Структурно-функциональные изменения в тканях сердца гетеро- и гомойотермных животных при искусственном и естественном гипометаболизме

Авторы

  • Viktoria V. Lomako Институт проблем криобиологии и криомедицины НАН Украины, г. Харьков
  • Alexsandr V. Shilo Институт проблем криобиологии и криомедицины НАН Украины, г. Харьков
  • Igor F. Kovalenko Институт проблем криобиологии и криомедицины НАН Украины, г. Харьков

DOI:

https://doi.org/10.15407/cryo26.04.308

Ключевые слова:

гипометаболизм, гибернация, гомойотермия, гетеротермия, гистология миокарда, крысы, хомяки

Аннотация

При иÑкуÑÑтвенном гипометаболизме (комбинированное дейÑтвие гипокÑии, гиперкапнии и гипотермии) ÑнижалиÑÑŒ температура тела(ТТ) до(17 ± 1) и(16 ± 1)°С и чаÑтота Ñердечных Ñокращений до(99 ± 20) и(66 ± 16) ударов/мин у ÐºÑ€Ñ‹Ñ Ð¸ хомÑков ÑоответÑтвенно, а при гибернации – до(8 ± 1)°С и5–13 ударов/мин. Ð’ ткани миокарда при Ñтом наблюдалиÑÑŒ Ð³Ð¸Ð¿ÐµÑ€ÐµÐ¼Ð¸Ñ Ð²ÐµÐ½, артерий и капиллÑров; увеличение периваÑкулÑрных и интерÑтициальных проÑтранÑтв; в кардиомиоцитах – фокально признаки зерниÑтой, гидропичеÑкой и гиалиново-капельной диÑтрофий, а также множеÑтво Ñдер на разных ÑтадиÑÑ… некробиоза(пикноз, рекÑÐ¸Ñ Ð¸ лизиÑ). Кроме Ñтого, через 2 ч поÑле гипометаболизма выÑвлÑлиÑь  тромбы в ÑоÑудах, безъÑдерные зоны некроза, у чаÑти кардиомиоцитов крыÑ– еще и большие Ñдра. Ð˜Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð² миокарде ÑохранÑлиÑÑŒ и через 24 ч, но Ð±Ð¾Ð»ÑŒÑˆÐ°Ñ Ð¸Ñ… чаÑÑ‚ÑŒ была обратимой поÑле нормализации ТТ и кровообращениÑ, имела адаптивный характер, а Ð°ÐºÑ‚Ð¸Ð²Ð°Ñ†Ð¸Ñ Ð½ÐµÐºÑ€Ð¾Ð±Ð¸Ð¾Ñ‚Ð¸Ñ‡ÐµÑких процеÑÑов, как извеÑтно, ÑпоÑобÑтвовует уÑкорению физиологичеÑкой регенерации.

Биографии авторов

Viktoria V. Lomako, Институт проблем криобиологии и криомедицины НАН Украины, г. Харьков

Отдел криофизиологии

Alexsandr V. Shilo, Институт проблем криобиологии и криомедицины НАН Украины, г. Харьков

Отдел криофизиологии

Igor F. Kovalenko, Институт проблем криобиологии и криомедицины НАН Украины, г. Харьков

Отдел криофизиологии

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Загрузки

Опубликован

2016-12-23

Как цитировать

Lomako, V. V., Shilo, A. V., & Kovalenko, I. F. (2016). Структурно-функциональные изменения в тканях сердца гетеро- и гомойотермных животных при искусственном и естественном гипометаболизме. Проблемы криобиологии и криомедицины, 26(4), 308–321. https://doi.org/10.15407/cryo26.04.308

Выпуск

Раздел

Теоретическая и экспериментальная криобиология