Science advances · 2025
Hypophagia and body weight loss by tirzepatide are accompanied by fewer GI adverse events compared to semaglutide in preclinical models.
СтатьяНазвание и аннотация: Перевод в очереди
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Borner Tito, Pataro Allison M, Doebley Sarah A, Furst Charles D, White Alex D, Gao Serena X, Chow Angela, Sanchez-Navarro Marcos J, Ghidewon Misgana Y, Halas Julia G, Mohiby Allaha Z, Willard Francis S, Grill Harvey J, Ai Minrong, Samms Ricardo J, Hayes Matthew R, De Jonghe Bart C
Аннотация
Glucagon-like peptide-1 receptor (GLP-1R)/glucose-dependent insulinotropic peptide receptor (GIPR) agonistic analogs have yielded superior results in enhancing glycemic control and weight management compared to GLP-1R agonism alone. Intriguingly, GIPR agonism appears to induce antiemetic effects, potentially alleviating part of the nausea and vomiting side effects common to GLP-1R agonists like semaglutide. Here, we show in rats and shrews that GIPR agonism blocks emesis and attenuates other malaise behaviors elicited by GLP-1R activation while maintaining reduced food intake and body weight loss and improved glucose tolerance. The GLP-1R/GIPR agonist tirzepatide induced significantly fewer side effects than equipotent doses of semaglutide. These findings underscore the therapeutic potential of combined pharmaceutical strategies activating both incretin systems, leading to enhanced therapeutic index and reduced occurrence of nausea and vomiting for obesity and diabetes treatments.