Certain types of anti-depressants have been linked to an increase in the risk of Clostridium difficile infection (CDI) finds a study in BioMed Central's open access journal BMC Medicine. Awareness of this link should improve identification and early treatment of CDI.
Certain types of anti-dep... Read More
Back when the Time Lord and I were still engaged, we went shopping for wedding rings. He only had one criteria: he wanted his ring to be made of platinum or a similar material forged in a supernova. It’s not quite as exotic as it sounds: most heavy elements were formed in supernovae, via a proce... Read More
Face masks help prevent people from getting the flu. But how much protection do they provide?
You might think the answer to this question would be well established. It’s not.
In fact, there is considerable uncertainty over how well face masks guard against influenza when people use them ou... Read More
DNA preserved in calcified bacteria on the teeth of ancient human skeletons has shed light on the health consequences of the evolving diet and behaviour from the Stone Age to the modern day.
The ancient genetic record reveals the negative changes in oral bacteria brought about by the dietary ... Read More
Scientists have revealed how a bacterial enzyme has evolved an energy-efficient method to move long distances along DNA. The findings, published in Science, present further insight into the coupling of chemical and mechanical energy by a class of enzymes called helicases, a widely-distributed gr... Read More
Here is a transcript of TWiM episode #49, "Grape-like clusters". Thanks to Frank Shinneman for transcription.
Antimicrobial peptides (AMPs) are part of the innate immune system that is widely distributed in nature, acting as a defense mechanism against invading microorganisms. AMPs have potent antimicrobial activity against a range of microorganisms including fungi, bacteria and viruses. In view of grow... Read More
The swine flu virus that caused a 2009 pandemic has been found in elephant seals off the central California coast, according to new research. The study, published in the journal PLoS ONE, is the first report of the virus H1N1 in any marine mammal. Researchers are now being advised to wear protec... Read More
Few people check into a hospital expecting to come down with a severe case of diarrhea while undergoing care for an entirely unrelated problem. And even fewer expect to die of the hospital-acquired intestinal infection that causes the watery stools. Yet for approximately 14,000 Americans each ye... Read More
Radioactive iron may be first fossil imprint of a nearby cosmic explosion. Sediment in a deep-sea core may hold radioactive iron spewed by a distant supernova 2.2 million years ago and preserved in the fossilized remains of iron-loving bacteria. If confirmed, the iron traces would be the first b... Read More
A newly discovered rodent virus that resembles hepatitis C could give research chimps a break.
The US National Institutes of Health (NIH) is expected to make a decision imminently on how many of its 360 research chimps should be retired on the grounds that most studies can be done in other an... Read More
Scientists have long believed that measuring the amount of HIV in a person’s blood is an indicator of whether the virus is actively reproducing.
A University of Delaware-led research team reports new evidence that hidden virus replication may be occurring within the body’s tissue, despite un... Read More
In the mid-19th century, if you had wanted to have a scientific fight, you could have picked no better subject than palaeontology. Fossils pouring out of the mines, quarries and railway cuttings of the industrial revolution were undermining the biblical accounts of creation and early history, th... Read More
Sandia National Laboratories is developing a suite of complementary technologies to help the emerging algae industry detect and quickly recover from algal pond crashes, an obstacle to large-scale algae cultivation for future biofuels. The research, which focuses on monitoring and diagnosing alga... Read More
Researchers from the University of Tübingen have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known deposits -- in South Africa and Australia -- are geological formations billions of years old. They are... Read More
Hilary Koprowski flanked by Vincent Racaniello and Richard Kessin on the occasion of Dr. Koprowski's 'History of Science' lecture at Columbia University College of Physicians & Surgeons, April 2005. Read More
The proportion of young women diagnosed with genital warts in Australia has seen a significant decline thanks to the HPV vaccine, suggests a new paper. In 2007, Australia became one of the first countries to implement a nationally funded quadrivalent human papillomarivus (HPV) vaccination progra... Read More
One of the big mysteries of AIDS is why some HIV-positive people take more than a decade to progress to full-blown AIDS, if they progress at all. A group of investigators from the Multi-Center AIDS Cohort Study (MACS), housed within the UCLA AIDS Institute, may have uncovered the key to this var... Read More