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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54276</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общая биофизика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>General biophysics</subject>
    </subj-group>
    <subj-group>
     <subject>Общая биофизика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">THE ROLE OF PHOTOCHEMICAL TRANSFORMATIONS OF TETRAHYDROBIOPTERIN IN THE PATHOGENESIS AND PHOTOTHERAPY OF VITILIGO</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>РОЛЬ ФОТОХИМИЧЕСКИХ ПРЕВРАЩЕНИЙ ТЕТРАГИДРОБИОПТЕРИНА В ПАТОГЕНЕЗЕ И ФОТОТЕРАПИИ ВИТИЛИГО</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Телегина</surname>
       <given-names>Т А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Telegina</surname>
       <given-names>T A</given-names>
      </name>
     </name-alternatives>
     <email>telegina@inbi.ras.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Низамутдинов</surname>
       <given-names>А С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Nizamutdinov</surname>
       <given-names>A S</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Буглак</surname>
       <given-names>А А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Buglak</surname>
       <given-names>A A</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шавров</surname>
       <given-names>А Н</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shavrov</surname>
       <given-names>A N</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Лукинова</surname>
       <given-names>Е В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lukinova</surname>
       <given-names>E V</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Вечтомова</surname>
       <given-names>Ю Л</given-names>
      </name>
      <name xml:lang="en">
       <surname>Vechtomova</surname>
       <given-names>Yu L</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Крицкий</surname>
       <given-names>М С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kritsky</surname>
       <given-names>M S</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт биохимии им. А.Н. Баха, Федеральный исследовательский центр «Фундаментальные основы биотехнологии» РАН; Казанский федеральный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences; Kazan Federal University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Казанский федеральный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kazan Federal University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Санкт-Петербургский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">St. Petersburg State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Институт биохимии им. А.Н. Баха, Федеральный исследовательский центр «Фундаментальные основы биотехнологии» РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Казанский федеральный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kazan Federal University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Институт биохимии им. А.Н. Баха, Федеральный исследовательский центр «Фундаментальные основы биотехнологии» РАН; Казанский федеральный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences; Kazan Federal University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Институт биохимии им. А.Н. Баха, Федеральный исследовательский центр «Фундаментальные основы биотехнологии» РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2018-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2018</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2018-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2018</year>
   </pub-date>
   <volume>3</volume>
   <issue>2</issue>
   <fpage>255</fpage>
   <lpage>260</lpage>
   <history>
    <date date-type="received" iso-8601-date="2018-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2018</year>
    </date>
    <date date-type="accepted" iso-8601-date="2018-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2018</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54276/view">https://rusjbpc.ru/en/nauka/article/54276/view</self-uri>
   <abstract xml:lang="ru">
    <p>Нарушение меланогенеза ведёт к развитию ряда патологий, включая витилиго. Тетрагидробиоптерин (H4Bip) в качестве кофермента фенилаланингидроксилазы участвует в окислении фенилаланина в тирозин (предшественник меланина). H4Bip легко окисляется кислородом in vivo и in vitro . При витилиго наблюдается трёх-пятикратный de-novo синтез, его избыток и последующее автоокисление рассматриваются в качестве важных факторов в патогенезе витилиго. Мы показали, что птериновые продукты автоокисления (дигидроптерин (H2Ptr), дигидроксантоптерин, птерин) преобладают над биоптериновыми продуктами (дигидробиоптерин (H2Bip), биоптерин). Показали, что ультрафиолетовое (УФ) излучение ускоряет автоокисление H4Bip в присутствии окисленных производных, служащих фотосенсибилизаторами. Фотосенсибилизированное окисление H4Bip может вносить вклад в патогенез витилиго. Установили, что основной отличительной чертой фотоокисления H4Bip от его автоокисления является образование димеров дигидроптерина (H2Ptr)2 и дигидробиоптерина (H2Bip)2. Используя в качестве источников УФ излучения ксеноновые лампы и УФ перестраиваемые лазеры, в работе изучены зависимости реакции фотодимеризации от длины волны и интенсивности излучения. Показано, что облучение УФ лазером более эффективно по сравнению с облучением ксеноновой лампой. Установлено, что наибольшее количество димеров образуется при облучении раствора H4Bip излучением с длинами волн 308-312 нм. Полученные данные обсуждены в контексте УФ-В узкополосной фототерапии витилиго.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Melanogenesis disorder leads to several pathologies, including vitiligo. Tetrahydrobiopterin (H4Bip) as the phenylalanine 4-hydroxylase coenzyme catalyzes the oxidation of phenylalanine to tyrosine (a melanin precursor). H4Bip is easily oxidized by oxygen in vivo and in vitro . Vitiligo is accompanied by three-fivefold increased de-novo synthesis of H4Bip, its excess and its further oxidation are essential factors in the pathogenesis of vitiligo. We have demonstrated that pterin products of H4Bip autoxidation (dihydropterin (H2Ptr), dihydroxanthopterin and pterin) predominate over biopterin products (dihydrobiopterin (H2Bip) and biopterin). It was shown that ultraviolet (UV) irradiation accelerates the autoxidation while the products of oxidative degradation of H4Bip act as photosensitizers. Photosensitized oxidation of H4Bip can contribute to the pathogenesis of vitiligo. The main distinguishing feature of UV photooxidation of H4Bip from autoxidation was the formation of dihydropterin (H2Ptr)2 and dihydrobiopterin (H2Bip)2 dimers.. Here we reported on the dependences of the photodimerization reaction on the wavelength and intensity of radiation using xenon lamps and UV tunable lasers as sources of UV radiation. It was shown that UV irradiation with a laser is more efficient than that with xenon lamp. It was established that the greatest number of dimers were formed by irradiating the H4Bip solution by radiation with a wavelength in the range 308-312 nm. The data obtained are discussed in the context of UV-B narrowband vitiligo phototherapy.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>тетрагидробиоптерин</kwd>
    <kwd>УФ облучение</kwd>
    <kwd>автоокисление тетрагидробиоптерина</kwd>
    <kwd>фотоокисление тетрагидробиоптерина</kwd>
    <kwd>азациклобутановые димеры</kwd>
    <kwd>фототерапия витилиго</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>tetrahydrobiopterin</kwd>
    <kwd>UV irradiation</kwd>
    <kwd>autoxidation of tetrahydrobiopterin</kwd>
    <kwd>photooxidation of tetrahydrobiopterin</kwd>
    <kwd>azacyclobutane dimers</kwd>
    <kwd>vitiligo phototherapy</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
 <back>
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