Identifying target genes involved in subclinical respiratory disease that develop in athletes: an insight from the horse athlete and the use of microarrays
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ABSTRACT:
ORGANISM(S): Equus caballus
PROVIDER: GSE22843 | GEO | 2014/07/01
SECONDARY ACCESSION(S): PRJNA128049
REPOSITORIES: GEO
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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
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2018-11-01 | GSE88853 | GEO
Project description:Skeletal muscle adapts to exercise training of various modes, intensities and durations with a programmed gene expression response. This study dissects the independent and combined effects of exercise mode, intensity and duration to identify which exercise has the most positive effects on skeletal muscle health. Full details on exercise groups can be found in: Kraus et al Med Sci Sports Exerc. 2001 Oct;33(10):1774-84 and Bateman et al Am J Cardiol. 2011 Sep 15;108(6):838-44.
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2022-07-22 | GSE209550 | GEO
Project description:Skeletal muscle adapts to exercise training of various modes, intensities and durations with a programmed gene expression response. This study dissects the independent and combined effects of exercise mode, intensity and duration to identify which exercise has the most positive effects on skeletal muscle health. Full details on exercise groups can be found in: Kraus et al Med Sci Sports Exerc. 2001 Oct;33(10):1774-84 and Bateman et al Am J Cardiol. 2011 Sep 15;108(6):838-44. This study uses a middle aged group of subjects that have 3+ markers of metabolic syndrome. One group remains an inactive control, while 5 groups undergo 9 mo supervised exercise training. Exercise groups are as follows: Inactive control (group B); Mild aerobic exercise - low amount/mod intensity (group A); Moderate aerobic exercise - low amt/vig intensity (group D); High aerobic exercise - high amt/vig intensity (group C); resistance training only (group F); and mod aerobic + resistance training (group E). Each group has 10 subjects (5 men and 5 women), however 3 subjects failed array QC, leaving 8 subjects in group E and 9 subjects in group F. Data were all analyzed pre to post training in a RM ANCOVA, covaried for age and sex or regression to determine genotype/phenotype interactions.
2015-05-14 | E-GEOD-48278 | biostudies-arrayexpress
Project description:The importance of alveolar type II epithelial cells (AEC II) in all aspects of the induction and regulation of respiratory immune responses has become increasing appreciated. We determined the genome-wide profile of gene expression in response to immune mediated airway inflammation. Overall, our results provide detailed description of specific AEC II gene expression under disease conditions. Differentially expressed genes of diverse molecular functions have been identified that may be critical for numerous physiologic activities, some of which may be currently unappreciated. Data obtained by such analysis will help to understand the function of these important immune cells in the respiratory system and may point out strategies for intervention in the progression of inflammatory diseases. We used microarrays to detail changes in the gene expression profile in alveolar type II epithelial cells during interstitial airway inflammation and identified a wide variety of differentially expressed genes during this process. Experiment Overall Design: Alveolar type II epithelial cells from the lung of healthy SPC-HA and diseased SPC-HAxTCR-HA mice were isolated by enzymatic tissue desintegration followed by one step negative selection using a MoFlow cell sorter. RNA was extracted and hybridization on Affymetrix microarrays was performed.
2008-06-13 | E-GEOD-5300 | biostudies-arrayexpress
Project description:We studied RSV infection in an appropriate in vitro model of respiratory epithelium, a pseudostratified and fully differentiated mucociliary epithelium of normal human bronchial epithelial (NHBE) cells. RSV infection increased actin cytoskeleton without compromising adherent-, tight-, and tricellular-junctions as well as ciliary functions and epithelial tissue barrier integrity. This increased cytoskeleton depends on actin polymerization and the induction of proinflammatory cytokines and chemokines. Thus, we observed a novel signature “increased cytoskeleton” termed “cytoskeletal inflammation” in RSV-infected respiratory epithelium that presumably lacks classical antigen presenting cells, such as resident dendritic cells and macrophages. Our results suggest that RSV-induced cytoskeletal inflammation is a noncanonical earliest host response to the pathogen and contributes to airway inflammation.
2023-03-10 | GSE146795 | GEO
Project description:Intervention group:Nutritional intervention: NRS2002 assessment scale = 3 points; it is recommended that patients consume 1.2g/kg protein per day; on the basis of general diet, the corresponding ONS will be given according to the patient’s basic disease and intestinal function;Intervention group:Sports intervention: 1) Grip exercise: Provide a 10kg grip dynamometer, and ask patients to exercise 20 times a day for the left and right hands.;Intervention group:Exercise intervention: 2) Aerobic exercise: walking: provide patients with step counting devices, and recommend patients to walk at least 7,500 steps (about 1 hour) a day.;Intervention group:Exercise intervention: 3) Resistance exercise: Climbing stairs exercise: It is recommended that patients climb stairs 3 times a day, up and down 5 floors each time.;Intervention group:Sports intervention: 4) Spinning exercise: It is recommended that patients ride the bicycle 3 times a day for 30 minutes each time.;Intervention group:Sports intervention: 5) Respiratory function exercise: Provide patients with balloons and require patients to perform balloon blowing exercises at least 30 times a day.;Intervention group:Mental sleep intervention: daily before going to bed: ? 2 minutes of breathing exercises, 10 minutes of progressive muscle relaxation exercises and 15 minutes of pleasant guided imagination training.;Intervention group:Psychological sleep intervention: daily before going to bed: ?Combined with the patient’s usual preferences, choose light music, 15-30 minutes before going to bed every day.;Intervention group:Psychological sleep intervention: daily before going to bed: ?Use sedative and sleeping drugs for patients with difficulty falling asleep and sleep disorders.;Control group:Nutritional evaluation before surgery: assess the nutritional status of the patient, instruct the patient to eat a high-protein, high-calorie, high-vitamin diet; eat a small amount of meals, and give supplementary parenteral nutrition su
Primary outcome(s): Complications within 30 days after surgery
Study Design: Parallel
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