Word: geneses
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Cancer researchers aren't accustomed to breakthroughs, but three years ago, they thought they had scored a big one. That's when scientists revealed they had found and begun mapping the first of two genes that appeared to be behind most cases of inherited breast cancer. Suddenly it seemed possible...
In some cases that may have been premature. In papers published last week in the New England Journal of Medicine, investigators took a good look at the suspect genes and found them less guilty than originally charged. Women with positive screenings suddenly had cause to wonder whether the test result...
Researchers spotted the two mutated cancer genes--BRCA1 and BRCA2--in 1994 and '95 and immediately realized they were dealing with a nasty pair of characters. Women with just one BRCA gene mutation appeared to have an 85% risk of developing breast cancer and a 60% risk of ovarian cancer...
Things get murkier when researchers look at the BRCA mutations. Hundreds of base pairs may be strung along genes like Christmas-tree lights, but not every blown bulb affects the strand the same way. More than 200 mutations have been identified on the two BRCA genes, and one new study...
CHICAGO: Scientists have located the gene that governs the body's inner clock -- at least in mice. Resarchers, according to the journal Cell, believe that the discovery of the so-called "clock gene" in laboratory mice, with its 100,000 bits of information on sleep patterns, mood swings and hormone...