E-GEOD-8668
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: PRJNA101877
PROVIDER: E-GEOD-8668 | ExpressionAtlas | 2025-01-24
REPOSITORIES: ExpressionAtlas
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| E-GEOD-8668-analysis-methods.tsv | Tabular | |||
| E-GEOD-8668-atlasExperimentSummary.Rdata | Rdata | |||
| E-GEOD-8668-configuration.xml | Xml | |||
| E-GEOD-8668-percentile-ranks.tsv | Tabular | |||
| E-GEOD-8668.condensed-sdrf.tsv | Tabular |
Items per page: 5 1 - 5 of 44 |
Similar Datasets
Project description:Exercise leads to a rapid change in the profile of gene expression in circulating neutrophils. We hypothesized that miRNA expression in circulating neutrophils would also be affected by brief exercise. Eleven healthy men (19-30 yr old) performed 10 2-min bouts of cycle ergometer exercise interspersed with 1-min rest at a constant work equivalent to about 76% of VO2max. A baseline blood sample was taken before the and immediately after the exercise. Neutrophils were isolated using OptiPrep Density Gradient Medium (SIGMA). Total RNA was extracted using TRIzolM-BM-.. For this study we used Agilent Human miRNA microarrays V2 (total of 22 chips).
2010-03-31 | E-GEOD-18999 | biostudies-arrayexpress
Project description:Exercise leads to a rapid change in the profile of gene expression in circulating PBMCs. We hypothesized that miRNA expression in circulating PBMCs would also be affected by brief exercise. 12 healthy men (19-30 yr old) performed 10 2-min bouts of cycle ergometer exercise interspersed with 1-min rest at a constant work equivalent to about 76% of VO2max. A baseline blood sample was taken before and immediately after the exercise. Neutrophils were isolated using OptiPrep Density Gradient Medium (SIGMA). Total RNA was extracted using TRIzol®. For this study we used Agilent Human miRNA microarrays V2 (total of 24 chips).
2011-09-25 | E-GEOD-28745 | biostudies-arrayexpress
Project description:Relatively brief bouts of exercise alter gene expression in peripheral blood mononuclear cells (PBMCs), but whether or not exercise changes gene expression in circulating neutrophils (whose numbers, like PBMCs, increase) is not known. We hypothesized that exercise would activate neutrophil genes involved in apoptosis, inflammation, and cell growth and repair, since these functions in leukocytes are known to be influenced by exercise. Blood was sampled before and immediately after 30-min of constant, heavy (about 80% peak O2 uptake) cycle-ergometer exercise in 12 healthy men (19-29 yr old) of average fitness. Neutrophils were isolated using density gradients; RNA was hybridized to Affymetrix U133+2 Genechip arrays. Using FDR<0.05 with 95% confidence a total of 526 genes were differentially expressed between before and after exercise. 316 genes had higher expression after exercise. The Jak/STAT pathway, known to inhibit apoptosis, was significantly activated (EASE score, p<0.005), but 14 genes were altered in a way likely to accelerate apoptosis as well. Similarly, both proinflammatory (e.g., IL32, TNFSF8 and CCR5) and anti-inflammatory (e.g., ANXA1) were affected. Growth and repair genes like AREG and FGF2 receptor genes (involved in angiogenesis) were also activated. Finally, a number of neutrophil genes known to be involved in pathological conditions like asthma and arthritis were altered by exercise, suggesting novel links between physical activity and disease or its prevention. In summary, brief heavy exercise leads to a previously unknown substantial and significant alteration in neutrophil gene expression. Experiment Overall Design: Twelve healthy men (19-29 yr old) participated in this study. A baseline blood sample was taken before the onset of exercise and immediately after 30-min exercise bout. Neutrophils were isolated using OptiPrep Density Gradient Medium (SIGMA). Total RNA was extracted using TRIzol. cRNA was hybridized onto Affymetrix U133+2 arrays (total of 24 chips).
2008-06-16 | E-GEOD-8668 | biostudies-arrayexpress
Project description:Exercise leads to a rapid change in the profile of gene expression in circulating neutrophils. We hypothesized that miRNA expression in circulating neutrophils would also be affected by brief exercise.
2010-03-31 | GSE18999 | GEO
Project description:Relatively brief bouts of exercise alter gene expression in peripheral blood mononuclear cells (PBMCs), but whether or not exercise changes gene expression in circulating neutrophils (whose numbers, like PBMCs, increase) is not known. We hypothesized that exercise would activate neutrophil genes involved in apoptosis, inflammation, and cell growth and repair, since these functions in leukocytes are known to be influenced by exercise. Blood was sampled before and immediately after 30-min of constant, heavy (about 80% peak O2 uptake) cycle-ergometer exercise in 12 healthy men (19-29 yr old) of average fitness. Neutrophils were isolated using density gradients; RNA was hybridized to Affymetrix U133+2 Genechip arrays. Using FDR<0.05 with 95% confidence a total of 526 genes were differentially expressed between before and after exercise. 316 genes had higher expression after exercise. The Jak/STAT pathway, known to inhibit apoptosis, was significantly activated (EASE score, p<0.005), but 14 genes were altered in a way likely to accelerate apoptosis as well. Similarly, both proinflammatory (e.g., IL32, TNFSF8 and CCR5) and anti-inflammatory (e.g., ANXA1) were affected. Growth and repair genes like AREG and FGF2 receptor genes (involved in angiogenesis) were also activated. Finally, a number of neutrophil genes known to be involved in pathological conditions like asthma and arthritis were altered by exercise, suggesting novel links between physical activity and disease or its prevention. In summary, brief heavy exercise leads to a previously unknown substantial and significant alteration in neutrophil gene expression. Keywords: stress response
2007-11-19 | GSE8668 | GEO
Project description:Effects of exercise on gene expression in human neutrophils
| PRJNA101877 | ENA
Project description:Analysis of the changes in the transcriptome of circulating neutrophils and skeletal muscle from standardized resting conditions (baseline; pre-EXTRI) to 3, 48 and 96 hours after an experimental exercise trial (EXTRI; 1 hour of cycling followed by 1 hours of running) in 8 healthy, endurance-trained, male subjects. It was hypothesized that the time-course dependent transcriptomic changes would reflect the molecular and signalling mechanisms by which neutrophils regulate and counter-regulate inflammation, and by which skeletal muscle responds, regenerates, and phenotypically adapts to intense, prolonged exercise involving muscle damage. Results provide an important insight in the signalling pathways underlying the transcriptional activation and priming of circulatory neutrophils in response to physiological stress, in particular muscle-derived damage-associated molecular patterns. Furthermore, the study provides novel data on the skeletal muscle transcriptome beyond 48 hours after strenuous endurance exercise, and indicates important muscular remodelling processes at 96 hours post-EXTRI. Blood and muscle samples were taken under standardized conditions at baseline (pre-EXTRI), and 3, 48 and 96 hours post-EXTRI. Total mRNA was extracted from isolated neutrophils, and from skeletal muscle tissue.
2013-01-30 | E-GEOD-43856 | biostudies-arrayexpress
Project description:Strenuous physical exercise causes a massive elevation in the concentration of circulating cell-free DNA (cfDNA), which correlates with effort intensity and duration. The cellular sources and physiological drivers of this phenomenon are unknown. Using methylation patterns of cfDNA and associated histones, we show that cfDNA in exercise originates mostly in extramedullary polymorphonuclear neutrophils. Strikingly, the concentration of cardiomyocyte cfDNA increases after a marathon, consistent with elevated troponin levels and indicating low-level, delayed cardiac cell death. Physical impact, low oxygen levels and elevated core body temperature contribute to the release of neutrophil cfDNA, while muscle contraction, increased heart rate, beta-adrenergic signaling or steroid treatment fail to cause elevation of cfDNA. Physical training reduces the release of neutrophil cfDNA after a standard exercise, revealing an inverse relationship between exercise-induced cfDNA release and training level. We speculate that the release of cfDNA from neutrophils in exercise relates to the activation of neutrophils in the context of exercise-induced muscle damage.
| EGAS00001007157 | EGA
Project description:Effects of exercise on miRNA expression level in human neutrophils
| PRJNA120429 | ENA
Project description:The methylome and transcriptome signatures following exercise that are physiologically and metabolically relevant to sporting contexts such as team sports or health prescription scenarios (e.g. high intensity interval training/HIIT) has not been investigated. To explore this, we performed two different sport/exercise relevant high-intensity running protocols in 5 male sport team members using a repeated measures design of: 1) Change of direction (COD) versus; 2) straight line (ST) exercise with a wash-out period of at least 2 weeks between trials. Skeletal muscle biopsies collected from the vastus lateralis 30 minutes and 24 hours post exercise, were assayed using 850K methylation arrays and a comparative analysis with recent (subject-unmatched) sprint and acute aerobic exercise meta-analysis transcriptomes was performed. Despite COD and ST exercise being matched for classically defined intensity measures (speed x distance and number of accelerations/decelerations), COD exercise elicited greater movement (GPS-Playerload), physiological (HR), metabolic (lactate) as well as central and peripheral (differential RPE) measures compared with ST exercise, suggesting COD exercise evoked a higher exercise intensity. The exercise response alone across both conditions evoked extensive alterations in the methylome 30 mins and 24 hrs post exercise, particularly in MAPK, AMPK and axon guidance pathways. COD evoked a considerably greater hypomethylated signature across the genome compared with ST exercise, particularly at 30 minutes post exercise, enriched in: Protein binding, MAPK, AMPK, insulin, and axon guidance pathways. Comparative methylome analysis with sprint running transcriptomes identified considerable overlap, with 49% of genes that were altered at the expression level also differentially methylated after COD exercise. After differential methylated region analysis, we observed that VEGFA and its downstream nuclear transcription factor, NR4A1 had enriched hypomethylation within their promoter regions. VEGFA and NR4A1 were also significantly upregulated in the sprint transcriptome and meta-analysis of exercise transcriptomes. We confirmed increased gene expression of VEGFA, and considerably larger increases in the expression of canonical metabolic genes, PPARGC1A (that encodes PGC1-α) and NR4A3 in COD vs. ST exercise. Overall, we demonstrate that increased physiological/metabolic load via change of direction exercise in human skeletal muscle evokes considerable epigenetic modifications that are associated with changes in expression of genes responsible for adaptation to exercise.
2021-01-21 | GSE162288 | GEO