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Exercise Training Regulates Cortical GPCR-Mediated Signaling Networks Through cAMP, Calcium, and Neuroactive
Yin-Yu Chiang1, Michael Anekson Widjaya2, Shin-Da Lee3
1PhD Program for Health Science and Industry, China Medical University, Taichung 406040, Taiwan.
Exercise training impacts brain G-protein coupled receptor (GPCR) pathways in diabetic obesity. This study reveals exercise-induced changes in cAMP and calcium signaling pathways in the cerebral cortex of diabetic rats.
Area of Science:
- Neuroscience
- Metabolic Disorders
- Molecular Biology
Background:
- Diabetic obesity is associated with neurological complications.
- The role of cortical G-protein coupled receptor (GPCR) pathways in diabetic obesity is not well understood.
- Exercise is a potential intervention for managing diabetic obesity and its complications.
Purpose of the Study:
- To investigate exercise-associated GPCR-related transcriptomic pathway changes in the cerebral cortex of diabetic-obese rats.
- To identify specific GPCR signaling networks affected by exercise in this condition.
Main Methods:
- Utilized Zucker Fatty Diabetes Mellitus (ZFDM) rats subjected to a 12-week swimming program.
- Employed RNA sequencing for transcriptomic analysis.
- Performed functional enrichment, GSOAP clustering, and STRING-based protein-protein interaction (PPI) analysis.
Main Results:
- Exercise training improved glycemic control and reduced body weight in ZFDM rats.
- Identified 817 exercise-responsive transcripts, including 48 linked to GPCR signaling.
- Discovered exercise-induced alterations in cAMP signaling, calcium signaling, and neuroactive ligand-receptor interaction networks.
Conclusions:
- Exercise elicits significant transcriptomic changes in cortical GPCR pathways in diabetic-obese rats.
- Findings provide a foundation for understanding the molecular mechanisms underlying exercise benefits in diabetic obesity.
- Suggests GPCR pathways as potential targets for therapeutic interventions.
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