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Resistin: Potential biomarker and therapeutic target in atherosclerosis. Clin Chim Acta 2020; 512:84-91. [PMID: 33248946 DOI: 10.1016/j.cca.2020.11.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/12/2022]
Abstract
Resistin, a cysteine-rich secretory protein, has a pleiotropic role in humans. Resistin usually presents as trimer or hexamer in plasma, and targets specific receptors Toll Like Receptor 4 (TLR4) or Adenylyl Cyclase-Associated Protein 1 (CAP1). Upon binding to TLR4 and CAP1, resistin can trigger various intracellular signal transduction pathways to induce vascular inflammation, lipid accumulation, and plaque vulnerability. These pro-atherosclerotic effects of resistin appear in various cell types, including endothelial cells, vessel smooth muscle cells and macrophages, which cause diverse damages to cardiovascular system from dyslipidemia, atherosclerosis rupture and ventricular remodeling. In this review, we gather recent evidence about the pro- atherosclerotic effects of resistin and highlight it as a candidate therapeutic or diagnostic target for cardiovascular disease.
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Ibrahim SM, Bastawy AA. The Relevance of Single-nucleotide Polymorphism +62 G>A to the Expression of Resistin Gene Affecting Serum Resistin Levels in Metabolic Syndrome in the Egyptian Population. Curr Pharm Biotechnol 2019; 21:626-634. [PMID: 31820685 DOI: 10.2174/1389201021666191210122851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Metabolic Syndrome (MS) is a clinical condition consisting of risk factors associated with type two diabetes and developing cardiovascular disease. It has been suggested that resistin is a linkage between obesity, inflammation and type two diabetes. This study aims to investigate whether Resistin Gene (RETN) polymorphism (+62G>A) is linked to MS and resistin levels among the Egyptian population. METHODS This study was performed with 310 Egyptian volunteers: 160 MS subjects and 150 controls. Anthropometric parameters and biochemical variables were determined. The RETN +62G>A polymorphism was genotyped by PCR-RFLP technique. RESULTS The resistin levels of the MS group were significantly higher than those of the control group. Resistin levels were positively correlated with anthropometric parameters and liver biomarkers in the MS group. According to RETN +62G>A polymorphism, carriers with the A allele (GA/AA) had significantly increased resistin levels than subjects with the GG genotype, consequently, the RETN +62G >A polymorphism was found to be related to MS, biochemical parameters and anthropometric variables. CONCLUSION These findings propose that the RETN +62G>A polymorphism has a great impact on the circulating resistin concentrations, and that resistin levels are strongly related to MS. Therefore, this RETN polymorphism is related to the risk of the prevalence of MS in the Egyptians.
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Affiliation(s)
- Sherine M Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Modern Sciences and Arts University, Postal Code: 202, Cairo, Egypt
| | - Afaf A Bastawy
- Biochemistry Department, Faculty of Pharmacy, Modern Sciences and Arts University, Postal Code: 202, Cairo, Egypt
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Xu G, Fan G, Sun Y, Yu L, Wu S, Niu W. Association of angiotensin-converting enzyme gene I/D polymorphism with chronic obstructive pulmonary disease: a meta-analysis. J Renin Angiotensin Aldosterone Syst 2018; 19:1470320318770546. [PMID: 29716409 PMCID: PMC5954319 DOI: 10.1177/1470320318770546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives: We conducted a meta-analysis of published studies on the
angiotensin-converting enzyme (ACE) gene insertion/deletion
(I/D) polymorphism associated with the risk of chronic obstructive pulmonary
disease, as well as with pulmonary function and circulating
angiotensin-converting enzyme changes. Methods: A literature search, quality assessment and data extraction were completed
independently and in duplicate. Results: A total of 16 articles were meta-analysed, including 12 articles (2113
patients and 8786 controls) for chronic obstructive pulmonary disease risk
and eight articles (11,664 subjects) for pulmonary and circulating
phenotypes. In overall and subgroup analyses, no significance was noted
between the I/D polymorphism and chronic obstructive pulmonary disease risk
under all genetic models (P>0.05), without heterogeneity
or publication bias. Carriers of II, ID and II plus ID genotypes had
significantly lower levels of circulating angiotensin-converting enzyme than
those with the DD genotype (weighted mean difference −13.35, −8.13 and
−10.74 U/L, respectively, P<0.001). For forced
expiratory volume in one second (FEV1)/forced vital capacity,
carriers of the DD genotype had marginally lower levels than those with the
DD genotype (weighted mean difference –1.66, P=0.034).
Furthermore in the case of FEV1 of 50% or greater of predicted
FEV1, FEV1 was marginally lower in ID genotype
carriers than DD genotype carriers (weighted mean difference −3.50,
P=0.056). Conclusions: Our meta-analytical findings demonstrated that the ACE gene
I/D polymorphism was not associated with the risk of chronic obstructive
pulmonary disease.
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Affiliation(s)
- Guodong Xu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, China
| | - Guohui Fan
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, China
| | - Yingtong Sun
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, China
| | - Lili Yu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, China
| | - Sinan Wu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, China
| | - Wenquan Niu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, China
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Li HM, Zhang TP, Li XM, Pan HF, Ma DC. Association of single nucleotide polymorphisms in resistin gene with rheumatoid arthritis in a Chinese population. J Clin Lab Anal 2018; 32:e22595. [PMID: 29978502 DOI: 10.1002/jcla.22595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 05/31/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Recent evidences have revealed that resistin is associated with the development of rheumatoid arthritis (RA). The aim of this study was to analyze the association of resistin gene single nucleotide polymorphisms (SNPs) with RA susceptibility. METHODS In this study, we finally analyzed three resistin SNPs (rs1862513, rs3745368, and rs3745367) in 278 RA patients and 276 normal controls recruited from Chinese population using TaqMan SNP genotyping assays. RESULTS There were no significant differences for the distribution of allele and genotype frequencies of these three SNPs between RA patients and normal controls (all P > .05). The genotype effects of dominant, recessive models were also analyzed, and no significant association was detected (all P > .05). Haplotype analysis suggested that the frequency of haplotype GAA was notably lower in RA patients in comparison with normal controls (OR = 0.317, 95% CI: 0.125-0.807, P = .011). CONCLUSION In a ward, our results indicated that resistin gene polymorphisms might affect the genetic predisposition of RA in Chinese population.
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Affiliation(s)
- Hong-Miao Li
- Anhui Provincial TB Institute, Hefei, Anhui, China
| | - Tian-Ping Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Mei Li
- Department of Rheumatology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Dong-Chun Ma
- Anhui Provincial TB Institute, Hefei, Anhui, China
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Bouziana SD, Tziomalos K, Goulas A, Vyzantiadis TA, Panderi A, Ηatzitolios AΙ. Major Adipokines and the −420C>G Resistin Gene Polymorphism as Predictors of Acute Ischemic Stroke Severity and In-Hospital Outcome. J Stroke Cerebrovasc Dis 2018; 27:963-970. [DOI: 10.1016/j.jstrokecerebrovasdis.2017.10.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 09/26/2017] [Accepted: 10/31/2017] [Indexed: 12/14/2022] Open
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Association between Two Resistin Gene Polymorphisms and Metabolic Syndrome in Jilin, Northeast China: A Case-Control Study. DISEASE MARKERS 2018; 2017:1638769. [PMID: 29386698 PMCID: PMC5745751 DOI: 10.1155/2017/1638769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/17/2017] [Accepted: 10/30/2017] [Indexed: 12/12/2022]
Abstract
Metabolic syndrome (MetS) is a significant health care problem worldwide and is characterized by increased fasting glucose and obesity. Resistin is a protein hormone produced both by adipocytes and immunocompetent cells, including those residing in adipose tissue, and is believed to modulate glucose tolerance and insulin action. This study examined the association of resistin gene polymorphisms, rs1862513 and rs3745368, and related haplotypes with the development of metabolic syndrome in a Han Chinese population. This case-control study was performed on 3792 subjects, including 1771 MetS cases and 2021 healthy controls from the Jilin province of China. Metabolic syndrome was defined according to the criteria of the International Diabetes Federation (IDF). Logistic regression analysis was used to estimate the relationship between gene polymorphism and MetS. Our results showed that there were no significant associations between MetS and the genotype distributions in four kinds of inheritance models, allele frequencies, and related haplotypes of resistin gene polymorphisms rs1862513 and rs3745368 (all p values > 0.05). Based on our study findings, we concluded that mutations in resistin genes are not associated with the presence of MetS in a Han Chinese population from Jilin province in China.
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de Luis DA, Izaola O, Primo D, de la Fuente B, Mulero I, Aller R. The rs1862513 Variant in Resistin Gene-Modified Insulin Resistance and Insulin Levels after Weight Loss Secondary to Hypocaloric Diet. ANNALS OF NUTRITION AND METABOLISM 2017; 69:256-262. [PMID: 28064279 DOI: 10.1159/000453676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/21/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Polymorphisms of a single nucleotide in RETN have been associated with indexes of insulin resistance. Our aim was to analyze the effects of the rs1862513 RETN gene polymorphism on insulin resistance, insulin levels, and resistin levels changes after 3 months of a low-fat hypocaloric diet. DESIGN A Caucasian population of 133 obese patients was analyzed before and after 3 months on a low-fat hypocaloric diet. RESULTS Fifty-six patients (42.1%) had the genotype GG (wild group) and 77 (57.9%) patients had the other genotypes; GC (59 patients, 44.4%) or CC (18 patients, 13.5%; mutant group). In wild and mutant genotype groups, weight, body mass index, fat mass, waist circumference, and systolic blood pressure decreased. In the wild genotype group, the decrease in total cholesterol was -13.1 ± 25.3 mg/dL (vs. -4.4 ± 13.7 mg/dL in mutant group: p = 0.004 for group deltas), low density lipoprotein (LDL)-cholesterol was -13.0 ± 21.5 mg/dL (-4.3 ± 10.5 mg/dL: p = 0.007), glucose -7.2 ± 3.5 mg/dL (-0.8 ± 0.2 mg/dL: p = 0.01), insulin -5.6 ± 2.5 mUI/L (-2.9 ± 1.2 mUI/L: p = 0.03) and homeostasis model assessment-insulin resistance (HOMA-IR) -2.5 ± 1.1 (-0.6 ± 1.4: p = 0.02). Leptin levels decreased in both genotypes (-10.1 ± 9.5 ng/dL in wild type group vs. -13.1 ± 0.2 ng/dL in mutant type group: p > 0.05). CONCLUSION The present study suggests that the G/G genotype of RETN rs1862513 could be a predictor of the reduction of HOMA-IR, insulin, fasting glucose and LDL cholesterol secondary to a hypocaloric diet in obese subjects.
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Affiliation(s)
- Daniel Antonio de Luis
- Center of Investigation of Endocrinology and Nutrition, Medicine School and Department of Endocrinology and Nutrition Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain
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Machado-Vieira R, Gold PW, Luckenbaugh DA, Ballard ED, Richards EM, Henter ID, De Sousa RT, Niciu MJ, Yuan P, Zarate CA. The role of adipokines in the rapid antidepressant effects of ketamine. Mol Psychiatry 2017; 22:127-133. [PMID: 27046644 PMCID: PMC5112162 DOI: 10.1038/mp.2016.36] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 01/21/2016] [Accepted: 02/12/2016] [Indexed: 12/17/2022]
Abstract
We previously found that body mass index (BMI) strongly predicted response to ketamine. Adipokines have a key role in metabolism (including BMI). They directly regulate inflammation and neuroplasticity pathways and also influence insulin sensitivity, bone metabolism and sympathetic outflow; all of these have been implicated in mood disorders. Here, we sought to examine the role of three key adipokines-adiponectin, resistin and leptin-as potential predictors of response to ketamine or as possible transducers of its therapeutic effects. Eighty treatment-resistant subjects who met DSM-IV criteria for either major depressive disorder (MDD) or bipolar disorder I/II and who were currently experiencing a major depressive episode received a single ketamine infusion (0.5 mg kg-1 for 40 min). Plasma adipokine levels were measured at three time points (pre-infusion baseline, 230 min post infusion and day 1 post infusion). Overall improvement and response were assessed using percent change from baseline on the Montgomery-Asberg Depression Rating Scale and the Hamilton Depression Rating Scale. Lower baseline levels of adiponectin significantly predicted ketamine's antidepressant efficacy, suggesting an adverse metabolic state. Because adiponectin significantly improves insulin sensitivity and has potent anti-inflammatory effects, this finding suggests that specific systemic abnormalities might predict positive response to ketamine. A ketamine-induced decrease in resistin was also observed; because resistin is a potent pro-inflammatory compound, this decrease suggests that ketamine's anti-inflammatory effects may be transduced, in part, by its impact on resistin. Overall, the findings suggest that adipokines may either predict response to ketamine or have a role in its possible therapeutic effects.
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Affiliation(s)
- R Machado-Vieira
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - PW Gold
- Clinical Neuroendocrinology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - DA Luckenbaugh
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - ED Ballard
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - EM Richards
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - ID Henter
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - RT De Sousa
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - MJ Niciu
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - P Yuan
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - CA Zarate
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
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Nascimento H, Vieira E, Coimbra S, Catarino C, Costa E, Bronze-da-Rocha E, Rocha-Pereira P, Carvalho M, Ferreira Mansilha H, Rêgo C, Dos Santos R, Santos-Silva A, Belo L. Adipokine Gene Single-Nucleotide Polymorphisms in Portuguese Obese Adolescents: Associations with Plasma Concentrations of Adiponectin, Resistin, IL-6, IL-1β, and TNF-α. Child Obes 2016; 12:300-13. [PMID: 27159547 DOI: 10.1089/chi.2015.0235] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND The genetic contribution to obesity and to circulating adipokine levels has not been completely clarified. We aimed to evaluate adipokine genes' single-nucleotide polymorphism (SNP) prevalence and its association with circulating adipokine levels and risk factors for cardiovascular disease in an obese Portuguese pediatric population. METHODS Two hundred forty-eight obese adolescents (mean age 13.4 years old; 47.2% females) participated in a cohort study. We screened 12 SNPs by direct sequencing in five adipokine genes: adiponectin (ADIPOQ: rs16861194, rs17300539, rs266729, rs2241766, rs1501299), interleukin-1β (IL-1β; rs1143627), IL-6 (IL-6; rs1800795), tumor necrosis factor-α (TNF-α; rs1800629), and resistin (RETN; rs1862513, rs3219177, rs3745367, rs3745368). Biochemical analysis included determination of circulating adipokines, C-reactive protein (CRP) levels, lipid profile, and markers of insulin resistance. RESULTS Compared to males, females presented higher circulating levels of insulin, adiponectin, IL-6, resistin, and leptin concentrations, but lower TNF-α levels. No statistically significant differences were found for genotype or allelic distributions between genders. In the whole sample population, adiponectin levels were influenced by ADIPOQ rs17300539 (c.-1138G>A; lower in subjects with GG genotype). When only males were considered, IL-1β, IL-6, and TNF-α levels were associated with ADIPOQ rs1501299 (c.214 + 62G>T; higher in GG subjects). TNF-α concentrations were modulated by TNF-α rs1800629 (c.-488G>A; lower in GG males), RETN rs1862513 (c.-216C>G; higher in CC subjects), and RETN rs3219177 (c.118 + 39C>T; higher in CC subjects). Leptin levels were influenced by IL-1β rs1143627 (c.-118C>T) presenting TT individuals' lower levels. CONCLUSIONS Our data demonstrate that in pediatric obese patients, some adipokine gene SNPs have an association with circulating adipokine levels and lipid profile.
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Affiliation(s)
- Henrique Nascimento
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Emília Vieira
- 4 Molecular Genetics Unit, Medical Genetics Center Dr. Jacinto de Magalhães , Porto Hospital Centre, Porto, Portugal
| | - Susana Coimbra
- 3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal .,5 CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS) , Gandra-PRD, Portugal
| | - Cristina Catarino
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Elísio Costa
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Elsa Bronze-da-Rocha
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | | | - Márcia Carvalho
- 7 FP-ENAS, CEBIMED, Fundação Ensino e Cultura Fernando Pessoa , Porto, Portugal
| | - Helena Ferreira Mansilha
- 8 Childhood and Adolescence Department of CMIN (Centro Materno-Infantil do Norte), Porto Hospital Centre, ICBAS (Instituto de Ciências Biomédicas Abel Salazar), University of Porto , Porto, Portugal
| | - Carla Rêgo
- 9 Children and Adolescent Centre, CUF Hospital, Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto , Porto, Portugal
| | - Rosário Dos Santos
- 4 Molecular Genetics Unit, Medical Genetics Center Dr. Jacinto de Magalhães , Porto Hospital Centre, Porto, Portugal
| | - Alice Santos-Silva
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Luís Belo
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
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Huang X, Yang Z. Resistin's, obesity and insulin resistance: the continuing disconnect between rodents and humans. J Endocrinol Invest 2016; 39:607-15. [PMID: 26662574 DOI: 10.1007/s40618-015-0408-2] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/24/2015] [Indexed: 02/07/2023]
Abstract
PURPOSE This review aimed to discuss the conflicting findings from resistin research in rodents and humans as well as recent advances in our understanding of resistin's role in obesity and insulin resistance. METHODS A comprehensive review and synthesis of resistin's role in obesity and insulin resistance as well as conflicting findings from resistin research in rodents and humans. RESULTS In rodents, resistin is increased in high-fat/high-carbohydrate-fed, obese states characterized by impaired glucose uptake and insulin sensitivity. Resistin plays a causative role in the development of insulin resistance in rodents via 5' AMP-activated protein kinase (AMPK)-dependent and AMPK-independent suppressor of cytokine signaling-3 (SOCS-3) signaling. In contrast to rodents, human resistin is primarily secreted by peripheral-blood mononuclear cells (PBMCs) as opposed to white adipocytes. Circulating resistin levels have been positively associated with central/visceral obesity (but not BMI) as well as insulin resistance, while other studies show no such association. Human resistin has a role in pro-inflammatory processes that have been conclusively associated with obesity and insulin resistance. PBMCs, as well as vascular cells, have been identified as the primary targets of resistin's pro-inflammatory activity via nuclear factor-κB (NF-κB, p50/p65) and other signaling pathways. CONCLUSION Mounting evidence reveals a continuing disconnect between resistin's role in rodents and humans due to significant differences between these two species with respect to resistin's gene and protein structure, differential gene regulation, tissue-specific distribution, and insulin resistance induction as well as a paucity of evidence regarding the resistin receptor and downstream signaling mechanisms of action.
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Affiliation(s)
- X Huang
- Department of Radiology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
- Department of Internal Medicine, Hechuan Hospital of First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Z Yang
- Department of Internal Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Bouziana S, Tziomalos K, Goulas A, Ηatzitolios AΙ. The role of adipokines in ischemic stroke risk stratification. Int J Stroke 2016; 11:389-98. [DOI: 10.1177/1747493016632249] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/09/2015] [Indexed: 11/15/2022]
Abstract
Background Adiponectin, leptin, and resistin are the most well-studied adipokines and play important roles in the regulation of glucose metabolism, subclinical inflammation, and cardiovascular homeostasis. Accordingly, measurement of adipokine levels might be useful in cardiovascular risk stratification. Moreover, the study of single-nucleotide polymorphisms of genes that encode these adipokines might also represent a valuable predictive tool in cardiovascular disease prevention strategies. Aims To summarize the biologic role of the adipokines adiponectin, leptin, and resistin and the prognostic value of their serum levels regarding the occurrence and outcome of ischemic stroke. We also discuss the relationship of single-nucleotide polymorphisms of the adiponectin, leptin genes, and the −420C > G polymorphism of resistin gene with stroke risk. Summary of review Several studies in the general population evaluated the association between these adipokines and stroke risk, yielding conflicting results. There are more limited data regarding the effect of these adipokines on stroke severity and outcome. A small number of studies also assessed the predictive role of single-nucleotide polymorphisms of the adiponectin, leptin, and resistin genes regarding stroke risk, but the findings were also controversial. Conclusions It is unclear whether adiponectin, leptin, and resistin levels or the single-nucleotide polymorphisms of their encoding genes are independently associated with stroke risk. However, given the role of these adipokines in the pathogenesis of atherosclerosis, larger prospective studies, both in the general population and in patients with a history of stroke, are needed to determine whether the measurement of serum levels of these adipokines or the evaluation of single-nucleotide polymorphisms in their encoding genes could improve stroke risk prediction. If this relationship is proven, therapeutic interventions targeting adipokine levels might represent a novel approach to reduce stroke-related mortality and disability.
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Affiliation(s)
- Styliani Bouziana
- First Propedeutic Department of Internal Medicine, AHEPA Hospital, Thessaloniki, Greece
| | | | - Antonios Goulas
- Department of Medicine, First Laboratory of Pharmacology, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Robberecht H, Hermans N. Biomarkers of Metabolic Syndrome: Biochemical Background and Clinical Significance. Metab Syndr Relat Disord 2016; 14:47-93. [PMID: 26808223 DOI: 10.1089/met.2015.0113] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Biomarkers of the metabolic syndrome are divided into four subgroups. Although dividing them in groups has some limitations, it can be used to draw some conclusions. In a first part, the dyslipidemias and markers of oxidative stress are discussed, while inflammatory markers and cardiometabolic biomarkers are reviewed in a second part. For most of them, the biochemical background and clinical significance are discussed, although here also a well-cut separation cannot always be made. Altered levels cannot always be claimed as the cause, risk, or consequence of the syndrome. Several factors are interrelated to each other and act in a concerted, antagonistic, synergistic, or modulating way. Most important conclusions are summarized at the end of every reviewed subgroup. Genetic biomarkers or influences of various food components on concentration levels are not included in this review article.
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Affiliation(s)
- Harry Robberecht
- Department of Pharmaceutical Sciences, NatuRA (Natural Products and Food Research and Analysis), University of Antwerp , Wilrijk, Antwerp, Belgium
| | - Nina Hermans
- Department of Pharmaceutical Sciences, NatuRA (Natural Products and Food Research and Analysis), University of Antwerp , Wilrijk, Antwerp, Belgium
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Associations of Resistin Levels with Resistin Gene Polymorphism and Metabolic Syndrome in Thais. J Med Biochem 2015; 34:170-178. [PMID: 28356829 PMCID: PMC4922327 DOI: 10.2478/jomb-2014-0034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 02/14/2014] [Indexed: 01/14/2023] Open
Abstract
Background Metabolic syndrome (MS) is a clinical constellation comprising risk factors associated with developing cardiovascular disease and type 2 diabetes. Resistin has been suggested as a linkage between obesity, inflammation and type 2 diabetes. This study aimed to investigate resistin concentrations and hematological-biochemical parameters in MS subjects and controls, and to determine whether two resistin gene (RETN) polymorphisms (−420C>G & +299G>A) are linked to resistin levels and MS among Thais. Methods This case-control study was performed with 322 Thai volunteers: 160 MS subjects and 162 controls. Anthropometric parameters and hematological-biochemical variables were determined. The RETN −420C>G (rs1862513) and +299G>A (rs3745367) polymorphisms were genotyped by PCR-RFLP technique. Results The resistin levels of the MS group were significantly higher than those of the control group. Resistin levels were positively correlated with anthropometric parameters and WBC count in the MS group. According to RETN −420C>G polymorphism, MS subjects with the G allele (CG/GG) (3.9 μg/L) had significantly higher resistin concentrations than in subjects with the CC genotype (2.4 μg/L); with regard to RETN +299G>A polymorphism, carriers with the A allele (GA/AA) (3.8 μg/L) had significantly higher resistin levels than subjects with the GG genotype (2.7 μg/L), after adjusting for potential covariates. However, the RETN −420C>G and +299G>A polymorphisms were not found to be associated with MS, hematological-biochemical parameters and anthropometric variables. Conclusions These findings suggest resistin levels are linked with MS and the RETN −420C>G and +299G>A polymorphisms have impacted the circulating resistin concentrations. However, these two RETN polymorphisms probably do not influence susceptibility to MS among Thais.
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Muse ED, Feldman DI, Blaha MJ, Dardari ZA, Blumenthal RS, Budoff MJ, Nasir K, Criqui MH, Cushman M, McClelland RL, Allison MA. The association of resistin with cardiovascular disease in the Multi-Ethnic Study of Atherosclerosis. Atherosclerosis 2015; 239:101-8. [PMID: 25585029 PMCID: PMC4331252 DOI: 10.1016/j.atherosclerosis.2014.12.044] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 12/09/2014] [Accepted: 12/19/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To describe the relationship between circulating resistin levels and cardiovascular diseases (CVD) and all-cause death in a multi-ethnic cohort. METHODS AND RESULTS We studied 1913 participants from the Multi-Ethnic Study of Atherosclerosis with measurements of plasma resistin levels. Absolute proportions experiencing new-onset atrial fibrillation (AF), atherosclerotic CVD (myocardial infarction, angina, resuscitated cardiac arrest, stroke), heart failure (HF), and all-cause death were calculated for each quartile of resistin. We used adjusted Cox proportional regression modeling resistin as a continuous variable per standard deviation of log-transformed resistin and secondarily as a categorical variable using resistin quartiles. Results were stratified by sex and race/ethnicity. The mean age of the population was 64.5 ± 10 years with half being female and a median resistin concentration of 15.1 ng/mL (11.9-19.1). Mean follow-up time was 7.2 ± 1.8 years. There was a graded increase in the occurrence of all outcomes across increasing quartiles of resistin. Modeled as a continuous variable, after adjustment for anthropomorphic measures, traditional risk factors, markers of inflammation, and other adipokines, significant associations were noted for HF (HR 1.4, CI 1.0-2.0), hard and all CVD (HR 1.3, 1.1-1.7 and 1.3, 1.1-1.6, respectively), and CHD (HR 1.31, 1.0-1.6), but not for AF or death. Significant interaction terms were noted between resistin and race, with Hispanic race/ethnicity showing the strongest relationship between resistin and outcomes. CONCLUSIONS In an ethnically diverse population without known CVD at baseline, there was a strong, independent association between higher resistin levels and incident CVD, CHD and HF.
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Affiliation(s)
- Evan D Muse
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA; Scripps Translational Science Institute, The Scripps Research Institute, La Jolla, CA, USA.
| | - David I Feldman
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Zeina A Dardari
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Roger S Blumenthal
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Matthew J Budoff
- Division of Cardiology, Harbor-UCLA Medical Center, Los Angeles, CA, USA
| | - Khurram Nasir
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA; Center for Prevention and Wellness Research, Baptist Health Medical Group, Miami, FL, USA
| | - Michael H Criqui
- Department of Family and Preventive Medicine, University of California San Diego, San Diego, CA, USA
| | - Mary Cushman
- Department of Medicine, University of Vermont, Burlington, VT, USA
| | | | - Matthew A Allison
- Department of Family and Preventive Medicine, University of California San Diego, San Diego, CA, USA
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Abstract
Obesity is characterized by excess accumulation of lipids in adipose tissue and other organs, and chronic inflammation associated with insulin resistance and an increased risk of type 2 diabetes. Obesity, type 2 diabetes, and cardiovascular diseases are major health concerns. Resistin was first discovered as an adipose-secreted hormone (adipokine) linked to obesity and insulin resistance in rodents. Adipocyte-derived resistin is increased in obese rodents and strongly related to insulin resistance. However, in contrast to rodents, resistin is expressed and secreted from macrophages in humans and is increased in inflammatory conditions. Some studies have also suggested an association between increased resistin levels and insulin resistance, diabetes and cardiovascular disease. Genetic studies have provided additional evidence for a role of resistin in insulin resistance and inflammation. Resistin appears to mediate the pathogenesis of atherosclerosis by promoting endothelial dysfunction, vascular smooth muscle cell proliferation, arterial inflammation, and formation of foam cells. Indeed, resistin is predictive of atherosclerosis and poor clinical outcomes in patients with coronary artery disease and ischemic stroke. There is also growing evidence that elevated resistin is associated with the development of heart failure. This review will focus on the biology of resistin in rodents and humans, and evidence linking resistin with type 2 diabetes, atherosclerosis, and cardiovascular disease.
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Affiliation(s)
- Hyeong Kyu Park
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Rexford S. Ahima
- Division of Endocrinology, Diabetes and Metabolism, and the Institute for Diabetes, Obesity and Metabolism, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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16
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Patel SP, Raju PA. Resistin in serum and gingival crevicular fluid as a marker of periodontal inflammation and its correlation with single-nucleotide polymorphism in human resistin gene at -420. Contemp Clin Dent 2013; 4:192-7. [PMID: 24015008 PMCID: PMC3757881 DOI: 10.4103/0976-237x.114878] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
AIMS Resistin is an adipocytokine, which have been studied for its role in insulin resistance and recently in inflammation. The aim of the present study is to assess the concentration of resistin in serum and gingival crevicular fluid (GCF) and to compare the levels between subjects with and without periodontitis and type 2 diabetes mellitus (T2DM) and to further correlate the resistin levels with the single-nucleotide polymorphism (SNP) at -420. SETTING AND DESIGNS A total of 96 subjects (48 males and 48 females) were divided on the basis of gingival index (GI), probing pocket depth (PD), clinical attachment level (CAL) and hemoglobin A1c levels into healthy (group 1, n = 24), uncontrolled-diabetes related periodontitis (group 2, n = 24), controlled-diabetes related periodontitis (group 3, n = 24) and chronic periodontitis without T2DM (group 4, n = 24). MATERIALS AND METHODS The GCF and serum levels of resistin were quantified using the enzyme-linked immunosorbent assay and compared among the study groups. Further, the association of the resistin levels with periodontal inflammation and SNP at -420 was studied. RESULTS AND CONCLUSION The resistin levels in GCF and serum from patients with periodontitis or diabetes mellitus related periodontitis (controlled or uncontrolled) were higher than that of healthy subjects and correlated positively with GI. Further, subjects with GG genotype at -420 showed significantly higher GI, PD, CAL as compared with genotype group CC. Resistin was detected in all serum and GCF samples and was significantly higher in periodontitis. Further, GG genotype at -420 was associated significantly with periodontal inflammation and resistin levels.
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Affiliation(s)
- Swati Pradeep Patel
- Department of Periodontics, Government Dental College and Research Institute, Bangalore, Karnataka, India
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17
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Jiang CY, Wang W, Yin YL, Yuan ZR, Wang LB. Expression of the adipocytokine resistin and its association with the clinicopathological features and prognosis of pancreatic ductal adenocarcinoma. Oncol Lett 2012; 4:960-964. [PMID: 23162631 DOI: 10.3892/ol.2012.865] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 07/10/2012] [Indexed: 12/16/2022] Open
Abstract
Fat tissue is viewed as an active endocrine organ that secretes a variety of bioactive substances. Resistin, an adipocyte-secreted factor, is thought to be closely related to obesity, insulin resistance and inflammation, the three most significant risk factors for the progression of pancreatic cancer. However, the association between resistin and pancreatic cancer is still unknown. In this study, pancreatic tumor samples from 45 patients with pancreatic ductal adenocarcinoma were analyzed with immunohistochemistry for the expression of resistin. The correlation between resistin expression and clinicopathological features and prognosis were evaluated. Resistin staining was observed in 48.9% (22 of 45) of the cases. Resistin expression was more frequent in poorly differentiated tumors (9 of 9, 100%) compared to moderately differentiated tumors (11 of 28, 39.3%) and well-differentiated tumors (2 of 8, 25%) (p<0.01). The incidence of resistin expression in patients with Japan Pancreas Society stages III-IV (18 of 27, 66.7%) was significantly higher than in subjects with stages I-II (4 of 18, 22.2%) (p<0.01). Patients with resistin-stained tumors had significantly shorter relapse-free survival times (median, 9 months) than patients with negative tumors (median, 18 months) (p<0.05). In addition, multivariate analysis showed that resistin expression was an independent prognostic factor for relapse-free survival of patients with pancreatic ductal adenocarcinoma (p<0.05). These results demonstrate that resistin may influence the progression of pancreatic tumors and may be a useful predictor of relapse-free survival in patients with pancreatic ductal adenocarcinoma.
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Genetic markers of cardiovascular disease in rheumatoid arthritis. Mediators Inflamm 2012; 2012:574817. [PMID: 22927710 PMCID: PMC3419432 DOI: 10.1155/2012/574817] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 05/28/2012] [Indexed: 12/13/2022] Open
Abstract
Cardiovascular (CV) disease is the most common cause of premature mortality in patients with rheumatoid arthritis (RA). It is the result of an accelerated atherosclerotic process. Both RA and atherosclerosis are complex polygenic diseases. Besides traditional CV risk factors and chronic inflammation, a number of studies have confirmed the role of genetic factors in the development of the atherogenesis observed in RA. In this regard, besides a strong association between the HLA-DRB1∗04 shared epitope alleles and both endothelial dysfunction, an early step in the atherosclerotic process, and clinically evident CV disease, other polymorphisms belonging to genes implicated in inflammatory and metabolic pathways, located inside and outside the HLA region, such as the 308 variant (G > A, rs1800629) of the TNFA locus, the rs1801131 polymorphism (A > C; position + 1298) of the MTHFR locus, or a deletion of 32 base pairs on the CCR5 gene, seem to be associated with the risk of CV disease in patients with RA. Despite considerable effort to decipher the genetic basis of CV disease in RA, further studies are required to better establish the genetic influence in the increased risk of CV events observed in patients with RA.
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Serum resistin in older patients with hip fracture: Relationship with comorbidity and biochemical determinants of bone metabolism. Cytokine 2011; 56:157-66. [DOI: 10.1016/j.cyto.2011.06.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 06/22/2011] [Accepted: 06/27/2011] [Indexed: 12/26/2022]
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Abstract
Several candidate gene studies on the metabolic syndrome (MetS) have been conducted. However, for most single nucleotide polymorphisms (SNPs) no systematic review on their association with MetS exists. A systematic electronic literature search was conducted until the 2nd of June 2010, using HuGE Navigator. English language articles were selected. Only genes of which at least one SNP-MetS association was studied in an accumulative total population ≥ 4000 subjects were included. Meta-analyses were conducted on SNPs with three or more studies available in a generally healthy population. In total 88 studies on 25 genes were reviewed. Additionally, for nine SNPs in seven genes (GNB3, PPARG, TCF7L2, APOA5, APOC3, APOE, CETP) a meta-analysis was conducted. The minor allele of rs9939609 (FTO), rs7903146 (TCF7L2), C56G (APOA5), T1131C (APOA5), C482T (APOC3), C455T (APOC3) and 174G>C (IL6) were more prevalent in subjects with MetS, whereas the minor allele of Taq-1B (CETP) was less prevalent in subjects with the MetS. After having systematically reviewed the most studied SNP-MetS associations, we found evidence for an association with the MetS for eight SNPs, mostly located in genes involved in lipid metabolism.
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Affiliation(s)
- C M Povel
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands.
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21
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Schwartz DR, Lazar MA. Human resistin: found in translation from mouse to man. Trends Endocrinol Metab 2011; 22:259-65. [PMID: 21497511 PMCID: PMC3130099 DOI: 10.1016/j.tem.2011.03.005] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 02/26/2011] [Accepted: 03/15/2011] [Indexed: 12/28/2022]
Abstract
The discovery of resistin 10 years ago as a fat cell-secreted factor that modulates insulin resistance suggested a link to the current obesity-associated epidemics of diabetes and cardiovascular disease, which are major human health concerns. Although adipocyte-derived resistin is indisputably linked to insulin resistance in rodent models, the relevance of human resistin is complicated because human resistin is secreted by macrophages rather than adipocytes, and because of the descriptive nature of human epidemiology. In this review, we examine the recent and growing evidence that human resistin is an inflammatory biomarker and a potential mediator of diabetes and cardiovascular disease.
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22
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Neilson AP, Djuric Z, Land S, Kato I. Plasma levels of resistin-like molecule beta in humans. Cancer Epidemiol 2010; 35:485-9. [PMID: 21094111 DOI: 10.1016/j.canep.2010.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 10/12/2010] [Accepted: 10/22/2010] [Indexed: 12/19/2022]
Abstract
BACKGROUND Resistin-like molecules (RELM) are expressed in many tissues and among those, RELMβ is most abundantly expressed in the colon. Based on animal studies, RELMβ is induced by high fat diets, obesity, and intestinal microflora and may play a role in insulin resistance and intestinal inflammation. In the present study, we evaluated whether RELMβ could be measured in human plasma and the influence of selected host and behavioral factors on RELMβ levels, including known risk factors for colorectal cancer. METHODS The subjects for this pilot study were derived from healthy controls who participated in a population-based case-control study of colorectal cancer in Metropolitan Detroit. The subjects were 45-80 years of age without history of cancer or colorectal resection. RESULTS RELMβ was present in human plasma, with levels in the range of 0.08-0.26 ng/mL. Lower RELMβ levels were found in subjects with non-Caucasian race, lower pack-years of smoking, and higher physical activity index scores. Other variables such as dietary intakes, gender, obesity, use of non-steroidal anti-inflammatory agents and history of polyps were not associated with RELMβ levels. CONCLUSIONS The direct association of RELMβ with smoking and inverse association with physical activity, both of which are risk factors for colon cancer, indicates that RELMβ may be involved in mediating the effects of these two lifestyle factors on risk of colon cancer.
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Affiliation(s)
- Andrew P Neilson
- Comprehensive Cancer Center University of Michigan, Ann Arbor, MI, USA
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23
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Stenholm S, Koster A, Alley DE, Visser M, Maggio M, Harris TB, Egan JM, Bandinelli S, Guralnik JM, Ferrucci L. Adipocytokines and the metabolic syndrome among older persons with and without obesity: the InCHIANTI study. Clin Endocrinol (Oxf) 2010; 73:55-65. [PMID: 19878507 PMCID: PMC2888845 DOI: 10.1111/j.1365-2265.2009.03742.x] [Citation(s) in RCA: 27] [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] [Indexed: 01/24/2023]
Abstract
OBJECTIVES Adipose tissue-derived inflammation may contribute to metabolic alterations and eventually to the metabolic syndrome (MetS). The purpose of this study was to: (1) examine the role of adipocytokines in the association between obesity and the MetS and (2) to determine whether the association is different in obese and non-obese persons. DESIGN Cross-sectional population-based InCHIANTI study. SUBJECTS A total of 944 community-dwelling adults aged 65 years and older living in Tuscany, Italy. MEASUREMENTS Obesity was defined as body mass index > or =30 kg/m2 and MetS as > or =3 of the ATP-III criteria. Circulating levels of C-reactive protein, interleukin (IL)-6, IL-1 receptor antagonist (IL-1ra), IL-18, tumour necrosis factor (TNF)-alpha R1, adiponectin, resistin and leptin were measured. Additionally, insulin resistance was determined using the homeostasis model assessment (HOMA-IR). RESULTS The prevalence of the MetS was 32%. Both overall and abdominal obesity were significantly associated with the MetS after adjusting for inflammatory cytokines, adipokines and lifestyle factors. After adjusting for multiple confounders and HOMA-IR, IL-1ra, TNF-alpha R1 and adiponectin (P < 0.05) remained significantly associated with the MetS. Having multiple cytokines in the highest tertile increased the likelihood of having the MetS in both obese (P for trend 0.002) and non-obese persons (P for trend 0.001) independent of insulin resistance. CONCLUSIONS Non-obese and obese individuals who develop an intense pro-inflammatory state may be more prone to develop the MetS than those with lower levels of inflammation.
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Affiliation(s)
- Sari Stenholm
- Clinical Research Branch, National Institute on Aging, 3001 S. Hanover Street, Baltimore, MD 21225, USA.
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