/19/2020] [Indexed: 12/21/2022] Open
Abstract
Background Bariatric surgery is an effective treatment for severe obesity. It also ameliorates diabetes independently of weight loss through mechanisms that are not fully understood. In this study, we investigated the levels of GH, IGF-1 and IGF-binding protein 2 (IGFBP-2) after gastric sleeve surgery in healthy obese individuals. Method This study was conducted in 33 obese (BMI > 38.3) healthy male subjects aged 25 to 50 years undergoing sleeve gastrectomy. GH, IGF-1 and IGFBP-2 levels were evaluated by ELISA at baseline and 6–12 months after surgery. Other parameters, such as glucose, BMI, insulin, HOMA-IR and lipid profile, were also investigated. Results Systemic GH (12.32 vs. 50.97 pg/mL, p < 0.001) and IGFBP-2 levels (51.86 vs. 68.81 pg/mL, p < 0.001) were elevated after bariatric surgery. There was no change in IGF-1 level from before to after surgery. BMI (52.18 vs. 40.11, p = 0.001), insulin (19.35 vs. 8.80 mIU/L, p < 0.001) and HOMA-IR index (6.48 to 2.52, p < 0.001) were reduced after surgery. Lipid profile analysis revealed that total cholesterol (4.26 vs. 5.12 mmol/L, p < 0.001) and high-density lipoprotein (HDL) (0.90 to 1.55 mmol/L, p < 0.001) were increased, while triglycerides were decreased, after surgery (1.62 vs. 1.05 mmol/L p < 0.001). GH, IGF-1, and IGFBP-2 were not correlated with insulin or lipid parameters. Conclusions Our study suggests that improved circulating GH and IGFBP-2 levels may mediate the beneficial effects of gastric sleeve surgery in improving insulin sensitivity and reducing insulin demand.
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10
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Freitas WR, Oliveira LVF, Perez EA, Ilias EJ, Lottenberg CP, Silva AS, Urbano JJ, Oliveira MC, Vieira RP, Ribeiro-Alves M, Alves VLS, Kassab P, Thuler FR, Malheiros CA. Systemic Inflammation in Severe Obese Patients Undergoing Surgery for Obesity and Weight-Related Diseases. Obes Surg 2019; 28:1931-1942. [PMID: 29497960 PMCID: PMC6018580 DOI: 10.1007/s11695-017-3104-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Obesity is a worldwide disease related to genetic, environmental, and behavioral factors, and it is associated with high rates of morbidity and mortality. Recently, obesity has been characterized by a low-grade inflammatory state known as inflammome indicated by chronic increases in circulating concentrations of inflammatory markers. The purpose of this study was to evaluate the effect of weight loss induced by surgery for obesity and weight-related diseases on pro-inflammatory cytokine (TNF-α) and anti-inflammatory adipokine (adiponectin) levels, and on an adipose-derived hormone (leptin) in severely obese subjects. Methods This randomized, controlled trial involved 55 severe obese patients (50 women, age 18–63 years, and body mass index of 35.7–63 kg/m2) who underwent bariatric surgery (BS). Patients with a BMI > 65 kg/m2 and clinical and mental instability, or significant and unrealistic expectations of surgery were excluded. Blood samples were collected during the fasting period to analyze tumor necrosis factor alpha (TNF-α), adiponectin, and leptin levels by enzyme-linked immunosorbent assay. Results At baseline, no significant difference was observed in the anthropometric, demographic, clinical characteristics and biochemistry and inflammatory markers between the control group (CG) and bariatric surgery group (BSG). The same finding was also observed when we compared the baseline variables to those at the 6-month follow-up in the CG. However, the same variables in the BSG group were significantly different between baseline and the 6-month follow-up after BS. Conclusions Weight loss induced by surgery for obesity and weight-related diseases reduced the inflammome state in severely obese patients.
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Affiliation(s)
- Wilson R Freitas
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
| | - Luis Vicente Franco Oliveira
- School of Medicine, University Center of Anapolis (UniEvangélica), Rua Graciano A. de Souza 514, Lote 28, Quadra 07, Setor Bougainville, Anapolis, GO, 75075-580, Brazil.
| | - Eduardo A Perez
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
| | - Elias J Ilias
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
| | | | - Anderson S Silva
- Sleep Laboratory, Master's Degree and PhD Programs in Rehabilitation Sciences, Nove de Julho University (UNINOVE), Sao Paulo, SP, Brazil
| | - Jessica J Urbano
- Sleep Laboratory, Master's Degree and PhD Programs in Rehabilitation Sciences, Nove de Julho University (UNINOVE), Sao Paulo, SP, Brazil
| | - Manoel C Oliveira
- Immunology and Pulmonary Exercise Laboratory, Master's Degree and PhD Program in Rehabilitation Sciences, Nove de Julho University (UNINOVE), Sao Paulo, SP, Brazil
| | - Rodolfo P Vieira
- Universidade Brasil, Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Sao Jose dos Campos, SP, Brazil
| | | | - Vera L S Alves
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
| | - Paulo Kassab
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
| | - Fabio R Thuler
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
| | - Carlos A Malheiros
- Master's Degree and PhD Post Graduation Program in Research in Surgery, Santa Casa of Sao Paulo Medical School, Sao Paulo, SP, Brazil
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11
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Aleidi SM, Shayeb E, Bzour J, Abu-Rish EY, Hudaib M, Al Alawi S, Bustanji Y. Serum level of insulin-like growth factor-I in type 2 diabetic patients: impact of obesity. Horm Mol Biol Clin Investig 2019; 39:hmbci-2019-0015. [PMID: 31398142 DOI: 10.1515/hmbci-2019-0015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 07/11/2019] [Indexed: 01/02/2023]
Abstract
Background Insulin-like growth factor-I (IGF-I) is homologous to proinsulin and possesses glucose reducing activity. The association between the level of IGF-I and diabetes has been highlighted. However, this association is controversial due to the influence of different factors including obesity. The aim of the study was to evaluate serum level of IGF-I in type 2 diabetic patients compared to control subjects. Materials and methods A cross-sectional study involving 100 participants was conducted. Serum levels of IGF-I were measured using enzyme-linked immunosorbent assay (ELISA) and the fasting plasma glucose (FPG) levels were measured using the glucose oxidase method. Results IGF-I levels in the diabetic patients were significantly lower than in non-diabetic control subjects (105.13 ± 6.34 vs. 159.96 ± 9.62 ng/mL, p < 0.0001). Among the diabetic group, there was no significant difference in IGF-I levels between obese diabetic patients and non-obese diabetic patients, p = 0.18. Similarly, among the non-diabetic group, a non-significant difference was found in IGF-I levels between obese non-diabetic and non-obese non-diabetic subjects, p = 0.156. However, among the obese group, obese diabetic patients had significantly lower IGF-I serum levels compared to obese non-diabetic subjects (112.07 ± 7.97 vs. 147.07 ± 13.05 ng/mL, p = 0.02). Furthermore, among the non-obese group, the non-obese diabetic patients had significantly lower IGF-I serum levels compared to the non-obese non-diabetic subjects (91.66 ± 9.93 vs. 171.86 ± 13.86 ng/mL, p < 0.0001). No significant associations were observed between IGF-I level and any of the age, gender, body mass index (BMI), FPG levels, or the duration of diabetes. Conclusions Type 2 diabetes mellitus is associated with lower levels of IGF-I regardless to the presence or absence of obesity.
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Affiliation(s)
- Shereen M Aleidi
- The University of Jordan, Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, 11942Amman, Jordan
| | - Eman Shayeb
- The University of Jordan, Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, 11942Amman, Jordan
| | | | - Eman Y Abu-Rish
- The University of Jordan, Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, 11942Amman, Jordan
| | - Mohammad Hudaib
- Al Ain University of Science and Technology, Collage of pharmacy , 112612,Abu Dhabi, UAE.,The University of Jordan, pharmaceutical science,school of pharmacy, Amman, Jordan
| | - Sundus Al Alawi
- The University of Jordan, Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, 11942Amman, Jordan
| | - Yasser Bustanji
- The University of Jordan, Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, 11942Amman, Jordan.,Hamdi Mango Center for Scientific Research, Amman, Jordan
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12
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Grannell A, De Vito G, Murphy JC, le Roux CW. The influence of skeletal muscle on appetite regulation. Expert Rev Endocrinol Metab 2019; 14:267-282. [PMID: 31106601 DOI: 10.1080/17446651.2019.1618185] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 05/09/2019] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Fat-free mass, of which skeletal muscle is amajor component, correlates positively with energy intake at energy balance. This is due to the effects of metabolically active tissue on energy expenditure which in itself appears to signal to the brain adrive to eat to ensure cellular energy homeostasis. The mechanisms responsible for this drive to eat are unknown but are likely to be related to energy utilization. Here muscle imparts an indirect influence on hunger. The drive to eat is also enhanced after muscle loss secondary to intentional weight loss. The evidence suggests loss of both fat mass and skeletal muscle mass directly influences the trajectory and magnitude of weight regain highlighting their potential role in long-termappetite control. The mechanisms responsible for the potential direct drive to eat stemming from muscle loss are unknown. AREAS COVERED The literature pertaining to muscle and appetite at energy balance and after weight loss was examined. Aliterature search was conducted to identify studies related to appetite, muscle, exercise, and weight loss. EXPERT OPINION Understanding the mechanisms which link energy expenditure and muscle loss to hunger has the potential to positively impact both the prevention and the treatment of obesity.
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Affiliation(s)
- Andrew Grannell
- a Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences , University College Dublin , Dublin , Ireland
- b MedFit Proactive Healthcare, Blackrock , Dublin , Ireland
| | - Giuseppe De Vito
- c School of Public Health, Physiotherapy and Sports Science , University College Dublin , Dublin , Ireland
| | - John C Murphy
- b MedFit Proactive Healthcare, Blackrock , Dublin , Ireland
| | - Carel W le Roux
- a Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences , University College Dublin , Dublin , Ireland
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13
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Sim WS, Choi SI, Cho BY, Choi SH, Han X, Cho HD, Kim SH, Lee BY, Kang IJ, Cho JH, Lee OH. Anti-Obesity Effect of Extract from Nelumbo Nucifera L., Morus Alba L., and Raphanus Sativus Mixture in 3T3-L1 Adipocytes and C57BL/6J Obese Mice. Foods 2019; 8:E170. [PMID: 31109115 PMCID: PMC6560450 DOI: 10.3390/foods8050170] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 12/14/2022] Open
Abstract
The antioxidant and anti-adipogenic activities of a mixture of Nelumbo nucifera L., Morus alba L., and Raphanus sativus were investigated and their anti-obesity activities were established in vitro and in vivo. Among the 26 different mixtures of extraction solvent and mixture ratios, ethanol extract mixture no. 1 (EM01) showed the highest antioxidant (α,α-Diphenyl-β-picrylhydrazyl, total phenolic contents) and anti-adipogenic (Oil-Red O staining) activities. EM01 inhibited lipid accumulation in 3T3-L1 adipocytes compared to quercetin-3-O-glucuronide. Furthermore, body, liver, and adipose tissue weights decreased in the high-fat diet (HFD)-EM01 group compared to in the high-fat diet control group (HFD-CTL). EM01 lowered blood glucose levels elevated by the HFD. Lipid profiles were improved following EM01 treatment. Serum adiponectin significantly increased, while leptin, insulin growth factor-1, non-esterified fatty acid, and glucose significantly decreased in the HFD-EM01 group. Adipogenesis and lipogenesis-related genes were suppressed, while fat oxidation-related genes increased following EM01 administration. Thus, EM01 may be a natural anti-obesity agent.
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Affiliation(s)
- Wan-Sup Sim
- Department of food science and biotechnology, Kangwon National University, Chuncheon 24341, Korea.
| | - Sun-Il Choi
- Department of food science and biotechnology, Kangwon National University, Chuncheon 24341, Korea.
| | - Bong-Yeon Cho
- Department of food science and biotechnology, Kangwon National University, Chuncheon 24341, Korea.
| | - Seung-Hyun Choi
- Department of food science and biotechnology, Kangwon National University, Chuncheon 24341, Korea.
| | - Xionggao Han
- Department of food science and biotechnology, Kangwon National University, Chuncheon 24341, Korea.
| | | | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 34520, Korea.
| | - Boo-Yong Lee
- Department of Food Science and Biotechnology, CHA University, Seongam, Gyeonggi 13488, Korea.
| | - Il-Jun Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon 24252, Korea.
| | | | - Ok-Hwan Lee
- Department of food science and biotechnology, Kangwon National University, Chuncheon 24341, Korea.
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14
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Cambras T, Pardina E, Carmona J, Ricart-Jane D, Minarro A, Ferrer R, Lecube A, Balibrea JM, Caubet E, González O, Vilallonga R, Cuello E, Fort JM, Baena-Fustegueras JA, Díez-Noguera A, Peinado-Onsurbe J. Seasonal variation of body weight loss after bariatric surgery. Chronobiol Int 2019; 36:672-680. [PMID: 30843440 DOI: 10.1080/07420528.2019.1580716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Seasonal variations have been described in humans in several variables such as sleep, mood, appetite, food preferences, or body weight. We hypothesized that these variations could also influence the decrease in body weight rate in patients submitted to body weight loss interventions. Thus, here we tested the variations of weight loss according to the time of the year the surgery took place in a group patients (n = 1322) submitted to bariatric surgery in the Hospital Universitari de la Vall d'Hebron in Barcelona (geographical coordinates: 41°25'41″N 2°8'32″E). For the analysis, the percentage of total body weight loss (%TWL), excess body weight loss (%EWL) and percentage of body mass index loss (%BMIL) were calculated at 3 (n = 1255), 6 (n = 1172), 9 (n = 1002), and 12 months (n = 1076) after surgery. For %EWL and %BMIL a statistically significant seasonal variation was detected when the variables were calculated at 3 months, but not at the other times, with more weight loss in summer-fall. However, seasonal variations were not detected for %TWL (p = 0.09). The mean amplitude of the seasonal rhythm for %EWL was of 1.8%, while for the rhythm of %BMIL was 0.7%. Moreover, a second peak was detected in January-February modulating the seasonal rhythm of the two variables. Results confirm seasonal variations in humans and indicate that short term responses to weight loss can be modulated by the time of year.
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Affiliation(s)
- Trinitat Cambras
- a Department of Physiology and Biochemistry, Faculty of Pharmacy and Food Sciences , Universitat de Barcelona , Barcelona , Spain
| | - Eva Pardina
- b Department of Biochemistry and Molecular Biomedicine, Faculty of Biology , Universitat de Barcelona , Barcelona , Spain
| | - Julia Carmona
- b Department of Biochemistry and Molecular Biomedicine, Faculty of Biology , Universitat de Barcelona , Barcelona , Spain
| | - David Ricart-Jane
- b Department of Biochemistry and Molecular Biomedicine, Faculty of Biology , Universitat de Barcelona , Barcelona , Spain
| | - Antonio Minarro
- c Department of Genetics, Microbiology and Statistics, Faculty of Biology , Universitat de Barcelona , Barcelona , Spain
| | - Roser Ferrer
- d Department of Biochemistry , Institut de Recerca Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Albert Lecube
- e Department of Endocrinology and Nutrition , Arnau de Vilanova University Hospital, CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM) , Lleida , Spain
| | - Jose María Balibrea
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Enric Caubet
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Oscar González
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Ramón Vilallonga
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Elena Cuello
- g Endocrinology Surgery Unit , Arnau de Vilanova University Hospital (UdL) , Lleida , Spain
| | - Jose Manuel Fort
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | | | - Antoni Díez-Noguera
- a Department of Physiology and Biochemistry, Faculty of Pharmacy and Food Sciences , Universitat de Barcelona , Barcelona , Spain
| | - Julia Peinado-Onsurbe
- b Department of Biochemistry and Molecular Biomedicine, Faculty of Biology , Universitat de Barcelona , Barcelona , Spain
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15
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Cambras T, Pardina E, Carmona J, Ricart-Jané D, Miñarro A, Ferrer R, Lecube A, Balibrea JM, Caubet E, González O, Vilallonga R, Fort JM, Cuello E, Baena-Fustegueras JA, Díez-Noguera A, Peinado-Onsurbe J. Seasonal variations of changes in lipid and glucidic variables after bariatric surgery. Chronobiol Int 2018; 36:250-257. [PMID: 30351989 DOI: 10.1080/07420528.2018.1533560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Seasonality is a phenomenon that is characterized by changes over the year in sleep, mood, behaviour, appetite and body weight. In humans, seasonal variations have been found in certain variables, such as lipid variables and body mass index. We hypothesize that this rhythm could influence the expected variation of the levels of biochemical variables in cases of body weight loss. Thus, the goal of this study was to observe whether the time of year in which bariatric surgery (BS) took place modulated the changes in several variables related to glucidic and lipid metabolism. Blood samples were obtained from 24 women and 10 men before BS and 1 and 3 months after BS. We calculated the percentage of variation that occurred for each individual and for each variable as a function of the time of the year. Data were adjusted to a 12-month period sinusoidal curve, with significance being set at p < 0.05. The results showed that almost all of the studied variables changed due to the BS according to a seasonal rhythm. Most of the variables showed a decrease that was most prominent in winter. In the cases of body mass index (BMI), adrenocorticotropin hormone (ACTH), and cortisol, the highest variation occurred in winter. Insulin and cholesterol in high-density lipoproteins (cHLD) variations were higher in springtime. Glucose variation showed a decrease after surgery with acrophase in summer-fall and plasminogen activator inhibitor-1 (PAI-1) and homeostatic model assessment-insulin resistance (HOMA-IR) in spring-summer. Ghrelin levels showed increases with a rhythm of variation with an acrophase in summer-fall. The seasonal rhythm found in this study fits nearly with the inverse of the endogenous circannual rhythm of the variables studied. The time of the year when the highest variation takes place is related to the circannual rhythm of the variable. The results agree with the manifestation of seasonal rhythm in human biochemical variables, which are reflected in the responses to weight loss after BS.
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Affiliation(s)
- Trinitat Cambras
- a Department of Physiology and Biochemistry, Faculty of pharmacy and Food Sciences , Universitat de Barcelona , Barcelona , Spain
| | - Eva Pardina
- b Department of Biochemistry and Molecular Biomedicine, Biology Faculty , Barcelona University , Barcelona , Spain
| | - Júlia Carmona
- b Department of Biochemistry and Molecular Biomedicine, Biology Faculty , Barcelona University , Barcelona , Spain
| | - David Ricart-Jané
- b Department of Biochemistry and Molecular Biomedicine, Biology Faculty , Barcelona University , Barcelona , Spain
| | - Antonio Miñarro
- c Department of Genetics, Microbiology and Statistics, Biology Faculty , Barcelona University , Barcelona , Spain
| | - Roser Ferrer
- d Department of Biochemistry , Institut de Recerca Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Albert Lecube
- e Department of Endocrinology and Nutrition , Arnau de Vilanova University Hospital, CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM, Spain) , Lleida , Spain
| | - José María Balibrea
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Enric Caubet
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Oscar González
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Ramón Vilallonga
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Jose Manuel Fort
- f Endocrinology Surgery Unit , Hospital Universitari Vall d'Hebron , Barcelona , Spain
| | - Elena Cuello
- g Endocrinology Surgery Unit , Arnau de Vilanova University Hospital (UdL) , Lleida , Spain
| | | | - Antoni Díez-Noguera
- a Department of Physiology and Biochemistry, Faculty of pharmacy and Food Sciences , Universitat de Barcelona , Barcelona , Spain
| | - Julia Peinado-Onsurbe
- b Department of Biochemistry and Molecular Biomedicine, Biology Faculty , Barcelona University , Barcelona , Spain
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16
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Brynskov T, Laugesen CS, Svenningsen AL, Floyd AK, Sørensen TL. Monitoring of Diabetic Retinopathy in relation to Bariatric Surgery: a Prospective Observational Study. Obes Surg 2018; 26:1279-86. [PMID: 26476835 DOI: 10.1007/s11695-015-1936-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND To investigate the need for closer perioperative monitoring of diabetic retinopathy in patients with type 2 diabetes undergoing bariatric surgery. METHODS Prospective observational clinical study of 56 patients with type 2 diabetes undergoing bariatric surgery. The patients were examined with 7-field fundus images and optical coherence tomography scans 2 weeks before and 1, 3, 6 and 12 months after bariatric surgery. Worsening was defined as a two-step change in the Wisconsin Epidemiologic Study of Diabetic Retinopathy scale or appearance or worsening of macular edema. Postoperative changes were analyzed in a mixed model. RESULTS Six patients (11 %) had any worsening at any visit, and three (5 %) persisted at 1 year. Of the 24 patients with preoperative retinopathy, 4-13 % worsened and 9-22 % improved, with significant overall improvement at 6 months (p = 0.01). Only one (3%) of the 32 patients without preoperative diabetic retinopathy had a transient worsening at 6 months. No patients developed macular edema, but the whole cohort had a minor increase in center point foveal thickness that peaked 6 months postoperatively. The patients were required to have good glucose control preoperatively where HbA1c was 6.4 ± 1.9 %. CONCLUSIONS Diabetic retinopathy was clinically stable after bariatric surgery, and none of the observed changes would have resulted in a changed screening interval at our center. This supports adherence to regular diabetic retinopathy screening guidelines following bariatric surgery in well-controlled patients. A clinically negligible but statistically significant foveal thickening 6 months postoperatively warrants further study.
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Affiliation(s)
- Troels Brynskov
- Department of Ophthalmology, Copenhagen University Hospital Roskilde, Køgevej 7-13, 4000, Roskilde, Denmark.
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Caroline Schmidt Laugesen
- Department of Ophthalmology, Copenhagen University Hospital Roskilde, Køgevej 7-13, 4000, Roskilde, Denmark
| | | | - Andrea Karen Floyd
- Department of Bariatric Surgery, Copenhagen University Hospital Køge, Køge, Denmark
| | - Torben Lykke Sørensen
- Department of Ophthalmology, Copenhagen University Hospital Roskilde, Køgevej 7-13, 4000, Roskilde, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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17
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Cronin BE, Allsopp PJ, Slevin MM, Magee PJ, McCaffrey TA, Livingstone MBE, Strain JJ, McSorley EM. The effect of weight change over a 2-year period on inflammatory status in postmenopausal women. Eur J Clin Nutr 2017; 72:388-393. [DOI: 10.1038/s41430-017-0014-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 01/19/2023]
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18
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Brynskov T, Laugesen CS, Floyd AK, Frystyk J, Sørensen TL. The IGF-Axis and Diabetic Retinopathy Before and After Gastric Bypass Surgery. Obes Surg 2017; 27:408-415. [PMID: 27465937 DOI: 10.1007/s11695-016-2303-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Laparoscopic gastric bypass (LGB) abruptly causes remission of type 2 diabetes (T2D). Such dramatic metabolic changes have previously been found to cause worsening of diabetic retinopathy (DR) and circulating insulin-like growth factor I (IGF-I) has been suggested as a causal mediator. We aimed to evaluate baseline imbalances in the circulating IGF-system and changes after LGB in patients with T2D. METHODS Prospective ocular examinations and measurement of the IGF-axis before and 3 and 12 months after LGB. IGF-bioactivity was measured by cell-based IGF-I receptor (IGF-IR) kinase activation assay (bioactive IGF). Total IGF-I, IGF-II and IGF binding protein (IGFBP) 1 and 3 were determined by immunoassays. RESULTS At baseline, 18 of 36 patients presented with DR. These patients had higher levels of bioactive IGF (p = 0.03) than patients without DR and this association was strengthened in multivariate analysis (p = 0.006). Three patients had worsening of DR, unrelated to other markers. In univariate analysis, bioactive IGF increased at 3 months (p = 0.05) but this change became insignificant in multivariate analysis (p = 0.11). IGFBP-1 increased whereas IGFBP-3 and total IGF-II decreased at the two postoperative visits (p ≤ 0.001). Total IGF-I showed no significant changes. HbA1c, glucose, HOMA-IR and lipids improved after surgery. Two patients did not complete the 12-month visit. CONCLUSIONS In obese T2D patients, bioactive IGF is a potential biomarker for DR and levels tended to increase 3 months after bariatric surgery. IGFBP-1 increased while IGFBP-3 and total IGF-II decreased postoperatively, but these changes were unassociated with the development of DR. Markers of the metabolic syndrome improved.
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Affiliation(s)
- Troels Brynskov
- Department of Ophthalmology, Zealand University Hospital Roskilde, Roskilde, Denmark.
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | | | - Andrea Karen Floyd
- Department of Bariatric Surgery, Zealand University Hospital Køge, Køge, Denmark
| | - Jan Frystyk
- Medical Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Torben Lykke Sørensen
- Department of Ophthalmology, Zealand University Hospital Roskilde, Roskilde, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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19
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Orrù S, Nigro E, Mandola A, Alfieri A, Buono P, Daniele A, Mancini A, Imperlini E. A Functional Interplay between IGF-1 and Adiponectin. Int J Mol Sci 2017; 18:E2145. [PMID: 29036907 PMCID: PMC5666827 DOI: 10.3390/ijms18102145] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/02/2017] [Accepted: 10/09/2017] [Indexed: 02/07/2023] Open
Abstract
A functional relationship is suggested between two well-known protein hormones, insulin-like growth factor 1 (IGF-1) and adiponectin. In the last two decades in fact, different experimental evidence has indicated a non-random link between them. Here, we describe briefly the IGF-1 and adiponectin systems, and we then focus on their putative interplay in relation to several pathological conditions, including obesity, diabetes, insulin resistance, cardiovascular disease, and cancer. Although the existing studies are hardly comparable, they definitely indicate a functional connection between these two protein hormones. In conclusion, the current knowledge strongly encourages further research into the common, as well as novel, mechanisms through which IGF-1 and adiponectin exert their concerted action.
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Affiliation(s)
- Stefania Orrù
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- IRCCS SDN, via E. Gianturco 113, 80142 Napoli, Italy.
| | - Ersilia Nigro
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
- Dipartimento di Medicina e di Scienze della Salute "Vincenzo Tiberio" Università degli Studi del Molise, Campobasso, Italy.
| | - Annalisa Mandola
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
| | - Andreina Alfieri
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
| | - Pasqualina Buono
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- IRCCS SDN, via E. Gianturco 113, 80142 Napoli, Italy.
| | - Aurora Daniele
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via G. Vivaldi 42, 81100 Caserta, Italy.
| | - Annamaria Mancini
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
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20
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Tamboli RA, Antoun J, Sidani RM, Clements BA, Eckert EA, Marks-Shulman P, Gaylinn BD, Williams DB, Clements RH, Albaugh VL, Abumrad NN. Metabolic responses to exogenous ghrelin in obesity and early after Roux-en-Y gastric bypass in humans. Diabetes Obes Metab 2017; 19:1267-1275. [PMID: 28345790 PMCID: PMC5568950 DOI: 10.1111/dom.12952] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 12/11/2022]
Abstract
AIMS Ghrelin is a gastric-derived hormone that stimulates growth hormone (GH) secretion and has a multi-faceted role in the regulation of energy homeostasis, including glucose metabolism. Circulating ghrelin concentrations are modulated in response to nutritional status, but responses to ghrelin in altered metabolic states are poorly understood. We investigated the metabolic effects of ghrelin in obesity and early after Roux-en-Y gastric bypass (RYGB). MATERIALS AND METHODS We assessed central and peripheral metabolic responses to acyl ghrelin infusion (1 pmol kg-1 min-1 ) in healthy, lean subjects (n = 9) and non-diabetic, obese subjects (n = 9) before and 2 weeks after RYGB. Central responses were assessed by GH and pancreatic polypeptide (surrogate for vagal activity) secretion. Peripheral responses were assessed by hepatic and skeletal muscle insulin sensitivity during a hyperinsulinaemic-euglycaemic clamp. RESULTS Ghrelin-stimulated GH secretion was attenuated in obese subjects, but was restored by RYGB to a response similar to that of lean subjects. The heightened pancreatic polypeptide response to ghrelin infusion in the obese was attenuated after RYGB. Hepatic glucose production and hepatic insulin sensitivity were not altered by ghrelin infusion in RYGB subjects. Skeletal muscle insulin sensitivity was impaired to a similar degree in lean, obese and post-RYGB individuals in response to ghrelin infusion. CONCLUSIONS These data suggest that obesity is characterized by abnormal central, but not peripheral, responsiveness to ghrelin that can be restored early after RYGB before significant weight loss. Further work is necessary to fully elucidate the role of ghrelin in the metabolic changes that occur in obesity and following RYGB.
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Affiliation(s)
- Robyn A. Tamboli
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Joseph Antoun
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Reem M. Sidani
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - B. Austin Clements
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Emily A. Eckert
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Pam Marks-Shulman
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Bruce D. Gaylinn
- Division of Endocrinology and Metabolism, Department of Medicine, University of Virginia, Charlottesville, VA
| | | | - Ronald H. Clements
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Vance L. Albaugh
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Naji N. Abumrad
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
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21
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Pardina E, Ferrer R, Rossell J, Ricart-Jané D, Méndez-Lara KA, Baena-Fustegueras JA, Lecube A, Julve J, Peinado-Onsurbe J. Hepatic CD36 downregulation parallels steatosis improvement in morbidly obese undergoing bariatric surgery. Int J Obes (Lond) 2017; 41:1388-1393. [PMID: 28555086 DOI: 10.1038/ijo.2017.115] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/28/2017] [Accepted: 04/02/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND The notion that hepatic expression of genes involved in lipid metabolism is altered in obese patients is relatively new and its relationship with hepatic steatosis and cardiometabolic alterations remains unclear. OBJECTIVE We assessed the impact of Roux-en-Y gastric bypass surgery (RYGB) on the expression profile of genes related to metabolic syndrome in liver biopsies from morbidly obese individuals using a custom-made, focused cDNA microarray, and assessed the relationship between the expression profile and hepatic steatosis regression. MATERIALS AND METHODS Plasma and liver samples were obtained from patients at baseline and 12 months after surgery. Samples were assayed for chemical and gene expression analyses, as appropriate. Gene expression profiles were assessed using custom-made, focused TaqMan low-density array cards. RESULTS RYGB-induced weight loss produced a favorable reduction in fat deposits, insulin resistance (estimated by homeostasis model assessment of insulin resistance (HOMA-IR)), and plasma and hepatic lipid levels. Compared with the baseline values, the gene expression levels of key targets of lipid metabolism were significantly altered: CD36 was significantly downregulated (-40%; P=0.001), whereas APOB (+27%; P=0.032) and SCARB1 (+37%; P=0.040) were upregulated in response to surgery-induced weight reduction. We also observed a favorable reduction in the expression of the PAI1 gene (-80%; P=0.007) and a significant increase in the expression of the PPARA (+60%; P=0.014) and PPARGC1 genes (+36%; P=0.015). Notably, the relative fold decrease in the expression of the CD36 gene was directly associated with a concomitant reduction in the cholesterol (Spearman's r=0.92; P=0.001) and phospholipid (Spearman's r=0.76; P=0.04) contents in this tissue. CONCLUSIONS For the first time, RYGB-induced weight loss was shown to promote a favorable downregulation of CD36 expression, which was proportional to a favorable reduction in the hepatic cholesterol and phospholipid contents in our morbidly obese subjects following surgery.
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Affiliation(s)
- E Pardina
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - R Ferrer
- Unitat d'Hormones, Servei de Bioquímica, Hospital Universitari de la Vall d'Hebron, Barcelona, Spain
| | - J Rossell
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - D Ricart-Jané
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - K A Méndez-Lara
- Institut de Recerca de l'Hospital de La Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques de l'Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain.,Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | - A Lecube
- Departament d'Endocrinologia i Nutrició, Hospital Universitari Arnau de Vilanova, Universitat de Lleida, Lleida, Spain.,Unitat de Recerca en Diabetes i Metabolisme, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Barcelona, Spain
| | - J Julve
- Institut de Recerca de l'Hospital de La Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques de l'Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain.,Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Barcelona, Spain
| | - J Peinado-Onsurbe
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
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22
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Mika A, Sledzinski T. Alterations of specific lipid groups in serum of obese humans: a review. Obes Rev 2017; 18:247-272. [PMID: 27899022 DOI: 10.1111/obr.12475] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/16/2016] [Accepted: 09/05/2016] [Indexed: 12/15/2022]
Abstract
Obesity is a major contributor to the dysfunction of liver, cardiac, pulmonary, endocrine and reproductive system, as well as a component of metabolic syndrome. Although development of obesity-related disorders is associated with lipid abnormalities, most previous studies dealing with the problem in question were limited to routinely determined parameters, such as serum concentrations of triacylglycerols, total cholesterol, low-density and high-density lipoprotein cholesterol. Many authors postulated to extend the scope of analysed lipid compounds and to study obesity-related alterations in other, previously non-examined groups of lipids. Comprehensive quantitative, structural and functional analysis of specific lipid groups may result in identification of new obesity-related alterations. The review summarizes available evidence of obesity-related alterations in various groups of lipids and their impact on health status of obese subjects. Further, the role of diet and endogenous lipid synthesis in the development of serum lipid alterations is discussed, along with potential application of various lipid compounds as risk markers for obesity-related comorbidities.
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Affiliation(s)
- A Mika
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - T Sledzinski
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Gdansk, Poland
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23
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Noblet JN, Goodwill AG, Sassoon DJ, Kiel AM, Tune JD. Leptin augments coronary vasoconstriction and smooth muscle proliferation via a Rho-kinase-dependent pathway. Basic Res Cardiol 2016; 111:25. [PMID: 26975316 PMCID: PMC5126981 DOI: 10.1007/s00395-016-0545-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/16/2016] [Accepted: 02/26/2016] [Indexed: 10/24/2022]
Abstract
Leptin has been implicated as a key upstream mediator of pathways associated with coronary vascular dysfunction and disease. The purpose of this investigation was to test the hypothesis that leptin modifies the coronary artery proteome and promotes increases in coronary smooth muscle contraction and proliferation via influences on Rho kinase signaling. Global proteomic assessment of coronary arteries from lean swine cultured with obese concentrations of leptin (30 ng/mL) for 3 days revealed significant alterations in the coronary artery proteome (68 proteins) and identified an association between leptin treatment and calcium signaling/contraction (four proteins) and cellular growth and proliferation (35 proteins). Isometric tension studies demonstrated that both acute (30 min) and chronic (3 days, serum-free media) exposure to obese concentrations of leptin potentiated depolarization-induced contraction of coronary arteries. Inhibition of Rho kinase significantly reduced leptin-mediated increases in coronary artery contractions. The effects of leptin on the functional expression of Rho kinase were time-dependent, as acute treatment increased Rho kinase activity while chronic (3 day) exposure was associated with increases in Rho kinase protein abundance. Proliferation assays following chronic leptin administration (8 day, serum-containing media) demonstrated that leptin augmented coronary vascular smooth muscle proliferation and increased Rho kinase activity. Inhibition of Rho kinase significantly reduced these effects of leptin. Taken together, these findings demonstrate that leptin promotes increases in coronary vasoconstriction and smooth muscle proliferation and indicate that these phenotypic effects are associated with alterations in the coronary artery proteome and dynamic effects on the Rho kinase pathway.
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Affiliation(s)
- Jillian N Noblet
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, 46202, USA
| | - Adam G Goodwill
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, 46202, USA
| | - Daniel J Sassoon
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, 46202, USA
| | - Alexander M Kiel
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, 46202, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - Johnathan D Tune
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, 46202, USA.
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24
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Ferrer R, Pardina E, Rossell J, Oller L, Viñas A, Baena-Fustegueras JA, Lecube A, Vargas V, Balibrea JM, Caubet E, González O, Vilallonga R, Fort JM, Peinado-Onsurbe J. Morbidly "Healthy" Obese Are Not Metabolically Healthy but Less Metabolically Imbalanced Than Those with Type 2 Diabetes or Dyslipidemia. Obes Surg 2016; 25:1380-91. [PMID: 25515498 DOI: 10.1007/s11695-014-1528-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND We have investigated the differences between metabolically "healthy" morbidly obese patients and those with comorbidities. MATERIALS AND METHODS Thirty-two morbidly obese patients were divided by the absence ("healthy": DM-DL-) or presence of comorbidities (dyslipidemic: DM-DL+, or dyslipidemic and with type 2 diabetes: DM+DL+). We have studied various plasma parameters and gene expression adipose tissue, before and after gastric bypass. RESULTS The group DM+DL+ tends to have lower values than the other two groups for anthropometric parameters. Regarding the satiety parameters, only leptin (p = 0.0024) showed a significant increase with comorbidities. Lipid parameters showed significant differences among groups, except for phospholipids and NEFA. For insulin resistance parameters, only glucose (p < 0.0001) was higher in DM+DL+ patients, but not insulin or homeostasis model assessment of insulin resistance (HOMA-IR). The gene expression of adiponectin, insulin receptor (INSR) and glucose receptor-4 (GLUT4), in the subcutaneous fat, decreased in all groups vs. a non-obese control. Interleukin-6 (IL6) and the inhibitor of plasminogen activator type 1 (PAI-1) genes decreased only in DM-DL+ and DM+DL+, but not in "healthy" patients. Leptin increased in all groups vs. the non-obese control. The visceral fat from DM+DL+ patients showed a sharp decrease in adiponectin, GLUT4, IL6 and PAI-1. All parameters mentioned above improved very significantly by surgery, independent of the occurrence of comorbidities. CONCLUSIONS The morbidly obese "healthy" individual is not really metabolically healthy, but morbidly obese individuals with diabetes and dyslipidemia are more metabolically imbalanced.
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Affiliation(s)
- Roser Ferrer
- Biochemistry Department, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Barcelona, Spain
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25
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Pardina E, Ferrer R, Rossell J, Baena-Fustegueras JA, Lecube A, Fort JM, Caubet E, González Ó, Vilallonga R, Vargas V, Balibrea JM, Peinado-Onsurbe J. Diabetic and dyslipidaemic morbidly obese exhibit more liver alterations compared with healthy morbidly obese. BBA CLINICAL 2016; 5:54-65. [PMID: 27051590 PMCID: PMC4802404 DOI: 10.1016/j.bbacli.2015.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/17/2015] [Accepted: 12/22/2015] [Indexed: 12/14/2022]
Abstract
Background & aims To study the origin of fat excess in the livers of morbidly obese (MO) individuals, we analysed lipids and lipases in both plasma and liver and genes involved in lipid transport, or related with, in that organ. Methods Thirty-two MO patients were grouped according to the absence (healthy: DM − DL −) or presence of comorbidities (dyslipidemic: DM − DL +; or dyslipidemic with type 2 diabetes: DM + DL +) before and one year after gastric bypass. Results The livers of healthy, DL and DM patients contained more lipids (9.8, 9.5 and 13.7 times, respectively) than those of control subjects. The genes implicated in liver lipid uptake, including HL, LPL, VLDLr, and FAT/CD36, showed increased expression compared with the controls. The expression of genes involved in lipid-related processes outside of the liver, such as apoB, PPARα and PGC1α, CYP7a1 and HMGCR, was reduced in these patients compared with the controls. PAI1 and TNFα gene expression in the diabetic livers was increased compared with the other obese groups and control group. Increased steatosis and fibrosis were also noted in the MO individuals. Conclusions Hepatic lipid parameters in MO patients change based on their comorbidities. The gene expression and lipid levels after bariatric surgery were less prominent in the diabetic patients. Lipid receptor overexpression could enable the liver to capture circulating lipids, thus favouring the steatosis typically observed in diabetic and dyslipidaemic MO individuals. The criteria used to define the “metabolically healthy” obese is not applicable to morbidly obese patients. Virtually no studies of how bariatric surgery affects depending on comorbidities and less how affect to the liver. Anthropometrics, fat, lipid profile and inflammation parameters are different depending of comorbidities, not only in plasma but also in liver. The extent of lipases and lipids in the liver biopsies could help not only the diagnosis but also to follow the course of recovery after surgery. The morbidly obese individuals with diabetes and dyslipidemia have more altered metabolic profiles than the other two groups.
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Key Words
- ALT, Alanine transaminase
- AST, Aspartate transaminase
- ATGL, Adipose Tissue Glycerol Lipase
- ApoA1, Apolipoprotein A1
- BMI, Body Mass Index
- CPT1a, Carnitine Palmitoyltransferase 1a
- CRP, C-reactive protein
- CYP7a1, Cholesterol 7 Alpha-Hydroxylase
- DL, Dyslipidaemia
- DM, Type 2 diabetes mellitus
- DM + DL +, Obese patients with type 2 diabetes and dyslipidaemia
- DM − DL +, Dyslipidemic obese patients
- DM − DL −, “Healthy” obese patients, or patients without type 2 diabetes or dyslipidaemia
- Diabetes
- FAT/CD36, Fatty Acid Translocase or Cluster of Differentiation 36
- GGT, gamma-glutaryl transferase
- HL, Hepatic lipase
- HMGCR, 3-Hydroxy-3-Methylglutaryl-CoA Reductase
- HOMA-IR, Homeostasis Model Assessment of Insulin Resistance
- HSL, Hormone-sensitive lipase
- HTA, Hypertension
- IL6, Interleukin-6
- IR, Insulin resistance
- KBs, Ketone bodies
- LDLr, Low-Density Lipoprotein receptor
- Lipases
- Lipids
- Liver
- MO, Morbidly obese
- NAFLD
- NAFLD, Non-alcoholic fatty liver disease
- NASH, Non-alcoholic liver steatohepatitis
- NEFA, Non-esterified fatty acid
- PAI1, Plasminogen Activator Inhibitor of Type 1
- PLs, Phospholipids
- PPARα, Peroxisome Proliferator-Activated Receptor alpha
- PPARα, Peroxisome Proliferator-Activated Receptor gamma Coactivator 1-alpha
- QMs, Chylomicrons
- RYGBP, Roux-en-Y gastric bypass
- SAT, Subcutaneous adipose tissue
- SCARB1, Scavenger Receptor Class B, Member 1
- Steatosis
- TAGs, Triacylglycerides
- TC, Total cholesterol
- TNFα, Tumour Necrosis Factor-alpha
- UCP2, Uncoupling Protein 2
- VAT, Visceral adipose tissue
- VLDLr, Very-Low-Density Lipoprotein receptor
- apoB, Apolipoprotein B
- cHDL, High-Density Lipoprotein Cholesterol
- cLDL, Low-Density Lipoprotein Cholesterol
- eNOS3, Endothelial Nitric Oxide Synthase 3
- iNOS2, Inducible Nitric Oxide Synthase 2
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Affiliation(s)
- Eva Pardina
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Spain
| | - Roser Ferrer
- Biochemistry Department, Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - Joana Rossell
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Spain
| | | | - Albert Lecube
- Endocrinology and Nutrition Department, Arnau de Vilanova University Hospital (UdL), Diabetes and Metabolism Research Unit (VHIR, UAB), CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM) del Instituto de Salud Carlos III, Spain
| | - Jose Manuel Fort
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - Enric Caubet
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - Óscar González
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - Ramón Vilallonga
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - Víctor Vargas
- CIBER de Enfermedades Hepáticas y Digestivas (CIBEREHD) del Instituto de Salud Carlos III (ISCIII), Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - José María Balibrea
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma de Barcelona, Spain
| | - Julia Peinado-Onsurbe
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Spain
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Hribal ML, Fiorentino TV, Sesti G. Role of C reactive protein (CRP) in leptin resistance. Curr Pharm Des 2014; 20:609-15. [PMID: 23688010 PMCID: PMC4155811 DOI: 10.2174/13816128113199990016] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/13/2013] [Indexed: 01/23/2023]
Abstract
Increased plasma levels of both leptin and C reactive protein (CRP) have been reported in a number of conditions, including obesity, and have been linked to cardiovascular pathophysiological processes and increased cardiovascular risk; interestingly these two biomarkers appear to be able to reciprocally regulate their bioavailability, through complex mechanisms that have not been completely clarified yet. Here we first review clinical evidence suggesting not only that the circulatory levels of CRP and leptin show an independent correlation, but also that assessing them in tandem may result in an increased ability to predict cardiovascular disease. We summarize also molecular studies showing that leptin is able to promote CRP production from hepatocytes and endothelial cells in vitro and discuss the studies addressing the possibility that in vivo leptin administration may be able to modulate plasma CRP levels. Furthermore, we describe two studies demonstrating that CRP directly binds leptin in extra-cellular settings, thus impairing its biological actions. Finally we report genetic evidence that common variations at the leptin receptor locus are associated with CRP blood levels. Overall, the data reviewed here show that the chronic elevation of CRP observed in obese subjects may worsen leptin resistance, contributing to the pathogenesis of cardiovascular disease, and highlight a potential link between conditions, such as leptin resistance and endothelial dysfunction, that may be amenable of pharmacological treatment targeted to the disruption of leptin-CRP interaction.
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Affiliation(s)
| | | | - Giorgio Sesti
- Department of Medical and Surgical Sciences, University of Catanzaro Magna Graecia, Viale Europa, località Germaneto 88100 Catanzaro, Italy.
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27
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Ferrer R, Pardina E, Rossell J, Baena-Fustegueras JA, Lecube A, Balibrea JM, Caubet E, González O, Vilallonga R, Fort JM, Peinado-Onsurbe J. Decreased lipases and fatty acid and glycerol transporter could explain reduced fat in diabetic morbidly obese. Obesity (Silver Spring) 2014; 22:2379-87. [PMID: 25132069 DOI: 10.1002/oby.20861] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 07/16/2014] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The possible differences were investigated in 32 morbidly obese patients depending on whether they were "healthy" or had dyslipidemia and/or type 2 diabetes. METHODS Lipid metabolism and insulin resistance were analyzed in subcutaneous (SAT) and visceral adipose tissue (VAT) before and during 6 and 12 months after Roux-en-Y gastric bypass. RESULTS Significant differences have been found in lipoprotein lipase (LPL) and hormone-sensitive lipase (HSL) activities in SAT from the different obese group versus normal weight (control) but not between them. The reduced lipase activities in VAT were 43 and 19% smaller (22 and 4% smaller, respectively, vs. control) than the "healthy" obese group for LPL and HSL, respectively, and were accompanied with a reduced expression of these lipases, as well as decreased expression of FAT/CD36, FABP4, and AQ7 in that tissue. In addition, the expression of the other genes measured showed a downregulation not only versus the "healthy" obese but also versus the normal weight group. CONCLUSIONS Being obese is not "healthy," but it is even less so if morbidly obese patients with diabetes and dyslipidemia were considered. The reduced fat accumulation in these patients may be attributed to the decrease of the expression and activity of the lipases of their adipose tissue.
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Affiliation(s)
- Roser Ferrer
- Biochemistry Department, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
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Cătoi AF, Pârvu A, Galea RF, Pop ID, Mureşan A, Cătoi C. Nitric oxide, oxidant status and antioxidant response in morbidly obese patients: the impact of 1-year surgical weight loss. Obes Surg 2014; 23:1858-63. [PMID: 23625335 DOI: 10.1007/s11695-013-0968-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The aims of this study were to evaluate nitric oxide (NO) metabolites (nitrite/nitrate NO x ) as proinflammatory parameter and total oxidant status (TOS) as well as total antioxidant response (TAR) as oxidative stress (OS) markers in morbidly obese (MO) patients in comparison with normal-weight healthy (NWH) subjects and to determine the post-bariatric surgery changes of NO x and OS indicators in relation with weight loss. METHODS We examined serum NO x , TOS, and TAR in a bariatric group of MO patients and a NWH control group (n = 23 each group). In the NWH group, serum was examined once, while in the MO group, serum was examined before and at 3, 6, and 12 months after silastic ring vertical gastroplasty (SRVG). RESULTS Serum NO x and TOS values were higher (p < 0.001), while TAR level was lower (p < 0.001) in MO patients as compared to the NWH group. No significant changes occurred at 12 months after surgery in the MO group as far as the NO x (p = 0.93), TOS (p = 0.11), and TAR (p = 0.15) levels were concerned as compared to baseline values. However, NO x increased at 6 months after surgery (p < 0.008) and then decreased by the 12th month after SRVG (p < 0.008), reaching almost baseline values. CONCLUSIONS At baseline, there was a high production of proinflammatory and OS markers in MO patients. SRVG surgical weight loss was not accompanied by significant changes of these parameters at 1 year after surgery.
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Affiliation(s)
- Adriana Florinela Cătoi
- Department of Functional Sciences, Medicine Faculty, "Iuliu Haţieganu" University of Medicine and Pharmacy Cluj-Napoca, Victor Babeş 8, 400012, Cluj-Napoca, Romania
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30
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Ferrer R, Pardina E, Rossell J, Baena-Fustegueras JA, Lecube A, Balibrea JM, Caubet E, González O, Vilallonga R, Fort JM, Peinado-Onsurbe J. Haematological parameters and serum trace elements in "healthy" and "unhealthy" morbidly obese patients before and after gastric bypass. Clin Nutr 2014; 34:276-83. [PMID: 24792189 DOI: 10.1016/j.clnu.2014.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 04/04/2014] [Accepted: 04/06/2014] [Indexed: 01/17/2023]
Abstract
BACKGROUND & AIMS We have investigated the differences in plasma parameters and serum trace elements between "healthy" and unhealthy morbidly obese patients before and after Roux-en-Y gastric bypass surgery. METHODS A group of 32 morbidly obese patients undergoing bariatric surgery were divided into three groups. Group 1 subjects were free of dyslipidemia and type II diabetes mellitus (defined as "healthy" obese, DM-DL-); Group 2 subjects had only the presence of dyslipidemia (DM-DL+), while group 3 patients demonstrated the presence of both (DM + DL+). In all patients, we studied haematological, haemostasis, anaemia, coagulation plasma and trace elements parameters before and 1, 6 and 12 months after gastric bypass surgery. RESULTS We found significant differences in some haematological parameters, including haemostasis (e.g., T-Quick, p = 0.0048) and coagulation (e.g., ATIII and PAI-1, p = 0.001 and p < 0.0001, respectively) and in anaemia parameters (e.g., folate, cobalamin and transferrin, p = 0.0002, p < 0.0001 and p = 0.0001, respectively) but also in serum trace elements between the groups. However, the response to bariatric surgery was similar in the three groups. CONCLUSION Any healthy morbid obese subject is really metabolically "unhealthy" because he or she has many other haematologic or serum abnormalities that are often not included in the criteria for the definition of "healthy" in these obese subjects.
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Affiliation(s)
- Roser Ferrer
- Biochemistry Department, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
| | - Eva Pardina
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Diagonal 643, 08028 Barcelona, Spain
| | - Joana Rossell
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Diagonal 643, 08028 Barcelona, Spain
| | | | - Albert Lecube
- Endocrinology and Nutrition Department at Arnau de Vilanova University Hospital (UdL) and Diabetes and Metabolism Research Unit (VHIR, UAB) and CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM) at the Instituto de Salud Carlos III, Spain
| | - José María Balibrea
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
| | - Enric Caubet
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
| | - Oscar González
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
| | - Ramón Vilallonga
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
| | - Jose Manuel Fort
- Endocrinology Surgery Unit, Hospital Universitari Vall D'Hebron, Universitat Autònoma De Barcelona, Spain
| | - Julia Peinado-Onsurbe
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Diagonal 643, 08028 Barcelona, Spain.
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Jeon BT, Heo RW, Shin HJ, Yi CO, Lee YH, Joung HN, Jung JH, Jung J, Kim SK, Hahm JR, Lee BW, Ko JM, Baek IY, Kang SS, Roh GS. Attenuation by a Vigna nakashimae extract of nonalcoholic fatty liver disease in high-fat diet-fed mice. Biosci Biotechnol Biochem 2014; 78:482-9. [PMID: 25036839 DOI: 10.1080/09168451.2014.882753] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A Vigna nakashimae (VN) extract has been shown to have antidiabetic and anti-obesity effects. However, the mechanism underlying the effect of a VN extract on hepatic inflammation and endoplasmic reticulum (ER) stress remains unclear. In the present study, we investigated how a VN extract protects against the development of non-alcoholic fatty liver disease (NAFLD). A VN extract for 12 weeks reduced the body weight, serum metabolic parameters, cytokines, and hepatic steatosis in high-fat diet (HFD)-fed mice. A VN extract decreased HFD-induced hepatic acetyl CoA carboxylase and glucose transporter 4 expressions. In addition to the levels of high-mobility group box 1 and receptor for advanced glycation, the hepatic expression of ATF4 and caspase-3 was also reduced by a VN extract. Thus, these data indicate that a chronic VN extract prevented NAFLD through multiple mechanisms, including inflammation, ER stress, and apoptosis in the liver.
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Affiliation(s)
- Byeong Tak Jeon
- a Department of Pediatrics , Oregon Health and Science University , Portland , OR , USA
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Viesti A. Collares R, Salgado W, Pretti da Cunha Tirapelli D, dos Santos JS. The expression of LEP, LEPR, IGF1 and IL10 in obesity and the relationship with microRNAs. PLoS One 2014; 9:e93512. [PMID: 24690978 PMCID: PMC3972109 DOI: 10.1371/journal.pone.0093512] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 03/07/2014] [Indexed: 11/19/2022] Open
Abstract
Obesity is a multifactorial disease, with epigenetic alterations. Have been described modifications in the expression of some microRNAs, and some proteins related to obesity. The objective was to determine and correlate, in obese patients, the gene expression of LEP, LEPR, IGF1, IL10 and of miR-27a, miR-27b, miR-143 and miR-145. RNA was extracted from biopsies of subcutaneous fat, liver and visceral fat of 15 obese subjects submitted to bariatric surgery and of 15 non-obese subjects submitted to cholecystectomy for cDNA synthesis and for RT-PCR. The microRNAs were chosen using the TargetScan software. An increased expression of LEP and IGF1 was detected in the subcutaneous fat of the obese group compared to control, while the expression of IGF1 was higher in the control group than in the obese one. MiRNA-27a had a higher expression in the omentum of the obese patients and there was also a correlation in the expression of miRNA-145 and LEPR in the omentum of this group.
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Affiliation(s)
- Renata Viesti A. Collares
- Department of Surgery and Anatomy of the Faculty of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, SP, Brazil
| | - Wilson Salgado
- Department of Surgery and Anatomy of the Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirao Preto, SP, Brazil
- * E-mail:
| | - Daniela Pretti da Cunha Tirapelli
- Department of Surgery and Anatomy of the Faculty of Medicine of Ribeirão Preto, University of São Paulo and Laboratory of Molecular Biology, Ribeirao Preto, SP, Brazil
| | - José Sebastião dos Santos
- Department of Surgery and Anatomy of the Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirao Preto, SP, Brazil
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Winsz-Szczotka K, Kuźnik-Trocha K, Komosińska-Vassev K, Kucharz E, Kotulska A, Olczyk K. Relationship between adiponectin, leptin, IGF-1 and total lipid peroxides plasma concentrations in patients with systemic sclerosis: possible role in disease development. Int J Rheum Dis 2014; 19:706-14. [PMID: 24646107 DOI: 10.1111/1756-185x.12332] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM The relationship between adiponectin, leptin, insulin-like growth factor-1 (IGF-1) and total lipid peroxide (TLP) concentrations, and its possible role in the development of diffuse cutaneous systemic sclerosis (dcSSc), were evaluated in this study. METHODS, RESULTS Plasma adipokines and IGF-1 levels were determined using the enzyme-linked immunosorbent assay method, whereas TLP levels were determined using a photometric test, in 36 dcSSc patients and 40 healthy controls matched by age, sex and body mass index (BMI). Plasma levels of adipokines were significantly lowered, while TLP and IGF-1 were increased in dcSSc patients compared to controls. Adiponectin correlated significantly with leptin (r = 0.44), TLP (r = -0.54), CRP (r = -0.47), erythrocyte sedimentation rate (ESR) (r = -0.40) and duration of disease (r = -0.44). A significant relationship was found between leptinemia and IGF-1 (r = -0.40), TLP (r = 0.44), duration of disease (r = -0.38) and BMI (r = 0.65). TLP correlated with IGF-1 (r = -0.43), C-reactive protein (r = 0.47), ESR (r = 0.49) and duration of disease (r = 0.46), while IGF-1 correlated with ESR (r = -0.40). CONCLUSIONS Adipose tissue may play a complex role in the development of dcSSc, affecting both the metabolic state of the organism, as well as free radical-induced connective tissue degradation. Although, leptin seems to exert a pro-oxidative effect and both adiponectin and IGF-1 appear to prevent free radical damage, confirmation of the above effects requires further research.
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Affiliation(s)
- Katarzyna Winsz-Szczotka
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec, Poland
| | - Kornelia Kuźnik-Trocha
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec, Poland
| | - Katarzyna Komosińska-Vassev
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec, Poland
| | - Eugeniusz Kucharz
- Department of Internal Medicine and Rheumatology, Medical University of Silesia, Katowice, Poland
| | - Anna Kotulska
- Department of Internal Medicine and Rheumatology, Medical University of Silesia, Katowice, Poland
| | - Krystyna Olczyk
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec, Poland
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Julve J, Pardina E, Pérez-Cuéllar M, Ferrer R, Rossell J, Baena-Fustegueras JA, Fort JM, Lecube A, Blanco-Vaca F, Sánchez-Quesada JL, Peinado-Onsurbe J. Bariatric surgery in morbidly obese patients improves the atherogenic qualitative properties of the plasma lipoproteins. Atherosclerosis 2014; 234:200-5. [PMID: 24674904 DOI: 10.1016/j.atherosclerosis.2014.02.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 02/14/2014] [Accepted: 02/17/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the effect of weight loss induced in morbidly obese subjects by Roux-en-Y gastric bypass bariatric surgery on the atherogenic features of their plasma lipoproteins. METHODS Twenty-one morbidly obese subjects undergoing bariatric surgery were followed up for up to 1 year after surgery. Plasma and lipoproteins were assayed for chemical composition and lipoprotein-associated phospholipase A2 (Lp-PLA2) activity. Lipoprotein size was assessed by non-denaturing polyacrylamide gradient gel electrophoresis, and oxidised LDL by ELISA. Liver samples were assayed for mRNA abundance of oxidative markers. RESULTS Lipid profile analysis revealed a reduction in the plasma concentrations of cholesterol and triglycerides, which were mainly associated with a significant reduction in the plasma concentration of circulating apoB-containing lipoproteins rather than with changes in their relative chemical composition. All patients displayed a pattern A phenotype of LDL subfractions and a relative increase in the antiatherogenic plasma HDL-2 subfraction (>2-fold; P < 0.001). The switch towards predominantly larger HDL particles was due to an increase in their relative cholesteryl ester content. Excess weight loss also led to a significant decrease in the plasma concentration of oxidised LDL (∼-25%; P < 0.01) and in the total Lp-PLA2 activity. Interestingly, the decrease in plasma Lp-PLA2 was mainly attributed to a decrease in the apoB-containing lipoprotein-bound Lp-PLA2. CONCLUSION Our data indicate that the weight loss induced by bariatric surgery ameliorates the atherogenicity of plasma lipoproteins by reducing the apoB-containing Lp-PLA2 activity and oxidised LDL, as well as increasing the HDL-2 subfraction.
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Affiliation(s)
- Josep Julve
- Institut d'Investigació Biomèdica de l'Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Barcelona, Spain; Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eva Pardina
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Montserrat Pérez-Cuéllar
- Institut d'Investigació Biomèdica de l'Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
| | - Roser Ferrer
- Departament de Bioquímica i Unitat de Cirurgia, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Joana Rossell
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | | | - José Manuel Fort
- Departament de Bioquímica i Unitat de Cirurgia, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Albert Lecube
- Departament d'Endocrinologia i Nutrició, Hospital Universitari Arnau de Vilanova, Universitat de Lleida, Lleida, Spain; Unitat de Recerca en Diabetes i Metabolisme, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Barcelona, Spain; Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Francisco Blanco-Vaca
- Institut d'Investigació Biomèdica de l'Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Barcelona, Spain; Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - José Luis Sánchez-Quesada
- Institut d'Investigació Biomèdica de l'Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
| | - Julia Peinado-Onsurbe
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain.
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Song Z, Zhang M, Xue R, Cao G, Gong C. Reducing blood glucose levels in TIDM mice with an orally administered extract of sericin from hIGF-I-transgenic silkworm cocoons. Food Chem Toxicol 2014; 67:249-54. [PMID: 24632065 DOI: 10.1016/j.fct.2014.02.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 02/18/2014] [Accepted: 02/21/2014] [Indexed: 10/25/2022]
Abstract
In previous studies, we reported that the blood glucose levels of mice with type I diabetes mellitus (TIDM) was reduced with orally administered silk gland powder from silkworms transgenic for human insulin-like growth factor-I (hIGF-I). However, potential safety hazards could not be eliminated because the transgenic silk gland powder contained heterologous DNA, including the green fluorescent protein (gfp) and neomycin resistance (neo) genes. These shortcomings might be overcome if the recombinant hIGF-I were secreted into the sericin layer of the cocoon. In this study, silkworm eggs were transfected with a novel piggyBac transposon vector, pigA3GFP-serHS-hIGF-I-neo, containing the neo, gfp, and hIGF-I genes controlled by the sericin-1 (ser-1) promoter with the signal peptide DNA sequence of the fibrin heavy chain (Fib-H) and a helper plasmid containing the piggyBac transposase sequence under the control of the Bombyx mori actin 3 (A3) promoter, using sperm-mediated gene transfer to generate the transformed silkworms. The hIGF-I content estimated by enzyme-linked immunosorbent assay was approximately 162.7 ng/g. To estimate the biological activity of the expressed hIGF-I, streptozotocin-induced TIDM mice were orally administered sericin from the transgenic silkworm. The blood glucose levels of the mice were significantly reduced, suggesting that the extract from the transgenic hIGF-I silkworm cocoons can be used as an orally administered drug.
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Affiliation(s)
- Zuowei Song
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, PR China
| | - Mengyao Zhang
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, PR China
| | - Renyu Xue
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, PR China; National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, PR China
| | - Guangli Cao
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, PR China; National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, PR China
| | - Chengliang Gong
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, PR China; National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, PR China.
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Jung SY, Hursting SD, Guindani M, Vitolins MZ, Paskett E, Chang S. Bioavailable insulin-like growth factor-I inversely related to weight gain in postmenopausal women regardless of exogenous estrogen. Cancer Epidemiol Biomarkers Prev 2014; 23:534-44. [PMID: 24363252 PMCID: PMC3968542 DOI: 10.1158/1055-9965.epi-13-1053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Weight gain, insulin-like growth factor-I (IGF-I) levels, and excess exogenous steroid hormone use are putative cancer risk factors, yet their interconnected pathways have not been fully characterized. This cross-sectional study investigated the relationship between plasma IGF-I levels and weight gain according to body mass index (BMI), leptin levels, and exogenous estrogen use among postmenopausal women. METHODS This study included 794 postmenopausal women who enrolled in an ancillary study of the Women's Health Initiative Observational Study between February 1995 and July 1998. The relationship between IGF-I levels and weight gain was analyzed using ordinal logistic regression. We used the molar ratio of IGF-I to IGF binding protein-3 (IGF-I/IGFBP-3) or circulating IGF-I levels adjusting for IGFBP-3 as a proxy of bioavailable IGF-I. The plasma concentrations were expressed as quartiles. RESULTS Among the obese group, women in the third quartile (Q3) of IGF-I and highest quartile of IGF-I/IGFBP-3 were less likely to gain weight (>3% from baseline) than were women in the first quartiles (Q1). Among the normal-weight group, women in Q2 and Q3 of IGF-I/IGFBP-3 were 70% less likely than those in Q1 to gain weight. Among current estrogen users, Q3 of IGF-I/IGFBP-3 had 0.5 times the odds of gaining weight than Q1. CONCLUSIONS Bioavailable IGF-I levels were inversely related to weight gain overall. IMPACT Although weight gain was not consistent with increases in IGF-I levels among postmenopausal women in this report, avoidance of weight gain as a strategy to reduce cancer risk may be recommended.
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Affiliation(s)
- Su Yon Jung
- Department of Epidemiology, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Stephen D. Hursting
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, Texas, USA
| | - Michele Guindani
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Mara Z. Vitolins
- Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest University, School of Medicine, Winston-Salem, North Carolina, USA
| | - Electra Paskett
- Division of Cancer Prevention and Control, College of Medicine, Ohio State University, Columbus, Ohio, USA
| | - Shine Chang
- Department of Epidemiology, Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Preoperative prediction of growth hormone (GH)/insulin-like growth factor-1 (IGF-1) axis modification and postoperative changes in candidates for bariatric surgery. Obes Surg 2013. [PMID: 23179244 DOI: 10.1007/s11695-012-0820-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Several factors alter the growth hormone (GH)/insulin-like growth factor-1 (IGF-1) axis in obese patients, but GH/IGF-1 correlation with anthropometric parameters and lipid metabolism is still unclear. We evaluated this relationship and the postoperative axis modifications in candidates for bariatric surgery. METHODS Eighty-eight patients (males/females (M/F), 34/54) scheduled for bariatric surgery (biliopancreatic diversion or laparoscopic-adjustable gastric banding) between 2008 and 2010 were included in this observational, open, prospective study. RESULTS Preoperative serum GH concentrations were found near the lowest limit of normal range in both sexes, with males showing the lowest values (130 vs. 1,405 pg/ml; p < 0.01). Serum concentrations of IGF-1 were within the normal range (M/F, 179/168.5 ng/ml), whereas IGF-binding protein (BP)1 and 3 values were at the lowest limits of normal range in both sexes (M/F 1.8/3.1 μg/ml and M/F 4.1/4.2 μg/ml, respectively). A statistically significant inverse correlation was found between GH, IGF-1, and IGF-BP1-3 values and total cholesterol, LDL-cholesterol, and triglycerides values in both sexes. GH and IGF-BP1-3 values were also inversely related to waist circumference and waist/hip ratio (WHR). GH, IGF-1, and IGF-BP1 and 3 values (35 cases) increased 1 year postoperatively in both sexes, mainly after malabsorptive procedures. CONCLUSIONS Our results support the hypothesis that GH deficiency associated with low levels of binding proteins in obese patients may be an endocrine response to visceral fat and high levels of non-esterified fatty acids, assessable in daily clinical practice by WHR, total and LDL-cholesterol, and triglycerides. In these patients, malabsorptive procedures might be the treatment of choice due to the metabolic adaptations induced.
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Pellitero S, Granada ML, Martínez E, Balibrea JM, Guanyabens E, Serra A, Moreno P, Navarro M, Romero R, Alastrué A, Puig-Domingo M. IGF1 modifications after bariatric surgery in morbidly obese patients: potential implications of nutritional status according to specific surgical technique. Eur J Endocrinol 2013; 169:695-703. [PMID: 23946276 DOI: 10.1530/eje-13-0209] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVES IGF1 is decreased in morbidly obese (MO) patients and its changes after bariatric surgery weight loss (WL) are not well known. The aim of this study was to analyse IGF1 modifications in MO patients after WL and its relationship to ghrelin and to different types of surgeries. DESIGN Retrospective follow-up study at the University Medical Center. METHODS One hundred and nine MO patients (age 44.19.3, BMI 51.748.75KG/M(2)) were evaluated at baseline and 1 year after surgery: 28 sleeve gastrectomy (SG), 31 distal modified (m), and 50 ringed (r) Roux-en-Y gastric bypass (RYGBP) surgery. Changes in IGF1, IGFBP3, ratio IGF1:IGFBP3, and ghrelin were evaluated 1 year after surgery. RESULTS Baseline prevalence of low IGF1 (defined by s.d. IGF1<-2) was 22%, and %WL 1 year after surgery was 34.9±8.9%. There was a significant decrease in IGFBP3 in all the procedures, an increase in IGF1:IGFBP3 ratio in rRYGBP and SG, but total IGF1 only increased significantly in SG. Albumin concentrations decreased in mRYGBP, did not change in rRYGBP, but increased in SG after surgery. Total ghrelin concentrations increased after both RYGBPs and decreased after SG (P<0.05 in all cases). The prevalence of low IGF1 decreased in SG (28.6 vs 10.1%, P=0.03) and did not change in RYGPBP techniques. The %albumin change was the only dependent variable associated with the % total IGF1 change. CONCLUSIONS Recovery of low IGF1 after bariatric surgery was specifically related to the albumin modifications induced by surgery and was not related to ghrelin modifications.
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Affiliation(s)
- Silvia Pellitero
- Endocrinology and Nutrition Service, Department of Internal Medicine
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Insulin-like growth factor 1 opposes the effects of C-reactive protein on endothelial cell activation. Mol Cell Biochem 2013; 385:199-205. [DOI: 10.1007/s11010-013-1828-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 09/14/2013] [Indexed: 12/20/2022]
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Relationship between acute phase proteins and serum fatty acid composition in morbidly obese patients. DISEASE MARKERS 2013; 35:105-12. [PMID: 24167354 PMCID: PMC3774976 DOI: 10.1155/2013/913715] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 05/01/2013] [Indexed: 01/14/2023]
Abstract
Background. Obesity is considered a low-grade inflammatory state and has been associated with increased acute phase proteins as well as changes in serum fatty acids. Few studies have assessed associations between acute phase proteins and serum fatty acids in morbidly obese patients. Objective. To investigate the relationship between acute phase proteins (C-Reactive Protein, Orosomucoid, and Albumin) and serum fatty acids in morbidly obese patients. Methods. Twenty-two morbidly obese patients were enrolled in this study. Biochemical and clinical data were obtained before bariatric surgery, and fatty acids measured in preoperative serum. Results. Orosomucoid was negatively correlated with lauric acid (P = 0.027) and eicosapentaenoic acid (EPA) (P = 0.037) and positively with arachidonic acid (AA) (P = 0.035), AA/EPA ratio (P = 0.005), and n-6/n-3 polyunsaturated fatty acids ratio (P = 0.035). C-Reactive Protein (CRP) was negatively correlated with lauric acid (P = 0.048), and both CRP and CRP/Albumin ratio were negatively correlated with margaric acid (P = 0.010, P = 0.008, resp.). Albumin was positively correlated with EPA (P = 0.027) and margaric acid (P = 0.008). Other correlations were not statistically significant. Conclusion. Our findings suggest that serum fatty acids are linked to acute phase proteins in morbidly obese patients.
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Yang Y, Zhang F, Ding R, Skrip L, Wang Y, Lei H, Hu D. ADIPOQ gene polymorphisms and cancer risk: A meta-analysis. Cytokine 2013. [DOI: 10.1016/j.cyto.2012.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Li G, Cong L, Chen X, Chen K, Li F, Zhao AZ. Regulation of adiponectin secretion and expression by insulin and β‐agonists in rat. EUR J LIPID SCI TECH 2012. [DOI: 10.1002/ejlt.201200275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gang Li
- Departments of Cardiac Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, P. R. China
| | - Li Cong
- Departments of Cardiac Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, P. R. China
- Departments of Endocrinology and Metabolism, The Second Affiliated Hospital, Harbin Medical University, Harbin, P. R. China
| | - Xiaoqing Chen
- Departments of Endocrinology and Metabolism, The Second Affiliated Hospital, Harbin Medical University, Harbin, P. R. China
| | - Ke Chen
- Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Fanghong Li
- Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Allan Z. Zhao
- Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, PA, USA
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Loria-Kohen V, Fernández-Fernández C, Bermejo LM, Morencos E, Romero-Moraleda B, Gómez-Candela C. Effect of different exercise modalities plus a hypocaloric diet on inflammation markers in overweight patients: a randomised trial. Clin Nutr 2012. [PMID: 23177481 DOI: 10.1016/j.clnu.2012.10.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND & AIMS Inflammation markers (IM) have been associated with the development of chronic diseases. This study compares the effects on IM of three exercise programs combined with a hypocaloric diet. METHODS 119 overweight participants (73 women, 46 men) aged 18-50 years were randomised into four treatment groups: strength training (S; n = 30), endurance training (E; n = 30), combined S + E (SE; n = 30), and a diet and physical activity recommendations group (D; n = 29). Energy intake, anthropometric variables (AV), training variables (VO2peak, strength index, dynamometric strength index [DSI]) and plasma IM were recorded at baseline and after 22 weeks of treatment. RESULTS 84 participants completed the study. At 22 weeks, all groups showed a significantly reduced energy intake (P < 0.001) and improved AV (P < 0.001). VO2peak significantly increased in all groups (P < 0.01). DSI increased in the exercise groups only (P < 0.05). Plasma leptin fell significantly (P < 0.001) in the S and E groups, but not significantly in the SE group (P = 0.029) (no significant differences between these groups). Tumour necrosis factor-α (TNF-α), and C-reactive protein (CRP) concentrations decreased in all groups when examined together, but not when examined separately. No significant differences were seen in interleukin-6 (IL-6). CONCLUSIONS Combining strength or endurance training with a hypocaloric diet improved AV and reduced plasma leptin concentrations. No differences were seen between groups in terms of TNF-α, IL-6 or CRP reduction. This trial was registered at clinical trials.gov as NCT01116856. http://clinicaltrials.gov/.
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Affiliation(s)
- Viviana Loria-Kohen
- Nutrition Department, La Paz University Hospital, Health Research Institute IdiPAZ, Paseo de la Castellana 268, 28043 Madrid, Spain.
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Jung TS, Kim SK, Shin HJ, Jeon BT, Hahm JR, Roh GS. α-lipoic acid prevents non-alcoholic fatty liver disease in OLETF rats. Liver Int 2012; 32:1565-73. [PMID: 22863080 DOI: 10.1111/j.1478-3231.2012.02857.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 07/02/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND Insulin resistance, oxidative stress, inflammation and innate immune system activation contribute to the development of non-alcoholic fatty liver disease (NAFLD) through steatosis and inflammation in the liver. The powerful antioxidant α-lipoic acid (ALA) has been shown to improve insulin sensitivity and suppress inflammatory responses. This study explores how ALA administration protects against NAFLD. METHODS Otsuka Long-Evans Tokushima Fatty (OLETF) rats were divided into two groups (treated with 200 mg/kg/day of ALA or untreated) at 12 weeks of age and sacrificed at 28 weeks of age. RESULTS Serum levels of insulin, free fatty acids, total cholesterol, triglyceride, leptin, IL-6 and blood glucose were decreased in ALA-treated rats. Serum adiponectin levels were higher in ALA-treated rats. ALA treatment decreased the expression of sterol regulatory element binding protein-1 and acetyl CoA carboxylase, and increased glucose transporter-4 expression in the livers of OLETF rats. Expression of the antioxidant enzymes heme oxygenase-1 and Cu/Zn-superoxide dismutase was increased in the livers of ALA-treated rats. The lipid peroxidation marker 4-hydroxynonenal was decreased in the liver of ALA-treated rats. Proteins associated with innate immune activation (Toll-like receptor-4 and high-mobility group protein box-1) and inflammatory markers (vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and cyclooxygenase-2) were decreased in the livers of ALA-treated rats. CONCLUSIONS Chronic ALA supplementation prevents NAFLD through multiple mechanisms by reducing steatosis, oxidative stress, immune activation and inflammation in the liver.
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Affiliation(s)
- Tae Sik Jung
- Department of Internal Medicine, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, Republic of Korea
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Xue R, Wang Y, Cao G, Pan Z, Zheng X, Zhou W, Gong C. Lowering the blood glucose of diabetes mellitus mice by oral administration with transgenic human insulin-like growth factor I silkworms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:6559-6564. [PMID: 22681458 DOI: 10.1021/jf300794h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
To evaluate the biological activity of the posterior silk glands of transgenic silkworms expressing human insulin-like growth factor I (hIGF-I), we bred hIGF-I-transgenic silkworms through eight generations by continuously selecting with green fluorescence and G418. The G8 transgenic silkworms were confirmed by polymerase chain reaction and dot blotting, and their posterior silk glands were removed from the fifth instar larvae to make freeze-dried powders. Enzyme-linked immunosorbent assay results showed that the expression level of hIGF-I in the posterior silk glands of G8 transgenic silkworm is approximately 493 ng/g of freeze-dried powder. When the freeze-dried powder was administrated by gavage to diabetes mellitus (DM) mice, the blood glucose in DM mice significantly decreased (P < 0.05) in a time- and dose-dependent manner compared with that of DM mice orally administrated with distilled water and normal freeze-dried powders made of untreated silk glands. These results demonstrated that hIGF-I expressed in posterior silk glands of transgenic silkworms could reduce blood glucose by oral administration.
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Affiliation(s)
- Renyu Xue
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
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Pardina E, Ferrer R, Rivero J, Baena-Fustegueras JA, Lecube A, Fort JM, Vargas V, Catalán R, Peinado-Onsurbe J. Alterations in the common pathway of coagulation during weight loss induced by gastric bypass in severely obese patients. Obesity (Silver Spring) 2012; 20:1048-56. [PMID: 22193919 DOI: 10.1038/oby.2011.361] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The objective of this study was to establish the relationship between the plasminogen activator inhibitor-1 (PAI-1), antithrombin-III (ATIII), fibrinogen, and white blood cell (WBC) levels in severely obese patients. We analyzed various plasma parameters implicated in the intrinsic and extrinsic coagulation pathway from 34 severely obese patients before and 1, 6, and 12 months after gastric bypass. In obese people, ATIII, fibrinogen, and WBC levels were in the upper limit of the normal range, and all were higher and significantly different from nonobese people. After bariatric surgery, the ATIII level continued to be high during the first month and increased until 12 months, while fibrinogen decreased only at that time. PAI-1 plasma protein and PAI-1 mRNA levels in liver and adipose tissue show similar profiles and had a strong positive correlation (r = 0.576, P = 0.0003 in liver; r = 0.433, P = 0.0004 in adipose tissue). They were higher in obese patients compared with nonobese control, but tended to recover normal values 1 month after surgery. Thus, the liver and adipose tissue could be an important source of PAI-1 protein in plasma. Gastric bypass surgery leads to a normalization of the hematological profile and a decrease in PAI-1 levels, which entails a decrease of risk for thromboembolism in severely obese.
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Affiliation(s)
- Eva Pardina
- Biochemistry and Molecular Biology Department, Biology Faculty, Barcelona University, Barcelona, Spain
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Tvarijonaviciute A, Ceron JJ, Holden SL, Morris PJ, Biourge V, German AJ. Effects of weight loss in obese cats on biochemical analytes related to inflammation and glucose homeostasis. Domest Anim Endocrinol 2012; 42:129-41. [PMID: 22177629 DOI: 10.1016/j.domaniend.2011.10.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 10/23/2011] [Accepted: 10/25/2011] [Indexed: 01/10/2023]
Abstract
The aim of the current study was to measure circulating metabolic and inflammation-related biochemical analytes in obese cats before and after weight loss. Thirty-seven overweight neutered cats were studied, median body weight 6.85 kg (range, 4.70 to 10.30 kg), representing a range of ages and both sexes. An individualized weight-loss program was devised for each cat and monitored until completion. Body fat mass was determined by dual-energy x-ray absorptiometry, whereas plasma concentrations of acute-phase proteins (APPs; eg, haptoglobin and serum amyloid A), hormones (eg, insulin, IGF-1, and adiponectin), and enzymes (eg, butyrylcholinesterase and paraoxonase type 1 [PON-1]) associated with inflammation and metabolic compounds (eg, glucose) were also measured. No significant changes were found in APPs after weight loss (P > 0.3), but significant increases in plasma adiponectin (P = 0.021) and IGF-1 (P = 0.036) were seen, whereas insulin (P < 0.001) and homeostasis model assessment (P = 0.005) decreased significantly. Plasma concentrations before weight loss of PON-1 (P = 0.004), adiponectin (P = 0.02), and IGF-1 (P = 0.048) were less in cats that failed to complete weight loss than cats that were successful, whereas glucose concentration was greater. Finally, multivariable linear regression analysis showed that lean tissue loss during weight management was associated with percentage weight loss (greater weight loss, greater lean tissue loss; R = 0.71, P < 0.001) and plasma adiponectin concentration before weight loss (lesser adiponectin, more lean tissue loss; R = -0.52, P = 0.023). In conclusion, various metabolic abnormalities occur in feline obesity, and these can be linked to outcomes of weight-loss programs. The changes that occur with weight loss suggest an improved metabolic status.
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Affiliation(s)
- A Tvarijonaviciute
- Department of Animal Medicine and Surgery, Veterinary School, University of Murcia, 30100 Murcia, Spain
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Tvarijonaviciute A, German AJ, Martínez-Subiela S, Tecles F, Ceron JJ. Analytical performance of commercially-available assays for feline insulin-like growth factor 1 (IGF-1), adiponectin and ghrelin measurements. J Feline Med Surg 2012; 14:138-46. [PMID: 22314090 PMCID: PMC10822485 DOI: 10.1177/1098612x11432236] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
The objective of this study was to evaluate three commercially-available human assays for the determination of adiponectin, ghrelin and insulin-like growth factor 1 (IGF-1) concentrations in feline serum samples. Intra- and interassay coefficients of variation were lower than 20%, 15% and 6% for adiponectin, ghrelin and IGF-1 assays, respectively. Dilutions of feline serum pools resulted in linear regression equations in all kits. Mean recovery of adiponectin, ghrelin and IGF-1 assays were 107%, 102% and 105%, respectively. Significant differences were detected in adiponectin and ghrelin concentrations between lean and obese cats (P <0.05 in both cases), but there was no difference in IGF-1 concentrations (P = 0.12).
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Affiliation(s)
- Asta Tvarijonaviciute
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine University of Murcia, Spain
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Abstract
The clinical outcomes achieved by bariatric surgery have been impressive. However, the physiologic mechanisms and complex metabolic effects of bariatric surgery are only now beginning to be understood. Ongoing research has contributed a large amount of data and shed new light on the science behind obesity and its treatment, and this article reviews the current understanding of metabolic and bariatric surgery physiology.
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Affiliation(s)
- Chan W Park
- Duke Endosurgery, Department of Surgery, Duke University, DUMC 3351, Duke University Medical Center, Durham, NC 27713, USA
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Loria-Kohen V, Gómez-Candela C, Fernández-Fernández C, Pérez-Torres A, García-Puig J, Bermejo LM. Evaluation of the usefulness of a low-calorie diet with or without bread in the treatment of overweight/obesity. Clin Nutr 2012; 31:455-61. [PMID: 22209501 DOI: 10.1016/j.clnu.2011.12.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 11/18/2011] [Accepted: 12/04/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Despite the lack of scientific evidence, bread is one of the most restricted foods in popular hypocaloric diets. The aim of this study was to compare two nutrition strategies (with or without bread) designed to promote weight loss in overweight/obese women. METHODS A clinical, prospective and randomised study in which 122 women >18 years, BMI ≥ 25 < 40 kg/m(2) were divided into two groups: intervention group (BREAD, n = 61) and control group (NO BREAD, n = 61). Both groups received a low-calorie diet (with or without bread), nutrition education and physical activity guidelines, and were monitored for 16 weeks. RESULTS 104 women completed the study (48.4 ± 9 years, 29.8 ± 3.5 kg/m(2)). Anthropometric and biochemical markers improved after the intervention without significant differences between groups. BREAD group significantly increased total cereal consumption (3.2 ± 1.3 to 3.7 ± 0.5 servings/day, P < 0.05) and the percentage of energy from carbohydrates (41.2 ± 6.4 vs. 45.9 ± 5.0% P < 0.001) and reduced fat (39.0 ± 6.6 vs. 32.7 ± 5.1% P < 0.001). In contrast, NO BREAD group increased the discrepancy with recommended consumption. NO BREAD group had the most dropouts (21.3% vs. 6.6%, P < 0.05). CONCLUSION The bread inclusion in a low-calorie diet designed for weight loss favoured a better evolution of dietetic parameters and greater compliance with the diet with fewer dropouts. Registered under ClinicalTrials.gov Identifier no. NCT01223989.
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Affiliation(s)
- Viviana Loria-Kohen
- Nutrition Department, La Paz University Hospital, Paseo de la Castellana 261, Health Research Institute IdiPAZ, 28046 Madrid Spain.
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