Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition, in many tissues they serve as a sort of internal repair system, dividing essentially without limit to replenish other cells as long as the person or animal is still alive. When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell. Stem cells are distinguished from other cell types by two important characteristics. First, they are unspecialized cells capable of renewing themselves through cell division, sometimes after long periods of inactivity.
ChitoGauze (Photograph courtesy of HemCon Medical Technologies, Inc.) HemCon Medical Technologies manufactures bandages and wound dressings that harness the power of the sea.
Last Updated: 3/21/2013 13:09 PST
By Ted Thornhill PUBLISHED: 10:04 GMT, 30 March 2012 | UPDATED: 15:31 GMT, 30 March 2012
U nder normal circumstances, the tau protein is a hard-working participant in memory and brain functioning. But in Alzheimer’s disease and other neurodegenerative diseases, tau not only ceases to play a productive role in brain health, but actually undergoes a Jekyll-and-Hyde transformation to become a misshapen villain that destroys brain cells. “Since Alzheimer’s disease takes at least a decade to develop, the major challenge to halt memory loss is to identify the initial period when the tau protein is transformed from ‘good guy’ to ‘bad guy,’” said co-senior author Kun Ping Lu (left), BIDMC investigator, who along with co-senior author Xiao Zhen Zhou, did the research.
The following is a "healthy food hot list" consisting of the 29 food that will give you the biggest nutritional bang for you caloric buck, as well as decrease your risk for deadly illnesses like cancer, diabetes and heart disease. Along with each description is a suggestion as to how to incorporate these power-foods into your diet. Fruits 01.
Eating 10 hot dogs in 6 minutes and belching the national anthem may impress your friends, but neither of those feats will do much for your body—at least not much good.
Who came up with the idea that we are supposed to drink orange juice at breakfast? And why, if oatmeal is so good for us, do we eat that only in the morning as well?