But to understand what is really happening, we need to move beyond politics into the uncharted territory of pathology. Trump’s demagoguery is in the service of something far darker than the mere ...

The valves make sure blood flows in only one direction. The aortic valve keeps blood flowing from the left ventricle to the aorta. Your child may be born with aortic stenosis (congenital). Or it may ...

Hematopoietic stem cells (HSCs) are generated from hemogenic endothelial cells (HECs) in the floor of the dorsal aorta (DA) via endothelial-to-hematopoietic transition (EHT). Yet whether HECs and ...