Evidence map›Paper›PMID 32679798›Full record

ReviewInternational journal of molecular sciences2020

Zinc and Autophagy in Age-Related Macular Degeneration.

Janusz Blasiak, Elzbieta Pawlowska, Jan Chojnacki, Joanna Szczepanska, Cezary Chojnacki, Kai Kaarniranta

Open access · goldAbstract readReview
In one paragraph

Review in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  13. Protective effects of CY-09 and astaxanthin on NaIOInternational journal of ophthalmology · 2024
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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

6 authors at 3 institutions in 2 countries.

Janusz BlasiakDepartment of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland.ORCID 0000-0001-9539-9584
Elzbieta PawlowskaDepartment of Orthodontics, Medical University of Lodz, 92-216 Lodz, Poland.ORCID 0000-0002-5373-4783
Jan ChojnackiDepartment of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland.
Joanna SzczepanskaDepartment of Pediatric Dentistry, Medical University of Lodz, 92-216 Lodz, Poland.
Cezary ChojnackiDepartment of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland.
Kai KaarnirantaDepartment of Ophthalmology, University of Eastern Finland and Kuopio University Hospital, 70211 Kuopio, Finland.ORCID 0000-0003-2600-8679
Medical University of Lodz · PLUniversity of Eastern Finland · FIUniversity of Łódź · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zinc supplementation is reported to slow down the progression of age-related macular degeneration (AMD), but there is no general consensus on the beneficiary effect on zinc in AMD. As zinc can stimulate autophagy that is declined in AMD, it is rational to assume that it can slow down its progression. As melanosomes are the main reservoir of zinc in the retina, zinc may decrease the number of lipofuscin granules that are substrates for autophagy. The triad zinc-autophagy-AMD could explain some controversies associated with population studies on zinc supplementation in AMD as the effect of zinc on AMD may be modulated by genetic background. This aspect was not determined in many studies regarding zinc in AMD. Zinc deficiency induces several events associated with AMD pathogenesis, including increased oxidative stress, lipid peroxidation and the resulting lipofuscinogenesis. The latter requires autophagy, which is impaired. This is a vicious cycle-like reaction that may contribute to AMD progression. Promising results with zinc deficiency and supplementation in AMD patients and animal models, as well as emerging evidence of the importance of autophagy in AMD, are the rationale for future research on the role of autophagy in the role of zinc supplementation in AMD.

Indexed as

AutophagyAnimalsDietary SupplementsDisease ProgressionHumansMacular DegenerationOxidative StressRetinaZincZincage-related macular degenerationAMDautophagylipofuscinmelanosomeszinc

Identifiers

PMID32679798
PMCPMC7404247
OpenAlexW3042709114

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.