Weight loss resulted in increased expression of the anti-inflammatory protein, CRISPLD2, in mouse adipose tissue
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ABSTRACT:
PROVIDER: PRJNA558135 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR9881220_1.fastq.gz | Fastqsanger.gz | |||
| SRR9881220_2.fastq.gz | Fastqsanger.gz | |||
| SRR9881221_1.fastq.gz | Fastqsanger.gz | |||
| SRR9881221_2.fastq.gz | Fastqsanger.gz | |||
| SRR9881222_1.fastq.gz | Fastqsanger.gz |
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Project description:Purpose: NGS was used to determine if a distinct transcriptomic profile is observed between lean, obese and weight loss fat Methods: We carried out RNA-Seq analysis of epididymal adipose mice ad libitum fed for 10 weeks either a high fat diet (HFD) or a regular chow diet (RD), versus a cohort of mice fed HFD for the first 5 weeks before swapping to RD for the remainder (SWAP). Results: SWAP feeding resulted in weight loss with a parallel improvement in insulin sensitivity. RNA-Seq revealed several transcriptomic signatures distinct to SWAP adipose, distinguished from both RD and HFD adipose. We found a unique up-regulated mRNA encoding a secreted, LPS-binding glycoprotein, CRISPLD2, in SWAP adipose tissue. While cellular CRISPLD2 protein levels were unchanged, plasma CRIPSLD2 levels increased in SWAP mice following weight loss, and can correlate with insulin sensitivity. Conclusions: Taken together, our data demonstrate that CRISPLD2 is a circulating adipokine that may regulate adipocyte remodeling during weight loss.
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Project description:Background. Differential gene expression in adipose tissue during diet-induced weight loss followed by a weight stability period is not well characterized. Markers of these processes may provide a deeper understanding of the underlying mechanisms. Objective. To identify differentially expressed genes in human adipose tissue during weight loss and weight maintenance after weight loss. Design. RNA from subcutaneous abdominal adipose tissue from nine obese subjects was obtained and analyzed at baseline, after weight reduction on a low calorie diet (LCD), and after a period of group therapy in order to maintain weight stability. Results. Subjects lost 18.8 + 5.4% of their body weight during the LCD and maintained this weight during group therapy. Insulin sensitivity (HOMA) improved after weight loss with no further improvement during weight maintenance. Cyclin-dependent kinase inhibitor 2B (CDKN2B) and JAZF zinc finger 1 (JAZF1), associated with type 2 diabetes, were downregulated. We could also confirm the downregulation of candidates for obesity and related traits, such as tenomodulin (TNMD) and matrix metallopeptidase 9 (MMP9), with weight loss. The expression of other candidates, such as cell death-inducing DFFA-like effector A (CIDEA) and stearoyl-CoA desaturase (SCD) were upregulated during weight loss but returned to baseline levels during weight maintenance. Conclusion. Genes in the adipose tissue are differentially expressed during weight loss and weight maintenance after weight loss. Genes that show sustained regulation may be of potential interest as markers of the beneficial effects of weight loss whereas others seem to be primarily involved in the process of weight loss itself.
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Project description:Background. Differential gene expression in adipose tissue during diet-induced weight loss followed by a weight stability period is not well characterized. Markers of these processes may provide a deeper understanding of the underlying mechanisms. Objective. To identify differentially expressed genes in human adipose tissue during weight loss and weight maintenance after weight loss. Design. RNA from subcutaneous abdominal adipose tissue from nine obese subjects was obtained and analyzed at baseline, after weight reduction on a low calorie diet (LCD), and after a period of group therapy in order to maintain weight stability. Results. Subjects lost 18.8 + 5.4% of their body weight during the LCD and maintained this weight during group therapy. Insulin sensitivity (HOMA) improved after weight loss with no further improvement during weight maintenance. Cyclin-dependent kinase inhibitor 2B (CDKN2B) and JAZF zinc finger 1 (JAZF1), associated with type 2 diabetes, were downregulated. We could also confirm the downregulation of candidates for obesity and related traits, such as tenomodulin (TNMD) and matrix metallopeptidase 9 (MMP9), with weight loss. The expression of other candidates, such as cell death-inducing DFFA-like effector A (CIDEA) and stearoyl-CoA desaturase (SCD) were upregulated during weight loss but returned to baseline levels during weight maintenance. Conclusion. Genes in the adipose tissue are differentially expressed during weight loss and weight maintenance after weight loss. Genes that show sustained regulation may be of potential interest as markers of the beneficial effects of weight loss whereas others seem to be primarily involved in the process of weight loss itself. Nine participants were prescribed a low calorie diet (LCD) containing 1200 kcal/day for approximately three months (101 ± 26 days). Following the weight reduction phase the participants attended a six month follow-up period (167 ± 37 days). By protocol design, subjects were eligible to enter the study if they had lost at least 10% of their initial body weight during the LCD-period and maintained this weight (+5%) after group therapy. Subcutaneous adipose tissue samples were obtained at three time-points: (i) at baseline, (ii) after weight reduction when subjects were no longer losing weight, and (iii) after the group therapy weight maintenance phase.
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Project description:The present study was designed to identify determinants that foreshadow successful weight maintenance. More specifically, we examined whether subcutaneous adipose tissue (scAT) gene expression of participants who experience successful weight maintenance following caloric restriction differed from that of participants who regain weight. Forty women followed a dietary protocol consisting of an 8-week low calorie diet (LCD) and a 6-month weight maintenance phase. At the end of the protocol, participants were classified as weight maintainers (WM; 0-10% weight regain) and weight regainers (WR; 50-100% weight regain). Anthropometric measurements, plasma parameters, and scAT biopsies were taken before and after the LCD. Adipose tissue gene expression profiles were studied in all individuals before and after the LCD.
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Project description:The present study was designed to identify determinants that foreshadow successful weight maintenance. More specifically, we examined whether subcutaneous adipose tissue (scAT) gene expression of participants who experience successful weight maintenance following caloric restriction differed from that of participants who regain weight.
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Project description:Obesity is associated with insulin resistance and increased intrahepatic triglyceride (IHTG) content, which are key risk factors for diabetes and cardiovascular disease. However, a subset of obese people does not develop these metabolic complications. We tested the hypothesis that MNO, but not MAO, people are protected from the adverse metabolic effects of weight gain. To this end, global transcriptional profile in adipose tissue before and after weight gain was evaluated by microarray analyses. We collected subcutaneous adipose tissue samples from MNO (n=11) and MAO (n=7) subjects before and after moderate (~6%) weight gain (total 36 samples). We evaluated the effects of weight gain on adipose tissue gene expression in both MNO and MNO subjects.We used the GeneChip Human Gene 1.0 ST array (Affymetrix, Santa Clara, CA, USA).
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