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White tea alleviates non-alcoholic fatty liver disease by regulating energy expenditure and lipid metabolism

ABSTRACT: White tea alleviates non-alcoholic fatty liver disease by regulating energy expenditure and lipid metabolism

PROVIDER: PRJNA763199 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15894614_1.fastq.gz	Fastqsanger.gz
	SRR15894614_2.fastq.gz	Fastqsanger.gz
	SRR15894615_1.fastq.gz	Fastqsanger.gz
	SRR15894615_2.fastq.gz	Fastqsanger.gz
	SRR15894616_1.fastq.gz	Fastqsanger.gz

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White tea alleviates non-alcoholic fatty liver disease by regulating energy expenditure and lipid metabolism

Project description:Non-alcoholic fatty liver disease (NAFLD) is one of the leading causes of liver disease, which lacks effective treatments. Abnormal lipid metabolism and inflammation are the most prominent pathological manifestations of NAFLD. Recently, it has been reported that white tea extract (WTE) can regulate lipid metabolism in human adipocytes and liver cancer cells in vitro. However, its beneficial effects on NAFLD and the underlying mechanisms remain largely unknown. Here, we showed that WTE alleviated obesity, lipid accumulation, hepatic steatosis, and liver injury in a mouse model of NAFLD. Mechanistically, we demonstrated that WTE exerted the anti-NAFLD effect by decreasing the expression of genes involved in lipid transport and synthesis processes while activating genes associated with energy expenditure. In addition, a comparison of the transcriptional responses of WTE with that of green tea extract (GTE) revealed that WTE can not only regulate lipid metabolism and stress response like GTE but also regulate antioxidant and inflammatory pathways more effectively. Taken together, our findings demonstrate that WTE inhibits the progression of NAFLD in a mouse model and indicate that WTE can be a potential dietary intervention for NAFLD.

2022-06-16 | GSE184113 | GEO

GDF15 and energy expenditure

Project description:GDF15 and energy expenditure

| PRJNA957834 | ENA

Deletion of the mitochondrial calcium uniporter in adipose tissue promotes energy expenditure and alleviates diet-induced obesity

Project description:Objectives: Studies have shown a correlation between obesity and mitochondrial calcium homeostasis, yet it is unclear whether and how Mcu regulates adipocyte lipid deposition. This study aims to provide new potential target for the treatment of obesity and related metabolic diseases, and to explore the function of Mcu in adipose tissue. Methods: We firstly investigated the role of mitoxantrone, an Mcu inhibitor, in the regulation of glucose and lipid metabolism in mouse adipocytes (3T3-L1 cells). Secondly, C57BL/6J mice were used as a research model to investigate the effects of Mcu inhibitors on fat accumulation and glucose metabolism in mice on a high-fat diet (HFD), and by using CRISPR/Cas9 technology, adipose tissue-specific Mcu knockdown mice (Mcu fl/+ AKO) and Mcu knockout of mice (Mcu fl/fl AKO) were obtained, to further investigate the direct effects of Mcu on fat deposition, glucose tolerance and insulin sensitivity in mice on a high-fat diet. Results: we found the Mcu inhibitor reduced adipocytes lipid accumulation and adipose tissues mass in mice fed an HFD. Both Mcu fl/+ AKO mice and Mcu fl/fl AKO mice were resistant to HFD-induced obesity, compared to control mice. Mice with Mcu fl/fl AKO showed improved glucose tolerance and insulin sensitivity as well as reduced hepatic lipid accumulation. Mechanistically, inhibition of Mcu promoted mitochondrial biogenesis and adipocyte browning, increase energy expenditure and alleviates diet-induced obesity. Conclusion: Our study demonstrates a link between adipocyte lipid accumulation and mCa2+ levels, suggesting that adipose-specific Mcu deficiency alleviates HFD-induced obesity and ameliorates metabolic disorders such as insulin resistance and hepatic steatosis. These effects may be achieved by increasing mitochondrial biosynthesis, promoting white fat browning and enhancing energy metabolism.

2023-11-12 | GSE247235 | GEO

Deletion of the mitochondrial calcium uniporter in adipose tissue promotes energy expenditure and alleviates diet-induced obesity

Project description:Deletion of the mitochondrial calcium uniporter in adipose tissue promotes energy expenditure and alleviates diet-induced obesity

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An insulin-stimulated proteolytic mechanism links energy expenditure with glucose uptake

Project description:Mechanisms to coordinately regulate oxidative metabolism and glucose transport into cells are not well described. In muscle and fat, insulin mobilizes GLUT4 glucose transporters to the cell surface in part by stimulating the site-specific endoproteolytic cleavage of TUG proteins. Here, we show that the TUG C-terminal cleavage product enters the nucleus, binds the transcriptional 30 regulators PGC-1a and PPARg, and increases oxidative metabolism, thermogenic protein expression, and energy expenditure. The PPARg2 Pro12Gly polymorphism, which confers reduced diabetes risk, enhances TUG binding. The TUG cleavage product stabilizes PGC-1a, so that both proteins are susceptible to an Ate1 arginyltransferase -dependent degradation mechanism. We conclude that TUG cleavage coordinates energy expenditure with glucose 35 uptake, and that alterations in this pathway may contribute to metabolic disease.

2020-07-23 | GSE134846 | GEO

A Prader-Willi locus lncRNA cloud modulates diurnal genes and energy expenditure.

Project description:Prader-Willi syndrome (PWS), a genetic cause of childhood obesity, is characterized by intellectual disabilities and sleep abnormalities. PWS-causing deletions include a neuronal long, non-coding RNA (lncRNA) processed into small nucleolar RNAs and a spliced lncRNA,116HG. We show that 116HG forms a subnuclear RNA cloud that co-purifies with the transcriptional activator RBBP5 and active metabolic genes, remains tethered to the site of its transcription and increases in size in postnatal neurons. Snord116del mice lacking 116HG exhibited increased energy expenditure corresponding to dysregulation of diurnally expressed Mtor and circadian genes Clock, Cry1, and Per2. Genomic and metabolic analyses demonstrate altered diurnal energy regulation in the Snord116del mouse cortex and link the loss of 116HG to the energy imbalance observed in PWS. Examination of lncRNA binding sites by ChIRP-seq using an oligo-based purification method from WT and Snord116del (+/-) mouse brain with specific and nonspecific control oligos. Transcript abundance levels by RNA-seq analysis of 3 adult WT and 2 adult Snord116del (+/-) mouse brain cortices at Zt+6 and 2 adult WT and 2 adult Snord116del (+/-) mouse brain cortices at Zt+16.

2013-06-20 | E-GEOD-43575 | biostudies-arrayexpress

an evergrowing tea (Camellia sinensis L.) cultivar

Project description:Tea (Camellia sinensis (L.) O. Kuntze) is an important non-alcoholic commercial beverage crop. Tea tree is a perennial plant, and winter dormancy is its part of biological adaptation to environmental changes. We recently discovered a novel tea tree cultivar that can generate tender shoots in winter, but the regulatory mechanism of this ever-growing tender shoot development in winter is not clear. In this study, we conducted a proteomic analysis for identification of key genes and proteins differentially expressed between the winter and spring tender shoots, to explore the putative regulatory mechanisms and physiological basis of its ever-growing character during winter.

2022-02-23 | PXD008958 | Pride

An insulin-stimulated proteolytic mechanism links energy expenditure with glucose uptake

Project description:An insulin-stimulated proteolytic mechanism links energy expenditure with glucose uptake

| PRJNA556648 | ENA

A Prader-Willi locus lncRNA cloud modulates diurnal genes and energy expenditure.

2013-06-20 | GSE43575 | GEO

Determining Energy Needs in Colorectal Cancer

Project description:This is an observational study to assess the determinants of energy expenditure in cancer, and how those change throughout the disease trajectory. The investigators hypothesize that skeletal muscle will be the primary determinant of energy expenditure throughout the disease trajectory.

| 2242749 | ecrin-mdr-crc

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