Life Science

As stem cells continue their gradual transition from the lab to the clinic, a research group at the University of Wisconsin-Madison has discovered a new way to make large concentrations of skeletal muscle cells and muscle progenitors from human stem cells.

Using a powerful data-crunching technique, Johns Hopkins researchers have sorted out how a protein keeps defective genetic material from gumming up the cellular works. The protein, Dom34, appears to “rescue” protein-making factories called ribosomes when they get stuck obeying defective genetic instructions, the researchers report in the Feb. 27 issue of Cell.

After a decade of debate, Brandeis University scientists have a clear picture of a controversial protein.

University of Texas Southwestern Medical Center researchers created new nerve cells in the brains and spinal cords of living mammals without the need for stem cell transplants to replenish lost cells.

One of science's strongest dogmas is that complex life on Earth could only evolve when oxygen levels in the atmosphere rose to close to modern levels. But now studies of a small sea sponge fished out of a Danish Fjord shows that complex life does not need high levels of oxygen in order to live and grow.

Racism as a social and scientific concept is reshaped and reborn periodically through the ages and according to a Penn State University anthropologist, both medical and scientific researchers need to be careful that the growth of genomics does not bring about another resurgence of scientific racism.















