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Inicio Endocrinología, Diabetes y Nutrición Association between the rs12654778 SNP of the β-2 adrenergic receptor and LDL c...
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Vol. 71. Issue 9.
Pages 397-404 (November 2024)
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Vol. 71. Issue 9.
Pages 397-404 (November 2024)
Original article
Association between the rs12654778 SNP of the β-2 adrenergic receptor and LDL cholesterol levels in the Chilean adult population
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Carlos González-Contrerasa,1, Miquel Martorella,b,1, Natalia Ulloab,c, Carolina Ochoa-Rosalesd,e, Felipe Díaz-Torof, Fanny Petermann-Rochag, Carlos Celis-Moralesh,i, Marcelo Villagranj,
Corresponding author
marcelo.villagran@ucsc.cl

Corresponding authors.
, Lorena Mardonesj,
Corresponding author
lmardones@ucsc.cl

Corresponding authors.
, on behalf of the ELHOC Group (Epidemiology of Lifestyle and Health Outcomes in Chile)
a Department of Nutrition and Dietetics, Faculty of Pharmacy, Universidad de Concepción, Concepción, Chile
b Centre for Healthy Living, Universidad de Concepción, Chile
c Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, Universidad de Concepción, Concepción, Chile
d Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago de Chile, Chile
e Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
f Faculty of Nursing, Universidad Andrés Bello, Santiago, Chile
g Centro de Investigación Biomédica, Facultad de Medicine, Universidad Diego Portales, Santiago, Chile
h Human Performance Lab, Education, Physical Activity and Health Research Unit, Universidad Católica del Maule, Talca, Chile
i Biomedical Sciences Research Laboratory, Faculty of Medicine, Universidad Católica de la Santísima Concepción, Concepción, Chile
j Centre of Biodiversity and Sustainable Environments (CIBAS), Universidad Católica de la Santísima Concepción, Concepción, Chile
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Tables (5)
Table 1. Population characteristics according to ADRB2 rs12654778 genotype.
Table 2. Frequency of ADRB2 rs12654778 genotypes.
Table 3. Association between ADRB2 rs12654778 genotype and blood pressure.
Table 4. Association between ADRB2 rs12654778 genotype and lipid biomarkers.
Table 5. Association between ADRB2 rs12654778 genotype and other cardiometabolic risk markers.
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Abstract
Introduction

Various polymorphisms in the beta-2 adrenergic receptor (ADRB2) gene have been associated with cardiometabolic risk factors, such as hypertension, dyslipidemia, type 2 diabetes mellitus and obesity contributing to the physiopathology of these chronic conditions. However, the association of the single nucleotide polymorphism (SNP) rs12654778 at the ADRB2 gene with metabolic changes has been poorly studied and there is no information on the Chilean adult population.

Objective

To investigate the association between the rs12654778 SNP at the ADRB2 gene with cardiometabolic risk markers in a Chilean adult population.

Methods

We conducted a cross-sectional study including 404 participants from the GENADIO study whom were genotyped for rs12654778 and categorized into GG, AG, and AA genotypes. Associations with cardiometabolic risk markers, such as blood pressure, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglycerides, blood glucose and insulin were examined using multivariate regression analysis, while statistical models were adjusted for sociodemographic and lifestyle variables.

Results

Our findings indicate a significant association between the presence of the protective genotype (AA) of the rs12654778 polymorphism and lower low-density lipoprotein cholesterol levels corresponding to 8.75mg/dL per each copy of the protective allele (maximally adjusted model). No significant associations were seen for the remaining variables.

Conclusion

The AA genotype of the rs12654778 SNP at the ADRB2 gene had a protective effect specifically against low-density lipoprotein cholesterol levels. This is the first study ever conducted in Chile on this SNP of ADRB2 and one of the few conducted worldwide to establish an association between the rs12654778 SNP at the ADRB2 gene and LDL cholesterol.

Keywords:
SNP rs12654778
ADRB2
Obesity
LDL cholesterol
Cardiometabolic disease
Abbreviations:
SNP
ADRB2
LDLc
DBP
SBP
HDLc
CT
CVDs
HOMA-IR
BMI
WC
Resumen
Introducción

Varios polimorfismos en el gen del receptor the beta-2 adrenérgico (ADRB2) han sido asociados a factores cardiometabólicos, como hipertensión, dislipidemia, diabetes tipo 2 y obesidad, contribuyendo a la fisiopatología de dichas condiciones crónicas. Sin embargo, la asociación del polimorfismo de un nucleótido (SNP) rs12654778 del gen ADRB2 con alteraciones metabólicas ha sido pobremente estudiada, sin información en población chilena.

Objetivo

Investigar la asociación del SNP rs12654778 del gen ADRB2 con marcadores de riesgo cardiometabólico en una población chilena adulta.

Métodos

Se trata de un estudio de corte transversal con 404 participantes del estudio GENADIO. Los individuos fueron genotipificados para rs12654778 y categorizados en genotipos GG, AG y AA. Se analizó su asociación con marcadores de riesgo cardiometabólico como presión arterial total, colesterol total, colesterol en lipoproteína de alta densidad, colesterol en lipoproteína de baja densidad, triglicéridos, glucosa e insulina mediante análisis de regresión multivariado, usando modelos estadísticos ajustados por variables sociodemográficas y de estilo de vida.

Resultados

Nuestros resultados indican una asociación significativa entre la presencia del genotipo protector (AA) del polimorfismo rs12654778 y los niveles de colesterol en lipoproteína de baja densidad, correspondiente a 8,75mg/dl menos por cada copia del alelo protector (modelo máximamente ajustado). No se observaron asociaciones significativas para las otras variables.

Conclusión

El genotipo AA del SNP rs12654778 del gen ADRB2 presenta efecto protector específicamente sobre los niveles de colesterol en lipoproteína de baja densidad. Este es el primer estudio en Chile que incluye este SNP del gen ADRB2 y uno de los pocos realizados a nivel mundial que establece asociación entre el SNP rs12654778 del gen ADRB2 y colesterol LDL.

Palabras clave:
SNP rs12654778
ADRB2
Obesidad
Colesterol LDL
Enfermedad cardiovascular

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