The abstract is read at the publisher; the summary is JClub's.
In the Chat-cKO mouse model of TSHZ3-linked autism, muscarinic M1-mediated cholinergic transmission onto D1R- and D2R-expressing striatal projection neurons is reduced, and donepezil significantly alleviates repetitive behaviors.
- Why it matters: Cholinergic system alterations are implicated in ASD, but the striatal circuit adaptations that translate SCIN dysfunction into repetitive behaviors are not well defined.
- What they did: Using patch-clamp recordings plus behavioral, pharmacological, and molecular assays, the study tested D1R- vs. D2R-SPN excitability and M1 receptor function, then applied the acetylcholinesterase inhibitor donepezil acutely in mutant mice.
- The result: Reduced cholinergic transmission through the muscarinic M1 receptor onto SPNs occurs without changes in M1 receptor functionality or expression, alongside loss of differential excitability between D1R- and D2R-SPNs, and donepezil significantly alleviates repetitive behaviors.
The findingWhy it mattersWhat they didThe result
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