Browsing by Author "Segovia-Melero, Roberto"

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    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
    (MDPI, 2023) Pérez Jeldres, Tamara De Lourdes; Bustamante, M. Leonor; Segovia-Melero, Roberto; Aguilar, Nataly; Magne, Fabien; Ascui, Gabriel; Uribe, Denisse; Azocar, Lorena; Hernández Rocha, Cristián Antonio; Estela, Ricardo; Silva, Veronica; De La Vega, Andres; Arriagada, Elizabeth; Gonzalez, Mauricio; Onetto, Gian-Franco; Escobar, Sergio; Baez, Pablo; Zazueta, Alejandra; Pávez Ovalle Carolina Denisse; Miquel Poblete, Juan Francisco; Álvarez Lobos Manuel Marcelo
    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.