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Regular physical activity followed by detraining increases the sensitivity of global gene expression to acute exercise stress

ABSTRACT: To determine the influence of a previous physcial activity period (e.g., exercise) on global gene expression, we compared differential expression in sedentary (SED) and detrained (DETR) rats relative to trained (TR) rats with regular access to physcial activity.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE79894 | GEO | 2016/04/05

SECONDARY ACCESSION(S): PRJNA317335

REPOSITORIES: GEO

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Regular physical activity followed by detraining increases the sensitivity of global gene expression to acute exercise stress

Project description:To determine the influence of a previous physcial activity period (e.g., exercise) on global gene expression, we compared differential expression in sedentary (SED) and detrained (DETR) rats relative to trained (TR) rats with regular access to physcial activity. TR and DETR rats had voluntary access to caged running wheels for 8 and 4 weeks, respectively. DETR rats were moved to sedentary conditions (normal cage activity) for another 4 weeks. SED rats experienced 8 weeks of normal caged activity; n=8 per group. At the end of each group's respective 8 weeks, all rats underwent 1 hr of moderate of acute exercise stress (e.g., forced wheel running at a speed of 20 m/min). Soleus muscles were harvested 24h post-running.

2016-04-05 | E-GEOD-79894 | biostudies-arrayexpress

Gene expression data from 16-month and 3-month old male rats, with three different levels of activity over the life span: sedentary, twice weekly physical activity, regular running wheel exercise.

Project description:Gene expression data at rest and immediately post 30 min submaximal exercise in 3 month and 16 month old male rats, some of which were sedentary (SED), had access to a physical activity box twice weekly (PA) and some of which had daily access to a running wheel (EX). We used microarrays to detail global gene expression underlying select health-related phenotypes and identified differentially expressed genes among the three groups. Young (3 month) and old (16 month) male rats were separated into three different groups: Sedentary (SED), twice-weekly physical activity (PA), and regular exercise (EX). Animals were sacrificed either at rest or after 30 min of sub maximal exercise. Then, a portion of cardiac tissue was collected for RNA extraction and hybridization on Affymetrix microarrays.

2013-10-18 | E-GEOD-51380 | biostudies-arrayexpress

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

Epigenetic patterns with aging and exercise are associated with indicators of healthspan in humans

Project description:Genome wise DNA methylation profiling of peripheral blood mononuclear cells (PBMCs) obtained from younger sedentary (Y-SED), older sedentary (O-SED) and older aerobically exercise trained (O-Ex) human subjects. The Illumina 450K methylation beadchip array was used to obtain DNA methylation profiles across approximately 450,000 CpG dinucleotide methylation loci in DNA isolated from PBMCs. Samples include 12 Y-SED subjects, 15 O-SED subjects and 11 O-Ex subjects.

2020-10-01 | GSE85311 | GEO

Gene expression data from 16-month and 3-month old male rats, with three different levels of activity over the life span: sedentary, twice weekly physical activity, regular running wheel exercise.

2013-10-18 | GSE51380 | GEO

Physical activity regulates the immune response to breast cancer by a hematopoietic stem cell-autonomous mechanism

Project description:To investigate the role of physical activity in the regulation of tumor incidence, we performed differential gene expression analysis on tumors from sedentary (SED) and phsyically active (PA) mice at an early (week12) and late (week18) stage of tumor development. We also performed differential gene expression analysis on hematopoietic stem cells (HSCs) from SED and PA mice, as well as from SED mice transplanted with PA HSCs.

2023-09-30 | GSE229575 | GEO

Genome-wide changes in DNA methylation in response to physical exercise

Project description:Here we describe a genome-wide analysis of DNA-methylation in muscle of trained mice. In comparison to sedentary controls 2762 genes exhibited differentially methylated CpGs in their putative promoter regions. The majority of these genes were related to muscle growth and differentiation and a minor fraction involved in metabolic regulation. These findings suggest that DNA-methylation is involved in the regulation of muscle adaptation to regular exercise training. Reduced representation bisulfite sequencing of murine quadriceps muscle

2015-02-01 | E-GEOD-54277 | biostudies-arrayexpress

Genome-wide changes in DNA methylation in response to physical exercise

2015-02-01 | GSE54277 | GEO

Myocardial proteome changes in aortic stenosis rats subjected to long-term aerobic exercise

Project description:The effects of exercise training (ET) on the heart of aortic stenosis (AS) rats are controversial and the mechanisms involved in alterations induced by ET have been poorly clarified. In this study we analyzed the myocardial proteome to identify proteins modulated by moderate intensity aerobic ET in rats with chronic supravalvar AS. Wistar rats were divided into four groups: sedentary control (C-Sed), exercised control (C-Ex), sedentary aortic stenosis (AS-Sed), and exercised AS (AS-Ex). ET consisted of five treadmill running sessions per week for 16 weeks. Statistical analysis was performed by ANOVA or Kruskal-Wallis and Goodman tests. Results were discussed at a significance level of 5%. At the end of the experiment, AS-Ex rats had higher functional capacity, lower blood lactate concentration, and better cardiac structural and left ventricular functional parameters than the AS-Sed. Myocardial proteome analysis showed that AS-Sed had higher protein expressions related to the glycolytic pathway, oxidative stress, and inflammation, and lower protein expressions related to beta-oxidation than C-Sed. AS-Ex had higher expression of one protein related to mitochondrial biogenesis and lower protein expressions associated with oxidative stress and inflammation than AS-Sed. Proteomic data were validated for proteins related to lipid and glycolytic metabolism. In conclusion, chronic pressure overload changes the expression of myocardial proteins that are mainly involved in lipid and glycolytic energy metabolism in rats. Moderate intensity aerobic training attenuates protein expressions related to oxidative stress and inflammation and increases protein expressions related to mitochondrial biogenesis. Protein changes are associated with improved functional capacity, cardiac remodeling and left ventricular function in aortic stenosis rats.

2024-02-29 | PXD040785 | Pride

Exosomal miRNA profile of physical activity as preventive lifestyle intervention

Project description:Emerging evidence suggests that circulating exosomes mediate some of the beneficial effects of exercise via the transfer of microRNAs between tissues. However, the impact of short-term (0.5 year in this study) and long-term (25+ years in this study) regular bouts of exercise on circulating exosomal microRNAs (exomiRs) remains unknown. Our aim was to elucidate the prevention pattern of exomiRs and their targeted pathways. Therefore, in the present study we analyzed serum exomiR expression in healthy young, sedentary participants (n=14) at baseline and following a half year-long moderate-intensity regular exercise training. We also analyzed serum exomiR expression in older, healthy trained participants (seniors, n=11) who engaged in endurance activities for at least 25 years. Following the isolation and enrichment of serum exosomes their exomiR levels were determined using the amplification-free Nanostring platform.

2021-02-23 | E-MTAB-10067 | biostudies-arrayexpress

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