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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">bioph</journal-id><journal-title-group><journal-title xml:lang="ru">Biomedical Photonics</journal-title><trans-title-group xml:lang="en"><trans-title>Biomedical Photonics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2413-9432</issn><publisher><publisher-name>Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24931/2413-9432-2016-5-2-13-20</article-id><article-id custom-type="elpub" pub-id-type="custom">bioph-88</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Фотодинамическая терапия лейкоплакии слизистой оболочки полости рта с фотосенсибилизатором фотолон</article-title><trans-title-group xml:lang="en"><trans-title>Photodynamic therapy with photosensitizer photolon for oral leukoplakia</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>Истомин</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Istomin</surname><given-names>Yu. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лесной</p></bio><bio xml:lang="en"><p>Lesnoy</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Артемьева</surname><given-names>Т. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Artemyeva</surname><given-names>T. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лесной</p></bio><bio xml:lang="en"><p>Lesnoy</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Церковский</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tzerkovsky</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лесной</p></bio><bio xml:lang="en"><p>Lesnoy</p></bio><email xlink:type="simple">tzerkovsky@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Республиканский научно-практический центр онкологии и медицинской радиологии им. Н.Н. Александрова, Лесной, Республика Беларусь</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>N.N. Alexandrov National Cancer Centre of Belarus</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Республиканский научно-практический центр онкологии и медицинской радиологии им. Н.Н. Александрова, Лесной, Республика Беларусь</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>N.N. Alexandrov National Cancer Centre of Belarus</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2016</year></pub-date><volume>5</volume><issue>2</issue><fpage>13</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Истомин Ю.П., Артемьева Т.П., Церковский Д.А., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Истомин Ю.П., Артемьева Т.П., Церковский Д.А.</copyright-holder><copyright-holder xml:lang="en">Istomin Y.P., Artemyeva T.P., Tzerkovsky D.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.pdt-journal.com/jour/article/view/88">https://www.pdt-journal.com/jour/article/view/88</self-uri><abstract><p>Целью исследования являлась оценка переносимости, безопасности и непосредственных результатов лечения пациентов с лейкоплакией слизистой оболочки полости рта методом фотодинамической терапии с фотосенсибилизатором фотолон. В исследование включено 40 пациентов (7 мужчин, 33 женщины) с морфологически верифицированной лейкоплакией слизистой оболочки полости рта. Средний возраст – 55±14 лет. Суммарное количество пролеченных очагов – 109 (от 1 до 8). Фотолон вводили внутривенно капельно в дозах от 1,7 мг/кг до 2,5 мг/кг. Сеанс облучения (лазер «УПЛ ФДТ», Республика Беларусь, λ=660±5 нм) проводили через 2,5-3 ч после введения препарата: плотность энергии лазерного излучения варьировала от 25 до 100 Дж/см2 , плотность мощности лазерного излучения от 0,07 до 0,32 Вт/см2 , продолжительность облучения одного поля, в зависимости от размеров очага лейкоплакии – от 2 до 13,5 мин. Эффективность лечения оценивали через 1-2 мес после ФДТ на основании клинических данных. Полная регрессия патологически измененных очагов зафиксирована в 95% случаев (n=38), частичная – в 5% (n=2). Срок наблюдения варьирует от 1 до 30 мес. Полная эпителизация раневого дефекта получена в течение 3-6 нед после проведенного лечения. Полученные результаты позволяют рекомендовать фотодинамическую терапию пациентам с ограниченной или распространенной лейкоплакией полости рта как простой, хорошо переносимый и эффективный метод лечения.</p></abstract><trans-abstract xml:lang="en"><p>The objective – to assess tolerability, safety and immediate results of treatment of patients with oral leukoplakia using photodynamic therapy (PDT) with a photosensitizer photolon. The study included 40 patients (7 men, 33 women) with morphologically verified leukoplakia of the oral mucosa. The average age – 55±14 years. Number of treated foci – 109 (1 to 8). Photolon was administered intravenously at doses of 1.7-2.5 mg/kg. Photoirradiation («UPL PDT», Belarus, λ = 660±5 nm) was performed 2.5-3 h after administration: light exposure dose varied from 25 to 100 J/cm2, power density of 0.07 to 0.32 W/cm2, the duration of one field photoirradiation – from 2 to 13.5 min and according to its linear dimensions. The effectiveness of treatment was assessed 1-2 months after PDT by clinical data. Complete regression of foci recorded in 95% of cases (n=38), partial – in 5% (n=2).The follow-up period varied from 1 to 30 months. Full-epithelialization of the wound defect occurred within the period of 3-6 weeks after treatment. Photodynamic therapy may be recommended for patients with circumscribed or widespread oral leukoplakia as a simple, well-tolerated and effective option. Keywords: photodynamic therapy, photolon, oral leukoplakia.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фотодинамическая терапия</kwd><kwd>фотолон</kwd><kwd>лейкоплакия</kwd><kwd>полость рта</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Istomin Yu.P.</kwd><kwd>Artemyeva T.P.</kwd><kwd>Tzerkovsky D.A. Photodynamic therapy with photosensitizer photolon for oral leukoplakia</kwd><kwd>Biomedical Photonics</kwd><kwd>2016</kwd><kwd>T. 5</kwd><kwd>No. 2</kwd><kwd>pp. 13–20 (in Russian)</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">Van der Wall I. Oral leukoplakia, the ongoing discussion on definition and terminology // Med. Oral Patol. Oral Cir. Bucal. – 2015. – Vol. 20, No. 6. – P. 685-692.</mixed-citation><mixed-citation xml:lang="en">Van der Wall I. Oral leukoplakia, the ongoing discussion on definition and terminology, Med. Oral Patol. Oral Cir. Bucal., 2015, Vol. 20, No. 6, pp. 685-692.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Silverman S., Gorsky M., Lozada F. Oral leukoplakia and malignant transformation. 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