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lüll The AIDS dementia complex: clinical and basic neuroscience with implications for novel molecular therapies Navia BA; Rostasy KNeurotox Res 2005[Oct]; 8 (1-2): 3-24The AIDS dementia complex (ADC, also referred to as HIV-associated cognitive impairment) is a common disorder among HIV-infected patients associated with both inflammatory and neurodegenerative processes. This review describes recent advances in the clinical and basic neurosciences of HIV infection and discusses the multivariable nature of what has become a chronic disorder in the context of highly active antiretroviral therapies (HAART). Since its initial description twenty years ago, advances in cell and molecular biology along with those in neuroimaging have furthered our understanding of the underlying pathogenic mechanisms. The clinical and neuropsychological profile of ADC is generally consistent with a "frontal-subcortical" pattern of injury. Neuropathogenesis is largely driven by indirect mechanisms mediated by infected, or more commonly, immune activated macrophages, which secrete viral and host-derived factors. Magnetic resonance spectroscopy (MRS) provides a robust in vivo method to measure the inflammatory and neurotoxic events triggered by these factors and their associated signals. Although the use of combined or highly active antiretroviral therapies (HAART) has significantly improved survival rates, cerebral injury and cognitive impairment remain common events. Factors such as aging and chronic infection will likely impact the course of this disease, its pathogenesis, and treatment. The combined observations presented in this review suggest a number of critical areas for future inquiry.|AIDS Dementia Complex/epidemiology/immunology/*pathology/psychology/*therapy/virology[MESH]|Aging/physiology[MESH]|Animals[MESH]|Antiretroviral Therapy, Highly Active[MESH]|Biomarkers[MESH]|Brain Chemistry[MESH]|Chemokines/metabolism[MESH]|HIV-1/pathogenicity[MESH]|Humans[MESH]|Neurons/pathology[MESH]|Neurotoxins/metabolism[MESH]|Viral Load[MESH] |