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BackДым от лесных пожаров связан с повреждением клеток мозга
Дым от лесных пожаров связан с повреждением клеток мозга
Health
Лента.ру5 hours agoHealth1 min readRussia

Дым от лесных пожаров связан с повреждением клеток мозга

Quick Look

  • Ученые выяснили, что дым от лесных пожаров активирует белок STING в астроцитах, вызывая воспаление, повреждающее нейроны.
  • Это может способствовать развитию нейродегенеративных заболеваний, таких как болезни Альцгеймера и Паркинсона.

AI-generated summary

Why It Matters

Ранее была обнаружена связь между длительным воздействием дыма от лесных пожаров и когнитивными нарушениями.

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Дым от лесных пожаров может запускать воспалительные процессы, способные повреждать клетки мозга и потенциально способствовать развитию нейродегенеративных заболеваний. Об этом сообщили ученые, чья работа опубликована в журнале NeuroToxicology.

Исследователи изучили воздействие частиц дыма на астроциты — клетки, которые поддерживают и защищают нейроны. Оказалось, что частицы повреждали ДНК астроцитов и активировали белок STING, выполняющий роль одного из элементов иммунной защиты организма.

Активация STING заставляла астроциты выделять воспалительные молекулы, которые в дальнейшем повреждали находящиеся рядом нейроны. Когда ученые заблокировали работу этого белка в доклинической модели, воспалительная реакция ослабла, а клетки мозга оказались лучше защищены.

Полученные результаты предлагают возможное объяснение ранее обнаруженной связи длительного воздействия дыма от лесных пожаров с когнитивными нарушениями и нейродегенеративными заболеваниями, включая болезни Альцгеймера и Паркинсона.

Open Questions

  • Какова эффективность блокировки белка STING у людей?
  • Какие концентрации дыма являются критическими для запуска воспаления?

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This article was originally published by Лента.ру.

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