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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">perinatology</journal-id><journal-title-group><journal-title xml:lang="ru">Российский вестник перинатологии и педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1027-4065</issn><issn pub-type="epub">2500-2228</issn><publisher><publisher-name>Ltd. “The National Academy of Pediatric Science and Innovation”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21508/1027-4065-2017-62-3-71-78</article-id><article-id custom-type="elpub" pub-id-type="custom">perinatology-502</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>НАСЛЕДСТВЕННЫЕ БОЛЕЗНИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HEREDITARY DISEASES</subject></subj-group></article-categories><title-group><article-title>КЛИНИКО-ГЕНЕТИЧЕСКАЯ ХАРАКТЕРИСТИКА МУКОЛИПИДОЗА II И IIIA ТИПОВ У ДЕТЕЙ</article-title><trans-title-group xml:lang="en"><trans-title>CLINICAL AND GENETIC CHARACTERISTICS OF MUCOLIPIDOSIS II AND IIIA TYPES IN CHILDREN</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семячкина</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Semyachkina</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семячкина Алла Николаевна – доктор медицинских наук, гл. научн. сотр. отдела психоневрологии и наследственных заболеваний с нарушением психики </p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воскобоева</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Voskoboeva</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воскобоева Елена Юрьевна – кандидат медицинских наук, ведущий научный сотрудник лаборатории генетики наследственных болезней обмена веществ </p><p>115478 Москва, ул. Москворечье, д. 1</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Букина</surname><given-names>Т. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bukina</surname><given-names>Т. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Букина Татьяна Михайловна – кандидат биологических наук, старший научный сотрудник лаборатории генетики наследственных болезней обмена веществ </p><p>115478 Москва, ул. Москворечье, д. 1</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Букина</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bukina</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Букина Анна Михайловна – научный сотрудник лаборатории генетики наследственных болезней обмена веществ </p><p>115478 Москва, ул. Москворечье, д. 1</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаева</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaeva</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николаева Екатерина Александровна – доктор медицинских наук, рук. отдела психоневрологии и наследственных заболеваний с нарушением психики </p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данцев</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Dantsev</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данцев Илья Сергеевич – врач отделения врожденных и наследственных заболеваний с поражением центральной нервной системы с нарушением психики у детей </p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Харабадзе</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kharabadze</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Харабадзе Малвина Нодариевна – кандидат медицинских наук, зав. отделением врожденных и наследственных заболеваний с поражением центральной нервной системы с нарушением психики у детей </p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Давыдова</surname><given-names>Ю. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Davydova</surname><given-names>Yu. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давыдова Юлия Игоревна – врач отделения врожденных и наследственных заболеваний с поражением центральной нервной системы с нарушением психики у детей </p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ОСП «Научно-исследовательский клинический институт педиатрии им. академика Ю.Е. Вельтищева» ФГБОУ ВО «РНИМУ им. Н.И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Academician Yu.E. Veltishchev Research Clinical Institute of Pediatrics, N.I. Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Медико-генетический научный центр»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Medical Genetics Research Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>29</day><month>06</month><year>2017</year></pub-date><volume>62</volume><issue>3</issue><fpage>71</fpage><lpage>78</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ltd. “The National Academy of Pediatric Science and Innovation”, 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><copyright-holder xml:lang="en">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><license xlink:href="https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ped-perinatology.ru/jour/article/view/502">https://www.ped-perinatology.ru/jour/article/view/502</self-uri><abstract><p>Статья посвящена редкой патологии из группы болезней накопления с аутосомно-рецессивным типом наследования – муколипидозу II и IIIA типов. Заболевание отличается большим фенотипическим сходством с мукополисахаридозом.</p><p>Цель работы: анализ генофенотипических показателей у российских больных с муколипидозом II и IIIA типов. Активность лизосомных ферментов в плазме (β-глюкуронидазы, общей гексозаминидазы и N-ацетил-альфа-D-глюкозаминидазы) измерялась по стандартной методике с использованием хромогенных и флюорогенных субстратов. Геномная ДНК лейкоцитов периферической крови выделялась с помощью набора реактивов Preb 100 (DIAtomTM). Амплификация всех экзонов гена GNPTAB проводилась методом полимеразной цепной реакции (ПЦР) с последующим прямым нерадиоактивным секвенированием по Сэнгеру.</p><p>Обследованы 50 больных в возрасте от 1,5 до 10 лет. Клиническая симптоматика болезни включала: Гурлер-подобный фенотип, задержку роста, поражение скелета, сердца и сосудов, ЦНС. Муколипидоз II типа (I-клеточная болезнь) отличался более тяжелым течением. Клинический диагноз был подтвержден результатами лабораторных методов исследования: нормальными показателями почечной экскреции гликозаминогликанов (ГАГ), высокой (в 5–15 раз выше нормы) активностью лизосомных гидролаз в плазме крови и выявлением мутаций в гене GNPTAB. </p><p>Полностью генотипированы 35 пробандов. У 8 больных выявлено только 8 мутантных аллелей; у 7 – мутации не обнаружены. Найдено 6 новых мутаций в экзонах 1 (p.I31N; p.Q36P), 10 (p.L398P), 11 (p.W446X) и 13 (p.S738X; c.2250delT), в том числе частая для российских больных мутация p.S738X (21% аллелей). Наиболее частой (31,4% аллелей) в российской когорте пациентов оказалась известная мелкая делеция c. 3503_3504delTC, приводящая к сдвигу рамки считывания.</p><p>Представлено клиническое наблюдение ребенка с муколипидозом II типа (I-клеточная болезнь) с типичной симптоматикой заболевания, обусловленной двумя нонсенс-мутациями гена GNPTAB: p.S738X/p.R375X.</p><p>В заключение подчеркивается, что идентификация мутаций гена GNPTAB обеспечивает прогнозирование тяжести течения болезни, понимание механизмов ее развития, что будет способствовать разработке методов патогенетического лечения, улучшению качества жизни больных и эффективному медико-генетическому консультированию. </p></abstract><trans-abstract xml:lang="en"><p>The article is devoted to a rare pathology from a group of accumulation diseases with an autosomal recessive type of inheritance – mucolipidosis II and IIIA types. The disease is characterized by a greater phenotypic similarity to mucopolysaccharidosis.</p><sec><title>Objective</title><p>Objective: analysis of genophenotypic parameters in Russian patients with mucolipidosis II and IIIA types. The activity of lysosomal enzymes in plasma (β-glucuronidase, total hexosaminidase and N-acetyl-α-D-glucosaminidase) was measured using a standard technique using chromogenic and fluorogenic substrates. Genomic DNA of peripheral blood leukocytes was isolated using a set of reagents Preb 100 (DIAtomTM). Amplification of all exons of the GNPTAB gene was carried out by polymerase chain reaction (PCR) followed by direct non-radioactive sequencing by Sanger.</p></sec><sec><title>50 patients aged from 1</title><p>50 patients aged from 1.5 to 10 years were examined. The clinical symptoms of the disease included: a Hurler-like phenotype, growth retardation, skeletal, cardiac and vascular damage, and CNS. Mucolipidosis type II (I-cell disease) was characterized by a more severe course. The clinical diagnosis was confirmed by the results of laboratory methods of investigation: normal parameters of renal excretion of glycosiminoglycans (GAG), high (5-15 times higher than normal) activity of lysosomal hydrolases in blood plasma and detection of mutations in the GNPTAB gene.</p><p>35 probands are completely genotyped. In 8 patients only 8 mutant alleles were detected; 7 mutations were not detected. Six new mutations in exons 1 (p.I31N; p.Q36P), 10 (p.L398P), 11 (p.W446X) and 13 (p.S738X; c.2250delT) were found, including a frequent mutation for Russian patients P.S738X (21% alleles). The most common (31.4% alleles) in the Russian cohort of patients was a known small deletion c. 3503_3504delTC, leading to a reading frameshift.</p><p>A clinical observation of a child with type 2 mucolipidosis (I-cell disease) with typical symptomatology of the disease caused by two nonsense mutations of the GNPTAB gene is presented: p.S738X / p.R375X.</p><p>In conclusion, it is emphasized that the identification of mutations of the GNPTAB gene provides prediction of the severity of the disease course, an understanding of the mechanisms of its development that will contribute to the development of pathogenetic treatment methods, improving the quality of life of patients and effective medical and genetic counseling.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>муколипидоз II типа</kwd><kwd>муколипидоз III типа</kwd><kwd>ген GNPTAB</kwd><kwd>мутации p.S738X</kwd><kwd>c. 3503_3504delTC</kwd><kwd>лизосомные ферменты</kwd><kwd>диагностика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>type II mucolipidosis</kwd><kwd>type III mucolipidosis</kwd><kwd>GNPTAB gene</kwd><kwd>mutations p.S738X</kwd><kwd>c. 3503_3504delTC</kwd><kwd>lysosomal enzymes</kwd><kwd>and diagnosis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kornfield S., Sly W.S. 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DOI: 10.1002/humu.21099.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
