Navigation Links
Study finds link between commonly prescribed statin and memory impairment
Date:9/25/2013

New research that looked at whether two commonly prescribed statin medicines, used to lower low-density lipoprotein (LDL) or 'bad cholesterol' levels in the blood, can adversely affect cognitive function has found that one of the drugs tested caused memory impairment in rats.

Between six and seven million people in the UK1 take statins daily and the findings follow anecdotal evidence of people reporting that they feel that their newly prescribed statin is affecting their memory. Last year, the US Food and Drug Administration (FDA) insisted that all manufacturers list in their side effects that statins might affect cognitive function.

The study, led by scientists at the University of Bristol and published in the journal PLOS ONE, tested pravastatin and atorvostatin (two commonly prescribed statins) in rat learning and memory models. The findings show that while no adverse cognitive effects were observed in rat performance for simple learning and memory tasks for atorvostatin, pravastatin impaired their performance.

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.

The results suggest that chronic treatment with pravastatin impairs working and recognition memory in rodents. The reversibility of the effects on stopping treatment is similar to what has been observed in patients, but the lack of effect of atorvostatin suggests that some types of statin may be more likely to cause cognitive impairment than others.

Neil Marrion, Professor of Neuroscience at Bristol's School of Physiology and Pharmacology and the study's lead author, said: "This finding is novel and likely reflects both the anecdotal reports and FDA advice. What is most interesting is that it is not a feature of all statins. However, in order to better understand the relationship between statin treatment and cognitive function, further studies are needed."


'/>"/>

Contact: Caroline Clancy
caroline.clancy@bristol.ac.uk
44-011-792-88086
University of Bristol
Source:Eurekalert

Related medicine news :

1. Professors at Purchase College and Columbia University Receive More Than $500,000 in Grants to Study New Ways to Reduce Anxiety Disorders
2. Penn Medicine study: Proton therapy cuts side effects for pediatric head and neck cancer patients
3. Study: Majority of patients who qualify for lifesaving heart treatment do not receive it
4. Mayo-led study: Drug fails to reduce diarrhea in patients receiving radiation therapy
5. Loyola study assesses use of fingerstick blood sample with i-STAT point-of-care device
6. Brain may rely on computer-like mechanism to make sense of novel situations, says CU-Boulder study
7. CDC, MGH study reveals that preventing malaria in travelers to West Africa reduces health costs
8. Perfume Industry Review of Natural & Synthetic Perfumes for Global & China Markets in a New Research Study Available at DeepResearchReports.com
9. Stronger sexual impulses may explain why men cheat more than women, study reveals
10. Moffitt Cancer Center launches prostate cancer study focused on black men
11. School of Public Health Receives $390,000 Grant to Study Alcohol Use Among Youth Acquiring HIV
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/21/2017)... PA (PRWEB) , ... April 21, 2017 , ... ... firm in Allegheny County that offers services to communities throughout the greater Pittsburgh ... in a charity drive to provide adaptive bicycles for differently-abled children. , Variety ...
(Date:4/21/2017)... ... ... The Patient Advocacy Community of The Beryl Institute presented Eve DeVaro, Director, ... Advocacy Award in recognition of her extraordinary contributions to the field of patient ... Beryl Institute’s annual Patient Experience Conference on March 20 in Denver, Colorado. ...
(Date:4/21/2017)... ... 21, 2017 , ... Crossover Symmetry , an evidence ... active lifestyle company that provides Human Performance Training and education to tactical athletes. ... responders, military officers and others in service through the development and conditioning of ...
(Date:4/21/2017)... ... 2017 , ... Airway Management, the medical device manufacturer of ... and well renowned Asian distributor, Discovery Sleep. The agreement involves the ... and will stabilize and strengthen Airway’s presence with a dedicated, reputable medical device ...
(Date:4/21/2017)... ... April 21, 2017 , ... ... candidates to serve on its Accreditation and Standards Committees to support the ... is improving image quality and reducing patient radiation dose,” reports Eliot Siegel, ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... , April 19, 2017  New research provides evidence that ... Parkinson,s, according to a study released today that will be ... Meeting in Boston , April 22 ... the treatment of Parkinson,s disease, the oral drug levodopa has ... and longevity. But as the disease progresses, the effects of ...
(Date:4/18/2017)... Ohio , April 18, 2017  Cardinal Health ... Non-GAAP 1 fiscal 2017 earnings per share (EPS) ... and 2019.  This is in conjunction with this morning,s ... Deep Vein Thrombosis and Nutritional Insufficiency businesses. ... from continuing operations will be at the bottom of ...
(Date:4/18/2017)... 2017 Research and Markets has announced the ... to their offering. ... arthroscopy devices market to grow at a CAGR of 6.35% during ... Market 2017-2021, has been prepared based on an in-depth market analysis ... and its growth prospects over the coming years. The report also ...
Breaking Medicine Technology: