RT Journal Article T1 Silicon alleviates nonalcoholic steatohepatitis by reducing apoptosis in aged wistar rats fed a high-saturated fat, high-cholesterol diet A1 Garcimartín Álvarez, Alba A1 López-Oliva Muñoz, María Elvira A1 Santos López, Jorge Arturo A1 García Fernández, Rosa Ana A1 Macho González, Adrián A1 Bastida Codina, Sara A1 Benedí González, Juana María A1 Sánchez Muniz, Francisco José AB Silicon included in a restructured meat (RM) matrix (Si-RM) as a functional ingredient has been demonstrated to be a potential bioactive antidiabetic compound. However, the jejunal and hepatic molecular mechanisms by which Si-RM exerts its cholesterol-lowering effects remain unclear. Male Wistar rats fed an RM included in a high-saturated-fat high-cholesterol diet (HSFHCD) combined with a low dose of streptozotocin plus nicotinamide injection were used as late-stage type 2 diabetes mellitus (T2DM) model. Si-RM was included into the HSFHCD as a functional food. An early-stage TD2M group fed a high-saturated-fat diet (HSFD) was taken as reference. Si-RM inhibited the hepatic and intestinal microsomal triglyceride transfer protein (MTP) reducing the apoB-containing lipoprotein assembly and cholesterol absorption. Upregulation of liver X receptor (LXRα/β) by Si-RM turned in a higher low-density lipoprotein receptor (LDLr) and ATP-binding cassette transporters (ABCG5/8, ABCA1) promoting jejunal cholesterol efflux and transintestinal cholesterol excretion (TICE), and facilitating partially reverse cholesterol transport (RCT). Si-RM decreased the jejunal absorptive area and improved mucosal barrier integrity. Consequently, plasma triglycerides and cholesterol levels decreased, as well as the formation of atherogenic lipoprotein particles. Si-RM mitigated the dyslipidemia associated with late-stage T2DM by Improving cholesterol homeostasis. Silicon could be used as an effective nutritional approach in diabetic dyslipidemia management. PB ASN SN 2304-8158 YR 2017 FD 2017 LK https://hdl.handle.net/20.500.14352/110030 UL https://hdl.handle.net/20.500.14352/110030 LA eng NO Hernández-Martín, M., Garcimartín, A., Bocanegra, A., Redondo-Castillejo, R., Quevedo-Torremocha, C., Macho-González, A., García Fernández, R. A., Bastida, S., Benedí, J., Sánchez-Muniz, F. J., & López-Oliva, M. E. (2024). Silicon as a Functional Meat Ingredient Improves Jejunal and Hepatic Cholesterol Homeostasis in a Late-Stage Type 2 Diabetes Mellitus Rat Model. Foods, 13(12). https://doi.org/10.3390/FOODS13121794 NO Acknowledgments: We thank the Centro de Experimentacion Animal of the Alcal ´ a´ University, Madrid, Spain, for feeding and caring for the rats. The authors responsibilities were as follows—AG, MEL-O, and FJS-M: designed the research; AG, MEL-O, JAS-L, AM-G, and RAG-F: conducted the research; AG, MEL-O, SB, and JB: analyzed the data; AG, MEL-O, SB, JB, and FJS-M: wrote the paper; FJS-M: had primary responsibility for the final content; and all authors: read and approved the final manuscriptExperimental design The study was approved by the Spanish Science and Technology Advisory Committee (project AGL2011-29644-C02-02) and by an ethics committee at the Universidad Complutense of Madrid (Spain). NO Ministerio de Economía, Comercio y Empresa ( España) NO Santander- Universidad Complutense de Madrid DS Docta Complutense RD 4 abr 2025