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German neuroscientists reveal the physiological basis for positive, emotionally gratifying experiences to promote well-being as we age.
UK study reveals that tall women may be at greater overall risk for cancer, with significant increases in risk for each four-inch increase in height.
Australian team reports that increased intakes of vitamins A and E may significantly reduce the risk of hearing loss.
Lifestyle changes and treatment or prevention of chronic medical conditions have the potential to reduce the numbers of Alzheimer’s cases by 50% or more.
The brown skin and external layers of onions are rich in fiber and flavonoids, while the discarded bulbs contain sulphurous compounds and fructans.
Cells in the retina of the eye need to be bathed in relatively high doses of vitamin C, inside and out, to function properly.
Consuming in-shell pistachios is a weight-wise approach to healthy snacking.
People who drink hot tea or coffee are 50% less likely to carry methicillin-resistant Staphylococcus aureus (MRSA) in their noses.
Grape seed polyphenols may help prevent the development, or delay the progression, of Alzheimer's.
Traumatic brain injury (TBI), whether mild, moderate, or severe, is linked to a doubling of dementia risk.
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Nerve cells in the eye require vitamin C in order to function properly -- a surprising discovery that may suggest that vitamin C is required elsewhere in the brain for its proper functioning. Henrique von Gersdorff, from Oregon Health & Science University (Oregon, USA), and colleagues report that the brain has special receptors, called GABA-type receptors, that help modulate the rapid communication between cells in the brain. GABA receptors in the brain act as an inhibitory "brake" on excitatory neurons in the brain. The researchers found that these GABA-type receptors in the retinal cells stopped functioning properly when vitamin C was removed. Because retinal cells are a kind of very accessible brain cell, the team suggests that GABA receptors elsewhere in the brain also require vitamin C to function properly; as well, because vitamin C is a major natural antioxidant, it may be that it essentially 'preserves' the receptors and cells from premature breakdown.
Cecilia I. Calero, Evan Vickers, Gustavo Moraga Cid, Luis G. Aguayo, Henrique von Gersdorff, Daniel J. Calvo. “Allosteric Modulation of Retinal GABA Receptors by Ascorbic Acid.” The Journal of Neuroscience, 29 June 2011, 31(26):9672-9682.