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IU biologist to genetically modify variants of chlamydia

An Indiana University biologist has been awarded over $2.3 million from the National Institutes of Health to genetically modify variants of the human pathogen chlamydia in hopes of finding a vaccine for the most commonly reported bacterial infectious disease in the United States.

27 Mar 2012

Scientists create first full 3-D images of vitamin B12

In a paper published recently in the journal Nature, scientists from the University of Michigan Health System and the Massachusetts Institute of Technology report they have created the first full 3-D images of B12 and its partner molecules twisting and contorting as part of a crucial reaction called methyltransfer.

27 Mar 2012

Ripeness of fruit determines how food-poisoning bacteria grow on them

The ripeness of fruit could determine how food-poisoning bacteria grow on them, according to scientists presenting their work at the Society for General Microbiology's Spring Conference in Dublin this week. Their work could lead to new strategies to improve food safety, bringing many health and economic benefits.

27 Mar 2012

India’s TB treatment inadequate raising risk of drug resistance

India suffers from inadequate government-run tuberculosis (TB) treatment programs and a lack of regulation of the sale of drugs against TB. This has led to the rise in number of drug-resistant cases that are difficult to treat, health activists said Friday.

26 Mar 2012

Commensal bacteria may play an important role in influencing and controlling allergic inflammation

When poet Walt Whitman wrote that we "contain multitudes," he was speaking metaphorically, but he was correct in the literal sense. Every human being carries over 100 trillion individual bacterial cells within the intestine -- ten times more cells than comprise the body itself.

26 Mar 2012

Previously unknown mechanism helps intestinal bacteria to affect formation of blood vessels

Researchers at the Sahlgrenska Academy at the University of Gothenburg, Sweden, have discovered a previously unknown mechanism which helps intestinal bacteria to affect the formation of blood vessels. The results, which are presented in Nature, may provide future treatments of intestinal diseases and obesity.

26 Mar 2012

Bacteriophages can tackle drug-resistant bacterial infections

Viruses that can target and destroy bacteria have the potential to be an effective strategy for tackling hard-to-treat bacterial infections. The development of such novel therapies is being accelerated in response to growing antibiotic resistance, says Dr David Harper at the Society for General Microbiology's Spring Conference in Dublin.

26 Mar 2012

S. gordonii may trigger infective endocarditis

Oral bacteria that escape into the bloodstream are able to cause blood clots and trigger life-threatening endocarditis. Further research could lead to new drugs to tackle infective heart disease, say scientists presenting their work at the Society for General Microbiology's Spring Conference in Dublin this week.

26 Mar 2012

New IVIG trial can reduce OCD symptoms in children with PANDAS

Criteria for a broadened syndrome of acute onset obsessive compulsive disorder (OCD) have been proposed by a National Institutes of Health scientist and her colleagues. The syndrome, Pediatric Acute-onset Neuropsychiatric Syndrome (PANS), includes children and teens that suddenly develop on-again/off-again OCD symptoms or abnormal eating behaviors, along with other psychiatric symptoms - without any known cause.

26 Mar 2012

More supermarkets shun “pink slime”

Supermarket chains Kroger Co. and Stop & Shop announced Thursday that they would no longer sell beef that includes an additive with the unappetizing “pink slime.” Federal regulators say the ammonia-treated filler, known in the industry as “lean, finely textured beef,” meets food safety standards. But critics say the product could be unsafe and is an unappetizing example of industrialized food production.

25 Mar 2012

Multiresistant bacteria withstand wastewater treatment processes

Large quantities of antibiotic-resistant bacteria enter the environment via municipal - and especially hospital - wastewater streams. Although wastewater treatment plants reduce the total number of bacteria, the most hazardous - multiresistant - strains appear to withstand or even to be promoted by treatment processes. This was demonstrated by Eawag researchers in a study carried out in Lake Geneva, near Lausanne.

23 Mar 2012

Whooping cough outbreak despite vaccination

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21 Mar 2012

Study finds higher death rate in calorie-restricted models of IBD

In a surprising result, Michigan State University researchers looking at the effects of diet on bowel disease found that mice on a calorie-restricted diet were more likely to die after being infected with an inflammation-causing bacterial pathogen in the colon.

21 Mar 2012

New perspective on why the immune system makes us worse while trying to make us well

A new article in The Quarterly Review of Biology helps explain why the immune system often makes us worse while trying to make us well.

21 Mar 2012

IDSA releases new rhinosinusitis guidelines

The vast majority of sinus infections are caused by viruses and should not be treated with antibiotics, suggest new guidelines released by the Infectious Diseases Society of America.

21 Mar 2012

New antibiotic shows promise against bovine mastitis

Food-borne diseases might soon have another warrior to contend with, thanks to a new molecule discovered by chemists at the University of Illinois. The new antibiotic, an analog of the widely used food preservative nisin, also has potential to be a boon to the dairy industry as a treatment for bovine mastitis.

20 Mar 2012

Study identifies new hypervariable regions in human gut viruses

A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect those bacteria also shape who we are. Frederic D. Bushman, PhD, professor of Microbiology at the Perelman School of Medicine at the University of Pennsylvania, led a study published this month in the Proceedings of the National Academy of Sciences that sequenced the DNA of viruses -- the virome -- present in the gut of healthy people.

20 Mar 2012

New information on efficacy of CLA in treating Crohn's disease

The Nutritional Immunology and Molecular Medicine Laboratory (NIMML) research team at Virginia Tech has discovered important new information on the efficacy of conjugated linoleic acid (CLA) in treating Crohn's disease, a form of inflammatory bowel disease (IBD). CLA is a naturally occurring acid found in meat and dairy products known for its anti-cancer and immune modulatory properties.

20 Mar 2012

New solid state NMR method can help visualize structure of proteins

A new method to reveal the structure of proteins could help researchers understand biological molecules - both those involved in causing disease and those performing critical functions in healthy cells.

20 Mar 2012

Common infections could become deadly with increase in antibiotic resistance, WHO's Chan says

As more bacteria become resistant to antibiotics, "common infections could become deadly, according to" WHO Director-General Margaret Chan, who spoke on Wednesday at a conference titled "Combating Antimicrobial Resistance: Time for Action" in Copenhagen, ABC News reports.

19 Mar 2012