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Significance of antibodies to phenolic glycolipid-I in leprosy diagnosis.

Abstract

A gelatin particle agglutination assay for the detection of anti PGL-I antibodies in 40 clinically diagnosed and variously classified groups of leprosy cases revealed elevated PGL-I antibody titers in 85% of cases. In contrast, the slit-skin smear examination was positive in only 30% of cases. It was further observed that, out of 28 cases with Bacteriological Index (B.I.) zero, 22 cases (78.5%) had significant levels of PGL-I antibodies. There was no case in which the slit skin smear was positive and the PGL-I antibody titer was not significant. The elevated titers of PGL-I antibody better correlated (84%) with histopathological findings than did B.I. Thus it was concluded that estimation of PGL-I antibody titer is a better supplement to clinical diagnosis than B.I. Significant levels of PGL-I antibody were seen in 85% of cases who had no earlier chemotherapy or were treated for less than 2 months. Similar findings were observed in 12 patients who were on MDT for more than 5 months but for less than 2 years. In order to determine the significance of anti PGL-I antibodies in monitoring the response of patients to chemotherapy, a longer follow up with a greater number of cases should be contemplated.

More information

Type
Journal Article
Author
Prakash K
Aggarwal R
Sehgal V N

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