{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T22:19:34Z","timestamp":1792016374161,"version":"4.4.0"},"reference-count":66,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,1,22]],"date-time":"2023-01-22T00:00:00Z","timestamp":1674345600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004329","name":"Javna Agencija za Raziskovalno Dejavnost RS","doi-asserted-by":"publisher","award":["ARRS J3-1750"],"award-info":[{"award-number":["ARRS J3-1750"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Genes"],"abstract":"<jats:p>Variants in WDR19 (IFT144) have been implicated as another possible cause of Stargardt disease. The purpose of this study was to compare longitudinal multimodal imaging of a WDR19-Stargardt patient, harboring p.(Ser485Ile) and a novel c.(3183+1_3184-1)_(3261+1_3262-1)del variant, with 43 ABCA4-Stargardt patients. Age at onset, visual acuity, Ishihara color vision, color fundus, fundus autofluorescence (FAF), spectral-domain optical coherence tomography (OCT) images, microperimetry and electroretinography (ERG) were evaluated. First symptom of WDR19 patient was nyctalopia at the age of 5 years. After the age of 18 years, OCT showed hyper-reflectivity at the level of the external limiting membrane\/outer nuclear layer. There was abnormal cone and rod photoreceptor function on ERG. Widespread fundus flecks appeared, followed by perifoveal photoreceptor atrophy. Fovea and peripapillary retina remained preserved until the latest exam at 25 years of age. ABCA4 patients had median age of onset at 16 (range 5\u201360) years and mostly displayed typical Stargardt triad. A total of 19% had foveal sparing. In comparison to ABCA4 patients, the WDR19 patient had a relatively large foveal preservation and severe rod photoreceptor impairment; however, it was still within the ABCA4 disease spectrum. Addition of WDR19 in the group of genes producing phenocopies of Stargardt disease underlines the importance of genetic testing and may help to understand its pathogenesis.<\/jats:p>","DOI":"10.3390\/genes14020291","type":"journal-article","created":{"date-parts":[[2023,1,25]],"date-time":"2023-01-25T03:21:54Z","timestamp":1674616914000},"page":"291","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Stargardt-like Clinical Characteristics and Disease Course Associated with Variants in the WDR19 Gene"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1982-7572","authenticated-orcid":false,"given":"Jana","family":"Sajovic","sequence":"first","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrej","family":"Megli\u010d","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marija","family":"Volk","sequence":"additional","affiliation":[{"name":"Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana, \u0160lajmerjeva 4, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ale\u0161","family":"Maver","sequence":"additional","affiliation":[{"name":"Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana, \u0160lajmerjeva 4, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martina","family":"Jarc-Vidmar","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"},{"name":"Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marko","family":"Hawlina","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"},{"name":"Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana","family":"Fakin","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"},{"name":"Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"100861","DOI":"10.1016\/j.preteyeres.2020.100861","article-title":"Clinical spectrum, genetic complexity and therapeutic approaches for retinal disease caused by ABCA4 mutations","volume":"79","author":"Cremers","year":"2020","journal-title":"Prog. 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