Diseases, Conditions, Syndromes

Finger prick, venous blood can ID key Alzheimer disease biomarkers

Finger prick or venous blood collection can identify key Alzheimer disease-related biomarkers, according to a study presented at the annual Alzheimer's Association International Conference, held from July 16 to 20 in Amsterdam.

Alzheimer's disease & dementia

Eyes reveal early Alzheimer's disease

Reduced blood capillaries in the back of the eye may be a new, noninvasive way to diagnose early cognitive impairment, the precursor to Alzheimer's disease in which individuals become forgetful, reports a newly published ...

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Capillary

Capillaries ( /ˈkæpɨlɛri/) are the smallest of a body's blood vessels and are parts of the microcirculation. They are only 1 cell thick. These microvessels, measuring 5-10 μm in diameter, connect arterioles and venules, and enable the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and surrounding tissues. During embryological development, new capillaries are formed by vasculogenesis, the process of blood vessel formation occurring by a de novo production of endothelial cells and their formation into vascular tubes. The term angiogenesis denotes the formation of new capillaries from pre-existing blood vessels.

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