Lydia Sharp1,2, Diana C Cox1,3, Thomas A Cooper1,4,5. 1. Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas. 2. Department of Neurology, Baylor College of Medicine, Houston, Texas. 3. Department of Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, Texas. 4. Department of Molecular Physiology & Biophysics, Baylor College of Medicine, Houston, Texas. 5. Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, Texas.
Abstract
INTRODUCTION: Myotonic dystrophy type 1 (DM1) is a multisystemic disease caused by expansion of a CTG repeat in the 3' UTR of the Dystrophia Myotonica-Protein Kinase (DMPK) gene. While multiple organs are affected, more than half of mortality is due to muscle wasting. METHODS: It is unclear whether endurance exercise provides beneficial effects in DM1. Here, we show that a 10-week treadmill endurance exercise program leads to beneficial effects in the HSALR mouse model of DM1. RESULTS: Animals that performed treadmill training displayed reduced CUGexp RNA levels, improved splicing abnormalities, an increase in skeletal muscle weight and improved endurance capacity. DISCUSSION: These results indicate that endurance exercise does not have adverse effects in HSALR animals and contributes to beneficial molecular and physiological outcomes.
INTRODUCTION:Myotonic dystrophy type 1 (DM1) is a multisystemic disease caused by expansion of a CTG repeat in the 3' UTR of the Dystrophia Myotonica-Protein Kinase (DMPK) gene. While multiple organs are affected, more than half of mortality is due to muscle wasting. METHODS: It is unclear whether endurance exercise provides beneficial effects in DM1. Here, we show that a 10-week treadmill endurance exercise program leads to beneficial effects in the HSALR mouse model of DM1. RESULTS: Animals that performed treadmill training displayed reduced CUGexp RNA levels, improved splicing abnormalities, an increase in skeletal muscle weight and improved endurance capacity. DISCUSSION: These results indicate that endurance exercise does not have adverse effects in HSALR animals and contributes to beneficial molecular and physiological outcomes.
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