{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T11:41:31Z","timestamp":1785325291390,"version":"3.55.0"},"reference-count":76,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,2,14]],"date-time":"2023-02-14T00:00:00Z","timestamp":1676332800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Slovenian Research Agency","award":["ARRS J3-1750"],"award-info":[{"award-number":["ARRS J3-1750"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Genetic characteristics and a long-term clinical follow-up of 18 Slovenian retinitis pigmentosa GTPase regulator (RPGR) patients from 10 families with retinitis pigmentosa (RP) or cone\/cone-rod dystrophy (COD\/CORD) are reported. RP (eight families) was associated with two already known (p.(Ser407Ilefs*46) and p.(Glu746Argfs*23)) and five novel variants (c.1245+704_1415-2286del, p.(Glu660*), p.(Ala153Thr), c.1506+1G&gt;T, and p.(Arg780Serfs*54)). COD (two families) was associated with p.(Ter1153Lysext*38). The median age of onset in males with RP (N = 9) was 6 years. At the first examination (median age of 32 years), the median best corrected visual acuity (BCVA) was 0.30 logMAR, and all patients had a hyperautofluorescent ring on fundus autofluorescence (FAF) encircling preserved photoreceptors. At the last follow-up (median age of 39 years), the median BCVA was 0.48 logMAR, and FAF showed ring constriction transitioning to patch in 2\/9. Among females (N = 6; median age of 40 years), two had normal\/near-normal FAF, one had unilateral RP (male pattern), and three had a radial and\/or focal pattern of retinal degeneration. After a median of 4 years (4\u201321) of follow-up, 2\/6 exhibited disease progression. The median age of onset in males with COD was 25 years. At first examination (median age of 35 years), the median BCVA was 1.00 logMAR, and all patients had a hyperautofluorescent FAF ring encircling foveal photoreceptor loss. At the last follow-up (median age of 42 years), the median BCVA was 1.30 logMAR, and FAF showed ring enlargement. The majority of the identified variants (75%; 6\/8) had not been previously reported in other RPGR cohorts, which suggested the presence of distinct RPGR alleles in the Slovenian population.<\/jats:p>","DOI":"10.3390\/ijms24043840","type":"journal-article","created":{"date-parts":[[2023,2,15]],"date-time":"2023-02-15T02:31:23Z","timestamp":1676428283000},"page":"3840","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Genetic Characteristics and Long-Term Follow-Up of Slovenian Patients with RPGR Retinal Dystrophy"],"prefix":"10.3390","volume":"24","author":[{"given":"Vlasta","family":"Hadalin","sequence":"first","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ma\u0161a","family":"Buscarino","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1982-7572","authenticated-orcid":false,"given":"Jana","family":"Sajovic","sequence":"additional","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":"Martina","family":"Jarc-Vidmar","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 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"}],"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":"Ana","family":"Fakin","sequence":"additional","affiliation":[{"name":"Eye Hospital, University Medical Centre Ljubljana, Grablovi\u010deva 46, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1038\/ng0596-35","article-title":"A gene (RPGR) with homology to the RCC1 guanine nucleotide exchange factor is mutated in X-linked retinitis pigmentosa (RP3)","volume":"13","author":"Meindl","year":"1996","journal-title":"Nat. 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