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A retrospective analysis of diseases associated with indeterminate HIV western blot patterns
J J Drabick1, V L Horning, J L Lennox
1Infectious Disease Service, Walter Reed Army Medical Center, Washington, DC 20307-5001.
Abstract:
Some individuals possess antibodies which react to HIV-1 Western blot proteins in patterns not diagnostic for HIV infection. A retrospective chart review of patients exhibiting such indeterminate HIV Western blots was performed in comparison to a control cohort of sex- and age-matched individuals from the same population of HIV-negative blots to determine if such blots were associated with any specific disease states. Twenty such patients with 25 indeterminate blots among them were found in a total population of 816 (2.5%). GAG-only (core) Western blots comprised the majority 84% (21/25). An indeterminate blot was statistically associated with Hashimoto's thyroiditis (p less than 0.01) and non-Hodgkin's lymphoma (p less than 0.05). Kikuchi's disease and malignant histiocytosis were associated but the numbers were too small to reach statistical significance. The possibility that these diseases are caused by novel retroviruses, cross-reactive with HIV-1, is discussed in lieu of these findings.