Health knowledge made personal
Harvard University (US) team elucidates mechanism by which coffee may help to reduce the risk of developing type-2 diabetes.
Insufficient vitamin B-12 status may increase the risk of reduced mental function and increase the loss of brain volume, among older people.
Consuming walnuts may help to increase inferential reasoning, a skill necessary for critical thinking and decision-making.
The human brain doesn't stop developing at adolescence, but continues well into our 20s
Vigorous exercise raises osteocalcin levels, a hormone associated with bone heath, insulin sensitivity and fat stores.
Just hours after exposure, heavy air pollution may hasten the onset of a heart attack.
Spanish researchers find that a diet rich in olive oil and nuts beats drug therapies for heart disease.
Harvard University (US) team reports that being depressed may increase a person’s risk of stroke and stroke death.
Apples, and other fruits with white flesh, can reduce the risk of stroke.
University of California (US) team identifies more than 70 genes involved in regenerating nerves after injury.
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Vitamin B-12 (also known as cobalamin and cyanocobalamin), is required for the production of red and white blood cells and blood platelets (thrombocytes), the manufacture of substances needed for correct cell functioning, and the metabolism of nutrients necessary for cell growth. Vitamin B-12 is essential for the recycling of certain enzymes that maintain the health of blood, nerve, and other cells. Christine Tangney, from Rush University (Illinois, USA), and colleagues enrolled 121 men and women, ages 65 years and over, for a study in which blood samples were collected at the study's start and conclusion, and brain scans conducted after 4 1/2 years. The MRI scans revealed that total brain volume was decreased in those subjects who were vitamin B-12 deficient. As well, the team found that markers of vitamin B-12 status were linked to poor episodic memory. Further, elevated homocysteine (often associated with low vitamin B-12 status) was linked with decreased total brain volume.
C.C. Tangney, N.T. Aggarwal, H. Li, R.S. Wilson, C. DeCarli, D.A. Evans, M.C. Morris. “Vitamin B12, cognition, and brain MRI measures: A cross-sectional examination.” Neurology, September 27, 2011, 77:1276-1282.