Short-term hypercaloric carbohydrate loading increases surgical stress resilience by inducing FGF21.
Nat Commun
; 15(1): 1073, 2024 Feb 05.
Article
en En
| MEDLINE
| ID: mdl-38316771
ABSTRACT
Dietary restriction promotes resistance to surgical stress in multiple organisms. Counterintuitively, current medical protocols recommend short-term carbohydrate-rich drinks (carbohydrate loading) prior to surgery, part of a multimodal perioperative care pathway designed to enhance surgical recovery. Despite widespread clinical use, preclinical and mechanistic studies on carbohydrate loading in surgical contexts are lacking. Here we demonstrate in ad libitum-fed mice that liquid carbohydrate loading for one week drives reductions in solid food intake, while nearly doubling total caloric intake. Similarly, in humans, simple carbohydrate intake is inversely correlated with dietary protein intake. Carbohydrate loading-induced protein dilution increases expression of hepatic fibroblast growth factor 21 (FGF21) independent of caloric intake, resulting in protection in two models of surgical stress renal and hepatic ischemia-reperfusion injury. The protection is consistent across male, female, and aged mice. In vivo, amino acid add-back or genetic FGF21 deletion blocks carbohydrate loading-mediated protection from ischemia-reperfusion injury. Finally, carbohydrate loading induction of FGF21 is associated with the induction of the canonical integrated stress response (ATF3/4, NF-kB), and oxidative metabolism (PPARγ). Together, these data support carbohydrate loading drinks prior to surgery and reveal an essential role of protein dilution via FGF21.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Procedimientos Quirúrgicos Operativos
/
Daño por Reperfusión
/
Factores de Crecimiento de Fibroblastos
/
Dieta de Carga de Carbohidratos
Tipo de estudio:
Guideline
/
Prognostic_studies
Idioma:
En
Revista:
Nat Commun
/
Nature communications
Asunto de la revista:
BIOLOGIA
/
CIENCIA
Año:
2024
Tipo del documento:
Article