The year 2012 was quite turbulent in Italian politics but it ended with a display of near unanimity. The reason was the posthumous homage to the oldest senator of the Republic and the oldest Nobel Prize winner, Rita Levi-Montalcini. In Italy, the President has the privilege of personally naming ... Read More
In trying to figure out what ethics ought to guide scientists in their activities, we’re really asking a question about what values scientists are committed to. Arguably, something that a scientist values may not be valued as much (if at all) by the average person in that scientist’s society.
... Read More
The US Office of Science and Technology Policy recently released proposed guidelines for maximizing the benefits and minimizing misuse of life sciences research. The measures establish oversight responsibilities for universities and other institutions that receive Federal funding. Read More
Laboratories at the Centers for Disease Control and Prevention have been repeatedly cited in private government audits for failing to properly secure potential bioterror agents such as anthrax and plague, and not training employees who work with them, according to "restricted" government watchdo... Read More
The strain of bacteria that caused a fatal outbreak of Legionnaires' disease in a Veterans Affairs hospital in western Pennsylvania is "almost identical" to the strain found there more than three decades ago, a newspaper reported.
The Pittsburgh Tribune-Review (http://bit.ly/ZBHAYG ) said Sun... Read More
The human “microbiome”—the trillions of bacteria, yeasts, and other microscopic creatures that live inside a human body—has been one of the major science stories in recent years. It seems that barely a week goes by that we don’t learn something new about the relationship between the human body a... Read More
Odd-looking viruses are waging war on an ocean-living bacterium that’s key to the Earth’s carbon cycle, say researchers.
In one corner is the Earth’s most abundant organism: SAR11, an ocean-living bacterium that survives where most other cells would die and plays a major role in the planet’s... Read More
From anxiety medication to birth control, pain killers, nutrient supplements and blood thinners, the remains of what we put into our bodies pass through the other end, off to the waste control centers that need to deal with our mess. Getting pharmaceutical leftovers out of the water so that it c... Read More
Your body uses white blood cells to fight off the bacteria and viruses that invade your body and make you sick. In the gif below you can see a white blood cell called a neutrophil chase down a Staphylococcus aureus bacterium. The circular cells that the white blood cell is moving through are red... Read More
Researchers say they have a clearer picture of why “bad” bacteria flourish in the intestines of people with inflammatory bowel disease (IBD).
The team discovered a biological mechanism by which harmful bacteria grow, edge out beneficial bacteria, and damage the gut in IBD. This new understand... Read More
¿Cuan seguras son las aguas recreacionales? Esta es una de las preguntas que le hacemos a la Dra. Helena Solo-Gabriele de la Universidad de Miami en Florida, EE.UU.
La Dra. Solo-Gabriele, ... Read More
Offense or defense? Quorum sensing has been tied to a number of bacterial functions, many of them involving virulence, but could quorum sensing also be used in defense? In mBio this week, there's new evidence that E. coli uses quorum sensing to trigger an antiphage mechanism that defends against... Read More
Simon Fraser University virologist Masahiro Niikura and his doctoral student Nicole Bance are among an international group of scientists that has discovered a new class of molecular compounds capable of killing the influenza virus.
Working on the premise that too much of a good thing can be ... Read More
Epstein-Barr virus (EBV) affects more than 90 percent of the population worldwide and was the first human virus found to be associated with cancer. Now, researchers from Beth Israel Deaconess Medical Center (BIDMC) have broadened the understanding of this widespread infection with their discover... Read More
Bacteria become resistant to antibiotics when stressed, finds research published in BioMed Central's open access journal BMC Evolutionary Biology. In particular E. coli grown at high temperatures become resistant to rifampicin.
It is generally thought that antibiotic resistance is costly to m... Read More
Sourdough bread resists mold, unlike conventionally leavened bread. Now Michael Gaenzle and colleagues of the University of Alberta, Edmonton, show why. During sourdough production, bacteria convert the linoleic acid in bread flour to a compound that has powerful antifungal activity. The researc... Read More
The risk of being infected with human immunodeficiency virus type 1 (HIV-1) is substantially enhanced in individuals with other sexually transmitted diseases. For example, infection with herpes simplex virus type 2 (HSV-2) increases the risk ratio of acquiring HIV from 2 to 4. Explanations for t... Read More
This episode: Salmonella strain engineered to induce our cells to immunize us against diseases!
A simple, fast and inexpensive new test for leprosy offers hope that, even in the poorest countries, victims can be found and cured before they become permanently disabled or disfigured like the shunned lepers of yore.
American researchers developed the test, and Brazil’s drug-regulatory agen... Read More