4
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Prevalencia del haplotipo de riesgo GA de los polimorfismos rs1554483 y rs4864548 del gen CLOCK asociados a la obesidad y el sobrepeso en 26 poblaciones Translated title: Prevalence of the GA risk haplotype of the rs1554483 and rs4864548 polymorphisms of the CLOCK gene associated with obesity and overweight in 26 populations

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Resumen Introducción: el haplotipo GA de los polimorfismos rs1554483 y rs4864548 se ha asociado con componentes del síndrome metabólico como la hipertensión arterial y los niveles de triglicéridos. Sus portadores presentan un riesgo de obesidad 1,5 veces mayor que el resto de la población. Metodología: se obtuvieron los SNP rs1554483 y rs4864548 de 2504 individuos desde la base de datos “1000genomes phase 3”. Los datos se agruparon en cinco macropoblaciones (África, Asia Oriental, Asia Meridional, Europa y Latinoamérica) cubriendo un total de 26 poblaciones. Se analizaron las diferencias en la frecuencia del haplotipo entre las macropoblaciones y las poblaciones, para lo cual se utilizó el estadístico F de Fisher. Resultados: la macropoblación de África presentó la menor frecuencia (17,9 %) y la del Este de Asia la mayor (57,4 %). Dentro de las poblaciones existe una relativa homogeneidad en las frecuencias, excepto en el caso de las que componen la macropoblación de Latinoamérica, donde la población peruana de Lima y la puertorriqueña presentan frecuencias mucho mayores que el resto. Conclusiones: el haplotipo GA presenta heterogeneidad entre las macropoblaciones, lo que sugiere procesos microevolutivos altamente diferenciados entre los continentes. Se propone estudiar la asociación del haplotipo GA con otros polimorfismos, como rs3749474, rs11932595 y rs6859524, que también se han asociado con el riesgo de obesidad y factores asociados al síndrome metabólico.

          Translated abstract

          Abstract Introduction: the GA haplotype of polymorphisms rs1554483 and rs4864548 has been associated with components of the metabolic syndrome such as high blood pressure and triglyceride levels; its carriers have a risk of obesity, 1.5 times higher than the rest of the population. Methodology: SNP rs1554483 and rs4864548 were obtained from 2504 individuals from the “1000genomes phase 3” database. Data were grouped into five macro populations (Africa, East Asia, South Asia, Europe and Latin America) covering a total of 26 populations. Differences in haplotype frequency between macro populations and populations were analyzed, for which Fisher's F statistic was used. Results: the macro population of Africa presented the lowest frequency (17.9 %) and that of East Asia the highest (57.4 %). Within the populations there is a relative homogeneity in the frequencies, except in the case of those that make up the macro population of Latin America where the Peruvian population of Lima and the Puerto Rican population present much higher frequencies than the rest. Conclusions: the GA haplotype presents heterogeneity between macro populations, which suggests highly differentiated micro evolutionary processes between continents. We propose to study the association of the GA haplotype with other polymorphisms such as rs3749474, rs11932595 and rs6859524 that have also been associated with risk of obesity and factors associated with metabolic syndrome.

          Related collections

          Most cited references17

          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          The variant call format and VCFtools

          Summary: The variant call format (VCF) is a generic format for storing DNA polymorphism data such as SNPs, insertions, deletions and structural variants, together with rich annotations. VCF is usually stored in a compressed manner and can be indexed for fast data retrieval of variants from a range of positions on the reference genome. The format was developed for the 1000 Genomes Project, and has also been adopted by other projects such as UK10K, dbSNP and the NHLBI Exome Project. VCFtools is a software suite that implements various utilities for processing VCF files, including validation, merging, comparing and also provides a general Perl API. Availability: http://vcftools.sourceforge.net Contact: rd@sanger.ac.uk
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Obesity and the risk of cardiovascular and all-cause mortality in chronic kidney disease: a systematic review and meta-analysis.

            Obesity is a risk factor for cardiovascular disease and death in people without chronic kidney disease (CKD), but the effect of obesity in people with CKD is uncertain.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Genetic variants of Clock transcription factor are associated with individual susceptibility to obesity.

              Altering circadian rhythmicity results in pathophysiologic changes resembling metabolic syndrome and fat accumulation. We investigated the role of gene variants and derived haplotypes of the CLOCK transcription factor in obesity and related quantitative metabolic traits. Lean (n = 715) and overweight or obese (n = 391) unrelated subjects aged 34.4 +/- 8.6 y were included in a population-based cross-sectional study. Six tag single-nucleotide polymorphisms (SNPs) with a minor (>10%) allele frequency (rs1554483 C/G; rs11932595 A/G; rs4580704 C/G; rs6843722 A/C; rs6850524 C/G, and rs4864548 A/G) encompassing 117 kb of chromosome 4 and representing 115 polymorphic sites (r(2) > 0.8) were genotyped. Association was tested by PLINK and WHAP software, and multiple testing was controlled by permutation test. The genotype frequencies of 4 tag SNPs--rs1554483, rs6843722, rs6850524, and rs4864548--had significant (empiric P < 0.010, 0.021, 0.021, and 0.010, respectively) associations with overweight or obesity. Haplotype analysis showed that only paired haplotypes, including rs1554483 and rs4864548, had a significant effect on overweight or obesity. Combinations of these SNPs (haplotype block CG and GA) are responsible for the gene effect (GA frequencies: 47% in cases, 41% in controls; empiric P < 0.011). These findings were concurrently observed in a sample of persons from a hospital-based study, and the combined Mantel-Haenszel fixed effect was an odds ratio of 1.82 (95% CI: 1.31, 2.54; P < 0.001) for the paired haplotype, which included CG and GA for rs1554483 and rs4864548. The present study suggests a putative role of the CLOCK polymorphism and related haplotypes in susceptibility to obesity. The haplotype of rs1554483G and rs4864548A was associated with a 1.8-fold risk of overweight or obesity.
                Bookmark

                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                June 2023
                : 40
                : 3
                : 529-533
                Affiliations
                [4] Santiago orgnameUniversidad Bernardo O'Higgins orgdiv1Facultad de Ciencias de la Salud orgdiv2Programa de Mágister en Ciencias Químico-Biológicas Chile
                [6] Concepción Bío-Bío orgnameUniversidad Católica de la Santísima Concepción orgdiv1Facultad de Ingeniería orgdiv2Departamento de Ingeniería Civil Chile
                [5] Santiago Santiago de Chile orgnameUniversidad Mayor orgdiv1Facultad de Ciencias orgdiv2Escuela de Tecnología Médica Chile
                [3] Santiago Santiago de Chile orgnameUniversidad de Las Américas orgdiv1Facultad de Salud y Ciencias Sociales Chile
                [1] Santiago Araucanía orgnameUniversidad Autónoma de Chile orgdiv1Facultad de Ciencias de la Salud Chile
                [2] Santiago Bío-Bío orgnameUniversidad San Sebastián orgdiv1Facultad de Ingeniería y Tecnología orgdiv2Departamento de Ingeniería Industrial Chile
                Article
                S0212-16112023000400010 S0212-1611(23)04000300010
                10.20960/nh.04256
                03f68ea6-b705-4411-9933-e68e94da9c1d

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 26 May 2022
                : 09 November 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 18, Pages: 5
                Product

                SciELO Spain

                Categories
                Trabajos Originales

                Metabolic syndrome,Obesity,CLOCK gene,rs4864548,rs1554483,Síndrome metabólico,Obesidad,Gen CLOCK

                Comments

                Comment on this article