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Molecular Medicine Reports
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March-2016 Volume 13 Issue 3

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Article

Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene

  • Authors:
    • Stefano Piermarocchi
    • Tatiana Segato
    • Alberta Leon
    • Davide Colavito
    • Stefania Miotto
  • View Affiliations / Copyright

    Affiliations: Department of Neuroscience, University of Padova, Padova IT‑35128, Italy, Research and Innovation Laboratories Srl, Padova IT‑35127, Italy
  • Pages: 2308-2312
    |
    Published online on: January 14, 2016
       https://doi.org/10.3892/mmr.2016.4784
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Abstract

Occult macular dystrophy (OMD) is an inherited macular disease characterized by progressive visual decline with the absence of visible retinal abnormalities. Typical alterations of the retinal structure are detectable by spectral domain optical coherence tomography (SD‑OCT). Mutations in the RP1L1 gene have been identified to be responsible for the disease in Asian subjects. The present study assessed the role of mutations in the RP1L1 gene in an Italian family with OMD. One patient with OMD and five related subjects (two male offspring affected by progressive visual decline and three asymptomatic siblings of the patient) were subjected to complete ophthalmological examination. SD‑OCT was also performed. All subjects were screened for OMD‑associated genetic mutations in the RP1L1 gene. The OMD patient and the two symptomatic offspring presented with a reduced best‑corrected visual acuity. Although no fundus abnormalities were observed, SD‑OCT examination showed that the external limiting membrane and the inner segment/outer segment band were not clearly identifiable and a focal disruption of the photoreceptor layer was present. The degree of photoreceptor alterations was correlated with the severity of visual impairment. Clinical and tomographic results in the three asymptomatic relatives were normal. A p.Arg45Trp mutation in the RP1L1 gene was identified in the OMD patient, in the two symptomatic offspring and also in two of the asymptomatic siblings of the patient. The identification of RP1L1 mutations in subjects with OMD may improve the accuracy of diagnosis of this rare condition and may aid in enhancing the efficacy of genetic counseling.
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Copy and paste a formatted citation
Spandidos Publications style
Piermarocchi S, Segato T, Leon A, Colavito D and Miotto S: Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene. Mol Med Rep 13: 2308-2312, 2016.
APA
Piermarocchi, S., Segato, T., Leon, A., Colavito, D., & Miotto, S. (2016). Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene. Molecular Medicine Reports, 13, 2308-2312. https://doi.org/10.3892/mmr.2016.4784
MLA
Piermarocchi, S., Segato, T., Leon, A., Colavito, D., Miotto, S."Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene". Molecular Medicine Reports 13.3 (2016): 2308-2312.
Chicago
Piermarocchi, S., Segato, T., Leon, A., Colavito, D., Miotto, S."Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene". Molecular Medicine Reports 13, no. 3 (2016): 2308-2312. https://doi.org/10.3892/mmr.2016.4784
Copy and paste a formatted citation
x
Spandidos Publications style
Piermarocchi S, Segato T, Leon A, Colavito D and Miotto S: Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene. Mol Med Rep 13: 2308-2312, 2016.
APA
Piermarocchi, S., Segato, T., Leon, A., Colavito, D., & Miotto, S. (2016). Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene. Molecular Medicine Reports, 13, 2308-2312. https://doi.org/10.3892/mmr.2016.4784
MLA
Piermarocchi, S., Segato, T., Leon, A., Colavito, D., Miotto, S."Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene". Molecular Medicine Reports 13.3 (2016): 2308-2312.
Chicago
Piermarocchi, S., Segato, T., Leon, A., Colavito, D., Miotto, S."Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene". Molecular Medicine Reports 13, no. 3 (2016): 2308-2312. https://doi.org/10.3892/mmr.2016.4784
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