Two seemingly disparate signaling pathways -- one that controls organ size in fruit flies and another important for the growth of embryos -- interact in embryonic mouse hearts to restrict cell ...

These improvements were due to a surprising finding—proliferation of endogenous heart muscle cells in the pig hearts. This is particularly noteworthy because shortly after birth, mammalian heart ...

In mammals the heart is a double pump. The right side pumps deoxygenated blood to the lungs and the left side pumps oxygenated blood to the rest of the body tissues. This means that a red blood ...