5,519 results
- Life
Fast test reveals drug-resistant bacteria
A new test uses time-lapse photography to see within a few hours whether individual bacterial cells are vulnerable to antibiotics.
- Oceans
3.5 billion years ago, oceans were cool, not hot
Extensive new evidence from South Africa suggests that 3.5 billion years ago, Earth was locked in a cold spell, with isolated blasts of hydrothermal heat that may have helped incubate life.
- Health & Medicine
How farm life can prevent allergies
Farm dust prevents allergies by turning on an anti-inflammatory enzyme in the cells lining mice’s lungs.
- Microbes
Gut microbes signal when dinner is done
Helpful E. coli bacteria that live in the guts of animals produce proteins that can decrease an animal’s appetite only 20 minutes after receiving nutrients
- Health & Medicine
Nobel medicine prize won for drugs from natural sources
Nobel Prizes in medicine or physiology awarded for drugs that combat roundworms and malaria
- Life
Typical American diet can damage immune system
The typical American diet sends our good and bad gut microbes out of balance and can lead to inflammation and a host of problems.
- Genetics
Scientists find new way to corral genetically engineered bacteria
Engineering E. coli to depend on human-made molecules may keep genetically modified bacteria from escaping into nature.
- Science & Society
White House unveils strategy against antibiotic resistance
The Obama Administration has launched a long-term plan to curb antibiotic resistance, unveiling incentives and requirements designed to boost surveillance and diagnosis of resistant microbes.
- Life
Bacteria’s bodies do whirlies to help them swim
Kidney-shaped Caulobacter crescentus bacteria swim with both their corkscrew propellers called flagella and their bodies, scientists say.
- Health & Medicine
Additives that keep foods fresh may sour in the gut
Additives called emulsifiers that are used in ice cream and other foods weaken the intestines’ defenses against bacteria, causing inflammation in mice.
- Genetics
DNA editing shows success in mosquito sterilization
A new gene drive that sterilizes females could reduce numbers of malaria mosquitoes
- Materials Science
Suds turn silver nanoparticles in clothes into duds
Bleach-containing detergents destroy antibacterial silver nanoparticles that coat clothes.
