The parents of a young girl diagnosed with leukemia hope she will be cured by an injection that replaces the diseased cells in her body. The treatment was developed through the research of stem cells. These cells are undifferentiated, meaning they have not yet become a specific type of cell, such as a blood or nerve cell. Although the potential for stem cells remains unknown, scientists hope that further stem cell research will lead to cures of diabetes, Alzheimers disease, Parkinsons disease, and more. The search for cures has met resistance as the ethical debate over the use of stem cells continues.
Don Nardo (born February 22, 1947) is an American historian, composer, and writer. With close to four hundred and fifty published books, he is one of the most prolific authors in the United States, and one of the country's foremost writers of historical works for children and teens.