Project description:The effect of a short-term calorie restricted diet was evaluated in six strains of mice The dietary intervention was initiated at 8 weeks of age and continued until 22 weeks of age Tissues were collected from mice at 22 weeks of age; there were 96 microarrays used in total: for each of the 6 strains of mice, there were 8 control-fed mice and 8 calorie restricted mice (one individual mouse per microarray)
Project description:The effect of a short-term calorie restricted diet was evaluated in six strains of mice The dietary intervention was initiated at 8 weeks of age and continued until 22 weeks of age
Project description:The effect of a short-term calorie restricted diet was evaluated in heart in seven strains of mice The dietary intervention was initiated at 8 weeks of age and continued until 22 weeks of age
Project description:The effect of a short-term calorie restricted diet was evaluated in cerebral cortex in seven strains of mice The dietary intervention was initiated at 8 weeks of age and continued until 22 weeks of age
Project description:The effect of a short-term calorie restricted diet was evaluated in gastrocnemius muscle (GASTROC) in seven strains of mice The dietary intervention was initiated at 8 weeks of age and continued until 22 weeks of age
Project description:The effect of a short-term calorie restricted diet was evaluated in epididymal white adipose tissue (WAT) in seven strains of mice The dietary intervention was initiated at 8 weeks of age and continued until 22 weeks of age
Project description:Leanness is associated with increased lifespan and is linked to favorable metabolic conditions promoting life extension. We show here that deficiency of the lipid synthesis enzyme acyl CoA:diacylglycerol acyltransferase 1 (DGAT1), which reduces body fat in mice, promotes longevity. Female DGAT1-deficient mice were protected from age-related increases in body fat, non-adipose tissue triglycerides, and markers of inflammation in white adipose tissue. These metabolic changes were accompanied by an increased mean and maximal lifespan of ~25% and ~10%, respectively. The gene expression profile of DGAT1-deficient mice was not highly correlated with calorie restriction of sex and age matched wild-type littermates. Our findings indicate that loss of DGAT1-mediated lipid synthesis results in leanness, protects against age-related metabolic consequences, and thus extends longevity. Liver gene expression profiles between short-term calorie restricted wild-type (WTCR) and Dgat1 deficient (KO) middle-aged (15-16 mo) female mice were compared to determine if calorie restriction and Dgat1 deficiency rely on common regulatory pathways for the promotion of longevity. Both CR and KO were compared to middle-aged wild-type female littermates fed a standard chow diet ad libitum (WTAL).
Project description:A preoperative short-term diet combining calorie and protein restriction diet given during five days before kidney donation and transplantation improves kidney outcome in live kidney donors and kidney transplant recipients, which shows that the benefits of dietary restriction on stress resistance can be induced rapidly in humans, and may be used for clinically relevant endpoints.