Heart attack patients received lifesaving treatment quickly when hospitals and communities used an integrated, rapid transfer system to get patients to a facility equipped to perform artery-opening procedures, according to a report in Circulation: Journal of the American Heart Association.
Scientists have discovered that at the same time the immune system is vigorously attacking invading viruses or bacteria, it is unexpectedly reducing its production of a particular type of factor that directs the movement of immune cells.
Working with human colorectal cancer cells, a University of Minnesota team, led by cancer biologists Zigang Dong and Ann Bode, has found the potential culprit among a network of enzymes that relay signals inside cells to regulate such functions as cell growth, cancer development and programmed cell death.
One way regular brushing may help keep gums firm and pink is, paradoxically, by tearing open cells, researchers have found.
When quizzed about their knowledge in diagnosing tuberculosis and deciding on the best treatment, medical residents in Baltimore and Philadelphia get almost half the answers wrong, according to a survey by TB disease experts at Johns Hopkins and elsewhere.
Twelve native Australian fruits that are exceptional sources of antioxidants have been identified in research published in the journal Innovative Food Science & Emerging Technologies.
Can a genetic signature identify the origin of a human stem cell line? Scientists report that a widely available method for comprehensive genetic analysis can help distinguish the type of human embryo that stem cells come from.
Ionizing radiation, toxic chemicals, and other agents continually damage the body’s DNA, threatening life and health: unrepaired DNA can lead to mutations, which in turn can lead to diseases like cancer. Intricate DNA repair mechanisms in the cells’ nuclei are constantly working to fix what’s broken, but whether the repair work happens “on the road” ? right where the damage occurs ? or “in the shop” ? at specific regions of the nucleus ? is an unanswered question.
A new fingerprinting technique could potentially detect the diet, race and sex of a suspected criminal, according to new research published in the August edition of the journal Analytical Chemistry.
Asthma affects 300 million people worldwide and, according to World Health Organization, it killed 255 000 people in 2005. Asthma attacks are caused by an acute inflammatory reaction in the airways, a reaction that is largely due to actions of LTC4 synthase (an enzyme which catalyzes a synthesis process). For this reason asthma medicines often aim to block the downstream effects of LTC4 synthase.