Evidence map›Paper›PMID 34331125›Full record

ReviewHuman genetics2022

Genetics, pathogenesis and therapeutic developments for Usher syndrome type 2.

M Stemerdink, B García-Bohórquez, R Schellens, G Garcia-Garcia, E Van Wijk, J M Millan

Open access · hybridAbstract readReview
PubMed Publisher
In one paragraph

Review in Human genetics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. medRxiv : the preprint server for health sciences · 2026
    Article
  5. Ciliary Defects in Inherited Retinal Diseases.Advanced genetics (Hoboken, N.J.) · 2026
    Review
  6. Article
  7. Article
  8. [Genetic and clinical phenotypic analysis of Usher syndrome-associated gene variants].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2025
    Article
  9. Article
  10. Review
  11. Improving personalised genetic counselling forMedizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2025
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Evaluation of mesenchymal stem cells as anFrontiers in cell and developmental biology · 2024
    Review
  17. Article
  18. Article
  19. Review
  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

6 authors at 3 institutions in 3 countries.

M Stemerdink *Department of Otorhinolaryngology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands.
B García-Bohórquez *Grupo de Investigación en Biomedicina Molecular, Celular y Genómica Health Research Institute La Fe, Valencia, Spain.
R Schellens *Department of Otorhinolaryngology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands.
G Garcia-Garcia *Grupo de Investigación en Biomedicina Molecular, Celular y Genómica Health Research Institute La Fe, Valencia, Spain.
E Van Wijk *Department of Otorhinolaryngology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands.
J M Millan *Grupo de Investigación en Biomedicina Molecular, Celular y Genómica Health Research Institute La Fe, Valencia, Spain. millan_jos@gva.es.ORCID http://orcid.org/0000-0002-7211-9129
Radboud University Nijmegen · NLCentre for Biomedical Network Research on Rare Diseases · ESEuropean Space Astronomy Centre · ES

Funding

Conselleria d'Educació, Investigació, Cultura i Esport PROMETEU/2018/135Foundation Fighting Blindness PPA-0517-0717-RADInstituto de Salud Carlos III PI19/00303The Dutch Organisation for Scientific Research 016.136.091
6 · The paper itself

Abstract

Usher syndrome (USH) is a rare, autosomal recessively inherited disorder resulting in a combination of sensorineural hearing loss and a progressive loss of vision resulting from retinitis pigmentosa (RP), occasionally accompanied by an altered vestibular function. More and more evidence is building up indicating that also sleep deprivation, olfactory dysfunction, deficits in tactile perception and reduced sperm motility are part of the disease etiology. USH can be clinically classified into three different types, of which Usher syndrome type 2 (USH2) is the most prevalent. In this review, we, therefore, assess the genetic and clinical aspects, available models and therapeutic developments for USH2. Mutations in USH2A, ADGRV1 and WHRN have been described to be responsible for USH2, with USH2A being the most frequently mutated USH-associated gene, explaining 50% of all cases. The proteins encoded by the USH2 genes together function in a dynamic protein complex that, among others, is found at the photoreceptor periciliary membrane and at the base of the hair bundles of inner ear hair cells. To unravel the pathogenic mechanisms underlying USH2, patient-derived cellular models and animal models including mouse, zebrafish and drosophila, have been generated that all in part mimic the USH phenotype. Multiple cellular and genetic therapeutic approaches are currently under development for USH2, mainly focused on preserving or partially restoring the visual function of which one is already in the clinical phase. These developments are opening a new gate towards a possible treatment for USH2 patients.

Indexed as

Retinitis PigmentosaUsher SyndromesAnimalsExtracellular Matrix ProteinsHumansMaleMiceMutationSperm MotilityZebrafishExtracellular Matrix Proteins

Identifiers

PMID34331125
OpenAlexW3184090896

What OpenQuestion holds

Textmetadata
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.