Evidence map›Paper›PMID 25066811›Full record

ArticleHuman mutation2014

Genetic and clinical analysis of ABCA4-associated disease in African American patients.

Jana Zernant, Frederick T Collison, Winston Lee, Gerald A Fishman, Kalev Noupuu, Bo Yuan, Carolyn Cai, James R Lupski, Lawrence A Yannuzzi, Stephen H Tsang and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Human mutation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 51 citations in OpenAlex.

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  5. Biallelic loss-of-function variants inJournal of medical genetics · 2025
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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

11 authors at 4 institutions in 1 country.

Jana ZernantDepartment of Ophthalmology, Columbia University, New York, New York.
Frederick T Collison
Winston Lee
Gerald A Fishman
Kalev Noupuu
Bo Yuan
Carolyn Cai
James R Lupski
Lawrence A Yannuzzi
Stephen H Tsang
Rando Allikmets
Columbia University · USBaylor College of Medicine · USLighthouse Guild · USVitreous Retina Macula Consultants of New York · US

Funding

Instrumentation, Fabrication, and Design CoreP30EY019007 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Xin Zhang · 2010 to 2026
$12.9M
Therapeutic approaches for ABCA4-associated disordersR24EY019861 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ALLIKMETS, RANDO L · 2011 to 2015
$7.2M
Toward mechanism- and gene-based therapies for retinal degenerationR01EY018213 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Stephen H Tsang · 2008 to 2026
$6.6M
Completing genetic analysis of the ABCA4 locusR01EY021163 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ALLIKMETS, RANDO L · 2011 to 2014
$2.4M
NEI NIH HHS EY019007NEI NIH HHS EY019861NEI NIH HHS EY021163NEI NIH HHS R01 EY018213NEI NIH HHS R01 EY021163NEI NIH HHS R24 EY019861
6 · The paper itself

Abstract

Autosomal recessive Stargardt disease (STGD1) is caused by hundreds of mutations in the ABCA4 gene, which are often specific to racial and ethnic groups. Here, we investigated the ABCA4 variation and their phenotypic expression in a cohort of 44 patients of African American descent, a previously under-characterized racial group. Patients were screened for mutations in ABCA4 by next-generation sequencing and array-comparative genomic hybridization (aCGH), followed by analyses for pathogenicity by in silico programs. Thorough ophthalmic examination was performed on all patients. At least two (expected) disease-causing alleles in the ABCA4 gene were identified in 27 (61.4%) patients, one allele in 11 (25%) patients, and no ABCA4 mutations were found in six (13.6%) patients. Altogether, 39 different disease-causing ABCA4 variants, including seven new, were identified on 65 (74%) chromosomes, most of which were unique for this racial group. The most frequent ABCA4 mutation in this cohort was c.6320G>A (p.(R2107H)), representing 19.3% of all disease-associated alleles. No large copy number variants were identified in any patient. Most patients reported later onset of symptoms. In summary, the ABCA4 mutation spectrum in patients of West African descent differs significantly from that in patients of European descent, resulting in a later onset and "milder" disease.

Indexed as

MutationAdultATP-Binding Cassette TransportersBlack or African AmericanComparative Genomic HybridizationDNA Mutational AnalysisElectroretinographyFemaleGenetic Predisposition to DiseaseHumansMacular DegenerationMaleMiddle AgedStargardt DiseaseUnited StatesWhite PeopleABCA4 protein, humanATP-Binding Cassette TransportersABCA4African Americanallelic heterogeneitynext-generation sequencingStargardt disease

Identifiers

PMID25066811
PMCPMC4283973
OpenAlexW2088456186

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.