Piyanat Toniti. Effect of chronic salbutamol administration on growth and biochemical changes in striated and cardiac mussles of sprague-dawley rats . Master's Degree(Pathobiology). Mahidol University. : Mahidol University, 2004.
Effect of chronic salbutamol administration on growth and biochemical changes in striated and cardiac mussles of sprague-dawley rats
Abstract:
The effects of chronic oral administration of salbutamol, at 10 times the
therapeutic dose, were studied in male albino (SpragueDawley)
rats. The growth
enhancing effect, as well as the biochemical changes, were evaluated and compared
with control animals.
Chronic massive doses of salbutamol can significantly induce hypertrophy of
skeletal muscles concomitantly with an increase in percentage of type II muscle fiber
as indicated in differential histochemical studies (ATPase and SDH staining). This
hypertrophic effect is observed in muscles with a high percentage of type II muscle
fiber (plantaris muscle). The degree of hypertrophy depends on the duration of
salbutamol administration. A gradual regression was observed after cessation of the
drug administration.
The influences of chronic salbutamol administration on the growth of animals,
food consumption, cardiac muscle fiber and ATP concentration in skeletal muscle
were not obvious, and the deviations from the control group were minimal and nonsignificant.