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We detected the cytokines interleukin-6 (IL-6) and granulocyte macrophage-CSF (GM-CSF) by ELISA in the CSF and serum of 30 HIV-infected patients classified as AIDS dementia complex (ADC), and 20 subjects with other neurological diseases (OND). We have found a high incidence of detectable IL-6 and GM-CSF in the CSF of ADC patients compared with OND patients. No statistical differences were observed between both groups for serum IL-6 and GM-CSF levels. These results suggest an intrathecal synthesis of these cytokines and a possible involvement in the pathogenesis of ADC.

We detected the cytokines interleukin-6 (IL-6) and granulocyte macrophage-CSF (GM-CSF) by ELISA in the CSF and serum of 30 HIV-infected patients classified as AIDS dementia complex (ADC), and 20 subjects with other neurological diseases (OND). We have found a high incidence of detectable IL-6 and GM-CSF in the CSF of ADC patients compared with OND patients. No statistical differences were observed between both groups for serum IL-6 and GM-CSF levels. These results suggest an intrathecal synthesis of these cytokines and a possible involvement in the pathogenesis of ADC. Detectamos as citocinas interleucina-6 (IL-6) e granulócito-macrófago-CSF (GM-CSF) por ELISA no LCR e soro de 30 pacientes infectados por HIV classificados como tendo AIDS-demência complexo (ADC) e de 20 pacientes com outras doenças neurológicas (OND). Encontramos elevada incidência de IL-6 e GM-CSF detectável no LCR de pacientes com ADC, em relação aos pacientes com OND. Diferenças estatísticas não foram observadas entre os dois grupos de pacientes para níveis de IL-6 e GM-CSF no soro. Esses resultados sugerem síntese intratecal dessas citocinas e sua possível participação na patogenia da ADC.