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Biomedical subjects

R Smolik

Publications and source records attributed to R Smolik.

At least 55 records · Page 3Linked to original sources

HLA and antinuclear antibody incidence in asbestos workers.

The incidence of antinuclear antibodies (ANA) in asbestos textile workers was compared with the results of HLA typing. HLA B8 antigen was more frequent in the ANA-positive group as compared to the ANA-negative group. The relative risk of this associati-n is 2.77 (p less than 0.02) without correction for the number antigens tested. A decrease in frequency of HLA A10 in workers with ANA was also found. The results suggest that the development of ANA under asbestos hazard may depend on inherited predisposition of which HLA B8 is a marker.

Antibodies, Antinuclear↗

Diagnostic specificity of autoantibodies. II. Clustering of autoantibodies--role in diagnosis and in comparison to E--and EAC-RFC peripheral blood profiles and immunoglobulin levels.

Clustering of ANA and SMA was evaluated in patients with various internal diseases as a pattern of autoantibody formation. SMA was found in ANA positive patients with chronic hepatitis, undefined collagenoses and autoallergic thyroid diseases significantly more frequently, than in patients without any autoallergic disorders. The incidence of SMA in ANA positive cases with SLE and RA did not exceed their predictable by chance incidence. It was not found that clustering of autoantibodies is correlated with the E and C lymphocyte receptor abnormality as compared to the control group. The lowest count of E-RFC was found in SLE cases which differed significantly in this respect from the control group and also from chronic vasculitis cases. The clustering of autoantibodies is not correlated with hyperimmunoglobulinemia.

Antibodies, Antinuclear↗

Cellular immunity in asbestosis.

A highly statistically significant correlation was found between asbestosis and impaired responsiveness in skin reaction to intermediate and second strength tuberculin and SK-SD. Considering ANA incidence these antibodies were found with higher frequency in asbestos workers who lacked a cutaneous response to the recall antigens. In asbestosis cases peripheral blood lymphocyte profiles are also abnormal demonstrating low proportions of E-RFC. Moreover, MIF test results showed the impairment of this cytokine generation when lymphocytes were stimulated with SK-SD, PPD and PHA in asbestosis cases. The lymphocyte transformation study documents an impaired response mainly to a lower dose of PHA and ConA in asbestosis cases and in asbestos workers with ANA.

Antibodies, Antinuclear↗

Hepatitis associated antigen, autoantibodies and serum immunoglobulin levels in patients with liver injury following administration of antituberculosis drugs.

32 patients with liver injury following the administration of tuberculosis drugs were examined for HAA, ANA, SMA and serum immunoglobulin levels. HAA was found in 38-7% of patients. SMA were detected in some HAA positive as well as in HAA negative cases. ANA except in one case were found in the HAA negative group. Serum IgM levels are significantly higher in patients with liver injury as compared to the normal values. The highest levels of IgG and IgM were found in the ANA or/and SMA-positive cases.

Adult↗

HLA antigens in asbestosis.

One hundred thirty-four workers in an asbestos factory who had been in contact with asbestos for about 20 years, were typed for 22 HLA antigens of the A and B loci. In this group, 22 workers were diagnosed as asbestosis patients on the basis of chest radiography and clinical findings; the remaining 112 were without signs of asbestosis. In the group of asbestosis patients an increase of B27 antigen was observed in comparison with the group without asbestosis (27-27% and 9-82% respectively). The relative risk = 3-44 is significant at the level of p less than 0-05. These results may indicate that a genetic factor, connected with HLA locus has influence on the development of asbestosis under conditions of contact with asbestos.

Asbestosis↗