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Biomedical subjects

M Jankowski

Publications and source records attributed to M Jankowski.

At least 109 records · Page 6Linked to original sources
PubMed1980

Cell-mediated immune reactions in measles.

Cell-mediated reactions in measles cases, in direct contacts and healthy children were tested. Indices of phytohaemagglutinin-stimulated blastic transformation and leukocyte migration inhibition were evaluated. Positive reactions were found in the first and second weeks after manifestation of clinical symptoms. The application of glucocorticosteroids in clinical complications resulted in delayed and reduced leukocyte migration inhibition. Studies on seronegative contacts suggested that positive cell-mediated reactions may appear before manifestation of clinical symptoms.

Antibodies, Viral↗
PubMed1979

Study of interaction between IgG and IgM antibodies against rubella virus by the immunofluorescence method.

In immunoglobulin fractions or after elimination of IgG by absorption the immunofluorescence test for rubella IgM antibodies is more sensitive than in whole serum. Blocking of IgM activity by IgG antibodies was eliminated when the time of incubation of the serum with virus antigen was prolonged. After prolonged incubation higher titres of rubella antibodies were also obtained in the IgM immunoglobulin fractions. Protein A in Staphylococcus aureus suspension effectively absorbs antibodies of IgG class. The IgM antibody titres in absorbed sera of patients infected with rubella were in some cases 2 to 4 times higher than in unabsorbed sera.

Antibodies, Viral↗
PubMed1979

IgM antibodies in rubella infections: absorption with staphylococcal protein A of sera examined by immunofluorescence and haemagglutination inhibition.

A similar frequency of positive results for rubella IgM antibodies in the sera of rubella patients and persons contacting such patients was obtained by immunofluorescence after separation of IgM is sucrose gradient and after absorption of the sera with Staphylococcus aureus and immunoglobulin aggregates. Compared to the immunofluorescence method, the haemagglutination method for rubella IgM antibodies performed after absorption of the sera with S. aureus and reduction of immunoglobulins M with 2-mercaptoethanol was less sensitive for serum samples taken in the acute phase of the disease and 5 weeks after the appearance of rubella symptoms.

Absorption↗
PubMed1977

The application of different cell lines and virus strains for detection of immunofluorescence rubella antibodies.

Fluorescence antibodies (FA) were titrated in human sera against antigens synthesized in four different infected cell lines: SIRC, RK-13, Vero and BHK-21. The cells infected in suspension by rubella virus attained the optimal concentration of fluorescence staining antigen earlier, fluorescence was more intensive and the titers of the tested human sera were slightly higher than in monolayer cell cultures. FA titers were high and they were correlated with the antibody titers obtained by hemagglutination-inhibition test. Some practical implications of these findings are discussed.

Antibodies, Viral↗