December 16, 1988 |
Researchers at UC San Diego using a gene replacement technique have taken a major step toward the development of a new form of cancer therapy. A team headed by molecular biologist Wen-Hwa Lee has for the first time converted cancer cells grown in a laboratory into healthy cells by replacing a defective gene with a normal gene.
January 14, 1998 |
Breaking a biological barrier once thought out of reach, scientists for the first time have apparently endowed healthy human cells growing in a dish with a quality that alchemists, explorers and mystics have vainly sought for ages: immortality. In the new research, due to be published Friday in the journal Science, the scientists genetically altered cells, enabling them to keep dividing long past their allotted life span.
May 27, 2005
Re "House Defies the President on Stem Cells," May 25: When the president on Tuesday welcomed 21 families to the White House, all with children from embryos donated by other couples, I couldn't help but see there were some people missing: those with spinal cord injuries, cancer patients and the rest who could benefit from more extensive stem cell research. Is George Bush afraid he might catch some truth? Jim Geezil Agua Dulce Embryos apparently need to be saved by George Bush and House Majority Leader Tom DeLay in order to protect the "cycle of life."
April 14, 2011 |
Workers at the Fukushima Daiichi nuclear power plant in Japan should have their blood stem cells collected and stored in case the workers are exposed to excess radiation and require medical treatment during the shutdown and cleanup necessitated by the magnitude 9 Tohoku earthquake and the tsunami that followed it, Japanese physicians said Thursday. Bone marrow transplants are a common treatment method for such exposures, but they can be time-consuming when a search has to be made for matching donors and the recipients then have to take immunosuppressive drugs for the rest of their lives.
October 14, 1997 |
Cell Genesys Inc. researchers completed successful laboratory tests of a new method for combating the AIDS virus, the company announced. A team of scientists found that immune system cells, which had been genetically programmed to seek and destroy HIV-infected cells, did the job as well as naturally occurring cells that hunt down virus-tainted cells.
August 23, 1992 |
The Jordanian royal palace announced that "abnormal" cells were found in sections of King Hussein's urinary tract removed during surgery at the Mayo Clinic in Rochester, Minn., last week. It did not say whether the cells were malignant. But it said that the biopsy persuaded surgeons to remove Hussein's left kidney as well.
CALIFORNIA | LOCAL
November 5, 1990 |
Researchers at UC San Francisco have shown that a tiny population of cells in the brain, perhaps as few as 1,500, establish the basic rhythm of the reproductive cycle in humans. Researchers seeking to improve human fertility or birth control should thus focus on these cells, physiologist Richard I. Weiner said last week at a meeting of the Society for Neuroscience in St. Louis. The cells are called GnRH-secreting neurons because they regularly produce gonadotropin-releasing hormone.
April 27, 2001 |
Offering new hope for diabetics, scientists on Thursday reported the latest marvel from stem cell research: mouse embryo cells that can develop into the insulin-producing portion of the pancreas. The report from researchers at the National Institutes of Health appears today in the journal Science and raises the remarkable prospect that scientists may someday be able to grow human organs in a lab that can be transplanted into patients.
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.
November 19, 2008 |
Doctors have given a woman a new windpipe with tissue grown from her own bone marrow's stem cells, eliminating the need for anti-rejection drugs. The case of tuberculosis patient Claudia Castillo, a 30-year-old Colombian living in Barcelona, was published online today in the medical journal the Lancet. Scientists and doctors in Italy and Britain stripped the cells off a donor windpipe, leaving only a tube of connective tissue, and produced millions of cartilage and tissue cells from Castillo's marrow to cover it. Once they were in place, the trachea was transplanted into Castillo in June.