Clofibrate-Induced Myotoxicity in Rats

Abstract
The temporal sequence of myopathology during a clofibrate-induced muscular syndrome and its recovery in rats is described using histopathologic, histochemical and electron microscopic techniques. Two stages of myopathology are described: an early stage characterized by myopathic features, and a later stage characterized by neurogenic features. Although muscle histology returns to normal after 1 wk of discontinuing the drug, electron microscopic abnormalities persist through the 2nd wk. It is proposed that clofibrate, in addition to its myotoxic effect, may be neurotoxic.

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