Brown adipose expansion and remission of glycemic dysfunction in obese SM/J mice
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA661764 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR12601100_1.fastq.gz | Fastqsanger.gz | |||
| SRR12601100_2.fastq.gz | Fastqsanger.gz | |||
| SRR12601101_1.fastq.gz | Fastqsanger.gz | |||
| SRR12601101_2.fastq.gz | Fastqsanger.gz | |||
| SRR12601102_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 256 |
Similar Datasets
Project description:The purpose of the study was to identify differential expression in the interscapular brown adipose tissue of high fat-fed SM/J mice between 20 and 30 weeks of age. Low fat-fed mice at the same ages were used as an intra-strain control, LG/J mice on the same diets and at the same ages were used as an inter-strain control, and reproductive white adipose tissue from the same mice was used as an inter-tissue control.
2020-09-15 | GSE157569 | GEO
Project description:We leverage the SM/J mouse to understand glycemic control in obesity. High-fat-fed SM/J mice initially develop poor glucose homeostasis relative to controls. Strikingly, their glycemic dysfunction resolves by 30 weeks of age despite persistent obesity. The mice dramatically expand their brown adipose depots as they resolve glycemic dysfunction. This occurs naturally and spontaneously on a high-fat diet, with no temperature or genetic manipulation. Removal of the brown adipose depot impairs insulin sensitivity, indicating that the expanded tissue is functioning as an insulin-stimulated glucose sink. We describe morphological, physiological, and transcriptomic changes that occur during the brown adipose expansion and remission of glycemic dysfunction, and focus on Sfrp1 (secreted frizzled-related protein 1) as a compelling candidate that may underlie this phenomenon. Understanding how the expanded brown adipose contributes to glycemic control in SM/J mice will open the door for innovative therapies aimed at improving metabolic complications in obesity.
| S-EPMC7594587 | biostudies-literature
Project description:Gastric bypass surgery (GBP) emerging as a powerful tool for treatment of obesity has been applied for remission of diabetes. However, the GBP global molecular effects on diabetes remission independent of weight loss remain largely unknown. We profiled plasma metabolites and proteins of 10 normoglycemic obese (NO) and 9 diabetic obese (DO) patients at 1-week, 3-months and 1-year stages after Roux-en-Y gastric bypass (RYGB) as well pre-RYGB stage, by which 146 proteins and 128 metabolites were detected from both NO and DO groups at all four stages. By analyzing a set of bi-molecular associations among the corresponding network of the subjects with our newly developed computational method, we defined the representing physiological states (called the edge-states, in contrast to the traditional node-states) and the related molecular networks of NO and DO patients, respectively. The PCA results and hubnetworks of NO subjects were significantly different from those of DO patients; particularly, the hub-network rearrangement of both groups differentially went through after RYGB. In conclusion, by developing network-based systems signatures rather than relying on individual molecules, we for the first time reveal that RYGB generates a unique recovering-path for diabetes remission independent of weight loss.
2017-12-13 | PXD008071 | Pride
Project description:Background: Sm proteins are multimeric RNA-binding factors, found in all three domains of life. Eukaryotic Sm proteins, together with their associated RNAs, form small ribonucleoprotein (RNP) complexes important in multiple aspects of gene regulation. Comprehensive knowledge of the RNA components of Sm RNPs is critical for understanding their functions. Results: We developed a multi-targeting RNA-immunoprecipitation sequencing (RIP-seq) strategy to reliably identify Sm-associated RNAs from Drosophila ovaries and cultured human cells. Using this method, we discovered three major categories of Sm-associated transcripts: small nuclear (sn)RNAs, small Cajal body (sca)RNAs and mRNAs. Additional RIP-PCR analysis showed both ubiquitous and tissue-specific interactions. We provide evidence that the mRNA-Sm interactions are mediated by snRNPs, and that one of the mechanisms of interaction is via base pairing. Moreover, the Sm-associated mRNAs are mature, indicating a splicing-independent function for Sm RNPs. Conclusions: This study represents the first comprehensive analysis of eukaryotic Sm-containing RNPs, and provides a basis for additional functional analyses of Sm proteins and their associated snRNPs outside of the context of pre-mRNA splicing. Our findings expand the repertoire of eukaryotic Sm-containing RNPs and suggest new functions for snRNPs in mRNA metabolism.
2013-12-01 | GSE35842 | GEO
Project description:Background: Sm proteins are multimeric RNA-binding factors, found in all three domains of life. Eukaryotic Sm proteins, together with their associated RNAs, form small ribonucleoprotein (RNP) complexes important in multiple aspects of gene regulation. Comprehensive knowledge of the RNA components of Sm RNPs is critical for understanding their functions. Results: We developed a multi-targeting RNA-immunoprecipitation sequencing (RIP-seq) strategy to reliably identify Sm-associated RNAs from Drosophila ovaries and cultured human cells. Using this method, we discovered three major categories of Sm-associated transcripts: small nuclear (sn)RNAs, small Cajal body (sca)RNAs and mRNAs. Additional RIP-PCR analysis showed both ubiquitous and tissue-specific interactions. We provide evidence that the mRNA-Sm interactions are mediated by snRNPs, and that one of the mechanisms of interaction is via base pairing. Moreover, the Sm-associated mRNAs are mature, indicating a splicing-independent function for Sm RNPs. Conclusions: This study represents the first comprehensive analysis of eukaryotic Sm-containing RNPs, and provides a basis for additional functional analyses of Sm proteins and their associated snRNPs outside of the context of pre-mRNA splicing. Our findings expand the repertoire of eukaryotic Sm-containing RNPs and suggest new functions for snRNPs in mRNA metabolism. RNA-Immunoprecipitation sequencing of RNA-Sm protein complexes.
2013-12-01 | E-GEOD-35842 | biostudies-arrayexpress
Project description:Background: Low-caloric diet (LCD) reduces fat mass excess, improves insulin sensitivity, and alters adipose tissue (AT) gene expression. Yet the relationship with long-term clinical outcomes remains unclear. Objective: We evaluated transcriptome alterations in AT during LCD and association with weight and glycemic outcomes both at LCD termination and 6-month after the LCD. Results: Upon LCD, we identified 1’173 genes differentially expressed; with 350 and 33 genes associated respectively with changes in BMI and Matsuda. Twenty-nine genes were associated with both endpoints. Pathway analyses highlighted enrichment in lipid and glucose metabolism. Models were constructed to predict weight maintainers. A model based on clinical baseline parameters could not achieve any prediction (validation’s AUC= 0.50 [0.36, 0.64]), while a model based on clinical changes during LCD yielded to good performance (AUC=0.73 [0.60, 0.87]). Incorporating baseline expression from the 18 genes outperformed the best clinical model (AUC=0.87 [0.77, 0.96], Delong’s p=0.012). Similar analyses were made to predict subjects with good glycemic improvements. Both baseline- and LCD-based clinical models yielded to similar performance (with best AUC=0.73 [0.60, 0.85]). Addition of expression changes during LCD improved substantially the performance (AUC=0.80 [0.69, 0.92], p=0.058). Conclusions: This study investigated AT transcriptome alterations following LCD in a large cohort of obese, non-diabetic patients. The identified genes enabled to significantly improve clinical models and predict long-term clinical outcomes. These biomarkers may help clinicians understanding the large inter-subject variability and better predict the success of dietary interventions.
2018-03-01 | GSE95640 | GEO
Project description:Pseudomonas syringae pv. syringae SM strain:SM Genome sequencing and assembly
| PRJNA181198 | ENA
Project description:We assessed the effect of dietary glycemic load on miRNA expression in a sample of healthy, premenopausal women participating in a 12 month intervention designed to lower dietary glycemic load. Comparing post-intervention to baseline miRNA expression data of 14 participants receiving the active intervention.
2011-12-19 | E-GEOD-27474 | biostudies-arrayexpress
Project description:Mycobacterium spongiae strain:FSD4b-SM | isolate:FSD4b-SM Genome sequencing and assembly
| PRJNA573113 | ENA
Project description:High blood levels of free fatty acids link obesity with type-2 diabetes, but this connection remains poorly understood. We have investigated lipolysis and glucose homeostasis in recently diagnosed obese type-2 diabetics; in obese insulin resistant non-diabetic subjects (obese-IR) matched for age, sex, body composition and fasting insulin levels; and in healthy lean individuals. Our results show that obese-IR dissociate lipolysis from glycemic control, revealing that the action of compensatory hyperinsulinemia on blood glucose is not mediated by reduced lipolysis. In the obese adipose tissue free fatty acids and glycerol levels were elevated in spite of high local levels of insulin or lactate; correlated with adipocyte size and metabolic inflammation, with reduced adipose tissue mRNA levels of genes implicated in beta-adrenergic signaling, de-novo lipogenesis, and increased expression of genes implicated in adipose tissue hyperplasia. These results shed light on the nature of the interaction between lipolysis and glucose homeostasis and indicate an possible adaptive response to fatness.
2021-04-07 | GSE141432 | GEO