Evidence map›Paper›PMID 33039401›Full record

ArticleOphthalmology2021

Autosomal Recessive Bestrophinopathy: Clinical Features, Natural History, and Genetic Findings in Preparation for Clinical Trials.

Giuseppe Casalino, Kamron N Khan, Monica Armengol, Genevieve Wright, Nikolas Pontikos, Michalis Georgiou, Andrew R Webster, Anthony G Robson, Parampal S Grewal, Michel Michaelides

Open access · hybridAbstract read
In one paragraph

Article in Ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.6field-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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Gene Therapy Strategies for the Treatment of Bestrophinopathies.International journal of molecular sciences · 2025
    Review
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. American journal of ophthalmology case reports · 2022
    Article
  18. Article
  19. Article
  20. Article
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

10 authors at 3 institutions in 2 countries.

Giuseppe CasalinoMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom; Oftalmico Hospital, ASST Fatebenefratelli Sacco, Milan, Italy.
Kamron N KhanLeeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.
Monica ArmengolGuy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom.
Genevieve WrightMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom.
Nikolas PontikosMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom.
Michalis GeorgiouMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom.
Andrew R WebsterMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom.
Anthony G RobsonMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom.
Parampal S GrewalMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom.
Michel MichaelidesMoorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, University College London, London, United Kingdom. Electronic address: michel.michaelides@ucl.ac.uk.
Moorfields Eye Hospital NHS Foundation Trust · GBLeeds Teaching Hospitals NHS Trust · GBSt Thomas' Hospital · GB

Funding

Wellcome TrustWellcome Trust 099173/Z/12/Z
6 · The paper itself

Abstract

purposeTo investigate the clinical course, genetic findings, and phenotypic spectrum of autosomal recessive bestrophinopathy (ARB) in a large cohort of children and adults.

designRetrospective case series.

participantsPatients with a detailed clinical phenotype consistent with ARB, biallelic likely disease-causing sequence variants in the BEST1 gene, or both identified at a single tertiary referral center.

methodsReview of case notes, retinal imaging (color fundus photography, fundus autofluorescence, OCT), electrophysiologic assessment, and molecular genetic testing.

main outcome measuresVisual acuity (VA), retinal imaging, and electrophysiologic changes over time.

resultsFifty-six eyes of 28 unrelated patients were included. Compound heterozygous variants were detected in most patients (19/27), with 6 alleles recurring in apparently unrelated individuals, the most common of which was c.422G→A, p.(Arg141His; n = 4 patients). Mean presenting VA was 0.52 ± 0.36 logarithm of the minimum angle of resolution (logMAR), and final VA was 0.81 ± 0.75 logMAR (P = 0.06). The mean rate of change in VA was 0.05 ± 0.13 logMAR/year. A significant change in VA was detected in patients with a follow-up of 5 years or more (n = 18) compared with patients with a follow-up of 5 years or less (n = 10; P = 0.001). Presence of subretinal fluid and vitelliform material were early findings in most patients, and this did not change substantially over time. A reduction in central retinal thickness was detected in most eyes (80.4%) over the course of follow-up. Many patients (10/26) showed evidence of generalized rod and cone system dysfunction. These patients were older (P < 0.001) and had worse VA (P = 0.02) than those with normal full-field electroretinography results.

conclusionsAlthough patients with ARB are presumed to have no functioning bestrophin channels, significant phenotypic heterogeneity is evident. The clinical course is characterized by a progressive loss of vision with a slow rate of decline, providing a wide therapeutic window for anticipated future treatment strategies.

Indexed as

AdolescentAdultBestrophinsChildChild, PreschoolClinical Trials as TopicCone-Rod DystrophiesElectrophysiologyEye Diseases, HereditaryFemaleGenes, RecessiveHumansMaleMiddle AgedMolecular BiologyOptical ImagingBestrophinsAutosomal recessive bestrophinopathyBEST1ElectrophysiologyGene therapyGeneticsRetinal imaging

Identifiers

PMID33039401
PMCPMC8062850
OpenAlexW3092525480

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.