[Changes in the activity of succinate dehydrogenase and lactate dehydrogenase in the muscles of patients with progressive muscular dystrophy].

Histochemical investigation of 32 biopsy specimens of the muscular tissue taken in patients with Erb's myopathy and 15 bioptic materials from patients with Charcot--Marie--Tooth's amyotrophy was carried out. Characteristics of distribution of enzymes (succinate dehydrogenase, lactate dehydrogenase) in the muscular tissue of the patients referred to above are presented. A quantitative evaluation of the activity of enzymes was made by the method of count of granules of diphormazan with subsequent treatment of data by the statistical variation method.