Lauren Jozsa

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The macromolecular composition and morphometry of the myotendineal junction (MTJ) of slow-twitch (type 1) and fast-twitch (type 2) muscle fibers were studied in gastrocnemius-soleus-Achilles unit of the rat. Proteoglycans and glycosaminoglycans, type III collagen, fibronectin and laminin could be detected at the myotendineal junction. Due to the membrane(More)
Damage to the adult brain can result in adaptive plasticity in regions adjacent to the site of the principal insult and that the plastic changes may be modulated by post-injury rehabilitation training. In this study, we examined the effects of rehabilitation training on synaptic morphology in the dentate gyrus following transient global cerebral ischemia(More)
The purpose of the present investigation was to study the effect of immobilization in two different positions, shortened or lengthened, on the connective tissue and capillarization of the rat calf muscles. In 18 rats the left hind limb was immobilized so that the soleus and gastrocnemius muscles were in a lengthened position and tibialis anterior was in a(More)
Behavioral training has been shown to induce synaptic plasticity in both intact and injured animals. Because of the possibility that the adaptive changes after ischemic damage may make the brain more malleable to behavioral training, we examined the effects of complex environment (EC) housing and exercise (EX) after global cerebral ischemia on synaptic(More)
Reports have shown that damage to the adult brain can result in adaptive changes in regions adjacent or surrounding the site of the principal injury and that these changes may be modulated by rehabilitation training. In this study, we examined the influence of complex environment housing as a rehabilitation strategy on ischemia-induced synaptic and(More)
The sensory-nerve-ending system of 40 myotendinous junctions of human palmaris longus and plantaris muscles was studied histologically. All the known four types of nerve endings were identified. The Ruffini corpuscles could be found in equally small numbers (one to five) in both the muscular and tendineal sites of the junction. Also the free nerve endings(More)
The fibre composition of 5 hand and 3 arm muscles were investigated by histochemical methods. The hand muscles of the dominant side (right side by the right-handed and left side by the left-handed persons) had a significantly higher amount of type 2 fibre than type 1 fibre. In the same subjects the fibre composition of the 3 investigated arm muscles were(More)
The mechanoreceptor system of the myotendinous junction (MTJ) of human palmaris longus muscle obtained at autopsy was studied histologically from six patients with flaccid paralysis (complete acute tetraplegia 4-6 weeks before the autopsy, due to a spinal cord injury), eight patients with spastic paralysis (chronic hemiplegia due to cerebral stroke) and ten(More)
The damage of the knee extensors was examined with integrated EMG and with histochemical and electron microscopical methods in 23 patients with meniscal injury. The integrated DMG has proved in 2/3 of the patients tonic, in 1/3 both tonic and phasic damage of the muscle function. With histochemical examination the decrease of the ratio of the fibers of type(More)
Morphometric and histochemical changes of muscle spindles and tendon spindles of Golgi were studied in the soleus and gastrocnemius muscles of tenotomized and immobilized rats. The number of intrafusal fibres and mechanoreceptors did not change after either tenotomy or immobilization. The diameter of intrafusal fibres decreased by 14 to 40% three weeks(More)