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Abstract #3014

Effects of Reduced Cerebral Blood Flow on Neuronal Activity and Anxiety in a longitudinal mouse model of UCCAO

Jiaxin Zheng1, Qianqian Bi2, Xuancheng Xu3, Peng Shi2, and Li Zhao1
1College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China, 2Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China, 3Department of Neurology, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, China

Synopsis

Keywords: Small Animals, Arterial spin labelling

Motivation: The longitudinal effects of blood flow changes in carotid artery occlusion are unclear.

Goal(s): To evaluate the cerebral blood flow and behavior changes after ischemic brain injury in a mice model.

Approach: Cerebral blood flow was investigated longitudinally using ASL in mice with unilateral common carotid artery occlusion (UCCAO). Immunohistochemistry and behavioral experiments were conducted to elucidate reperfusion mechanisms after ischemia.

Results: In UCCAO mice, blood flow on the ipsilateral side recovered by day 21, while contralateral blood supply recovered within 3 days. C-FOS staining at 3 days post-UCCAO indicated S1BF neuron activation, and behavioral assessments revealed signs of anxiety.

Impact: Longitudinal blood flow measurements using ASL offer a reliable approach to investigating the mechanisms underlying blood flow recovery following carotid artery occlusion.

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