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Electroacupuncture at "Baihui, Yintang and Shuigou" Acupoints Improves Post-Stroke Cognitive Impairment in Mice.
Studies in Health Technology and Informatics 2023 November 24
OBJECTIVE: To study the effect and mechanism of electroacupuncture at "Baihui, Yintang and Shuigou" acupoints on learning and memory in Post-Stroke Cognitive Impairment (PSCI) mice.
METHODS: 52 male C57BL/6 mice were used to establish a MACO model by using middle cerebral artery occlusion (n=38), while the Sham only ligated at the distal end of the external carotid artery (n=14). After 28 days, the MCAO was divided into three groups based on the escape latency of Morris water maze: non cognitive impairment (MNP), post-stroke cognitive impairment (MP), and electroacupuncture intervention group (MPEA). In the MPEA, electroacupuncture at "Baihui and Yintang" acupoints was performed for 20 minutes (density wave, 2/15HZ and 1mA) supplemented by acupuncture at "Shuigou" acupoints once a day with a 6-day course of treatment. The intervention last for 2 courses with a 1-day interval. Morris water maze was used to detect the cognitive function of mice in each group; Nissl staining was used to observe hippocampal neurons; Western blot was used to detect the expression of GluA1, Syp, and Syt-1 in the affected hippocampus; IHC was used to detect the expression of Syp in the CA1 region of the contralateral hippocampus.
CONCLUSION: Acupuncture at points "Baihui, Yintang, and Shuigou" can improve the learning and memory abilities of PSCI mice, and its mechanism is related to synaptic plasticity of hippocampus.
METHODS: 52 male C57BL/6 mice were used to establish a MACO model by using middle cerebral artery occlusion (n=38), while the Sham only ligated at the distal end of the external carotid artery (n=14). After 28 days, the MCAO was divided into three groups based on the escape latency of Morris water maze: non cognitive impairment (MNP), post-stroke cognitive impairment (MP), and electroacupuncture intervention group (MPEA). In the MPEA, electroacupuncture at "Baihui and Yintang" acupoints was performed for 20 minutes (density wave, 2/15HZ and 1mA) supplemented by acupuncture at "Shuigou" acupoints once a day with a 6-day course of treatment. The intervention last for 2 courses with a 1-day interval. Morris water maze was used to detect the cognitive function of mice in each group; Nissl staining was used to observe hippocampal neurons; Western blot was used to detect the expression of GluA1, Syp, and Syt-1 in the affected hippocampus; IHC was used to detect the expression of Syp in the CA1 region of the contralateral hippocampus.
CONCLUSION: Acupuncture at points "Baihui, Yintang, and Shuigou" can improve the learning and memory abilities of PSCI mice, and its mechanism is related to synaptic plasticity of hippocampus.
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