Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems
Baicalein 5,6-dimethyl ether, a bioactive flavonoid isolated for the first time from <i>Alnus rugosa</i>, was explored for its capability to relieve memory deficits and decrease oxidative stress. We examined the neuropharmacological effects of baicalein 5,6-dimethyl ether on scopolamine...
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MDPI AG
2021-06-01
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| author | Ion Brinza Iriny M. Ayoub Omayma A. Eldahshan Lucian Hritcu |
| author_facet | Ion Brinza Iriny M. Ayoub Omayma A. Eldahshan Lucian Hritcu |
| author_sort | Ion Brinza |
| collection | DOAJ |
| description | Baicalein 5,6-dimethyl ether, a bioactive flavonoid isolated for the first time from <i>Alnus rugosa</i>, was explored for its capability to relieve memory deficits and decrease oxidative stress. We examined the neuropharmacological effects of baicalein 5,6-dimethyl ether on scopolamine (Sco)-induced zebrafish (<i>Danio rerio</i>) anxiety, amnesia, and brain oxidative stress and attempted to elucidate the underlying mechanisms. Anxiety-like behavior, exploratory behavior, and memory performance were measured using novel tank-diving test (NTT), Y-maze, and novel object recognition (NOR) tests. For 10 days, baicalein 5,6-dimethyl ether (1, 3, and 5 µg/L) was administered through immersion, whereas Sco (100 μM) was delivered 30 min before behavioral tests. Treatment with baicalein 5,6-dimethyl ether reduced anxiety and memory impairment, and increased exploratory behavior in specific tests, along with significant protection from neuronal oxidative stress in the brain tissue of Sco-treated zebrafish. Antioxidant and anti-acetylcholinesterase (AChE) activities of baicalein 5,6-dimethyl ether in the Sco-induced zebrafish were further confirmed using in vivo assays. In Sco-treated zebrafish, baicalein 5,6-dimethyl ether regulated cholinergic function by inhibiting AChE activity. Baicalein 5,6-dimethyl ether may be a promising candidate compound for treating anxiety and amnesia by restoring cholinergic activity and reducing brain oxidative stress, according to our findings. |
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| last_indexed | 2024-03-10T10:16:34Z |
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| spelling | doaj.art-6ae5ffce7fb549a9bdfbec946a3b66482023-11-22T00:45:47ZengMDPI AGPlants2223-77472021-06-01106124510.3390/plants10061245Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant SystemsIon Brinza0Iriny M. Ayoub1Omayma A. Eldahshan2Lucian Hritcu3Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, 700506 Iasi, RomaniaDepartment of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, EgyptDepartment of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, EgyptDepartment of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, 700506 Iasi, RomaniaBaicalein 5,6-dimethyl ether, a bioactive flavonoid isolated for the first time from <i>Alnus rugosa</i>, was explored for its capability to relieve memory deficits and decrease oxidative stress. We examined the neuropharmacological effects of baicalein 5,6-dimethyl ether on scopolamine (Sco)-induced zebrafish (<i>Danio rerio</i>) anxiety, amnesia, and brain oxidative stress and attempted to elucidate the underlying mechanisms. Anxiety-like behavior, exploratory behavior, and memory performance were measured using novel tank-diving test (NTT), Y-maze, and novel object recognition (NOR) tests. For 10 days, baicalein 5,6-dimethyl ether (1, 3, and 5 µg/L) was administered through immersion, whereas Sco (100 μM) was delivered 30 min before behavioral tests. Treatment with baicalein 5,6-dimethyl ether reduced anxiety and memory impairment, and increased exploratory behavior in specific tests, along with significant protection from neuronal oxidative stress in the brain tissue of Sco-treated zebrafish. Antioxidant and anti-acetylcholinesterase (AChE) activities of baicalein 5,6-dimethyl ether in the Sco-induced zebrafish were further confirmed using in vivo assays. In Sco-treated zebrafish, baicalein 5,6-dimethyl ether regulated cholinergic function by inhibiting AChE activity. Baicalein 5,6-dimethyl ether may be a promising candidate compound for treating anxiety and amnesia by restoring cholinergic activity and reducing brain oxidative stress, according to our findings.https://www.mdpi.com/2223-7747/10/6/1245<i>Alnus rugosa</i>baicalein 5,6-dimethyl ethermemoryanxietyoxidative stressscopolamine |
| spellingShingle | Ion Brinza Iriny M. Ayoub Omayma A. Eldahshan Lucian Hritcu Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems Plants <i>Alnus rugosa</i> baicalein 5,6-dimethyl ether memory anxiety oxidative stress scopolamine |
| title | Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems |
| title_full | Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems |
| title_fullStr | Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems |
| title_full_unstemmed | Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems |
| title_short | Baicalein 5,6-Dimethyl Ether Prevents Memory Deficits in the Scopolamine Zebrafish Model by Regulating Cholinergic and Antioxidant Systems |
| title_sort | baicalein 5 6 dimethyl ether prevents memory deficits in the scopolamine zebrafish model by regulating cholinergic and antioxidant systems |
| topic | <i>Alnus rugosa</i> baicalein 5,6-dimethyl ether memory anxiety oxidative stress scopolamine |
| url | https://www.mdpi.com/2223-7747/10/6/1245 |
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