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.
July 27, 2012 |
The Berlin Patient, the only person considered cured of HIV, may soon have some company. Researchers at the International AIDS Conference in Washington, D.C., made presentations Thursday on two HIV-positive men from Boston who developed lymphoma. In both cases, their treatment included a bone marrow transplant, which results in a new immune system. The bone marrow donors did not have HIV. The patients were conditioned for their transplants with a reduced-intensity protocol that allowed them to maintain enough strength to continue taking antiretroviral drugs to keep their HIV in check.
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.
July 2, 2001 |
The conventional idea that most living organisms require two parents has been challenged by Dutch and Czech researchers, who have found a species that has only mothers. They report in the June 29 Science that a species of tropical mite (Brevipalpus phoenicius) consists entirely of females with only one set of genetic material. Most animals have two sets, one from each parent. The male of the mite species is all but nonexistent.
March 30, 2002 |
French researchers reported today that they had succeeded in cloning rabbits using genetic material from adult cells. The animal joins sheep, cattle, goats, mice, pigs and cats in the select but rapidly growing fraternity of cloned organisms. The four cloned female rabbits were born last year at the National Institute for Agronomical Research outside Paris.