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

被引:58
作者
Andersson L.M. [1 ]
Hagberg L. [1 ]
Fuchs D. [1 ]
Svennerholm B. [1 ]
Gisslén M. [1 ]
机构
[1] Department of Infectious Diseases, Sahlgrenska University Hospital, Institute of Internal Medicine
关键词
Albumin ratio; Blood-brain barrier; Cerebrospinal fluid; HIV-1; RNA; Neopterin;
D O I
10.1080/135502801753248123
中图分类号
学科分类号
摘要
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.
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页码:542 / 547
页数:5
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