Evaluation of exposure of pemphigus vulgaris patients to Mycobacterium tuberculosis and Aspergillus fumigatus |
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Authors: | R A Ali R H Elsherif M A Saleh M H Ismail |
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Institution: | 1.Department of Botany and Microbiology, Faculty of Science,Cairo University,Cairo,Egypt;2.Department of Clinical Pathology, Faculty of Medicine,Cairo University,Cairo,Egypt;3.Department of Dermatology, Faculty of Medicine,Cairo University,Cairo,Egypt |
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Abstract: | The purpose of this study was to screen pemphigus vulgaris (PV) (autoimmune bullous skin disease) for the presence of immunoglobulin G against Mycobacterium tuberculosis and Aspergillus fumigatus. The sera of 60 PV patients and 28 controls were screened for the presence of immunoglobulin G against M. tuberculosis and A. fumigatus by enzyme-linked immune-sorbent assay. Forty patients were females and 20 were males. The range of IgG against M. tuberculosis was from 0.9 to 152.6 (median?=?2.95) in the patients and was from 0 to 2.2 (median?=?1.6) in the controls. Seven (11.7 %) patients and none of the controls exceeded the cut-off value. Four patients were on systemic steroids and azathioprine and three did not receive treatment before. The results showed that PV patients had significantly more IgG against M. tuberculosis than the controls; the p value was 0.006. The range of IgG against A. fumigatus was from 1.3 to 76.3 (median?=?4.9) in the patients and was from 1 to 105.3 (median?=?5.25) in the controls. Six (10 %) patients and eight (28.6 %) controls exceeded the cut-off value. The six patients were on systemic steroids and azathioprine. No significant difference was detected between PV patients and controls regarding exposure to A. fumigatus; the p value was 0.308. PV patients showed significantly more exposure to the M. tuberculosis than the controls. This suggests that M. tuberculosis may contribute to the pathogenesis of PV. |
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