August 30, 2010 |
The resting brain is anything but idle — that simple proposition would be clear if you could peer into Mike Mrazek's noggin as he putters around his kitchen preparing his daily morning feast of scrambled eggs, oatmeal and fresh fruit. As he plods through his quotidian ritual of gathering ingredients, cutting, chopping, bringing the pan to the correct temperature and boiling water for tea, Mrazek's thoughts, too, are something of a scrambled feast, as he later recounts. Childhood memories jostle against thoughts of his girlfriend's progress on a cross-country journey.
January 23, 2005 |
It has long been a matter of contention: Was the Aztec and Mayan practice of human sacrifice as widespread and horrifying as the history books say? Or did the Spanish conquerors overstate it to make the Indians look primitive? In recent years archeologists have uncovered mounting physical evidence that corroborates the Spanish accounts in substance, if not number.
January 17, 2004 |
An inmate who spent two decades on death row before DNA evidence exonerated him walked out of prison a free man, saying he just wanted to get home and be with his family. Nicholas Yarris is the first Pennsylvania death row inmate cleared by DNA testing. Yarris' 1983 conviction for rape and murder was overturned last summer when DNA tests proved that genetic material found on the victim belonged to someone else.
September 8, 2007 |
Alnylam Pharmaceuticals Inc. and Isis Pharmaceuticals Inc. have formed a venture uniting Nobel Prize winners David Baltimore and Phillip Sharp to create drugs from a newly discovered class of genetic material. The venture, Regulus Therapeutics, will have exclusive licenses from Alnylam and Isis for technology focused on so-called microRNAs. The molecules regulate networks of genes that may be involved in diseases including cancer, viral infections and metabolic disorders, the companies said.
June 1, 1999 |
Scientists in Hawaii have cloned a trio of identical mice using ordinary cells rather than DNA extracted from the female reproductive system. This time, the cloned critters were male. The clones grew using genetic material extracted from tail cells of adult male mice, but only one grew to adulthood, according to a study in the June issue of the journal Nature Genetics.
CALIFORNIA | LOCAL
September 21, 2013 |
Three decades ago, when so many of his friends were dying of AIDS, Stephen Crohn wondered why he - a gay man whose longtime companion had been one of the first to die from the disease--had managed to avoid it. Was it just a matter of time before he caught the human immunodeficiency virus that causes AIDS? Was there something wrong with the HIV antibody tests he took that always came back negative? Crohn, an artist and freelance editor, lived with the questions for 14 years before he finally learned the answer was in his genes.
December 11, 2004 |
Scientists have identified the cause of Werner syndrome, a rare accelerated aging disease whose sufferers prematurely develop gray hair, wrinkled skin, cataracts, cancer and heart disease, dying in their 40s. Researchers at the Salk Institute for Biological Studies in La Jolla reported in the journal Science that patients with Werner syndrome couldn't properly replicate the ends of their chromosomes due to a defective gene, WRN.
December 19, 2000 |
Scientists at Texas A&M University in College Station unveiled a disease-resistant black Angus bull, saying it could lead to safer beef and more efficient ranching worldwide. The month-old calf, called Bull 86 Squared, was cloned from genetic material frozen 15 years ago from Bull 86.