A study published in the March 7 edition of Cell Stem Cell reveals that transplanting human brain cells into mice can make mice smarter. Researchers implanted human glial progenitor cells into the brains of newborn mice. In addition to revealing how cell transplants may assist in treatment of neurological ailment in humans, the study determined that mice with human astrocytes fared better on a set of tests assessing learning and memory skills. Click here to read more.