Evidence map›Paper›PMID 33494373›Full record

ArticleInternational journal of molecular sciences2021

Tryptophan Pathway Abnormalities in a Murine Model of Hereditary Glaucoma.

Michal Fiedorowicz, Tomasz Choragiewicz, Waldemar A Turski, Tomasz Kocki, Dominika Nowakowska, Kamila Wertejuk, Agnieszka Kamińska, Teresio Avitabile, Marlena Wełniak-Kaminska, Pawel Grieb and 3 more

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed, 16 citations in OpenAlex.

  1. Pyrroloquinoline Quinone and NADPharmaceuticals (Basel, Switzerland) · 2026
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  7. Efficacy of Continuous-Wave Transscleral Cyclophotocoagulation Post-Pars Plana Vitrectomy in Glaucoma Patients: A Retrospective Study from Poland.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Article
  8. Article
  9. Article
  10. Decoding the Complex Crossroad of Tryptophan Metabolic Pathways.International journal of molecular sciences · 2022
    Article
  11. Article
  12. Review
  13. 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

13 authors at 5 institutions in 3 countries.

Michal FiedorowiczMossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland.ORCID 0000-0001-5755-3608
Tomasz ChoragiewiczDepartment of General Ophthalmology, Medical University of Lublin, 20-079 Lublin, Poland.
Waldemar A TurskiDepartment of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-079 Lublin, Poland.ORCID 0000-0002-5805-5106
Tomasz KockiDepartment of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-079 Lublin, Poland.
Dominika NowakowskaDepartment of General Ophthalmology, Medical University of Lublin, 20-079 Lublin, Poland.ORCID 0000-0002-1200-563X
Kamila WertejukDepartment of General Ophthalmology, Medical University of Lublin, 20-079 Lublin, Poland.
Agnieszka KamińskaFaculty of Medical Sciences, Collegium Medicum, Cardinal Stefan Wyszyński University, 01-815 Warsaw, Poland.
Teresio AvitabileDepartment of Ophthalmology, University of Catania, 95123 Catania, Italy.
Marlena Wełniak-KaminskaMossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland.
Pawel GriebMossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland.ORCID 0000-0002-6983-7947
Sandrine ZweifelDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Robert RejdakDepartment of General Ophthalmology, Medical University of Lublin, 20-079 Lublin, Poland.ORCID 0000-0003-3321-2723
Mario Damiano ToroDepartment of General Ophthalmology, Medical University of Lublin, 20-079 Lublin, Poland.ORCID 0000-0001-7152-2613
Medical University of Lublin · PLMossakowski Medical Research Institute, Polish Academy of Sciences · PLCardinal Stefan Wyszynski University in Warsaw · PLUniversity of Catania · ITUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt has been shown that a possible pathogenetic mechanism of neurodegeneration in the mouse model of glaucoma (DBA/2J) may be an alteration of kynurenic acid (KYNA) in the retina. This study aimed to verify the hypothesis that alterations of tryptophan (TRP) metabolism in DBA/2J mice is not limited to the retina.

methodsSamples of the retinal tissue and serum were collected from DBA/2J mice (6 and 10 months old) and control C57Bl/6 mice of the same age. The concentration of TRP, KYNA, kynurenine (KYN), and 3-hydroxykynurenine (3OH-K) was measured by HPLC. The activity of indoleamine 2,3-dioxygenase (IDO) was also determined as a KYN/TRP ratio.

resultsTRP, KYNA, L-KYN, and 3OH-K concentration were significantly lower in the retinas of DBA/2J mice than in C57Bl/6 mice. 3OH-K concentration was higher in older mice in both strains. Serum TRP, L-KYN, and KYNA concentrations were lower in DBA/2J than in age-matched controls. However, serum IDO activity did not differ significantly between compared groups and strains.

conclusionsAlterations of the TRP pathway seem not to be limited to the retina in the murine model of hereditary glaucoma.

Indexed as

Metabolic Networks and PathwaysAnimalsBiomarkersDisease Models, AnimalDisease SusceptibilityGenetic Diseases, InbornGlaucomaKynurenic AcidKynurenineMagnetic Resonance ImagingMiceRetinaSpecies SpecificityTryptophan3-hydroxykynurenineBiomarkersKynurenic AcidKynurenineTryptophanDBA/2Jglaucomakynurenine pathwayretina

Identifiers

PMID33494373
PMCPMC7865582
OpenAlexW3122924193

What OpenQuestion holds

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Registered trials

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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.