Using state-of-the art microscopy, scientists have peered inside cardiac cells while they beat, revealing tube-like structures that buckle and then snap back into shape, much like shock absorbers. The details now appear in Science.
For the first time ever, molecular biologists have filmed the death of a human white blood cell. But the video shows something else, too. These integral components of our immune system do not go quietly into that good night. Rather, they go down alerting their neighbors to the presence of potential pathogens.
For the first time ever, researchers in New Zealand have shown that mitochondrial DNA can move between cells in an animal tumor. It's an extraordinary finding that could lead to an entirely new field of synthetic biology and the treatment of hundreds of diseases.
Researchers at Berkeley have orchestrated the flow of cell groups by using electrical currents. It's a tissue engineering breakthrough that could eventually lead to "smart bandages" that use electricity to guide cells during the wound healing process.
The 2013 Nobel Prize in Physiology or Medicine has been awarded to James E. Rothman, Randy W. Schekman and Thomas C. Südhof "for their discoveries of machinery regulating vesicle traffic, a major transport system in our cells".
A new five-year pilot study has shown that lifestyle changes, like an improved diet, exercise, and stress management, may help reverse aging processes at the cellular level. But as exciting as this finding is, we’re still far from the proverbial fountain of youth.
No, this isn't something out of an Octavia Butler novel. It’s Tetrahymena thermophila — a single-celled organism that goes way beyond male and female. It has seven different sexes to choose from. Now a new study published in PLOS has finally made sense of its bizarrely complex and seemingly random sex life.
Researchers at the Pasteur Institute in Paris have discovered that certain stem cells can stay alive in human corpses for at least 17 days after that person is declared dead. What were we saying the other day about the difficulty with defining death?
It's one of the biggest milestones for stem cells since their discovery. Researchers yesterday published the first results of a clinical trial where doctors transplanted of stem cells into the eyes of patients suffering from a form of progressive blindness. And the preliminary results look very good.
Researchers have known for some time that women who experience weakened heart function in the months before and after childbirth (a condition known as peripartum cardiomyopathy) recover more quickly than any other group of heart failure patients. Now, a team of researchers from Mt. Sinai School of Medicine thinks it…
Scientists have known for some time that dogfish sharks, like the one pictured up top, naturally produce a broad-spectrum antibiotic called squalamine in their livers. Now, new research into the cellular function of squalamine reveals how it also confers a broad-spectrum antiviral benefit for the shark — one we humans…
Injuries to parts of the nervous system — the spinal cord, for example — are among the most devastating that human beings can sustain. But the recent discovery of a new class of spinal cord cell could soon lead to novel therapies capable of regenerating parts of the central nervous system.