Word: cellular
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Free radicals are cellular renegades; they wreak havoc by damaging DNA, altering biochemical compounds, corroding cell membranes and killing cells outright. Such molecular mayhem, scientists increasingly believe, plays a major role in the development of ailments like cancer, heart or lung disease and cataracts. Many researchers are convinced that the cumulative effects of free radicals also underlie the gradual deterioration that is the hallmark of aging in all individuals, healthy as well as sick. Antioxidants, studies suggest, might help stem the damage by neutralizing free radicals. In effect they perform as cellular sheriffs, collaring the radicals and hauling them away...
Called personal communications networks, these systems operate much like cellular phones but are not intended for cars. Instead they are designed for pedestrian use and will consist of pocket phones so small they can be folded up like a wallet to the size of a pack of cigarettes. They can be smaller and less expensive than conventional cellular phones because they need to be powerful enough only to transmit to one of hundreds of receiving stations located throughout the local cable network. The user could thus bypass the local phone company, which makes the PCN system a threat...
...past two years alone, researchers have reported preliminary success with two separate therapies that for the first time treat the underlying cellular disorder as opposed to just the symptoms of the disease. More promising still, doctors are closing in on a technique for replacing the defective CF gene, which was discovered in 1989. The discovery has spawned an unprecedented proposal to screen tens of millions of Americans for the defect, so that couples can avoid having an affected child. After decades of relative quiet on the CF front, scientists have their eyes on the prize. "This is a wonderful place...
Initiation at Cellular Origins of DNA Replication--by Bruce Stillman, Cold Spring Harbor Laboratories, New York. Fairchild Biochemistry Building, 7 Divinity Ave., Lecture Hall, noon...
...Judah Folkman, Andrus professor of pediatric surgery and a professor of anatomy and cellular biology at the Medical School, a team of doctors discovered that basic fibroblast growth factor (bFGF) is present in the normal lining of the intestines and in ulcerated tissue. The team also found evidence that the growth factor may be critical in duodenal ulcer repair...