Project description:Moderate exercise is important for health; however, individuals differ in moderate intensity and it is difficult to identify. The purpose of this study was to identify new objective indicators to determine effective exercise intensity.
Project description:To explore the effects of moderate intensity exercise on protein of lactylation in mouse muscle tissue metabolism. The healthy adult mice running for 6 weeks as exercise model and sedentary mice as control were used to perform transcriptomic, proteomic, lactylation-proteomics, and metabolomics analysis. In addition, correlation analysis between transcriptome and proteome, and proteome and metabolome was conducted as well. In this study, 159 lactate sites of 78 proteins were identified to be differentically regulated by moderate intensity exercise. Enrichment analysis showed that lactated proteins Mtatp8, Atp5mg and Atp5po exhibited ATP hydrolysis activity. They are involved in biological processes such as mitochondrial transmembrane transport, and Mtatp8, Atp5mg and Atp5po participate in Oxidative phosphorylation and Thermogenesis pathways. The lactation levels of Mtatp8, Atp5mg and Atp5po proteins in exercise group were significantly decreased, while their protein levels were significantly increased. The combined analysis of proteomics and metabolomics showed that the Oxocarboxylic acid metabolism pathway and Sphingolipid signaling pathway had significant changes under the influence of moderate intensity exercise. Our results showed that moderate intensity exercise has a certain effect on the lactylation level of mice, possibly by reducing lactylation levels of Mtatp8, Atp5mg and Atp5po and increasing the expression of their protein levels, thereby regulating the Oxidative phosphorylation pathway and participating in energy metabolism. 2-Oxocarboxylic acid metabolism pathway and Sphingolipid signaling pathway need to be further explored.
Project description:Physical exercise is beneficial to keep physical and mental health. The molecular mechanisms underlying exercise are still worth exploring.The healthy adult mice after six weeks of moderate-intensity exercise (experimental group) and sedentary mice (control group) were used to perform transcriptomic, proteomic, lactylation modification, and metabolomics analysis. In addition, gene sets related to hypoxia, glycolysis, and fatty acid metabolism were used to aid in the screening of hub genes. The mMCP-counter was employed to evaluate infiltration of immune cells in murine liver tissues.
Project description:While exercise is widely recognized to enhance bone mass, the underlying molecular and cellular mechanisms remain incompletely elucidated. The present study was designed to investigate the effect of moderate-intensity exercise on skeletal quality, morphological characteristics, and metabolic homeostasis in adult Sprague-Dawley (SD) rats. Herein, we aim to investigate the expression profile of mRNAs in rats with exercise and identify promising targets for osteoporosis diagnosis and treatment. RNA sequence were performed in the bones from 3 exercised rats and 3 healthy controls.
Project description:To explore the effects of moderate intensity exercise on protein of lactylation in mouse muscle tissue metabolism. The healthy adult mice running for 6 weeks as exercise model and sedentary mice as control were used to perform transcriptomic, proteomic, lactylation-proteomics, and metabolomics analysis. In addition, correlation analysis between transcriptome and proteome, and proteome and metabolome was conducted as well.
Project description:Purpose: Using RNA-sequencing technology to screen the effect of moderate-intensity treadmill exercise on the key genes that affect bone mass in the peripheral blood mononuclear cells (PBMCs) of ovariectomized (OVX) rats. Methods: Three-month-old female Sprague–Dawley rats of Specific Pathogen Free (SPF) grade were randomly divided into the sham operation (SHAM) group, OVX group, and OVX combined exercise (OVX+EX) group. The OVX+EX group performed moderate-intensity treadmill exercise for 17 weeks. Upon completion of these exercises, the body composition and bone mineral density (BMD) were measured using dual-energy X-ray absorptiometry, and the bone microstructure of the femur was observed using micro-computed tomography scanning. PBMCs were collected from the abdominal aorta, and the differential genes were analyzed by transcriptome sequencing. The Metascape software was used for gene ontology and pathway enrichment analysis to further screen key genes. Results: 1. In the OVX group, the body weight and body fat content were significantly higher than in the SHAM group and the body muscle content and BMD were significantly lower. 2. The trabecular bone parameters in the OVX group were significantly lower than in the SHAM group, and they were significantly higher in the OVX+EX group than in the OVX group. When compared with the SHAM group, the microstructure of the distal femur trabecular in the OVX group was severely damaged, the trabecular bones were sparse, and there was a large gap between the trabecular bones. The number and continuity of the trabecular bones were higher in OVX+EX group than in the OVX group. 3. A Venn diagram showed that there were 58 common differential genes, with a fold change ≥2 and p value <0.05. and the differential genes were mainly enriched in the PI3K-Akt signaling pathway. Five key genes were screened including CCL2, Nos3, Tgfb3, ITGb4, and LpL. Conclusion: Moderate-intensity treadmill exercise may improve the body composition and bone mass of the OVX group by upregulating CCL2 and other genes of the PBMC. The results also showed that the PBMCs in the peripheral blood can be a useful tool for monitoring the effect of exercise on bone health in postmenopausal osteoporosis.
Project description:The primary aim of this study was to compare the acute effects of three exercise intensities on abdominal subcutaneous adipose tissue (aSAT) transcriptome in regular exercisers. A total of 45 adults who exercise regularly were assigned to perform a single session of either low-intensity continuous (LOW; 60min at 30% VO2max; n=15), moderate-intensity continuous (MOD; 45min at 65% VO2max; n=15), or high-intensity interval exercise (HIGH; 10x1min at 90% VO2max interspersed with 1min active recovery; n=15). aSAT biopsy samples were collected before and 1.5hours after the exercise session for bulk RNA sequencing and targeted protein immunoassays. HIGH upregulated genes involved in cytokine secretion, insulin signaling, and proteolysis while MOD and LOW upregulated genes regulating ECM remodeling, ribosome biogenesis, and oxidative phosphorylation pathways. Exercise-induced changes in aSAT angiogenic, MAPK cascade, and clock genes, ERK protein phosphorylation, and circulating cytokines were similar after all three exercise treatments. Network analysis identified exercise-responsive gene clusters linked to cardiometabolic health traits. Cell-type analysis highlighted a heterogeneous response of aSAT cell types to exercise, with distinct patterns observed across exercise intensities. Collectively, our data characterizes early responses in aSAT after a single session of exercise. Because adaptations to exercise training stem from an accrual of responses after each session of exercise, these early responses to exercise are likely important contributors to the long-term structural and functional changes that occur in adipose tissue in response to exercise training.
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.
Project description:In order to assess the impact of treadmill exercise on traumatic brain injury outcomes, we subjected male and female swiss webster mice to a controlled cortical impact (CCI), followed by 10 days of sedentary, low-, moderate-, or high-intensity treadmill exercise. Outcome measures included neurometabolic function, cognitive recovery, oxidative stress, pathophysiology, and single nuclei RNA sequencing (snRNA seq). The snRNA seq study was conducted on both male and female mice, and included a total of 2 replicates (each was a pool of 2 tissue samples) from each of the following groups: male sham sedentary, male CCI sedentary, male CCI low, male CCI high, female sham sedentary, female CCI sedentary, female CCI low, female CCI high. Our data reveal exercise intensity- and sex-dependent effects of treadmill exercise following injury. Transcriptomic changes were largely limited to the low-intensity exercised CCI males.