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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2018.01.20-26</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-378</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Ассоциация гена аполипопротеина Е с вариабельностью когнитивных способностей пожилых людей</article-title><trans-title-group xml:lang="en"><trans-title>Association of apolipoprotein E gene polymorphism with cognitive abilities variability of elderly people</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>Марусин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Marusin</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макеева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Makeeva</surname><given-names>O. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вагайцева</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vagaytseva</surname><given-names>K. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бочарова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bocharova</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сваровская</surname><given-names>М. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Swarovskaya</surname><given-names>M. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Салахов</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Salakhov</surname><given-names>R. R.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степанов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanov</surname><given-names>V. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Istitute of Medical Genetics, Tomsk National Research Medical Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр РАН; Центр клинических исследований «Неббиоло»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Istitute of Medical Genetics, Tomsk National Research Medical Center; Center for Clinical Research «Nebbiolo»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр РАН; Национальный исследовательский Томский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Istitute of Medical Genetics, Tomsk National Research Medical Center; National Research Tomsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Научно-исследовательский институт комплексных проблем сердечно-сосудистых заболеваний</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Istitute for Complex Issues of Cardiovascular Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр РАН; Национальный исследовательский Томский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Istitute of Medical Genetics, Tomsk National Research Medical Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>26</day><month>03</month><year>2018</year></pub-date><volume>17</volume><issue>1</issue><fpage>20</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Марусин А.В., Макеева О.А., Вагайцева К.В., Бочарова А.В., Сваровская М.Г., Салахов Р.Р., Степанов В.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Марусин А.В., Макеева О.А., Вагайцева К.В., Бочарова А.В., Сваровская М.Г., Салахов Р.Р., Степанов В.А.</copyright-holder><copyright-holder xml:lang="en">Marusin A.V., Makeeva O.A., Vagaytseva K.V., Bocharova A.V., Swarovskaya M.G., Salakhov R.R., Stepanov V.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.medgen-journal.ru/jour/article/view/378">https://www.medgen-journal.ru/jour/article/view/378</self-uri><trans-abstract xml:lang="en"><p>Physiological changes in the brain with natural aging and the development of dementia have a common genetic basis, which makes it important to search for genetic variants that delineate the natural decline in cognitive abilities with age and dementia of the Alzheimer’s type. Objective: the search for the relationship between two polymorphic variants (rs429358 and rs7412) APOE gene and their protein isoforms (apoE) with the variability of cognitive functions in the elderly, determined by Montreal Cognitive Assessmnet (MoCA) total score. The study was performed on a group of 695 elderly people (177 men and 518 women) tested by a battery of MoCA tests. Genotyping was carried out by real-time PCR using TaqMan probes. The analysis of genotypic variability associations with the nominal trait was performed by the Kruskel-Wallis and the median test nonparametric methods.It was shown that the rs429358*C allele carriers and protein isoforms e4/e4+e2/e4+e3/e4 carriers in comparison with the e3/e3 homozygous have the greatest risk of decreased cognitive abilities in old age (OR (95% CI) was 1.51 (1.09 - 2.10), c2 = 6.66, p = 0.01 and OR = 1.64, 95% CI (1.11 - 2.44), c2 = 6.76, p = 0.009, respectively). Probably, the revealed associations indicate to the presence of common genes and mechanisms for dementia and intellect with normal variability of cognitive functions inheritance.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>когнитивные способности</kwd><kwd>генетический полиморфизм</kwd><kwd>аполипопротеин Е</kwd><kwd>ассоциации</kwd><kwd>подверженность</kwd><kwd>пожилые люди</kwd><kwd>cognitive abilities</kwd><kwd>genetic polymorphism</kwd><kwd>apolipoprotein E</kwd><kwd>associations</kwd><kwd>susceptibility</kwd><kwd>elderly people</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">Mahley RW. Apolipoprotein E: cholesterol transport protein with expanded role in cell biology. Science. 1988;240:622-630.</mixed-citation><mixed-citation xml:lang="en">Mahley RW. Apolipoprotein E: cholesterol transport protein with expanded role in cell biology. 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