RESUMO
48 full-length Borrelia garinii and Borrelia afzelii from West Siberia and Mongolia ospA gene nucleotide sequences was determined. Four groups of Borrelia garinii were revealed using the analysis of nucleotide sequences. The most variable ospA gene region was demonstrated to be included in region where the antigenic determinants of protein were encoded. High homology level was shown for nucleotide sequences corresponding to isolates of Borrelia afzelii.
Assuntos
Antígenos de Superfície/genética , Proteínas da Membrana Bacteriana Externa/genética , Vacinas Bacterianas/genética , Grupo Borrelia Burgdorferi/genética , Variação Genética , Lipoproteínas/genética , Homologia de Sequência do Ácido Nucleico , Mongólia , SibériaRESUMO
The 35 full-length Borrelia burgdorferi sensu lato complex a83/100 gene nucleotide sequences were determined. High level of homology was observed in the nucleotide sequences corresponding to the strains and isolates of Borrelia fzelii. The analysis of the nucleotide sequences revealed two groups of Borrelia garinii. The most variable p83/100 gene region containing species-typical insertions and deletions was demonstrated to be included into the region where the antigenic determinants of protein were encoded. According to the data obtained in this work, the modification of the P83/100 protein structure and immunological properties could be suggested to exist even within species. The results of this work could be used for receiving recombinant P83/100 proteins useful for diagnostic applications.
Assuntos
Antígenos de Bactérias/química , Antígenos de Bactérias/genética , Proteínas de Bactérias/química , Proteínas de Bactérias/genética , Grupo Borrelia Burgdorferi/classificação , Variação Genética , Sequência de Aminoácidos , Sequência de Bases , Grupo Borrelia Burgdorferi/genética , Grupo Borrelia Burgdorferi/imunologia , Genes Bacterianos , Dados de Sequência Molecular , Mutagênese Insercional , Filogenia , Análise de Sequência de DNA , Deleção de SequênciaRESUMO
The follow-up included two groups of schoolchildren: 862 were repeatedly given BCG and 725, BCG-M vaccines. It was demonstrated that both vaccines had the same effectiveness and the latter could also be used. Upright tomographic findings in 70 children showed that it was highly informative for the diagnosis of intrathoracic tuberculosis in children, especially for that of bronchoadenitis. Monitoring of 315 children with destructive pulmonary processes (157 of them had lesions of tuberculous etiology) made it possible to define risk factors of destructive tuberculosis contamination (in particular, genetical predisposition), the diagnostic criteria and high diagnostic value of the enzyme-linked immunoassay (96%). Ultrasound examination of the liver in 121 tuberculosis children enabled one to diagnose the type and etiology of liver affection, to control its state during treatment, to specify the side effects of the drugs and to modulate the therapy. The course and outcomes of tuberculosis were found to be affected by liver affections. The parenteral administration of isoniazid in combination with other drugs was shown to be highly beneficial in disseminated form of tuberculosis in children.
