[Specific antibodies to different mycobacterial antigens in patients with pulmonary tuberculosis].

Antibodies to three mycobacterial antigens, Soviet tuberculin and ultrasound-treated Mycobacterium tuberculosis (H37Rv) and M. bovis (BCG) were detected by enzyme immunoassay in 90 patients with pulmonary tuberculosis and 75 normal subjects. Antibody detection rates and levels were found related to the form of tuberculous process.

[The characterization of the spectrum of the antibody response to Mycobacterium tuberculosis antigenic determinants by immunoblotting].

The spectrum of antibody response to M. tuberculosis antigenic determinants H37Rv and M. bovis antigenic determinants BCG was studied in serum samples from 33 healthy donors and 31 patients with infiltrative pulmonary tuberculosis by the method of immunoblotting.

[Biochemical study of the pleural fluid in exudative pleurisy].

The authors relate the data on the importance of a biochemical analysis of the pleural fluid for the differential diagnosis of pleurisy and identification of the early signs of pleural fluid suppuration. For the purposes of the differential diagnosis between transudates and exudates measurements are made of the protein content and LDH activity in the pleural fluid. The exudate protein/serum protein and exudate LDH/serum LDH ratios are computed in necessary cases.