Journal of NeuroVirology

, Volume 7, Issue 6, pp 542–547

Increased blood-brain barrier permeability in neuro-asymptomatic HIV-1-infected individuals—correlation with cerebrospinal fluid HIV-1 RNA and neopterin levels

  • L. M. Andersson
  • L. Hagberg
  • D. Fuchs
  • B. Svennerholm
  • M. Gisslén
Article

Abstract

The objective of this study was to assess the frequency of blood-brain barrier (BBB) impairment, as measured by the albumin ratio, in neuro-asymptomatic HIV-1-infected individuals without antiretroviral treatment and the correlation between BBB disruption and intrathecal immune activation and HIV-1 RNA levels. Serum and cerebrospinal fluid (CSF) albumin, neopterin, and HIV-1 RNA levels were analysed in 110 neuro-asymptomatic HIV-1-infected individuals at different stages of disease; 63 classified as CDC A, 25 as CDC B, and 22 as CDC C. Increased BBB permeability was found in 17 of 110 (15%) of HIV-1-infected individuals. This proportion was sustained throughout the CDC stages. The albumin ratio was correlated with the CSF neopterin levels (rs = 0.36, P < 0.001), the serum neopterin levels (rs = 0.37, P < 0.001), and the CSF HIV-1 RNA levels (rs = 0.26, P < 0.01), but not with the plasma HIV-1 RNA levels. The correlations between the albumin ratio and the CSF and serum neopterin concentrations and the CSF HIV-1 RNA levels indicate that immune activation and, possibly, intrathecal HIV-1 virus replication are important factors associated with increased BBB permeability in HIV-1 infection.

Keywords

HIV-1 cerebrospinal fluid neopterin HIV-1 RNA blood-brain barrier albumin ratio 

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Copyright information

© Taylor & Francis 2001

Authors and Affiliations

  • L. M. Andersson
    • 1
  • L. Hagberg
    • 1
  • D. Fuchs
    • 3
  • B. Svennerholm
    • 2
  • M. Gisslén
    • 1
  1. 1.Institute of Internal Medicine, Department of Infectious DiseasesSahlgrenska University HospitalGöteborgSweden
  2. 2.Department of Clinical VirologyGöteborg University, Sahlgrenska University HospitalGöteborgSweden
  3. 3.Institute of Medical Chemistry and Biochemistry, and Ludwig-Boltzman-Institute for AIDS ResearchUniversity of InnsbruckInnsbruckAustria

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