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Biomedical subjects

B Kálmán

Publications and source records attributed to B Kálmán.

4 recordsLinked to original sources

Immunopathogenic mechanisms in experimental allergic encephalomyelitis.

Experimental allergic encephalomyelitis, a cell-mediated autoimmune disease, continues to provide interesting data on the mechanisms subserving organ-specific autoimmunity. The elements of the trimolecular complex have been further defined and the conserved molecular basis of the interaction between the T-cell receptor and the major histocompatibility complex class II-peptide antigen complex is better understood. This model also provides new insights into the cellular interactions within the brain during the course of the autoimmune inflammatory response.

Animals↗

Sclerosis multiplex in gypsies.

MS rarely occurs in gypsies in Hungary despite the high DR2 frequency. When it does occur, it has special features more resembling that of Asians than Central Europeans. In order to find correlation between the clinical observations and the immunogenetical data, the distribution of DQw1 subtypes was investigated by means of Eco RV - DQ beta RFLP in DR2 positive healthy gypsies and Hungarians, as well asin DR2-positive Hungarian and unselected gypsy MS patients. DQw6 correlated with MS susceptibility in Hungarians. This allotype was completely absent in healthy DR2-positive gypsies. DR2-positive gypsy MS patients, however, carried DQw6. No correlation of complement allotypes with the occurrence of MS was found in Hungarians, while a striking elevation of C4 Q0 occurred in gypsy MS patients compared with healthy individuals in the gypsy group. The absence of the DR2, DW2, DQw6 haplotype, and the frequency of C4A Q0 in healthy gypsies seems to be associated with the low MS prevalence, but genes outside this region might also influence the MS susceptibility.

Alleles↗