Understanding the role of biomechanical forces during organ formation is the next big hurdle in getting stem cells to differentiate into the cells you want, says Harald Ott, of Massachusetts General Hospital in Boston, who is working on creating tissue - engineered limbs. (newscientist.com)
If an animal survives a traumatic incident such as being hit by a car or falling, the next big hurdle is surviving the damage done to the kidneys when the animal went into shock. (professorshouse.com)