Some 29,270,000 Americans are afflicted with some form of heart or circulatory disease, the American Heart Association says, and heart attacks and stroke will claim 850,000 lives this year in the United States.President John T. Shepherd, MD, DSc, dean of the Mayo Medical School, Rochester, Minn, cites research advances of recent years but notes that "much more needs to be learned at the basic level."
David and Goliath
Leukocytes can kill trichomonads despite the parasites' larger size, a University of Virginia (Charlottesville) researcher reports.Michael Rein, MD, told the American Society of Clinical Investigation meeting in Washington, DC, that this may explain in part why some women combat trichomoniasis more effectively than others. "Secondly, and more far-reaching, is the concept that some organisms can kill others [that are] larger."Edward Hook, MD, chairman, Department of Internal Medicine, notes: "Very little information is available regarding mechanisms by which