Differential Changes in Type I And Type Ii Muscle Fibres in Rheumatoid Arthritis: A Biopsy Study
作者： Lars Edstrom , Rolf Nordemar
DOI: 10.3109/03009747409097142
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摘要: Thirteen patients with classical or definite rheumatoid arthritis (RA) have been investigated by the application of a battery histochemical staining methods on muscle biopsy material, viz. myofibrillar ATPase, modified ATPase method acid preincubation, phosphorylase, glycogen (PAS), succinic dehydrogenase, NADH2tetrazolium reductase, fat (sudan black B). Hematoxylin-eosin stain and trichrome were also used. Based their stainability for fibres are classified as type I (lightly stained) II (darkly stained). A preferential atrophy is evident. segmental degeneration accompanied loss enzyme activity found in both types fibre. It emphasized that must be result more complex mechanism than simple “disuse”. One cases exhibits pronounced change localisation enzymes substrates atrophic well normal-sized fibres. reversal normal ...
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