WASHINGTON, D.C.--The cloning of an adult sheep by Scottish biologists was on every legislator's mind when Harold Varmus, director of the National Institutes of Health (NIH), appeared to defend his budget request on Capitol Hill today.
People with cystic fibrosis are prone to killer lung infections. But scientists have been puzzled over how the genetic defect underlying the disease--a mutated gene that leads to poor transport of chloride into and out of cells--promotes these infections.
Several heavy wooden spears unearthed in northern Germany provide the first concrete evidence that early humans in Europe were active hunters of large animals and offer a window into the lives of Europeans about 400,000 years ago.
When a team of biochemists spliced a bacterium's gene for making hemoglobin into a tobacco plant, they expected the transgenic plant to be a tad hardier. Instead, they got veritable beanstalks: plants twice as large and bursting with much more chlorophyll and nicotine than ordinary tobacco.
PHILADELPHIA--Last year, David Berd, an oncologist at Thomas Jefferson University here, found that melanoma patients given an injection of altered versions of their own tumor cells after surgery were nearly twice as likely to remain tumor-free as were patients given
A new study suggests that people living near the Three Mile Island nuclear power plant in 1979, when it released radioactive gas into the air, may have suffered from a higher rate of some cancers in the first several years after the accident.
Creating a whole new organism from a single cell has been more the stuff of science fiction than of science. Not anymore. Scientists have cloned a lamb using a cell nucleus taken from an adult ewe's udder, according to a report scheduled to appear later this week in Nature.
For weeks, tantalizing rumors have been leaking out of the Deutsches Elektronen-Synchrotron (DESY) in Hamburg, Germany. This week, at a DESY seminar, researchers lifted the curtain on what they've been seeing.
SEATTLE--Astronomers studying bursts of x-rays from spinning neutron stars may have seen one of these superdense objects brake and accelerate like a spinning figure skater, all in the space of a few seconds.
Many people think that the catastrophe that killed off the dinosaurs 65 million years ago--probably a giant asteroid--also took out most archaic birds and mammals, too. If so, modern birds evolved only later, from the survivors.
WASHINGTON--Nobel laureate Daniel Carleton Gajdusek pleaded guilty to two counts of child abuse yesterday. Gajdusek, 73, who is currently free on $350,000 bail, is expected to serve a jail term of between 9 months and 1 year and be on probation for 5 years.
SEATTLE--Some people who have a particular form of a gene that, when mutated, causes Werner's syndrome--a rare disorder characterized by rapid aging in youth--appear to have a relatively low risk of suffering a heart attack.
LONDON--An alliance of researchers and lobbyists this week filed two objections to a European patent granted to a U.S. company for the extraction and use of blood stem cells from human umbilical cords.