An airplane pilot’s experience is a better indication of crash risk than his or her age, Johns Hopkins researchers say. They found in a study of 3,306 commuter plane pilots that those with more than 5,000 hours of flight experience had less than half the risk of a crash than less experienced counterparts. Results are published in the May 15 issue of the American Journal of Epidemiology.
New work by researchers in the Kimmel Cancer Center at Johns Hopkins may allow them to halt the smoking-induced cellular events that lead to 99 percent of all small cell lung cancers (SCLC). The research is reported in the March 5, 2003, issue of Nature. The researchers found that a primitive cellular pathway, called Sonic Hedgehog (named for the cartoon character and spiky hairs it develops on fruit flies) stays turned on long after it should be turned off in some lung cancers.
Researchers have discovered a gene mutation that causes a condition apparently identical to Huntington’s Disease, helping explain why some people with the disorder do not have a separate mutation found in most cases. The finding may help reveal why some diseases, like Huntington’s, Alzheimer’s and Parkinson’s, destroy some brain cells while sparing others. “For all practical purposes this is Huntington’s Disease, yet it’s caused by a different mutation on a completely different chromosome,” said Russell L. Margolis, M.D., associate professor of Psychiatry at Hopkins and director of the Johns Hopkins Laboratory of Genetic Neurobiology. “This is a rare version of an already rare disorder, but the mutation that causes it may not only help us better understand Huntington’s Disease, but could boost our understanding of many other neurodegenerative disorders.”