Green tea changes serum and liver metabolomic profiles in mice with high-fat diet-induced obesity.
Mol Nutr Food Res
; 59(4): 784-94, 2015 Apr.
Article
em En
| MEDLINE
| ID: mdl-25631872
ABSTRACT
SCOPE Green tea (GT) consumption helps to prevent and control obesity by stimulating hepatic lipid metabolism. However, GT-induced changes in serum and liver metabolomes associated with the anti-obesity effects are not clearly understood. The aim of this study was to identify and validate metabolomic profiles in the livers and sera of GT-fed obese mice to elucidate the relationship between GT consumption and obesity prevention. METHODS AND RESULTS:
Serum and liver metabolites were analyzed in mice fed normal diet, high-fat diet (HFD), HFD with GT, and HFD with crude catechins, using LC-quadrupole TOF MS. The addition of 1% GT to HFD reduced adipose tissue and the levels of blood triglycerides, glucose, insulin, and leptin elevated in HFD-fed mice. We proposed an HFD-induced obesity pathway and validated it by investigating the key regulatory enzymes of mitochondrial ß-oxidation carnitine palmitoyltransferase-1 and -2, acyl-coenzyme A dehydrogenase, and acetyl-coenzyme A acyltransferase. The results showed that HFD-induced abnormal mitochondrial ß-oxidation was moderated by the consumption of caffeine- and theanine-enriched GT.CONCLUSION:
Results of LC/MS-based metabolomic analysis of obese mice showed changes associated with abnormal lipid and energy metabolism, which were alleviated by GT intake, indicating the mechanism underlying the anti-obesity effects of GT.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Chá
/
Metaboloma
/
Dieta Hiperlipídica
/
Fígado
/
Obesidade
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Idioma:
En
Revista:
Mol Nutr Food Res
Ano de publicação:
2015
Tipo de documento:
Article