Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Nauchno-prakticheski...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 1 versions
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

Lysosome acid lipase deficiency in Russian patients: molecular characteristic and epydemiology

Дефицит лизосомной кислой липазы у российских больных: молекулярная характеристика и эпидемиология

Lysosome acid lipase deficiency in Russian patients: molecular characteristic and epydemiology

Abstract

Введение. Дефицит лизосомной кислой липазы (ДЛКЛ) - континуум аутосомно-рецессивно наследуемых фенотипов, обусловленных генетическими дефектами фермента лизосомной кислой липазы (ЛКЛ), играющего ключевую роль в обмене липидов. ЛКЛ кодируется геном LIPA, наиболее распространенный патогенный вариант которого -c.894G>A - является причиной заболевания в более чем половине случаев. Точная частота ДЛКЛ неизвестна, в России она предположительно составляет от 1:150 000 до 1:100 000 новорожденных. Цель: биохимический скрининг на ДЛКЛ в группе высокого риска, изучение спектра мутаций гена LIPA и оценка встречаемости заболевания в г. Москве. Методы. В исследовании участвовали 1999 пациентов из различных регионов РФ с подозрением на лизосомные болезни накопления (ЛБН). Выборку для исследования носительства частого варианта гена LIPA составили сухие пятна крови 920 живых новорожденных г. Москвы. Активность ЛКЛ измерялась флуориметрическим методом в сухих пятнах крови. Кодирующая последовательность гена LIPA изучалась путём прямого секвенирования и ПДРФ-анализа. Результаты. Тридцати четырем пациентам установлен диагноз ДЛКЛ. Выявлено 16 вариантов гена LIPA, из них 11 не описаны ранее. Десять вариантов - высоковероятно патогенные, один - неясного значения. Наиболее частой мутацией в выборке был аллель c.894G>A, что характерно для большинства европейских популяций. Частота данного аллеля у 920 новорожденных Москвы составила 1:270. Исходя из этого, расчетная частота встречаемости ДЛКЛ составила 1:73 159, что превышает ориентировочную оценку для РФ. Заключение. Целесообразен скрининг на ДЛКЛ пациентов с подозрением на ЛБН. Аллельная частот варианта c.894G>A среди выявленных вариантов гена LIPA сопоставима с таковой в европейских исследованиях. В отличие от этих работ у российских больных встретилось относительно много различных вариантов гена, ранее описываемых крайне редко или неописанных. Расчетная частота заболеваемости ДЛКЛ в г. Москве превышает предполагаемую для РФ. Background. Lysosomal acid lipase deficiency (LALD) is a continuum of autosomal recessive diseases caused by defects in the enzyme of lipid metabolism, lysosomal acid lipase (LAL). LAL encodes by the gene LIPA. The most common variant of LIPA c.894G>A caused the disease in more than а half of cases. The true frequency of LALD is unknown. In Russia it is supposed to be 1:150000 - 1:100000 of newborns. The aim of the work is the selective biochemical screening for LALD, the study of LIPA mutation spectrum and the estimation of the LALD incidence in Moscow. Materials and methods. 1999 рatients suspected of lysosomal storage diseases (LSD) took part in the study. Dried blood spots of 920 newborns of Moscow were obtained for the estimation of c.894G>A allelic frequency. LAL activity was measured by fluorometric analysis. The LIPA gene was studied by direct sequencing and RFLP-analysis. Results and discussion. In 34 cases diagnosis of LALD was confirmed. Totally, 16 different variants of LIPA were found, 11 variants were novel. Ten of the novel variants were classified as pathogenic, one was uncertain significance. The allele c.894G>A was the most common LIPA variant in the cohort of patients, so as in many Europe populations. The allelic frequency of the variant in the newborns collection was estimated as 1:270 and LALD frequence was 1:73.159. Conclusion. Screening for LALD is a useful tool for diagnostics among LSD suspected patients. The allelic frequency of the variant c.894G>A seems the same as in European populations. In comparison with this data, there are many rare and novel variants in the Russian cohort.

Related Organizations
Keywords

acid lipase, LIPA, lysosomal acid lipase deficiency, лизосомные болезни накопления, дефицит лизосомной кислой липазы, болезнь Вольмана, RFLP-analysis, ПДРФ-анализ, кислая липаза, lysosomal storage diseases, Wolman disease

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    4
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Top 10%
Average
Average
hybrid