But because PPMP seems to choke off the parasites' supply lines slowly, the cells might be able to adapt to find alternative routes of supply. The team also found that when the tubes are working normally, they filter out some drugs but allow some compounds through that might kill the parasite. Their next efforts will be aimed at identifying those substances and improving mechanisms for quickly delivering them to the malaria invaders before they have time to respond or spread. Tens of thousands of Americans, many of them in the military, were given nasal radium treatments years ago, a treatment that may increase their risk of developing cancer and other medical problems today. One scientist's quest to bring this to light has finally led to government promises to investigate and help those affected.
Anxiety disorders can wreak havoc with family life, but help is available.
Molecular biologists at the University of Colorado have developed the first map of human chromosome 18, including genes associated with several forms of cancer. There's new evidence about the harm of second-hand smoke. In the near future, stitches for most wounds could be a thing of the past. Doctors find an adhesive closes wounds more quickly and helps them heal as well. Researchers identify a defect in heart cells that may explain why the muscle loses its ability to pump blood in people suffering from hypertension and perhaps other types of heart failure.