Project description:MTCH2 is a protein localized in the outer membrane of mitochondria. It belongs to the solute carrier 25 family, but its substrates or transporter function remains unknown. Previous research links MTCH2 to apoptosis induction, and Alzheimer’s disease, mitochondrial metabolism and dynamics, and MTCH2 has been shown to function as a protein insertase and scramblase. Moreover, MTCH2 is a significant regulator of adipocyte differentiation and lipid homeostasis. Genome-wide association studies have identified MTCH2 variants to be associated with increased body mass index, obesity, and diabetes risk. Thus, MTCH2 emerges as a promising candidate for modulating adipocyte function and whole-body energy metabolism, but its specific metabolic role in mature adipose tissues remains unexplored. In this study, we show that MTCH2 regulates mitochondrial function and whole-body energy expenditure by regulating lipid utilization in adipose tissue.
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:The 21st century is an era of molecular breeding, leading to fundamental dairy market and production system changes. Milk fat is the main economic trait in dairy cattle production. Our previous study revealed that the ACADSB gene has a crucial regulatory role in lipid metabolism, which can alter the contents of TGs, CHOL and fatty acids by regulating some related gene which involve in lipid metabolism. As usual, when we explored the function of interest genes, we often design interference and overexpression vectors to regulate the expression level of related gene, and transiently transfect vectors into cells, however, it is limited by transfection efficiency. therefore, we committed to finding a stable mode of gene expression. Knocking out of the ACADSB gene in bovine mammalian epithelial cells (bMECs), which represents a promising and effective means of further research on the effects of ACADSB in vivo lipid metabolism of dairy cattle. At the same time, the knock-out ACADSB gene's bMECs could also be useful genetic material and tools for future research into gene functions related to lipid and fatty acid metabolism, which also can directly use for further exploring the gene molecular mechanism or related pathway.
Project description:Radix notoginseng is widely used to treat ischemic heart disease in China and other Asian countries, and notoginsenoside R1 (NGR1) is its characteristic and large-amount ingredient. However, the potential molecular mechanisms of NGR1 improving ischemic heart diseases are unclear. Our results revealed that NGR1 improved the echocardiographic, tissue pathological and serum biochemical perturbations in myocardial ischemic rats. The network pharmacology studies indicated that NGR1 mainly regulated smooth muscle cell proliferation, vasculature development and lipid metabolism signaling, especially PI3K/AKT pathway. The myocardial proteomics revealed that the function of NGR1 was focused on regulating metabolic progresses and energy supply processes. The combining research of reverse-docked targets and differential proteins demonstrated that NGR1 modulated lipid metabolism in ischemic myocardial and mTOR and AKT were key targets. Conventional MD simulation was adopted to investigate the interference effect of NGR1 on the structure stabilization of mTOR and AKT complex. The results suggested that NGR1 can strengthen the affinity stabilization of mTOR and AKT.