Cited by 78Retinal Development and DisordersGenetic and Kidney Cyst DiseasesRetinal Diseases and Treatments

Diagnostic Challenges in Retinitis Pigmentosa: Genotypic Multiplicity and Phenotypic Variability

Open access
Chang, Susie, Vaccarella, Leah, Olatunji, Sunday, Cebulla, Colleen, Christoforidis, John·2011·Current Genomics

Abstract

Retinitis pigmentosa (RP) is a heterogeneous group of inherited retinal disorders. Diagnosis can be challenging as more than 40 genes are known to cause non-syndromic RP and phenotypic expression can differ significantly resulting in variations in disease severity, age of onset, rate of progression, and clinical findings. We describe the clinical manifestations of RP, the more commonly known causative gene mutations, and the genotypic-phenotypic correlation of RP. Keywords: Electroretinography, Optical Coherence Tomography, Electro-Oculography, heterogeneity, Visual Acuity, genetic testing, genotype-phenotype correlation, phenotypic variation, clinical manifestation, heterogeneity, Retinitis pigmentosa

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.2174/138920211795860116

Cites

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The variety of characteristics seen in different diseases adds a layer of complexity to the diagnostic process.

    “the variety of characteristics seen in different diseases adds a layer of complexity to the diagnostic process [129,130].”

    From Toward Safer Diagnoses: A SEIPS-Based Narrative Review of Diagnostic Errors (2026) · cites this paper as [129]

    The Introduction says that RP has a vast differential diagnosis and that its broad range of clinical severity makes diagnosis challenging. This supports the point for retinitis pigmentosa, but the cited paper does not establish the broader claim across different diseases generally. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

The citation lists haven’t been fetched yet

References 77 · Cited by 78

Research works printed but not linked: 75

  1. [1]Pagon R Daiger S Retinitis Pigmentosa Overview GeneReviews. [updated 2005 Sep 16] [ http://www.ncbi.nlm.nih.gov/books/NBK1417/] 1993 University of Washington Seattle
  2. [2]Wang D Y Chan W M Tam P O S Baum L Lam D S C Chong K K L Fan B J Pang C P Gene mutations in retinitis pigmentosa and their clinical implications Clin. Chim. Acta 2005 351 5 16 15563868
  3. [3]Alexander K Fishman G Prolonged rod dark adaptation in retintis pigmentosa Br. J. Ophthalmol 1984 68 8 561 569 6743626 PMC1040413
  4. [4]Fitzke F Dark adaptation in retinal abnormalities Br. J. Ophthalmol 1994 78 426 0 8060922 PMC504813
  5. [5]Hamel C Retinitis pigmentosa Orphanet J. Rare Dis 2006 1 40 1 12 PMC1621055 17032466
  6. [6]Chan H Brown B Investigation of retinitis pigmentosa using the multifocal electroretinogram Ophthalmic Physiol. Opt 1998 18 4 335 350 9829106
  7. [7]Seeliger M Kretschmann U Apfelstedt E Ruther K Zrenner E Multifocal electroretinography in retinitis pigmentosa Am. J. Ophthalmol 1998 125 2 214 226 9467449
  8. [8]Janaky M Palffy A Deak A Szilagyi M Benedek G Multifocal ERG reveals several patterns of cone degeneration in retinitis pigmentosa with concentric narrowing of the visual field Invest. Ophthalmol. Vis. Sci 2007 48 1 383 389 17197558
  9. [9]Vingolo E Livani M Domanico D Mendonca R Rispoli E Optical coherence tomography and electro-oculogram abnormalities in X-linked retinitis pigmentosa Doc. Ophthalmol 2006 113 1 5 10 16955285
  10. [10]Rangaswamy N V Patel H M Locke K G Hood D C Birch D G A comparison of visual field sensitivity to photoreceptor thickness in retinitis pigmentosa Invest. Ophthalmol. Vis. Sci 2010 51 4213 4219 20220048 PMC2910646
  11. [11]Lupo S Grenga P L Vingolo E M Fourier-domain optical coherence tomography and microperimetry findings in retinitis pigmentosa Am. J. Ophthalmol 2011 151 106 111 21094934
  12. [12]Hajali M Fishman G A The prevalence of cystoid macular oedema on optical coherence tomography in retinitis pigmentosa patients without cystic changes on fundus examination Eye 2009 23 915 919 18425064
  13. [13]Hajali M Fishman G A Anderson R J The prevalence of cystoid macular oedema in retinitis pigmentosa patients determined by optical coherence tomography Br. J. Ophthalmol 2008 92 1065 68 18653601
  14. [15]Jayasundera T Branham K E H Othman M Rhoades W R Karoukis A J Khanna H Swaroop A Heckenlively J R RP2 phenotype and pathogenetic correlations in X-linked retinitis pigmentosa Arch. Ophthalmol 2010 128 915 923 20625056 PMC3392190
  15. [16]Melamud A Shen G-Q Chung D Xi Q Simpson E Li L Peachey N S Zegarra H Hagstrom S A Wang Q K Traboulsi EI Mapping a new genetic locus from X linked retinitis pigmentosa to Xq28 J. Med. Genet 2006 43 6 e27 0 16740911 PMC2593026
  16. [17]Collin R W J Safieh C Littink K W Shalev S A Garzozi H J Rizel L Abbasi A H Cremers F P M den Hollander A I Klevering B J Ben-Yosef T Mutations in C2ORF71 cause autosomal-recessive retinitis pigmentosa Am. J. Hum. Genet 2010 86 783 788 20398884 PMC2869006
  17. [18]Kajiwara K Berson E L Dryla T P Digenic retinitis pigmentosa due to mutations at the ulinked peripherin/RDS and ROM loci Science 1994 264 1604 1608 8202715
  18. [19]Hartong D T Dange M McGee T L Berson E L Dryja T P Colman R F Insights from retinitis pigmentosa into the roles of isocitrate dehydrogenases in the Krebs cycle Nat. Genet 2008 40 1230 1234 18806796 PMC2596605
  19. [20]Burgess R Millar I D Leroy B P Urquhart J E Fearon I M De Baere E Brown P D Robson A G Wrigh G A Kestelyn P Holder G E Webster A R Manson F D C Black G C Biallelic mutation of BEST1 causes a distinct retinopathy in humans Am. J. Hum. Genet 2008 82 19 31 18179881 PMC2253971
  20. [21]Bandah-Rozenfeld D Collin R W J Banin E van den Born L I Coene K L M Siemiatkowska A M Zelinger L Khan M I Lefeber D J Erdinest I Testa F Simonelli F Voesenek K Blokland E A W Strom T M Klaver C C W Qamar R den Hollande A I Mutations in IMPG2, encoding interphotoreceptor matrix proteoglycan 2, cause autosomal recessive retinitis pigmentosa Am. J. Hum. Genet 2010 87 199 208 20673862 PMC2917719
  21. [22]Dvir L Srour G Abu-Ras R Miller B Shalev S A Ben-Yosef T Autosomal-recessive early-onset retinitis pigmentosa caused by a mutation in PDE6G, the gene encoding the gamma subunit of rod cGMP phosphodiesterase Am. J. Hum. Genet 2010 87 258 264 20655036 PMC2917712
  22. [23]Nevet M J Shalev S A Zlotogora J Mazzawi N Ben-Yosef T Identification of a prevalent founder mutation in an Israeli Muslim Arab village confirms the role of PRCD in the aetiology of retinitis pigmentosa in humans J. Med. Genet 2010 47 533 537 20507925
  23. [24]Li L Nakaya N Chavali V R M Ma Z Jiao X Sieving P A Riazuddin S Tomarev S I Ayyagari R Riazuddin S A Hejtmancik J F A mutation in ZNF513, a putative regulator of photoreceptor development, causes autosomal-recessive retinitis pigmentosa Am. J. Hum. Genet 2010 87 400 409 20797688 PMC2933346
  24. [25]Sato M Nakazawa M Usui T Tanimoto N Abe H Ohguro H Mutations in the gene coding for guanylate cyclase-activating protein 2 (GUCA1B gene) in patients with autosomal dominant retinal dystrophies Graefes Arch. Clin. Exp. Ophthalmol 2004 243 235 242 15452722
  25. [26]Zhang Q Zulfiqar F Xiao X Riazuddin S A Ahmad Z Caruso R MacDonald I Sieving P Riazuddin S Hejtmancik J F Severe retinitis pigmentosa mapped to 4p15 and associated with a novel mutation in the PROM1 gene Hum. Genet 2007 122 293 299 17605048
  26. [28]Wang H den Hollander A I Moayedi Y Abulimiti A Li Y Collin R W J Hoyng C B Lopez I Bray M Lewis R A Lupski J R Mardon G Koenekoop R K Chen R Mutations in SPATA7 cause Leber congenital amaurosis and juvenile retinitis pigmentos Am. J. Hum. Genet 2009 84 380 387 19268277 PMC2668010
  27. [29]Riazuddin S A Iqbal M Wang Y Masuda T Chen Y Bowne S Sullivan L S Waseem N H Bhattacharya S Daiger S P Zhang K Khan S N Riazuddin S Hejtmancik J F Sieving P A Zack D J Katsanis N A splice-site mutation in a retina-specific exon of BBS8 causes nonsyndromic retinitis pigmentosa Am. J. Hum. Genet 2010 86 805 812 20451172 PMC2869005
  28. [30]Coppieters F Leroy BP Beysen D Hellemans J De Bosscher K Haegeman G Robberecht K Wuyts W Coucke P J De Baere E Recurrent mutation in the first zinc finger of the orphan nuclear receptor NR2E3 causes autosomal dominant retinitis pigmentosa Am. J. Hum. Genet 2007 81 147 157 17564971 PMC1950922
  29. [31]Friedman J S Ray J W Waseem N Johnson K Brooks M J Hugosson T Breuer D Branham K E Krauth D S Bowne S J Sullivan L S Ponjavic V Gränse L Khanna R Trager E H Gieser L M Hughbanks-Wheaton D Cojocaru R I Ghiasvand N M Swaroop A Mutations in a BTB-Kelch protein, KLHL7, cause autosomal-dominant retinitis pigmentosa Am. J. Hum. Genet 2009 84 792 800 19520207 PMC2694974
  30. [32]Ali RR Sarra G M Stephens C de Alwis M Bainbridge J W B Munro P M Fauser S Reichel M B Kinnon C Hunt D M Bhattacharya S S Thrasher A J Restoration of photoreceptor ultrastructure and function in retinal degeneration slow mice by gene therapy Nat. Genet 2000 25 06 310 10888879
  31. [33]Fingert J H Oh K Chung M Scheetz T E Andorf J L Johnson R M Sheffield V C Stone E M Association of a novel mutation in the retinol dehydrogenase 12 (RDH12) gene with autosomal dominant retinitis pigmentosa Arch. Ophthalmol 2008 126 9 1301 1307 18779497
  32. [34]Abid A Ismail M Mehdi S Q Khali S Identification of novel mutations in SEMA4A gene associated with retinal degenerative diseases J. Med. Genet 2006 43 378 381 16199541 PMC2563224
  33. [35]Li N Mei H Macdonald I M Jiao X Hejtmancik F Mutations in ASCC3L1 on chromosome 2q11.2 are associated with autosomal dominant retinitis pigmentosa in a Chinese family Invest. Ophthalmol. Vis. Sci 2009 51 1036 1043 19710410 PMC2868455
  34. [36]Chakarova C F Papaioannou M G Khanna H Lopez I Waseem N Shah A Theis T Friedman J Maubaret C Bujakowska K Veraitch B Abd El-Aziz M M Prescott D Q Parapuram S K Bickmore W A Munro P M G Gal A Hamel C P Bhattacharya S S Mutations in TOPORS cause autosomal dominant retinitis pigmentosa with perivascular retinal pigment epithelium atrophy Am. J. Hum. Genet 2007 81 1098 1103 17924349 PMC2265653
  35. [37]Rivolta C Berson E L Dryja T P Dominant Leber congenital amaurosis, cone-rod degeneration, and retinitis pigmentosa caused by mutant versions of the transcription factor CRX Hum. Mutat 2001 18 488 498 11748842
  36. [38]Dryja T P McGee T I Hahn L B Cowley G S Olsson J E Reichel E Sandberg M A Berson E L Mutations within the rhodopsin gene in patients with autosomal dominant retinitis pigmentosa New Eng. J. Med 1990 323 1302 1307 2215617
  37. [39]Oh KT Longmuir R Oh DM Stone EM Kopp K Brown J Fishman G A Sonkin P Gehrs K M Weleber R G Comparison of the clinical expression of retinitis pigmentosa associated with rhodopsin mutations at codon 347 and codon 23 Am. J. Ophthalmol 2003 136 306 313 12888054
  38. [40]Dryja T P Hahn L B Kajiwara K Berson E L Dominant and digenic mutations in the peripherin/RDS and ROM1 genes in retinitis pigmentosa Invest. Ophthalmol. Vis. Sci 1997 38 1972 1982 9331261
  39. [41]Rakoczy E P Kiel C McKeone R Stricher F Serrano J Analysis of disease-linked rhodopsin mutations based on structure, function, and protein stability calculations J. Mol. Biol 2011 405 2 584 606 21094163
  40. [42]al-Maghtheh M Gregory C Inglehearn C Hardcastle A Bhattacharya S Rhodopsin mutations in autosomal dominant retinitis pigmentosa Hum. Mutat 1993 2 4 249 255 8401533
  41. [43]Nathans J Rhodopsin: structure, function, and genetics Biochemistry 1992 31 21 4923 4931 1599916
  42. [44]Sandberg M A Weigel-DiFranco C Dryja T P Berson E L Clinical expression correlates with location of rhodopsin mutation in dominant retinitis pigmentosa Invest. Ophthalmol. Vis. Sci 1995 36 1934 1942 7635666
  43. [45]Van Soest S Westerveld A de Jong P T Bleeker-Wagemakers E M Bergen A A Retinitis pigmentosa: defined from a molecular point of view Surv. Ophthalmol 1999 43 321 334 10025514
  44. [46]Berson E L Rosner B Sandberg M A Weigel-DiFranco C Dryja T P Ocular findings in patients with autosomal dominant retinitis pigmentosa and rhodopsin, proline-347-leucine Am. J. Ophthalmol 1991 111 614 623 2021172
  45. [47]Leroy B P Kailasanthan A De Laey J J Black G C M Manson F D S Intrafamilial phenotypic variability in families with RDS mutations: exclusion of ROM1 as a genetic modifier for those with retinitis pigmentosa Br. J. Ophthalmol 2007 91 89 93 16916875 PMC1857593
  46. [48]Pierce E A Quinn T Meehan T McGee T L Berson E L Dryja T P Mutations in a gene encoding a new oxygen-regulated photoreceptor protein cause dominant retinitis pigmentosa Nat. Genet 1999 22 248 254 10391211
  47. [49]Liu Q Lyubarsky A Skalet J H Pugh EN Jr Pierce EA RP1 is required for the correct stacking of outersegment discs Invest. Ophthalmol. Vis. Sci 2003 44 4171 4183 14507858 PMC1904498
  48. [50]Arikawa K Molday L L Molday R S Williams D S Localization of peripherin/rds in the disc membranes of cone and rod photoreceptors: relationship to disc membrane morphogenesis and retinal degeneration J. Cell Biol 1992 116 659 667 1730772 PMC2289304
  49. [51]Keen T J Ingleheran C F Mutations and polymorphisms in the human peripherin-RDS gene and their involvement in inherited retinal degeneration Hum. Mutat 1996 8 297 303 8956033
  50. [52]Wells J Wroblewski J Keen J Inglehearn C Jubb C Eckstein A Jay M Arden G Bhattacharya S Fitzke F Bird A Mutations in the human retinal degeneration slow (RDS) gene can cause either retinitis pigmentosa or macular dystrophy Nat. Genet 1993 3 3 213 218 8485576
  51. [53]Wroblewski J J Wells J A Eckstein A Fitzke F Jubb C Keen T J Inglehearn C Bhattacharya S Arden GB Jay M Bird AC Macular dystrophy associated with mutations at codon 172 in the human retinal degeneration slow (RDS) gene Ophthalmology 1994 101 1 12 22 8302543
  52. [54]Nakazawa M Wada Y Tamai M Macular dystrophy associated with monogenic Arg172Trp mutation of the peripherin/RDS gene in a Japanese family Retina 1995 15 6 518 523 8747448
  53. [55]Piguet B Héon E Munier FL Grounauer P A Niemeyer G Butler N Schorderet D F Sheffield V C Stone E M Full characterization of the maculopathy associated with an Arg-172-Trp mutation in the RDS/peripherin gene Ophthalmic Genet 1996 17 4 175 186 9010868
  54. [56]Keen T J Inglehearn C F Mutations and polymorphisms in the human peripherin-RDS gene and their involvement in inherited retinal degeneration Hum. Mutat 1996 8 4 297 303 8956033
  55. [57]Klevering B J Yzer S Rohrschneider K Zonneveld M Allikmets R van den Born L I Maugeri A Hoyng C B Cremers F P Microarray-based mutation analysis of the ABCA4 (ABCR) gene in autosomal recessive cone-rod dystrophy and retinitis pigmentosa Eur. J. Hum. Genet 2004 12 1024 1032 15494742
  56. [58]Koenekoop R K The gene for Stargardt disease, ABCA4, is a major retinal gene: a mini-review Ophthalmic Genet 2003 24 2 75 80 12789571
  57. [59]Tsbovsky Y Molday R S Palczewski K The ATP-binding cassette transporter ABCA4: structural and functional properties and role in retinal disease Adv. Exp. Med. Biol 2010 703 105 125 20711710 PMC2930353
  58. [61]Koenekoop R K Loyer M Hand C K Al Mahdi H Dembinska O Beneish R Racine J Rouleau G A Novel RPGR mutations with distinct retinitis pigmentosa phenotypes in French-Canadian families Am. J. Ophthalmol 2003 136 4 678 687 14516808
  59. [62]Benayoun L Spiegel R Auslender N Abbasi A H Rizel L Hujeirat Y Salama I Garzozi H J Allon-Shalev S Ben-Yosef T Genetic heterogeneity in two consanguineous families segregating early onset retinal degeneration: the pitfalls of homozygosity mapping Am. J. Med. Genet 2009 149A 4 650 656 19140180
  60. [63]den Hollander A I van Lith-Verhoeven J J C Arends M L Strom T M Cremers F P M Hoyng C B Novel compound heterozygous TULP1 mutations in a family with severe early-onset retinitis pigmentosa Arch. Ophthalmol 2007 125 7 932 935 17620573
  61. [64]Hagstrom S A North M A Nishina P M Berson E L Dryja T P Recessive mutations in the gene encoding the tubby-like protein TULP1 in patients with retinitis pigmentosa Nat. Genet 1998 18 2 174 176 9462750
  62. [65]Kaplan J Bonneau D Frezal J Munnich A Dufier J Clinical and genetic heterogeneity in retinitis pigmentosa Hum. Genet 1990 85 6 635 642 2227956
  63. [66]Sohocki M M Sullivan L S Mintz-Hittner H A Birch D Heckenlively J R Freund C L McInnes R R Daiger S P A range of clinical phenotypes associated with mutations in CRX, a photoreceptor transcription-factor gene Am. J. Hum. Genet 1998 63 5 1307 1315 9792858 PMC1377541
  64. [67]Kranich H Bartkowski S Denton M J Krey S Dickinson P Duvigneau C Gal A Autosomal dominant 'sector' retinitis pigmentosa due to a point mutation predicting an asn15-to-ser substitution of rhodopsin Hum. Mol. Genet 1993 2 6 813 814 8353500
  65. [68]Heckenlively J R Preserved para-arteriole retinal pigment epithelium (PPRPE) in retinitis pigmentosa Br. J. Ophthalmol 1982 66 1 26 30 7055539 PMC1039707
  66. [69]Fishman G A Roberts M F Derlacki D J Grimsby J L Yamamoto H Sharon D Nishiguchi K M Dryja T P Novel mutations in the cellular retinaldehyde-binding protein gene (RLBP1) associated with retinitis punctata albescens: evidence of interfamilial genetic heterogeneity and fundus changes in heterozygotes Arch. Ophthalmol 2004 122 1 70 75 14718298
  67. [70]den Hollander A I Heckenlively J R van den Born L I de Kok Y J M van der Velde-Visser S D Kellner U Jurklies B van Schooneveld M J Blankenagel A Rohrschneider K Wissinger B Cruysberg J R M Deutman A F Brunner H G Apfelstedt-Sylla E Hoyng C B Cremers F P M Leber congenital amaurosis and retinitis pigmentosa with Coats-like exudative vasculopathy are associated with mutations in the Crumbs homologue 1 (CRB1) gene Am. J. Hum. Genet 2001 69 1 198 203 11389483 PMC1226034
  68. [71]Cideciyan A Hauswirth W Aleman T Kaushal S Schwartz S Boye S Windsor E Conlon T Sumaroka A Pang J Roman A Byrne B Jacobson S Human RPE65 gene therapy for Leber congenital amaurosis: persistence of early visual improvements and safety at 1 year Hum. Gene Ther 2009 20 9 999 1004 19583479 PMC2829287
  69. [72]Maguire A High K Auricchio A Wright J Pierce E Testa F Mingozzi F Bennicelli J Ying G Rossi S Fulton A Marshall K Banfi S Chung D Morgan J Hauck B Zelenaia O Zhu X Raffini L Coppieters F De Baere E Shindler K Volpe N Surace E Acerra C Lyubarsky Redmond T Stone E Sun J McDonnell J Leroy B Simonelli F Bennett J Age-dependent effects of RPE65 gene therapy for Leber’s congenital amaurosis: a phase 1 dose-escalation trial Lancet 2009 3749 9701 1597 1605 19854499 PMC4492302
  70. [74]Koenekoop R Lopez I den Hollander A Allikmets R Cremers F Genetic testing for retinal dystrophies and dysfunctions: benefits, dilemmas and solutions Clin. Experiment. Ophthalmol 2007 35 5 473 485 17651254
  71. [75]Klevering B Yzer S Rohrschneider K Zonneveld M Rando Allikmets R van den Born L Maugeri A Hoyng C Cremers F Microarray-based mutation analysis of the ABCA4 (ABCR) gene in autosomal recessive cone–rod dystrophy and retinitis pigmentosa Eur. J. Hum. Genet 2004 12 12 1024 1032 15494742
  72. [76]Ávila-Fernández A Cantalapiedra D Aller E Vallespín E Aguirre-Lambán J Blanco-Kelly F Corton M Riveiro-Álvarez R Allikmets R Trujillo-Tiebas M Millán J Cremers F Ayuso C Mutation analysis of 272 Spanish families affected by autosomal recessive retinitis pigmentosa using a genotyping microarray Mol. Vis 2010 16 2550 2558 21151602 PMC3000238
  73. [77]Wilson A S Hobbs B G Speed T P Rakoczy P E The microarray: potential applications for ophthalmic research Mol. Vis 2002 8 259 270 12131875
  74. [78]Mandal M N Heckenlively J R Burch T Chen L Vasireddy V Koenekoop R K Sieving P A Ayyagari R Sequencing arrays for screening multiple genes associated with early-onset human retinal degenerations on a high-throughput platform Invest. Ophthalmol. Vis. Sci 2005 46 3355 3362 16123440
  75. [79]Clark G R Crowe P Muszynska D O’Prey D O'Neill J Alexander S Willoughby C E McKay G J Silvestri G Simpson D A Development of a diagnostic genetic test for simplex and autosomal recessive retinitis pigmentosa Ophthalmol 2010 117 2169 2177 20591486

Authors
Chang, S., Vaccarella, L., Olatunji, S., Cebulla, C., & Christoforidis, J.
Affiliations
The Ohio State University Wexner Medical Center (US)
Corresponding author
Chang, Susie
Venue
Current Genomics
Published
2011-06-01
Volume
12
Issue
4
Pages
267-275
ISSN
1389-2029 (ISSN-L)
OpenAlex
W1976074490
Cited by
78
References
77
Citations by year
2026: 5 · 2025: 5 · 2024: 13 · 2023: 8 · 2022: 7 · 2021: 3 · 2020: 5 · 2019: 4 · 2018: 4 · 2017: 11 · 2016: 2 · 2015: 5 · 2014: 2 · 2013: 2 · 2012: 2
FWCI
0.78
Type
journal article
Language
en
Open access
Locations
  • Current Genomics (publishedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Center for Research Resources (UL1RR025755)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
Keywords
retinitis pigmentosa, genotype-phenotype correlation, phenotypic variability, inherited retinal degeneration, clinical features, genetic testing, disease heterogeneity, disease progression

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review