[Molecular genetic diagnosis of Stargardt disease].

Autor:	Sheremet NL; Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russia, 119021., Zhorzholadze NV; Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russia, 119021., Ronzina IA; Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russia, 119021., Grushke IG; Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russia, 119021., Kurbatov SA; Voronezh Regional Clinical Consultative and Diagnostic Center, 5a Lenina Sq., Voronezh, Russia, 394018., Chukhrova AL; Research Centre of Medical Genetics, 1 Moskvorech'e St., Moscow, Russia, 115478., Loginova AN; Research Centre of Medical Genetics, 1 Moskvorech'e St., Moscow, Russia, 115478., Shcherbakova PO; Pirogov Russian National Research Medical University, 1 Ostrovityanova St., Moscow, Russia, 117997., Tanas AS; Research Centre of Medical Genetics, 1 Moskvorech'e St., Moscow, Russia, 115478., Polyakov AV; Research Centre of Medical Genetics, 1 Moskvorech'e St., Moscow, Russia, 115478., Strel'nikov VV; Research Centre of Medical Genetics, 1 Moskvorech'e St., Moscow, Russia, 115478.
Jazyk:	ruština
Zdroj:	Vestnik oftalmologii [Vestn Oftalmol] 2017; Vol. 133 (4), pp. 4-11.
DOI:	10.17116/oftalma201713344-11
Abstrakt:	Aim: To comparatively evaluate the efficacy of genetic screening in patients with Stargardt disease (SD) by using an express panel of 5 most common ABCA4 mutations and performing massive parallel sequencing of all coding regions of the ABCA4, ELOVL4, PROM1, and CNGB3 genes. Material and Methods: MLPA analysis for 5 ABCA4 mutations, namely p.G863A, p.L541P, p.A1038V, p.G1961E, and p.P1380L, was done in 54 patients with SD. In 25 patients, massive parallel sequencing of coding regions (exons) and neighboring introns of the ABCA4, ELOVL4, PROM1, and CNGB3 genes was also performed. Results: Gene testing for 5 ABCA4 mutations showed that 50% of patients (27 patients) harbored one mutation and 13% - two mutations. At massive parallel sequencing (25 patients), two pathogenic alleles were found in 21 patients (84%), one mutation - in 23 patients (91.7%). The majority of mutations was accounted for by the ABCA4 gene (83% of all mutation-positive patients). Conclusion: Sequencing of exons and neighboring introns of the ABCA4, ELOVL4, PROM1, and CNGB3 genes with the new molecular genetic diagnostic system enabled confirmation of the diagnosis of SD in 84% of patients. High prevalence of p.L541P, p.A1038V, and p.G1961E mutations of the ABCA4 gene has been established.
Databáze:	MEDLINE
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