Evidence map›Paper›PMID 22448134›Full record

ReviewTheScientificWorldJournal2012

Blood-brain barrier abnormalities caused by HIV-1 gp120: mechanistic and therapeutic implications.

Jean-Pierre Louboutin, David S Strayer

Open access · goldAbstract readReview
In one paragraph

Review in TheScientificWorldJournal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
2.1field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Jean-Pierre LouboutinDepartment of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, 1020 Locust Street Room 255 Philadelphia, PA 19107, USA. jplouboutin@hotmail.com
David S Strayer
Thomas Jefferson University · US

Funding

Use of SV40 derived vectors to inhibit HIV 1 infectionP01AI048244 · NIAID · THOMAS JEFFERSON UNIVERSITY · PI STRAYER, DAVID S · 2000 to 2003
$3.3M
Targeting HIV infection of the cns using gene deliveryR01MH070287 · NIMH · THOMAS JEFFERSON UNIVERSITY · PI STRAYER, DAVID S · 2004 to 2008
$1.9M
PROTECTING CNS CELLS FROM HIV AND HIV-INDUCED INJURYR21MH069122 · NIMH · THOMAS JEFFERSON UNIVERSITY · PI STRAYER, DAVID S · 2003 to 2004
$314k
NIAID NIH HHS AI48244NIAID NIH HHS P01 AI048244NIMH NIH HHS MH69122NIMH NIH HHS MH70287NIMH NIH HHS R01 MH070287NIMH NIH HHS R21 MH069122
6 · The paper itself

Abstract

The blood-brain barrier (BBB) is compromised in many systemic and CNS diseases, including HIV-1 infection of the brain. We studied BBB disruption caused by HIV-1 envelope glycoprotein 120 (gp120) as a model. Exposure to gp120, whether acute [by direct intra-caudate-putamen (CP) injection] or chronic [using SV(gp120), an experimental model of ongoing production of gp120] disrupted the BBB, and led to leakage of vascular contents. Gp120 was directly toxic to brain endothelial cells. Abnormalities of the BBB reflect the activity of matrix metalloproteinases (MMPs). These target laminin and attack the tight junctions between endothelial cells and BBB basal laminae. MMP-2 and MMP-9 were upregulated following gp120-injection. Gp120 reduced laminin and tight junction proteins. Reactive oxygen species (ROS) activate MMPs. Injecting gp120 induced lipid peroxidation. Gene transfer of antioxidant enzymes protected against gp120-induced BBB abnormalities. NMDA upregulates the proform of MMP-9. Using the NMDA receptor (NMDAR-1) inhibitor, memantine, we observed partial protection from gp120-induced BBB injury. Thus, (1) HIV-envelope gp120 disrupts the BBB; (2) this occurs via lesions in brain microvessels, MMP activation and degradation of vascular basement membrane and vascular tight junctions; (3) NMDAR-1 activation plays a role in this BBB injury; and (4) antioxidant gene delivery as well as NMDAR-1 antagonists may protect the BBB.

Indexed as

Blood-Brain BarrierAnimalsBasement MembraneBrainCells, CulturedEndothelium, VascularGlutathione PeroxidaseGlutathione Peroxidase GPX1HIV-1HIV Envelope Protein gp120HumansMatrix MetalloproteinasesMicrovesselsOxidative StressReceptors, N-Methyl-D-AspartateSuperoxide DismutaseGlutathione PeroxidaseGlutathione Peroxidase GPX1HIV Envelope Protein gp120Matrix MetalloproteinasesReceptors, N-Methyl-D-AspartateSOD1 protein, humanSuperoxide DismutaseSuperoxide Dismutase-1

Identifiers

PMID22448134
PMCPMC3289936
OpenAlexW2010964235

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.