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Updated: Jun 4, 2026
11:27
The Use of Pharmacological-challenge fMRI in Pre-clinical Research: Application to the 5-HT System
Published on: April 25, 2012
5-HT(6) receptor and cognition.
Xabier Codony1, Jose Miguel Vela, Maria Javier Ramírez
1Laboratorios Dr Esteve SA, Barcelona, Spain.
Current Opinion in Pharmacology
|February 19, 2011
Summary
Serotonin 5-HT(6) receptor antagonists and agonists show promise for treating cognitive dysfunction. Research explores these compounds
Area of Science:
- Neuroscience
- Pharmacology
Background:
- The serotonin 5-HT(6) receptor is a target for cognitive dysfunction.
- Selective antagonists have been developed since 1993.
- Recent studies also highlight agonists' potential.
Purpose of the Study:
- To review preclinical and clinical evidence for 5-HT(6) receptor compounds in cognition.
- To explore the biochemical and neurochemical mechanisms of action.
Main Methods:
- Review of preclinical studies in animal models.
- Review of clinical trial data, including Phase II for SB-742457.
- Analysis of proposed molecular mechanisms.
Main Results:
- Both 5-HT(6) receptor antagonists and agonists improve learning and memory in animal models.
- One antagonist, SB-742457, has advanced to Phase II trials for Alzheimer's disease.
- Evidence suggests specific biochemical pathways are involved.
Conclusions:
- 5-HT(6) receptor modulation represents a promising therapeutic strategy for cognitive disorders.
- Further research into agonists and antagonists is warranted.
- Understanding the mechanisms can optimize treatment development.
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