Maternal Brown Fat Thermogenesis Programs Glucose Tolerance in the Male Offspring
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ABSTRACT:
PROVIDER: PRJNA606192 | ENA |
REPOSITORIES: ENA
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Project description:We tested if minor changes in maternal non-shivering thermogenesis during pregnancy can severely alter the phenotype of the offspring already in the next generation. Therefore, male offspring of dams lacking the uncoupling protein 1 (UCP1-KO) in the thermogenic brown adipose tissue were analysed. Genome-wide expression profiling identified several alterations in the hepatic transcriptomic landscape, demonstrating that even minor differences in the demand for maternal thermogenesis profoundly and permanently alter hepatic gene activity in the adult offspring. Liver gene expression data of offspring from WT and UCP1-KO dams.
2020-11-09 | GSE145143 | GEO
Project description:We tested if minor changes in environmental temperature during pregnancy can severely alter the phenotype of the offspring already in the next generation. Genome-wide expression profiling of liver samples obtained from adult male mice offspring identified several alterations in the hepatic transcriptomic landscape, thus demonstrating that even minor differences in the demand for maternal thermogenesis profoundly and permanently alter hepatic gene activity in the adult offspring. Liver gene expression data of offspring from dams that were kept at different ambient temperatures (30°C, 23°C, 18°C, 10°C) only during pregnancy.
2020-11-09 | GSE145142 | GEO
Project description:Maternal Brown Fat Thermogenesis Programs Glucose Tolerance in the Male Offspring
| PRJNA606193 | ENA
Project description:Metabolomics dataset of serum from T3-treated dams. Related to following publication by Oelkrug et al: "Maternal thyroid hormone receptor beta activation sparks brown fat thermogenesis in the offspring"
2023-01-11 | MSV000091042 | GNPS
Project description:Analysis of glucose and Lipid metabolism in male and female offspring after protein restriction of the mother Male offspring showed features of metabolic syndrome after receiving a high fat diet, regardless of the diet of the dam. Glucose and lipid metabolism in male offspring was unaltered. Insulin sensitivity and hepatic fatty acid storage in female offspring of low-protein-fed dams changed in such a way that it resembled the male pattern of insulin sensitivity and hepatic fatty acid storage. Microarray analysis on hepatic gene expression patterns confirmed these findings. We therefore conclude that in mice, maternal protein restriction does not change the response of glucose and fatty acid metabolism to a high fat diet in male offspring, but does program metabolism in female offspring in such a way that it resembles male metabolism. Our findings might have implications for potential future gender-specific treatment of the features of metabolic diseases. Total RNA obtained from liver (16 samples per gender) were compared in the different groups. In total, 4 groups per gender, each group consisting of 4 biological replicates.
2012-02-08 | E-GEOD-15940 | biostudies-arrayexpress
Project description:Brown adipose tissue (BAT) is best known for thermogenesis. Whereas numerous studies in rodents found tight associations between the metabolic benefits of BAT and enhanced whole-body energy expenditure, emerging evidence in humans suggests that BAT is protective against Type 2 diabetes independent of body-weight. The underlying mechanism for this dissociation remained unclear. Here, we report that impaired mitochondrial flux of branched-chain amino acids (BCAA) in BAT, by deleting mitochondrial BCAA carrier (MBC, encoded by Slc25a44), was sufficient to cause systemic insulin resistance without affecting whole-body energy expenditure or body-weight. We found that brown adipocytes catabolized BCAAs in the mitochondria as essential nitrogen donors for the biosynthesis of glutamate, N-acetylated amino acids, and one of the products, glutathione. BAT-selective impairment in mitochondrial BCAA flux led to elevated oxidative stress and insulin resistance in the liver, accompanied by reduced levels of BCAA-nitrogen derived metabolites in the circulation. In turn, supplementation of glutathione restored insulin sensitivity of BAT-specific MBC knockout mice. Notably, a high-fat diet rapidly impaired BCAA catabolism and the synthesis of BCAA-nitrogen derived metabolites in the BAT, while cold-induced BAT activity is coupled with an active synthesis of these metabolites. Together, the present work uncovers a mechanism through which brown fat controls metabolic health independent of thermogenesis via BCAA-derived nitrogen carriers acting on the liver.
2024-02-15 | PXD043992 | Pride
Project description:Brown adipose tissue (BAT) is best known for thermogenesis. Whereas numerous studies in rodents found tight associations between the metabolic benefits of BAT and enhanced whole-body energy expenditure, emerging evidence in humans suggests that BAT is protective against Type 2 diabetes independent of body-weight. The underlying mechanism for this dissociation remained unclear. Here, we report that impaired mitochondrial flux of branched-chain amino acids (BCAA) in BAT, by deleting mitochondrial BCAA carrier (MBC, encoded by Slc25a44), was sufficient to cause systemic insulin resistance without affecting whole-body energy expenditure or body-weight. We found that brown adipocytes catabolized BCAAs in the mitochondria as essential nitrogen donors for the biosynthesis of glutamate, N-acetylated amino acids, and one of the products, glutathione. BAT-selective impairment in mitochondrial BCAA flux led to elevated oxidative stress and insulin resistance in the liver, accompanied by reduced levels of BCAA-nitrogen derived metabolites in the circulation. In turn, supplementation of glutathione restored insulin sensitivity of BAT-specific MBC knockout mice. Notably, a high-fat diet rapidly impaired BCAA catabolism and the synthesis of BCAA-nitrogen derived metabolites in the BAT, while cold-induced BAT activity is coupled with an active synthesis of these metabolites. Together, the present work uncovers a mechanism through which brown fat controls metabolic health independent of thermogenesis via BCAA-derived nitrogen carriers acting on the liver.
2024-02-15 | PXD044020 | Pride
Project description:Poor maternal diet can lead to metabolic disease in offspring, whereas maternal exercise may have beneficial effects on offspring health. In this study, we determined ifmaternal exercise could reverse the detrimental effects of maternal high-fat feeding on offspring metabolism of female mice. C57BL/6 female mice were fed a chow (21%) or high-fat (60%) diet and further divided by housing in static cages or cages with running wheels for 2 weeks prior to breeding and throughout gestation. Females were bred with chow-fed sedentary C57BL/6 males. High fat-fed sedentary dams produced female offspring with impaired glucose tolerance compared with offspring of chow-fed dams throughout their first year of life, an effect not present in the offspring from high fat-fed dams that had trained. Offspring from high fat-fed trained dams had normalized glucose tolerance, decreased fasting insulin, and decreased adiposity. Liver metabolic function, measured by hepatic glucose production in isolated hepatocytes, hyperinsulinemic-euglycemic clamps, liver triglyceride content, and liver enzyme expression, was enhanced in offspring from trained dams. In conclusion, maternal exercise negates the detrimental effects of a maternal high-fat diet on glucose tolerance and hepatocyte glucose metabolism in female offspring. The ability of maternal exercise to improve the metabolic health of female offspring is important, as this intervention could combat the transmission of obesity and diabetes to subsequent generations.
| S-EPMC5521858 | biostudies-other
Project description:Reduced representation bisulfite sequencing was used to explore differentially methylated regions and sites within the amygdala of female rat offspring during earlylife and adulthood, in response to maternal high fat diet exposure. DMRs shared across early life and adulthood included pathways involved in neurodevelopment and genes regulating the DNMT machinery and protein function. To our knowledge, this is the first study to identify persistent genome-wide DNA methylation modifications associated with mHFD exposure in offspring from early life to adulthood.
2020-09-18 | GSE158170 | GEO
Project description:Dopamine signaling is a crucial part of the brain reward system and can affect feeding behavior. Dopamine receptors are also expressed in the hypothalamus, which is known to control energy metabolism in peripheral tissues. Here we show that pharmacological or chemogenetic stimulation of dopamine receptor 2 (D2R) expressing cells in the lateral hypothalamic area (LHA) and the zona incerta (ZI) decreases body weight and stimulates brown fat activity in rodents in a feeding-independent manner. LHA/ZI D2R stimulation requires an intact sympathetic nervous system and orexin system to exert its action and involves inhibition of PI3K in the LHA/ZI. We further demonstrate that, as early as 3 months after onset of treatment, patients treated with the D2R agonist cabergoline experience an increase in energy expenditure that persists for one year, leading to total body weight and fat loss through a prolactin-independent mechanism. Our results may provide a mechanistic explanation for how clinically used D2R agonists act in the CNS to regulate energy balance.
| S-EPMC6774781 | biostudies-literature