A watershed in biochemistry--Melvin Calvin's scientific paper detailing the complete biochemical pathway through which plants convert carbon dioxide from the atmosphere into carbohydrates--was published 37 years ago, in the 16 March 1962 issue of Science.
The virus that causes herpes may someday bring relief, rather than misery. In the current Proceedings of the National Academy of Sciences, biologists show that the herpes virus can shuttle human antipain genes into nerve cells in mice, increasing their tolerance for pain.
Scientists have discovered how a protein called angiostatin may put the brakes on tumor growth in mice. Their findings, published in today's Proceedings of the National Academy of Sciences, could lead to a new class of cancer drugs.
As molecular workers of the cell, proteins often do business with a handshake, temporarily grasping other molecules to pass on signals that order cells to grow or multiply. Now researchers have devised a new strategy to tighten or loosen the proteins' grip.
Neurobiologists have sniffed out how the nose uses relatively few kinds of molecular sensors to discriminate among thousands of odors. As reported in today's Cell, different smells activate unique suites of these sensors.
For the 15.7 million Americans with type 2 diabetes, good health means daily vigilance. To head off the eye, kidney, and heart damage the disease can cause, sufferers must follow strict diet and exercise regimes to prevent their blood sugar levels from soaring.
Scientists have tripled the iron content of rice by inserting a soybean gene into the plant's DNA. The achievement, reported in the March issue of Nature Biotechnology, could help alleviate anemia in the estimated 1.3 billion people who don't get enough iron to stay healthy.
On 28 February in 1865, Austrian monk Gregor Johann Mendel presented seminal results of his plant-breeding experiments at a meeting of the National Sciences Society in Brno, Czechoslovakia. Although Mendel's work passed unnoticed for decades, it became the basis for the science of genetics.
A virtually intact retrovirus has been found trapped in the human genome. The virus sports a full complement of genes, but a key mutation probably prevents it from infecting the rest of the genome or other cells.
Talks in Colombia to hammer out an international agreement controlling trade of bioengineered organisms broke down earlier this week, putting the protocol on hold with a goal of reaching an agreement by May 2000.
Scientists have discovered a mouselike Australian marsupial that, early in life, breathes through its skin instead of its lungs. The finding, which appears in tomorrow's Nature, has surprised zoologists, who thought that mammalian skin didn't allow respiration.
CAMBRIDGE, U.K.--Fed up with the ongoing media feeding frenzy surrounding genetically modified food, 19 of Britain's most eminent scientists, all Fellows of the Royal Society, are calling for a time-out.
Scientists have found two proteins on the tongue that appear to help us taste the difference between bitter or sweet. The findings, reported in the latest issue of Cell, may lead to potent artificial flavors or to compounds that mask unpleasant tastes.
Biomedical and scientific groups have begun an intense lobbying effort to persuade Congress to resist a conservative campaign aimed at blocking federal support for human stem cell research. Both sides are expected to clash on Capitol Hill in coming weeks.
Loud noises can cause a strange type of vertigo through an abnormal hole within the skull, scientists have found. A study of almost 1000 skulls, reported today at the Association for Research in Otolaryngology meeting in St.
The controversy in Britain over genetically modified food reached a new high today, after 21 European and American scientists released a memorandum supporting a scientist who was suspended last year for sounding a premature alarm about the health threat of genetically altered potatoes.
Malignant tumors in transplant patients are usually blamed on an immune system weakened by drugs. But a study in tomorrow's issue of Nature shows that the drugs may play a more direct role: A common immune suppressant can stimulate tumor cells to divide and spread.
Scientists have created a strain of mice with ovaries that essentially remain young until the animals die. The success, reported in this month's Nature Genetics, might someday lead to new ways to prevent health problems associated with menopause.
A thinning ozone layer may ultimately send maverick DNA segments called transposons jumping throughout the genome of corn plants, according to a report in today's Nature. These nomads could lead to a flood of mutations, the author says.
For millions of years, our genomes have been collecting mutations at an alarming rate, researchers write in today's issue of Nature. That begs an intriguing riddle: If our DNA is so prone to mistakes, why we are alive at all?