Кортикальная реорганизация при рассеянном склерозе

I. A. Zavalishin1, A. V. Peresedova1, M. V. Krotenkova1, O. V. Pugacheva1, O. V. Trifonova1
1Научный центр неврологии РАМН, Москва, Россия

Аннотация


Функциональная магнитно-резонансная томография (фМРТ) является новым методом, способствующим изучению функций мозга и взаимоотношений между физиологической активностью и анатомической локализацией. В настоящее время реорганизация коры рассматривается как один из возможных факторов, обусловливающих улучшение или поддержание функции в случае необратимого повреждения мозга при рассеянном склерозе (РС). Функциональные кортикальные изменения коры были выявлены при всех фенотипах РС с использованием различных парадигм фМРТ, однако наиболее изучена двигательная система. Показана вариабельность функциональной реорганизации двигательной коры при РС в зависимости от стадии болезни. Кортикальная реорганизация играет роль в ограничении влияния структурных повреждений при РС; напротив, нарушение этих пластических механизмов может обусловливать развитие необратимого неврологического дефицита по мере прогрессирования болезни. Дальнейшие фМРТ-исследования в динамике позволят оценить изменения функциональной активности мозга при различной выраженности неврологического дефицита и различном характере регресса симптомов РС. Улучшение кортикальной адаптивной пластичности представляет собой потенциально значимое направление реабилитации больных РС.

Ключевые слова

рассеянный склероз; кортикальная реорганизация; функциональная МРТ

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