Obesity Weight Loss Study
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE106289 | GEO | 2017/10/28
SECONDARY ACCESSION(S): PRJNA416131
REPOSITORIES: GEO
Similar Datasets
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.
2012-01-31 | E-GEOD-35411 | biostudies-arrayexpress
Project description:The purpose of this study was to evaluate the effect of progressive weight loss (5, 10, 15% weight loss) on metabolic function such as multi-organ insulin sensitivity and beta-cell function in obese people. We conducted microarray analysis to determine the effect of progressive weight loss on adipose tissue gene expression profile. We examined subcuntaneous adipose tissue samples obtained from 9 obese subjects before (A) and after 5% (B), 10% (C) and 15% (D) weight loss (total 36 samples).
2016-02-26 | E-GEOD-70529 | biostudies-arrayexpress
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.
2012-01-31 | GSE35411 | GEO
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.
2019-08-02 | GSE135239 | GEO
Project description:Lipedema is a lipodystrophic disease characterized by marked increases in lower-body subcutaneous adipose tissue, anecdotally reported to: i) increase inflammation and fibrosis and impair microvascular and lymphatic circulation in the affected adipose tissue, ii) reduce risk of developing obesity-related cardiometabolic abnormalities; and iii) be resistant to diet-induced weight loss. To further our understanding of lipedema, we examined body composition, metabolic health and adipose tissue bology in women with obesity and lipedema (Obese-LIP) at baseline and following ~9% diet-induced weight loss. At baseline, people with Obese-LIP had ~23% greater leg fat mass, ~11% lower android-to-gynoid ratio and ~54% greater insulin sensitivity compared to women matched on age, body mass index and whole-body fat mass. In the Obese-LIP group, total and proinflammatory macrophage content and expression of inflammation and fibrosis-related genes were greater while lymph/angiogenesis-related genes were lower in subcutaneous femoral compared to abdominal adipose tissue. Diet-induced weight loss improved insulin sensitivity and decreased total fat mass due to similar reductions in abdominal and leg fat masses, with minimal effect on markers of adipose tissue inflammation/fibrosis and lymph/angiogenesis. Our study provides important insights into the pathophysiology of lipedema and suggests diet-induced weight loss should be the cornerstone therapy in people with Obese-LIP.
2024-10-15 | GSE274137 | GEO
Project description:The hypothesis tested in the present study was The effect fo weight loss by dietary intervention with very low calorie diet on colorectal inflammatory genes and genepathways. The study results have shown that a 10% weight loss in obese women down-regulated inflammatory and cancer gene pathways. In addition there was downregulation of transcription factors known to play an important role in colorectal cancer. Total RNA obtained from colorectal mucosal biopsy samples
2010-12-30 | E-GEOD-20931 | biostudies-arrayexpress
Project description:We investigated the regulation of adipose tissue (AT) gene expression during different phases of a dietary weight loss program and its relationship with insulin sensitivity. Obese women followed a weight reduction program composed of an energy restriction phase (ER) with a 4-week very-low-calorie diet and a weight stabilization period (WS) composed of a 2-month low-calorie diet followed by 3 to 4 months of a weight maintenance diet. At each time point, body composition, plasma parameters and glucose disposal rate were assessed and subcutaneous AT biopsies were performed. Variations in mRNA levels were determined using DNA microarrays and reverse transcription-quantitative PCR. Distinct sets of AT genes are regulated during calorie restriction and weight stabilization revealing an unexpected temporal pattern in the link between AT and insulin sensitivity during weight loss.
2009-05-12 | GSE11975 | GEO
Project description:The hypothesis tested in the present study was The effect fo weight loss by dietary intervention with very low calorie diet on colorectal inflammatory genes and genepathways. The study results have shown that a 10% weight loss in obese women down-regulated inflammatory and cancer gene pathways. In addition there was downregulation of transcription factors known to play an important role in colorectal cancer.
2010-12-30 | GSE20931 | GEO
Project description:Adipose tissue retains an epigenetic memory of obesity after weight loss
| PRJNA991586 | ENA