Histochemical and ultrastructural study of human muscles after spontaneous rupture of the tendon

L. Józsa, J. B. Balint, S. Demel

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The authors studied the histochemical and ultrastructural alterations of human muscles after spontaneous rupture of the tendon. Both succinate dehydrogenase (in type I fibres), and ATPase (in type 2 fibres) activity decreased in all injured muscles. In the intact antagonists and in contralateral muscles alterations were not found. The creatine phospholinase and aldolase activity were decreased also in the injured muscles. The lactate dehydrogenase activity was various both in affected and in unaffected antagonist muscles. 2 weeks or more after the rupture of the tendon, in the injured muscles the number of type 1 fibres was decreased and therefore a statistically significant type 2 fibre predominance occurred. Ultrastructurally the disruption and disorientation of the myofibrils, streaming and disorganisation of Z line were found. The sarcolemma was arranged, the sarcoplasmic reticulum was dilated, both normal, pycnotic and enlarged mitochondria were observed. The motor end-plates were not discernible.

Original languageEnglish
Pages (from-to)61-73
Number of pages13
JournalActa Histochemica
Volume63
Issue number1
Publication statusPublished - 1978

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Spontaneous Rupture
Tendons
Muscles
Slow-Twitch Muscle Fibers
Motor Endplate
Sarcolemma
Fructose-Bisphosphate Aldolase
Succinate Dehydrogenase
Creatine
Myofibrils
Sarcoplasmic Reticulum
L-Lactate Dehydrogenase
Adenosine Triphosphatases
Rupture
Mitochondria

ASJC Scopus subject areas

  • Cell Biology

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Histochemical and ultrastructural study of human muscles after spontaneous rupture of the tendon. / Józsa, L.; Balint, J. B.; Demel, S.

In: Acta Histochemica, Vol. 63, No. 1, 1978, p. 61-73.

Research output: Contribution to journalArticle

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