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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Medical Radiology and radiation safety</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Medical Radiology and radiation safety</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Медицинская радиология и радиационная безопасность</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1024-6177</issn>
   <issn publication-format="online">2618-9615</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">38945</article-id>
   <article-id pub-id-type="doi">10.12737/1024-6177-2020-65-3-53-58</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Неионизирующее излучение</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Non-ionizing radiation</subject>
    </subj-group>
    <subj-group>
     <subject>Неионизирующее излучение</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Postradiation Effects of Low Intensity Electromagnetic Radiation  with a Frequency of 900 MHz in Rat Liver</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Постлучевые эффекты низкоинтенсивного электромагнитного излучения с частотой 900 МГц в печени крыс</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Петросян</surname>
       <given-names>М. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Petrosyan</surname>
       <given-names>M. S.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Нерсесова</surname>
       <given-names>Л. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Nersesova</surname>
       <given-names>L. S.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Каралова</surname>
       <given-names>Е. М.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Karalova</surname>
       <given-names>E. M.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Аветисян</surname>
       <given-names>А. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Avetisyan</surname>
       <given-names>A. S.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Аброян</surname>
       <given-names>Л. О.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Abroyan</surname>
       <given-names>L. O.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Акопян</surname>
       <given-names>Л. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Akopian</surname>
       <given-names>L. A.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Газарянц</surname>
       <given-names>М. Г.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Gazaryants</surname>
       <given-names>M. G.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Акопян</surname>
       <given-names>Ж. И.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Akopian</surname>
       <given-names>J. I.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-8"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
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    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-8">
    <aff>
     <institution xml:lang="ru">Институт молекулярной биологии НАН</institution>
     <city>Ереван</city>
     <country>Армения</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Molecular Biology of NAS</institution>
     <city>Erevan</city>
     <country>Armenia</country>
    </aff>
   </aff-alternatives>
   <volume>65</volume>
   <issue>3</issue>
   <fpage>53</fpage>
   <lpage>58</lpage>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/38945/view">https://naukaru.ru/en/nauka/article/38945/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: Исследование изменений активности креатинкиназы (КК) печени и сыворотки крови крыс и ядерно-ядрышкового аппарата гепатоцитов, индуцированных действием низкоинтенсивного электромагнитного излучения с параметрами 900 МГц и плотностью потока энергии 25 мкВт/см2, характерными для мобильных телефонов. &#13;
Материал и методы: Опыты проводили на белых беспородных крысах-самцах 6-месячного возраста, массой тела 180–200 г. В качестве источника излучения с частотой 900 МГц использовали генераторный блок панорамного измерителя Х1-42. Активность КК в сыворотке крови и экстрактах печени определяли спектрофотометрически по накоплению свободного креатина. На основании данных по содержанию ДНК в гепатоцитах крыс, соотнесенных к эталону, выявляли распределение гепатоцитов по плоидности и определяли соотношение эу- и анэуплоидных клеток. &#13;
Результаты: Показано, что 2-часовое однократное общее облучение крыс вызывает более выраженные изменения уровней активности как печеночной, так и сывороточной КК, чем равноценное по времени дробное облучение: при этом фермент проявляет значительные адаптационные свойства. Уменьшение среднего содержания ДНК ядер и ядрышек и среднего число ядрышек на ядро, а также увеличение количества безьядрышковых ядер после однократного радиочастотного облучения свидетельствует об угнетении транскрипционной активности гепатоцитов. В то же время пострадиационное увеличение количества гиподиплоидных клеток, половину из которых составляют безьядрышковые гепатоциты, а также возрастание количества триплоидных клеток, сопровождающееся уменьшением числа тетраплоидных гепатоцитов и исчезновением гипертетраплоидных гепатоцитов, свидетельствуют о гибели значительного количества гепатоцитов. &#13;
Заключение: Активность КК печени крыс чувствительна к действию как однократного, так и дробного облучения. При этом биологический эффект однократного облучения более выражен. Динамика пострадиационных изменений, происходящих в популяции гепатоцитов при однократном облучении крыс свидетельствует об угнетении транскрипционной активности гепатоцитов и гибели значительной части их.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: To study the changes in the activity of the liver and blood serum creatine kinase (KK) and the nucleus-nucleolus apparatus of hepatocytes of rats, subjected to the low-intensity electromagnetic radiation of 900 MHz and 25 µW/cm2 energy flux density, typical for a range of mobile phones. &#13;
Material and methods: The experiments were carried out on white outbred male rats of 6 months of age, weighing 180–200g. The generator Panoramic X1-42 was used as a source of radiation having a frequency of 900 MHz. The activity of CK in the blood serum and liver extracts respectively was determined spectrophotometrically, based on the accumulation of free creatine. Using the extent of the DNA content in rat hepatocytes relative to the accepted standard, the distribution of hepatocytes in ploidy (measured in percentage poins) was detected; so was determined the ratio of eu- and aneuploid cells. &#13;
Results: It appears that the two-hour single total exposure of rats causes more substantial changes in the activity levels of rats both liver and serum creatine kinase than the total time-wise comparable fractional exposure; while the enzyme exhibits signs of significant adaptation. A decrease in the average DNA content of the nucleus and nucleolus, as well as the average number of nucleolus per nucleus, along with an increase in the number of nucleolus-free nuclei after a single radiofrequency irradiation act indicates certain inhibition of the transcriptional activity of hepatocytes. At the same time, a post-radiation increase of hypodiploid cells, half of which are nucleolus-free hepatocytes, as well as an increase in the number of triploid cells, accompanied by a decrease in the number of tetraploid hepatocytes and the disappearance of hypertetraploid hepatocytes, indicate the incidence of death of a significant number of hepatocytes. &#13;
Conclusion: The rat liver CK is sensitive to the action of both single low-intensity electromagnetic radiation with a frequency of 900 MHz and that dispersed through fractional exposure: the biological effect of a single exposure is more pronounced. The dynamics of the post-radiation changes occurring in the hepatocyte population upon their single radiofrequency irradiation indicates certain inhibition of the transcriptional activity of the hepatocytes, as well as the incidence of death of a significant number of hepatocytes.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>электромагнитное излучение</kwd>
    <kwd>низкая интенсивность</kwd>
    <kwd>частота 900 МГц</kwd>
    <kwd>однократное и дробное облучение</kwd>
    <kwd>креатинкиназа</kwd>
    <kwd>ядерно-ядрышковый аппарат</kwd>
    <kwd>печень</kwd>
    <kwd>сыворотка крови</kwd>
    <kwd>крысы</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>electromagnetic radiation</kwd>
    <kwd>low intensity</kwd>
    <kwd>frequency 900 MHz</kwd>
    <kwd>single and fractional irradiation</kwd>
    <kwd>creatine kinase</kwd>
    <kwd>nucleus-nucleolar apparatus</kwd>
    <kwd>liver</kwd>
    <kwd>blood serum</kwd>
    <kwd>rats</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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