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Gao L, Skinner J, Nath T, Lin Q, Griffiths M, Damico RL, Pauciulo MW, Nichols WC, Hassoun PM, Everett AD, Johns RA. Resistin predicts disease severity and survival in patients with pulmonary arterial hypertension. Respir Res 2024; 25:235. [PMID: 38844967 PMCID: PMC11154998 DOI: 10.1186/s12931-024-02861-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/30/2024] [Indexed: 06/10/2024] Open
Abstract
BACKGROUND Abnormal remodeling of distal pulmonary arteries in patients with pulmonary arterial hypertension (PAH) leads to progressively increased pulmonary vascular resistance, followed by right ventricular hypertrophy and failure. Despite considerable advancements in PAH treatment prognosis remains poor. We aim to evaluate the potential for using the cytokine resistin as a genetic and biological marker for disease severity and survival in a large cohort of patients with PAH. METHODS Biospecimens, clinical, and genetic data for 1121 adults with PAH, including 808 with idiopathic PAH (IPAH) and 313 with scleroderma-associated PAH (SSc-PAH), were obtained from a national repository. Serum resistin levels were measured by ELISA, and associations between resistin levels, clinical variables, and single nucleotide polymorphism genotypes were examined with multivariable regression models. Machine-learning (ML) algorithms were applied to develop and compare risk models for mortality prediction. RESULTS Resistin levels were significantly higher in all PAH samples and PAH subtype (IPAH and SSc-PAH) samples than in controls (P < .0001) and had significant discriminative abilities (AUCs of 0.84, 0.82, and 0.91, respectively; P < .001). High resistin levels (above 4.54 ng/mL) in PAH patients were associated with older age (P = .001), shorter 6-min walk distance (P = .001), and reduced cardiac performance (cardiac index, P = .016). Interestingly, mutant carriers of either rs3219175 or rs3745367 had higher resistin levels (adjusted P = .0001). High resistin levels in PAH patients were also associated with increased risk of death (hazard ratio: 2.6; 95% CI: 1.27-5.33; P < .0087). Comparisons of ML-derived survival models confirmed satisfactory prognostic value of the random forest model (AUC = 0.70, 95% CI: 0.62-0.79) for PAH. CONCLUSIONS This work establishes the importance of resistin in the pathobiology of human PAH. In line with its function in rodent models, serum resistin represents a novel biomarker for PAH prognostication and may indicate a new therapeutic avenue. ML-derived survival models highlighted the importance of including resistin levels to improve performance. Future studies are needed to develop multi-marker assays that improve noninvasive risk stratification.
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Affiliation(s)
- Li Gao
- Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Room 3B.65B, Baltimore, MD, 21224-6821, USA.
| | - John Skinner
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Ross 361, Baltimore, MD, 21287, USA
| | - Tanmay Nath
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Qing Lin
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Ross 361, Baltimore, MD, 21287, USA
| | - Megan Griffiths
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rachel L Damico
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael W Pauciulo
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - William C Nichols
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Paul M Hassoun
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allen D Everett
- Division of Pediatric Cardiology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Roger A Johns
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Ross 361, Baltimore, MD, 21287, USA.
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Yoshida A, Takata Y, Tabara Y, Maruyama K, Inoue S, Osawa H, Sugiyama T. Interaction effect between low birthweight and resistin gene rs1862513 variant on insulin resistance and type 2 diabetes mellitus in adulthood: Toon Genome Study. J Diabetes Investig 2024; 15:725-735. [PMID: 38421160 PMCID: PMC11143422 DOI: 10.1111/jdi.14163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/11/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
AIMS/INTRODUCTION Gene-environment interactions are considered to critically influence type 2 diabetes mellitus development; however, the underlying mechanisms and specific interactions remain unclear. Given the increasing prevalence of low birthweight (LBW) influenced by the intrauterine environment, we sought to investigate genetic factors related to type 2 diabetes development in individuals with LBW. MATERIALS AND METHODS The interaction between 20 reported type 2 diabetes susceptibility genes and the development of type 2 diabetes in LBW (<2,500 g) individuals in a population-based Japanese cohort (n = 1,021) was examined by logistic regression and stratified analyses. RESULTS Logistic regression analyses showed that only the G/G genotype at the rs1862513 locus of the resistin gene (RETN), an established initiator of insulin resistance, was closely related to the prevalence of type 2 diabetes in individuals with LBW. Age, sex and current body mass index-adjusted stratified analyses showed a significant interaction effect of LBW and the RETN G/G genotype on fasting insulin, homeostatic model assessment 2-insulin resistance, Matsuda index and the prevalence of type 2 diabetes (all P-values for interaction <0.05). The adjusted odds ratio for type 2 diabetes in the LBW + G/G genotype group was 7.33 (95% confidence interval 2.43-22.11; P = 0.002) compared with the non-LBW + non-G/G genotype group. Similar results were obtained after excluding the influence of malnutrition due to World War II. CONCLUSIONS Simultaneous assessment of LBW and the RETN G/G genotype can more accurately predict the risk of future type 2 diabetes than assessing each of these factors alone, and provide management strategies, including early lifestyle intervention in LBW population.
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Affiliation(s)
- Ayaka Yoshida
- Department of Obstetrics and GynecologyEhime University Graduate School of MedicineToonEhimeJapan
| | - Yasunori Takata
- Department of Diabetes and Molecular GeneticsEhime University Graduate School of MedicineToonEhimeJapan
| | - Yasuharu Tabara
- Center for Genomic MedicineKyoto University Graduate School of MedicineKyotoJapan
- Graduate School of Public HealthShizuoka Graduate University of Public HealthShizuokaJapan
| | - Koutatsu Maruyama
- Department of Bioscience, Graduate School of AgricultureEhime UniversityToonEhimeJapan
| | - Shota Inoue
- Department of Obstetrics and GynecologyEhime University Graduate School of MedicineToonEhimeJapan
| | - Haruhiko Osawa
- Department of Diabetes and Molecular GeneticsEhime University Graduate School of MedicineToonEhimeJapan
| | - Takashi Sugiyama
- Department of Obstetrics and GynecologyEhime University Graduate School of MedicineToonEhimeJapan
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Genetic Markers of Insulin Resistance and Atherosclerosis in Type 2 Diabetes Mellitus Patients with Coronary Artery Disease. Metabolites 2023; 13:metabo13030427. [PMID: 36984867 PMCID: PMC10054456 DOI: 10.3390/metabo13030427] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/17/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is characterized by impaired insulin secretion on a background of insulin resistance (IR). IR and T2DM are associated with atherosclerotic coronary artery disease (CAD). The mechanisms of IR and atherosclerosis are known to share similar genetic and environmental roots. Endothelial dysfunction (ED) detected at the earliest stages of IR might be the origin of atherosclerosis progression. ED influences the secretion of pro-inflammatory cytokines and their encoding genes. The genes and their single nucleotide polymorphisms (SNPs) act as potential genetic markers of IR and atherosclerosis. This review focuses on the link between IR, T2DM, atherosclerosis, CAD, and the potential genetic markers CHI3L1, CD36, LEPR, RETN, IL-18, RBP-4, and RARRES2 genes.
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Chiti H, Peyrovi P, Ramazani A, Mazloomzadeh S, Parsamanesh N. Positive association of -420C > G single nucleotide polymorphism in resistin gene promoter with insulin resistance indices in diabetic type 2 patients. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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The Immunogenetics of Acne. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1367:137-154. [DOI: 10.1007/978-3-030-92616-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Taouis M, Benomar Y. Is resistin the master link between inflammation and inflammation-related chronic diseases? Mol Cell Endocrinol 2021; 533:111341. [PMID: 34082045 DOI: 10.1016/j.mce.2021.111341] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/25/2021] [Accepted: 05/28/2021] [Indexed: 01/07/2023]
Abstract
Resistin has been firstly discovered in mice and was identified as an adipose tissue-secreted hormone or adipokine linking obesity and insulin resistance. In humans, resistin has been characterized as a hormone expressed and secreted by Immune cells especially by macrophages, and was linked to many inflammatory responses including inflammation of adipose tissue due to macrophages' infiltration. Human and mouse resistin display sequence and structural similarities and also dissimilarities that could explain their different expression pattern. In mice, strong pieces of evidence clearly associated high resistin plasma levels to obesity and insulin resistance suggesting that resistin could play an important role in the onset and progression of obesity and insulin resistance via resistin-induced inflammation. In humans, the link between resistin and obesity/insulin resistance is still a matter of debate and needs more epidemiological studies. Also, resistin has been linked to other chronic diseases such as cardiovascular diseases and cancers where resistin has been proposed in many studies as a biological marker.
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Affiliation(s)
- Mohammed Taouis
- Molecular Neuroendocrinology of Food Intake (NMPA), UMR 9197, University of Paris-Saclay, Orsay, France; NMPA, Dept. Development, Evolution and Cell Signaling, Paris-Saclay Institute of Neurosciences (NeuroPSI) CNRS UMR 9197, Orsay, France.
| | - Yacir Benomar
- Molecular Neuroendocrinology of Food Intake (NMPA), UMR 9197, University of Paris-Saclay, Orsay, France; NMPA, Dept. Development, Evolution and Cell Signaling, Paris-Saclay Institute of Neurosciences (NeuroPSI) CNRS UMR 9197, Orsay, France
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Akcılar R, Dizen Namdar N, Arslan Utku S. Association between resistin gene (-420 C > G) polymorphism and acne vulgaris. J Cosmet Dermatol 2021; 21:1651-1655. [PMID: 34057280 DOI: 10.1111/jocd.14264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 04/24/2021] [Accepted: 05/24/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Acne vulgaris (AV) is the most prevalent inflammatory skin disease and develops on the face and upper trunk. Resistin, a member of the cysteine-rich secretory proteins family, is an adipokine expressed primarily in macrophages and monocytes; it has a role to play in the inflammatory period. AIMS This study's purpose was to detect whether known resistin gene (-420 C > G) polymorphism plays a role in the pathogenesis of AV. METHODS Patients with AV (n = 94) and healthy controls (n = 94) were enrolled in this investigation. Resistin gene (-420 C > G) polymorphism was decided by PCR-RFLP procedure. RESULTS The distribution of genotype frequencies of resistin gene (-420 C > G) polymorphism was significantly different between the AV and healthy controls (p = 0.002). We found that the resistin gene (-420 C > G) CG genotype exhibited a significant association with decreased acne vulgaris risk. CONCLUSIONS Our study is the first report investigating the relationship between the risk of AV and resistin gene (-420 C > G) polymorphism in the Turkish population. Resistin gene (-420 C > G) polymorphism is related to AV pathogenesis. CG genotype has a protective role and may be linked to a reduced risk of AV development. Furthermore, studies are needed to verify these findings in other populations.
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Affiliation(s)
- Raziye Akcılar
- Department of Physiology, Faculty of Medicine, University of Kütahya Health Sciences, Kütahya, Turkey
| | - Nazlı Dizen Namdar
- Department of Dermatology, Faculty of Medicine, University of Kütahya Health Sciences, Kütahya, Turkey
| | - Selve Arslan Utku
- Department of Dermatology, Faculty of Medicine, University of Kütahya Health Sciences, Kütahya, Turkey
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Kumar V, Singh J, Bala K, Singh J. Association of resistin (rs3745367) and urotensin II (rs228648 and rs2890565) gene polymorphisms with risk of type 2 diabetes mellitus in Indian population. Mol Biol Rep 2020; 47:9489-9497. [PMID: 33269434 DOI: 10.1007/s11033-020-05991-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/06/2020] [Indexed: 01/20/2023]
Abstract
Insulin resistance may become the most powerful predictor of future development of type 2 diabetes mellitus (T2DM) and a therapeutic target for the treatment of the same. Both Resistin, an adipose derived peptide hormone and Urotensin II a potent vasoconstrictor, are reported to be involved in the development of insulin resistance and T2DM but the results remain contradictory. Therefore, investigations were carried out to study the association of T2DM and single nucleotide polymorphism (SNP) in Resistin (RETN) gene at rs3745367 (+ 299 G > A) and Urotensin II (UTS2) gene at rs228648 (+ 143 G > A) and rs2890565 (+ 3836 C > T) in a North Indian population. Method: The present case-control study, conducted from August 2017 to July 2020, involved 168 T2DM patients and 102 healthy controls. SNPs rs3745367, rs228648 and rs2890565 were amplified from genomic DNA in the studied samples by polymerase chain reaction (PCR) using specific primers. The amplified products were genotyped by restriction fragment length polymorphism (RFLP) using particular restriction endonucleases. Clinical parameters viz. glycosylated haemoglobin (HbA1c), fasting blood glucose (FBG), high density lipoprotein cholesterol (HDL-C), triglycerides (TG), total cholesterol (CHL) and fasting insulin were determined by enzymatic methods. Result and conclusion: A statistically significant association between T2DM and RETN gene at SNP rs3745367 (p = 0.001) and UTS2 gene at SNP rs2890565 (p = 0.001) was observed. In RETN gene SNP rs3745367, insulin and homeostasis model assessment of insulin resistance (HOMA-IR) were found to be higher in GA + AA combined genotype than in GG genotype for T2DM subjects. Regression analysis revealed that SNP rs2890565 and HOMA-IR were independently associated with the risk of development of T2DM when three SNPs were taken as independent variable adjusted for clinical variables. Among four haplotypes, A/T was found associated with increased risk of T2DM as determined for rs228648 and rs2890565 of UTS2 gene. It can be concluded from these results that polymorphism at rs3745367 of RETN gene and at rs2890565 of UTS2 gene are associated with risk of T2DM in North Indian population.
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Affiliation(s)
- Vikas Kumar
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India
| | - Jaswinder Singh
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India
| | - Kiran Bala
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India
| | - Jasbir Singh
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, India.
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Catalina MOS, Redondo PC, Granados MP, Cantonero C, Sanchez-Collado J, Albarran L, Lopez JJ. New Insights into Adipokines as Potential Biomarkers for Type-2 Diabetes Mellitus. Curr Med Chem 2019; 26:4119-4144. [PMID: 29210636 DOI: 10.2174/0929867325666171205162248] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 10/30/2017] [Accepted: 10/30/2017] [Indexed: 02/06/2023]
Abstract
A large number of studies have been focused on investigating serum biomarkers associated with risk or diagnosis of type-2 diabetes mellitus. In the last decade, promising studies have shown that circulating levels of adipokines could be used as a relevant biomarker for diabetes mellitus progression as well as therapeutic future targets. Here, we discuss the possible use of recently described adipokines, including apelin, omentin-1, resistin, FGF-21, neuregulin-4 and visfatin, as early biomarkers for diabetes. In addition, we also include recent findings of other well known adipokines such as leptin and adiponectin. In conclusion, further studies are needed to clarify the pathophysiological significance and clinical value of these biological factors as potential biomarkers in type-2 diabetes and related dysfunctions.
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Affiliation(s)
| | - Pedro C Redondo
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003-Caceres, Spain
| | - Maria P Granados
- Aldea Moret's Medical Center, Extremadura Health Service, 10195-Caceres, Spain
| | - Carlos Cantonero
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003-Caceres, Spain
| | - Jose Sanchez-Collado
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003-Caceres, Spain
| | - Letizia Albarran
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003-Caceres, Spain
| | - Jose J Lopez
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003-Caceres, Spain
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Rathwa N, Patel R, Palit SP, Ramachandran A, Begum R. Genetic variants of resistin and its plasma levels: Association with obesity and dyslipidemia related to type 2 diabetes susceptibility. Genomics 2019; 111:980-985. [DOI: 10.1016/j.ygeno.2018.06.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 01/04/2023]
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Bouziana S, Tziomalos K, Goulas A, Vyzantiadis TA, Papadopoulou M, Panderi A, Ηatzitolios AΙ. Effects of major adipokines and the -420 C > G resistin gene polymorphism on the long-term outcome of patients with acute ischemic stroke. Int J Neurosci 2019; 129:978-985. [PMID: 30885017 DOI: 10.1080/00207454.2019.1596906] [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] [Indexed: 12/29/2022]
Abstract
Aim: The association between adiponectin, leptin, and resistin and the long-term outcome of ischemic stroke are controversial. We aimed to evaluate this relationship. Methods: We prospectively studied 83 patients consecutively hospitalized for acute ischemic stroke (38.6% males, age 79.7 ± 6.3 years). Serum adiponectin, leptin, and resistin levels and the -420C > G polymorphism of the resistin gene were determined at admission. Stroke severity at admission was evaluated with the National Institutes of Health Stroke Scale (NIHSS). One year after discharge, functional status, incidence of cardiovascular events and all-cause mortality were recorded. Functional status was evaluated with the modified Rankin scale (mRS). Results: Patients with the G allele had lower mRS (p < .05) and patients with adverse outcome had higher serum resistin levels (p < .05). The only independent predictor of adverse outcome was mRS at discharge (risk ratio (RR) 2.78, 95% confidence interval (CI) 1.54-5.00; p < .001). Higher adiponectin levels were an independent predictor of cardiovascular morbidity (RR 1.07, 95% CI 1.01-1.14; p < .05). Patients who died had higher serum adiponectin levels than those who survived (p < .05). The only independent predictor of all-cause mortality was NIHSS at admission (RR 1.19, 95% CI 1.04-1.35; p < .01). Conclusions: In patients with acute ischemic stroke, the G allele of the -420C > G polymorphism of the resistin gene promoter is more frequent in those with a more favorable functional outcome at one year after discharge. Patients with higher serum resistin levels appear to have worse long-term functional outcome, while higher serum adiponectin levels are associated with higher incidence of cardiovascular events.
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Affiliation(s)
- Stella Bouziana
- First Propedeutic Department of Internal Medicine, AHEPA Hospital, School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Konstantinos Tziomalos
- First Propedeutic Department of Internal Medicine, AHEPA Hospital, School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Antonis Goulas
- First Laboratory of Pharmacology, Medical Department, School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Timoleon-Achilleas Vyzantiadis
- First Department of Microbiology, Medical Department School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Maria Papadopoulou
- First Propedeutic Department of Internal Medicine, AHEPA Hospital, School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Athanasia Panderi
- First Laboratory of Pharmacology, Medical Department, School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Apostolos Ι Ηatzitolios
- First Propedeutic Department of Internal Medicine, AHEPA Hospital, School of Health Sciences, Aristotle University of Thessaloniki , Thessaloniki , Greece
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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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Noumi Y, Kawamura R, Tabara Y, Maruyama K, Takata Y, Nishida W, Okamoto A, Nishimiya T, Onuma H, Saito I, Tanigawa T, Osawa H. An inverse association between serum resistin levels and n-3 polyunsaturated fatty acids intake was strongest in the SNP-420 G/G genotype in the Japanese cohort: The Toon Genome Study. Clin Endocrinol (Oxf) 2018; 88:51-57. [PMID: 29044636 DOI: 10.1111/cen.13500] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 10/12/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Resistin is secreted by monocytes/macrophages and is associated with insulin resistance, inflammation and cardiovascular diseases. In the Japanese cohort, serum resistin is tightly associated with a single-nucleotide polymorphism (SNP) at -420 (rs1862513) in the promoter region of the human resistin gene. However, interactions between SNP-420 and environmental factors remain to be elucidated. The aim of this study was to investigate the association between serum resistin levels and nutrient intake, and the effect of SNP-420 on this association. DESIGN, PARTICIPANTS AND MEASUREMENTS The Toon Genome Study is a cohort study of Japanese community-dwelling subjects. A total of 1981 participants were cross-sectionally analysed. Each nutrient intake was assessed using the semiquantitative food frequency questionnaire and categorized into the quartiles (Q1-Q4). Serum resistin was measured by ELISA. RESULTS Serum resistin tended to be inversely associated with fish intake and positively associated with meat intake after adjustment for age, sex, BMI and energy intake. Serum resistin was inversely associated with n-3 polyunsaturated fatty acids (PUFA) intake after adjustment for age, sex, BMI and energy intake (Q1 12.5, Q2 12.5, Q3 12.2, Q4 11.5 ng/mL; P for trend = .007). This inverse association was strongest in the G/G genotype of SNP-420, followed by C/G and C/C (G/G, Q1 18.9, Q2 19.5, Q3 18.4, Q4 14.5 ng/mL, P = .001; C/G, 14.4, 13.3, 13.1, 12.9, P = .015; C/C, 9.5, 9.5, 9.2, 8.8, P = .020; P for interaction = .004). CONCLUSIONS The inverse association between serum resistin and n-3 PUFA intake was strongest in SNP-420 G/G genotype in the Japanese cohort.
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Affiliation(s)
- Yukinobu Noumi
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Ryoichi Kawamura
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Yasuharu Tabara
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koutatsu Maruyama
- Department of Public Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yasunori Takata
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Wataru Nishida
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Ai Okamoto
- Department of Clinical Laboratory, Ehime University Hospital, Ehime, Japan
| | - Tatsuya Nishimiya
- Department of Clinical Laboratory, Ehime University Hospital, Ehime, Japan
| | - Hiroshi Onuma
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Isao Saito
- Department of Community Health Systems Nursing, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Takeshi Tanigawa
- Department of Public Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Haruhiko Osawa
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
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Niu XH, Li L, Li JY, Song Q, Jin MM, Liu JX. Serum resistin positively correlates with serum lipids, but not with insulin resistance, in first-degree relatives of type-2 diabetes patients: an observational study in China. Medicine (Baltimore) 2017; 96:e6622. [PMID: 28422857 PMCID: PMC5406073 DOI: 10.1097/md.0000000000006622] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
To investigate whether serum resistin correlated with hypertension, obesity, dyslipidemia, or insulin resistance (IR) in Chinese type 2 diabetes mellitus (T2DM) patients and their first-degree relatives (DFDRs) in a case-control observational study.We determined the serum levels of resistin, plasma lipids, glucose, and insulin, and performed clinical assessments of hypertension, obesity, and IR for 42 T2DM patients, 74 of their DFDRs, and 51 healthy control participants with no family history of T2DM (NC group). The biochemical and clinical variables were compared between the 3 groups, and relationships between serum resistin and the other variables were evaluated using a Pearson correlation analysis.Significant trends were observed in the triglyceride, HbA1c, and resistin levels, in which the values observed in the DFDR group were intermediate to those of the T2DM and NC groups (P < .05 for all). A stratified analysis revealed significant trends in the resistin level and scores for homeostasis model assessment (HOMA) indexes for IR and insulin sensitivity in women and in the HbA1c and resistin levels in men (P < .05 for all), with DFDR subjects exhibiting intermediate values. The Pearson analysis showed that serum resistin positively correlated with total cholesterol and low-density lipoprotein cholesterol in the DFDR group only (P < .05 for both), and that resistin did not correlate significantly with HOMA indexes, blood glucose, insulin, HbA1c, triglyceride, high-density lipoprotein cholesterol, BMI, waist or hip circumference, or blood pressure.Our results suggest that elevated serum resistin might contribute to an increased risk of hyperlipidemia in DFDRs of Chinese T2DM patients.
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Affiliation(s)
| | - Li Li
- Department of Endocrinology
| | | | | | | | - Jin-xia Liu
- Clinical Laboratory, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
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Onuma H, Tabara Y, Kawamura R, Ohashi J, Nishida W, Takata Y, Ochi M, Nishimiya T, Ohyagi Y, Kawamoto R, Kohara K, Miki T, Osawa H. Dual Effects of a RETN Single Nucleotide Polymorphism (SNP) at -420 on Plasma Resistin: Genotype and DNA Methylation. J Clin Endocrinol Metab 2017; 102:884-892. [PMID: 27929711 DOI: 10.1210/jc.2016-2417] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 12/07/2016] [Indexed: 02/03/2023]
Abstract
CONTEXT We previously reported that single nucleotide polymorphism (SNP)-420 C>G (rs1862513) in the promoter region of RETN was associated with type 2 diabetes. Plasma resistin was tightly correlated with SNP-420 genotypes. SNP-420 is a CpG-SNP affecting the sequence of cytosine-phosphate-guanine dinucleotides. OBJECTIVE To examine whether methylation at SNP-420 affects plasma resistin, we analyzed plasma resistin and methylation at RETN SNP-420. DESIGN AND METHODS Genomic DNA was extracted from peripheral white blood cells in 2078 Japanese subjects. Quantification of the methylation was performed by pyrosequencing after DNA bisulfite conversion. RESULTS Methylation at SNP-420 was highest in the C/C genotype (36.9 ± 5.7%), followed by C/G (21.4 ± 3.5%) and G/G (2.9 ± 1.4%; P < 0.001). When assessed in each genotype, methylation at SNP-420 was inversely associated with plasma resistin in the C/C (β = -0.134, P < 0.001) or C/G (β = -0.227, P < 0.001) genotype. In THP-1 human monocytes intrinsically having the C/C genotype, a demethylating reagent, 5-aza-dC, decreased the methylation at SNP-420 and increased RETN messenger RNA. SNP+1263 (rs3745369), located in the 3' untranslated region of RETN, was also associated with methylation at SNP-420. In addition, highly sensitive C-reactive protein was inversely associated with methylation at SNP-420 in the C/C genotype, whereas body mass index was positively associated. CONCLUSIONS Plasma resistin was inversely associated with the extent of methylation at SNP-420 mainly dependent on the SNP-420 genotype. The association can also be explained partially independent of SNP-420 genotypes. SNP-420 could have dual, genetic and epigenetic effects on plasma resistin.
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Affiliation(s)
| | - Yasuharu Tabara
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan; and
| | | | - Jun Ohashi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-8654, Japan
| | | | | | | | | | | | - Ryuichi Kawamoto
- Community Medicine, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
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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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Yan A, Cai G, Fu N, Feng Y, Sun J, Maimaiti Y, Zhou W, Fu Y. Relevance Study on Cerebral Infarction and Resistin Gene Polymorphism in Chinese Han Population. Aging Dis 2016; 7:593-603. [PMID: 27699082 PMCID: PMC5036954 DOI: 10.14336/ad.2016.0201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 02/02/2016] [Indexed: 12/23/2022] Open
Abstract
Recent research on genome-wide associations has implicated that the serum resistin level and its gene polymorphism are associated with cerebral infarction (CI) morbidity and prognosis, and could thereby regulate CI. This study aimed to investigate the association between the resistin single nucleotide polymorphism (SNP) and the susceptibility to CI in the Chinese Han population. A total of 550 CI patients and 313 healthy controls were genotyped. Nine SNPs of the resistin gene previously shown were sequenced and assessed for an association with CI. The numbers of GG genotype carriers of rs3219175 and rs3486119 in the CI group were significantly higher than those in the control group among the middle-aged group (aged 45-65), at 76% vs 67.9% (P=0.025) and 75.5% vs 67.9% (P=0.031). rs3219175 and rs34861192 were associated with CI in the dominant and superdominant models according to the genetic model analysis (P<0.05). Meanwhile, there was strong linkage disequilibrium among the rs34124816, rs3219175, rs34861192, rs1862513, rs3745367, 180C/G and rs3745369 sites. In a haplotype analysis, the occurrence rate of the haplotype AGGCAGC was 1.97 times (P<0.05) higher in the patient group than in the control group. In addition, the numbers of GG genotype carriers of rs3219175 and rs3486119 in the middle-aged male CI patients and the middle-aged small artery occlusion (SAO) CI patients were higher than those in the control group (P<0.05). In the Chinese Han middle-aged population, the GG gene type carriers of the resistin gene sites rs3219175 and rs34861192 had a high risk for CI onset, especially in middle-aged male patients and SAO CI in all middle-aged patients.
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Affiliation(s)
- Aijuan Yan
- 1Department of Neurology & Institute of Neurology, and
| | - Gaoyu Cai
- 1Department of Neurology & Institute of Neurology, and
| | - Ningzhen Fu
- 1Department of Neurology & Institute of Neurology, and
| | - Yulan Feng
- 3Department of Neurology, Minhang Central Hospital, Shanghai 201100, China
| | - Jialan Sun
- 4Department of Neurology, Gongli Hospital, Shanghai 200135, China
| | - Yiming Maimaiti
- 5Department of Neurology, the Second People's Hospital of Kashgar, Kashgar 844000, China
| | - Weijun Zhou
- 2Emergency Department, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Yi Fu
- 1Department of Neurology & Institute of Neurology, and
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Kawamura R, Tabara Y, Tsukada A, Igase M, Ohashi J, Yamada R, Takata Y, Kawamoto R, Saito I, Onuma H, Tanigawa T, Yamada K, Kato N, Ohyagi Y, Miki T, Kohara K, Osawa H. Genome-wide association study of plasma resistin levels identified rs1423096 and rs10401670 as possible functional variants in the Japanese population. Physiol Genomics 2016; 48:874-881. [PMID: 27664181 DOI: 10.1152/physiolgenomics.00040.2016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 09/22/2016] [Indexed: 01/06/2023] Open
Abstract
Resistin is a cytokine inducing insulin resistance in mice. We previously identified single nucleotide polymorphisms (SNPs) at -420 (rs1862513) and -358 (rs3219175) located in the human resistin gene (RETN) promoter as strong determinants for circulating resistin in the Japanese population. The objective was to identify additional functional variants for circulating resistin. We conducted a genome-wide association study in 448 Japanese subjects. A peak association signal was found on chromosome 19 where RETN is located. The top-hit SNP was SNP -358 G>A, followed by rs1423096 C>T, SNP -420 C>G, and rs10401670 C>T (P = 5.39×10-47, 1.81×10-22, 2.09×10-16, and 9.25×10-15, respectively). Meta-analysis including another two independent general Japanese populations showed that circulating resistin was most strongly associated with SNP-358, followed by SNP-420, rs1423096, and rs10401670. Rs1423096 and rs10401670 were located in the 3'-region of RETN and were in strong linkage disequilibrium. Although these SNPs were also in linkage disequilibrium with the promoter SNPs, conditional and haplotype association analyses identified rs1423096 and rs10401670 as independent determinants for circulating resistin. Functionally, nuclear proteins specifically recognized T but not C at rs10401670 as evidenced by an electrophoretic mobility shift assay. The promoter activity of a luciferase reporter with T at either rs1423096 or rs10401670 was lower than that with C in THP-1 human monocytes. Therefore, rs1423096 and rs10401670, in addition to SNP-420 and SNP-358, were identified as possible functional variants affecting circulating resistin by the genome-wide search in the Japanese population.
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Affiliation(s)
- Ryoichi Kawamura
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Yasuharu Tabara
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akiko Tsukada
- Matsumoto University Graduate School of Health Science, Nagano, Japan
| | - Michiya Igase
- Department of Geriatric Medicine & Neurology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Jun Ohashi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Ryo Yamada
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yasunori Takata
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Ryuichi Kawamoto
- Department of Community Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Isao Saito
- Department of Community Health Systems Nursing, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Hiroshi Onuma
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Takeshi Tanigawa
- Department of Public Health, Juntendo University School of Medicine, Tokyo, Japan; and
| | - Kazuya Yamada
- Matsumoto University Graduate School of Health Science, Nagano, Japan
| | - Norihiro Kato
- Department of Gene Diagnostics and Therapeutics Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yasumasa Ohyagi
- Department of Geriatric Medicine & Neurology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Tetsuro Miki
- Department of Geriatric Medicine & Neurology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Katsuhiko Kohara
- Department of Geriatric Medicine & Neurology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Haruhiko Osawa
- Department of Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan;
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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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Resistin gene polymorphisms are associated with acne and serum lipid levels, providing a potential nexus between lipid metabolism and inflammation. Arch Dermatol Res 2016; 308:229-37. [PMID: 26858108 DOI: 10.1007/s00403-016-1626-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 01/12/2016] [Accepted: 01/20/2016] [Indexed: 12/19/2022]
Abstract
Acne vu lgaris is a multifactorial inflammatory skin disease causing social stigma and psychological effect on patients. We hypothesized that the genes that can affect both lipid metabolism and inflammation may be central for acne formation and present targets for treatment. Pro-inflammatory adipokine resistin, one such likely target, activates NFkB and JNK pathways inducing TLR-2, IL-1, IL-6, and TNFα genes. The polymorphisms in promoter and intron region of the resistin gene affect its expression levels. Therefore, we explored the association of resistin polymorphisms (RETN +299G > A and -420C > G) with pathogenesis of acne vulgaris. We used PCR-RFLP method to genotype at the two single nucleotide polymorphisms at RETN promoter in 530 acne patients vs. 550 age- and sex-matched control subjects. We also measured serum lipid levels in acne patients and associated these with RETN genotypes. We found that the RETN gene polymorphisms are strongly associated with acne vulgaris and the severity of acne symptoms. In females the variant allele frequencies of both SNPs are statistically higher in patients than in controls; in males frequency distribution does not reach significance. The haplotype containing both variant alleles is significantly more common in patients than in controls. We find no association of RETN SNPs with the acne types. Importantly, we found that the levels of HDL-C were significantly decreased in variant genotype of RETN. Our results show that the RETN polymorphisms expected to boost resistin expression increase the risk of developing acne. We suggest that resistin may provide an attractive target for treatment.
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Hamada J, Onuma H, Ochi F, Hirai H, Takemoto K, Miyoshi A, Matsushita M, Kadota Y, Ohashi J, Kawamura R, Takata Y, Nishida W, Hashida S, Ishii E, Osawa H. Endoplasmic reticulum stress induced by tunicamycin increases resistin messenger ribonucleic acid through the pancreatic endoplasmic reticulum eukaryotic initiation factor 2α kinase-activating transcription factor 4-CAAT/enhancer binding protein-α homologous protein pathway in THP-1 human monocytes. J Diabetes Investig 2015; 7:312-23. [PMID: 27330716 PMCID: PMC4847884 DOI: 10.1111/jdi.12434] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 09/09/2015] [Accepted: 09/23/2015] [Indexed: 01/06/2023] Open
Abstract
AIMS/INTRODUCTION Resistin, secreted from adipocytes, causes insulin resistance in mice. In humans, the resistin gene is mainly expressed in monocytes and macrophages. Tunicamycin is known to induce endoplasmic reticulum (ER) stress, and reduce resistin gene expression in 3T3-L1 mouse adipocytes. The aim of the present study was to examine whether ER stress affects resistin gene expression in human monocytes. MATERIALS AND METHODS The relationship between resistin messenger ribonucleic acid (mRNA) and ER stress markers mRNA was analyzed by reverse transcription polymerase chain reaction in isolated monocytes of 30 healthy volunteers. The effect of endotoxin/lipopolysaccharides or tunicamycin on resistin gene expression was analyzed in THP-1 human monocytes. Signaling pathways leading to resistin mRNA were assessed by the knockdown using small interfering RNA or overexpression of key molecules involved in unfolded protein response. RESULTS Resistin mRNA was positively associated with immunoglobulin heavy chain-binding protein (BiP) or CAAT/enhancer binding protein-α homologous protein (CHOP) mRNA in human isolated monocytes. In THP-1 cells, lipopolysaccharides increased mRNA of BiP, pancreatic endoplasmic reticulum eukaryotic initiation factor 2α kinase (PERK) and CHOP, as well as resistin. Tunicamycin also increased resistin mRNA. This induction appeared to be dose- and time-dependent. Tunicamycin-induced resistin mRNA was inhibited by chemical chaperone, 4-phenylbutyric acid. The knockdown of either PERK, activating transcription factor 4 (ATF4) or CHOP reduced tunicamycin-induced resistin mRNA. Conversely, overexpression of ATF4 or CHOP increased resistin mRNA. CONCLUSIONS Endoplasmic reticulum stress induced by tunicamycin increased resistin mRNA through the PERK-ATF4-CHOP pathway in THP-1 human monocytes. ER stress could lead to insulin resistance through enhanced resistin gene expression in human monocytes.
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Affiliation(s)
- Junpei Hamada
- Department of Pediatrics Ehime University Graduate School of Medicine Ehime Japan
| | - Hiroshi Onuma
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Fumihiro Ochi
- Department of Pediatrics Ehime University Graduate School of Medicine Ehime Japan
| | - Hiroki Hirai
- Department of Pediatrics Ehime University Graduate School of Medicine Ehime Japan
| | - Koji Takemoto
- Department of Pediatrics Ehime University Graduate School of Medicine Ehime Japan
| | - Akiko Miyoshi
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Manami Matsushita
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Yuko Kadota
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Jun Ohashi
- Department of Biological Sciences Tokyo University Graduate School of Science Tokyo Japan
| | - Ryoichi Kawamura
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Yasunori Takata
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Wataru Nishida
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
| | - Seiichi Hashida
- Institute for Health Sciences Tokushima Bunri University Tokushima Japan
| | - Eiichi Ishii
- Department of Pediatrics Ehime University Graduate School of Medicine Ehime Japan
| | - Haruhiko Osawa
- Department of Diabetes and Molecular Genetics Ehime University Graduate School of Medicine Ehime Japan
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Itakura H, Kobayashi M, Nakamura S. Chlorella ingestion suppresses resistin gene expression in peripheral blood cells of borderline diabetics. Clin Nutr ESPEN 2015; 10:e95-e101. [DOI: 10.1016/j.clnesp.2015.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 03/31/2015] [Accepted: 04/01/2015] [Indexed: 01/20/2023]
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Al Hannan F, Culligan KG. Human resistin and the RELM of Inflammation in diabesity. Diabetol Metab Syndr 2015; 7:54. [PMID: 26097512 PMCID: PMC4474570 DOI: 10.1186/s13098-015-0050-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 06/05/2015] [Indexed: 12/11/2022] Open
Abstract
The initial discovery of resistin and resistin-like molecules (RELMs) in rodents suggested a role for these adipocytokines in molecular linkage of obesity, Type 2 Diabetes mellitus and metabolic syndrome. Since then, it became apparent that the story of resistin and RELMs was very much of mice and men. The putative role of this adipokine family evolved from that of a conveyor of insulin resistance in rodents to instigator of inflammatory processes in humans. Structural dissimilarity, variance in distribution profiles and a lack of corroborating evidence for functional similarities separate the biological functions of resistin in humans from that of rodents. Although present in gross visceral fat deposits in humans, resistin is a component of inflammation, being released from infiltrating white blood cells of the sub-clinical chronic low grade inflammatory response accompanying obesity, rather than from the adipocyte itself. This led researchers to further explore the functions of the resistin family of proteins in inflammatory-related conditions such as atherosclerosis, as well as in cancers such as endometrial and gastric cancers. Although elevated levels of resistin have been found in these conditions, whether it is causative or as a result of these conditions still remains to be determined.
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Affiliation(s)
- Fatima Al Hannan
- />Department of Biomedical Sciences, Royal College of Surgeons in Ireland – Bahrain, Building No. 2441, Road 2835, Busaiteen, Kingdom of Bahrain
| | - Kevin Gerard Culligan
- />Department of Biomedical Sciences, Royal College of Surgeons in Ireland – Bahrain, Building No. 2441, Road 2835, Busaiteen, Kingdom of Bahrain
- />Royal College of Surgeons in Ireland – Bahrain, PO Box 15503, Adliya, Kingdom of Bahrain
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Abstract
BACKGROUND AND OBJECTIVES Resistin is an adipocytokine, which has been studied for its role in insulin resistance and recently in inflammation. Several single-nucleotide polymorphisms (SNPs) have been identified in the human resistin gene (RETN). This study aims to investigate the association of RETN rs1862513 (C-420G) and rs3745367 (G+299A) SNPs with the colon cancer risk in Saudi patients. DESIGN AND SETTING This is a case-control study conducted among Saudi adult colon cancer patients recruited from King Abdulaziz Hospital and Oncology Center in Jeddah, Saudi Arabia. SUBJECTS AND METHODS In this study, 120 Saudi volunteers (60 colon cancer patients and 60 disease-free controls) were studied. The SNPs were determined by polymerase chain reaction (PCR) and genotyping using PCR- restriction fragment length polymorphism analysis. RESULTS In comparing the result obtained for the patient group with that of the controls, colon cancer group displayed different genotype distribution of the RETN C-420G and G+299A SNPs. The study indicated that the SNP-420 heterozygous (CG) genotype (odds ratio [OR]=2.48, 95% CI 1.07-5.74, P=.03) and the SNP +299 heterozygous (GA) genotype (OR=6.5, 95% CI 1.77-24.18, P=.002) significantly increased the risk of colon cancer. A further analysis of the genotype combination of SNPs RETN C-420G and G+299A showed a larger increase in the colon cancer risk. CONCLUSION These preliminary results suggested a potential role for RETN C-420G and G+299A polymorphisms in the genetic predisposition to colon cancer disease.
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Affiliation(s)
- Rowyda N Alharithy
- Dr. Rowyda N. Alharithy, Department of Biochemistry, King Abdulaziz University, PO Box 40288 Jeddah 21499 Saudi Arabia, T: 0505444238 F: 0126393640,
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Nakashima E, Watarai A, Tsukahara T, Hamada Y, Naruse K, Kamiya H, Kato J, Kato N, Tomita M, Oiso Y, Nakamura J. Association of resistin polymorphism, its serum levels and prevalence of stroke in Japanese type 2 diabetic patients. J Diabetes Investig 2014; 1:154-8. [PMID: 24843425 PMCID: PMC4008008 DOI: 10.1111/j.2040-1124.2010.00040.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Aims/Introduction: Resistin, an inflammatory cytokine, might be involved in the development of atherosclerosis. In a recent paper, we showed that resistin polymorphism might be a risk marker for stroke susceptibility in Japanese type 2 diabetic patients. We tested whether the serum resistin levels might be also a risk marker of stroke independently from RETN polymorphism. Materials and Methods: Type 2 diabetic outpatients from our hospitals were enrolled. Patients (n = 89) with a history of coronary heart disease and stroke, and randomly selected controls (n = 178) matched for sex and age, but without a history of coronary heart disease and stroke, were examined for polymorphism ‐420 (C>G) and cytokines levels. Results: Serum resistin levels were significantly higher in patients with cardiovascular diseases (CVD) than in those without CVD (P = 0.024), and were highest in patients with stroke among the CVD. In multiple logistic regression analysis, serum resistin levels was an independent risk marker of stroke even after adjusted by RETN polymorphism, age, sex, body mass index, HbA1c, systolic and diastolic blood pressure, triglyceride, low density lipoprotein cholesterol, high density lipoprotein cholesterol, creatinine, history of coronary heart disease, treatment of insulin, sulfonylurea and aspirin (odds ratio 1.33, 95% confidence interval [CI] 1.02–1.73, P = 0.039). The enrolled patients were divided by their serum resistin levels (high or low group) and their genotypes (CC, CG, GG at ‐420) into six groups. Patients with the GG genotype and high resistin levels showed the highest odds ratio, 5.69 (95% CI 1.24–26.1), compared with the group with CC and low levels. Conclusions: The results suggest that serum resistin levels might be a good marker of susceptibility to stroke as well as RETN polymorphism. (J Diabetes Invest, doi: 10.1111/j.2040‐1124.00040.x, 2010)
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Affiliation(s)
- Eitaro Nakashima
- Diabetes Center, Chubu Rosai Hospital, Japan Labour Health and Welfare Organization
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
- Corresponding author. Eitaro Nakashima Tel.: +81‐52‐652‐5511 Fax: +81‐52‐653‐3533 E‐mail address:
| | - Atsuko Watarai
- Diabetes Center, Chubu Rosai Hospital, Japan Labour Health and Welfare Organization
| | - Takayoshi Tsukahara
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
| | - Yoji Hamada
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
| | - Keiko Naruse
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
| | - Hideki Kamiya
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
| | - Jiro Kato
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
| | - Norihiro Kato
- Department of Gene Diagnostics and Therapeutics, International Medical Center of Japan, Tokyo
| | - Makoto Tomita
- Department of Mathematical Sciences, Faculty of Mathematical Sciences and Information Engineering, Nanzan University, Seto, Japan
| | - Yutaka Oiso
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
| | - Jiro Nakamura
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya
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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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Wen Y, Lu P, Dai L. Association between resistin gene -420 C/G polymorphism and the risk of type 2 diabetes mellitus: a meta-analysis. Acta Diabetol 2013; 50:267-72. [PMID: 21190046 DOI: 10.1007/s00592-010-0247-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Accepted: 12/13/2010] [Indexed: 11/30/2022]
Abstract
Epidemiological studies on the association between the single nucleotide polymorphism (SNP) at -420 C/G (rs1862513) in the human resistin gene (RETN) and the risk of type 2 diabetes mellitus (T2DM) are conflicting. In order to derive a more precise estimation of the association, a meta-analysis was conducted. Twelve studies with 5,935 cases and 5,959 controls were enrolled by searching the databases of Medline, EMBASE, and Cochrane. Summary odds ratios (ORs) with 95% confidence intervals (CIs) were calculated. The heterogeneity and publication bias were investigated. The main analysis indicated no significant association [for allelic model: OR = 0.97 (0.92-1.03); for additive model: OR = 0.95 (0.83-1.09); for recessive model: OR = 0.98 (0.86-1.12); for dominant model: OR = 0.95 (0.88-1.04)]. Overall, no significant heterogeneity was found. Subgroup analysis by race and source of controls indicated no significant association. In conclusion, the current meta-analysis did not observe any association between the polymorphism of RETN -420 C/G and the risk of T2DM. The study may help us further understand the genetics of T2DM. However, larger and prospective studies are warranted to confirm this finding.
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Affiliation(s)
- Ying Wen
- Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, 157 Baojian Road, 150086, Nangang District, Harbin, China.
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29
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Onuma H, Tabara Y, Kawamura R, Ohashi J, Nishida W, Takata Y, Ochi M, Nishimiya T, Kawamoto R, Kohara K, Miki T, Osawa H. Plasma resistin is associated with single nucleotide polymorphisms of a possible resistin receptor, the decorin gene, in the general Japanese population. Diabetes 2013; 62. [PMID: 23193185 PMCID: PMC3554371 DOI: 10.2337/db12-0058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Resistin is an adipokine secreted from adipocytes in mice. We previously reported that a single nucleotide polymorphism (SNP) -420 (rs1862513) in the human resistin gene (RETN), is correlated with plasma resistin. Decorin is a multifunctional proteoglycan, and its isoform, lacking 14 amino acids from the N terminal region of mature core decorin, recently was identified as a resistin receptor in mice. To examine whether SNPs in the vicinity of the human decorin gene (DCN) are associated with plasma resistin, we cross-sectionally analyzed six tag SNPs selected around DCN in the same linkage disequilibrium block in 2,078 community-dwelling Japanese subjects. Plasma resistin was associated with the rs7139228, rs7956537, rs516115, and rs3138167 genotypes in DCN. A multiple regression analysis revealed that the genotype of rs7308752 (G/G) or rs516115 (C/C) was associated with decreased plasma resistin after adjusted for age, sex, BMI, and the RETN SNP rs1862513. The effect of rs7139228 and rs1862513 seemed to be additive without synergistic interaction. Therefore, plasma resistin was associated with some tag SNPs around DCN in the general Japanese population. The possibility that human decorin is a human resistin receptor should be pursued.
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Affiliation(s)
- Hiroshi Onuma
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Corresponding authors: Hiroshi Onuma, , and Haruhiko Osawa,
| | - Yasuharu Tabara
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Translational Research Center, Ehime University Hospital, Ehime, Japan
| | - Ryoichi Kawamura
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Jun Ohashi
- Doctoral Program in Life System Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Wataru Nishida
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
| | - Yasunori Takata
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
| | - Masaaki Ochi
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Tatsuya Nishimiya
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Ryuichi Kawamoto
- Department of Community Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Katsuhiko Kohara
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Tetsuro Miki
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Haruhiko Osawa
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
- Department of Anti-Aging and Genetics, Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Corresponding authors: Hiroshi Onuma, , and Haruhiko Osawa,
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Boumaiza I, Omezzine A, Rejeb J, Rebhi L, Ben Rejeb N, Nabli N, Ben Abdelaziz A, Bouslama A. Association between four resistin polymorphisms, obesity, and metabolic syndrome parameters in Tunisian volunteers. Genet Test Mol Biomarkers 2012; 16:1356-62. [PMID: 23020084 DOI: 10.1089/gtmb.2012.0156] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Resistin is an adipocyte-secreted cytokine recently discovered and has been proposed as a link between obesity and diabetes. Many resistin gene polymorphisms were described and their implication in obesity and metabolic syndrome (MetS) was controversial. Our aim was to study the relationship between four resistin polymorphisms (420C/G, 44G/A, 62G/A, and 394C/G), MetS parameters, and the risk of obesity in Tunisian volunteers. We recruited 169 nonobese (sex ratio=0.594; mean age=43.25±13.12 years; mean body mass index [BMI]=24.73±3.50 kg/m(2)) and 160 obese subjects (sex ratio=0.221; mean age=48.41±10.92 years; mean BMI=36.6±4.8 kg/m(2)). Genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism. Anthropometric parameters, lipid levels, glycemia, and insulinemia were measured. BMI was calculated and insulin resistance was evaluated with the homeostasis model assessment insulin resistance (HOMA-IR). Statistical analyses were performed by SPSS 17.0. The 420C/G seems to contribute to obesity. In fact adjusted odds ratio (OR) of obesity associated to mutated genotypes was 2.17 and 95% confidence interval was 1.28-3.68 (p=0.004). Mutated genotypes at 420C/G were associated with higher waist circumference and BMI. In addition, 44G/A polymorphism was associated with increased total cholesterol and low-density lipoprotein-cholesterol levels. The other genotypes showed no association with MetS parameters. Concerning association between single-nucleotide polymorphisms and MetS risk, only mutated genotypes at 44G/A increase the risk of MetS after adjustment to confounding parameters (OR=1.93, p=0.023). In conclusion, resistin gene polymorphisms 420C/G and 44G/A were associated with obesity and MetS parameters in Tunisian volunteers.
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Affiliation(s)
- Imen Boumaiza
- Biochemistry Department, UR MSP 28/04, Sahloul University Hospital, Sousse, Tunisia
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Qi Q, Menzaghi C, Smith S, Liang L, de Rekeneire N, Garcia ME, Lohman KK, Miljkovic I, Strotmeyer ES, Cummings SR, Kanaya AM, Tylavsky FA, Satterfield S, Ding J, Rimm EB, Trischitta V, Hu FB, Liu Y, Qi L. Genome-wide association analysis identifies TYW3/CRYZ and NDST4 loci associated with circulating resistin levels. Hum Mol Genet 2012; 21:4774-80. [PMID: 22843503 DOI: 10.1093/hmg/dds300] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Resistin is a polypeptide hormone that was reported to be associated with insulin resistance, inflammation and risk of type 2 diabetes and cardiovascular disease. We conducted a genome-wide association (GWA) study on circulating resistin levels in individuals of European ancestry drawn from the two independent studies: the Nurses' Health Study (n = 1590) and the Health, Aging and Body Composition Study (n = 1658). Single-nucleotide polymorphisms (SNPs) identified in the GWA analysis were replicated in an independent cohort of Europeans: the Gargano Family Study (n = 659). We confirmed the association with a previously known locus, the RETN gene (19p13.2), and identified two novel loci near the TYW3/CRYZ gene (1p31) and the NDST4 gene (4q25), associated with resistin levels at a genome-wide significant level, best represented by SNP rs3931020 (P = 6.37 × 10(-12)) and SNP rs13144478 (P = 6.19 × 10(-18)), respectively. Gene expression quantitative trait loci analyses showed a significant cis association between the SNP rs3931020 and CRYZ gene expression levels (P = 3.68 × 10(-7)). We also found that both of these two SNPs were significantly associated with resistin gene (RETN) mRNA levels in white blood cells from 68 subjects with type 2 diabetes (both P = 0.02). In addition, the resistin-rising allele of the TYW3/CRYZ SNP rs3931020, but not the NDST4 SNP rs13144478, showed a consistent association with increased coronary heart disease risk [odds ratio = 1.18 (95% CI, 1.03-1.34); P = 0.01]. Our results suggest that genetic variants in TYW3/CRYZ and NDST4 loci may be involved in the regulation of circulating resistin levels. More studies are needed to verify the associations of the SNP rs13144478 with NDST4 gene expression and resistin-related disease.
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Affiliation(s)
- Qibin Qi
- Department of Nutrition, Harvard School of Public Health, Boston, MA, USA
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Liu X, Yang F, Song T, Zeng A, Wang Q, Sun Z, Shen J. Therapeutic effect of carboxymethylated and quanternized chitosan on insulin resistance in high-fat-diet-induced rats and 3T3-L1 adipocytes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:1271-84. [PMID: 21669050 DOI: 10.1163/092050611x579771] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Owing to their distinct biochemical properties, chitosan and its derivatives have a great potential in a range of bioapplications. One such application is as a dietary antilipidemic supplement to be used in reducing obesity and to improve insulin resistance. The lipid-binding efficiency of chitosan and its derivatives, however, remains debatable. Accordingly, in this study we investigated the interaction of chitosan and its two derivatives, O-carboxymethyl chitosan (O-CMCs) and N-[(2-hydroxy-3-N,N-dimethylhexadecyl ammonium)propyl]chitosan chloride (N-CQCs), with plasma leptin, glucose, insulin and total cholesterol in a diet-induced insulin-resistant rat model, and further interaction with mRNA expression of adipocytokines and its related molecule PPAR-γ. The experiments were performed using the RT-PCR technique in cultured 3T3-L1 adipocytes, in which the mRNA expression of leptin, adiponectin, resistin and PPAR-γ was recorded in the absence and presence of chitosan, O-CMCs and N-CQCs. The experimental results proved that chitosan, O-CMCs and N-CQCs not only lowered the level of plasma leptin, glucose, insulin and total cholesterol in vivo, but down-regulated mRNA expression of leptin and resistin, and up-regulated mRNA expression of adiponectin and PPAR-γ in vitro, to achieve the desired insulin resistance therapy.
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Affiliation(s)
- Xiaofei Liu
- a Department of Polymer Materials Science and Engineering , College of Materials Science and Engineering, Tianjin University , Tianjin , 300072 , P. R. China
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Association of the resistin gene promoter region polymorphism with Kawasaki disease in Chinese children. Mediators Inflamm 2012; 2012:356362. [PMID: 22577247 PMCID: PMC3337635 DOI: 10.1155/2012/356362] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 02/02/2012] [Indexed: 01/07/2023] Open
Abstract
Objectives. The −420 C > G polymorphism located in the resistin gene (RETN) promoter has recently been suggested to play a potential role in proinflammatory conditions and cardiovascular disease. This study investigated the association of the RETN promoter polymorphism with Kawasaki disease (KD) and its clinical parameters in Chinese children. Methods. We compared patients with complete KD to incomplete KD children. Genotyping of the RETN promoter polymorphism was performed using MassARRAY system, and serum resistin levels were estimated using the sandwich enzyme immunoassay method. Results. There was no significant difference in RETN (−420 C > G) genotypes between KD and control groups. However, the frequency of the G allele was higher in iKD patients than in cKD children due to a significantly increased frequency of the GG genotypes. Serum levels of resistin were significantly higher in KD patients than in controls regardless of the presence of coronary artery lesions (CALs). Conclusion. The present findings suggest that while resistin may play a role in the pathogenesis of KD, there is no apparent association between CAL and the RETN (−420 C > G) gene polymorphism in KD children. However, the diagnosis of iKD is challenging but can be supported by the presence of the G allele and the GG genotypes.
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Lack of association of serum resistin levels with metabolic syndrome criteria in obese female patients. Clin Biochem 2011; 44:1280-3. [DOI: 10.1016/j.clinbiochem.2011.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 08/31/2011] [Accepted: 09/04/2011] [Indexed: 01/07/2023]
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Kawamura R, Tabara Y, Onuma H, Kawamoto R, Ohashi J, Takata Y, Nishida W, Kohara K, Makino H, Miki T, Osawa H. A single-nucleotide polymorphism in the human THADA gene is associated with circulating resistin in the general Japanese population. Diabetol Int 2011. [DOI: 10.1007/s13340-011-0039-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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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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Onuma H, Tabara Y, Kawamura R, Tanaka T, Ohashi J, Nishida W, Takata Y, Ochi M, Yamada K, Kawamoto R, Kohara K, Miki T, Makino H, Osawa H. A at single nucleotide polymorphism-358 is required for G at -420 to confer the highest plasma resistin in the general Japanese population. PLoS One 2010; 5:e9718. [PMID: 20300528 PMCID: PMC2838794 DOI: 10.1371/journal.pone.0009718] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Accepted: 02/14/2010] [Indexed: 12/20/2022] Open
Abstract
Insulin resistance is a feature of type 2 diabetes. Resistin, secreted from adipocytes, causes insulin resistance in mice. We previously reported that the G/G genotype of single nucleotide polymorphism (SNP) at −420 (rs1862513) in the human resistin gene (RETN) increased susceptibility to type 2 diabetes by enhancing its promoter activity. Plasma resistin was highest in Japanese subjects with G/G genotype, followed by C/G, and C/C. In this study, we cross-sectionally analyzed plasma resistin and SNPs in the RETN region in 2,019 community-dwelling Japanese subjects. Plasma resistin was associated with SNP-638 (rs34861192), SNP-537 (rs34124816), SNP-420, SNP-358 (rs3219175), SNP+299 (rs3745367), and SNP+1263 (rs3745369) (P<10−13 in all cases). SNP-638, SNP -420, SNP-358, and SNP+157 were in the same linkage disequilibrium (LD) block. SNP-358 and SNP-638 were nearly in complete LD (r2 = 0.98), and were tightly correlated with SNP-420 (r2 = 0.50, and 0.51, respectively). The correlation between either SNP-358 (or SNP-638) or SNP-420 and plasma resistin appeared to be strong (risk alleles for high plasma resistin; A at SNP-358, r2 = 0.5224, P = 4.94×10−324; G at SNP-420, r2 = 0.2616, P = 1.71×10−133). In haplotypes determined by SNP-420 and SNP-358, the estimated frequencies for C-G, G-A, and G-G were 0.6700, 0.2005, and 0.1284, respectively, and C-A was rare (0.0011), suggesting that subjects with A at −358, generally had G at −420. This G-A haplotype conferred the highest plasma resistin (8.24 ng/ml difference/allele compared to C-G, P<0.0001). In THP-1 cells, the RETN promoter with the G-A haplotype showed the highest activity. Nuclear proteins specifically recognized one base difference at SNP-358, but not at SNP-638. Therefore, A at -358 is required for G at −420 to confer the highest plasma resistin in the general Japanese population. In Caucasians, the association between SNP-420 and plasma resistin is not strong, and A at −358 may not exist, suggesting that SNP-358 could explain this ethnic difference.
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Affiliation(s)
- Hiroshi Onuma
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
- Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
| | - Yasuharu Tabara
- Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Department of Basic Medical Research and Education, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Ryoichi Kawamura
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Takashi Tanaka
- Laboratory of Molecular Biology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Jun Ohashi
- Doctoral Program in Life System Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Wataru Nishida
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Yasunori Takata
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Masaaki Ochi
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Kazuya Yamada
- Department of Health and Nutritional Science, Faculty of Human Health Science, Matsumoto University, Nagano, Japan
| | - Ryuichi Kawamoto
- Department of Community Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Katsuhiko Kohara
- Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Tetsuro Miki
- Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Hideichi Makino
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Haruhiko Osawa
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan
- Ehime Proteo-Medicine Research Center, Ehime University, Ehime, Japan
- * E-mail:
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Abstract
Worldwide, the prevalence of overweight and obesity and associated complications is increasing. Cardiovascular complications are the most important factor determining survival and influencing clinical management. However, obesity is also associated with an increased risk of metabolic syndrome, type 2 diabetes, cancer and other diseases. The development of complications depends on the amount of body fat and its endocrine function. The hormones (leptin, adiponectin, resistin) and cytokines (TNF alpha, IL-6, PAI-1) produced by the adipose tissue are the link between obesity and obesity-related complications. The present article discusses the structure, function and clinical significance of adipokines.
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Hussain S, Asghar M, Javed Q. Resistin gene promoter region polymorphism and the risk of hypertrophic cardiomyopathy in patients. Transl Res 2010; 155:142-7. [PMID: 20171599 DOI: 10.1016/j.trsl.2009.10.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 10/08/2009] [Accepted: 10/12/2009] [Indexed: 10/20/2022]
Abstract
Resistin, a novel cytokine, is associated with an inflammatory process and is suggested to induce hypertrophy in rat cardiomyocytes. Resistin gene expression has not been investigated in patients with hypertrophic cardiomyopathy (HCM). This study investigates resistin levels in HCM patients and healthy controls and the molecular basis for the regulation of the resistin gene (RETN) in a Pakistani population. Patients with HCM (n = 105) and healthy individuals (n = 110) were enrolled in this investigation. Serum resistin levels were determined by enzyme-linked immunosorbent assay (ELISA). RETN genotyping was performed by polymerase chain reaction (PCR) and DNA sequencing. Our data showed a statistically significant increase in resistin levels from HCM patients compared with healthy subjects (6.3 +/- 2.7 ng/mL in patients vs 3.4 +/- 2.1 ng/mL in controls, P < 0.0001). The RETN -420 C > G polymorphism was significantly high in patients with HCM compared with the control group (P < 0.001). There was a significant difference between the C and G alleles from HCM cases and controls (odds ratio [OR] = 3.54, 95% confidence interval [CI] = 2.36-5.30, P < 0.0001). Logistic-regression analysis showed that the increased resistin levels, and the RETN-420 C > G polymorphism were significantly associated with HCM. Our data suggest that the elevated resistin levels and the RETN -420 C > G polymorphism may be associated with cardiac hypertrophy in the study population.
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Affiliation(s)
- Sabir Hussain
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Asano H, Izawa H, Nagata K, Nakatochi M, Kobayashi M, Hirashiki A, Shintani S, Nishizawa T, Tanimura D, Naruse K, Matsubara T, Murohara T, Yokota M. Plasma resistin concentration determined by common variants in the resistin gene and associated with metabolic traits in an aged Japanese population. Diabetologia 2010; 53:234-46. [PMID: 19727657 DOI: 10.1007/s00125-009-1517-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 08/05/2009] [Indexed: 01/22/2023]
Abstract
AIMS/HYPOTHESIS Resistin is a cytokine derived from adipose tissue and is implicated in obesity-related insulin resistance and type 2 diabetes mellitus. Polymorphisms of the resistin gene (RETN) have been shown to affect the plasma resistin concentration. The aims of this study were to identify polymorphisms of RETN that influence plasma resistin concentration and to clarify the relation between plasma resistin level and metabolic disorders in an aged Japanese cohort. METHODS The study participants comprised 3133 individuals recruited to a population-based prospective cohort study (KING study). Plasma resistin concentration, BMI, abdominal circumference, blood pressure, fasting plasma glucose and serum insulin concentrations, HbA(1c) content and serum lipid profile were measured in all participants. The HOMA index of insulin resistance (HOMA-IR) was also calculated. Eleven polymorphisms of RETN were genotyped. RESULTS A combination of ANOVA and multiple linear regression analysis in screening and large-scale subsets of the study population revealed that plasma resistin concentration was significantly associated with rs34861192 and rs3745368 polymorphisms of RETN. Multiple linear regression analysis with adjustment for age and sex also showed that the plasma resistin level was significantly associated with serum concentrations of HDL-cholesterol, triacylglycerol and insulin, as well as with BMI. CONCLUSIONS/INTERPRETATION Our results implicate the rs34861192 and rs3745368 polymorphisms of RETN as robust and independent determinants of plasma resistin concentration in the study population. In addition, plasma resistin level was associated with dyslipidaemia, serum insulin concentration and obesity. TRIAL REGISTRATION ClinicalTrials.gov NCT00262691.
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Affiliation(s)
- H Asano
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Osawa H, Doi Y, Makino H, Ninomiya T, Yonemoto K, Kawamura R, Hata J, Tanizaki Y, Iida M, Kiyohara Y. Diabetes and hypertension markedly increased the risk of ischemic stroke associated with high serum resistin concentration in a general Japanese population: the Hisayama Study. Cardiovasc Diabetol 2009; 8:60. [PMID: 19922611 PMCID: PMC2790441 DOI: 10.1186/1475-2840-8-60] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Accepted: 11/18/2009] [Indexed: 12/21/2022] Open
Abstract
Background Resistin, secreted from adipocytes, causes insulin resistance in mice. The relationship between resistin and coronary artery disease is highly controversial, and the information regarding resistin and ischemic stroke is limited. In the present study, the association between serum resistin concentration and cardiovascular disease (CVD) was investigated in a general Japanese population. Methods A total of 3,201 community-dwelling individuals aged 40 years or older (1,382 men and 1,819 women) were divided into quintiles of serum resistin, and the association between resistin and CVD was examined cross-sectionally. The combined effect of either diabetes or hypertension and high serum resistin was also assessed. Serum resistin was measured using ELISA. Results Compared to those without CVD, age- and sex-adjusted mean serum resistin concentrations were greater in subjects with CVD (p = 0.002) or ischemic stroke (p < 0.001), especially in those with lacunar and atherothrombotic infarction, but not elevated in subjects with hemorrhagic stroke or coronary heart disease. When analyzed by quintile of serum resistin concentration, the age- and sex-adjusted odds ratio (OR) for having CVD and ischemic stroke increased with quintile of serum resistin (p for trends, 0.02 for CVD, < 0.001 for ischemic stroke), while such associations were not observed for hemorrhagic stroke or coronary heart disease. Compared to the first quintile, the age- and sex-adjusted OR of ischemic stroke was greater in the third (OR = 3.54; 95% confidence interval [CI], 1.17-10.67; p = 0.02), fourth (OR = 4.48; 95% CI, 1.53-13.09; p = 0.006), and fifth quintiles (OR = 4.70; 95% CI, 1.62-13.61; p = 0.004). These associations remained substantially unchanged even after adjustment for other confounding factors including high-sensitivity C-reactive protein. In the stratified analysis, the combination of high serum resistin and either diabetes or hypertension markedly increased the risk of ischemic stroke. Conclusion Elevated serum resistin concentration appears to be an independent risk factor for ischemic stroke, especially lacunar and atherothrombotic infarction in the general Japanese population. The combination of high resistin and the presence of either diabetes or hypertension increased the risk of ischemic stroke.
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Affiliation(s)
- Haruhiko Osawa
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan.
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Diabetes and hypertension markedly increased the risk of ischemic stroke associated with high serum resistin concentration in a general Japanese population: the Hisayama Study. Cardiovasc Diabetol 2009. [PMID: 19922611 DOI: 10.1186/1475-2840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Resistin, secreted from adipocytes, causes insulin resistance in mice. The relationship between resistin and coronary artery disease is highly controversial, and the information regarding resistin and ischemic stroke is limited. In the present study, the association between serum resistin concentration and cardiovascular disease (CVD) was investigated in a general Japanese population. METHODS A total of 3,201 community-dwelling individuals aged 40 years or older (1,382 men and 1,819 women) were divided into quintiles of serum resistin, and the association between resistin and CVD was examined cross-sectionally. The combined effect of either diabetes or hypertension and high serum resistin was also assessed. Serum resistin was measured using ELISA. RESULTS Compared to those without CVD, age- and sex-adjusted mean serum resistin concentrations were greater in subjects with CVD (p = 0.002) or ischemic stroke (p < 0.001), especially in those with lacunar and atherothrombotic infarction, but not elevated in subjects with hemorrhagic stroke or coronary heart disease. When analyzed by quintile of serum resistin concentration, the age- and sex-adjusted odds ratio (OR) for having CVD and ischemic stroke increased with quintile of serum resistin (p for trends, 0.02 for CVD, < 0.001 for ischemic stroke), while such associations were not observed for hemorrhagic stroke or coronary heart disease. Compared to the first quintile, the age- and sex-adjusted OR of ischemic stroke was greater in the third (OR = 3.54; 95% confidence interval [CI], 1.17-10.67; p = 0.02), fourth (OR = 4.48; 95% CI, 1.53-13.09; p = 0.006), and fifth quintiles (OR = 4.70; 95% CI, 1.62-13.61; p = 0.004). These associations remained substantially unchanged even after adjustment for other confounding factors including high-sensitivity C-reactive protein. In the stratified analysis, the combination of high serum resistin and either diabetes or hypertension markedly increased the risk of ischemic stroke. CONCLUSION Elevated serum resistin concentration appears to be an independent risk factor for ischemic stroke, especially lacunar and atherothrombotic infarction in the general Japanese population. The combination of high resistin and the presence of either diabetes or hypertension increased the risk of ischemic stroke.
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Osawa H, Tabara Y, Kawamoto R, Ohashi J, Ochi M, Onuma H, Nishida W, Yamada K, Nakura J, Miki T, Makino H, Kohara K. PPARgamma Pro12Ala Pro/Pro and resistin SNP-420 G/G genotypes are synergistically associated with plasma resistin in the Japanese general population. Clin Endocrinol (Oxf) 2009; 71:341-5. [PMID: 19178525 DOI: 10.1111/j.1365-2265.2008.03465.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The Ala allele of the Pro12Ala polymorphism (rs1801282) of peroxisome proliferator-activated receptor gamma (PPARgamma) is protective against type 2 diabetes (T2DM). Resistin, secreted from adipocytes, causes insulin resistance in rodents. Resistin gene expression is reduced by the PPARgamma ligand. We previously reported that subjects with the G/G genotype of a resistin gene single nucleotide polymorphism (SNP) at -420 (rs1862513) had the highest circulating resistin levels, followed by C/G and C/C. The aim of this study was to determine the relationship among PPARgamma Pro12Ala polymorphism, resistin SNP-420, and plasma resistin. DESIGN, PATIENTS AND MEASUREMENTS We cross-sectionally analysed 2077 community-dwelling subjects attending an annual medical check-up. Genotypes were determined by TaqMan analysis. Fasting plasma resistin was measured using ELISA. RESULTS Plasma resistin appeared to be higher in subjects with the Pro/Pro genotype of PPARgamma than those with Pro/Ala and Ala/Ala genotypes (mean +/- SE, 11.6 +/- 0.2 vs. 10.4 +/- 0.5 microg/l). Multiple regression analysis, adjusted for age, gender, BMI, and resistin SNP-420, revealed that the Pro/Pro genotype was a positive predictor of plasma resistin (PPARgamma , Pro/Pro vs. Pro/Ala + Ala/Ala, unstandardized regression coefficient (beta) = 1.03, P = 0.0384). The effects of the Pro/Pro genotype of PPARgamma (Pro/Pro vs. Pro/Ala + Ala/Ala) and the G/G genotype of resistin SNP-420 (G/G vs. C/C) on plasma resistin were synergistic (beta = 4.76, P = 0.011). CONCLUSIONS The PPARgamma Pro12Ala Pro/Pro and resistin SNP-420 G/G genotypes were synergistically associated with plasma resistin, when adjusted for age, gender, and BMI, in the Japanese general population.
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Affiliation(s)
- Haruhiko Osawa
- Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
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Wågsäter D, Mumtaz M, Löfgren S, Hugander A, Dimberg J. Resistin in Human Colorectal Cancer: Increased Expression Independently of Resistin Promoter −420C > G genotype. Cancer Invest 2009; 26:1008-14. [DOI: 10.1080/07357900802087267] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Tsukahara T, Nakashima E, Watarai A, Hamada Y, Naruse K, Kamiya H, Nakamura N, Kato N, Hamajima N, Sekido Y, Niwa T, Tomita M, Oiso Y, Nakamura J. Polymorphism in resistin promoter region at -420 determines the serum resistin levels and may be a risk marker of stroke in Japanese type 2 diabetic patients. Diabetes Res Clin Pract 2009; 84:179-86. [PMID: 19269054 DOI: 10.1016/j.diabres.2008.10.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 10/09/2008] [Accepted: 10/14/2008] [Indexed: 12/16/2022]
Abstract
Resistin, which appears to be related to insulin resistance, is secreted mainly from macrophages in human and some of its polymorphisms have been reported. Based on recent in vitro studies, resistin may be associated with atherosclerosis by mediating endothelial hyperactivity. We investigated whether resistin polymorphism at -420C>G is associated with serum resistin levels and diabetic macroangiopathy (coronary heart disease, arteriosclerosis obliterans, and stroke) in 349 Japanese type 2 diabetic patients (DM) and 286 non-diabetic controls (non-DM). Serum resistin levels in DM with a history of stroke were significantly higher than those without, 19.6+/-2.1 and 12.4+/-0.5 ng/ml (P<0.001), respectively. Furthermore, the levels were significantly increased in a genotype-dependent manner (CC, CG, GG) based on the polymorphism at -420C>G (P<0.001) in both DM and non-DM. The prevalence of stroke in DM significantly increased according to the presence of mutations (P<0.035). In multivariate logistic-regression analysis, individuals with the CG or GG genotypes were significantly more likely to have had a stroke than individuals with the CC genotype (vs. CG; OR 2.99, P=0.024, vs. GG; OR 4.49, P=0.010). These data suggested that the genotyping of resistin polymorphism at -420(C>G) can be a risk marker for stroke susceptibility in Japanese type 2 diabetic patients.
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Affiliation(s)
- Takayoshi Tsukahara
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
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Hivert MF, Manning AK, McAteer JB, Dupuis J, Fox CS, Cupples LA, Meigs JB, Florez JC. Association of variants in RETN with plasma resistin levels and diabetes-related traits in the Framingham Offspring Study. Diabetes 2009; 58:750-6. [PMID: 19074981 PMCID: PMC2646076 DOI: 10.2337/db08-1339] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE The RETN gene encodes the adipokine resistin. Associations of RETN with plasma resistin levels, type 2 diabetes, and related metabolic traits have been inconsistent. Using comprehensive linkage disequilibrium mapping, we genotyped tag single nucleotide polymorphisms (SNPs) in RETN and tested associations with plasma resistin levels, risk of diabetes, and glycemic traits. RESEARCH DESIGN AND METHODS We examined 2,531 Framingham Offspring Study participants for resistin levels, glycemic phenotypes, and incident diabetes over 28 years of follow-up. We genotyped 21 tag SNPs that capture common (minor allele frequency >0.05) or previously reported SNPs at r2 > 0.8 across RETN and its flanking regions. We used sex- and age-adjusted linear mixed-effects models (with/without BMI adjustment) to test additive associations of SNPs with traits, adjusted Cox proportional hazards models accounting for relatedness for incident diabetes, and generated empirical P values (Pe) to control for type 1 error. RESULTS Four tag SNPs (rs1477341, rs4804765, rs1423096, and rs10401670) on the 3' side of RETN were strongly associated with resistin levels (all minor alleles associated with higher levels, Pe<0.05 after multiple testing correction). rs10401670 was also associated with fasting plasma glucose (Pe = 0.02, BMI adjusted) and mean glucose over follow-up (Pe = 0.01; BMI adjusted). No significant association was observed for adiposity traits. On meta-analysis, the previously reported association of SNP -420C/G (rs1862513) with resistin levels remained significant (P = 0.0009) but with high heterogeneity across studies (P < 0.0001). CONCLUSIONS SNPs in the 3' region of RETN are associated with resistin levels, and one of them is also associated with glucose levels, although replication is needed.
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Affiliation(s)
- Marie-France Hivert
- General Medicine Division, Massachusetts General Hospital, Boston, Massachusetts, USA
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Qatanani M, Szwergold NR, Greaves DR, Ahima RS, Lazar MA. Macrophage-derived human resistin exacerbates adipose tissue inflammation and insulin resistance in mice. J Clin Invest 2009; 119:531-9. [PMID: 19188682 DOI: 10.1172/jci37273] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2008] [Accepted: 12/08/2008] [Indexed: 01/06/2023] Open
Abstract
Resistin is an adipokine that contributes to insulin resistance in mice. In humans, however, studies investigating the link between resistin and metabolic disease are conflicting. Further complicating the matter, human resistin is produced mainly by macrophages rather than adipocytes. To address this important issue, we generated mice that lack adipocyte-derived mouse resistin but produce human resistin in a pattern similar to that found in humans, i.e., in macrophages (humanized resistin mice). When placed on a high-fat diet, the humanized resistin mice rapidly developed accelerated white adipose tissue (WAT) inflammation, leading to increased lipolysis and increased serum free fatty acids. Over time, these mice accumulated lipids, including diacylglycerols, in muscle. We found that this resulted in increased Pkcq pathway activity, leading to increased serine phosphorylation of Irs-1 and insulin resistance. Thus, although the site of resistin production differs between species, human resistin exacerbates WAT inflammation and contributes to insulin resistance.
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Affiliation(s)
- Mohammed Qatanani
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, and Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104-6149, USA
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Tomaru T, Steger DJ, Lefterova MI, Schupp M, Lazar MA. Adipocyte-specific expression of murine resistin is mediated by synergism between peroxisome proliferator-activated receptor gamma and CCAAT/enhancer-binding proteins. J Biol Chem 2009; 284:6116-25. [PMID: 19126543 DOI: 10.1074/jbc.m808407200] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Resistin antagonizes insulin action in mouse, making it a potential therapeutic target for treating metabolic diseases such as diabetes. To better understand how mouse resistin gene (Retn) expression is restricted to fat tissue, we identified an adipocyte-specific enhancer located approximately 8.8-kb upstream of the transcription start site. This region contains a binding site for the master adipogenic regulator peroxisome proliferator-activated receptor gamma (PPARgamma), and binds endogenous PPARgamma together with its partner retinoid-X receptor alpha (RXRalpha). It also contains three binding sites for CCAAT/enhancer-binding protein (C/EBP), and is bound by endogenous C/EBPalpha and C/EBPbeta in adipocytes. Exogenous expression of PPARgamma/RXRalpha and C/EBPalpha in non-adipocyte cells synergistically drives robust expression from the enhancer. Although PPARgamma ligands repress Retn transcription in adipocytes, rosiglitazone paradoxically stimulates the enhancer activity, suggesting that the enhancer is not directly involved in negative regulation. Unlike expression of Retn in mouse, human resistin (RETN) is expressed primarily in macrophages. Interestingly, the region homologous to the mouse Retn enhancer in the human gene contains all three C/EBP elements, but is not conserved for the sequence bound by PPARgamma. Furthermore, it displays little or no binding by PPARgamma in vitro. Taken together, the data suggest that a composite enhancer binding both PPARgamma and C/EBP factors confers adipocyte-specific expression to Retn in mouse, and its absence from the human gene may explain the lack of adipocyte expression in humans.
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Affiliation(s)
- Takuya Tomaru
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, The Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104-6149, USA
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Makino H, Shimizu I, Murao S, Kondo S, Tabara Y, Fujiyama M, Fujii Y, Takada Y, Nakai K, Izumi K, Ohashi J, Kawamura R, Yamauchi J, Takata Y, Nishida W, Hashiramoto M, Onuma H, Osawa H. A pilot study suggests that the G/G genotype of resistin single nucleotide polymorphism at -420 may be an independent predictor of a reduction in fasting plasma glucose and insulin resistance by pioglitazone in type 2 diabetes. Endocr J 2009; 56:1049-58. [PMID: 19738363 DOI: 10.1507/endocrj.k08e-320] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to determine the relation between the G/G genotype of a resistin gene promoter single nucleotide polymorphism (SNP) at -420 (rs1862513) and glycemic control by pioglitazone in type 2 diabetes. In Study 1, 121 type 2 diabetic patients were treated with pioglitazone (15 or 30 mg/day) for 12 weeks, in addition to previous medication. In Study 2, 63 patients who had been treated with pioglitazone for 12 weeks were examined retrospectively. In Study 1, multiple regression analysis revealed that the G/G but not C/G genotype was correlated with a reduction in fasting plasma glucose (FPG) and homeostasis model assessment of insulin resistance (HOMA-IR) compared to C/C. When adjusted for age, gender, and BMI, the G/G genotype was an independent factor for the reduction of FPG (P=0.020) and HOMA-IR (P =0.012). When studies 1 and 2 were combined by adjusting the studies, age, gender, and BMI, the reduction of HbA1c was correlated with the G/G genotype (beta=-0.511, P=0.044). Therefore, this pilot study suggests that the G/G genotype of resistin SNP -420 may be an independent predictor of the reduction of fasting plasma glucose and HOMA-IR by pioglitazone.
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Affiliation(s)
- Hideichi Makino
- Institute of Diabetes Research Center, Takanoko Hospital, Ehime, Japan.
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MANOLESCU BOGDAN, STOIAN IRINA, ATANASIU VALERIU, BUSU CARMINA, LUPESCU OLIVERA. Review article: The role of adipose tissue in uraemia-related insulin resistance. Nephrology (Carlton) 2008; 13:622-8. [DOI: 10.1111/j.1440-1797.2008.01022.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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