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Updated: Jan 8, 2026
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Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography
Published on: August 11, 2016
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Genetic Features of Albinism: A Comprehensive Analysis in the Russian Population
Sofya Ionova1, Andrey Marakhonov1, Vitaliy Kadyshev1
1Research Centre for Medical Genetics, Moscow, Russia.
Pigment Cell & Melanoma Research
|December 22, 2025
Summary
This study analyzes albinism in 177 Russian individuals, identifying specific TYR gene variants prevalent in the population. Molecular and functional analyses confirmed diagnoses in over 70% of cases.
Area of Science:
- Genetics
- Molecular Biology
- Epidemiology
Background:
- Albinism presents as isolated or syndromic forms.
- Understanding genetic variations is crucial for diagnosis and population studies.
Purpose of the Study:
- To conduct a molecular and epidemiological analysis of albinism in a Russian cohort.
- To identify population-specific genetic variants.
- To determine disease frequencies and confirm diagnoses.
Main Methods:
- Analysis of 177 Russian albinism probands.
- Comparative frequency analysis of TYR gene variants between the NGI project and GnomAD.
- Functional analysis of TYR gene variants impacting splicing.
- Application of ACMG classification for diagnosis confirmation.
Main Results:
- Identified TYR gene variants (c.650G>A and c.1037-7T>A) prevalent in the Russian population.
- Demonstrated potential splicing effects of identified TYR variants.
- Calculated minimal estimated disease frequencies for isolated albinism forms.
- Confirmed diagnoses in 71.8% of the Russian cohort using molecular, functional, and classification data.
Conclusions:
- Specific TYR gene variants are prevalent in the Russian albinism population.
- Molecular and functional analyses are key for accurate albinism diagnosis.
- This study provides essential data for albinism epidemiology in Russia.
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