A mysterious bowel disease thought to be caused by an over-exuberant immune system may paradoxically be triggered by immune cells that don't do enough in the early stages of bacterial infection.
Since some treatments for Crohn's disease aim to suppress the immune system, it's possible these d... Read More
Cigarettes are "widely contaminated" with bacteria, including some known to cause disease in people, concludes a new international study conducted by a University of Maryland environmental health researcher and microbial ecologists at the Ecole Centrale de Lyon in France.
The research team de... Read More
There have been about 40 deaths worldwide among people who have recently been vaccinated against pandemic H1N1 influenza, but there is no evidence the deaths are related to the vaccine, officials from the World Health Organization said today. At least 65 million people have been vaccinated, and ... Read More
Diarrhea doesn't make headlines. Nor does pneumonia. AIDS and malaria tend to get most of the attention.
Yet even though cheap tools could prevent and cure both diseases, they kill an estimated 3.5 million kids under 5 each a year globally — more than HIV and malaria combined.
"They have b... Read More
Food production of modern human societies is mostly based on large-scale monoculture crops, but it now appears that advanced insect societies have the same practice. Our societies took just ten thousand years of (mainly cultural) evolution to adopt this habit and we are far from convinced that i... Read More
A high-fat, high-sugar diet can quickly and dramatically change the population of microbes living in the digestive tract, according to a new study of human gut bugs transplanted into mice.
Trillions of microbes live inside the human gut, and one of their functions is to process parts of foods... Read More
A new study suggests that tooth-binding micelles (or particles) may provide long-term cavity protection by adhering to tooth surfaces and gradually releasing encapsulated antimicrobials. Formulation of a mouthwash-based delivery system is anticipated, ultimately simplifying application and incre... Read More
In a new research, scientists have found that ant farmers, like their human counterparts, depend on nitrogen-fixing bacteria to make their gardens grow.
The finding documents a previously unknown symbiosis between ants and bacteria and provides insight into how leaf-cutter ants have come to d... Read More
The entrants in the 2009 Olympus BioScapes International Digital Imaging Competition provide fitting tribute to nearly 1,000 years of making the invisible visible. These six videos include one winner and five Honorable Mentions. Read More
More than half a million people in the U.S. have died from HIV infection, and more than a million currently live with the virus, but a relative handful of people infected with HIV never get treatment for it and never get sick from it. The immune systems of this small population—perhaps 50,000 Am... Read More
With concerns about global warming and rising oil prices, there is renewed impetus behind efforts to harness microorganisms as a way of reducing worldwide reliance on fossil fuels. Some companies are keen on exploiting photosynthetic microbes, whereas others are counting on other ways to marsha... Read More
WORCESTER, Mass. – A team of researchers at the Worcester Polytechnic Institute (WPI) Life Sciences and Bioengineering Center at Gateway Park has developed a new model system to study fungal infections. The system can be a powerful tool for screening potential drug targets for conditions like th... Read More
One of the biggest disappointments in AIDS research was the failure of Merck & Co.'s STEP trial of an experimental AIDS vaccine, which was terminated prematurely in 2007 when it became apparent that the vaccine seemed to increase the number of people who contracted HIV. Now, British scientists b... Read More
A new study has cast fresh doubts on an AIDS vaccine that was abandoned in 2007 because of fears that it made some recipients more susceptible to HIV infection. The new research is at odds with other studies that cleared the vaccine of responsibility.
The finding reopens the question of wheth... Read More
For the first time this academic year, college campuses have reported a significant drop in cases of influenza-like illness, generally assumed to be pandemic H1N1 influenza, according to the American College Health Assn. Unfortunately, the association also recorded the first two deaths from the ... Read More
Sponsored by the WTO, that's World Toilet Organization, November 19 is World Toilet Day. The event seeks to increase awareness of the importance of toilet sanitation and each individual's right to a safe and hygienic sanitary environment.
One of their activities for this year is The B... Read More
A protein found in the saliva of ticks helps protect mice from developing Lyme disease, Yale researchers have discovered. The findings, published in the November 19 issue of Cell Host & Microbe, may spur development of a new vaccine against infection from Lyme disease, which is spread through ti... Read More
Bird flu viruses would have to make at least two simultaneous genetic mutations before they could be transmitted readily from human to human, according to research published November 19 in PLoS One.
The authors of the new study, from Imperial College London, the University of Reading and the ... Read More
Scientists at Texas A&M University say they are investigating how some viruses, known for attacking humans and animals, instead attack bacteria.
The researchers said information about such viral attackers, called phages or bacteriophages, might aid in the treatment of bacterial infections.
... Read More