Project description:Despite a variety of seasoning ingredients in diets, little is known about their cooperative effect on animal metabolism. We fed rats a diet containing 30 wt.% instant noodle with a 26% fat-to-energy ratio for 30 days (N-group). Compared with rats that were fed the same diet without seasonings (C-group), the N-group showed lower liver triacylglycerol levels and higher fecal cholesterol levels. To assess the mechanisms underlying this phenotype, we conducted transcriptome analyses of the hypothalamic–pituitary axis (HP), liver and white adipose tissue (WAT). Our results suggest that these ingredients may affect lipid homeostasis via the HP axis.
Project description:Despite a variety of seasoning ingredients in diets, little is known about their cooperative effect on animal metabolism. We fed rats a diet containing 30 wt.% instant noodle with a 26% fat-to-energy ratio for 30 days (N-group). Compared with rats that were fed the same diet without seasonings (C-group), the N-group showed lower liver triacylglycerol levels and higher fecal cholesterol levels. To assess the mechanisms underlying this phenotype, we conducted transcriptome analyses of the hypothalamic–pituitary axis (HP), liver and white adipose tissue (WAT). Our results suggest that these ingredients may affect lipid homeostasis via the HP axis.
Project description:Despite a variety of seasoning ingredients in diets, little is known about their cooperative effect on animal metabolism. We fed rats a diet containing 30 wt.% instant noodle with a 26% fat-to-energy ratio for 30 days (N-group). Compared with rats that were fed the same diet without seasonings (C-group), the N-group showed lower liver triacylglycerol levels and higher fecal cholesterol levels. To assess the mechanisms underlying this phenotype, we conducted transcriptome analyses of the hypothalamic–pituitary axis (HP), liver and white adipose tissue (WAT). Our results suggest that these ingredients may affect lipid homeostasis via the HP axis.
Project description:Cold stimulation not only activates the thermogenesis activity of brown adipose tissue (BAT) but also induces browning of white adipose tissue (WAT). To elucidate the mechanisms underlying cold-induced thermogenesis and adipose tissue remodeling, we used RNA sequencing (RNA-seq) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) to examine the transcriptomic and proteomic profiles, respectively, of adipose tissue from mice exposed to cold or thermoneutral temperature. The male C57BL/6J mice were divided into three groups (5 mice/group), two groups were kept at 6 ˚C for 6 h and 24 h, respectively, and the control group were kept at 22 ˚C for 24 h. Subsequently, the BAT and inguinal WAT of each mouse were dissected and subjected to RNA-seq and data-independent acquisition (DIA)-based LC-MS/MS.
Project description:To investigate the effect of miR-503 in aging associated type 2 diabetes, target genes of miR-503 need to be investigated. The global miR-322-503-351 deletion (KO) mouse was constructed, and RNA-seq was then performed on aged mouse liver and white adipose tissue (WAT).
Project description:CD44 expression has been shown to be enhanced in the liver and white adipose tissue (WAT) during obesity, suggesting a possible regulatory role for CD44 in metabolic syndrome. To study this hypothesis, we compared the gene expression profiles in liver and in WAT between WT and CD44 knockout (CD44KO) mice fed a high-fat diet (HFD) for 21 weeks. This analysis demonstrated that several genes associated with triglyceride synthesis and accumulation, including Mogat2, Cidea, Cidea, Apoa4, and Elovl7, were decreased in the livers of CD44KO mice compared to WT mice. Many genes encoding pro-inflammatory chemokines and chemokine receptors also were decreased in the livers of CD44KO mice. Analysis with WAT showed that genes associated with triglyceride accumulation, including Fasn, Elovl6 and Mogat2, were increased in WAT of CD44KO(HFD) mice compared to WT(HFD) mice. Moreover, many genes associated with inflammation, including cytokines (Cxcl14, Cxcl12, Il33, and Il2), cytokine receptors (Ccr1, Il6ra, Il10rb), trypases (Tpsb2, Tpsab1, Tpsg1), and cellular matrix proteins (Integrin ?4 (Itga4), ItgaM, Itgb2), were decreased in WAT of CD44(HFD) compared to WT(HFD) mice. This study indicates that CD44 plays a critical role in regulating several aspects of metabolic syndrome. Liver and white adipose tissue (WAT) total RNAs were purified from 5 WT and 5 CD44 knockout mice fed with a high-fat diet for 21 weeks. Then, samples were applied on Agilent mouse genome chips.
Project description:Transcriptomic analysis on white adipose tissues (WAT), brown adipose tissues (BAT), skeletal muscles and liver from cold-exposed obese mice treated with KPT-330 or DMSO, and those from obese mice housed at ambient temperature indicated that KPT-330 profoundly modulates immune responses in these thermogenic tissues and organs.
Project description:global proteomic analysis of subcutaneous white adipose tissue (sWAT) revealed a marked upregulation of proteins involved in oxidative phosphorylation in both male and female KPC mice relative to controls. We also observed a similar induction of oxidative phosphorylation in non-tumour animals treated with the β3-AR agonist CL-316243 to mimic the physiological induction of WAT browning.
Project description:In addition to the pathological processes in the vascular wall, atherosclerotic coronary artery disease (CAD) development is affected other tissues, including metabolic tissues such as liver and white adipose tissue (WAT). However, the transcriptional events occurring in metabolic tissues in response to pro-atherosclerotic conditions (hypercholesterolemia and obesogenic diet), remain incompletely understood. Here, we profile liver and WAT gene expression in mouse at increasing exposure levels of atherogenic factors.