Evidence map›Paper›PMID 30003355›Full record

Observational studyJapanese journal of ophthalmology2018

Frequencies of human leukocyte antigen alleles and haplotypes among Japanese patients with age-related macular degeneration.

Seiji Takagi, Michiko Mandai, Yasuhiko Hirami, Sunao Sugita, Masayo Takahashi, Yasuo Kurimoto

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Japanese journal of ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 40% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Retinal stem cell transplantation: Balancing safety and potential.Progress in retinal and eye research · 2020
    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

6 authors at 2 institutions in 1 country.

Seiji TakagiDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan. tigerseiji@gmail.com.ORCID http://orcid.org/0000-0001-6267-1641
Michiko MandaiDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
Yasuhiko HiramiDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
Sunao SugitaDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
Masayo TakahashiDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
Yasuo KurimotoDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
RIKEN Center for Biosystems Dynamics Research · JPToho University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStem cell therapy is a potential treatment for retinal disorders. We are currently exploring treating HLA matched patients of age-related macular degeneration (AMD) by using allogenic retinal pigment epithelium cells derived from induced pluripotent stem cells (iPS-RPE) from human leukocyte antigen (HLA) homozygote donors. The purpose of this study was to investigate the frequency of HLA class I and II alleles and haplotypes in Japanese patients with AMD. STUDY

designCross-sectional observation clinical study.

methodsA total of 138 consecutive patients diagnosed with neovascular AMD (mean age, 76.0 ± 7.8 years, 105 men) and 300 controls were included in the study. The frequencies of HLA-A, -B, -C, -DRB1, -DQB1, and -DPB1 alleles were determined using illumina MiSeq platform. Frequencies of HLA alleles at six loci in patients with AMD were compared with those of the controls.

resultsThe alleles with the highest prevalence at each locus were A*24:02 (29.7%), B*52:01 (15.5%), C*12:02 (16.1%), DRB1*09:01 (19.1%), DQB1*06:01 (23.2%), and DPB1* 05:01 (40.5%). There were no significant associations between the HLA alleles and AMD. The most common haplotype was A*24:02-B*52:01-C*12:02-DRB1*15:02-DQB1*06:01-DPB1*09:01, with a 9.8% genetic frequency among all haplotypes, detected in 18.8% of the patients.

conclusionThe genotype of HLA in patients with AMD was not different from that in the Japanese control population. Thus, therapy with iPS-RPEof the most frequent HLA haplotype could be a feasible alternative for AMD in a wider population.

Indexed as

Visual AcuityAgedAllelesCross-Sectional StudiesFemaleGene FrequencyGenotypeHaplotypesHLA AntigensHumansIncidenceJapanMaleRetinal Pigment EpitheliumStem Cell TransplantationWet Macular DegenerationHLA AntigensAge-related macular degenerationHaplotype frequencyHuman leukocyte antigenInduced pluripotent stem cellsJapan

Identifiers

PMID30003355
OpenAlexW2822378627

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.