The rats without transplants didn’t recover: They had many complications learning their method through the mazes. After learning behavior, the scientists examined what occurred in the brain. Under the microscope, it appeared that the transplanted cells had settled in a sub-region of the hippocampus called the dentate gyrus mainly. There, the transplants seemed to promote the secretion of two types of development factors, namely brain-derived neurotrophic factor and fibroblast development factor, which boost the survival and growth of the cells that give rise to neurons. In the hippocampi of rats with cell transplants, the expression of brain-derived growth factor went up threefold.The experience of Dr. James Adovasio, director of the Mercyhurst Archaeological Institute, is presented in a chapter on mass graves and using spatial evaluation in resolving commingling problems.
CDC director: Ebola is usually ‘spiraling out of control’ Dr. Thomas Frieden, director of the U.S. Centers for Disease Avoidance and Control, says the Ebola epidemic is certainly ‘spiraling out of control’ and will probably get worse. Frieden has came back from West Africa just, where he toured areas affected by the outbreak. Speaking on Tuesday with ‘CBS TODAY’ from CDC’s Atlanta headquarters, Frieden said it’s crucial now more than ever to help the countries where Ebola has taken hold. ‘There continues to be a window of opportunity to tamp it down, but that windows is closing.