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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "https://jats.nlm.nih.gov/publishing/1.3/JATS-journalpublishing1-3.dtd">
<article article-type="meeting-report" dtd-version="1.3" xml:lang="en">
  <front xmlns:xlink="http://www.w3.org/1999/xlink">
    <journal-meta>
      <journal-title-group>
        <journal-title>St. Petersburg Polytechnic University Journal: Physics and Mathematics</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Научно-технические ведомости СПбГПУ. Физико-математические науки</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn pub-type="epub">2304-9782, 2618-8686, 2405-7223</issn>
    </journal-meta>
    <article-meta xmlns:xlink="http://www.w3.org/1999/xlink">
      <article-id pub-id-type="publisher-id">58</article-id>
      <article-id pub-id-type="doi">10.18721/JPM.153.258</article-id>
      <title-group>
        <article-title>Oocyte enucleation by 795 nm femtosecond laser is a precise and effective method of recipient cytoplast preparation</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Энуклеация ооцитов с помощью фемтосекундного лазера с длиной волны 795 нм – точный и эффективный метод подготовки реципиентного цитопласта</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Osychenko</surname>
            <given-names>Alina</given-names>
          </name>
          <email>alina.chemphys@gmail.com</email>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Zalessky</surname>
            <given-names>Aleksandr</given-names>
          </name>
          <email>aleksandr.zalesskij@phystech.edu</email>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Tochilo</surname>
            <given-names>Uliana</given-names>
          </name>
          <email>yanulyana@gmail.com</email>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Martirosyan</surname>
            <given-names>David</given-names>
          </name>
          <email>petrosyan359@gmail.com</email>
        </contrib>
      </contrib-group>
      <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-12-01">
        <day>01</day>
        <month>12</month>
        <year>2022</year>
      </pub-date>
      <volume>15</volume>
      <issue>3.2</issue>
      <fpage>317</fpage>
      <lpage>320</lpage>
      <self-uri xmlns:xlink="http://www.w3.org/1999/xlink" content-type="pdf" xlink:href="https://physmath.spbstu.ru/userfiles/files/articles/2022/3.2/58_P_3_2_15_2022-317-320.pdf"/>
      <abstract xml:lang="en">
        <p>Oocyte enucleation by femtosecond (fs) laser radiation is low-invasive and effective method of recipient cytoplast preparation. We have already demonstrated an ability to completely eliminate the metaphase plate by the fs laser without significant oocyte morphology and viability impairment. Considering further development of femtosecond laser oocyte enucleation for artificial reproductive technologies in humans and for the somatic cell nuclear transfer in mammals, the persistence of any DNA fragments after the fs laser enucleation must be studied thoroughly. In this work we revealed the remains of the metaphase plate by super resolution confocal microscopy after the laser  enucleation of mouse oocytes at metaphase II stage. The laser was set up on 795 nm in 80 MHz mode with 0,5 nJ pulse energy. By the super resolution microscopy (Airyscan 2) we have detected minor fragments of the metaphase plate in the laser-exposed oocytes. However, the careful laser treatment is able to provide the recipient cytoplast without any detectable DNA fragments.</p>
      </abstract>
      <kwd-group xml:lang="en">
        <kwd>recipient cytoplast</kwd>
        <kwd>femtosecond laser</kwd>
        <kwd>super resolution microscopy</kwd>
      </kwd-group>
    </article-meta>
  </front>
</article>
