Cerebrospinal fluid dopamine in HIV-1 infection

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Abstract
Increasing evidence suggests significant involvement of the basal ganglia in patients with HIV-1 infection. To study the effect of HIV-1 infection on cerebrospinal fluid (CSF) dopamine levels. CSF dopamine levels were measured by high-performance liquid chromatography. A university-based outpatient clinic in south Florida involved in clinical AIDS research. Twenty-two subjects were enrolled in a prospective, longitudinal study of the neurological complications of AIDS. Five subjects were HIV-seronegative, but at risk for HIV-1 infection, 11 were HIV-1-seropositive without neurological disease and six had HIV-1-related neurological disease. The CSF dopamine mean values were significantly lower in the HIV-1-seropositive group with (P< 0.0001) or without (P < 0.0001) neurological disease than in the HIV-seronegative group. There was a very strong correlation between CD4 lymphocyte counts and CSF dopamine levels (P=0.004) in the neurologically symptomatic group (P= 0.0008), but not in the other two groups. HIV-1 infection appears to have an effect on the central nervous system dopaminergic systems, as reflected in levels of CSF dopamine.

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