Medical Forum / General / Cardiology / June 2005
Study: Extra folic acid may protect brain
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Bill - 23 Jun 2005 09:54 GMT Study: Extra folic acid may protect brain
WASHINGTON (AP) -- High-dose folic acid pills -- providing as much of the nutrient as 2.5 pounds of strawberries -- might help slow the cognitive decline of aging.
So says a Dutch study that's the first to show a vitamin could really improve memory.
The research, unveiled Monday at a meeting of Alzheimer's researchers, adds to mounting evidence that a diet higher in folate is important for a variety of health effects. It's already proven to reduce birth defects, and research suggests it helps ward off heart disease and strokes, too.
The new study doesn't show folic acid could prevent Alzheimer's _ the people who tested the vitamin didn't have symptoms of that disease.
But as people age, some decline in memory and other brain functions is inevitable. Taking 800 micrograms of folic acid a day slowed that brain drain, reported lead researcher Jane Durga of Wageningen University in the Netherlands.
In the study, 818 cognitively healthy people ages 50 to 75 swallowed either folic acid or a dummy pill for three years.
On memory tests, the supplement users had scores comparable to people 5.5 years younger, Durga said. On tests of cognitive speed, the folic acid helped users perform as well as people 1.9 years younger.
That's significant brain protection, with a supplement that's already well-known to be safe, said Johns Hopkins University neuroscientist Marilyn Albert, who chairs the Alzheimer's Association's science advisory council.
"I think I would take folic acid, assuming my doctor said it was OK," Albert said. "We know Alzheimer's disease, the pathology, begins many, many years before the symptoms. We ought to be thinking about the health of our brain the same way we think about the health of our heart."
Indeed, there's enough research now suggesting that there are ways to gird the brain against age-related memory loss and Alzheimer's that the association has begun offering classes to teach people the techniques.
Topping the list:
a.. Exercise your brain. Using it in unusual ways increases blood flow and helps the brain wire new connections. That's important to build up what's called cognitive reserve, an ability to adapt to or withstand the damage of Alzheimer's a little longer. In youth, that means good education. Later in life, do puzzles, learn to play chess, take classes.
b.. Stay socially stimulated. Declining social interaction with age predicts declining cognitive function.
c.. Exercise your body. Bad memory is linked to heart disease and diabetes because clogged arteries slow blood flow in the brain. Experts recommend going for the triple-whammy of something mentally, physically and socially stimulating all at once: Coach your child's ball team. Take a dance class. Strategize a round of golf.
Diet's also important. While Alzheimer's researchers have long recommended a heart-healthy diet as good for the brain, Monday's folic acid study is the first to test the advice directly.
Previous studies have shown that people with low folate levels in their blood are more at risk for both heart disease and diminished cognitive function.
Durga said it's not clear how folic acid might work to protect the brain. Some studies suggest folate lowers inflammation; others suggest it may play a role in expression of dementia-related genes.
Folate is found in such foods as oranges and strawberries, dark-green leafy vegetables and beans. In the United States, it also is added to cereal and flour products. The recommended daily dose here is 400 micrograms; doctors advise women of childbearing age to take a supplement to ensure they get that much.
Rita - 23 Jun 2005 13:46 GMT > Study: Extra folic acid may protect brain > [quoted text clipped - 4 lines] > So says a Dutch study that's the first to show a vitamin could really >improve memory. I wonder if the study addresed short term memory loss, the phenomenum those of us who experience it call "senior moments"?
I don't believe my reasoning powers have begun to fail, nor my ability to read and absorb fairly challenging material.
But I do momentarily forget names of people and books and other facts I know well. In a converation I find myself stumbling to recall a name -- sometimes I have to menally recite the alphabet to see if coming across the letter with which the name begins will "job" my memory. I am age 75 and this has been going on for a few years now. Usually, even if I do nothing to stimulate memory, the name pops up in my mind a bit later. This happens to me far more often when talking to someone than when writing. Although I do make use of Google to give me clues sometimes as to the name or term I want to recall:)
My daughter once worked in a nursing home and tells me, when I once got dressed to go off to church on a Saturday, that she will put up a big board that says "Today is Tuesday. The President is George Bush. You live in New York City."
zee - 23 Jun 2005 17:51 GMT > > Study: Extra folic acid may protect brain > > [quoted text clipped - 26 lines] > a big board that says "Today is Tuesday. The President is George > Bush. You live in New York City." People who experienced statin induced memory loss describe such incidents, and say they put up with it for a long time thinking, and being told, it was due to aging, or Alzheimer's, or 'going crazy'. It was only when they stopped the drug and began to recover that they and their families realized incidents such as you describe are not normal.
It is this, not some boogeyman mental illness, that we mean when we speak of statin induced cognitive adverse effects.
Statin induced cognitive adverse effects including memory loss, confusion, disorientation, forgetting how to do things one has always done, such as drive a car, aphasia and more are described here:
http://www.spacedoc.com
Zee
zee - 23 Jun 2005 18:05 GMT Dr. Duane Graveline's descripiton of his cognitive adverse effects experienced from Lipitor.
http://www.spacedoc.net
"Statin drugs don't do that" was a refrain the author heard hundreds of times from physicians and pharmacists as, four years ago, he began to investigate his own mysterious reaction to Lipitor. As a former astronaut, aerospace medical research scientist, flight surgeon and family doctor, he was appalled by the lack of information in his own medical community on the true side effects of the statin drugs."
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> >Study: Extra folic acid may protect brain > >WASHINGTON (AP) -- High-dose folic acid pills -- providing as much the nutrient as 2.5 pounds of strawberries -- might help slow the cognitive decline of aging. So says a Dutch study that's the first to show a vitamin could really improve memory.
> > I wonder if the study addresed short term memory loss,
> > I don't believe my reasoning powers have begun to fail, nor my > > ability to read and absorb fairly challenging material. [quoted text clipped - 31 lines] > > Zee Rita - 23 Jun 2005 18:34 GMT >Dr. Duane Graveline's descripiton of his cognitive adverse effects >experienced from Lipitor. [quoted text clipped - 7 lines] >family doctor, he was appalled by the lack of information in his own >medical community on the true side effects of the statin drugs." In my own case, and in the experiences of many seniors I've discussed this with, the transient memory loss we call "senior moments" had nothing at all to do with taking statins since none of us were. I've noticed it for a few years now and only began taking a statin last fall.
My interest was in knowing if folic acid could help those who experience these "senior moments".
zee - 23 Jun 2005 19:27 GMT > >Dr. Duane Graveline's descripiton of his cognitive adverse effects > >experienced from Lipitor. [quoted text clipped - 16 lines] > My interest was in knowing if folic acid could help those > who experience these "senior moments". Statin induced memory loss is very like normal memory loss; that is exactly why it is often overlooked by the person experiencing it, health care practitioners and others. There isn't some new variety of memory loss which only happens with statins.
I don't think it's wise to supplement with folate without talking it over with one's physician. Folate supplementation may not be innocent; it can mask a B12 deficiency, and there is no one-size fits all for how much or what to take to circumvent that.
Below, a discussion with David Rind on the issue of Folate supplementation:
"Zee wrote:
> Is folate supplementation, ie) to lower homocysteine levels, dangerous > for women? And if it is, will it be for men too? Breast cancer is not > only a disease of women. Hard to know from this study, but the results are at least mildly concerning. Others have worried that folate can promote cell turnover and so could increase the risk of tumors. I would guess we'll see a series of other articles looking at long term outcomes after trials of folate to see if there's evidence of increased cancer risk. These current data are very preliminary.
-- David Rind d...@caregroup.harvard.edu" ~~~~~~~~~~~~~
In the absence of definitive evidence (like a large randomized trial of folate supplementation for primary prevention of heart disease) we're all left with making our best guesses about what does or does not make sense to do. Personally, if my only risk factor for coronary heart disease were an elevated homocysteine level, I would not take high dose folate supplementation.
And, in general, if I thought my risk for coronary heart disease were too high because of some series of risk factors, I would take a statin whatever those risk factors actually were. That's because my interpretation of the various evidence is that just about everyone can expect around a 25 percent reduction in their risk of coronary disease by taking a statin. This relative reduction translates into a pretty small absolute decrease in people at low risk and a pretty large absolute decrease in people at high risk, but it's there for just about every group of people that has been studied. (People on dialysis are probably an exception to this.)
I suppose it could turn out that statins increase the risk of cancer, but there's certainly no strong evidence in that direction currently. In fact, there's some weak evidence to suggest that they decrease the risk of various cancers. In any case, in the large trials of statins overall mortality has been pretty consistently reduced. So if statins have bad side effects, they do not seem to be large enough to overwhelm the favorable effects of statins on mortality, at least in people at increased risk for coronary heart disease.
-- David Rind d...@caregroup.harvard.edu
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Juhana Harju wrote:
>High dose supplementation is probably not wise, but wouldn't 400 µg be a > sensible dose? > Below is an article about some positive effects of fortification with folic acid > (not any dosages mentioned). > http://www.sciencedaily.com/releases/2004/03/040308074315.htm Maybe. But even if the analysis in the above study is correct, it's possible that you could be decreasing the risk of strokes but increasing the risks of cancer. This is not to say that I think a daily supplement with 400 mcg of folate is a bad idea -- just that we really don't have strong evidence on the issue the original poster raised as to whether folate supplementation could have harmful effects.
 Signature David Rind d...@caregroup.harvard.edu
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Rita - 23 Jun 2005 18:31 GMT >> > Study: Extra folic acid may protect brain >> > [quoted text clipped - 43 lines] > >Zee I realize this sort of thing has been reported to affect people on statins, however, the "senior moment" thing is common among those in my age group who never have taken a statin and quite precedes statin use in my own case.
We in a senior newsgroup frequently discuss it.
My question was, is this the kind of memory loss that folic acid can aid in overcoming to some extent.
listener - 23 Jun 2005 19:05 GMT >>> > Study: Extra folic acid may protect brain >>> > [quoted text clipped - 56 lines] > My question was, is this the kind of memory loss that folic acid > can aid in overcoming to some extent. You HAVE to be taking a statin! Are you sure? Maybe you really do take a statin, but the statin has made you forget that you take it... :-) You mean you really could be "normal"? You mean there just might be another reason for memory loss NOT related to statins? [tongue out of cheek].
I would think that "cognitive decline of aging" contributes to those senior moments. Although folic *has* been shown to lower homocysteine levels, I think there needs to be more study on it's anti-cognitive decline effect. With that said, I don't think there would be any harm in adding it to your daily supplements along with some b6 & b12.
L.
Rita - 23 Jun 2005 21:22 GMT >>>> > Study: Extra folic acid may protect brain >>>> > [quoted text clipped - 67 lines] >decline effect. With that said, I don't think there would be any harm in >adding it to your daily supplements along with some b6 & b12. I added a B complex that contains the above.
zee - 23 Jun 2005 20:14 GMT > >> > Study: Extra folic acid may protect brain > >> > [quoted text clipped - 54 lines] > My question was, is this the kind of memory loss that folic acid > can aid in overcoming to some extent. Again, my response is; taking folate may not be innocent and I wouldn't do it without discussion with a physician.
There are pros and cons to the folate supplementation argument. Possible increase in some cancers is a con. Help in recovery from statin induced peripheral neuropathy and myopathy may be a pro.
Because you have said you have had muscle pains and aches since statin use, you should be tested for peripheral neuropathy and/or mitochondrial myopathy.
Vitamin B supplementation is used to treat peripheral neuropathy and may also be helpful for statin induced myopathy.
Folate and cancer:
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstra ct&list_uids=15531657&query_hl=4 "The potential cancer-promoting effect of folic acid supplementation needs to be considered in carefully monitoring the long-term effect of folic acid fortification on the vast majority of the US population, who are not at risk of NTDs."
Robert - 23 Jun 2005 20:03 GMT > > Study: Extra folic acid may protect brain > > [quoted text clipped - 7 lines] > I wonder if the study addresed short term memory loss, the > phenomenum those of us who experience it call "senior moments"? I take lecithin and alpha-lipoic acid and folate and B12 daily.
Bill - 23 Jun 2005 21:34 GMT >> Study: Extra folic acid may protect brain >> [quoted text clipped - 7 lines] > I wonder if the study addresed short term memory loss, the > phenomenum those of us who experience it call "senior moments"? They talk about cognitive speed, so maybe. I think long term memory would be harder to test. I'll keep a look out for more on this.
> I don't believe my reasoning powers have begun to fail, nor my > ability to read and absorb fairly challenging material. For me, I think time of day may be a factor. :)
> But I do momentarily forget names of people and books and other > facts I know well. In a converation I find myself stumbling to [quoted text clipped - 6 lines] > Although I do make use of Google to give me clues sometimes as to > the name or term I want to recall:) I do exactly the same thing and I am 62. Except often is is a movie star and I look her (almost always a her!) up on the Internet Movie Data Base (IMDB) by looking up a movies she was in or remembering someone else in a movie she was in.
> My daughter once worked in a nursing home and tells me, when I once > got dressed to go off to church on a Saturday, that she will put up > a big board that says "Today is Tuesday. The President is George > Bush. You live in New York City." I do forget the day sometimes. But have various things that keep me in control on that.
Bill
Rita - 23 Jun 2005 22:06 GMT >>> Study: Extra folic acid may protect brain >>> [quoted text clipped - 25 lines] >> to me far more often when talking to someone than when writing. >> Although I do make use of Google to give me clues sometimes as to
>I do forget the day sometimes. But have various things that keep me in control >on that. > >Bill Yes, it is helpful to have the date on my computer:)
Other than forgetting names and other scraps of data temporarily, my biggest memory problem is forgetting what it was I was going to do next. A few minutes ago I walked into the kitchen to get something out of the freezer, and now I'm back at my computer and didn't do it. I could not remember why I had gone into the kitchen. It just came to me -- whole wheat bread for breadcrumbs to coat some fish. Let's hope I can make it through this time around:)
William Wagner - 23 Jun 2005 22:39 GMT > >>> Study: Extra folic acid may protect brain > >>> [quoted text clipped - 44 lines] > me -- whole wheat bread for breadcrumbs to coat some fish. Let's > hope I can make it through this time around:) You are not alone. I cut up 3X5 cards with things to do. Leaving notes about something I had to do after 7 hours for CABG four years ago. Before that I also went thru the alphabet for memory clues as it works. Long term is wonderful and I have not got lost yet ;))
Personal opine is that any drug can have an impact as well as traumatic experiences on our minds. One reason why I avoid horror movies and Stephen King Books. ;)) Photographic memory yes but short term like I once wrote is so important and now amiss. If I added sugar to my coffee in the am trivial but other questions arise like did I turn off the grill ?
Double check for safety is the rigor.
Bill 58 rotations about the planet I Think ;))
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Bill - 23 Jun 2005 23:13 GMT >> >>> Study: Extra folic acid may protect brain >> >>> [quoted text clipped - 61 lines] > > Bill 58 rotations about the planet I Think ;)) Sun!! :)
Bill
Rita - 23 Jun 2005 23:59 GMT > You are not alone. I cut up 3X5 cards with things to do. Leaving notes >about something I had to do after 7 hours for CABG four years ago. [quoted text clipped - 11 lines] > >Bill 58 rotations about the planet I Think ;)) Yes, I check for safety before leaving the house. To make sure the oven is not on, for one. Luckily we have an iron that shuts itself off within a short period of time. Before I made it an iron clad rule to check everything, I would find myself halfway down the block and need to return. Once I found water boiling on the stove and that did it.
Bill - 23 Jun 2005 23:04 GMT >>>> Study: Extra folic acid may protect brain >>>> [quoted text clipped - 44 lines] > me -- whole wheat bread for breadcrumbs to coat some fish. Let's > hope I can make it through this time around:) Yes, I do that kind of thing too. Most typical is doing something - like writing here - and saying I'm going to have to look up something on Google. Than a total blank 5 mins. later. Very often it comes back within a couple of hours or so, however.
Bill
zee - 24 Jun 2005 00:28 GMT > >>>> Study: Extra folic acid may protect brain > >>>> [quoted text clipped - 51 lines] > > Bill While small memory glitches can happen at any age, pervasive memory loss is not normal in one's 40s and 50s or even 60s and 70s.
Efforts to minimize the seriousness of statin induced cognitive adverse effect is typical of what those taking statins and injured by them did, until it was too late.
Do not attribute memory problems to aging or allow your physicians to do that. This is not only ageist but dangerous.
Memory loss is a symptom not a joke. And brain damage from statins may be irreversible.
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Doug Peterson has not recovered from his statin induce brain injury. He is much worse than depicted here, January 2004, and has been diagnosed with damage to his cerebellum.
LIFE AFTER LIPITOR: Is Pfizer product a quick fix or dangerous drug?
Residents experience adverse reactions
By Melissa Siig, Tahoe World Staff
At first glance, Tahoe City resident Doug Peterson looks like he is recovering from a stroke.
His speech is slurred, he has difficulty walking in a straight line, and he can't sign his own name. By afternoon, he is so fatigued he has to sit down for the rest of the day. When asked his age, Peterson says he is 52. His wife Karla, standing nearby, corrects him. He is 53.
Doug has never had a heart attack, and until the onset of the symptoms almost three years ago, was an active skier, biker and scuba diver. Now he is limited to walks on the treadmill. Doug traces his problems to a drug he started taking almost three years before his health began deteriorating - Lipitor. Two other Tahoe City locals have also experienced negative side effects from taking Lipitor or other statins, the name for a family of cholesterol-fighting pills.
While there is no concrete evidence linking Doug's health problems to Lipitor, after doing years of research, meeting with doctors and talking to other statin sufferers all over the world online, he and Karla are convinced of the connection. Pfizer, the maker of Lipitor, claims the drug is effective in lowering cholesterol and has minor side-effects. But as Doug and others would ask, is it worth it?
WONDER DRUG OR DANGEROUS PILL?
Doug, who has hereditary high cholesterol, was first prescribed Mevacor, a statin made by Merck, in 1998. Six months later, his doctor had him switch to Lipitor, which comes in higher doses, and upped his dosage from 10 to 20 mg. His cholesterol dropped from 285 to a low of 160.
"The doctor was very pleased," said Doug, "but meanwhile the symptoms started."
In the fall of 2000, Doug began having restless sleep patterns. His twitching and flying arms got so bad that Karla had to sleep in another room. One time, Doug even fell out of bed. The couple didn't think anything was seriously wrong until a few months later when Doug started slurring his words. This was followed by a loss of balance and the beginning of what Doug calls the "statin shuffle" - a slow, wobbly walk across a room. Next to slide was Doug's fine motor skills. It took him five minutes to write four words, much of which was illegible. Finally, he tired easily and his cognitive memory processing diminished. He had trouble following books with complex plots.
Confounded by Doug's illness, over the next two years the Petersons traveled all over California meeting with neurologists, internists and acupuncturists. Doug had MRIs, brain scans and neurofeedback tests done. Last February, Doug's doctor suggested he go off Lipitor to see if the drug was causing his health problems. After three weeks, the symptoms persisted, so the doctor put Doug back on the pill. Since Doug wasn't exhibiting the most common side effect, muscle cramps, and his liver function tests came back normal, the physician was doublly sure that Lipitor was not to blame.
Finally, last spring, a doctor in Pasadena suggested Lipitor could be the culprit. Doug went off the drug in May, and since then his symptoms have stopped their downward spiral and his health has slowly started to improve. According to Karla, his mind is sharper, his balance is better and his speech is more clear in the mornings, before he gets tired. But he still has a long way to go.
"Before, I was a good father and family person," said Doug, who has two children with Karla. "At this point, I can't do that much."
A former Navy diver and owner of Sierra Tahoe Computers, a repair and service business, Doug has had to cut down his work schedule because of his fatigue and loss of hand coordination. He is considering going on disability, but Karla remains optimistic.
"We are hoping he is going to get better. That's our number one goal," she said. "Anger is a waste of energy at this point. We are trying to recover and get the word out."
DID PFIZER DO ENOUGH STUDIES?
Since Parke-Davis (later acquired by Pfizer) developed Lipitor in 1997, it has become the number one prescribed cholesterol-lowering drug in the United States, with more than 18 million Americans having been prescribed the drug. New York City-based Pfizer, the world's largest pharmaceutical company, derives a quarter of its $32 billion in annual sales from Lipitor, according to an article in SmartMoney. With sales expected to top $10 billion this year, Lipitor is poised to become the largest-selling pharmaceutical in history, surpassing Pfizer's other wonder drug, Viagra.
Lipitor is proven to lower total cholesterol by 29 to 45 percent. As with any prescription, it comes with a list of possible side effects, such as muscle pain or weakness and liver dysfunction. Pfizer's Web site states, "The most commonly reported side effects are gas, constipation, stomach pain and indigestion. They are usually mild and tend to go away." In a nine-month study of 2,502 patients, Pfizer found that more serious side effects, such as facial paralysis, colon inflammation and gallbladder pain, occurred in less than 2 percent of those treated.
Pfizer was unable to commment on reported adverse side effects in time for the Tahoe World's deadline.
The problem, say the Petersons, is that Pfizer has not conducted any long-term studies. Doug's health issues didn't start for two and a half years after he started taking Lipitor. Similarly, Tahoe City psychologist John Altrocchi, 75, was on Mevacor for around three years when he started to develop calf pain that became so severe he could hardly walk. He also experienced a case of temporary memory loss called transient global amnesia (TGA), which has been linked with statins. A day after watching the 1998 Super Bowl game, Altrocchi had no memory of the event.
"There's no way you could prove that Mevacor was responsible for the TGA, but it's very possible," said Altrocchi, who stopped taking the drug about three years ago and convinced his brother, a retired neurologist, to go off Lipitor. "Especially for older men, I think it's wise to get off statins right away. There is very little evidence they do much good."
While most symptoms seem to start after a few years, Ed Ontiveros of Homewood began having physical problems within 30 days of taking Lipitor. After experiencing muscle aches and weakness for a few days, the 75-year old fell in the bathroom and didn't have the strength to get up. Since going off the drug, he's had no problems.
"It [reduced cholesterol] is not worth it with the side effects," said Ontiveros. "You may not live as long, but you sure don't want to die earlier."
Doctors are quick to prescribe Lipitor, says Karla, because they perceive it as a magic bullet in the battle against cardiovascular disease, the leading cause of death for Americans, and it's easier than prescribing a long-term regime of healthy diet and exercise. But the evidence that high cholesterol leads to heart disease is not conclusive, said Altrocchi, and there is even speculation that cholesterol provides protection for the brain and spine.
THE ROAD TO RECOVERY
The Petersons say Pfizer is too powerful to take on alone, but would consider joining a class-action lawsuit against the company. However, lawyers have told them a lawsuit is only possible if Lipitor gets recalled by the Food and Drug Administration. (Another statin, Baycol, was recalled by Bayor in 2001 after 31 people died of kidney failure while on the drug.) The Petersons filled out a complaint on the FDA Web page and encourage other Lipitor sufferers to do the same.
Frustrated by doctors who doubt the connection between Lipitor and health problems, the Petersons are awaiting the results of a study being conducted by Dr. Beatrice Golomb, a neurologist at the University of California-San Diego, on the effects of statin drugs. As reported by the Wall Street Journal this week, Golomb found that 15 percent of statin patients developed some cognitive side effects. In the meantime, the couple is focusing on Doug's recovery and staying positive.
"At this point, I consider myself lucky I'm not in a wheelchair," said Doug, who is currently in phsyical therapy. "There are no guarantees in life. Your birth certificate doesn't come with a warranty."
Rita - 24 Jun 2005 00:47 GMT >While small memory glitches can happen at any age, pervasive memory >loss is not normal in one's 40s and 50s or even 60s and 70s. [quoted text clipped - 8 lines] >Memory loss is a symptom not a joke. And brain damage from statins may >be irreversible. The kind of memory loss we have been discussing is an artifact of aging for many. Obviously there are things to be wary about -- it can be a precursor of serious diseases if it worsens.
The American Academy of Physicians suggests:
Aging may affect memory by changing the way your brain stores information and by making it harder to recall stored information.
Your short-term and remote memories aren't usually affected by aging. But your recent memory may be affected. You may forget names of people you've met recently. These are normal changes.
So to be more accurate it is recent memory loss that is normal with aging.
Obviously, taking statins confounds the picture. I've never said it did not.
But I think when recent memory loss occurs, it gives one pause and one wonders if one is developing Alzheimer's disease.
There is a difference:
The wonder of the brain is that if any of these events are of particular interest to you, you may remember them for months, or years or even for the rest of your life. But if an Alzheimer's patient is among us, who is even in the early stages of the disease and even if he or she thinks that the events are very important, it's very unlikely that they will remember for more than a few hours and certainly not more than a few days.
As the disease progresses, the span over which Alzheimer's patients can remember things gradually shrinks--from days and hours to minutes, then to seconds and then to nothing. Unfortunately, this is not only a devastating disease but an extremely common one. We estimate that it affects six million people in the U.S. alone and costs 100 billion dollars a year.
Bill - 24 Jun 2005 01:13 GMT >>While small memory glitches can happen at any age, pervasive memory >>loss is not normal in one's 40s and 50s or even 60s and 70s. [quoted text clipped - 46 lines] > disease but an extremely common one. We estimate that it affects six > million people in the U.S. alone and costs 100 billion dollars a year. My (slight) memory problems may or may not be attributible to statins. But if they were, I would continue with the statins.
Bill
Jason - 24 Jun 2005 16:46 GMT > >>While small memory glitches can happen at any age, pervasive memory > >>loss is not normal in one's 40s and 50s or even 60s and 70s. [quoted text clipped - 51 lines] > > Bill Bill, If you continue to take statins, I hope that you will at least consider reading "What You Must Know About Statin Drugs and Their Natural Alternatives" by Jay S. Cohen, MD. When you get the book, read pages 86-90. Dr. Cohen discusses memory problems on those pages and mentions some people (such as Dr. Ulene) that now have very serious memory problems due to statins. I would hate it if you developed serious memory problems. Jason
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zee - 24 Jun 2005 01:55 GMT > >While small memory glitches can happen at any age, pervasive memory > >loss is not normal in one's 40s and 50s or even 60s and 70s. [quoted text clipped - 22 lines] > your recent memory may be affected. You may forget names of people you've > met recently. These are normal changes. This type of memory loss can be misinterpreted as coming from aging, when it comes from statins. This is further confounded by the fact that most people prescribed statins *are*....older.
> So to be more accurate it is recent memory loss that is normal with > aging. To be accurate it is recent and short term memory loss, what we call "working memory" which occurs from statins. And from Alzheimers. And from aging.
> Obviously, taking statins confounds the picture. I've never said it > did not. Nor would I!
> But I think when recent memory loss occurs, it gives one pause and one > wonders if one is developing Alzheimer's disease. That's right. And sadly, those who have Alzheimer's do not recover. Those who have statin induced memory loss usually recover, to varying degrees depending on the individual, the dose of statin, length of statin use and which statin was used.
> There is a difference: > [quoted text clipped - 4 lines] > events are very important, it's very unlikely that they will remember for > more than a few hours and certainly not more than a few days. A very good description of memory loss owing to with statin induced memory loss, and statin induced transient global amnesia.
> As the disease progresses, the span over which Alzheimer's patients can > remember things gradually shrinks--from days and hours to minutes, then to > seconds and then to nothing. Unfortunately, this is not only a devastating > disease but an extremely common one. We estimate that it affects six > million people in the U.S. alone and costs 100 billion dollars a year. Some researchers estimate many people diagnosed with Alzheimer's have been mistakenly diagnosed. Because as I have pointed out, the brain is the same brain. There is no unique type of memory loss from statins.
Statin induced memory loss can reasonably be diagnosed by stopping the statin for at least several months to see if the person recovers.
Sadly, this is not true with Alzheimer's which can only be diagnosed by autopsy.
Zee
Jim Chinnis - 24 Jun 2005 03:11 GMT "zee" <outrider@despammed.com> wrote in part:
>To be accurate it is recent and short term memory loss, what we call >"working memory" which occurs from statins. I thought the only controlled studies evidence of memory problems from statins mostly had to do with longer term memory. Specifically, there was a slight loss of the usual benefit attributable between similar tests administered months apart. A repeat of the study showed inconsistent results. -- Jim Chinnis Warrenton, Virginia, USA
zee - 24 Jun 2005 03:30 GMT > "zee" <outrider@despammed.com> wrote in part: > [quoted text clipped - 3 lines] > I thought the only controlled studies evidence of memory problems > from statins mostly had to do with longer term memory. I don't think the studies indicate that; hear it is not so from anecdotal reports, and can attest it is not so from my own experience.
> Specifically, there was a slight loss of the usual benefit > attributable between similar tests administered months apart. A > repeat of the study showed inconsistent results. My understanding of the Muldoon work is not from a reading of the study but from reading Muldoon discussing the study in Neuropsychology of Cardiovascular Disease (Waldstein et al).
Zee
> -- > Jim Chinnis Warrenton, Virginia, USA Jim Chinnis - 24 Jun 2005 03:20 GMT Rita <nitany_98@yahoo.com> wrote in part:
>I don't believe my reasoning powers have begun to fail, nor my >ability to read and absorb fairly challenging material. [quoted text clipped - 9 lines] >Although I do make use of Google to give me clues sometimes as to >the name or term I want to recall:) Good description. I've always had memory problems, and they are a bit worse now at 61 and pretty much as you describe. Overlaid on my terrible memory is a slight loss of ability to recall on demand, especially things from recent memory.
I do take folate, but I limit it to about 800 mmg awaiting further evidence pro and con. -- Jim Chinnis Warrenton, Virginia, USA
zee - 24 Jun 2005 03:52 GMT I did take folate for a short time, thinking it mattered in cardiovascular disease protection for me; would lower my homocysteine. It didn't lower it much.
When the study about folate and cancer came out I contacted the author. He said he would not advise taking folate. I mused that perhaps I would drop to one mg from the five I had been taking.
He repeated his statement.
I was a bit taken aback, used more to reticence from researchers. That conversation, further readings on this issue, and discussion here, convinced me the homocysteine theory wasn't clear enough for me to ignore the possible cancer risk. So I stopped using it.
As for memory; I have found I think better when I drink coffee throughout the day rather than all in the moning, use raw cornstarch and orange juice cocktails throughout the day, and for some time after exercise, even though I am also then in a lot of pain.
Zee
Jim Chinnis - 24 Jun 2005 17:54 GMT "zee" <outrider@despammed.com> wrote in part:
>I did take folate for a short time, thinking it mattered in >cardiovascular disease protection for me; would lower my homocysteine. >It didn't lower it much. It doesn't lower mine much either, even when combined with B6.
>When the study about folate and cancer came out I contacted the author. >He said he would not advise taking folate. I mused that perhaps I >would drop to one mg from the five I had been taking. > >He repeated his statement. There is also the following, though I don't have the full text and I'm not sure I understand the various relationships among DNA methylation, MTHFR polymorphisms, and folate levels anyway:
J Laryngol Otol. 2005 May;119(5):371-6. Related Articles, Links
Association between methylenetetrahydrofolate reductase polymorphisms, alcohol intake and oropharyngolaryngeal carcinoma in northern Italy.
Capaccio P, Ottaviani F, Cuccarini V, Cenzuales S, Cesana BM, Pignataro L.
IV Clinica Otorinolaringoiatrica, Azienda Ospedaliera L Sacco, Milan, Italy.
Folate metabolism dysregulation may lead to abnormal cell proliferation and predispose to carcinogenesis by inducing DNA hypomethylation. Folate pathways may be modified by polymorphisms in relevant genes, such as that for methylenetetrahydrofolate reductase (MTHFR), or by alcohol consumption. We investigated the relationship between MTHFR mutations at nucleotides C677T and A1298C, which cause reduced MTHFR enzyme activity, and susceptibility to oropharyngolaryngeal carcinoma in 65 patients and 100 controls. We isolated DNA from peripheral blood leukocytes. In oropharyngolaryngeal carcinoma cases the C677T heterozygous genotype was more frequent (p = 0.018), the allele frequency of MTHFR 677T was greater (p = 0.019) and the genotype 677TT/1298AA was more frequent (p = 0.001). A higher risk of carcinoma was found in the case of moderate drinkers with mutant MTHFR homozygosis or double heterozygosis (OR = 21.2 and OR = 9.1, respectively; p trend = 0.002), and the association was maintained for the different cancer sites (glottic, supraglottic, oropharyngeal). Our findings support the hypothesis that the interaction of alcohol intake and MTHFR polymorphisms might contribute to susceptibility to carcinogenesis of the oropharyngolaryngeal tract.
And similarly:
Cancer Epidemiol Biomarkers Prev. 2005 Jun;14(6):1470-6. Related Articles, Links
5,10-Methylenetetrahydrofolate reductase polymorphisms and the risk of pancreatic cancer.
Li D, Ahmed M, Li Y, Jiao L, Chou TH, Wolff RA, Lenzi R, Evans DB, Bondy ML, Pisters PW, Abbruzzese JL, Hassan MM.
Department of Gastrointestinal Medical Oncology, Unit 426, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. dli@mdanderson.org
To test the hypothesis that 5,10-methylenetetrahydrofolate reductase (MTHFR) polymorphisms modify the risk of pancreatic cancer, we conducted a hospital-based, case-control study involving 347 patients with newly diagnosed pancreatic adenocarcinoma and 348 healthy controls, frequency matched by age, sex, and race. MTHFR polymorphisms were determined using the PCR-RFLP method. Association of these polymorphisms with the risk of pancreatic cancer was estimated by unconditional logistic regression analysis. We found that the C667T (but not the A1298C) polymorphism had a significant main effect on the risk of pancreatic cancer. The frequencies of the MTHFR 667CC, 667CT, and 667TT genotypes were 49.5%, 38.6%, and 11.9%, respectively, among cases compared with 48.5%, 45.0%, and 6.5%, respectively, among controls. Individuals with the 667TT genotype displayed a 2-fold increased risk for pancreatic cancer compared with those with the CC/CT genotypes [adjusted odds ratio (OR), 2.14; 95% confidence interval (95% CI), 1.14-4.01]. Multivariate analyses found that the effect of the 677TT genotype on the risk of pancreatic cancer was present among ever smokers (OR, 5.53; 95% CI, 2.0-15.3) and ever alcohol drinkers (OR, 3.16; 95% CI, 1.30-7.69) but not in never smokers (OR, 0.82; 95% CI, 0.33-2.06) and never drinkers (OR, 1.42; 95% CI, 0.56-3.62). Furthermore, a positive interaction between the MTHFR TT genotype and heavy smoking or heavy alcohol consumption was detected. The OR (95% CI) of pancreatic cancer was 6.83 (1.91-24.38) for heavy smokers among the TT carriers compared with never smokers with the CC/CT genotypes and 4.23 (0.88-20.3) for heavy drinkers with the TT genotype compared with nondrinkers with the CC/CT genotypes. These observations support a role for folate metabolism in pancreatic cancer, especially among smokers and heavy drinkers.
And then a think piece:
Crit Rev Oncol Hematol. 2005 Jul;55(1):13-36. Related Articles, Links
Folate and its preventive potential in colorectal carcinogenesis. How strong is the biological and epidemiological evidence?
Bollheimer LC, Buettner R, Kullmann A, Kullmann F.
Department of Internal Medicine I, University of Regensburg, 93042 Regensburg, Germany.
Based on a 15-year old hypothesis, it is believed that an adequate ingestion of folate vitamins decreases, whereas a nutritional depletion of folate increases the risk of colorectal cancer. The present article reviews the efforts to provide biochemical and epidemiological evidence for folate as a chemopreventive agent against colorectal carcinogenesis. BIOLOGICAL EVIDENCE:: Tetrahydrofolates govern the intracellular one-carbon metabolism and account for proper DNA biosynthesis and macromolecular modification. Numerous experimental studies traced different molecular pathways and tried to link folate depletion with DNA instability and/or mutagenesis. However, none of the proposed underlying molecular mechanisms appear clearly defined. EPIDEMIOLOGICAL EVIDENCE:: Numerous case-control and prospective studies have been conducted on folate and colorectal cancer, which all together miss a clinical bottom line. The recommendation of folate intake to prevent colorectal cancer is therefore not evidence-based.
On the other hand, it looks like high dietary folate is good for your prostate :-)
Cancer Epidemiol Biomarkers Prev. 2005 Apr;14(4):944-8. Related Articles, Links
Dietary folate and risk of prostate cancer in Italy.
Pelucchi C, Galeone C, Talamini R, Negri E, Parpinel M, Franceschi S, Montella M, La Vecchia C.
Istituto di Ricerche Farmacologiche Mario Negri, Via Eritrea 62, 20157 Milano, Italy. pelucchi@marionegri.it
Folate status may affect cancer risk through its role in both methylation and nucleotide synthesis of DNA. A low dietary intake of folate has been linked to risk of several cancers, but epidemiologic studies with reference to prostate cancer are scanty. We therefore analyzed data from a case-control study of prostate cancer conducted between 1991 and 2002 in various areas of Italy. Cases were 1,294 patients with incident, histologically confirmed prostate cancer and controls were 1,451 patients admitted to the same network of hospitals of cases for acute, nonneoplastic conditions. All subjects were < 75 years old. Intake of folate and other nutrients was computed from a validated food frequency questionnaire. We adjusted for energy intake using the residual method, and calculated multivariate odds ratios (OR) and 95% confidence intervals (CI) using unconditional logistic regression. The OR of prostate cancer was 0.66 (95% CI, 0.51-0.85) for the highest versus the lowest quintile of folate intake. The relation between dietary folate and prostate cancer was consistent across strata of age, methionine, vitamin B6, and alcohol intake, and did not vary substantially according to Gleason score of prostate cancer. The combined OR for high-folate and low-alcohol intake versus low-folate and high-alcohol intake was 0.46 (95% CI, 0.29-0.75). Therefore, this study supports a favorable role of dietary folate on prostate cancer risk.
-- Jim Chinnis Warrenton, Virginia, USA
zee - 24 Jun 2005 18:08 GMT Yes I saw the first two as well, and couldn't even pronounce (make a habit of not posting what I can't pronounce...).
As the study I posted up-thread mentioned (and that is not the study/author I referred to regarding a private e-mail caution re folate) there is cause for concern about supplementing, for everyone.
There may be justified application in certain cases, but I'll now wait for the evidence.
I find it disturbing that many women will take the advice of a male poster just because he's male. I have seen it happen over and over, to the detriment of one who 'listened' last year, and now has disabling peripheral neuropathy and mitochondrial myopathy from her 'recommended' statin. I think this plays a role in many women's statin injury; they are too quick to defer.
Zee (sans defer)
Jim Chinnis - 24 Jun 2005 18:29 GMT "zee" <outrider@despammed.com> wrote in part:
>Yes I saw the first two as well, and couldn't even pronounce (make a >habit of not posting what I can't pronounce...). [quoted text clipped - 15 lines] >Zee >(sans defer) Biochemistry isn't my strong suit. A question I have about folate metabolism is as follows:
It seems that folate reduces homocysteine, and I've seen the metabolic pathways for that. But I also see that "antifolates" such as the catechins (such as EGCG) in green tea (or methotrexate, for that matter, I guess) can reduce homocysteine? Does anyone here know how that happens?
In fact, sometimes I see reports that suggest both that folate supplementation may be anti carcinogenic AND that antifolates may be anticarcinogenic. What gives?
Re women and men. That's the well-known cross sex effect, at least in part. I'm more likely to accept what a woman tells me. -- Jim Chinnis Warrenton, Virginia, USA
zee - 24 Jun 2005 18:36 GMT > "zee" <outrider@despammed.com> wrote in part: > [quoted text clipped - 30 lines] > supplementation may be anti carcinogenic AND that antifolates may > be anticarcinogenic. What gives?
> Re women and men. That's the well-known cross sex effect, at least > in part. I'm more likely to accept what a woman tells me. Yes I agree; it's a 'cross sex effect. I was always 'listened' too very closely when I was 25. Didn't much matter what I said.
Zee
> -- > Jim Chinnis Warrenton, Virginia, USA Jason - 24 Jun 2005 21:26 GMT > > "zee" <outrider@despammed.com> wrote in part: > > [quoted text clipped - 38 lines] > > Zee Zee, I bet I know the reason that people listened to you more when you were 25. It's my guess that you are very pretty. It's natural for people (men and women) to pay attention to pretty women that are below the age of 30. I saw a television show where a really beautiful 20 year old woman dressed up as a really obese woman that had terrible make up and glasses. The camera crew followed around all day (including bars). People ignored her. When the same woman dressed up in normal clothing and normal makeup--lots of men and women started converstations with her. I learned a lot from that show which is why I still remember it. Jason
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zee - 25 Jun 2005 03:16 GMT Sorry to say Jason, I'm an obese woman with terrible make up and glasses now, and I was at 25 too.
It was a just a little attempt at levity.
Zee
Jason - 25 Jun 2005 06:10 GMT > Sorry to say Jason, I'm an obese woman with terrible make up and > glasses now, and I was at 25 too. > > It was a just a little attempt at levity. > > Zee Zee, You must have an excellent personality. I do know for sure that you do care for other people. That's the reason that you are trying to help them. I think that makes you a wonderful person. I was also not very handsome. None of the pretty girls would go out with me. Jason
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Robert - 24 Jun 2005 20:06 GMT > Yes I saw the first two as well, and couldn't even pronounce (make a > habit of not posting what I can't pronounce...). [quoted text clipped - 15 lines] > Zee > (sans defer) We get it. L has already given people a heads up on your disturbed behavior. You said you liked him because of a shared commonality of background, area etc. You need to let go before he finds you in his bath tub with a knife popping out of the water.
William Wagner - 24 Jun 2005 20:17 GMT > > Yes I saw the first two as well, and couldn't even pronounce (make a > > habit of not posting what I can't pronounce...). [quoted text clipped - 21 lines] > You need to let go before he finds you in his bath tub with a knife popping > out of the water. Back Off. Anyone that writes and suggests disturbed behavior and worry about brain washing needs a vacation. What is the expression? People that live in glass houses should not throw stones. Bill
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Robert - 25 Jun 2005 08:02 GMT > > > Yes I saw the first two as well, and couldn't even pronounce (make a > > > habit of not posting what I can't pronounce...). [quoted text clipped - 26 lines] > People that live in glass houses should not throw stones. > Bill She said she was disturbed.
"I find it disturbing that many women will take the advice of a male poster just because he's male. I have seen it happen over and over, to the detriment of one who 'listened' last year, and now has disabling "
Who's throwing rocks here?
Tell your girlfriend to stop throwing rocks is what I said. She needs to let go is what I said. Move on and go to the movies just don't see anything with knives involved.
Jason - 25 Jun 2005 11:26 GMT > > > > Yes I saw the first two as well, and couldn't even pronounce (make a > > > > habit of not posting what I can't pronounce...). [quoted text clipped - 42 lines] > go is what I said. Move on and go to the movies just don't see anything with > knives involved. That's great advice.
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listener - 24 Jun 2005 21:26 GMT >> Yes I saw the first two as well, and couldn't even pronounce (make a >> habit of not posting what I can't pronounce...). [quoted text clipped - 21 lines] > You need to let go before he finds you in his bath tub with a knife > popping out of the water. Thank you.
L.
Robert - 24 Jun 2005 19:58 GMT > "zee" <outrider@despammed.com> wrote in part: > [quoted text clipped - 3 lines] > > It doesn't lower mine much either, even when combined with B6. Elevated homocysteine is a marker for folate and or B12 deficiency. They might be more sensitive than an actual B12 blood level as different compartments have different concentration levels. You may have normal blood B12 levels but be deficient in the CNS. Taking a vitamin pill may or may not do the trick. B12 absorption involving intrinsic factor and normal gastric function. Sublingual or shots with high doses are really needed before one can make any conclusions on the nature of homocysteine elevation.
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