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 ...

Cardiology

New technology gives unprecedented look inside capillaries

More than 40 billion capillaries—tiny, hair-like blood vessels—are tasked with carrying oxygen and nutrients to the far reaches of the human body. But despite their sheer number and monumental importance to basic functions ...

Medical research

Researchers grow capillaries with a neural organoid

A team of researchers at UC Davis has succeeded in growing capillaries on and into a neural organoid. In their paper published in the journal NeuroReport, the group describes how they grew capillaries with the organoid and ...

Genetics

A 'CRISPR' view of Sturge-Weber syndrome is coming into focus

Three-dimensional modeling and CRISPR-Cas9 gene editing technology are giving scientists a new view into Sturge-Weber syndrome, a rare congenital disorder that causes small blood vessels, called capillaries, to be malformed. ...

Oncology & Cancer

How blood vessels slow down and accelerate tumor growth

Cancer cells have an enormous need for oxygen and nutrients. Therefore, growing tumors rely on the simultaneous growth of capillaries, the fine branching blood vessels that form their supply network. The formation of new ...

Cardiology

Diabetes may impair myocardial proangiogenic response

(HealthDay)—The amplitude of therapeutic revascularization associated with recombinant adeno-associated virus (rAAV) (5 × 1012 viral particles encoding thymosin beta 4 [Tβ4]) is reduced with diabetes mellitus, according ...

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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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