Mozgászavarok klinikai vizsgálata
Abstract
Movement disorders refers to diseases of the central nervous system where the
movement is disrupted and/or involuntary abnormal movements occures, while the sensory
and primary motor functions relatively well. The most common forms of involuntary
movements are tremor, tikk, korea, dystonia, and parkinsonism. In most cases damage to the
substantia nigra pars compacta and/or cerebellum is responsibel for the appearence of the
symptoms. Before James Parkinson the Hungarian Ferenc Pápai-Páriz has already described four
basic symptoms of the disease: tremor, rigidity, postural instability, and slowless of
movement (1). James Parkinson published the disease description first in 1817 (2). The
Parkinson’s Disease (PD) is the second most common neurodegenerative disorder after
Alzheimer’s (3). The symptoms of the disease are typical of the older age, but younger
patients are becoming more common nowdays (4). PD is slightly common in men and the rate
of illness increase with age (5).
The cause of PD is not yet known. Pathophysiologically, decay of the substantia nigra
pars compacta dopaminergic cells, and α-synuclein-containing Lewy-bodies appeare at
different part of the nervous system.
In addition to genetic factors and mitochondrial dysfunction, environmental factors
also play a role in the development of PD. Other predisposing factors may include pesticides,
head injuries, air pollution, and certain toxins. Caffeine and high uric acid levels may reduce
the chance of PK formation. (3, 6).