|Blogs||Articles||Organizations||Biography||Jack's Book||Contact Information||Links|
Navigation: SOS Sisson > Traumatic Injury Blog
Jack Sisson's TBI Blog
A hug is duct tape for the soul.
Saturday, February 23, 2013
Antioxidants may not ward off strokes, dementia
Researchers found that people who ate or drank lots of coffee, tea, oranges and red wine were just as likely to develop neurological problems over the next 14 years as those who skimped on antioxidant-rich foods.
"The literature on antioxidants and dementia has been mixed," said Elizabeth Devore, who led the new research at Brigham and Women's Hospital in Boston.
Although there's some evidence that specific vitamins have a protective effect in the brain, she said it's unclear whether that's the case for all antioxidants - which include vitamin C, vitamin E, selenium and flavonoids.
"There is the thought that overall antioxidants might be helpful, but it's also true that if you actually look at the individual antioxidants, there's not necessarily a reason to think that one would behave exactly the same way in the body as the next."
The Netherlands-based study included 5,395 people aged 55 years and older, who reported their usual consumption of 170 different foods in 1990.
Devore and her colleagues tracked those participants over the next 14 years, during which 599 were diagnosed with dementia - including 484 with Alzheimer's disease - and 601 had a first stroke.
People who consumed the most antioxidants, according to an analysis of their diets, were just as likely to end up having either of those neurological disorders as study participants who hardly got any antioxidants.
That pattern held after the researchers took into account people's ages, how much they ate in general and whether they smoked, according to the findings published Wednesday in Neurology.
There was also no link between total dietary antioxidants and white or gray matter volume in the brain, according to scans done on 462 of the participants.
Since the study looked only at foods consumed, it can't address whether antioxidant supplements may impact dementia or stroke risk, according to Devore.
Her team concludes that it's still likely certain individual antioxidants have positive effects on the brain.
"There have been a number of studies that have shown that higher intake of dietary vitamin E is associated with lower risk of dementia," Devore told Reuters Health. The same goes for vitamin C and stroke risk, she added.
That suggests people should continue eating plenty of fruits and vegetables, including berries, and seek out specific antioxidants, she said.
"For dementia specifically and stroke specifically, if you're worried about those… you should try to take in vitamin E for dementia and vitamin C for stroke."
LinksTBI Film Reviews
TBI Book Reviews
Traumatic Brain Injury Law Blog
SoapBlox/Chicago: Protecting Our Troops
Head Injury Survival Journal
Losing the Physical Self
Tower of Hanoi: Instructions for this popular puzzle can be viewed simply by clicking the Instructions button on that page.
May 2005 June 2005 July 2005 August 2005 September 2005 October 2005 November 2005 August 2006 September 2006 October 2006 December 2006 January 2007 February 2007 March 2007 April 2007 May 2007 June 2007 July 2007 August 2007 September 2007 October 2007 November 2007 December 2007 January 2008 February 2008 March 2008 January 2009 March 2009 April 2009 December 2009 April 2010 May 2010 June 2010 July 2010 August 2010 September 2010 October 2010 November 2010 January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 July 2011 August 2011 September 2011 October 2011 November 2011 December 2011 January 2012 February 2012 March 2012 April 2012 May 2012 June 2012 October 2012 November 2012 December 2012 January 2013 February 2013 March 2013 April 2013 May 2013 June 2013 October 2013