Our skin and mucous membranes are protected by epithelial cells. This 'barrier' tissue performs its function thanks to specialized structures called 'junctions'. They ensure cell cohesion and regulate ...

A new study in mice has identified a cellular communication system in the brain’s blood vessels that helps direct blood flow to regions that are active and in need of oxygen and nutrients. The ...

Scientists found that messenger RNA (mRNA) molecules that carry genetic instructions to the far reaches of neurons in the brain tend to cluster together mostly because they are abundant, not because ...