Bacteria News and Research

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Issues in health delivery: Hospital-spread infections; Finger-prick blood tests for diabetes; Medicare spent millions on unnecessary stents

News outlets report on a variety of issues and developments related to quality of care and health delivery systems.

8 Dec 2010

Researchers synthesize wound-healing peptides

Newly-created bioactive peptides promote wound healing through the growth of new blood vessels and epithelial tissue, such as skin. These wound-healing peptides, synthesized by researchers at the Tufts Center for Innovations in Wound Healing Research, increased angiogenesis in vitro by 200 percent.

8 Dec 2010

Researchers develop new method to reduce amount of radiation needed to kill pathogens

A team of Texas AgriLife Research engineers has developed a way to cut by as much as half the amount of irradiation needed to kill 99.999 percent of salmonella, E. coli and other pathogens on fresh produce.

7 Dec 2010

Interference with biofilm detachment mechanisms may prevent biofilm-associated infections

Patients in hospitals and healthcare facilities can develop infections as a result of contamination of indwelling medical devices such as catheters with bacteria that are normal inhabitants of the skin of the patient or health care personnel. The bacterium Staphylococcus epidermidis is a major cause of such infections.

7 Dec 2010

Knee replacement operations cause bacterial infection in the joint

Last year 12 700 knee replacement operations were carried out in Sweden. Most such operations go well, but some patients are affected by bacterial infection in the joint and have to be re-operated. This is a complicated procedure that does not always produce successful results, as shown in a thesis by Anna Stefánsdóttir from Lund University in Sweden.

7 Dec 2010

Scientists identify protein that disseminates biofilm-associated infection

What:Scientists from the National Institutes of Health have discovered how catheter-related bacterial infection develops and disseminates to become a potentially life-threatening condition. The study, which included research on Staphylococcus epidermidis in mice implanted with catheters, could have important implications for understanding many types of bacterial biofilm infections, including those caused by methicillin-resistant S. aureus (MRSA).

7 Dec 2010

New endoscope aids in early detection and diagnosis of inflammatory bowel disease.

An international team of researchers led by the University of East Anglia (UEA) have developed a new kind of endoscope to aid the early detection and diagnosis of inflammatory bowel disease.

7 Dec 2010

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