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Lara-Gómez RE, Moreno-Cortes ML, Muñiz-Salazar R, Zenteno-Cuevas R. Association of polymorphisms at -174 in IL-6, and -308 and -238 in TNF-α, in the development of tuberculosis and type 2 diabetes mellitus in the Mexican population. Gene 2019; 702:1-7. [PMID: 30917933 DOI: 10.1016/j.gene.2019.03.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 01/04/2023]
Abstract
Polymorphisms at -176 in IL-6, and -238 and -308 in TNF-α have been described as risk factors for developing tuberculosis (TB) and type 2 diabetes mellitus (T2DM). However, it is not known how these changes influence the development of TB-T2DM comorbidity. The objective of this work was therefore to analyze the impact of these polymorphisms in the Mexican population. This is a cross-sectional study of cases and controls in which polymorphisms at -174 in IL-6, -238 and -308 in TNF-α were identified in healthy subjects, those with TB, T2DM and carriers of the comorbidity, each group consisted of 30 individuals. Descriptions of the population, frequency of genotypes and risk association were calculated, and a reduction of multifactorial dimensionality between groups (MDR) was determined. Genotype 174 G/G-of IL-6 was observed in 78% of individuals, while -308 G/G and -238 G/G of TNF-α occurred in 90% and 91% of individuals, respectively. The -174 G/G IL-6 in individuals with T2DM increased five-fold (p = .02) the risk of developing the comorbidity. The MDR analysis showed that the association of -174 G/G IL-6 and -308 G/G TNF-α in healthy individuals increased the risk of developing the comorbidity up to six-fold (p = .019), while in individuals with T2DM, this risk augmented 14-fold (p = .0002). The -174 G/G IL-6 genotype increases the risk of developing comorbidity in the T2DM population and this risk is raised when associated with -308 G/G TNF-α. These findings have implications for understanding the epidemiological dynamics of the TB-T2DM comorbidity, promoting prevention strategies and inhibiting the development of this co-morbidity.
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Affiliation(s)
- Ruth Elizabeth Lara-Gómez
- Instituto de Salud Pública, Universidad Veracruzana, Jalapa, Veracruz, Mexico; Programa de Doctorado en Ciencias de la Salud, Instituto de Ciencias de la Salud, Universidad Veracruzana, Jalapa, Veracruz, Mexico
| | - María Luisa Moreno-Cortes
- Área de Biomedicina, Instituto de Investigaciones Biológicas, Universidad Veracruzana, Jalapa, Veracruz, Mexico
| | - Raquel Muñiz-Salazar
- Laboratorio de Epidemiología y Ecología y Molecular, Escuela de Ciencias de la Salud, Universidad Autónoma de Baja California, Ensenada, Baja California, Mexico
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Wehmeier KR, Kurban W, Chandrasekharan C, Onstead-Haas L, Mooradian AD, Haas MJ. Inhibition of ABCA1 Protein Expression and Cholesterol Efflux by TNF α in MLO-Y4 Osteocytes. Calcif Tissue Int 2016; 98:586-95. [PMID: 26759003 DOI: 10.1007/s00223-015-0106-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 12/28/2015] [Indexed: 01/12/2023]
Abstract
Hip fracture and myocardial infarction cause significant morbidity and mortality. In vivo studies raising serum cholesterol levels as well as pro-inflammatory cytokines such as TNF α manifest bone loss and atherosclerotic vascular disease, suggesting that abnormalities of cholesterol transport may contribute to osteoporosis. We used the mouse osteocyte cell line (MLO-Y4) to investigate the effects of TNF α on the expression of cholesterol acceptor proteins such as apolipoprotein A-I (apo A-I) and apolipoprotein E (apo E), as well as on the cholesterol transporters ATP-binding cassette-1 (ABCA1), scavenger receptor class B type 1 (SRB1), and cluster of differentiation 36 (CD36). MLO-Y4 cells do not express apo A-I or apo E; however, they do express all three cholesterol transporters (ABCA1, SRB1, and CD36). Treatment of MLO-Y4 cells with TNF α had no effect on SRB1, CD36, and osteocalcin levels; however, TNF α reduced ABCA1 protein levels in a dose-dependent manner and cholesterol efflux to apo A-I. Interestingly, TNF α treatment increased ABCA1 promoter activity and ABCA1 mRNA levels, and increased liver X receptor α protein expression, but had no effect on retinoid X receptor α and retinoic acid receptor α levels. Pharmacological inhibition of p38 mitogen-activated protein (MAP) kinase, but not c-jun-N-terminal kinase 1 or mitogen-activated protein kinase (MEK), restored ABCA1 protein levels in TNF α-treated cells. These results suggest that pro-inflammatory cytokines regulate cholesterol metabolism in osteocytes in part by suppressing ABCA1 levels post-translationally in a p38 MAP kinase-dependent manner.
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Affiliation(s)
- Kent R Wehmeier
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - William Kurban
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Chandrikha Chandrasekharan
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Luisa Onstead-Haas
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Arshag D Mooradian
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Michael J Haas
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA.
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Salinas-Santander MA, León-Cachón RB, Cepeda-Nieto AC, Sánchez-Domínguez CN, González-Zavala MA, Gallardo-Blanco HL, Esparza-González SC, González-Madrazo MÁ. Assessment of biochemical parameters and characterization of TNFα -308G/A and PTPN22 +1858C/T gene polymorphisms in the risk of obesity in adolescents. Biomed Rep 2015; 4:107-111. [PMID: 26870345 DOI: 10.3892/br.2015.534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 10/16/2015] [Indexed: 01/05/2023] Open
Abstract
Obesity is currently considered an inflammatory condition associated with autoimmune diseases, suggesting a common origin. Among other factors, candidate genes may explain the development of this disease. Polymorphisms in the tumor necrosis factor α (TNFα) and lymphoid protein tyrosine phosphatase (PTPN22) genes lead to an increased risk to development of immune and inflammatory diseases. The aim of the present study was to analyze the biochemical parameters and the effect of the TNFα -308G/A and PTPN22 +1858C/T polymorphisms in the susceptibility of adolescents to obesity. A group of 253 adolescent subjects were recruited and classified as obese, overweight or normal weight according to their nutritional status. Anthropometric measurements, clinical and biochemical data were analyzed. DNA was extracted from peripheral blood samples by the phenol-chloroform method, and TNFα -308G/A and PTPN22 1858C/T polymorphisms were determined by polymerase chain reaction-restriction fragment length polymorphism assays. Clinical, genetic and biochemical parameters were analyzed to determine the existence of a possible association with the development of obesity. Statistically significant differences in body mass index, insulin, triglyceride levels and homeostatic model assessment for insulin resistance (HOMA-IR) index were observed among the three groups analyzed (P≤0.05). The studied polymorphisms did not confer a risk for developing obesity in the analyzed population (P>0.05); however, significantly low levels of insulin and decreased rates of HOMA-IR were observed in the 1858 CT genotype carriers of the PTPN22 gene. In conclusion, no association between the TNFα -308G/A and PTPN22 +1858C/T polymorphisms and the risk to development of obesity in the adolescent population analyzed was observed. However, the 1858 CT genotype of the PTPN22 gene was associated with variations of certain biochemical parameters analyzed.
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Affiliation(s)
| | - Rafael Baltazar León-Cachón
- Department of Basic Sciences, Division of Health Sciences, University of Monterrey, San Pedro Garza García, Nuevo León CP 66238, Mexico
| | - Ana Cecilia Cepeda-Nieto
- Research Department, Saltillo Unit Faculty of Medicine, Autonomous University of Coahuila, Saltillo, Coahuila CP 2500, Mexico
| | - Celia Nohemí Sánchez-Domínguez
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, Nuevo León CP 64460, Mexico
| | | | - Hugo Leonid Gallardo-Blanco
- Department of Genetics, School of Medicine, Autonomous University of Nuevo León, Monterrey, Nuevo León CP 64460, Mexico
| | - Sandra Cecilia Esparza-González
- Research Department, Saltillo Unit Faculty of Medicine, Autonomous University of Coahuila, Saltillo, Coahuila CP 2500, Mexico
| | - Miguel Ángel González-Madrazo
- Research Department, Saltillo Unit Faculty of Medicine, Autonomous University of Coahuila, Saltillo, Coahuila CP 2500, Mexico
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Sanchez-Dominguez CN, Reyes-Lopez MA, Bustamante A, Cerda-Flores RM, Villalobos-Torres MDC, Gallardo-Blanco HL, Rojas-Martinez A, Martinez-Rodriguez HG, Barrera-Saldaña HA, Ortiz-Lopez R. The tumor necrosis factor α (-308 A/G) polymorphism is associated with cystic fibrosis in Mexican patients. PLoS One 2014; 9:e90945. [PMID: 24603877 PMCID: PMC3946307 DOI: 10.1371/journal.pone.0090945] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 02/05/2014] [Indexed: 11/18/2022] Open
Abstract
UNLABELLED Environmental and genetic factors may modify or contribute to the phenotypic differences observed in multigenic and monogenic diseases, such as cystic fibrosis (CF). An analysis of modifier genes can be helpful for estimating patient prognosis and directing preventive care. The aim of this study is to determine the association between seven genetic variants of four modifier genes and CF by comparing their corresponding allelic and genotypic frequencies in CF patients (n = 81) and control subjects (n = 104). Genetic variants of MBL2 exon 1 (A, B, C and D), the IL-8 promoter (-251 A/T), the TNFα promoter (TNF1/TNF2), and SERPINA1 (PI*Z and PI*S) were tested in CF patients and control subjects from northeastern Mexico by PCR-RFLP. RESULTS The TNF2 allele (P = 0.012, OR 3.43, 95% CI 1.25-9.38) was significantly associated with CF under the dominant and additive models but was not associated with CF under the recessive model. This association remained statistically significant after adjusting for multiple tests using the Bonferroni correction (P = 0.0482). The other tested variants and genotypes did not show any association with the disease. CONCLUSION An analysis of seven genetic variants of four modifier genes showed that one variant, the TNF2 allele, appears to be significantly associated with CF in Mexican patients.
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Affiliation(s)
- Celia N. Sanchez-Dominguez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Miguel A. Reyes-Lopez
- Laboratorio de Medicina de Conservacion, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Reynosa, Tamaulipas, Mexico
| | - Adriana Bustamante
- Clinica de Fibrosis Quistica, Centro de Prevencion y Rehabilitacion de Enfermedades Pulmonares Cronicas (CEPREP), Facultad de Medicina y Hospital Universitario “Dr. Jose Eleuterio Gonzalez”, Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | | | - Maria del C. Villalobos-Torres
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Hugo L. Gallardo-Blanco
- Departamento de Genetica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Augusto Rojas-Martinez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
- Centro de Investigacion y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Herminia G. Martinez-Rodriguez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Hugo A. Barrera-Saldaña
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Rocio Ortiz-Lopez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
- Centro de Investigacion y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
- * E-mail:
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Castro-Martínez XH, Leal-Cortés C, Flores-Martínez SE, García-Zapién AG, Sánchez-Corona J, Portilla-de Buen E, Gómez-Espinel I, Zamora-Ginez I, Pérez-Fuentes R, Islas-Andrade S, Revilla-Monsalve C, Guerrero-Romero F, Rodríguez-Morán M, Mendoza-Carrera F. Tumor necrosis factor haplotype diversity in Mestizo and native populations of Mexico. ACTA ACUST UNITED AC 2014; 83:247-59. [PMID: 24517517 DOI: 10.1111/tan.12300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 12/06/2013] [Accepted: 01/06/2014] [Indexed: 11/30/2022]
Abstract
The so-called tumor necrosis factor (TNF) block includes the TNFA, lymphotoxin alpha and beta (LTA and LTB) genes with single-nucleotide polymorphisms (SNP) and microsatellites with an allele frequency that exhibits interpopulation variability. To date, no reports have included both SNPs and microsatellites at the TNF block to study Mestizo or Amerindian populations from Mexico. In this study, samples of five Mexican Mestizo populations (Durango, Guadalajara, Monterrey, Puebla, and Tierra Blanca) and four native-Mexican populations (North Lacandonians, South Lacandonians, Tepehuanos, and Yaquis) were genotyped for two SNPs (LTA+252A>G and TNFA-308G>A) and four microsatellites (TNFa, d, e, and f), to analyze the genetic substructure of the Mexican population. Allele and haplotype frequencies, linkage disequilibrium (LD), and interpopulation genetic relationships were calculated. There was significant LD along almost all of the TNF block but the lowest D' values were observed for the TNFf-TNFd pair. Mestizos showed higher allele and haplotype diversity than did natives. The genetic differentiation level was reduced among Mestizos; however, a slightly, but significant genetic substructure was observed between northern and southern Mexican Mestizos. Among the Amerindian populations, the genetic differentiation level was significantly elevated, particularly in both North and South Lacandonians. Furthermore, among Southern Lacandonians, inhabitants of Lacanja town were the most differentiated from all the Mexicans analyzed. The data presented here will serve as a reference for further population and epidemiological studies including these TNF polymorphisms in the Mexican population.
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Affiliation(s)
- X H Castro-Martínez
- Molecular Medicine Division, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara, Mexico; Doctorate Program in Human Genetics, Universidad de Guadalajara, Guadalajara, Mexico
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Bhanushali AA, Das BR. Promoter variants in interleukin-6 and tumor necrosis factor alpha and risk of coronary artery disease in a population from Western India. INDIAN JOURNAL OF HUMAN GENETICS 2014; 19:430-6. [PMID: 24497708 PMCID: PMC3897138 DOI: 10.4103/0971-6866.124371] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION: A central component of the atherosclerotic process is inflammation. Single nucleotide polymorphisms (SNPs) present in the promoter region of various cytokines can lead to altered levels of the transcript and a state of low-grade inflammation exacerbating the risk of coronary artery disease (CAD). The present work tries to understand the role of permissive promoter variants in the interleukin-6 gene (IL-6-174G/C) and the tumor necrosis factor alpha (TNFα-308G/A) in the causation of CAD and also dyslipidemia. MATERIALS AND METHODS: Genotyping was conducted on 100 cases of CAD and 150 controls by the allele termination assay SNaPshot. Biochemical parameters were determined by routine enzymatic endpoint methods. The results were analyzed by appropriate statistical methods. RESULTS: No differences in the minor allele frequency IL-6-174G/C SNP were seen between cases and controls (0.13 vs. 0.12). The differences in the allele frequency of TNFα-308A between cases (6%) and controls (2%) have led to an odds ratio, 3.370; 95% confidence interval, 1.039-11.543; P=0.033 in the univariate analysis. In the final logistic regression analysis, however none of the variants were associated with an increased risk of CAD. CONCLUSIONS: In summary, no association of the permissive promoter variants in the IL-6 gene and the TNFα gene were seen with an increased CAD risk. These and other studies highlight the importance of doing population specific studies.
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Affiliation(s)
- Aparna A Bhanushali
- Research and Development, Super Religare Laboratories Ltd., Goregaon West, Mumbai, Maharashtra, India
| | - B R Das
- Research and Development, Super Religare Laboratories Ltd., Goregaon West, Mumbai, Maharashtra, India
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Borinskaya SA, Gureev AS, Orlova AA, Sanina ED, Kim AA, Gasemianrodsari F, Shirmanov VI, Balanovsky OP, Rebrikov DV, Koshechkin AV, Yankovsky NK. Allele frequency distributions of -174G/C polymorphism in regulatory region of interleukin 6 gene (IL6) in Russian and worldwide populations. RUSS J GENET+ 2013. [DOI: 10.1134/s1022795413010031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Ackert-Bicknell CL. HDL cholesterol and bone mineral density: is there a genetic link? Bone 2012; 50:525-33. [PMID: 21810493 PMCID: PMC3236254 DOI: 10.1016/j.bone.2011.07.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 06/27/2011] [Accepted: 07/04/2011] [Indexed: 12/16/2022]
Abstract
Overwhelming evidence has linked cardiovascular disease and osteoporosis, but the shared root cause of these two diseases of the elderly remains unknown. Low levels of high density lipoprotein cholesterol (HDL) and bone mineral density (BMD) are risk factors for cardiovascular disease and osteoporosis respectively. A number of correlation studies have attempted to determine if there is a relationship between serum HDL and BMD but these studies are confounded by a number of variables including age, diet, genetic background, gender and hormonal status. Collectively, these data suggest that there is a relationship between these two phenotypes, but that the nature of this relationship is context specific. Studies in mice plainly demonstrate that genetic loci for BMD and HDL co-map and transgenic mouse models have been used to show that a single gene can affect both serum HDL and BMD. Work completed to date has demonstrated that HDL can interact directly with both osteoblasts and osteoclasts, but no direct evidence links bone back to the regulation of HDL levels. Understanding the genetic relationship between BMD and HDL has huge implications for understanding the clinical relationship between CVD and osteoporosis and for the development of safe treatment options for both diseases.
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Gray SB, Langefeld CD, Ziegler JT, Hawkins GA, Wagner JD, Howard TD. Single-nucleotide polymorphisms in the TNF gene are associated with obesity-related phenotypes in vervet monkeys. Obesity (Silver Spring) 2011; 19:1427-32. [PMID: 21331060 DOI: 10.1038/oby.2011.19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Tumor necrosis factor (TNF) promoter single-nucleotide polymorphisms (SNPs) have been extensively characterized in humans, with numerous reports of associations with obesity-related phenotypes as well an array of infectious, immune-mediated, and inflammatory disease phenotypes. Controlling for the multitude of environmental risk factors in human studies has been a major confounder of efforts to elucidate the role and relative contribution of TNF promoter SNPs. As part of an ongoing initiative to further genetically and phenotypically characterize the St Kitts-origin vervet monkey (Chlorocebus aethiops ssp.) as an animal model of human obesity, we have conducted association analyses between TNF SNPs and previously defined obesity-related phenotypes in 265 pedigreed vervets. We report eight SNPs (-809G, -756A, -352C, -322A, +1285T, +2133T, +2362A, +2405), all contained within the same haplotype block and comprising a single haplotype, to be significantly associated with BMI, waist circumference, total plasma cholesterol (P < 0.05), and high-density lipoprotein-cholesterol (HDL-C) (P < 0.01). This study provides additional validation of the St Kitts-origin vervet model of obesity by demonstrating genetic associations analogous to that shown in humans.
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Affiliation(s)
- Stanton B Gray
- Department of Pathology, Section on Comparative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
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Yamaguchi M, Nakayama T, Fu Z, Sato N, Soma M, Morita A, Hinohara S, Doba N, Mizutani T. The haplotype of the CACNA1B gene associated with cerebral infarction in a Japanese population. Hereditas 2011; 147:313-9. [PMID: 21166801 DOI: 10.1111/j.1601-5223.2009.02115.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Cerebral infarction (CI) is thought to be a multifactorial disease that is affected by several environmental factors and genetic variants. N-type voltage-gated calcium channels (VGCCs), which are expressed primarily in the neurons, have various roles in neuronal functions and are especially involved with neurotransmitter release at the sympathetic nerve terminals. We considered the α1B subunit of the N-type voltage-gated calcium channel (CACNA1B) to be representative of the general characteristics of this channel type. The aim of the present study was to assess the association of the human CACNA1B gene with the occurrence of CI via a haplotype-based case-control study that used single nucleotide polymorphisms (SNPs) from the Japanese population. A total of 165 CI patients and 314 controls were enrolled in the case-controlled studies that examined three SNPs of the human CACNA1B gene (rs7042521, rs11137351, rs10780199). There were significant differences between the CI and control groups for the overall distribution of the genotypes and the presence of the recessive rs10780199. Multiple logistic regression analyses revealed that even after adjusting for confounding factors (odds ratio: 1.716), the frequencies of the A/G and G/G genotypes of rs10780199 in the CI group were significantly higher than those observed in the control group (p = 0.021). Furthermore, the C-C-G and G-G-G haplotypes of rs7042521-rs11137351-rs10780199 were significantly more frequent in the CI group than in the control group (p = 0.024 and p < 0.000). In conclusion, significant differences were noted between the CI and control patients for the specific SNPs and haplotypes in the CACNA1B gene. The results indicate that these polymorphisms and haplotypes might be genetic markers for CI.
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Affiliation(s)
- Mai Yamaguchi
- Division of Neurology, Dept of Medicine, Nihon University School of Medicine, Tokyo, Japan
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11
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Mendoza-Carrera F, Ramírez-López G, Ayala-Martínez NA, García-Zapién AG, Flores-Martínez SE, Sánchez-Corona J. Influence of CRP, IL6, and TNFA Gene Polymorphisms on Circulating Levels of C-Reactive Protein in Mexican Adolescents. Arch Med Res 2010; 41:472-7. [DOI: 10.1016/j.arcmed.2010.08.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Accepted: 08/25/2010] [Indexed: 12/12/2022]
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Chang MH, Yesupriya A, Ned RM, Mueller PW, Dowling NF. Genetic variants associated with fasting blood lipids in the U.S. population: Third National Health and Nutrition Examination Survey. BMC MEDICAL GENETICS 2010; 11:62. [PMID: 20406466 PMCID: PMC2876148 DOI: 10.1186/1471-2350-11-62] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Accepted: 04/20/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND The identification of genetic variants related to blood lipid levels within a large, population-based and nationally representative study might lead to a better understanding of the genetic contribution to serum lipid levels in the major race/ethnic groups in the U.S. population. METHODS Using data from the second phase (1991-1994) of the Third National Health and Nutrition Examination Survey (NHANES III), we examined associations between 22 polymorphisms in 13 candidate genes and four serum lipids: high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), total cholesterol (TC), and triglycerides (TG). Univariate and multivariable linear regression and within-gene haplotype trend regression were used to test for genetic associations assuming an additive mode of inheritance for each of the three major race/ethnic groups in the United States (non-Hispanic white, non-Hispanic black, and Mexican American). RESULTS Variants within APOE (rs7412, rs429358), PON1 (rs854560), ITGB3 (rs5918), and NOS3 (rs2070744) were found to be associated with one or more blood lipids in at least one race/ethnic group in crude and adjusted analyses. In non-Hispanic whites, no individual polymorphisms were associated with any lipid trait. However, the PON1 A-G haplotype was significantly associated with LDL-C and TC. In non-Hispanic blacks, APOE variant rs7412 and haplotype T-T were strongly associated with LDL-C and TC; whereas, rs5918 of ITGB3 was significantly associated with TG. Several variants and haplotypes of three genes were significantly related to lipids in Mexican Americans: PON1 in relation to HDL-C; APOE and NOS3 in relation to LDL-C; and APOE in relation to TC. CONCLUSIONS We report the significant associations of blood lipids with variants and haplotypes in APOE, ITGB3, NOS3, and PON1 in the three main race/ethnic groups in the U.S. population using a large, nationally representative and population-based sample survey. Results from our study contribute to a growing body of literature identifying key determinants of plasma lipoprotein concentrations and could provide insight into the biological mechanisms underlying serum lipid and cholesterol concentrations.
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Affiliation(s)
- Man-huei Chang
- National Office of Public Health Genomics, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Naganuma T, Nakayama T, Sato N, Fu Z, Soma M, Aoi N, Hinohara S, Doba N, Usami R. Association of extracellular superoxide dismutase gene with cerebral infarction in women: a haplotype-based case-control study. Hereditas 2008; 145:283-92. [DOI: 10.1111/j.1601-5223.2008.02086.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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14
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Bošnjak Z, Cavar S, Klapec T, Milić M, Klapec-Basar M, Toman M. Selected markers of cardiovascular disease in a population exposed to arsenic from drinking water. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2008; 26:181-186. [PMID: 21783908 DOI: 10.1016/j.etap.2008.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Revised: 03/07/2008] [Accepted: 03/11/2008] [Indexed: 05/31/2023]
Abstract
This study examined prevalence and serum levels of selected markers of cardiovascular disease in 34 subjects from a Croatian rural population exposed to high levels of arsenic (As) from drinking water (611.89±10.06μg/l). The prevalences of overweight and obese subjects in the population were 32% and 35%. Half the subjects had hypertension, 29% had increased fasting serum glucose level and two were diabetic. Median total cholesterol (5.82mmol/l) and triglycerides (2.15mmol/l) were above the desirable margins. The median C-reactive protein level (1.20mg/l) was slightly higher than previously reported for healthy subjects. Serum Hsp70 level was significantly higher in nonsmokers. Total urinary As levels were positively correlated with age-adjusted serum levels of cobalamin. Near significance were also serum total bilirubin, antibodies to Hsp60 and folate. Tentative investigation of risk factors among subjects classified by tumor necrosis factor-α -308G/A and interleukin-6-174G/C gene polymorphisms was also performed. Collectively, the results are in agreement with the hypothesis of As-induced and/or compounded cardiovascular disease.
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Affiliation(s)
- Zinka Bošnjak
- Institute of Public Health for Osijek-Baranya County, Osijek, Croatia
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Jimenez-Sanchez G, Silva-Zolezzi I, Hidalgo A, March S. Genomic medicine in Mexico: Initial steps and the road ahead. Genome Res 2008; 18:1191-8. [DOI: 10.1101/gr.065359.107] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Hernández-Nazará ZH, Ruiz-Madrigal B, Martínez-López E, Roman S, Panduro A. Association of the epsilon 2 allele of APOE gene to hypertriglyceridemia and to early-onset alcoholic cirrhosis. Alcohol Clin Exp Res 2008; 32:559-66. [PMID: 18241317 DOI: 10.1111/j.1530-0277.2007.00607.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND The diverse incidence of alcoholic cirrhosis around the world and the fact that not all alcoholic drinkers develop liver disease indicates that genetic and environmental factors play an important role in the development of liver cirrhosis. Lipids participate in early stages of alcoholic cirrhosis. Therefore variations in the plasma lipid profile due to primary (genetic) or secondary (environmental) dyslipidemia could affect the development of liver disease. The aim of this study was to analyze the lipid profile and apolipoprotein E (APOE) polymorphism in patients with alcoholic liver cirrhosis (AC) and determine the risk associated with genotype polymorphism with the onset of alcoholic cirrhosis. METHODS In a case and control study, 86 patients with AC divided into hyperlipidemic (H) and non-hyperlipidemic (non-H) groups, and 133 healthy individuals (C) matched by age and sex were studied. Lipid profile and liver function tests were measured by enzymatic methods. The APOE genotypes were identified by PCR-RFLP's. RESULTS A statistically significant increase of the APOE*2 allele and genotypes 2/2, 2/3, and 2/4 was present in AC patients compared to C group. A hyperlipidemic state characterized by increased levels of triglycerides and apolipoprotein B (APOB) and a decrease of high density lipoprotein-cholesterol (HDL-c) was detected in young-aged patients (31.2 +/- 6.2 years old vs. 46.3 +/- 12.5 years old). In this group, hypertriglyceridemia was closely associated to APOE*2 allele and to an early onset of liver cirrhosis. By contrast, APOE*4 allele was associated with a longer duration of alcohol intake (>20 years) in the non-H group. CONCLUSIONS This study shows the association of hypertriglyceridemia and APOE allele with the early onset of alcoholic liver cirrhosis, and the interaction between environmental factors, such as duration of alcohol abuse and amount of alcohol intake, and genetic factors (APOE*2 allele) on the hypertriglyceridemic process.
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Affiliation(s)
- Zamira H Hernández-Nazará
- Department of Molecular Biology in Medicine, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
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