Antiobesity Effect of N-Acetylneuraminic Acid by Enhancing Antioxidative Capacity in Mice Fed a High-Fat Diet.
J Med Food
; 26(8): 550-559, 2023 Aug.
Article
en En
| MEDLINE
| ID: mdl-37335945
The sialic acid N-acetylneuraminic acid (NANA), an essential factor in bioregulation, is a functional food component that is known to have beneficial health effects, but its antiobesity effect has not been clearly understood. Adipocyte dysfunction in obesity involves a decrease in the level of NANA sialylation. In this study, we investigated the antiobesity effect of NANA in mice fed a high-fat diet (HFD) and in 3T3-L1 adipocytes. Male C57BL/6J mice were randomly divided into three groups and administered the following diets: a normal diet, an HFD, and an HFD with 1% NANA supplementation for 12 weeks. NANA supplementation significantly reduced body weight gain; epididymal adipose tissue hypertrophy; and serum lipid, fasting glucose, and aspartate transaminase levels compared with those in HFD mice. The percentage of lipid droplets in hepatic tissue was also decreased by NANA supplementation in HFD mice. The downregulation of Adipoq expression and upregulation of Fabp4 expression induced by HFD in epididymal adipocytes were improved by NANA supplementation. The downregulation of Sod1 expression and increase in malondialdehyde level were induced by HFD, and they were significantly improved in the liver by NANA supplementation, but not in epididymal adipocytes. However, NANA supplementation had no effect on sialylation and antioxidant enzyme levels in mouse epididymal adipocytes and 3T3-L1 adipocytes. Overall, NANA exerts antiobesity and antihypolipidemic effects and may be beneficial in suppressing obesity-related diseases.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ácido N-Acetilneuramínico
/
Fármacos Antiobesidad
Límite:
Animals
Idioma:
En
Revista:
J Med Food
Asunto de la revista:
CIENCIAS DA NUTRICAO
/
MEDICINA
Año:
2023
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Estados Unidos