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- W3136133139 abstract ": The α7 nicotinic acetylcholine receptor (α7nAChR) has been studied for many years since its discovery. Although many functions and characteristics of brain α7nAChR are widely understood, much remains to be elucidated. The α7nAChR is widely expressed in the central nervous system, not only in neurons but also in astrocytes, microglia, and endothelial cells. α7nAChR can be activated by endogenous agonist like acetylcholine or exogenous agonists like nicotine and PNU282987. Its agonists can be divided into selective agonists and non-selective agonists. The activation of α7nAChR results in a series of physiological processes which have both short-term and long-term effects on cells, for example, calcium influx, neurotransmitter release, synaptic plasticity, and excitatory transmission. It also induces other downstream events, such as inflammation, autophagy, necrosis, transcription, and apoptosis. The cellular responses to α7nAChR activation vary according to cell types and conditions. For example, α7nAChR activation in pyramidal neurons leads to long-term potentiation, while α7nAChR activation in GABAergic interneurons leads to long-term depression. Studies have also shown some contradictory phenomena, which requires further study for clarification. Herein, the cellular responses of α7nAChR activation are summarized, and the functions of α7nAChR in neurons and non-neuronal cells are discussed. We also summarized contradictory conclusions to show where we stand and where to go for future studies." @default.
- W3136133139 created "2021-03-29" @default.
- W3136133139 creator A5007362010 @default.
- W3136133139 creator A5019390272 @default.
- W3136133139 creator A5075327235 @default.
- W3136133139 creator A5081117163 @default.
- W3136133139 creator A5081207814 @default.
- W3136133139 date "2021-03-01" @default.
- W3136133139 modified "2023-10-12" @default.
- W3136133139 title "Cellular responses and functions of α7 nicotinic acetylcholine receptor activation in the brain: a narrative review" @default.
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