Document 0104 DOCN M95A0104 TI Zidovudine treatment prolongs survival and decreases virus load in the central nervous system of rhesus macaques infected perinatally with simian immunodeficiency virus. DT 9510 AU Rausch DM; Heyes MP; Murray EA; Eiden LE; Section on Molecular Neuroscience, National Institute of Mental; Health, National Institutes of Health, Bethesda, MD 20892, USA. SO J Infect Dis. 1995 Jul;172(1):59-69. Unique Identifier : AIDSLINE MED/95318560 AB To assess the potential therapeutic effects of zidovudine, rhesus macaques were inoculated with simian immunodeficiency virus (SIV) strain SMM/B670 at birth and infused either continuously or intermittently with zidovudine for 6-7 months. Zidovudine did not prevent infection but did significantly increase survival time, which was associated with lower serum p26 viral core antigen levels, a lower virus burden in the cerebrospinal fluid (CSF), and lower CSF quinolinic acid levels than in untreated monkeys. Two of 5 infected, untreated monkeys developed motor impairment within 6 months following infection, whereas motor impairments did not occur in infected, zidovudine-treated monkeys until after the drug was discontinued. Zidovudine treatment was well tolerated by rhesus infants with minimal, transient side effects. These results demonstrate that zidovudine treatment significantly decreases virus load within the central nervous system (CNS) and delays the onset of CNS dysfunction and immune disease in rhesus monkeys perinatally infected with SIV. DE Animal Central Nervous System/*VIROLOGY Cerebrospinal Fluid/*VIROLOGY CD4-CD8 Ratio CD4-Positive T-Lymphocytes/IMMUNOLOGY CD8-Positive T-Lymphocytes/IMMUNOLOGY Death Female Macaca mulatta Male Motor Activity/DRUG EFFECTS Quinolinic Acid/CEREBROSPINAL FLUID Simian Acquired Immunodeficiency Syndrome/*DRUG THERAPY/PATHOLOGY/ PHYSIOPATHOLOGY SIV/*ISOLATION & PURIF/PHYSIOLOGY Time Factors Viral Core Proteins/BLOOD Zidovudine/BLOOD/*THERAPEUTIC USE JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).