Evidence map›Paper›PMID 19194884›Full record

Trial reportAnnals of neurology2009

Taurine deficiency is a cause of vigabatrin-induced retinal phototoxicity.

Firas Jammoul, Qingping Wang, Rima Nabbout, Caroline Coriat, Agnès Duboc, Manuel Simonutti, Elisabeth Dubus, Cheryl M Craft, Wen Ye, Stephen D Collins and 4 more

Open access · greenAbstract readClinical Trial
In one paragraph

Trial report in Annals of neurology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
15.0field-weighted citation impact, top 1% 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

44 citing papers in PubMed, 113 citations in OpenAlex.

  1. Review
  2. Article
  3. Pyroglutamate acidosis 2023. A review of 100 cases.Clinical medicine (London, England) · 2024
    Review
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  17. Review
  18. Neuroglobin Can Prevent or Reverse Glaucomatous Progression in DBA/2J Mice.Molecular therapy. Methods & clinical development · 2017
    Article
  19. Article
  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

14 authors at 9 institutions in 3 countries.

Firas JammoulInstitut National de la Sante et de la Recherche Médicale, U592, Institut de la Vision, Paris, France.
Qingping Wang
Rima Nabbout
Caroline Coriat
Agnès Duboc
Manuel Simonutti
Elisabeth Dubus
Cheryl M Craft
Wen Ye
Stephen D Collins
Olivier Dulac
Catherine Chiron
José A Sahel
Serge Picaud
Institut de la Vision · FRDélégation Paris 5 · FRSorbonne Université · FRAssistance Publique – Hôpitaux de Paris · FRFudan University · CNHuashan Hospital · CNInserm · FRNanotherapeutics (United States) · USUniversity of Southern California · US

Funding

VISION RESEARCHP30EY003040 · NEI · DOHENY EYE INSTITUTE · PI SUN, DEMING · 1985 to 2013
$7.0M
Mechanisms of Cone Pigment DeactivationR01EY015851 · NEI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI CRAFT, CHERYL MAE · 2005 to 2009
$1.8M
NEI NIH HHS EY015851NEI NIH HHS EY03040NEI NIH HHS P30 EY003040NEI NIH HHS R01 EY015851
6 · The paper itself

Abstract

objectiveAlthough vigabatrin irreversibly constricts the visual field, it remains a potent therapy for infantile spasms and a third-line drug for refractory epilepsies. In albino animals, this drug induces a reduction in retinal cell function, retinal disorganization, and cone photoreceptor damage. The objective of this study was to investigate the light dependence of the vigabatrin-elicited retinal toxicity and to screen for molecules preventing this secondary effect of vigabatrin.

methodsRats and mice were treated daily with 40 and 3mg vigabatrin, respectively. Retinal cell lesions were demonstrated by assessing cell function with electroretinogram measurements, and quantifying retinal disorganization, gliosis, and cone cell densities.

resultsVigabatrin-elicited retinal lesions were prevented by maintaining animals in darkness during treatment. Different mechanisms including taurine deficiency were reported to produce such phototoxicity; we therefore measured amino acid plasma levels in vigabatrin-treated animals. Taurine levels were 67% lower in vigabatrin-treated animals than in control animals. Taurine supplementation reduced all components of retinal lesions in both rats and mice. Among six vigabatrin-treated infants, the taurine plasma level was found to be below normal in three patients and undetectable in two patients.

interpretationThese results indicate that vigabatrin generates a taurine deficiency responsible for its retinal phototoxicity. Future studies will investigate whether cotreatment with taurine and vigabatrin can limit epileptic seizures without inducing the constriction of the visual field. Patients taking vigabatrin could gain immediate benefit from reduced light exposures and dietetic advice on taurine-rich foods.

Indexed as

Amino AcidsAnalysis of VarianceAnimalsChild, PreschoolDisease Models, AnimalDose-Response Relationship, DrugElectroretinographyEnzyme InhibitorsGlial Fibrillary Acidic ProteinHumansIndolesInfantMicePhotosensitivity DisordersRatsRetinaAmino AcidsDAPIEnzyme InhibitorsGlial Fibrillary Acidic ProteinIndolesTaurineVigabatrin

Identifiers

PMID19194884
PMCPMC2665303
OpenAlexW2058661047

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.