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Lyu H, Sugita N, Komatsu S, Wakasugi M, Yokoseki A, Yoshihara A, Kobayashi T, Sato K, Kawashima H, Onodera O, Narita I, Tabeta K. UCP2 polymorphisms, daily step count, and number of teeth associated with all-cause mortality risk in Sado City: A hospital-based cohort study. Heliyon 2024; 10:e32512. [PMID: 38952382 PMCID: PMC11215260 DOI: 10.1016/j.heliyon.2024.e32512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 05/13/2024] [Accepted: 06/05/2024] [Indexed: 07/03/2024] Open
Abstract
Objective Uncoupling protein 2 (UCP2) is an ion/anion transporter in the mitochondrial inner membrane that plays a crucial role in immune response, regulation of oxidative stress, and cellular metabolism. UCP2 polymorphisms are linked to chronic inflammation, obesity, diabetes, heart disease, exercise efficiency, and longevity. Daily step count and number of teeth are modifiable factors that reduce mortality risk, although the role of UCP2 in this mechanism is unknown. This study aimed to assess the possible effects of UCP2 polymorphisms on the association between daily step count and number of teeth with all-cause mortality. Methods This study was conducted as a cohort project involving adult Japanese outpatients at Sado General Hospital (PROST). The final number of participants was 875 (mean age: 69 y). All-cause mortality during thirteen years (from June 2008 to August 2021) was recorded. The functional UCP2 genotypes rs659366 and rs660339 were identified using the Japonica Array®. Survival analyses were performed using multivariate Cox proportional hazard models. Results There were 161 deaths (mean observation period: 113 months). Age, sex, daily step count, and the number of teeth were significantly associated with mortality. In females, UCP2 polymorphisms were associated with mortality independent of other factors (rs659366 GA compared to GG + AA; HR = 2.033, p = 0.019, rs660339 C T compared to CC + TT; HR = 1.911, p = 0.029). Multivariate models, with and without UCP2 genotypes, yielded similar results. The interaction terms between UCP2 genotype and daily step count or number of teeth were not significantly associated with mortality. Conclusion The effects of UCP2 polymorphisms on the association between daily step count or the number of teeth and all-cause mortality were not statistically significant. In females, UCP2 polymorphisms were significantly associated with all-cause mortality. Our findings confirmed the importance of physical activity and oral health and suggested a role of UCP2 in mortality risk independently with those factors.
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Affiliation(s)
- Han Lyu
- Division of Periodontology, Department of Oral Biological Science, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Noriko Sugita
- Division of Periodontology, Department of Oral Biological Science, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | | | - Minako Wakasugi
- Department of Inter-Organ Communication Research, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Akio Yokoseki
- Department of Inter-Organ Communication Research, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Akihiro Yoshihara
- Division of Oral Science and Health Promotion, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Tetsuo Kobayashi
- Division of Periodontology, Department of Oral Biological Science, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
- General Dentistry and Clinical Education Unit, Faculty of Dentistry & Medical and Dental Hospital, Niigata University, Niigata, Japan
| | | | - Hiroyuki Kawashima
- Division of Orthopedic Surgery, Niigata University Graduate School of Medical and Dental Science, Niigata, Japan
| | - Osamu Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Ichiei Narita
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Koichi Tabeta
- Division of Periodontology, Department of Oral Biological Science, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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Koshenov Z, Oflaz FE, Hirtl M, Bachkoenig OA, Rost R, Osibow K, Gottschalk B, Madreiter-Sokolowski CT, Waldeck-Weiermair M, Malli R, Graier WF. The contribution of uncoupling protein 2 to mitochondrial Ca 2+ homeostasis in health and disease - A short revisit. Mitochondrion 2020; 55:164-173. [PMID: 33069910 DOI: 10.1016/j.mito.2020.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/30/2020] [Accepted: 10/12/2020] [Indexed: 12/18/2022]
Abstract
Considering the versatile functions attributed to uncoupling protein 2 (UCP2) in health and disease, a profound understanding of the protein's molecular actions under physiological and pathophysiological conditions is indispensable. This review aims to revisit and shed light on the fundamental molecular functions of UCP2 in mitochondria, with particular emphasis on its intricate role in regulating mitochondrial calcium (Ca2+) uptake. UCP2's modulating effect on various vital processes in mitochondria makes it a crucial regulator of mitochondrial homeostasis in health and disease.
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Affiliation(s)
- Zhanat Koshenov
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria
| | - Furkan E Oflaz
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria
| | - Martin Hirtl
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria
| | - Olaf A Bachkoenig
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria
| | - Rene Rost
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria
| | - Karin Osibow
- Diagnostic and Research Institute for Pathology, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; Department of Health Sciences and Technology, ETH Zurich, Schorenstraße 16, 8603 Schwerzenbach, Switzerland
| | - Benjamin Gottschalk
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria
| | - Corina T Madreiter-Sokolowski
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria; Diagnostic and Research Institute for Pathology, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria
| | - Markus Waldeck-Weiermair
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria; Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Roland Malli
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria; BioTechMed, Graz, Austria
| | - Wolfgang F Graier
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria; BioTechMed, Graz, Austria.
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Posadas-Sánchez R, Del Carmen González-Salazar M, Cardoso-Saldaña G, Andrés Criales-Vera S, Reyes-Barrera J, Pérez-Hernández N, Manuel Fragoso J, Vargas-Alarcón G. Epstein-Barr virus-induced gene 3 (EBI3) single nucleotide polymorphisms and their association with central obesity and risk factors for cardiovascular disease: The GEA study. Cytokine 2020; 135:155225. [PMID: 32763760 DOI: 10.1016/j.cyto.2020.155225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/01/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022]
Abstract
Obesity, a chronic low-grade inflammation metabolic abnormality, is related to high proinflammatory cytokines concentrations. Epstein-Barr virus-induced gene 3 (EBI3) encodes for the EBI3 beta subunit that constitutes interleukin (IL) 27 and 35. Our objective was to assess the association of three EBI3 single nucleotide polymorphisms (SNPs) with the presence of central obesity in a group of Mexican subjects. The rs428253, rs4740, and rs4905 EBI3 SNPs were genotyped in 1323 individuals (1092 central obese and 231 non-central obese). We also analyzed IL-6, IL-27, and IL-35 concentrations. Under different models, the rs4740 (OR = 0.384, Precessive = 0.010; OR = 0.404, Pcodominant 2 = 0.019) and rs4905 (OR = 0.380, Precessive = 0.009; OR = 0.404, Pcodominant 2 = 0.018) were related with a low risk of central obesity. In central obese subjects, the SNPs were related to lower risk of hypoalphalipoproteinemia (rs4740) and with high IL-6 concentrations (rs428253, rs4740, and rs4905), whereas in non-central obese individuals, the rs428253 was related with low risk of increased visceral abdominal fat and hypertriglyceridemia. Interleukin-6, IL-27 and IL-35 concentrations were similar in both groups and no relation was noticed with the studied genotypes. Our results suggest an association of EBI3 SNPs with a low risk of central obesity and with a few risk factors for cardiovascular disease in individuals with and without central obesity.
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Affiliation(s)
- Rosalinda Posadas-Sánchez
- Department of Endocrinology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | | | - Guillermo Cardoso-Saldaña
- Department of Endocrinology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | | | - Juan Reyes-Barrera
- Department of Endocrinology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | - Nonanzit Pérez-Hernández
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | - José Manuel Fragoso
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | - Gilberto Vargas-Alarcón
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico.
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Pascual-Gamarra JM, Salazar-Tortosa D, Martinez-Tellez B, Labayen I, Rupérez AI, Censi L, Manios Y, Nova E, Gesteiro E, Moreno LA, Meirhaeghe A, Ruiz JR. Association between UCP1, UCP2, and UCP3 gene polymorphisms with markers of adiposity in European adolescents: The HELENA study. Pediatr Obes 2019; 14:e12504. [PMID: 30659763 DOI: 10.1111/ijpo.12504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 11/15/2018] [Accepted: 12/03/2018] [Indexed: 11/27/2022]
Abstract
AIMS To examine the association between UCP1, UCP2, and UCP3 gene polymorphisms with adiposity markers in European adolescents and to test if there were gene interactions with objectively measured physical activity and adiposity. METHODS A cross-sectional study that involves 1.057 European adolescents (12-18 years old) from the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study. A total of 18 polymorphisms in UCP1, UCP2, and UCP3 genes were genotyped. We measured weight, height, waist, and hip circumferences and triceps and subscapular skinfold thickness. Physical activity was objectively measured by accelerometry during 7 days. RESULTS The C allele of the UCP1 rs6536991 polymorphism was associated with a lower risk of overweight (odds ratio [OR]: T/C + C/C vs T/T) = 0.72; 95% confidence interval [CI]: 0.53-0.98; P = 0.034; false discovery rate [FDR] = 0.048). There was a significant interaction between UCP1 rs2071415 polymorphism and physical activity with waist-to-hip ratio (P = 0.006; FDR = 0.026). Adolescents who did not meet the physical activity recommendations (less than 60 min/day of moderate to vigorous physical activity) and carrying the C/C genotype had higher waist-to-hip ratio (+ 0.067; 95% CI, 0.028-0.106; P = 0.003), while no differences across genotypes were observed in adolescents meeting the recommendations. CONCLUSIONS Two UCP1 polymorphisms were associated with adiposity in European adolescents. Meeting the daily physical activity recommendations may overcome the effect of the UCP1 rs2071415 polymorphism on obesity-related traits.
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Affiliation(s)
- Jose Miguel Pascual-Gamarra
- PROFITH "PROmotingFITness and Healththroughphysicalactivity" researchgroup. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Diego Salazar-Tortosa
- Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain.,Department of Ecology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Borja Martinez-Tellez
- PROFITH "PROmotingFITness and Healththroughphysicalactivity" researchgroup. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Idoia Labayen
- Institute for Innovation & Sustainable Development in Food Chain (IS-FOOD), Public University of Navarra, Pamplona, Spain
| | - Azahara I Rupérez
- Department of Health Sciences, Public University of Navarra, Pamplona, Spain
| | - Laura Censi
- Department of Applied Science of Nutrition, CREA (Council for Agricultural Research and Economics)-Research Center for Food and Nutrition, Rome, Italy
| | - Yannis Manios
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Esther Nova
- Immunonutrition Group, Institute of Food Science, Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain.,Departamento de Metabolismo y Nutrición, Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERObn), Madrid, Spain
| | - Eva Gesteiro
- Departamento de Salud y Rendimiento humano, Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERObn), Madrid, Spain.,ImFine Research Group, Facultad de Ciencias de la Actividad Física y del Deporte-INEF, Universidad Politécnica de Madrid, Madrid, Spain
| | - Luis A Moreno
- Department of Health Sciences, Public University of Navarra, Pamplona, Spain
| | - Aline Meirhaeghe
- Inserm, Institut Pasteur de Lille, Univ. Lille, UMR1167-RID-AGE-Risk factors and molecular determinants of aging-related diseases, Lille, France
| | - Jonatan R Ruiz
- PROFITH "PROmotingFITness and Healththroughphysicalactivity" researchgroup. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Dep. of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Sweden
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5
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Wang N, Zhao TT, Li SM, Sun X, Li ZC, Li YH, Li DS, Wang WF. Fibroblast Growth Factor 21 Exerts its Anti-inflammatory Effects on Multiple Cell Types of Adipose Tissue in Obesity. Obesity (Silver Spring) 2019; 27:399-408. [PMID: 30703283 DOI: 10.1002/oby.22376] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/21/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Obesity-related, chronic, low-grade inflammation has been identified as a key factor in the development of many metabolic diseases, such as type 2 diabetes and cardiovascular diseases. Adipocytes, preadipocytes, and macrophages have been implicated in initiating inflammation in adipose tissue. This study aims to investigate the effects of fibroblast growth factor-21 (FGF-21) on obesity-related inflammation and its mechanisms in vivo and in vitro. METHODS Monosodium glutamate (MSG) was used to induce obesity in mice and subsequently treated the mice with or without FGF-21. Primary adipocytes and stromal vascular fraction cells were isolated from MSG-obesity mice for additional experiments. RESULTS Results obtained by ELISA and real-time polymerase chain reaction showed that FGF-21 efficiently ameliorated obesity-related inflammation in MSG-obesity mice. This study demonstrated that preadipocytes and adipocytes responded to anti-inflammatory effects of FGF-21. In vitro, 3 T3-L1 preadipocytes lacking β-klotho did not respond to FGF-21 under glucose uptake. Interestingly, the treatment of 3 T3-L1 preadipocytes with FGF-21 significantly attenuated lipopolysaccharide-induced inflammatory response. CONCLUSIONS Our study showed that FGF-21-induced glucose uptake and FGF-21-related anti-inflammatory effects are mediated by different signaling pathways. Moreover, FGF-21 showed anti-inflammatory effects on preadipocytes; these effects are mediated by the fibroblast growth factor receptor substrate 2/ERK1/2 signaling pathway.
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Affiliation(s)
- Nan Wang
- School of Life Science, Northeast Agricultural University, Harbin, China
| | - Ting-Ting Zhao
- Aier School of Ophthalmology, Central South University, Changsha, China
- Aier Eye Hospital Group, Harbin, China
| | - Si-Ming Li
- College of Pharmacy, Harbin University of Commerce, Harbin, China
| | - Xu Sun
- School of Life Science, Northeast Agricultural University, Harbin, China
| | - Zi-Cheng Li
- School of Life Science, Northeast Agricultural University, Harbin, China
| | - Yan-Hua Li
- School of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - De-Shan Li
- School of Life Science, Northeast Agricultural University, Harbin, China
| | - Wen-Fei Wang
- School of Life Science, Northeast Agricultural University, Harbin, China
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6
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Batista GA, de Souza AL, Marin DM, Sider M, Melhado VC, Fernandes AM, Alegre SM. Body composition, resting energy expenditure and inflammatory markers: impact in users of depot medroxyprogesterone acetate after 12 months follow-up. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2017; 61:70-75. [PMID: 27598979 PMCID: PMC10522120 DOI: 10.1590/2359-3997000000202] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 03/07/2016] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate for 12 months the changes of body weight using Depot Medroxyprogesterone Acetate (DMPA) and if these changes are related to inflammatory markers. SUBJECTS AND METHODS Twenty women of childbearing age who chose the DMPA, without previous use of this method, BMI < 30 kg/m2, and 17 women using IUD TCu 380A, participated in the study. At the baseline and after one year, changes in weight gain, body composition by the bioimpedance electric method, resting energy expenditure (REE) by the indirect calorimetry method, inflammatory markers and HOMA-IR were assessed. RESULTS After 12 months of evaluation, we could observe a significant increase in the DMPA group in weight (3,01 kg) and BMI, while the IUD group's only significant increase was observed in the BMI. Relative to REE there was an increase of basal metabolic rate (BMR) in both groups after one year. The sub-group DMPA that gained < 3 kg had increased significant weight, BMI and body surface (BS) with respiratory quotient (RQ) reduction, while the sub-group that gained ≥ 3 kg had a significant increase in weight, BMI, BS, fat-free mass, fat mass, BMR, Leptin, HOMA-IR and waist circumference, with RQ significantly reduced. CONCLUSION Our study found significant changes in weight, body composition and metabolic profile of the population studied in the first 12 months of contraceptive use. These changes mainly increased body weight, leptin levels and HOMA-IR which can contribute to the development of some chronic complications, including obesity, insulin resistance and diabetes mellitus.
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Affiliation(s)
- Gisele Almeida Batista
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
| | - Aglécio Luiz de Souza
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
| | - Daniela Miguel Marin
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
| | - Marina Sider
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
| | - Vaneska Carvalho Melhado
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
| | - Arlete Maria Fernandes
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
| | - Sarah Monte Alegre
- Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasSPBrasilFaculdade de Ciências Médicas, Universidade Estadual de Campinas (FCM-Unicamp), Campinas, SP, Brasil
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7
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Wang WF, Li SM, Ren GP, Zheng W, Lu YJ, Yu YH, Xu WJ, Li TH, Zhou LH, Liu Y, Li DS. Recombinant murine fibroblast growth factor 21 ameliorates obesity-related inflammation in monosodium glutamate-induced obesity rats. Endocrine 2015; 49:119-29. [PMID: 25306889 DOI: 10.1007/s12020-014-0433-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 09/19/2014] [Indexed: 12/30/2022]
Abstract
The aim of this study is to investigate the role of FGF21 in obesity-related inflammation in livers of monosodium glutamate (MSG)-induced obesity rats. The MSG rats were injected with recombinant murine fibroblast growth factor 21(FGF21) or equal volumes of vehicle. Metabolic parameters including body weight, Lee's index, food intake, visceral fat and liver weight, intraperitoneal glucose tolerance, glucose, and lipid levels were dynamically measured at specific time points. Liver function and routine blood test were also analyzed. Further, systemic inflammatory cytokines such as glucose transporter 1 (GLUT-1), leptin, TNF-α, and IL-6 mRNAs were determined by real-time PCR. FGF21 independently decreased body weight and whole-body fat mass without reducing food intake in the MSG rats. FGF21 reduced blood glucose level, Lee's index, visceral fat, and liver weight, and improved glucose tolerance, lipid metabolic spectrum, and hepatic steatosis in the MSG-obesity rats. Liver function parameters including AST, ALT, ALP, TP, T.Bili, and D.Bili levels significantly reduced in the FGF21-treated obesity rats compared to the controls. Further, FGF21 ameliorated the total and differential white blood cell (WBC) count, serum C-reactive protein (CRP), IL-6, and TNF-α levels in adipose tissues of the obesity rats, suggesting inflammation amelioration in the in the obesity rats by FGF21. FGF21 improves multiple metabolic disorders and ameliorates obesity-related inflammation in the MSG-induced obesity rats.
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Affiliation(s)
- Wen-Fei Wang
- College of Life Science, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin, 150030, China
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8
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Liu Z, Xie J, Luo T, Zhang T, Zhao X, Zhao H, Li P. An epidemiologic study of mitochondrial membrane transporter protein gene polymorphism and risk factors for neural tube defects in Shanxi, China. Neural Regen Res 2015; 7:463-9. [PMID: 25774190 PMCID: PMC4350134 DOI: 10.3969/j.issn.1673-5374.2011.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 12/02/2011] [Indexed: 01/25/2023] Open
Abstract
The present study involved a questionnaire survey of 156 mothers that gave birth to children with neural tube defects or had a history of pregnancy resulting in children with neural tube defects (case group) and 156 control mothers with concurrent healthy children (control group) as well as detection of mitochondrial membrane transporter protein gene [uncoupling protein 2 (UCP2)] polymorphism. The maternal UCP2 3’ untranslated region (UTR) D/D genotype and D allele frequency were significantly higher in the case group compared with the control group (odds ratio (OR) 3.233; 95% confidence interval (CI) 1.103–9.476; P = 0.040; OR: 3.484; 95% CI: for neural tube defects 2.109–5.753; P < 0.001). Univariate and multivariate logistic regression analysis of risk factors for neural tube defects showed that a maternal UCP2 3’ UTR D/D genotype was negatively interacted with the mothers’ consumption of frequent fresh fruit and vegetables (S = 0.007), positively interacted with the mothers’ frequency of germinated potato consumption (S = 2.15) and positively interacted with the mothers’ body mass index (S = 3.50). These findings suggest that maternal UCP2 3’ UTR gene polymorphism, pregnancy time, consumption of germinated potatoes and body mass index are associated with an increased risk for neural tube defects in children from mothers living in Shanxi province, China. Moreover, there is an apparent gene-environment interaction involved in the development of neural tube defects in offspring.
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Affiliation(s)
- Zhizhen Liu
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Jun Xie
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Tian'e Luo
- Department of Epidemiology and Statistics, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Tao Zhang
- Shanghai Yangpu District Center for Disease Control and Prevention, Shanghai 200093, China
| | - Xia Zhao
- Department of Physical and Chemical Detection, Shanxi Centre for Disease Control and Prevention, Taiyuan 030001, Shanxi Province, China
| | - Hong Zhao
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Peizhen Li
- Department of Epidemiology, Zhuhai Campus of Zunyi Medical College, Zhuhai 519041, Guangdong Province, China
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9
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Brondani LDA, de Almeida Brondani L, de Souza BM, Assmann TS, Bouças AP, Bauer AC, Canani LH, Crispim D. Association of the UCP polymorphisms with susceptibility to obesity: case-control study and meta-analysis. Mol Biol Rep 2014; 41:5053-67. [PMID: 24752406 DOI: 10.1007/s11033-014-3371-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 04/05/2014] [Indexed: 12/25/2022]
Abstract
This paper describes a case-control study and a meta-analysis performed to evaluate if the following polymorphisms are associated with presence of obesity: -3826A/G (UCP1); -866G/A, Ala55Val and Ins/Del (UCP2) and -55C/T (UCP3). The case-control study enrolled 282 obese and 483 non-obese patients with type 2 diabetes. A literature search was made to identify all studies that evaluated associations between UCP1-3 polymorphisms and obesity. In the case-control study the distributions of the UCP variants did not differ between obese and non-obese groups (P > 0.05). Forty-seven studies were eligible for the meta-analysis and the results showed that the UCP2 -866G/A and UCP3 -55C/T polymorphisms were associated with protection to obesity in Europeans (OR = 0.89, 95% CI 0.82-0.97 and OR = 0.88, 95% CI 0.80-0.97, respectively). The UCP2 Ala55 val polymorphism was associated with obesity in Asians (OR = 1.61, 95% CI 1.13-2.30). The UCP2 Ins/Del polymorphism was associated with obesity mainly in Europeans (OR = 1.19, 95% CI 1.00-1.42). There was no significant association of the UCP1 -3826A/G polymorphism with obesity. In our case-control study we were not able to demonstrate any association between UCP polymorphisms and obesity in T2DM patients; however, in the meta-analysis we detected a significant association of UCP2 -866G/A, Ins/Del, Ala55Val and UCP3 -55C/T polymorphisms with obesity.
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Zhang M, Wang M, Zhao ZT. Uncoupling protein 2 gene polymorphisms in association with overweight and obesity susceptibility: A meta-analysis. Meta Gene 2014; 2:143-59. [PMID: 25606398 PMCID: PMC4287797 DOI: 10.1016/j.mgene.2013.10.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A meta-analysis was performed to evaluate the associations of uncoupling protein 2 (UCP2) gene polymorphisms (Ala55Val, 45-bp insertion/deletion, and -866G/A) with overweight and obesity. A total of 42 studies were included in our analysis. Pooled effect estimates and 95% confidential intervals of each polymorphism were calculated under different inherited models. Fixed or random effect model was selected based on the between-study heterogeneity evaluated with I2. Source of heterogeneity was explored by subgroup analysis and meta-regression analysis. Potential publication bias was assessed using funnel plot and Peters test. After excluding studies that deviated from the Hardy–Weinberg equilibrium, T allele of Ala55Val polymorphism was associated with an increased risk of overweight and obesity under recessive model in the overall (OR = 1.24, 95%CI = 1.06–1.45) and Asian (OR = 1.28, 95%CI = 1.06–1.55) populations; and A allele of -866G/A polymorphism had a protective effect on overweight and obesity, especially for European populations (dominant model: OR = 0.88, 95%CI = 0.81–0.96, co-dominant 1 model: OR = 0.89, 95%CI = 0.81–0.98, co-dominant 2 model: OR = 0.85, 95%CI = 0.74–0.94, additive model: OR = 0.88, 95%CI = 0.80–0.95, and allelic model: OR = 0.91, 95%CI = 0.86–0.97). No evidence was observed in the association of 45-bp insertion/deletion polymorphism with overweight and obesity susceptibility. We failed to fully explore the between-study heterogeneity regarding the association of Ala55Val polymorphism with overweight and obesity. Further studies are required to provide more convincing evidence. We evaluated the association of UCP2 gene polymorphisms with overweight and obesity. Ala55Val polymorphism was associated with an increased risk in Asian populations. No association was observed for 45-bp insertion/deletion polymorphism. -866G/A polymorphism was associated with a decreased risk in European populations.
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Affiliation(s)
- Meng Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong University, 44 Wenhua Xi Road, Ji'nan, Shandong 250012, China
| | - Meng Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong University, 44 Wenhua Xi Road, Ji'nan, Shandong 250012, China
| | - Zhong-Tang Zhao
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong University, 44 Wenhua Xi Road, Ji'nan, Shandong 250012, China
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Zhang M, Wang M, Zhao ZT. WITHDRAWN: Uncoupling protein 2 gene polymorphisms in association with overweight and obesity susceptibility: A meta-analysis. Gene 2013:S0378-1119(13)01024-X. [PMID: 23939465 DOI: 10.1016/j.gene.2013.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 07/28/2013] [Accepted: 08/02/2013] [Indexed: 10/26/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Meng Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong University, 44 Wenhua Xi Road, Ji'nan, Shandong 250012, China
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Qian L, Xu K, Xu X, Gu R, Liu X, Shan S, Yang T. UCP2 -866G/A, Ala55Val and UCP3 -55C/T polymorphisms in association with obesity susceptibility - a meta-analysis study. PLoS One 2013; 8:e58939. [PMID: 23560041 PMCID: PMC3613358 DOI: 10.1371/journal.pone.0058939] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Accepted: 02/11/2013] [Indexed: 12/12/2022] Open
Abstract
AIMS/HYPOTHESIS Variants of UCP2 and UCP3 genes have been reported to be associated with obesity, but the available data on the relationship are inconsistent. A meta-analysis was performed to determine whether there are any associations between the UCP2 -866G/A, Ala55Val, and UCP3 -55C/T polymorphisms and obesity susceptibility. METHODS The PubMed, Embase, Web of Science and CNKI, CBMdisc databases were searched for all relevant case-control studies. The fixed or random effect pooled measure was determined on the bias of heterogeneity test among studies. Publication bias was examined by the modified Begg's and Egger's test. RESULTS Twenty-two published articles with thirty-two outcomes were included in the meta-analysis: 12 studies with a total of 7,390 cases and 9,860 controls were analyzed for UCP2 -866G/A polymorphism with obesity, 9 studies with 1,483 cases and 2,067 controls for UCP2 Ala55Val and 8 studies with 2,180 cases and 2,514 controls for UCP3 -55C/T polymorphism. Using an additive model, the UCP2 -866G/A polymorphism showed no significant association with obesity risk in Asians (REM OR = 0.81, 95% CI: 0.65-1.01). In contrast, a statistically significant association was observed in subjects of European descent (FEM OR = 1.06, 95% CI: 1.01-1.12). But neither the UCP2 Ala55Val nor the UCP3 -55C/T polymorphism showed any significant association with obesity risk in either subjects of Asian (REM OR = 0.84, 95% CI: 0.67-1.06 for Ala55Val; REM OR = 0.94, 95% CI: 0.55-1.28 for -55C/T) or of European descent (REM OR = 1.04, 95% CI: 0.80-1.36 for Ala55Val; FEM OR = 1.08, 95% CI: 0.97-1.20 for -55C/T). CONCLUSIONS AND INTERPRETATION Our meta-analysis revealed that the UCP2 -866G/A polymorphism may be a risk factor for susceptibility to obesity in subjects of European descent, but not in individuals of Asian descent. And our results did not support the association between UCP2 Ala55Val, UCP3 -55C/T polymorphisms and obesity in the populations investigated. This conclusion warrants confirmation by further studies.
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Affiliation(s)
- Li Qian
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Kuanfeng Xu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xinyu Xu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Rong Gu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xuan Liu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shan Shan
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tao Yang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- * E-mail:
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Lupo PJ, Canfield MA, Chapa C, Lu W, Agopian AJ, Mitchell LE, Shaw GM, Waller DK, Olshan AF, Finnell RH, Zhu H. Diabetes and obesity-related genes and the risk of neural tube defects in the national birth defects prevention study. Am J Epidemiol 2012; 176:1101-9. [PMID: 23132673 DOI: 10.1093/aje/kws190] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Few studies have evaluated genetic susceptibility related to diabetes and obesity as a risk factor for neural tube defects (NTDs). The authors investigated 23 single nucleotide polymorphisms among 9 genes (ADRB3, ENPP1, FTO, LEP, PPARG, PPARGC1A, SLC2A2, TCF7L2, and UCP2) associated with type 2 diabetes or obesity. Samples were obtained from 737 NTD case-parent triads included in the National Birth Defects Prevention Study during 1999-2007. Log-linear models were used to evaluate maternal and offspring genetic effects. After application of the false discovery rate, there were 5 significant maternal genetic effects. The less common alleles at the 4 FTO single nucleotide polymorphisms showed a reduction of NTD risk (for rs1421085, relative risk (RR) = 0.73 (95% confidence interval (CI): 0.62, 0.87); for rs8050136, RR = 0.79 (95% CI: 0.67, 0.93); for rs9939609, RR = 0.79 (95% CI: 0.67, 0.94); and for rs17187449, RR = 0.80 (95% CI: 0.68, 0.95)). Additionally, maternal LEP rs2071045 (RR = 1.31, 95% CI: 1.08, 1.60) and offspring UCP2 rs660339 (RR = 1.32, 95% CI: 1.06, 1.64) were associated with NTD risk. Furthermore, the maternal genotype for TCF7L2 rs3814573 suggested an increased NTD risk among obese women. These findings indicate that maternal genetic variants associated with glucose homeostasis may modify the risk of having an NTD-affected pregnancy.
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Affiliation(s)
- Philip J Lupo
- Human Genetics Center, Division of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas, Houston, TX, USA
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Shimodaira M, Nakayama T, Sato I, Sato N, Izawa N, Mizutani Y, Furuya K, Yamamoto T. Estrogen synthesis genes CYP19A1, HSD3B1, and HSD3B2 in hypertensive disorders of pregnancy. Endocrine 2012; 42:700-7. [PMID: 22638611 DOI: 10.1007/s12020-012-9699-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 05/08/2012] [Indexed: 12/23/2022]
Abstract
Hypertension in pregnancy is a multifactorial disorder caused by a complex combination of environmental factors and several predisposing genes. Since estrogen modulates placental vascular development, estrogen synthases are considered plausible candidate genes. The aim of this haplotype-based case-control study was to estimate whether polymorphisms of the maternal estrogen synthesis genes (CYP19A1, HSD3B1 and HSD3B2) are associated with preeclampsia (PE) and gestational hypertension (GH). To examine the genetic markers in 69 PE and 62 GH patients and in 155 age-matched, primiparous, healthy control subjects, genotyping of 5 SNPs for the CYP19A1 gene (rs1870049, rs936306, rs700518, rs700519, and rs4646), 3 SNPs for the HSD3B1 gene (rs3765945, rs6203, and rs1047303), and 2 SNPs for the HSD3B2 gene (rs2854964 and rs1819698) was performed. For rs700158 of CYP19A1, the frequencies of the AG+GG genotype and the G allele were significantly higher in PE as compared to controls (P = 0.037, P = 0.033, respectively). Logistic regression analyses indicated that the AG+GG genotype of rs700158 was a PE risk factor (odds ratio = 2.15, P = 0.026). In addition, the frequency of the G-G haplotype established by rs700518-rs4646 was also significantly higher for PE (P = 0.017). These data suggest that the estrogen synthesis gene, CYP19A1 is associated with PE in the Japanese population.
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Affiliation(s)
- Masanori Shimodaira
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Ooyaguchi-kamimachi, Itabashi-ku, Tokyo, 173-8610, Japan
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Mutombo PB, Yamasaki M, Shiwaku K. UCP2 I/D modulated change in BMI during a lifestyle modification intervention study in Japanese subjects. Genet Test Mol Biomarkers 2012; 17:16-20. [PMID: 23101559 DOI: 10.1089/gtmb.2012.0229] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIM Polymorphisms in uncoupling protein (UCP) genes have been strongly associated with energy expenditure and obesity. This study aimed at investigating the effects of UCP gene polymorphisms (UCP1 -3826A/G, UCP2A/V, UCP2 I/D, and UCP3 -55C/T) on change in body mass index (BMI) during a lifestyle modification program in Japanese subjects. RESULTS Intervention induced a significant decrease in energy intake (-8.6% ± 17.0%) and a significant increase in energy expenditure (7.7% ± 7.4%). As a result, participants experienced a significant decrease in their BMI of -1.8% ± 2.7%. In a multivariate regression analysis, only UCP2 D/I among the selected UCP gene polymorphisms was associated with a change in BMI independent of the effects of gender, age, baseline BMI, changes in energy intake, and expenditure. Further regression analysis revealed that, in contrast to the DD genotype group, the DI+II genotype group showed no significant association between weight loss and change in energy expenditure suggesting this polymorphism altered the effects of this parameter on change in BMI. CONCLUSION The study found UCP2 D/I to be associated with change in BMI by altering the effect of change in energy expenditure on change in BMI.
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Affiliation(s)
- P B Mutombo
- Department of Environmental & Preventive Medicine, Faculty of Medicine, Shimane University School of Medicine, Izumo, Japan
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Lim JH, Ko MM, Lee H, Go HY, Moon TW, Cha MH, Lee MS. Differential Association of Uncoupling Protein 2 Polymorphisms with Pattern Identification among Korean Stroke Patients: A Diagnostic System in Traditional Korean Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2012; 2012:532078. [PMID: 22927880 PMCID: PMC3424818 DOI: 10.1155/2012/532078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 05/22/2012] [Accepted: 05/22/2012] [Indexed: 02/08/2023]
Abstract
Uncoupling protein 2 (UCP2), a mitochondrial protein present in many organs and cell types, is known to dissipate the proton gradient formed by the electron transport chain. Its function is correlated with predictive parameters, such as obesity, diabetes, and metabolic syndromes. We analyzed the distribution of UCP2 polymorphisms in stroke patients diagnosed with one of the following four stroke subtypes based on the TKM standard pattern identification (PI): Qi-deficiency (QD), Dampness and Phlegm (D&P), Yin-deficiency (YD), and Fire and Heat (F&D). We studied a total of 1,786 stroke patients (397/QD, 645/D&P, 223/YD, and 522/F&D, 586/normal). Genotyping for the G-1957A, G-866A and A55V UCP2 polymorphisms was performed using the TaqMan. G-866A and A55V were significantly associated with the D&P and H&F subtypes. The frequency of subjects with the A allele of G-866A was significantly lower than the frequency of subjects with the GG type. The A55V polymorphism was also shown similar effect with G-866A in the dominant model. In contrast, no SNPs were shown to be associated with the QD or YD subtypes in this study. These results showed that the G-866A and A55V UCP2 polymorphisms may be genetic factors for specific PI types among Korean stroke patients.
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Affiliation(s)
- Ji Hye Lim
- Medical Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Mi Mi Ko
- Medical Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Hoyoung Lee
- Medical Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Ho Yeon Go
- Department of Korean Oriental Medicine, Semyung University, 836 Bongbang-dong, Chungju 380-960, Republic of Korea
| | - Tae-Woong Moon
- Medical Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Min Ho Cha
- Medical Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Myeong Soo Lee
- Medical Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
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Inflammation, a link between obesity and cardiovascular disease. Mediators Inflamm 2010; 2010:535918. [PMID: 20847813 PMCID: PMC2929614 DOI: 10.1155/2010/535918] [Citation(s) in RCA: 247] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Revised: 03/10/2010] [Accepted: 06/17/2010] [Indexed: 02/08/2023] Open
Abstract
Obesity, the most common nutritional disorder in industrialized countries, is associated with an increased mortality and morbidity of cardiovascular disease (CVD). Obesity is primarily considered to be a disorder of energy balance, and it has recently been suggested that some forms of obesity are associated with chronic low-grade inflammation. The present paper focuses on the current status of our knowledge regarding chronic inflammation, a link between obesity and CVDs, including heart diseases, vascular disease and atherosclerosis. The paper discusses the methods of body fat evaluation in humans, the endocrinology and distribution of adipose tissue in the genders, the pathophysiology of obesity, the relationship among obesity, inflammation, and CVD, and the adipose tissue-derived cytokines known to affect inflammation. Due to space limitations, this paper focuses on C-reactive protein, serum amyloid A, leptin, adiponectin, resistin, visfatin, chemerin, omentin, vaspin, apelin, and retinol binding protein 4 as adipokines.
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Sugiura S, Uchida Y, Nakashima T, Ando F, Shimokata H. The association between gene polymorphisms in uncoupling proteins and hearing impairment in Japanese elderly. Acta Otolaryngol 2010; 130:487-92. [PMID: 19895332 DOI: 10.3109/00016480903283758] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSION This study illustrates that UCP2 Ala55Val polymorphisms exhibit a significant association with age-related hearing loss in the Japanese population. OBJECTIVES Mitochondrial uncoupling proteins (UCPs) have been suggested to play a protective role against neuron oxidative damage and a thermal signaling role in neuron modulation in the inner ear. In the current study, we examined the relationship between gene polymorphisms in UCP1 and UCP2 and hearing impairment (HI) in Japanese elderly. METHODS A total of 1547 subjects aged 40-79 years and living in Aichi prefecture, Japan, were entered into this study. Subjects were followed up every 2 years, and the cumulative number of subjects for 3 sequential examinations in 6 years was 4942 persons. Detailed questionnaires, pure-tone audiometry measurements, and UCP1 A-3826G and UCP2 Ala55Val polymorphisms were examined. Using generalized estimating equations, associations between HI and gene polymorphisms in UCP1 and UCP2 with age, sex, history of occupational noise exposure, and body mass index were analyzed under dominant, recessive, and additive models. RESULTS UCP1 A-3826G polymorphism did not exhibit any significant association with HI. However, UCP2 Ala55Val polymorphism did exhibit a significant association with HI under all the dominant (p = 0.0167), recessive (p = 0.0411), and additive (p = 0.0061) models.
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Affiliation(s)
- Saiko Sugiura
- Department of Otorhinolaryngology, National Center for Geriatrics and Gerontology, Obu, Aichi
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