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Okanin from Coreopsis tinctoria Nutt. alleviates cognitive impairment in bilateral common carotid artery occlusion mice by regulating the miR-7/NLRP3 axis in microglia

Cognitive impairment is the main clinical feature following stroke, and microglia-mediated inflammatory response is a major contributor to it. Nutt., an edible chrysanthemum, is commonly used as a functional ingredient in healthcare beverages and food. Okanin, the main active ingredient of Nutt. flo...

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Published in:Food & function 2023-01, Vol.14 (1), p.369-387
Main Authors: Mi, Yan, Xu, Jikai, Shi, Ruijia, Meng, Qingqi, Xu, Libin, Liu, Yeshu, Guo, Tingting, Zhou, Di, Liu, Jingyu, Li, Wei, Li, Ning, Hou, Yue
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cited_by cdi_FETCH-LOGICAL-c315t-eae4fbeb78b7a8aad4134068b3b6e9f5e0e32db95d01c762b9c8dff76b70d6443
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container_title Food & function
container_volume 14
creator Mi, Yan
Xu, Jikai
Shi, Ruijia
Meng, Qingqi
Xu, Libin
Liu, Yeshu
Guo, Tingting
Zhou, Di
Liu, Jingyu
Li, Wei
Li, Ning
Hou, Yue
description Cognitive impairment is the main clinical feature following stroke, and microglia-mediated inflammatory response is a major contributor to it. Nutt., an edible chrysanthemum, is commonly used as a functional ingredient in healthcare beverages and food. Okanin, the main active ingredient of Nutt. flower, inhibits microglial activation. However, the role of okanin in cognitive impairment following ischemic stroke is still unknown. In this study, we investigated the effect of okanin on ischemic stroke and its underlying mechanism both and . Okanin was found to attenuate cognitive impairment in bilateral common carotid artery occlusion (BCCAO) mice, inhibit neuronal loss and microglial activation, decrease NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome activation, and increase miR-7 expression. Okanin suppressed NLRP3 inflammasome activation in oxygen-glucose deprivation (OGD) and lipopolysaccharide (LPS)-stimulated microglia by increasing miR-7 expression and inhibited microglia-induced neuronal injury. This study provides new insights into the role of okanin in ischemic stroke and shows that the miR-7/NLRP3 axis plays an important role in mediating the beneficial effects of okanin on cerebral ischemia. These findings suggest that okanin has great potential as a functional food for stroke recovery.
doi_str_mv 10.1039/d2fo01476a
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Nutt., an edible chrysanthemum, is commonly used as a functional ingredient in healthcare beverages and food. Okanin, the main active ingredient of Nutt. flower, inhibits microglial activation. However, the role of okanin in cognitive impairment following ischemic stroke is still unknown. In this study, we investigated the effect of okanin on ischemic stroke and its underlying mechanism both and . Okanin was found to attenuate cognitive impairment in bilateral common carotid artery occlusion (BCCAO) mice, inhibit neuronal loss and microglial activation, decrease NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome activation, and increase miR-7 expression. Okanin suppressed NLRP3 inflammasome activation in oxygen-glucose deprivation (OGD) and lipopolysaccharide (LPS)-stimulated microglia by increasing miR-7 expression and inhibited microglia-induced neuronal injury. This study provides new insights into the role of okanin in ischemic stroke and shows that the miR-7/NLRP3 axis plays an important role in mediating the beneficial effects of okanin on cerebral ischemia. 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This study provides new insights into the role of okanin in ischemic stroke and shows that the miR-7/NLRP3 axis plays an important role in mediating the beneficial effects of okanin on cerebral ischemia. These findings suggest that okanin has great potential as a functional food for stroke recovery.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>36511396</pmid><doi>10.1039/d2fo01476a</doi><tpages>19</tpages><orcidid>https://orcid.org/0000-0003-4143-8597</orcidid><orcidid>https://orcid.org/0000-0002-5028-0691</orcidid></addata></record>
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source Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list)
subjects Animals
Beverages
Carotid arteries
Carotid artery
Carotid Artery, Common - metabolism
Cerebral blood flow
Cognitive ability
Cognitive Dysfunction - drug therapy
Cognitive Dysfunction - metabolism
Coreopsis
Coreopsis tinctoria
Deprivation
Food
Functional foods & nutraceuticals
Glucose
Impairment
Inflammasomes
Inflammasomes - metabolism
Inflammation
Inflammatory response
Ischemia
Ischemic Stroke
Lipopolysaccharides
Mice
Microglia
MicroRNAs - genetics
MicroRNAs - metabolism
NLR Family, Pyrin Domain-Containing 3 Protein - genetics
NLR Family, Pyrin Domain-Containing 3 Protein - metabolism
Occlusion
Oxygen
Pyrin protein
Recovery of function
Stroke
Stroke - drug therapy
Stroke - metabolism
title Okanin from Coreopsis tinctoria Nutt. alleviates cognitive impairment in bilateral common carotid artery occlusion mice by regulating the miR-7/NLRP3 axis in microglia
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