Evidence map›Paper›PMID 23912038›Full record

ArticleNeuroscience2013

Hydrogen sulfide attenuates neurodegeneration and neurovascular dysfunction induced by intracerebral-administered homocysteine in mice.

P K Kamat, A Kalani, S Givvimani, P B Sathnur, S C Tyagi, N Tyagi

Abstract read
In one paragraph

Article in Neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
8.1field-weighted citation impact, top 2% 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

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Influence of homocysteine on regulating immunothrombosis: mechanisms and therapeutic potential in management of infections.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Advances of HAntioxidants (Basel, Switzerland) · 2023
    Review
  17. Article
  18. Review
  19. Article
  20. Hydrogen Sulfide (HCurrent neuropharmacology · 2022
    Review

24 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

P K KamatDepartment of Physiology and Biophysics, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
A Kalani
S Givvimani
P B Sathnur
S C Tyagi
N Tyagi
University of Louisville · US

Funding

Mechanisms of Mitochondrial Dysfunction in Brain VasculatureR01HL107640 · NHLBI · UNIVERSITY OF LOUISVILLE · PI TYAGI, NEETU · 2012 to 2016
$1.8M
Mechanisms of Cerebral Vascular RemodelingR01NS051568 · NINDS · UNIVERSITY OF LOUISVILLE · PI TYAGI, SURESH C. · 2007 to 2011
$1.6M
NHLBI NIH HHS HL107640-NTNHLBI NIH HHS R01 HL107640NINDS NIH HHS R01 NS051568
6 · The paper itself

Abstract

High levels of homocysteine (Hcy), known as hyperhomocysteinemia are associated with neurovascular diseases. H2S, a metabolite of Hcy, has potent anti-oxidant and anti-inflammatory activities; however, the effect of H2S has not been explored in Hcy (IC)-induced neurodegeneration and neurovascular dysfunction in mice. Therefore, the present study was designed to explore the neuroprotective role of H2S on Hcy-induced neurodegeneration and neurovascular dysfunction. To test this hypothesis we employed wild-type (WT) males ages 8-10 weeks, WT+artificial cerebrospinal fluid (aCSF), WT+Hcy (0.5 μmol/μl) intracerebral injection (IC, one time only prior to NaHS treatment), WT+Hcy+NaHS (sodium hydrogen sulfide, precursor of H2S, 30 μmol/kg, body weight). NaHS was injected i.p. once daily for the period of 7 days after the Hcy (IC) injection. Hcy treatment significantly increased malondialdehyde, nitrite level, acetylcholinestrase activity, tumor necrosis factor-alpha, interleukin-1 beta, glial fibrillary acidic protein, inducible nitric oxide synthase, endothelial nitric oxide synthase and decreased glutathione level indicating oxidative-nitrosative stress and neuroinflammation as compared to control and aCSF-treated groups. Further, increased expression of neuron-specific enolase, S100B and decreased expression of (post-synaptic density-95, synaptosome-associated protein-97) synaptic protein indicated neurodegeneration. Brain sections of Hcy-treated mice showed damage in the cortical area and periventricular cells. Terminal deoxynucleotidyl transferase-mediated, dUTP nick-end labeling-positive cells and Fluro Jade-C staining indicated apoptosis and neurodegeneration. The increased expression of matrix metalloproteinase (MMP) MMP9, MMP2 and decreased expression of tissue inhibitor of metalloproteinase (TIMP) TIMP-1, TIMP-2, tight junction proteins (zonula occulden 1) in Hcy-treated group indicate neurovascular remodeling. Interestingly, NaHS treatment significantly attenuated Hcy-induced oxidative stress, memory deficit, neurodegeneration, neuroinflammation and cerebrovascular remodeling. The results indicate that H2S is effective in providing protection against neurodegeneration and neurovascular dysfunction.

Indexed as

AnimalsBlood-Brain BarrierBlotting, WesternBrainGasotransmittersHomocysteineHydrogen SulfideInflammationInjections, IntraventricularMaleMiceNerve DegenerationOxidative StressReverse Transcriptase Polymerase Chain ReactionGasotransmittersHomocysteineHydrogen Sulfide5,5′-dithiobis-(2-nitrobenzoic acid)acetylcholinesteraseAChEaCSFADAlzheimer’s diseasesartificial cerebrospinal fluidBBBblood–brain barriercerebrovascular dysfunctionDIdiscrimination indexDTNBECMEDTAendothelial nitric oxide synthaseeNOSethylenediaminetetraacetic acidextracellular matrixFJCFluro Jade-CGFAPglial fibrillary acidic proteinglutathioneGSHH(2)SHcyHEHematoxylin and Eosinhomocysteinehorseradish peroxidaseHRPICILinducible nitric oxide synthaseiNOSinterleukinintracerebralmalondialdehydematrix metalloproteinasesMDAMMPneurodegenerationneuroinflammationneuron-specific enolaseNSEParkinson’s diseasePBSPDphenylmethylsulfonyl fluoridephosphate-buffered salinePMSFpolyvinylidene difluoridepost-synaptic density-95PSD95PVDFradio immunoprecipitation assayrecognition indexreverse transcription polymerase chain reactionRIRIPART-PCRSAP97synaptosome associated protein-97TBS-TTCAterminal deoxynucleotidyl transferase-mediated, dUTP nick-end labelingtight junction proteinsTIMPtissue inhibitor of metalloproteinasesTJPsTNFtrichloroacetic acidTris-buffered saline with Tween 20tumor necrosis factorTUNELwild typeWTZOzonula occuldens

Identifiers

PMID23912038
PMCPMC3905452
OpenAlexW2004897596

What OpenQuestion holds

Textmetadata
LicenceTDM
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.