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

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

White tea (Camellia sinensis) extract reduces oxidative stress and triacylglycerols in obese mice Extrato de chá branco reduz extresse oxidativo e triacilglicerois em camundongos obesos

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.<br>O chá branco é um chá não fermentando feito a partir de brotos jovens da Camellia sinensis protegidos da luz solar para evitar a degradação de polifenóis. Embora os níveis de catequinas sejam mais elevados que os do chá verde (mesma planta), nenhum estudo foi realizado sobre estresse oxidativo relacionado obesidade. Nosso objetivo foi avaliar o efeito do chá verde na obesidade e suas complicações, usando um modelo de obesidade induzida por dieta. Quarenta camundongos C57BL/6 machos foram alimentados com dieta hiperlipídica para indução da obesidade ou mesma dieta suplementada com 0,5% de extrato de chá branco durante 8 semanas. Foram estudadoso tecido adiposo bem como o perfil lipídico e o estresse oxidativo. A suplementação com chá branco não foi capaz de reduzir a ingestão alimentar, peso corporal ou adiposidade visceral. De forma similar, não foram encontradas diferenças no perfil de lipoproteínas ricas em colesterol. Uma redução de triacilgliceróis sanguíneos, associada ao aumento de lipídios cecais, foi observada no grupo suplementado com chá branco. A suplementação também reduziu o estresse oxidativo no fígado e tecido adiposo. Em conclusão, suplementação com extrato de chá branco (0,5%) não interfere no peso corporal ou adiposidade em camundongos obesos. Seus benefícios são restritos redução do estresse oxidativo associada obesidade e melhora da hipertrigliceridemia