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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">medsovet</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский Совет</journal-title><trans-title-group xml:lang="en"><trans-title>Meditsinskiy sovet = Medical Council</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-701X</issn><issn pub-type="epub">2658-5790</issn><publisher><publisher-name>REMEDIUM GROUP Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21518/2079-701X-2022-16-5-104-110</article-id><article-id custom-type="elpub" pub-id-type="custom">medsovet-6798</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>ПРЕГРАВИДАРНАЯ ПОДГОТОВКА И БЕРЕМЕННОСТЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PREGRAVID PREPARATION AND PREGNANCY</subject></subj-group></article-categories><title-group><article-title>Оценка скрытого дефицита магния у беременных</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of subclinical magnesium deficiency in pregnant women</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4689-3591</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Орлова Светлана Владимировна, д.м.н., профессор, заведующая кафедрой диетологии и клинической нутрициологии</p><p>117198, Москва, ул. Миклухо-Маклая, д. 6</p></bio><bio xml:lang="en"><p>6, Miklukho-Maklai St., Moscow, 117198</p></bio><email xlink:type="simple">orlova-sv@rudn.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3220-0333</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никитина Елена Александровна, к.м.н., доцент кафедры диетологии и клинической нутрициологии</p><p>117198, Москва, ул. Миклухо-Маклая, д. 6</p></bio><bio xml:lang="en"><p>6, Miklukho-Maklai St., Moscow, 117198</p></bio><email xlink:type="simple">nikitina-ea1@rudn.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0548-3414</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балашова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Balashova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Балашова Наталья Валерьевна, к.б.н., ассистент, доцент кафедры диетологии и  клинической нутрициологии</p><p>117198, Москва, ул. Миклухо-Маклая, д. 6</p></bio><bio xml:lang="en"><p>6, Miklukho-Maklai St., Moscow, 117198</p></bio><email xlink:type="simple">balashovaN77@mail.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>Исаев</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Isaev</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исаев Андрей Николаевич, генеральный директор</p><p>127018, Москва, 4-й Стрелецкий проезд, д. 4, корп. 1</p></bio><bio xml:lang="en"><p> 4, Bldg. 1, 4th Streletsky Proezd, Moscow, 127018</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5758-8552</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ершов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ershov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ершов Антон Валерьевич, д.м.н., профессор кафедры патофизиологии</p><p>119991, Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p> 8, Bldg. 2, Trubetskaya St., Moscow, 119991</p></bio><email xlink:type="simple">salavatprof@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5250-5911</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пронина</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Pronina</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пронина Олеся Евгеньевна, врач-эндокринолог, диетолог, гинеколог</p><p>115054, Москва ул. Валовая, д. 32/75, стр. 2</p></bio><bio xml:lang="en"><p>32/75, Bldg. 2, Valovaya St., Moscow, 115054</p></bio><email xlink:type="simple">pronina.doctor@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5203-1082</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Водолазкая</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vodolazkaya</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Водолазкая Ангелина Николаевна, врач-диетолог, Австрийская клиника микронутриентной терапии Biogena</p><p>121087, Москва, Береговой проезд, д. 5, корп. 2</p></bio><bio xml:lang="en"><p>5/2, Beregovoy Proezd, Moscow, 12108</p></bio><email xlink:type="simple">drvodolazkaya@gmail.com</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3811-9459</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Прокопенко</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Prokopenko</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Прокопенко Елена Валерьевна, врач-эндокринолог, диетолог, ведущий менеджер проектов медицинского департамента</p><p>125047, Москва, ул. 4-я Тверская-Ямская, д. 16, корп. 3</p></bio><bio xml:lang="en"><p>16, Bldg. 3, 4th Tverskaya-Yamskaya St., Moscow, 125047</p></bio><email xlink:type="simple">elvprokopenko@gmail.com</email><xref ref-type="aff" rid="aff-6"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский университет дружбы народов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «ДНКОМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>“DNКOM” LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Первый Московский государственный медицинский университет имени И.М. Сеченова (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Клиника «Медгород»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Medical Center “Medgorod”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Австрийская клиника микронутриентной терапии Biogena</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Аustrian Clinic of Micronutrient Therapy Biogena</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>ООО «ИНВИТРО»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>“INVITRO” LLC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>20</day><month>04</month><year>2022</year></pub-date><volume>0</volume><issue>5</issue><fpage>104</fpage><lpage>110</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Орлова С.В., Никитина Е.А., Балашова Н.В., Исаев А.Н., Ершов А.В., Пронина О.Е., Водолазкая А.Н., Прокопенко Е.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Орлова С.В., Никитина Е.А., Балашова Н.В., Исаев А.Н., Ершов А.В., Пронина О.Е., Водолазкая А.Н., Прокопенко Е.В.</copyright-holder><copyright-holder xml:lang="en">Orlova S.V., Nikitina E.A., Balashova N.V., Isaev A.N., Ershov A.V., Pronina O.E., Vodolazkaya A.N., Prokopenko E.V.</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.med-sovet.pro/jour/article/view/6798">https://www.med-sovet.pro/jour/article/view/6798</self-uri><abstract><sec><title>Введение</title><p>Введение. Вопрос соотношения кальция и магния в организме в научных кругах обсуждается не так часто, как роль каждого из этих элементов. Еще меньше внимания специалисты уделяют соотношению минералов в организме беременных. Цель. Провести анализ содержания магния и кальция в крови беременных на разных сроках гестации и оценить отношение «магний/кальций» с целью установления расчетного коэффициента.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование были включены 272 беременные женщины (возраст 31,85 ± 5,0 года) на разных сроках гестации. Обследуемые не предъявляли жалоб, характерных для клиники дефицита магния и кальция. Биохимический анализ крови (определение концентрации общего кальция, магния) проводили в лаборатории ООО «ДНКОМ» в г. Москве. Забор крови из локтевой вены осуществляли по стандартной методике утром натощак после 10–12 ч голодания.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. По данным биохимического анализа концентрация общего кальция в сыворотке крови составила (M ± SD) 2,28 ± 0,11 ммоль/л, общего магния – 0,78 ± 0,07 ммоль/л, соотношения «магний/кальций» – 0,34 ± 0,03. Средние концентрации кальция и  магния были достоверно ниже у  женщин во  II и  III триместрах по  сравнению с  I  триместром (р &lt; 0,001). Снижение концентрации магния ниже оптимальных для беременных 0,8 ммоль/л наблюдалось у 37,5% женщин в I триместре, у 77,3% и 84,1% – во II и III триместрах соответственно. Концентрация магния в сыворотке менее 0,7 ммоль/л, отражающая глубокий дефицит магния, была выявлена в I триместре у 3,6% женщин, во II триместре – у 11,3%, в III триместре – у 15,9% беременных. Гипокальциемия (концентрация общего кальция менее 2,15 ммоль/л) регистрировалась у 0,9, 11,3 и 22,3% беременных в I, II и III триместрах. При расчете коэффициента «магний/кальций» субклинический дефицит магния выявлялся у 96,7% беременных на протяжении всей беременности. Выводы. Полученные данные свидетельствуют о необходимости прегравидарного обследования и своевременной коррекции метаболических нарушений. &gt;&lt; 0,001). Снижение концентрации магния ниже оптимальных для беременных 0,8 ммоль/л наблюдалось у 37,5% женщин в I триместре, у 77,3% и 84,1% – во II и III триместрах соответственно. Концентрация магния в сыворотке менее 0,7 ммоль/л, отражающая глубокий дефицит магния, была выявлена в I триместре у 3,6% женщин, во II триместре – у 11,3%, в III триместре – у 15,9% беременных. Гипокальциемия (концентрация общего кальция менее 2,15 ммоль/л) регистрировалась у 0,9, 11,3 и 22,3% беременных в I, II и III триместрах. При расчете коэффициента «магний/кальций» субклинический дефицит магния выявлялся у 96,7% беременных на протяжении всей беременности.</p></sec><sec><title>Выводы</title><p>Выводы. Полученные данные свидетельствуют о необходимости прегравидарного обследования и своевременной коррекции метаболических нарушений.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title> </title><p> </p></sec><sec><title>Introduction</title><p>Introduction. The question of the ratio of calcium and magnesium in the body in the scientific community is not discussed as often as the role of each of these elements. Experts pay even less attention to the ratio of minerals in the body of pregnant women.</p></sec><sec><title>Aim</title><p>Aim. To analyze the content of magnesium and calcium in the blood of pregnant women at different gestation periods and evaluate the ratio of magnesium / calcium in order to establish the calculated coefficient.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. 272 pregnant women (age 31.85 ± 5.0 years) at different gestation periods were included in the study. The subjects did not complain, typical for the clinic of magnesium and calcium deficiency. All surveyed gave written consent to the study. A biochemical blood test (determination of the concentration of total calcium, magnesium) was carried out in the laboratory of LLC DNKOM in Moscow. Blood sampling from the cubital vein was carried out according to the standard method in the morning on an empty stomach after 10–12 hours of fasting.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. Concentration of  total calcium in  the serum was (M  ±  SD) 2.28  ±  0.11  mmol/l, total magnesium  – 0.78 ± 0.07 mmol/l, magnesium/calcium ratio – 0.34 ± 0.03. Mean concentrations of calcium and magnesium were significantly lower in women in the II and III trimesters compared with the I trimester (p &lt; 0.001). A decrease in magnesium concentration below the optimal for pregnant women of 0.8 mmol / l was observed in 37.5% of women in the first trimester, in 77.3% and 84.1% in the II and III trimesters, respectively. Serum magnesium concentration less than 0.7 mmol / l, reflecting a profound magnesium deficiency, was detected in the first trimester in 3.6% of women, in the second trimester – in 11.3% of women, in the third trimester – in 15.9% of pregnancies. Hypocalcemia (total calcium concentration less than 2.15 mmol/l) was recorded in 0.9%, 11.3% and 22.3% of pregnant women in the I, II and III trimesters. When calculating the magnesium/calcium ratio, subclinical magnesium deficiency was detected in 96.7% of pregnant women throughout pregnancy. Conclusion. The data obtained indicate the need for pregravid examination and early correction of metabolic disorders.&gt;&lt; 0.001). A decrease in magnesium concentration below the optimal for pregnant women of 0.8 mmol / l was observed in 37.5% of women in the first trimester, in 77.3% and 84.1% in the II and III trimesters, respectively. Serum magnesium concentration less than 0.7 mmol / l, reflecting a profound magnesium deficiency, was detected in the first trimester in 3.6% of women, in the second trimester – in 11.3% of women, in the third trimester – in 15.9% of pregnancies. Hypocalcemia (total calcium concentration less than 2.15 mmol/l) was recorded in 0.9%, 11.3% and 22.3% of pregnant women in the I, II and III trimesters. When calculating the magnesium/calcium ratio, subclinical magnesium deficiency was detected in 96.7% of pregnant women throughout pregnancy.</p></sec><sec><title>Conclusion</title><p>Conclusion. The data obtained indicate the need for pregravid examination and early correction of metabolic disorders</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>беременность</kwd><kwd>кальций</kwd><kwd>магний</kwd><kwd>дефицит</kwd><kwd>прегравидарное обследование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pregnancy</kwd><kwd>calcium</kwd><kwd>magnesium</kwd><kwd>deficiency</kwd><kwd>pre-conceptional examination</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">Catling L.A., Abubakar I., Lake I.R., Swift L., Hunter P.R. A systematic review of analytical observational studies investigating the association between cardiovascular disease and drinking water hardness. J Water Health. 2008;6(4):433–442. https://doi.org/10.2166/wh.2008.054.</mixed-citation><mixed-citation xml:lang="en">Catling L.A., Abubakar I., Lake I.R., Swift L., Hunter P.R. 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