GDF11 Treatment Attenuates the Recovery of Skeletal Muscle Function After Injury in Older Rats

Autor: Julius Kahn, Ashraf Khalil, Jennifer Ahlberg, Yu Zhou, David Dukes, Maria Myzithras, Michael Franti, Priyanka Gupta, Tracy Criswell, David B. Hayes, Neel Sharma
Rok vydání: 2016
Předmět:
Zdroj: The AAPS Journal. 19:431-437
ISSN: 1550-7416
DOI: 10.1208/s12248-016-0024-x
Popis: Loss of skeletal muscle mass and function results in loss of mobility for elderly patients. Novel therapies that can protect and/or restore muscle function during aging would have profound effects on the quality of life for this population. Growth differentiation factor 11 (GDF11) has been proposed as a "youthful" circulating factor that can restore cardiac, neural, and skeletal muscle functions in aging animals. However, conflicting data has been recently published that casts doubt on these assertions. We used a complex rat model of skeletal muscle injury that physiologically mimics injuries seen in patients; to investigate the ability of GDF11 and to enhance skeletal muscle regeneration after injury in older rats. Our data showed that GDF11 treatment resulted in a significant increase in tissue fibrosis, accompanied by attenuated functional recovery, as compared to animals treated with vehicle alone. GDF11 impaired the recovery of skeletal muscle function in older rats after injury.
Databáze: OpenAIRE