Цитология, 2023, T. 65, № 5, стр. 490-498
Влияние перинатальной гипоксии (асфиксии) на распределение субъединицы α1 GABAA-рецептора в неокортексe новорожденных крыс
Л. И. Хожай *
Институт физиологии им. И.П. Павлова РАН
199034 Санкт-Петербург, Россия
* E-mail: astarta0505@mail.ru
Поступила в редакцию 14.04.2023
После доработки 15.05.2023
Принята к публикации 21.06.2023
- EDN: DIJGRD
- DOI: 10.31857/S004137712305005X
Полные тексты статей выпуска доступны в ознакомительном режиме только авторизованным пользователям.
Аннотация
Цель работы заключалась в исследовании распределения субъединицы α1 GABAA-рецептора в слоях неокортекса крыс в неонатальный период после воздействия гипоксии. Воздействие гипоксии на мозг новорожденных крыс осуществляли на 2-е неонатальные сут в течение 1 ч при содержании кислорода в дыхательной смеси 7.8%. Для выявления субъединицы α1 GABAA-рецептора использовали иммуногистохимическую реакцию. Содержание белка оценивали по плотности иммунного окрашивания продукта реакции в цитоплазме и отростках нейронов. Изучали соматосенсорную область неокортекса на 5 и 10 неонатальные сутки (П5, П10). Установлено, что на ранних сроках неонатального периода в неокортексе присутствует значительная популяция молодых нейронов, в цитоплазме которых иммуногистохимически выявляется субъединица α1, входящая в состав GABAA-рецептора. К концу неонатального периода у контрольных животных плотность окрашивания продукта иммуногистохимического выявления GABAAα1 в слоях неокортекса существенно повышается. Воздействие перинатальной гипоксии вызывает сокращение числа нейронов, содержащих субъединицу α1 GABAA-рецептора и значительное снижение плотности иммуногистохимического окрашивания во всех слоях неокортекса.
Полные тексты статей выпуска доступны в ознакомительном режиме только авторизованным пользователям.
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https://doi.org/10.1016/j.neuroscience.2010.11.045
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