A technique to keep the tips of your chromosomes healthy could reverse tissue ageing. The work, which was done in mice, is yet more evidence of a causal link between chromosome length and age-related disease.
Telomeres, the caps of DNA which protect the ends of chromosomes, shorten every time... Read More
Moselio Schaechter of Small Things Considered has authored a post about the work of Maria Dominguez-Bello of the University of Puerto Rico who has been studying Opisthocomus hoazin, a unique bird who is known to carry out a pre-gastric (ruminal) fermentation. Dominguez-Bello has been investigati... Read More
President Obama on Wednesday ordered a vast review to ensure the ethical treatment of people who take part in research backed by the federal government.
His action is a response to the revelation this year that American scientists intentionally infected people at a Guatemalan mental hospital ... Read More
Britton Chance, a biophysicist who did pioneering research on how living organisms produce and manage energy and helped develop diagnostic tools, like one for the detection of breast cancer, died on Nov. 16 in Philadelphia.
Dr. Chance, who was also a world-class yachtsman and won an Olympic ... Read More
A leading medical group says there's some evidence that probiotics, or "good" bacteria, may have limited benefits for certain illnesses in children.
But the group says the science isn't yet strong enough to advocate infant formulas containing probiotics. And probiotics shouldn't be given to c... Read More
Many urinary tract infections (UTIs) can be cleared up with a big bottle of cranberry juice, but when these infections go bad, they can be really, really bad. Uropathogenic E. coli is the leading cause of uncomplicated UTIs, and if left untreated it can proceed right up the urinary tract to the... Read More
With flu season underway, flu shots are particularly important for very young children. A new study finds that vaccinations do help prevent babies from getting sick.
This study at Turku University in Turku, Finland, published Tuesday in the Lancet Infectious Diseases says the 2007-08 vaccine ... Read More
Scientists are racing to develop tests for a retrovirus called XMRV, which could be used to determine if the blood supply is tainted and to assess how many people may be infected.
The impetus behind the drive is a paper published in the journal Science last year that reported a link between X... Read More
It's the stuff of doomsday movies: A new virus jumps from animals to people, with ominous possibilities.
At the California National Primate Research Center at the University of California, Davis, last year, a newly identified form of virus devastated a monkey colony and sickened a researcher,... Read More
Imagine taking a midnight stroll, your route lit by row upon row of trees glowing a ghostly blue. If work by a team of undergraduates at the University of Cambridge pans out, bioluminescent trees could one day be giving our streets this dreamlike look. The students have taken the first step on t... Read More
Leaf-cutter ants, which use leaves to raise a fungal crop to support a colony of millions, seem to have discovered farming long before humans evolved. They may also have beaten us to natural pesticides by a comfortable margin.
Although it's not possible to assign a date to the ants' latter di... Read More
Superantigens, the toxins produced by staphylococcus bacteria, are more complex than previously believed, reveals a team of researchers from the University of Gothenburg in an article published November 28 in the scientific journal Nature Communications. Their discovery shows that the body's imm... Read More
On episode #109 of the podcast This Week in Virology, Vincent visits Mexico City and speaks with Rosa Maria del Angel and Ana Lorena Gutiérrez about virology in Mexico, and their work on dengue and ... Read More
HIV drugs given prophylactically can significantly reduce the risk of infection, a new clinical trial says. Those findings, announced Tuesday, have been the talk of the country for the past two days. Now comes the time to reflect on the findings.
Here's the original Los Angeles Times story "P... Read More
A suspected case of cholera has landed in Miami. The disease has killed some 2,000 people and put 30,000 others in hospitals in Haiti.
The Centers For Disease Control (CDC) confirms that a man fell ill with cholera-like symptoms Thanksgiving Day while on an American Airlines flight from Santo... Read More
Earlier this year, scientists at the J. Craig Venter Institute reported in the journal Science that they had designed and created a synthetic chromosome which they transplanted into a living cell. The living cell created new cells which are controlled only by the synthetic chromosome. The experi... Read More
Dr. W. Ian Lipkin was spending the afternoon prowling his empire of viruses. The Center for Infection and Immunity, which he directs, occupies three floors of the Mailman School of Public Health at Columbia University. Rather than wait for the elevator, Lipkin ran up and down the back stairs to ... Read More
Boston University researchers have developed a simple diagnostic tool that can quickly identify dangerous viruses like Ebola and Marburg. The biosensor, which is the size of a quarter and can detect viruses in a blood sample, could be used in developing nations, airports and other places where n... Read More
The quest to squeeze more and more data into ever smaller spaces continues, but current materials and techniques have their limits. One day in the not too distant future we will reach the limits of current hard drive technology.
So where do we look for the next storage breakthrough? If you as... Read More
Usually we hear about E. coli bacteria when there's an outbreak of food poisoning. But now a group of engineers have turned these disease-causing bugs into a "production platform" for antibiotics.
Genetic engineers have been trying for a while to tweak the genes of E. coli so that they'll pro... Read More