Equine skeletal muscle transcriptomics
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB35187 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Unconditioned thoroughbred geldings were exercised to maximal heart rate or fatigue on an equine high-speed treadmill. Skeletal muscle biopsies were taken from the middle gluteal muscle before, immediately after and four hours after exercise. Three-condition experiment, Pre exercise (T0), Immediately post exercise (T1), 4 hours post exercise (T2). Hybridisations: T0 vs T1, T0 vs T2 Biological replicates: 8 Technical replication Dye swap
2010-06-21 | E-GEOD-16235 | biostudies-arrayexpress
Project description:Unconditioned thoroughbred geldings were exercised to maximal heart rate or fatigue on an equine high-speed treadmill. Skeletal muscle biopsies were taken from the middle gluteal muscle before, immediately after and four hours after exercise.
2009-10-14 | GSE16235 | GEO
Project description:Digital gene expression profiling was used to characterize the assembly of genes expressed in equine skeletal muscle and to identify the subset of genes that were differentially expressed following a ten month period of exercise training. The study cohort comprised 7 thoroughbred racehorses from a single training yard. Skeletal muscle biopsies were collected at rest from the gluteus medius at two time points: T1 (unconditioned), (9 +/- 0.5 months old) and T2 (conditioned) (20 +/- 0.7 months old). The most highly abundant genes in the muscle transcriptome were those involved in muscle contraction, aerobic respiration and mitochondrial function. A previously unreported over-representation of genes relating to RNA processing, the stress response and proteolysis was observed. Following training 92 tags were differentially expressed of which 74 were annotated. Sixteen genes showed increased expression, including the mitochondrial genes, ACADVL, MRPS21 and SLC25A29. Among the 58 genes with deceased expression MSTN, a negative regulator of muscle growth had the greatest decrease. Functional analysis of all expressed genes using FatiScan revealed an asymmetric distribution of 482 Gene Ontology groups and 18 KEGG pathways. Functional groups with highly significantly (P < 0.0001) increased expression included mitochondrion, oxidative phosphorylation and fatty acid metabolism while functional groups with decreased expression were mainly associated with structural genes and included the sarcoplasm, laminin complex and cytoskeleton. Examination of muscle expression changes in 7 thoroughbred horses following 10 months of exercise training using digital gene expression with NlaIII.
2010-04-09 | E-GEOD-21269 | biostudies-arrayexpress
Project description:The participants performed 8 weeks of superised aerobic endurance exercise. Skeletal muscle biopsise were taken at rest before and after intervention and matched analysis was performed.
2024-04-24 | GSE244359 | GEO
Project description:Digital gene expression profiling was used to characterize the assembly of genes expressed in equine skeletal muscle and to identify the subset of genes that were differentially expressed following a ten month period of exercise training. The study cohort comprised 7 thoroughbred racehorses from a single training yard. Skeletal muscle biopsies were collected at rest from the gluteus medius at two time points: T1 (unconditioned), (9 +/- 0.5 months old) and T2 (conditioned) (20 +/- 0.7 months old). The most highly abundant genes in the muscle transcriptome were those involved in muscle contraction, aerobic respiration and mitochondrial function. A previously unreported over-representation of genes relating to RNA processing, the stress response and proteolysis was observed. Following training 92 tags were differentially expressed of which 74 were annotated. Sixteen genes showed increased expression, including the mitochondrial genes, ACADVL, MRPS21 and SLC25A29. Among the 58 genes with deceased expression MSTN, a negative regulator of muscle growth had the greatest decrease. Functional analysis of all expressed genes using FatiScan revealed an asymmetric distribution of 482 Gene Ontology groups and 18 KEGG pathways. Functional groups with highly significantly (P < 0.0001) increased expression included mitochondrion, oxidative phosphorylation and fatty acid metabolism while functional groups with decreased expression were mainly associated with structural genes and included the sarcoplasm, laminin complex and cytoskeleton.
2010-04-09 | GSE21269 | GEO
Project description:Myofibrillar myopathy (MFM) in horses is a late onset disease that affects performance and athleticism. It is characterized by myofibrillar disarray and protein aggregation with no known cause. The objective of this study was to elucidate the molecular drivers of MFM in Warmblood (WB) horses by proteomic profiling (5 MFM WB, 4 non-MFM WB) of gluteal muscle. MFM horses used in this study had a chronic history of poor performance and exercise intolerance as well as accumulation of desmin aggregates in > 4 myofibers per muscle sample. The Equine Neuromuscular Diagnostic Laboratory database at Michigan State University was queried to identify WB horses with snap frozen gluteus medius biopsies available for analysis. Non-MFM control horses were defined as horses with no history of exercise intolerance and no evidence of desmin accumulation or other histopathology in muscle biopsies. Muscle biopsy samples were obtained at rest from horses that had not undertaken strenuous exercise in the preceding 48 hours.
2021-09-09 | PXD019187 | Pride
Project description:Exercise is an important strategy in the prevention and treatment of metabolic diseases, like diabetes and obesity. Alterations in the skeletal muscle proteome, including post-translational modifications, especially acetylation, regulate its metabolic adaptations to exercise. Here, we examined the effect of 6-week aerobic exercise and Scriptaid, a HDAC4/5 inhibitor, on the proteome and acetylome of skeletal muscle in mice. We find Scriptaid and exercise both induce acetylation modification changes of some proteins involved in metabolism, suggest that exercise improves metabolic health by regulating protein acetylation level.
2022-04-06 | PXD032660 |
Project description:To investigate microRNAs related to mitochondria biogenesis in skeletal muscle, microRNA expressions during skeletal muscle differentiation and exercise were analyzed in vivo and in vitro. Murine skeletal muscle cell (C2C12) were assigned to undifferentiated, differentiated, and passively stretched (exercise mimicked). C57BL/6S mice were assigned to resting, acute exercise (1day), and chronic exercise (7days). Low molecular weight RNA (< 200 nucleotides) was isolated from C2C12 cell or tibialis anterior muscle of mice and hybridized to Ncode microRNA microarrays. The experiment was performed using a loop design for the data analysis.
2011-05-14 | E-GEOD-29286 | biostudies-arrayexpress
Project description:We aimed to investigate the human skeletal muscle (SkM) DNA methylome after exercise in low carbohydrate (CHO) energy balance (with high fat) compared with exercise in low-CHO energy deficit (with low fat) conditions. The objective to identify novel epigenetically regulated genes and pathways associated with ‘train-low sleep-low’ paradigms. The sleep-low conditions included 9 males that cycled to deplete muscle glycogen while reaching a set energy expenditure. Post-exercise, low-CHO meals (protein-matched) completely replaced (using high-fat) or only partially replaced (low-fat) the energy expended. The following morning resting baseline biopsies were taken and the participants then undertook 75 minutes of cycling exercise, with skeletal muscle biopsies collected 30 minutes and 3.5 hours post exercise. Discovery of genome-wide DNA methylation was undertaken using Illumina EPIC arrays and targeted gene expression analysis was conducted by RT-qPCR. At baseline participants under energy balance (high fat) demonstrated a predominantly hypermethylated (60%) profile across the genome compared to energy deficit-low fat conditions. However, post exercise performed in energy balance (with high fat) elicited a more prominent hypomethylation signature 30 minutes post-exercise in gene regulatory regions important for transcription (CpG islands within promoter regions) compared with exercise in energy deficit (with low fat) conditions. Such hypomethylation was enriched within pathways related to: IL6-JAK-STAT signalling, metabolic processes, p53 / cell cycle and oxidative / fatty acid metabolism. Hypomethylation within the promoter regions of genes: HDAC2, MECR, IGF2 and c13orf16 were associated with significant increases in gene expression in the post-exercise period in energy balance compared with energy deficit. Furthermore, histone deacetylase, HDAC11 was oppositely regulated at the gene expression level compared with HDAC2, where HDAC11 was hypomethylated yet increased in energy deficit compared with energy balance conditions. Overall, we identify some novel epigenetically regulated genes associated with train-low sleep-low paradigms.
2023-03-29 | GSE223786 | GEO
Project description:Skeletal Muscle Transcriptomics
| PRJNA532382 | ENA