Cells, which employ a process called autophagy to clean up and reuse protein debris leftover from biological processes, were the original recyclers. A team of scientists from Paul Greengard's…
Despite penicillin and the dozens of antibiotics that followed it, streptococcus bacteria have remained a major threat to health throughout the world. The reason: the superb evolutionary…
Dendritic cells, known to be the prime movers of the body's immune response, are still notoriously difficult to study in humans. Samples, which come primarily from bone marrow or lymphoid…
Our cells live ever on the verge of suicide, requiring the close attention of a team of molecules to prevent the cells from pulling the trigger. This self-destructive tendency can be…
Stem cells, the prodigious precursors of all the tissues in our body, can make almost anything, given the right circumstances. Including, unfortunately, cancer. Now research from Rockefeller…
In Alzheimer's disease, the problem is beta-amyloid, a protein that accumulates in the brain and causes nerve cells to weaken and die. Drugs designed to eliminate plaques made of beta-amyloid…
In the battle between insect predators and their prey, chemical signals called kairomones serve as an early-warning system. Pervasively emitted by the predators, the compounds are detected…
An international team of researchers has used high resolution genome sequencing to track a particularly virulent strain of MRSA as it travelled between South America, Europe and Southeast…
When mother and daughter cells are created each time a cell divides, they are not exactly alike. They have the same set of genes, but differ in the way they regulate them. New research…
You can learn a lot from an animal. By manipulating the DNA of mice, flies, frogs and worms, scientists have discovered a great deal about the genes and molecules behind many of life's…