Direct effects of doxorubicin on skeletal muscle contribute to fatigue.

Autor: van Norren, K., van Helvoort, A., Argilés, J. M., van Tuijl, S., Arts, Karin, Gorselink, M., Laviano, A., Kegler, D., Haagsman, H. P., van der Beek, E. M., Argilés, J M
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Zdroj: British Journal of Cancer; 1/27/2009, Vol. 100 Issue 2, p311-314, 4p, 1 Chart, 3 Graphs
Abstrakt: Chemotherapy-induced fatigue is a multidimensional symptom. Oxidative stress has been proposed as a working mechanism for anthracycline-induced cardiotoxicity. In this study, doxorubicin (DOX) was tested on skeletal muscle function. Doxorubicin induced impaired ex vivo skeletal muscle relaxation followed in time by contraction impediment, which could be explained by DOX-induced changes in Ca(2+) responses of myotubes in vitro. The Ca(2+) responses in skeletal muscle, however, could not be explained by oxidative stress. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index