RT Journal Article T1 Morbid Obesity in Women Is Associated with an Altered Intestinal Expression of Genes Related to Cancer Risk and Immune, Defensive, and Antimicrobial Response. A1 Ho-Plágaro, Ailec A1 Rodríguez-Díaz, Cristina A1 Santiago-Fernández, Concepción A1 López-Gómez, Carlos A1 García-Serrano, Sara A1 Martín-Reyes, Flores A1 Rodríguez-Pacheco, Francisca A1 Rodríguez-Cañete, Alberto A1 Alcaín-Martínez, Guillermo A1 Vázquez-Pedreño, Luis A1 Valdés, Sergio A1 Garrido-Sánchez, Lourdes A1 García-Fuentes, Eduardo K1 cancer K1 duodenum K1 immune system K1 inflammation K1 insulin resistance K1 microarray K1 morbid obesity AB Little is known about the relation between morbid obesity and duodenal transcriptomic changes. We aimed to identify intestinal genes that may be associated with the development of obesity regardless of the degree of insulin resistance (IR) of patients. Duodenal samples were assessed by microarray in three groups of women: non-obese women and women with morbid obesity with low and high IR. We identified differentially expressed genes (DEGs) associated with morbid obesity, regardless of IR degree, related to digestion and lipid metabolism, defense response and inflammatory processes, maintenance of the gastrointestinal epithelium, wound healing and homeostasis, and the development of gastrointestinal cancer. However, other DEGs depended on the IR degree. We mainly found an upregulation of genes involved in the response to external organisms, hypoxia, and wound healing functions in women with morbid obesity and low IR. Regardless of the degree of IR, morbid obesity is associated with an altered expression of genes related to intestinal defenses, antimicrobial and immune responses, and gastrointestinal cancer. Our data also suggest a deficient duodenal immune and antimicrobial response in women with high IR. SN 2227-9059 YR 2022 FD 2022-04-29 LK http://hdl.handle.net/10668/20828 UL http://hdl.handle.net/10668/20828 LA en DS RISalud RD Apr 11, 2025