Abstract
Studies of behavior, neurophysiological reactions, neuromediator synthesis and brain structure of mice of the 101/HY strain (including those of the authors) are reviewed. This mouse strain is characterized by a chromosomal instability because of a recessive mutation mutator-1(mut-1) and the defective DNA excision repair. Experimental studies revealed a number of behavioral and neurological deviations in the 101/HY as compared to the CBA and the C3H mouse strains. These are abnormalities in spatial orientation, altered fear and anxiety reactions, anomalous locomotion, seizure developing in response to agents of various nature, and disturbances of the central nervous system, both structural and biochemical. Genome instability results in a number of neurological mutations, that may lead to the phenotypical effects observed in the 101/HY mice. Since the 101/HY mice partially display signs of severe human hereditary diseases caused by chromosomal instability and defective DNA repair, they can serve as a promising genetic model for these and other diseases related to impairment of the central nervous system.
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