“Typically, the smaller you make something, the less likely it is to be detected by the immune system as a foreign object,” says Solzbacher, who wasn’t involved in the Brown study.
“The cells are suspended within this gel scaffold, and, over time, they grow and develop to fill out the scaffold volume and also transform into the cell types we’re interested in,” Beckwith says.
An infectious disease physician and researcher at Mount Sinai Hospital, Bouvier studies respiratory viruses, influenza A in particular.In fact, in their latest study, aerosolized fomites appeared to be the primary way their guinea pigs passed around the flu.
“That does matter if fish and other animals are doing that, too, because we only eat their muscle tissue,” she says, because the plastic could be moving through the lining of their guts and concentrating in those edible bits.
Photo © Lisa Ballard A new paper published in the journal PLoS ONE finds household bleach can deactivate Chronic Wasting Disease prions.
Most work on 3D bio-printing is done in culture dishes, but this experiment was unique in that the team was able to do this in laboratory rats, and because the lab-grown cells then successfully bridged the gap of a cut spinal cord and partially restored movement to the animal's hind quarters.
Instead, the cells of the damaged tissue turn the clock back all the way to a more fetal state, tapping into the proliferative power that once characterized development — and a program thought to have long gone silent.Atom Bombs and Self-Renewing CellsIn the early 1900s, scientists theorized that the specific blood cell types they’d learned to distinguish from one another under a microscope — red blood cells, white blood cells and platelets — came from a common, more primitive source: a stem cell.
Sequencing technologies, for one, can reveal how cells with the same exact DNA turn their genes on or off in unique ways—and these methods are beginning to reveal that the brain is a more diverse forest of bristling nodes and branching energies than even Ramón y Cajal could have imagined.On Monday, an international team of researchers introduced the world to a new kind of neuron, which, at this point, is believed to exist only in the human brain.