Impaired Spatial Memory after Ketamine Administration in Chronic Low Doses
Author Information
Author(s): Venâncio C, Magalhães A, Antunes L, Summavielle T
Primary Institution: Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto
Hypothesis
Chronic administration of sub-anesthetic doses of ketamine disrupts memory functions in rats.
Conclusion
Chronic low doses of ketamine impair spatial memory and habituation in rats.
Supporting Evidence
- Rats treated with 5 mg/kg of ketamine showed a decreased discrimination index in memory tasks.
- The lower dose of ketamine led to impaired habituation in the open field test.
- Control animals and those treated with a higher dose of ketamine were able to recognize object location changes.
Takeaway
Giving rats a low dose of ketamine for a long time made it hard for them to remember where things were and to get used to new places.
Methodology
Adult Wistar rats were given ketamine at doses of 5 and 10 mg/kg twice daily for 14 days, followed by memory tests.
Limitations
The study was conducted on a specific strain of rats, which may limit generalizability.
Participant Demographics
Male Wistar rats aged 80 to 90 days.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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