Evidence map›Paper›PMID 30830501›Full record

ArticleMetabolomics : Official journal of the Metabolomic Society2019

Quantitative metabolomic analysis of changes in the lens and aqueous humor under development of age-related nuclear cataract.

Vadim V Yanshole, Lyudmila V Yanshole, Olga A Snytnikova, Yuri P Tsentalovich

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In one paragraph

Article in Metabolomics : Official journal of the Metabolomic Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Metabolomics in Age-Related Macular Degeneration: A Systematic Review.Investigative ophthalmology & visual science · 2020
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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

4 authors at 1 institution in 1 country.

Vadim V YansholeInternational Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, Russia, 630090. Vadim.Yanshole@tomo.nsc.ru.ORCID 0000-0003-1512-3049
Lyudmila V YansholeInternational Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, Russia, 630090.ORCID 0000-0002-8265-6446
Olga A SnytnikovaInternational Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, Russia, 630090.ORCID 0000-0001-9089-1924
Yuri P TsentalovichInternational Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, Russia, 630090.ORCID 0000-0002-1380-3000
Novosibirsk State University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMetabolites are essential for the proper functioning of the eye lens, they either enter the lens from the aqueous humor (AH), or are synthesized in the lens epithelium. Antioxidants, osmolytes and UV filters are especially important for the lens protection, and their lack may cause the development of ophthalmic diseases.

objectivesComparison of the metabolomic compositions of lenses and AH taken from cataract patients with that taken from human cadavers without cataract can shed light onto molecular mechanisms underlying onset of age-related nuclear cataract.

methodsCombined use of

resultsThe concentrations of 86 metabolites were determined for four groups of samples, including lenses and AH from cataract patients and from human cadavers. In cataractous lens the most abundant metabolites are (in descending order): myo-inositol, lactate, acetate, glutamate, glutathione; in AH-lactate, glucose, glutamine, alanine, valine. The concentrations of the majority of metabolites in normal post-mortem samples of both lens and AH are higher than that in samples from the cataract patients.

conclusionsComparison of metabolite concentrations in lens and corresponding AH reveal that the most important for the lens protection metabolites are synthesized in the lens epithelial cells. The reduced levels of antioxidants, UV filters, and osmolytes were found in the cataractous lenses what cannot be explained by post-mortem changes in normal lens; that indicates that the age-related nuclear cataract development may originate from the dysfunction of the lens epithelial cells.

Indexed as

AgedAged, 80 and overAge FactorsAntioxidantsAqueous HumorCataractChromatography, High Pressure LiquidFemaleHumansLens, CrystallineMagnetic Resonance SpectroscopyMaleMass SpectrometryMetabolomicsMiddle AgedAntioxidantsAge-related nuclear cataractMass spectrometryNMR spectroscopyQuantitative metabolomics

Identifiers

PMID30830501
OpenAlexW2915897279

What OpenQuestion holds

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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.