Skin doctors have special praise for Accutane, a derivative of vitamin A. Taken orally; it helps almost miraculously to dry up the great red sores of cystic acne. Dr. Alan Shalita, dermatology professor at the State University of New York Downstate Medical School in Brooklyn, says that, thanks to Accutane, “there is little reason for [...]

There are about one million working units called nephrons in each kidney. Each nephron consists of a tuft of capillaries known as the glomerulus attached to a long winding tubule that empties into collecting tubules. The glomerulus filters the blood that circulates through it. Water together with glucose, amino acids, urea, sodium chloride, and other [...]