6,170 results
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Killer yeast win epic battle of toxins
Researchers have discovered the molecular mechanism that keeps a yeast cell programed by a virus to spew a toxin that kills neighboring yeast cells from killing itself.
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From the September 26, 1931, issue
FLASH WELDING JOINS METAL AMID SHOWER OF SPARKS A brilliant shower of sparks for a few seconds, and two pieces of steel have become one, with a union as strong as the original metal itself. The picture on the front cover from the Pittsfield, Mass., works of the General Electric Company illustrates a recent adaptation […]
- Health & Medicine
Slowing lupus: Stifled inflammation limits kidney damage
A new therapy for the autoimmune disease lupus works in mice by thwarting activation of immune-system proteins called complement.
- Health & Medicine
Germ-Fighting Germs
Plants and animals arent the only things that get sick. Even pathogenic microbes can succumb to infections. Federal plant pathologists are now looking to capitalize on that phenomenon as a strategy to fight off food poisoning. R. Savidge Though nature seals most fruits and vegetables in germ-resistant peels and rinds, once those outer barriers are […]
- Health & Medicine
Poliovirus slaughters brain tumors in mice
Scientists have altered a live polio virus, inducing it to target and kill brain tumor cells without causing polio.
- Health & Medicine
Ominous drug-resistance hints appear
The first signs of partial resistance to an important class of drugs called quinolones have appeared in Haemophilus influenzae, a bacterium that can cause pneumonia and meningitis.
- Health & Medicine
Drugs tested for Lou Gehrig’s disease
Two drugs, one for cancer and one for arthritis, may be effective treatments for amyotrophic lateral sclerosis.
- Health & Medicine
HIV-related viruses still cross species line
Various potentially dangerous strains of simian immunodeficiency virus exist in wild primates in Africa and are still being spread among people who hunt the animals for meat.
- Health & Medicine
Vaccine Power: Immune cells target cancerous tissue
Researchers are enlisting a person's own immune system to attack prostate tissue, including cancerous cells.
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The Meaning of Life
Computers are unscrambling genomes to reveal the secrets in DNA codes.
- Earth
Transgenes migrate into old races of maize
Genes from bioengineered corn have somehow strayed into the traditional varieties of southern Mexico.
- Chemistry
The True Sweet Science
New techniques and tools are helping scientists elucidate the roles that complex sugars play in the human body and in drug manufacturing.
