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Regular exercise potentiates energetically expensive hepatic de novo lipogenesis during early weight regain

ABSTRACT: Regular exercise potentiates energetically expensive hepatic de novo lipogenesis during early weight regain

PROVIDER: PRJNA559750 | ENA |

REPOSITORIES: ENA

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Regular exercise potentiates energetically expensive hepatic de novo lipogenesis during early weight regain

Project description:Obese rats were calorically restricted with (EX) or without (SED) treadmill exercise (1 h/day, 6 days/wk, 15 m/min) to induce and maintain weight loss. After 6 weeks of WLM, subsets of WLM-SED and WLM-EX rats were allowed ad libitum access to food for 1 day to promote relapse (REL). An energy gap-matched group of sedentary, relapsing rats (REL-GM) were provided a diet matched to the positive energy imbalance of the REL-EX rats.

2019-12-10 | GSE135700 | GEO

Regular exercise potentiates energetically expensive hepatic de novo lipogenesis during early weight regain.

Project description: Not available

| S-EPMC6879845 | biostudies-literature

Subcutaneous adipose tissue: comparison of weight maintainence and weight regain following an 8-week low calorie diet

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.

2011-09-29 | E-GEOD-24432 | biostudies-arrayexpress

Lipoprotein Lipase Overexpression in Skeletal Muscle Attenuates Weight Regain by Potentiating Energy Expenditure

Project description:We investigated the effect of weight loss maintenance (WLM) and weight regain on skeletal muscle in rodents. In skeletal muscle of obesity prone rats, WLM reduced fat oxidative capacity and down-regulated genes involved in fat metabolism. After weight was regained in rats, the genes involved in fat metabolism were still reduced. Mice with skeletal muscle lipoprotein lipase overexpression (mCK-hLPL), which augments fat metabolism, were subjected to our WLM and weight regain paradigm. We found that mCK-hLPL attenuated weight regain by potentiating energy expenditure.Irrespective of genotype, weight regain suppressed dietary fat oxidation and down-regulated genes involved in fat metabolism in skeletal muscle. However, mCK-hLPL mice oxidized more fat throughout weight regain and had greater expression of genes involved in fat metabolism and lower expression of genes involved in carbohydrate metabolism during WLM and regain.

2021-03-24 | GSE154943 | GEO

Multiomics reveals persistence of obesity-associated immune cell phenotypes in adipose tissue during weight loss and subsequent weight regain

Project description:Most individuals do not maintain weight loss, and weight regain increases cardio-metabolic risk beyond that of obesity. Adipose inflammation directly contributes to insulin resistance; however, immune-related changes that occur with weight loss and weight regain are not well understood. Single cell RNA-sequencing was completed with CITE-sequencing and biological replicates to profile changes in murine immune subpopulations following obesity, weight loss, and weight cycling. Weight loss normalized glucose tolerance, however, type 2 immune cells did not repopulate adipose following weight loss. Many inflammatory populations persisted with weight loss and increased further following weight regain. Obesity drove T cell exhaustion and broad increases in antigen presentation, lipid handing, and inflammation that persisted with weight loss and weight cycling. This work provides critical groundwork for understanding the immunological causes of weight cycling-accelerated metabolic disease.

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Subcutaneous adipose tissue: comparison of weight maintainence and weight regain following an 8-week low calorie diet

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Short-term caloric restriction promotes resolution, while weight regain accelerates atherosclerosis in mice

Project description:While weight loss is highly recommended for obesity, promoting inflammation resolution, >80% of those who lose weight will regain it back, resulting in worsening of disease outcomes (including cardiovascular disease), relative to never having lost weight. However, how weight loss and regain directly influence atherosclerotic inflammation was unknown and investigated in this stud. Using short-term caloric restriction (stCR) in obese mice, we found that weight loss promotes atherosclerosis resolution, independently of plasma cholesterol. Mechanistically, we found that this is partly attributed to a unique subset of macrophage, distinguished by high expression of the antibody receptor Fcgr4, that accumulated in epididymal adipose tissue and plaques with stCR and help to clear necrotic cores. Interestingly, our data suggest that eWAT-derived Fcgr4 macrophages contribute to the clearance of plaque necrotic cores. On the other hand, weight regain achieved by ab libitum feeding following the stCR phase resulted in acceleration of atherosclerosis progression and disappearance of Fcgr4 macrophages from both adipose and plaques. Furthermore, weight regain caused inflammatory reprogramming of bone marrow immune progenitors, retaining hyper-inflammatory capabilities for long periods thereafter.

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Exercise training markedly augments dietary weight loss-induced improvements in multi-organ system metabolic function in people with obesity and prediabetes

Project description:The additional therapeutic effects of regular exercise during a dietary weight loss program in people with obesity and prediabetes are unclear. We evaluated the effect of 10% weight loss, induced within ~5 months by calorie-restriction alone (Diet-ONLY, n=8) or calorie-restriction plus multi-modal exercise training (Diet+EX, n=8), on metabolic function in people with obesity and prediabetes. Whole-body (primarily muscle) and hepatic insulin sensitivity were 2-3 fold greater in the Diet+EX than the Diet-ONLY group, and were accompanied by increased muscle expression of genes involved in mitochondrial biogenesis, energy metabolism and angiogenesis in the Diet+EX group without any change in the Diet-ONLY group. There were no differences between groups in plasma branched-chain amino acids or markers of inflammation, and both interventions caused similar changes in the gut microbiome. These results demonstrate that adding regular exercise to a diet-induced weight loss program has profound metabolic benefits in people with obesity and prediabetes.

2023-04-26 | GSE230002 | GEO

Microarray analysis of gene expression profile of the inguinal fat in C57BL/6J mice after weight regain

Project description:To search for genes and pathways that are involved in obesity memory, we harvested the inguinal fat after weight regain and performed gene expression profiling using mouse gene expression microarrays.

2016-06-06 | GSE76944 | GEO

Multiomics reveals persistence of obesity-associated immune cell phenotypes in adipose tissue during weight loss and subsequent weight regain

Project description:Multiomics reveals persistence of obesity-associated immune cell phenotypes in adipose tissue during weight loss and subsequent weight regain

| PRJNA755344 | ENA

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