PMID- 10880046 OWN - NLM STAT- MEDLINE DCOM- 20000727 LR - 20181113 IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 106 IP - 1 DP - 2000 Jul TI - Antiviral treatment normalizes neurophysiological but not movement abnormalities in simian immunodeficiency virus-infected monkeys. PG - 37-45 AB - Simian immunodeficiency virus (SIV) infection of rhesus monkeys provides an excellent model of the central nervous system (CNS) consequences of HIV infection. To discern the relationship between viral load and abnormalities induced in the CNS by the virus, we infected animals with SIV and later instituted antiviral treatment to lower peripheral viral load. Measurement of sensory-evoked potentials, assessing CNS neuronal circuitry, revealed delayed latencies after infection that could be reversed by lowering viral load. Cessation of treatment led to the reappearance of these abnormalities. In contrast, the decline in general motor activity induced by SIV infection was unaffected by antiviral treatment. An acute increase in the level of the chemokine monocyte chemoattractant protein-1 (MCP-1) was found in the cerebrospinal fluid (CSF) relative to plasma in the infected animals at the peak of acute viremia, likely contributing to an early influx of immune cells into the CNS. Examination of the brains of the infected animals after return of the electrophysiological abnormalities revealed diverse viral and inflammatory findings. Although some of the physiological abnormalities resulting from SIV infection can be at least temporarily reversed by lowering viral load, the viral-host interactions initiated by infection may result in long-lasting changes in CNS-mediated functions. FAU - Fox, H S AU - Fox HS AD - Department of Neuropharmacology, The Scripps Research Institute, La Jolla, California, USA. hsfox@scripps.edu FAU - Weed, M R AU - Weed MR FAU - Huitron-Resendiz, S AU - Huitron-Resendiz S FAU - Baig, J AU - Baig J FAU - Horn, T F AU - Horn TF FAU - Dailey, P J AU - Dailey PJ FAU - Bischofberger, N AU - Bischofberger N FAU - Henriksen, S J AU - Henriksen SJ LA - eng GR - R01 MH059468/MH/NIMH NIH HHS/United States GR - MH-55836/MH/NIMH NIH HHS/United States GR - MH-59468/MH/NIMH NIH HHS/United States GR - MH-61224/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (Antiviral Agents) SB - IM CIN - J Clin Invest. 2000 Jul;106(1):11-3. PMID: 10880043 MH - Animals MH - Antiviral Agents/*therapeutic use MH - Blood-Brain Barrier MH - Brain/drug effects/*physiopathology/virology MH - Evoked Potentials, Auditory, Brain Stem/drug effects MH - Macaca mulatta MH - Motor Activity/drug effects MH - Movement Disorders/*drug therapy MH - Simian Acquired Immunodeficiency Syndrome/*drug therapy/physiopathology/virology MH - Simian Immunodeficiency Virus/isolation & purification PMC - PMC314358 EDAT- 2000/07/06 00:00 MHDA- 2000/07/06 00:01 PMCR- 2000/07/01 CRDT- 2000/07/06 00:00 PHST- 2000/07/06 00:00 [pubmed] PHST- 2000/07/06 00:01 [medline] PHST- 2000/07/06 00:00 [entrez] PHST- 2000/07/01 00:00 [pmc-release] AID - 09102 [pii] AID - 10.1172/JCI9102 [doi] PST - ppublish SO - J Clin Invest. 2000 Jul;106(1):37-45. doi: 10.1172/JCI9102.