Metformin protects the skeletal muscle glycogen stores against alterations inherent to functional limitation

• Autor(a) principal: Bosi,Paula Lima
• Data de Publicação: 2008
• Outros Autores: Borges,Gabriel Delfino, Durigan,João Luiz Quagliotti, Cancelliero,Karina Maria, Silva,Carlos Alberto da
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Archives of Biology and Technology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200009
• topic: Muscle disuse; metformin; skeletal muscle; rehabilitation

The aim of this study was to evaluate the glycogen content (GC) of the rat hind limb muscles submitted to joint immobilization, either associated with metformin treatment (M, 1,4mg.ml-1) or not. In the metformin group, there was a significant increase in the GC (soleus - S 65% , white gastrocnemius - WG 30.5%, red gastrocnemius- RG31.7%, extensor digitorum longus - EDL 44%, tibialis anterior- TA 77.4%). The immobilization significantly reduced the GC (S 31.6%, WG 56.6%, RG 39.1%, ELD 41.7%, TA 45.2%) and weight (S 34.2% and ELD 27%), whereas in the group immobilized with the metformin, there was an increase in the GC of all the muscles (S 177%, WG 290%, RG 172%,ELD 47%, TA 217%), in addition to minimizing the weight loss of S (29.6%) and ELD (27.8%).