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Diabetologia ; 61(7): 1603-1613, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29721634

RESUMEN

AIMS/HYPOTHESIS: The A (minor) allele of CREBRF rs373863828 has been associated with increased BMI and reduced risk of type 2 diabetes in the Samoan populations of Samoa and American Samoa. Our aim was to test rs373863828 for associations with BMI and the odds of type 2 diabetes, gout and chronic kidney disease (CKD) in Maori and Pacific (Polynesian) people living in Aotearoa/New Zealand. METHODS: Linear and logistic regression models were used to analyse the association of the A allele of CREBRF rs373863828 with BMI, log-transformed BMI, waist circumference, type 2 diabetes, gout and CKD in 2286 adults. The primary analyses were adjusted for age, sex, the first four genome-wide principal components and (where appropriate) BMI, waist circumference and type 2 diabetes. The primary analysis was conducted in ancestrally defined groups and association effects were combined using meta-analysis. RESULTS: For the A allele of rs373863828, the effect size was 0.038 (95% CI 0.022, 0.055, p = 4.8 × 10-6) for log-transformed BMI, with OR 0.59 (95% CI 0.47, 0.73, p = 1.9 × 10-6) for type 2 diabetes. There was no evidence for an association of genotype with variance in BMI (p = 0.13), and nor was there evidence for associations with serum urate (ß = 0.012 mmol/l, pcorrected = 0.10), gout (OR 1.00, p = 0.98) or CKD (OR 0.91, p = 0.59). CONCLUSIONS/INTERPRETATION: Our results in New Zealand Polynesian adults replicate, with very similar effect sizes, the association of the A allele of rs373863828 with higher BMI but lower odds of type 2 diabetes among Samoan adults living in Samoa and American Samoa.


Asunto(s)
Índice de Masa Corporal , Diabetes Mellitus Tipo 2/prevención & control , Nativos de Hawái y Otras Islas del Pacífico/genética , Obesidad/genética , Polimorfismo de Nucleótido Simple , Proteínas Supresoras de Tumor/genética , Adulto , Anciano , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/etnología , Diabetes Mellitus Tipo 2/genética , Femenino , Frecuencia de los Genes , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Humanos , Masculino , Persona de Mediana Edad , Nueva Zelanda/epidemiología , Obesidad/diagnóstico , Obesidad/etnología , Fenotipo , Polinesia/etnología , Factores Protectores , Factores de Riesgo
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