Author Interviews, Cognitive Issues, PLoS / 02.10.2013
Statins and Cognitive Function
Neil V. Marrion, PhD
Professor of Neuroscience
Programme Director for BSc and MSci Pharmacology degrees
School of Physiology & Pharmacology
Medical and Veterinary Sciences University Walk
University of Bristol Bristol, BS8 1TD.
MedicalResearch.com: What are the main findings of the study?
Dr. Marrion: We tested pravastatin and atorvostatin (two commonly prescribed statins) in rat learning and memory models. Rats were treated daily with pravastatin (brand name - Pravachol) or atorvostatin (brand name - Lipitor) for 18 days. The rodents were tested in a simple learning task before, during and after treatment, where they had to learn where to find a food reward. On the last day of treatment and following one week withdrawal, the rats were also tested in a task which measures their ability to recognise a previously encountered object (recognition memory).
The study’s findings showed that pravastatin tended to impair learning over the last few days of treatment although this effect was fully reversed once treatment ceased. However, in the novel object discrimination task, pravastatin impaired object recognition memory. While no effects were observed for atorvostatin in either task.




















