CALIFORNIA | LOCAL
May 22, 1989 |
Scientists have linked two eye diseases to genetic defects in the powerhouses of cells, providing further evidence that damage to such genetic material may cause a variety of illnesses. Emory University researchers in Atlanta reported that they had confirmed that a previously identified flaw in the mitochondrial DNA of cells is to blame for Leber's hereditary optic neuropathy, a rare inherited disease that causes blindness. In the same issue of the New England Journal of Medicine, another scientific team last week linked damage to the same kind of genetic material to a disorder called progressive external ophthalmoplegia, which weakens eye muscles.
January 22, 2002
Re "Beefy Biotech Wonder Saved From Slaughter," Jan. 17: Herman, the genetically engineered bull, has been saved from the slaughterhouse. Herman is reportedly the first bull to carry a human gene, so he's special. But one day this may become routine. As the slaughterhouse doors swing open for unwanted transgenic livestock, we are faced with difficult questions. Should canned meat containing human genetic material be so labeled? Yes, so cannibals will know which brand to buy. No, because there are no religious proscriptions against eating transhuman foods.
August 19, 1987
Modern techniques of genetic engineering are "powerful and safe" and no more dangerous than selective breeding techniques used for thousands of years, said a report from the council of the National Academy of Sciences. A recombinant DNA modified organism "is like a breeder's new variety of flower," said the report by a committee of five experts.
May 13, 2002 |
British scientists have mapped the genetic material of a common soil bacterium in an achievement that could combat the growing problem of "super-bugs"--bacteria resistant to the most powerful antibiotics. The bacterium, Streptomyces coelicolor, and its relatives already produce two-thirds of natural antibiotics such as tetracycline and erythromycin.
February 6, 1992 |
Scientists have discovered a genetic abnormality that apparently causes the most common adult form of muscular dystrophy, a discovery that could help research into developing a treatment. The finding also should allow better diagnosis of the inherited condition, called myotonic dystrophy, prenatally or before symptoms appear in later life, experts said. Early diagnosis is important because symptoms may not appear until after a person has had children, unwittingly passing along the flawed gene.
CALIFORNIA | LOCAL
March 18, 1991 |
A genetic accident in a single mosquito apparently led to the ability of some mosquitoes around the world to resist a class of insecticides, French researchers reported last week in the journal Nature. The finding may have important implications for programs that use insecticides to control mosquitoes that spread disease. The study investigated why mosquitoes called Culex pipiens can often resist organophosphate insecticides.