학술논문
Genotype Prevalence of Lactose Deficiency, Vitamin D Deficiency, and the Vitamin D Receptor in a Chilean Inflammatory Bowel Disease Cohort: Insights from an Observational Study
Document Type
article
Author
Tamara Pérez-Jeldres; M. Leonor Bustamante; Roberto Segovia-Melero; Nataly Aguilar; Fabien Magne; Gabriel Ascui; Denisse Uribe; Lorena Azócar; Cristián Hernández-Rocha; Ricardo Estela; Verónica Silva; Andrés De La Vega; Elizabeth Arriagada; Mauricio Gonzalez; Gian-Franco Onetto; Sergio Escobar; Pablo Baez; Alejandra Zazueta; Carolina Pavez-Ovalle; Juan Francisco Miquel; Manuel Álvarez-Lobos
Source
International Journal of Molecular Sciences, Vol 24, Iss 19, p 14866 (2023)
Subject
Language
English
ISSN
1422-0067
1661-6596
1661-6596
Abstract
Lactose intolerance (LI) and vitamin D deficiency (VDD) have been linked to inflammatory bowel disease (IBD). We conducted an observational study in 192 Chilean IBD patients to investigate the prevalence of a specific gene variant (LCT-13910 CC genotype) associated with LI and the prevalence of VDD/Vitamin D Receptor (VDR) gene variants. Blood samples were analyzed using Illumina’s Infinium Global Screening Array. The LCT-13910 CC genotype was found in 61% of IBD patients, similar to Chilean Hispanic controls and lower than Chilean Amerindian controls. The frequency of the LCT-13910-C allele in Chilean IBD patients (0.79) was comparable to the general population and higher than Europeans (0.49). Regarding VDR and VDD variants, in our study, the rs12785878-GG variant was associated with an increased risk of IBD (OR = 2.64, CI = 1.61–4.32; p-value = 0.001). Sixty-one percent of the Chilean IBD cohort have a genetic predisposition to lactose malabsorption, and a significant proportion exhibit genetic variants associated with VDD/VDR. Screening for LI and VDD is crucial in this Latin American IBD population.