home
RSS
Vitamin B12 deficiency linked to memory problems
September 26th, 2011
04:49 PM ET

Vitamin B12 deficiency linked to memory problems

There's been a lot of buzz about vitamin B12 in recent years, and here's another reason to pay attention to it:

A new study finds that a deficiency in vitamin B12 is associated with memory and thinking problems, as well as brain shrinkage. The research is published in the journal Neurology.

Researchers did not prove that low vitamin B12 levels cause these cognitive abnormalities, but they did find a strong association with markers of deficiency, said study co-author Dr. Martha Morris of the Rush University Medical Center in Chicago.

The theory is that adequate levels of vitamin B12 is necessary for the brain's myelin sheath, an insulating layer around nerves. When the sheath gets damaged, impulses between transmitted along nerve cells slow down.

Vitamin B12 is found in meats, fish, shellfish and dairy products, and some cereals are fortified with it. People over 65 in particular may need B12 supplements because older patients' bodies have a harder time absorbing this vitamin.

Researchers looked at 121 participants in the Chicago Health and Aging Project. They looked at both serum levels of vitamin B12 and markers of vitamin B12 deficiency.

The study found that methylmalonate, a marker of vitamin B12 deficiency, is associated with a reduction of brain volume and so may contribute to cognitive problems. Homocysteine, an amino acid associated with low B12 levels as well as folate, was linked to thinking problems through a different mechanism involving abnormal white matter signals (as seen on certain kinds of MRIs).

There aren't a lot of data on using these markers clinically for the purposes of testing the health of older patients, said Dr. James Lah, neurologist at the Emory University School of Medicine in Atlanta, Georgia, who was not involved in the study. The study points to them as potentially helpful, but more research needs to be done, he said.

The study did not find an association between the serum B12 levels of participants and the likelihood of brain problems. Morris said that makes sense because while low levels negatively affect the brain, high levels above normal aren't necessarily better than adequate levels.

"There’s a level we should all have, and if you fall below that, it could cause problems," she said.

Quantifying that level is up for debate, but the National Institutes of Health offers  guidelines for recommended vitamin B12 intake at various ages.

Morris and colleagues did not look at this phenomenon in Alzheimer's patients, but a small 2010 study in Neurology found that people who tended to eat vitamin B12-rich foods are less likely to develop Alzheimer's than those who did not. Vitamin B12 deficiency has not been shown to be directly involved in the pathology of Alzheimer's in the brain, but it may aggravate the brain in other ways that could lead to Alzheimer's. "We can't discount its involvement," Lah said.


soundoff (187 Responses)
  1. original site

    If you want a good plumber call Winston Salem Plumbing Pros, 111 N Chestnut St, Winston Salem, NC 27101

    http://best-plumber-stafford-va93602.dsiblogger.com/27748928/facts-about-plumber-winston-salem-nc-revealed

    January 13, 2021 at 15:17 | Report abuse | Reply
  2. LorenaBlairjar

    unusual dating service

    Different attributes are available in men and women and their search for the partners. Criteria to have a partner can vary for every person. The age at which people want to get into serious working relationships can be also different. For the successful people going past their prime, It may be a concern to hire a company who understands their feelings and shares their life. for many people, Finding partners at a late age may be a taboo and a problem. Some successful and rich people want to go into second family relationships after having suffered in their prime. These people do not want to become involved in random online dating or spend time in having interactions with such partners, Who do not fit their bill. In this, The zoosk dating sites introduction agency London does a great job in bringing together two like minded people, Who can strike it off from the comfort of the first date, that may be accomplished in certain ways.

    Getting to know the requirements of the rich closely Listening to the affluent and celebraties people and discussing their requirements from a relationship is the first and foremost aspect of making a bond between two people. The Elite going out with Agency UK, Takes pride in learning the requirements of their clients fully, Before proceeding on to the finding of the partners for dating. Even though international dating is no problem, The partners from through the seas can be searched, If the factors are being fulfilled. and so, To carry out the proper search for the right prospective partners, It is important to understand certain requirements of the clients.

    Search for prospective partners extend even to international arena in the field of international dating, there are various chances of finding prospective partners. The introduction agency London can help clients in getting partners from any place, If these customers suit the bill. of this regards, The elite dating agency UK seems to be a great option purely because can arrange the dates from any place, As far as the criteria are being matched. This capability ensures that their clients have a wide playing field should they are in search for the partners.

    Keeping the matters private People at high levels in the society, will most certainly be fearful of their secrets being leaked. This is an issue which is closely guarded by the elite dating agency UK, Thereby keeping the matters confidential for the clientele. This aspect is liked by numerous, since can go out on dates, Without having to consider these things going into the public domain. within this regards, The international dating service helps the clients as they are going out for dates in areas where many people do not recognise them or know their status.

    The work done by the introduction agency London can be quite intricate as far as personalised features are engaged. They can keep the matter secret, Along with providing wide range of options even extending up to the point Dating, Along with correct planning. several advantages are accrued by the clients as help for their dating process, So that the chances of finding someone suitable increases manifold.

    January 15, 2021 at 23:45 | Report abuse | Reply
  3. Quinton Topolski

    Do you want get more social network traffic, likes, and retweets? SMM Supreme uses his own panel system to generate social media traffic to any website. Best Quality-Price Ratio on the market with 714928 orders until now. – Facebook Fan Page Likes: $4.50/1000 – Instagram Followers: $0.78/1000 – Youtube Views: $1.62/1000 – Twitter followers: $2.10/1000 – Paypal Deposit – Payeer Deposit – Automatic order processing – 30 minutes to send to customers

    https://bit.ly/2Hnl7vE

    January 28, 2021 at 00:57 | Report abuse | Reply
  4. Shon Dhillon

    Heart Attack from Standing Up Too Fast Caused By Newly Discovered Protein – You need to know this information because it could save your life one day…. And also, because scientists recently discovered a foreign inflammatory protein that’s causing rapid plaque buildup in the arteries and around the heart… That’s why this is critical information for anyone over 40, woman or man… Fortunately, there’s a quick test you can do at home today, to see if you’re at risk of this deadly heart attack triggering inflammatory protein… It only takes 30 seconds… ==>> How To Detect The Deadly Heart Attack Triggering Inflammatory Protein (Could Save Your Life) Click here to learn more > https://bit.ly/39p2J0R

    https://tinyurl.com/y6hzj4t7

    January 30, 2021 at 09:20 | Report abuse | Reply
  5. Best Instagram Video Views

    very interesting topic, great post.

    https://bonuslikes.com/product-tag/tw-likes/

    February 1, 2021 at 08:49 | Report abuse | Reply
  6. Boost Facebook Post Likes

    I simply wanted to write down a brief note to be able to thank you for all of the superb techniques you are writing at this website. My considerable internet investigation has at the end been compensated with reputable facts and strategies to share with my contacts. I would repeat that most of us readers are unquestionably blessed to dwell in a fine community with very many marvellous people with very beneficial points. I feel rather happy to have encountered the website and look forward to plenty of more thrilling minutes reading here. Thank you again for all the details.

    https://bonuslikes.com/product-tag/cheapest-twitter-likes-500/

    February 2, 2021 at 06:07 | Report abuse | Reply
  7. Carmelia Peggs

    Earn 1000 a Day With Our Passive Income System

    https://warriorplus.com/o2/a/yhryb/0

    February 6, 2021 at 10:13 | Report abuse | Reply
  8. Clifford Natiello

    Response has been tremendous to this new system I guess that's because if you can order a pizza, you literally have all the skills you need to make this system work for you. http://divineurl.com/28di0

    http://tvc.in/2vp3l

    February 9, 2021 at 01:12 | Report abuse | Reply
  9. Europa-Road

    I do love the way you have framed this particular difficulty and it really does present us some fodder for consideration. On the other hand, because of what I have seen, I simply just wish as the responses stack on that people today remain on issue and not embark upon a soap box of some other news du jour. Yet, thank you for this superb point and although I can not go along with this in totality, I regard your viewpoint.

    https://europa-road.eu/

    February 9, 2021 at 06:07 | Report abuse | Reply
  10. Ellie Simpton

    Earn 500 a Day With Our Passive Income System Doing These 3 Steps: Step 1: Get our ready made niche websites, Step 2: Setup your Paypal account. Step 3: Run our Unlimited Traffic System from our Free 850 sources of traffic and start earning your income in same day. More info: https://www.k3reviews.com/2020/08/16/monster-mode-700k/

    https://www.k3reviews.com/

    February 13, 2021 at 00:48 | Report abuse | Reply
  11. Your Private Proxies

    some really interesting info , well written and loosely user friendly.

    https://dreamproxies.com/tag/limited-proxies-cheap-buy/

    February 15, 2021 at 11:06 | Report abuse | Reply
  12. High-Do-Follow Forum-Backlinks

    Create a profitable digital marketing strategy and plan: https://www.seoclerk.com/Virtual-Assistant/840836/I-will-create-a-profitable-digital-marketing-strategy-and-plan

    https://www.seoclerk.com/user/jackpower99

    February 16, 2021 at 09:58 | Report abuse | Reply
  13. Best Proxies

    I’m impressed, I must say. Really hardly ever do I encounter a blog that’s each educative and entertaining, and let me tell you, you've gotten hit the nail on the head. Your idea is outstanding; the issue is something that not sufficient individuals are talking intelligently about. I'm very completely happy that I stumbled throughout this in my search for something relating to this.

    https://dreamproxies.com/tag/2000-private-proxies-cheap-buy/

    February 16, 2021 at 13:12 | Report abuse | Reply
  14. Jenifer Schange

    http://jtayl.me/4nw9q

    http://divineurl.com/29xc3

    February 16, 2021 at 15:51 | Report abuse | Reply
  15. pc repair

    Lovely site! I am loving it!! Will come back again. I am taking your feeds also.

    https://cds-consultants.com

    February 21, 2021 at 05:23 | Report abuse | Reply
  16. ClarkTauts

    p77tt oold3 usu5

    February 28, 2021 at 11:01 | Report abuse | Reply
  17. ClarkTauts

    a14wf uhq07 navk

    March 1, 2021 at 06:59 | Report abuse | Reply
  18. Irwin Fourre

    Hey there just wanted to give you a quick heads up. The text in your content seem to be running off the screen in Chrome. I'm not sure if this is a format issue or something to do with internet browser compatibility but I thought I'd post to let you know. The design look great though! Hope you get the problem fixed soon. Thanks

    https://proxyti.com/buy/1000-private-proxies/

    March 2, 2021 at 22:15 | Report abuse | Reply
  19. Burton Siebert

    Thanks a lot for providing individuals with remarkably breathtaking possiblity to check tips from this web site. It is often very terrific plus packed with a great time for me personally and my office acquaintances to search your website on the least thrice every week to read the fresh guidance you have got. And definitely, I'm usually pleased for the extraordinary secrets you serve. Selected 2 facts in this posting are absolutely the best I've had.

    https://www.electricpercolatorcoffeepot.com/10-top-coffee-bloggers/

    March 6, 2021 at 14:25 | Report abuse | Reply
  20. zortilonrel

    I'm extremely impressed together with your writing abilities as neatly as with the structure on your weblog. Is that this a paid subject or did you modify it your self? Anyway stay up the excellent quality writing, it’s uncommon to peer a great weblog like this one today..

    http://www.zortilonrel.com/

    March 21, 2021 at 18:13 | Report abuse | Reply
1 2 3

Leave a Reply to Boost Facebook Post Likes


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.