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Mol Nutr Food Res ; 66(22): e2200112, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36112603

RESUMO

SCOPE: Metabolic syndrome (MetS) alters the gut microbial ecology and increases the risk of cardiovascular disease. This study investigates whether strawberry consumption reduces vascular complications in an animal model of MetS and identifies whether this effect is associated with changes in the composition of gut microbes. METHODS AND RESULTS: Seven-week-old male mice consume diets with 10% (C) or 60% kcal from fat (high-fat diet fed mice; HF) for 12 weeks and subgroups are fed a 2.35% freeze-dried strawberry supplemented diet (C+SB or HF+SB). This nutritional dose is equivalent to ≈160 g of strawberry. After 12 weeks treatment, vascular inflammation is enhanced in HF versus C mice as shown by an increased monocyte binding to vasculature, elevated serum chemokines, and increased mRNA expression of inflammatory molecules. However, strawberry supplementation suppresses vascular inflammation in HF+SB versus HF mice. Metabolic variables, blood pressure, and indices of vascular function were similar among the groups. Further, the abundance of opportunistic microbe is decreased in HF+SB. Importantly, circulating chemokines are positively associated with opportunistic microbes and negatively associated with the commensal microbes (Bifidobacterium and Facalibaculum). CONCLUSION: Dietary strawberry decreases the abundance of opportunistic microbe and this is associated with a decrease in vascular inflammation resulting from MetS.


Assuntos
Fragaria , Microbioma Gastrointestinal , Síndrome Metabólica , Masculino , Camundongos , Animais , Fragaria/química , Síndrome Metabólica/etiologia , Síndrome Metabólica/tratamento farmacológico , Camundongos Endogâmicos C57BL , Dieta Hiperlipídica/efeitos adversos , Inflamação
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