Abstract
Cerebellar degeneration remains a poorly studied topic. Excitotoxicity, i.e. neuronal damage and death due to excess activation of postsynaptic N-methyl-D-aspartate receptors (NMDAR) by glutamate, is considered to be a universal mechanism of most neurodegenerative conditions. The use of antagonists that predominantly block NMDAR in cases of excitotoxicity is a very promising treatment strategy for neurodegenerative disorders. This review presents the known structure and function of NMDAR. Information on studies investigating the use of NMDAR antagonists in the treatment of neurodegenerative diseases is provided. Creation of new therapies to correct excitotoxicity in various neurodegenerative disorders, for example, spinocerebellar ataxias, requires further study of the subunit composition and the role of NMDAR in the cerebellum. Treatment methods that combine the use of extrasynaptic NMDAR antagonists or synaptic NMDAR agonists with drugs that affect the total amount of glutamate in the synaptic cleft are promising.
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