Electroretinographic Assessment in Joubert Syndrome: A Suggested Objective Method to Evaluate the Effectiveness of Future Targeted Treatment.
Abnormalities, Multiple
/ diagnosis
Adolescent
Cerebellum
/ abnormalities
Child
Child, Preschool
Electroretinography
/ methods
Eye Abnormalities
/ diagnosis
Female
Healthy Volunteers
Humans
Italy
Kidney Diseases, Cystic
/ diagnosis
Male
Prospective Studies
Retina
/ abnormalities
Visual Acuity
/ physiology
Electroretinogram
Joubert syndrome
Ophthalmology
Retinal dystrophy
Journal
Advances in therapy
ISSN: 1865-8652
Titre abrégé: Adv Ther
Pays: United States
ID NLM: 8611864
Informations de publication
Date de publication:
09 2020
09 2020
Historique:
received:
03
06
2020
pubmed:
17
7
2020
medline:
2
3
2021
entrez:
17
7
2020
Statut:
ppublish
Résumé
Joubert syndrome (JS) is an autosomal recessive disorder characterized by a congenital malformation of the mid-hindbrain and a large spectrum of clinical features including congenital retinal dystrophy. The function of different retinal elements (rod, cone, bipolar cells) can be objectively evaluated by electroretinogram (ERG) recordings. Our work aims to evaluate the retinal function (by ERG recordings) in patients with JS with or without congenital retinal dystrophy. In addition, since clinical trials should be performed in the near future in JS, our results could provide information about the possible usefulness of ERG recordings in the assessment of the efficacy of treatments targeted to improve the retinal involvement. In this observational and prospective study, 24 children with genetic identification for JS (mean age 10.75 ± 6.59 years) and 25 healthy age-similar normal control subjects (control group, mean age 10.55 ± 3.76 years) were enrolled. On the basis of the presence/absence of retinal dystrophy at fundus examination, patients with JS were divided into two groups: patients with JS with retinal dystrophy (16 children, mean age 11.00 ± 6.74 years, providing 16 eyes; JS-RD group) and patients with JS without retinal dystrophy (8 children, mean age 10.50 ± 6.45 years, providing 8 eyes; JS-NRD group). In patients with JS and controls, visual acuity (VA), dark-adapted, light-adapted, and 30-Hz flicker ERGs were performed according to International Society for Clinical Electrophysiology of Vision (ISCEV) standard protocols. When compared to controls, patients in the JS-RD and JS-NRD groups showed significant abnormalities of the values of dark-adapted, light-adapted, and 30-Hz flicker ERG parameters. The ERG and VA changes were not significantly correlated. Our results suggest that a dysfunction of photoreceptors and bipolar cells occurs in patients with JS with or without retinal dystrophy. The retinal impairment can be detected by ERG recordings and this method should be proposed to evaluate the effectiveness of adequate treatment targeted to improve the retinal impairment in patients with JS.
Identifiants
pubmed: 32671685
doi: 10.1007/s12325-020-01432-9
pii: 10.1007/s12325-020-01432-9
pmc: PMC7444391
doi:
Types de publication
Comparative Study
Journal Article
Observational Study
Langues
eng
Pagination
3827-3838Références
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