Project description:The beneficial effects of dietary restriction (DR) are associated with a rearrangement of gene expression that modulate metabolic and cytoprotective pathways. However, the effect of DR on the cerebellar transcriptome remained to be fully defined. Therefore we analyzed the effect of 30% DR on the transcriptome of cerebellar cortex of young-adult male mice using RNAseq.
Project description:Caloric restriction is a robust intervention to increase life span. Giving less food (CR), or allowing free access to diluted diet with indigestible components (CD) are two methods to impose restriction. CD does not generate the same lifespan effect as CR. We compared responses of C57BL/6 mice to equivalent levels of CR and CD. Our study calorie restriction and calorie two restriction methods different effect on hypothamic gene expression pattern, RNA-seq was performed using hypothalamus of mice with 2 methods treatment as well as control group.
Project description:FGF21 is a circulating hormone that is required for metabolic responces and transcriptional changes to protein restriction. In the current study, we observed increased fibrosis and macrophages inflitration into kidney of FGF21 KO mice fed a LP diet compared to NP diet-fed animals, which is not observed in WT mice. The RNAseq experiment was conducted to compare the effect of LP in WT and FGF21 KO mice on renal transcriptome.
Project description:Feed restriction and L-carnitine infusion are known to affect the liver metabolism of dairy cows. In the present experiment the effects on liver transcriptome of feed restriction and L-carnitine abomasal infusion and the interaction of the two in mid-lactation Holstein dairy cows was assessed. Data clearly indicated a lack of transcriptomics effect by L-carnitine but a strong effect due to feed restriction. The functional analysis identified a overall reduction of cholesterol synthesis and oxidative phosphorylation and data suggested an increase flux toward gluconeogenesis and fatty acid oxidation.
Project description:Therapeutic strategies to treat acute kidney injury (AKI) are lacking. Preconditioning by hypoxia (HP) and caloric restriction (CR) is highly protective in rodent AKI models. The underlying molecular mechanisms are unknown. A comparative transcriptome analysis after HP and CR identified Kynureninase (KYNU) as a common downstream target. Using a newly generated KYNU-deficient mouse line, we show that KYNU contributes to the protective effect of preconditioning. Metabolome, transcriptome and proteome analyses reveal KYNU as necessary for CR-associated maintenance of nicotinamide adenine dinucleotide (NAD+) levels. Importantly, the impact of CR on the de novo NAD+ biosynthesis pathway can be recapitulated in humans.
Project description:Dietary methionine restriction results in a robust activation of transcription factor, NRF2, and its target gene expression in the liver. In the current study, we observed liver-specific knockout NRF2 did not affect the physiological responses due to MR consumption. Therefore, there are other transcription factors compensate for the loss of NRF2 in the liver to mediate the effect of MR. The RNAseq experiment was comducted to compare the effect of MR diet in NRF2 WT and KO mice on hepatic transcriptome.