Bacteria News and Research

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Blocking quorum sensing would prevent bacteria from turning pathogenic

Bacteria are among the simplest organisms in nature, but many of them can still talk to each other, using a chemical "language" that is critical to the process of infection. Sending and receiving chemical signals allows bacteria to mind their own business when they are scarce and vulnerable, and then mount an attack after they become numerous enough to overwhelm the host's immune system.

7 Dec 2010

Experimental flu vaccine triggers immune response, protects against flu

Vaccine production hinges on the availability of hundreds of millions of eggs - and even with the vaccine, flu still claims somewhere around 36,000 lives in the United States during a typical year.

7 Dec 2010

One shot, cheap meningitis vaccine now available in Africa

As a boon to millions of children who die of meningitis, a cheap new vaccine for bacterial meningitis debuted today with the launching of an immunization drive in the West African country of Burkina Faso, in the first stage of an effort that could rid sub-Saharan Africa of the primary cause of meningitis, the World Health Organization (WHO) announced.

6 Dec 2010

NovaBay Pharmaceuticals, Galderma expand their multi-year collaboration agreement

NovaBay Pharmaceuticals, Inc., a clinical stage biotechnology company developing first-in-class, anti-infective compounds for the treatment and prevention of antibiotic-resistant infections, and Galderma, a global leading pharmaceutical company dedicated exclusively to the field of dermatology, announce the expansion of their multi-year collaboration agreement. Based on positive data assessing the activity of NovaBay's Aganocide compounds against impetigo, Galderma has agreed to exercise its option for this indication.

6 Dec 2010

Researchers adapt gene chip microarray technology to study glycans

Sugar molecules coat every cell in our bodies and play critical roles in development and disease, yet the components of these "glycans" have been difficult for scientists to study, because of their complexity.

6 Dec 2010

Marine life-inspired anti-microbial surfaces

Taking a leaf from animals like dolphins and pilot whales that are known to have anti-fouling skins, researchers from A*STAR's Industrial Consortium On Nanoimprint (ICON) are using nanotechnology to create synthetic, chemical-free, anti-bacterial surfaces. The surfaces can reduce infections caused by pathogens such as S. aureus and E. coli and can be used on common plastics, medical devices, lenses and even ship hulls. Conventional methods for preventing bacterial surface attachment may use potentially harmful metal ions, nanoparticles, chemicals or UV-radiation.

5 Dec 2010

Researchers decipher mechanism responsible for dental plaque sticking to teeth

The Groningen professors Bauke Dijkstra and Lubbert Dijkhuizen have deciphered the structure and functional mechanism of the glucansucrase enzyme that is responsible for dental plaque sticking to teeth. This knowledge will stimulate the identification of substances that inhibit the enzyme. Just add that substance to toothpaste, or even sweets, and caries will be a thing of the past. The results of the research have been published this week in the journal Proceedings of the National Academy of Sciences (PNAS).

4 Dec 2010

Mothers exposure to farm animals and cats during pregnancy lowers risk of atopic dermatitis in children

Children whose mothers are exposed to farm animals and cats are better protected against atopic dermatitis and are less likely to develop this painful inflammation of the skin in their first two years of life. A group of researchers from the University of Zurich and other universities have published evidence supporting this theory in the Journal of Allergy & Clinical Immunology.

3 Dec 2010

Research on ribosome could aid antibiotic development against MRSA infection

Theoretical biologists at Los Alamos National Laboratory have used a New Mexico supercomputer to aid an international research team in untangling another mystery related to ribosomes-those enigmatic jumbles of molecules that are the protein factories of living cells.

3 Dec 2010

New inexpensive filtering technology to kill disease-causing bacteria in water

With almost one billion people lacking access to clean, safe drinking water, scientists are reporting development and successful initial tests of an inexpensive new filtering technology that kills up to 98 percent of disease-causing bacteria in water in seconds without clogging. A report on the technology appears in Nano Letters, a monthly American Chemical Society journal.

3 Dec 2010

White House marks World AIDS Day

Commemorating World AIDS Day on Wednesday President Barack Obama called for continuing to fight HIV/AIDS domestically and abroad, Agence France-Presse reports (12/1).

2 Dec 2010

Research: Environmental bacteria compromises effectiveness of BCG vaccine

A new discovery may explain why a tuberculosis vaccine is not as effective for some people as anticipated, and potentially explains why other vaccines do not work as well for some as they do for others.

2 Dec 2010

Study finds nursing home residents carry MRSA infection

A study published in the January 2011 issue of Infection Control and Hospital Epidemiology finds that a high percentage of nursing home residents carry Methicillin-resistant Staphylococcus aureus (MRSA), and suggests that some nursing homes could be doing more to prevent the spread of the bacteria, which can lead to hard-to-treat infections.

2 Dec 2010

Scientists find new protein to break-up blood clots in prion diseases

The joy of a juicy hamburger could make a comeback thanks a new discovery by scientists from the University of Kentucky. In a new research report in the December 2010 print issue of The FASEB Journal, scientists found that a protein our body uses to break up blood clots speeds up the progress of prion diseases. This substance, called plasminogen, is a new drug target for prion diseases in both humans and animals.

2 Dec 2010

Biodiversity degradation may have perverse consequences for emerging pathogens

Habitat destruction and species extinction may lead to an increase in diseases that infect humans and other species, according to a paper in the journal Nature co-authored by a University of Florida ecologist.

2 Dec 2010

APHP selects Bruker´s Biotyper as exclusive MALDI-TOF mass spectrometry for microbial identification

At the 30th Reunion Interdisciplinaire de Chimothérapie Anti-Infectieuse (RICAI), Bruker announces that the Assistance Publique Hôpitaux de Paris (APHP) has selected Bruker´s IVD MALDI Biotyper as their exclusive MALDI-TOF mass spectrometry-based microbial identification tool.

2 Dec 2010

Lipids react and change to bacterial stimulus, trigger cell's immune response

For the first time, scientists have described not only the identities and quantities of fat species in a living mammalian cell in this case, a mouse macrophage or white blood cell but they also report how these lipids react and change over time to a bacterial stimulus triggering the cell's immune response.

2 Dec 2010

Regular, low-cost preventive medication can protect people with HIV from TB

Children and adults living with HIV can be protected from one of their deadliest threats - tuberculosis (TB) - with a regular, low-cost preventive medication according to new guidelines launched today by the WHO. Of the nearly two million AIDS-related deaths each year, a quarter of them are associated with TB.

2 Dec 2010

Angptl4 protein deficiency could promote inflammatory response in people who consume high saturated fat

A new report in the December Cell Metabolism identifies a protein without which diets high in saturated fat lead to a massive inflammatory response that can prove fatal. The studies in mice suggest that deficiencies in this protective pathway could promote inflammation in those who regularly consume high levels of saturated fat.

1 Dec 2010

Plackers recommends simple steps to maintain healthy teeth, gums during stressful holiday season

Three-quarters of American adults report moderate to high stress levels in their everyday lives, and that number increases during the holiday season, according to a recent survey conducted by the American Psychological Association.

30 Nov 2010