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Study finds link between commonly prescribed statin and memory impairment
Medical Express ^ | 09-25-2013 | Provided by University of Bristol

Posted on 09/25/2013 1:35:24 PM PDT by Red Badger

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 UK 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 in the Faculty of Medical and Veterinary Sciences 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."


TOPICS: Business/Economy; Culture/Society; United Kingdom
KEYWORDS: atorvostatin; cholesterol; drug; pravastatin
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I take pravastatin, but i can't remember why..............
1 posted on 09/25/2013 1:35:24 PM PDT by Red Badger
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To: Red Badger
I take pravastatin, but i can't remember why...

I take Lipitor for the same unknown reason.

2 posted on 09/25/2013 1:38:25 PM PDT by Don Corleone ("Oil the gun..eat the cannoli. Take it to the Mattress.")
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To: neverdem

ping


3 posted on 09/25/2013 1:39:01 PM PDT by LurkedLongEnough
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To: Don Corleone
I take pravastatin, but i can't remember why... I take Lipitor for the same unknown reason.

You take it to improve your comedy writing.

4 posted on 09/25/2013 1:42:15 PM PDT by Dysart (If you like your country, you can keep it.)
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To: Dysart

I took some kind of statin...forgot which one, but I do remember it made my legs hurt something awful! So, I quit taking it. I think.


5 posted on 09/25/2013 1:45:29 PM PDT by saleman
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To: Red Badger

I’m on Niacin to try to lower/eliminate the Zocor.


6 posted on 09/25/2013 1:45:59 PM PDT by AppyPappy (Obama: What did I not know and when did I not know it?)
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To: Red Badger

Hillary is a rat that must have taken a lot of this.

“I can’t remember, my minds in a blender...it’s jello,jello,jello.”


7 posted on 09/25/2013 1:52:42 PM PDT by TurboZamboni (Marx smelled bad & lived with his parents most his life.)
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To: TurboZamboni
Hillary is a rat that must have taken a lot of this.

"What difference does it make?"

8 posted on 09/25/2013 2:03:09 PM PDT by Pearls Before Swine
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To: Red Badger

All those poor people...

Oh 'statin'. Never-mind.

9 posted on 09/25/2013 2:05:33 PM PDT by DoughtyOne (This post coming to you today from behind the Camelskin Curtain. Not the Iron or Bamboo Curtain...)
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To: Red Badger

I keep forgetting to take mine. Then after a few days, I remember to.


10 posted on 09/25/2013 2:05:33 PM PDT by LearsFool ("Thou shouldst not have been old, till thou hadst been wise.")
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To: Red Badger

I don’t think that this is the first study to make this determination, but what do you do if your Doctor prescribes it anyway?


11 posted on 09/25/2013 2:08:09 PM PDT by The Sons of Liberty (Muzzie killing muzzie what's the downside and who am I to stop them ?)
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To: Don Corleone
I stopped taking Lipitor and my blood sugar dropped to a normal level, 97. AMA Journal of Medicine article said that 73% of those on statins developed Type II Diabetes. Many causes but that is a big number.
12 posted on 09/25/2013 2:09:53 PM PDT by BatGuano (You don't think I'd go into combat with loose change in my pocket, do ya?)
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To: Red Badger

I’d comment but I don’t remember a single thing I read.


13 posted on 09/25/2013 2:14:51 PM PDT by CivilWarBrewing
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To: The Sons of Liberty
I don’t think that this is the first study to make this determination, but what do you do if your Doctor prescribes it anyway?

You'll fuhgeddaboudit anyway............

14 posted on 09/25/2013 2:20:22 PM PDT by Red Badger (It is dangerous to be right in matters where established men are wrong. .....Voltaire)
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To: AppyPappy

What mg of Niacin are you using & you monitoring by blood work? Any significant changes?


15 posted on 09/25/2013 2:23:13 PM PDT by SIRTRIS
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To: BatGuano

How high was your blood sugar while on Lipitor? I am on simvastatin and mine hovers around 105.


16 posted on 09/25/2013 2:25:03 PM PDT by steve86 (Some things aren't really true but you wouldn't be half surprised if they were.)
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To: BatGuano
"73% of those on statins developed Type II Diabetes"

I'm going to have to look for that article.

I did find this:

The researchers analyzed data on 471,250 participants who had no history of diabetes and who were newly using statins - 54% were women.The total risk of developing diabetes was low, but this risk rose among some subjects taking statins. Between 162 and 407 patients would have to be treated with different statins for one extra patient to develop diabetes.

1/162 or 1/407 does not sound like 70%.

17 posted on 09/25/2013 2:31:48 PM PDT by steve86 (Some things aren't really true but you wouldn't be half surprised if they were.)
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To: Red Badger

bkmk


18 posted on 09/25/2013 2:33:19 PM PDT by Sergio (An object at rest cannot be stopped! - The Evil Midnight Bomber What Bombs at Midnight)
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To: Red Badger

Statin Brain

Consider loading up on Co-Q-10
about 200mg twice a day will do it

Fixes the Muscle pain, blurry vision, and the stupids
Or... Just don’t take the Statins at all.

http://www.webmd.com/vitamins-supplements/ingredientmono-938-COENZYME%20Q-10.aspx?activeIngredientId=938&activeIngredientName=COENZYME%20Q-10


19 posted on 09/25/2013 2:41:50 PM PDT by HangnJudge
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To: The Sons of Liberty

I told my Dr. I don’t like what I’ve read about any Statin drugs, and she can pound sand if she expects me to take anything stronger than red yeast rice, or whatever that stuff is. I can’t remember exactly.

She doesn’t like me much.


20 posted on 09/25/2013 2:55:38 PM PDT by Cyber Liberty (It's hard to accept the truth when the lies were exactly what you wanted to hear.)
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