Functional asymmetry of the cerebral hemispheres: its role in the pathogenesis of ectromelia and melanoma in (CBAxC57BL/6)F1 mice.

The aim of the present work was to identify the role of functional asymmetry in the cerebral hemispheres in the pathogenesis of infectious and oncological pathology in (CBAxC57BL/6)F1 mice. Mice with lefthemisphere dominance of motor functions ("right-handers") were found to be more resistant to infection with ectromelia virus and to show slower growth of tumors after subcutaneous injection of B-16 melanoma than animals with right-hemisphere dominance of motor control ("left-handers"). Thus, this report provides the first evidence for the role of functional asymmetry of the nervous system in the pathogenesis of ectromelia and melanoma (B-16) in (CBAxC57BL/6)F1 mice.

[Demographic aspects of adaptive changes of human immune system in the North]. / Populiatsionnye aspekty adaptivnykh izmenenii immunnoi sistemy cheloveka na Severe.

The dynamics of an immunotypological structure in migrants in Magadan was studied in relation to the duration of residence in the North. The changes were assessed by the integrated immune heterogeneity index, the atypic immune status index, frequencies of some immune phenotypes, the prevalence of clinical immunopathological signs and HLA Class 1 antigen distribution in the groups of the examinees. The dynamics of the immunotypological structure of migrants to the North was shown to have regular features depending upon the duration of "life in the North", some certain time-dependent, qualitative and quantitative characteristics. The mechanisms of some changes in the population immune structure and their role in the adaptation of northern newcomers to extreme ecological conditions are discussed.