WESTERN-BLOT BAND INTENSITY ANALYSIS - APPLICATION TO THE DIAGNOSIS OF LYME ARTHRITIS

被引:22
作者
KOWAL, K [1 ]
WEINSTEIN, A [1 ]
机构
[1] NEW YORK MED COLL, DIV RHEUMAT DIS & IMMUNOL, VALHALLA, NY 10595 USA
来源
ARTHRITIS AND RHEUMATISM | 1994年 / 37卷 / 08期
关键词
D O I
10.1002/art.1780370815
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective. To determine the usefulness of quantitative band-intensity analysis of Western blots for the diagnosis of Lyme arthritis. Methods. IgG Western blots for antibodies to Borrelia burgdorferi were performed on sera from 39 patients with Lyme arthritis, 30 patients with syphilis, 50 patients with connective tissue diseases, and 10 healthy individuals. Band positions and band intensities were calculated using a computerized image analysis system. Results. Lyme arthritis patients had more bands and higher-intensity bands than did non-lyme patients. The presence of at least 2 bands of moderate to high intensity (>40 optical units) or at least 5 bands of lower intensity (>20 optical units) was over 90% sensitive and 100% specific for the diagnosis of Lyme arthritis. A 60-kd band was present in all Lyme arthritis patients. The presence of an 83-, 39-, 21-, or 18-kd band was highly specific for Lyme arthritis. Conclusion. Band intensity analysis increases the objectivity and accuracy of Western blot interpretation for the diagnosis of Lyme arthritis.
引用
收藏
页码:1206 / 1211
页数:6
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