Evidence map›Paper›PMID 34942960›Full record

ArticleAntioxidants (Basel, Switzerland)2021

Lutein and Zeaxanthin Distribution in the Healthy Macula and Its Association with Various Demographic Factors Examined in Pseudophakic Eyes.

Akira Obana, Yuko Gohto, Ryo Asaoka, Werner Gellermann, Paul S Bernstein

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 38% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
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  4. Assessing the role of macular pigment optical volume in non-neovascular age-related macular degeneration: associations with rod-mediated dark adaptation and disease progression.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Observational
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  10. Observational
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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

5 authors at 4 institutions in 2 countries.

Akira ObanaDepartment of Ophthalmology, Seirei Hamamatsu General Hospital, Hamamatsu City 430-8558, Shizuoka, Japan.ORCID 0000-0001-7930-3618
Yuko GohtoDepartment of Ophthalmology, Seirei Hamamatsu General Hospital, Hamamatsu City 430-8558, Shizuoka, Japan.
Ryo AsaokaDepartment of Ophthalmology, Seirei Hamamatsu General Hospital, Hamamatsu City 430-8558, Shizuoka, Japan.
Werner GellermannLongevity Link Corporation, Salt Lake City, UT 84108, USA.
Paul S BernsteinDepartment of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, Salt Lake City, UT 84132, USA.ORCID 0000-0002-4228-7666
Seirei Hamamatsu General Hospital · JPHamamatsu University School of Medicine · JPLongevity Biotech (United States) · USUniversity of Utah · US

Funding

University of Utah, Core Vision Research GrantP30EY014800 · NEI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Bryan William Jones · 2005 to 2026
$14.6M
Biochemistry and Pharmacology of the Macular CarotenoidsR01EY011600 · NEI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI BERNSTEIN, PAUL STEVEN · 2004 to 2025
$7.7M
BIOCHEMISTRY AND PHARMACOLOGY OF THE MACULAR CAROTENOIDSR29EY011600 · NEI · UNIVERSITY OF UTAH · PI BERNSTEIN, PAUL STEVEN · 1997 to 2001
$209k
grant AIP acceleration research from the Japan Science and Technology Agency grantMinistry of Education, Culture, Sports, Science and Technology of Japan 19H01114, 18KK0253, 20K09784National Eye Institute grants EY-11600, EY-14800NEI NIH HHS P30 EY014800NEI NIH HHS R01 EY011600The Translational Research program; Strategic Promotion for practical application of Innovative medical Technology (TR-SPRINT) from the Japan Agency for Medical Research and Development (AMED) grant
6 · The paper itself

Abstract

The macular pigment consisting of lutein (L) and zeaxanthin (Z) protects photoreceptors via its antioxidative and barrier activities. This study aimed to determine L and Z distribution in the healthy macula and their association with various demographic factors. Macular pigment optical density (MPOD) was measured using fundus autofluorescence spectroscopy in 352 pseudophakic eyes with no fundus diseases. Pseudophakia was chosen to avoid the influence of cataract in the measurement of fundus autofluorescence. The mean patient age was 72.3 ± 8.6 years. MPOD was analyzed separately in three zones, i.e., A: a central area within a radius of 0.5°, mainly containing Z; B: a ring area with radii from 0.5° to 1.3°, containing Z and L; C: a ring area with radii from 1.3° to 9°, containing L. Multivariate analyses were performed with MPOD as the dependent variable and sex, supplement intake, smoking habits, glaucoma, diabetes, age, body mass index (BMI), skin carotenoid levels, retinal thickness, retinal volume, axial length as the independent variables. The mean total MPOD volume within 9° eccentricity was 20,121 ± 6293. Age was positively associated with MPOD in all zones. Supplement and BMI were positively and negatively associated with MPOD in zones B and C. Smoking was negatively associated with MPOD in zone A. This study revealed the standard MP values of aged Japanese, which resulted to be higher than the previously reported values in other races. Age was found to have a positive association with MP values. L in the outer foveola was affected by BMI and supplements, but Z in the foveola was not. The amount of Z in the Müller cell cone may not be changed easily by factors such as hunger and satiety in the context of preservation of homeostasis in the human body, but tobacco had a negative effect on Z.

Indexed as

agebody mass indexfundus autofluorescence spectroscopymacular pigmentpseudophakiaskin carotenoid levelssmoking

Identifiers

PMID34942960
PMCPMC8698861
OpenAlexW3215106609

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.