White tea (Camellia sinensis) extract reduces oxidative stress and triacylglycerols in obese mice


Autoria(s): Teixeira,Lílian Gonçalves; Lages,Priscilla Ceci; Jascolka,Tatianna Lemos; Aguilar,Edenil Costa; Soares,Fabíola Lacerda Pires; Pereira,Solange Silveira; Beltrão,Nathalia Ribeiro Mota; Matoso,Rafael de Oliveira; Nascimento,André Márcio do; Castilho,Rachel Oliveira de; Leite,Jacqueline Isaura Alvarez
Data(s)

01/12/2012

Resumo

White tea is an unfermented tea made from young shoots of Camellia sinensis protected from sunlight to avoid polyphenol degradation. Although its levels of catechins are higher than those of green tea (derived from the same plant), there are no studies addressing the relationship between this tea and obesity associated with oxidative stress.The objective of this study was to evaluate the effect of white tea on obesity and its complications using a diet induced obesity model. Forty male C57BL/6 mice were fed a high-fat diet to induce obesity (Obese group) or the same diet supplemented with 0.5% white tea extract (Obese + WTE) for 8 weeks. Adipose tissue, serum lipid profile, and oxidative stress were studied. White tea supplementation was not able to reduce food intake, body weight, or visceral adiposity. Similarly, there were no changes in cholesterol rich lipoprotein profile between the groups. A reduction in blood triacylglycerols associated with increased cecal lipids was observed in the group fed the diet supplemented with white tea. White tea supplementation also reduced oxidative stress in liver and adipose tissue. In conclusion, white tea extract supplementation (0.5%) does not influence body weight or adiposity in obese mice. Its benefits are restricted to the reduction in oxidative stress associated with obesity and improvement of hypertriacylglycerolemia.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000400015

Idioma(s)

en

Publicador

Sociedade Brasileira de Ciência e Tecnologia de Alimentos

Fonte

Food Science and Technology (Campinas) v.32 n.4 2012

Palavras-Chave #high-fat diet #obesity #oxidative stress #white tea #Camellia sinensis
Tipo

journal article