Sunday, 19 November 2017    HomeAbout UsContact Us    









You are here: Home Research Vitamin C


A Critical Review of Vitamin C for the Prevention of Age-Related Cognitive Decline and Alzheimer's Disease
Posted by Admin, Senior Editor in Vitamin C
Authored by PubMed
Topics: Vitamin C Alzheimer's Disease

  Mail To Friend    Printer Friendly Bookmark and Share

Vitamin C is water-soluble, and probably the most famous of all the vitamins. Even before its discovery in 1932, physicians recognised that there must be a compound in citrus fruits preventing scurvy, a disease that killed as many as 2 million sailors between 1500 and 1800. Later researchers discovered that man, other primates and the guinea pig depend on external sources to cover their Vitamin C requirements. Most other animals are able to synthesise Vitamin C from glucose and galactose in their body. The most prominent role of Vitamin C is its immune stimulating effect, which is important for the defence against infections such as common colds. It also acts as an inhibitor of histamine, a compound that is released during allergic reactions. As a powerful antioxidant it can neutralise harmful free radicals and aids in neutralising pollutants and toxins.

Harrison FE. A critical review of Vitamin C for the prevention of age-related cognitive decline and Alzheimer's disease. 1. J Alzheimers Dis. 2012;29(4):711-26.
Antioxidants in the diet have long been thought to confer some level of protection against the oxidative damage that is involved in the pathology of Alzheimer's disease as well as general cognitive decline in normal aging. Nevertheless, support for this hypothesis in the literature is equivocal. In the case of Vitamin C (ascorbic acid) in particular, lack of consideration of some of the specific features of Vitamin C metabolism has led to studies in which classification of participants according to Vitamin C status is inaccurate, and the absence of critical information precludes the drawing of appropriate conclusions. Vitamin C levels in plasma are not always reported, and estimated daily intake from food diaries may not be accurate or reflect actual plasma values. The ability to transport ingested Vitamin C from the intestines into blood is limited by the saturable sodium-dependent Vitamin C transporter (SVCT1) and thus very high intakes and the use of supplements are often erroneously considered to be of greater benefit that they really are. The current review documents differences among the studies in terms of Vitamin C status of participants. Overall, there is a large body of evidence that maintaining healthy Vitamin C levels can have a protective function against age-related cognitive decline and Alzheimer's disease, but avoiding Vitamin C deficiency is likely to be more beneficial than taking supplements on top of a normal, healthy diet.


Link to this article:   Show: HTML LinkFull LinkShort Link
Share or Bookmark this page: You will need to have an account with the selected service in order to post links or bookmark this page.

                 
  
Subscribe via RSS or email:
Follow us through RSS or email. Click the RSS icon to subscribe to our feed.

     
  

Related Articles:
Add a Comment
You must be registered and logged in to comment.





Visit Vaccines.Me for information and education on vaccination.


Latest Articles
Some Notes of Advice on Health, Disease and 'Medicine'
Cooking With Vegetable Oils Releases Toxic Cancer-Causing Chemicals, Say Experts
Cancer Simplified: Part 5 - The Initiators and Promoters of Cancer
Cancer Simplified: Part 4 - The Immune System's In-Built Anti-Cancer Mechanism
Cancer Simplified: Part 3 - Cancer Is Simply a Failure of the Immune System
Cancer Simplified: Part 2 - An Analogy for Different Perceptions About Treatment of Cancer
Cancer Simplified: Part 1 - What Is Cancer and How Does It Develop?
Honey and Anti-Biotic Resistance: A New Approach!
On the Rejection of Hijaamah by the Physicians (Shaykh Muhammad Bin Ibraaheem Aal Al-Shaykh)
How to Limit Efffects of Bisphenol-A Upon Children

Pages
No pages found.

Most Popular
Garlic, Honey and Apple Cider Vinegar: Must Have Excellent Home Remedy
How To Eat Fruit Properly
Rocket: A Spicy Salad Leaf With Potent Health Benefits
Ibn al-Qayyim: Henna Has Many Benefits from Treating Headaches to Burns
Why We Need Protein in our Diets
Five Superfoods You Should Be Eating Everyday
Talbina: Relaxation For the Heart of the Sick Person
Deodorant And Anti-Perspirant Dangers - Do You Know What You're Putting Under Your Armpits?
The Different Kinds Of Exercises Your Body Needs
What Foods Are Good For Your Eyesight?

Archives (View more)
2016 • January
2015 • November
2014 • March
2014 • February
2013 • October
2012 • October
2012 • August
2012 • January
2011 • December
2011 • November
2011 • October
2011 • September


Copyright © 2017 . All rights reserved. RSSTagsPrivacyLegal and Terms of Use LearnArabic.Com