Retinitis Pigmentosa Associated with EYS Gene Mutations: Disease Severity Staging and Central Retina Atrophy

Giorgio Placidi, Paolo Enrico Maltese, Maria Cristina Savastano, Elena D’Agostino, Valentina Cestrone, Matteo Bertelli, Pietro Chiurazzi, Martina Maceroni, Angelo Maria Minnella, Lucia Ziccardi, Vincenzo Parisi, Stanislao Rizzo, Benedetto Falsini

Risultato della ricerca: Contributo in rivistaArticolo in rivista

Abstract

Background. Eyes shut homolog (EYS) gene mutations are estimated to affect at least 5% of patients with autosomal recessive retinitis pigmentosa. Since there is no mammalian model of human EYS disease, it is important to investigate its age-related changes and the degree of central retinal impairment. Methods. A cohort of EYS patients was studied. They underwent full ophthalmic examination as well as assessment of retinal function and structure, by full-field and focal electroretinograms (ERGs) and spectral domain optical coherence tomography (OCT), respectively. The disease severity stage was determined by the RP stage scoring system (RP-SSS). Central retina atrophy (CRA) was estimated from the automatically calculated area of the sub-retinal pigment epithelium (RPE) illumination (SRI). Results. The RP-SSS was positively correlated with age, showing an advanced severity score (>= 8) at an age of 45 and a disease duration of 15 years. The RP-SSS was positively correlated with the CRA area. LogMAR visual acuity and ellipsoid zone width, but not ERG, were correlated with CRA. Conclusions. In EYS-related disease, the RP-SSS showed advanced severity at a relative early age and was correlated with the central area of the RPE/photoreceptor atrophy. These correlations may be relevant in view of therapeutic interventions aimed at rescuing rods and cones in EYS-retinopathy.
Lingua originaleEnglish
pagine (da-a)850-N/A
RivistaDiagnostics
Volume13
DOI
Stato di pubblicazionePubblicato - 2023

Keywords

  • EYS gene
  • OCT
  • disease staging
  • subretinal illumination
  • multimodal imaging
  • retinal degeneration
  • electroretinography

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