Study ties passive smoking to dementia
Geplaatst op 13 februari 2009 - 09:30
LONDON (Reuters) - Passive smoking appears to significantly raise a person's risk of dementia and other forms of cognitive problems, British and U.S. researchers said on Friday.
"Invisible Pink Unicorns are beings of great spiritual power. We know this because they are capable of being invisible and pink at the same time. Like all religions, the Faith of the Invisible Pink Unicorns is based upon both logic and faith. We have faith that they are pink; we logically know that they are invisible because we can't see them."
Geplaatst op 13 februari 2009 - 11:25
Several prospective studies have suggested that smoking in middle aged and elderly people is associated with an increased risk of dementia1234, but at least one study found no association5, and one report suggested that nicotine may have a protective effect on AD by reducing senile plaque formation6.
1 Whitmer, RA, Sidney, S, Selby, J, et al. Midlife cardiovascular risk factors and risk of dementia in late life. Neurology 2005; 64:277.
2 Almeida, OP, Hulse, GK, Lawrence, D, Flicker, L. Smoking as a risk factor for Alzheimer's disease: contrasting evidence from a systematic review of case-control and cohort studies. Addiction 2002; 97:15.
3 Tyas, SL, White, LR, Petrovitch, H, et al. Mid-life smoking and late-life dementia: the Honolulu-Asia Aging Study. Neurobiol Aging 2003; 24:589.
4 Sabia, S, Marmot, M, Dufouil, C, Singh-Manoux, A. Smoking history and cognitive function in middle age from the Whitehall II study. Arch Intern Med 2008; 168:1165.
5 Yamada, M, Kasagi, F, Sasaki, H, et al. Association between dementia and midlife risk factors: the Radiation Effects Research Foundation Adult Health Study. J Am Geriatr Soc 2003; 51:410.
6 Ulrich, J, Johannson-Locher, G, Seiler, WO, Stahelin, HB. Does smoking protect from Alzheimer's disease? Alzheimer-type changes in 301 unselected brains from patients with known smoking history. Acta Neuropathol (Berl) 1997; 94:450.
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