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題名 N, N-dimethylglycine Protects Behavioral Disturbances and Synaptic Deficits Induced by Repeated Ketamine Exposure in Mice
作者 詹銘煥
Chan, Ming-Huan
Hsieh, Chung-Pin;Chen, Shao-Tsu;Lee, Mei-Yi;Huang, Chieh-Min;Chen, Hwei-Hsien
貢獻者 神科所
關鍵詞 head twitch; ketamine; long-term potentiation; recognition; social interaction
日期 2021-09
上傳時間 6-Feb-2023 14:12:01 (UTC+8)
摘要 Ketamine, an N-methyl-d-aspartate receptor (NMDAR) blocker, is gaining ground as a treatment option for depression. The occurrence of persistent psychosis and cognitive impairment after repeated use of ketamine remains a concern. N, N-dimethylglycine (DMG) is a nutrient supplement and acts as an NMDAR glycine site partial agonist. The objective of this study was to assess whether DMG could potentially prevent the behavioral and synaptic deficits in mice after repeated ketamine exposure. Male ICR mice received ketamine (20 mg/kg) from postnatal day (PN) 33-46, twice daily, for 14 days. The locomotor activity, novel location recognition test (NLRT), novel object recognition test (NORT), social interaction test, head twitch response induced by serotonergic hallucinogen, and the basal synaptic transmission and long-term potentiation (LTP) in the hippocampal slices were monitored after repeated ketamine treatment. Furthermore, the protective effects of repeated combined administration of DMG (30 and 100 mg/kg) with ketamine on behavioral abnormalities and synaptic dysfunction were assessed. The results showed that mice exhibited memory impairments, social withdrawal, increased head twitch response, reduced excitatory synaptic transmission, and lower LTP after repeated ketamine exposure. The ketamine-induced behavioral and synaptic deficits were prevented by co-treatment with DMG. In conclusion, these findings may pave a new path forward to developing a combination formula with ketamine and DMG for the treatment of depression and other mood disorders.
關聯 Neuroscience, Vol.472, pp.128-137
資料類型 article
DOI https://doi.org/10.1016/j.neuroscience.2021.08.004
dc.contributor 神科所
dc.creator (作者) 詹銘煥
dc.creator (作者) Chan, Ming-Huan
dc.creator (作者) Hsieh, Chung-Pin;Chen, Shao-Tsu;Lee, Mei-Yi;Huang, Chieh-Min;Chen, Hwei-Hsien
dc.date (日期) 2021-09
dc.date.accessioned 6-Feb-2023 14:12:01 (UTC+8)-
dc.date.available 6-Feb-2023 14:12:01 (UTC+8)-
dc.date.issued (上傳時間) 6-Feb-2023 14:12:01 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/143276-
dc.description.abstract (摘要) Ketamine, an N-methyl-d-aspartate receptor (NMDAR) blocker, is gaining ground as a treatment option for depression. The occurrence of persistent psychosis and cognitive impairment after repeated use of ketamine remains a concern. N, N-dimethylglycine (DMG) is a nutrient supplement and acts as an NMDAR glycine site partial agonist. The objective of this study was to assess whether DMG could potentially prevent the behavioral and synaptic deficits in mice after repeated ketamine exposure. Male ICR mice received ketamine (20 mg/kg) from postnatal day (PN) 33-46, twice daily, for 14 days. The locomotor activity, novel location recognition test (NLRT), novel object recognition test (NORT), social interaction test, head twitch response induced by serotonergic hallucinogen, and the basal synaptic transmission and long-term potentiation (LTP) in the hippocampal slices were monitored after repeated ketamine treatment. Furthermore, the protective effects of repeated combined administration of DMG (30 and 100 mg/kg) with ketamine on behavioral abnormalities and synaptic dysfunction were assessed. The results showed that mice exhibited memory impairments, social withdrawal, increased head twitch response, reduced excitatory synaptic transmission, and lower LTP after repeated ketamine exposure. The ketamine-induced behavioral and synaptic deficits were prevented by co-treatment with DMG. In conclusion, these findings may pave a new path forward to developing a combination formula with ketamine and DMG for the treatment of depression and other mood disorders.
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dc.format.mimetype text/html-
dc.relation (關聯) Neuroscience, Vol.472, pp.128-137
dc.subject (關鍵詞) head twitch; ketamine; long-term potentiation; recognition; social interaction
dc.title (題名) N, N-dimethylglycine Protects Behavioral Disturbances and Synaptic Deficits Induced by Repeated Ketamine Exposure in Mice
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1016/j.neuroscience.2021.08.004
dc.doi.uri (DOI) https://doi.org/10.1016/j.neuroscience.2021.08.004