Evidence map›Paper›PMID 21756955›Full record

ArticleNeurochemistry international2012

HIV-1 gp120 induces antioxidant response element-mediated expression in primary astrocytes: role in HIV associated neurocognitive disorder.

Pichili Vijaya Bhaskar Reddy, Nimisha Gandhi, Thangavel Samikkannu, Zainulabedin Saiyed, Marisela Agudelo, Adriana Yndart, Pradnya Khatavkar, Madhavan P N Nair

Abstract read
In one paragraph

Article in Neurochemistry international, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

38 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. [SBi4211 alleviates gp120-induced central nervous system injuryNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2020
    Article
  14. Article
  15. Aging and Apolipoprotein E in HIV Infection.Journal of neurovirology · 2018
    Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. Redox Imbalance and Viral Infections in Neurodegenerative Diseases.Oxidative medicine and cellular longevity · 2016
    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

8 authors at 1 institution in 1 country.

Pichili Vijaya Bhaskar ReddyDepartment of Immunology, Institute of NeuroImmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.
Nimisha Gandhi
Thangavel Samikkannu
Zainulabedin Saiyed
Marisela Agudelo
Adriana Yndart
Pradnya Khatavkar
Madhavan P N Nair
Florida International University · US

Funding

Immunopathogenesis of HIV-1 Infection: Role of MethamphetamineR01DA021537 · NIDA · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2006 to 2010
$2.0M
Role of Cocaine in Neuro-AIDS by HIV 1B and C CladesR37DA025576 · NIDA · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2008 to 2012
$1.7M
Mechanisms of Neuro-AIDS by HIV 1B and C CladesR01MH085259 · NIMH · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2010 to 2014
$1.7M
NIDA NIH HHS R01 DA021537NIDA NIH HHS R01DA021537NIDA NIH HHS R37 DA025576NIDA NIH HHS R37DA025576NIMH NIH HHS R01 MH085259
6 · The paper itself

Abstract

HIV infection affects the central nervous system resulting in HIV associated neurocognitive disorder (HAND), which is characterized by depression, behavioral and motor dysfunctions. The HIV-1 viral envelope protein gp120 is known to induce the release of neurotoxic factors which lead to apoptotic cell death. Although the exact mechanisms involved in HIV-1 gp120-induced neurotoxicity are not completely understood, oxidative stress is suggested to play a vital role in the neuropathogenesis of HAND. Astrocytes represent major population of the non-neuronal cell type in the brain and play a critical role in the neuropathogenesis of HAND. Increased oxidative stress is known to induce nuclear factor erythroid derived 2-related factor 2 (Nrf2), a basic leucine zipper transcription factor which is known to regulate the antioxidant defensive mechanism. However, the role of Nrf2 in HAND has not been elucidated. We report that gp120 significantly upregulates Nrf2 in human astrocytes and is associated with stimulation of key antioxidant defensive enzymes Hemoxygenase (HO-1) and NAD(P)H dehydrogenase quinone1 (Nqo1). Pretreatment of the astrocytes with antioxidants or a specific calcium chelator BAPTA-AM, significantly blocked the upregulation of Nrf2, HO-1 and Nqo1. These results suggest a possible role of the intracellular calcium and oxidative stress in Nrf2 mediated antioxidant defense mechanism, which may have protective role in promoting cell survival.

Indexed as

Gene Expression Regulation, ViralAIDS Dementia ComplexAntioxidant Response ElementsAstrocytesCells, CulturedHIV Envelope Protein gp120HumansNF-E2-Related Factor 2Oxidative Stressgp120 protein, Human immunodeficiency virus 1HIV Envelope Protein gp120NFE2L2 protein, humanNF-E2-Related Factor 2

Identifiers

PMID21756955
PMCPMC3222741
OpenAlexW2000964459

What OpenQuestion holds

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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.