Publications by authors named "Alaa Altalbishi"

The AGBL5 gene encodes for the Cytoplasmic Carboxypeptidase 5 (CCP5), an α-tubulin deglutamylase that cleaves the γ-carboxyl-linked branching point of glutamylated tubulin. To date, pathogenic variants in AGBL5 have been associated only with isolated retinitis pigmentosa (RP). Hearing loss has not been reported in AGBL5-caused retinal disease.

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Inherited macular dystrophies (iMDs) are a group of genetic disorders, which affect the central region of the retina. To investigate the genetic basis of iMDs, we used single-molecule Molecular Inversion Probes to sequence 105 maculopathy-associated genes in 1352 patients diagnosed with iMDs. Within this cohort, 39.

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Purpose: To present the clinical characteristics, retinal features, natural history, and genetics of ADGRV1-Usher syndrome (USH).

Design: Multicenter international retrospective cohort study.

Methods: Clinical notes, hearing loss history, multimodal retinal imaging, and molecular diagnosis were reviewed.

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Purpose: To analyze the clinical characteristics, natural history, and genetics of CRB1-associated retinal dystrophies.

Design: Multicenter international retrospective cohort study.

Methods: Review of clinical notes, ophthalmic images, and genetic testing results of 104 patients (91 probands) with disease-causing CRB1 variants.

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Article Synopsis
  • The study investigates the impact of a specific noncoding variant, c.859-25A>G, found in the ABCA4 gene, on retinal diseases like Stargardt disease (STGD) and cone-rod dystrophy (CRD) in Palestinian individuals.
  • Researchers used sequencing, splice assays, and clinical assessments to understand how this variant affects mRNA splicing and the resulting eye health.
  • The findings indicate that c.859-25A>G causes significant splicing defects leading to severe retinal conditions, making it a common genetic variant linked to inherited retinal diseases in the West Bank region.
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Background: Retinitis pigmentosa (RP) is a heterogeneous group of inherited ocular diseases that result in progressive retinal degeneration. This study aims to describe different Swept-source Optical Coherence Tomographic (SS-OCT) changes in Palestinian RP patients and to explore possible correlations with Visual Acuity (VA).

Methods: A cross-sectional observational study was conducted on Retinitis Pigmentosa patients diagnosed with RP in a tertiary eye hospital.

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Pathogenic variants in INPP5E cause Joubert syndrome (JBTS), a ciliopathy with retinal involvement. However, despite sporadic cases in large cohort sequencing studies, a clear association with non-syndromic inherited retinal degenerations (IRDs) has not been made. We validate this association by reporting 16 non-syndromic IRD patients from ten families with bi-allelic mutations in INPP5E.

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Purpose: To report genetic and clinical findings in a case series of 10 patients from eight unrelated families diagnosed with Senior-Løken syndrome.

Methods: A retrospective study of patients with Senior-Løken syndrome. Data collected included clinical findings electroretinography and ocular imaging.

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Aim: To analyze the risk factors, ophthalmological features, treatment modalities and their effect on the visual outcome in patients with endogenous fungal endophthalmitis (EFE).

Methods: Data retrieved from the medical files included age at presentation to the uveitis clinic, gender, ocular symptoms and their duration before presentation, history of fever, eye affected, anatomical diagnosis and laboratory evidence of fungal infection. Medical therapy recorded included systemic antifungal therapy and its duration, use of intravitreal antifungal agents and use of oral/intravitreal steroids.

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Article Synopsis
  • The study addresses the challenge of missing heritability in ABCA4-associated Stargardt disease (STGD1) by analyzing genomic variations in 1054 probands.
  • Using a cost-effective sequencing method, researchers identified known and novel intronic variants and structural variants, leading to insights about potential causes of the disease.
  • The findings revealed that 25% of biallelic STGD1 cases had identifiable genetic causes, demonstrating a model that could aid future research on other inherited diseases.
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Precise genetic and phenotypic characterization of congenital stationary night blindness (CSNB) patients is needed for future therapeutic interventions. The aim of this study was to estimate the prevalence of CSNB in our populations and to study clinical and genetic aspects of the autosomal recessive (AR) form of CSNB. This is a retrospective cohort study of Palestinian and Israeli CSNB patients harboring mutations in TRPM1 underwent comprehensive ocular examination.

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Purpose: To identify the accurate clinical diagnosis of rare syndromic inherited retinal diseases (IRDs) based on the combination of clinical and genetic analyses.

Methods: Four unrelated families with various autosomal recessive syndromic inherited retinal diseases were genetically investigated using whole-exome sequencing (WES).

Results: Two affected subjects in family MOL0760 presented with a distinctive combination of short stature, developmental delay, congenital mental retardation, microcephaly, facial dysmorphism and retinitis pigmentosa (RP).

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Purpose: Preeclampsia is a multisystem disorder defined as new onset of hypertension and proteinuria during the second half of pregnancy. Serous retinal detachment (SRD) is a known complication of preeclampsia caused by choroidal ischemia and subsequent disruption of blood-retinal barrier. Poor perfusion of the choriocapillaris causes Elschnig's spots.

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