An international group of researchers has identified an important mechanism that enables stem cells to evade immune rejection ...

These blows can rupture vital blood vessels around the brain, triggering rapid bleeding that causes instant symptoms or slowly compresses the brain, leading to a coma and eventual death.

Cardiovascular system - Edexcel The cardiovascular system is made up of three main parts - the heart, the blood vessels and the blood that flows through them. Respiratory system - Edexcel The ...

Sarah Lutz, assistant professor of anatomy and cell biology in the ... But the infected mice, researchers found, had leaky blood-brain barrier vessels and impaired memory or learning.