TY - JOUR KW - Antigens, Bacterial KW - Enzyme-Linked Immunosorbent Assay KW - Glycolipids KW - Humans KW - leprosy KW - Mycobacterium leprae KW - Sensitivity and Specificity AU - Mahon A C AU - Nurlign A AU - Kebede B AU - Becx-Bleumink M AU - Lefford M J AB -

A simplified assay to measure the phenolic glycolipid 1 (PGL-1) of Mycobacterium leprae in the urine was applied to the diagnosis of leprosy and the monitoring of antileprosy chemotherapy. One hundred seventy-nine previously untreated patients and 25 normal controls were tested. The specificity of the assay was 100%. There were no false-positive results. The sensitivity of the assay varied with the type of leprosy from 92% for lepromatous leprosy to 56% for borderline lepromatous and 18% for borderline tuberculoid patients. After the onset of chemotherapy in lepromatous leprosy patients, there was often a transient increase of urinary PGL-1, followed by a steady decline. Within 3 months of multiple drug therapy, urinary PGL-1 levels were reduced by 90%-99% and were often undetectable. This assay appears to have considerable potential for monitoring chemotherapy and detecting treatment failure and relapse in patients with Hansen's disease.

BT - The Journal of infectious diseases C1 - http://www.ncbi.nlm.nih.gov/pubmed/1995739?dopt=Abstract DA - 1991 Mar DO - 10.1093/infdis/163.3.653 IS - 3 J2 - J. Infect. Dis. LA - eng N2 -

A simplified assay to measure the phenolic glycolipid 1 (PGL-1) of Mycobacterium leprae in the urine was applied to the diagnosis of leprosy and the monitoring of antileprosy chemotherapy. One hundred seventy-nine previously untreated patients and 25 normal controls were tested. The specificity of the assay was 100%. There were no false-positive results. The sensitivity of the assay varied with the type of leprosy from 92% for lepromatous leprosy to 56% for borderline lepromatous and 18% for borderline tuberculoid patients. After the onset of chemotherapy in lepromatous leprosy patients, there was often a transient increase of urinary PGL-1, followed by a steady decline. Within 3 months of multiple drug therapy, urinary PGL-1 levels were reduced by 90%-99% and were often undetectable. This assay appears to have considerable potential for monitoring chemotherapy and detecting treatment failure and relapse in patients with Hansen's disease.

PY - 1991 SP - 653 EP - 6 T2 - The Journal of infectious diseases TI - Urinary phenolic glycolipid 1 in the diagnosis and management of leprosy. VL - 163 SN - 0022-1899 ER -