All news from Microbiology

Milk Allergy Is Blocked By Gut Microbes, Finds Study

New research suggests that the gut microbiome may help prevent the development of cow's milk allergy. Scientists at the University of Chicago found that gut microbes from healthy human infant donors transplanted into mice protected animals exposed to milk from experiencing allergic reactions, while gut microbes transplanted from infants allergic to milk did not.

The work, described online in Nature Medicine, was supported in part by NIH's National Institute of Allergy and Infectious Diseases. The findings may inform research to develop microbiome-based therapies to prevent or treat food allergy.

Staphylococcus aureus Shows Resistance to Antibiotic, Finds Study

The Staphylococcus aureus bacterium is one of the common pathogens and can cause sepsis. The new antibiotic dalbavancin is very effective against many bacterial pathogens. However, resistance to the antibiotic was seen to develop during the treatment of a patient with an implanted cardiac device. 

A team of researchers led by infectiologists from the Division of Infectious Diseases and Tropical Medicine, Manuel Kussmann and Heimo Lagler, have now described the phenotypical and genotypical mechanism of this development of resistance for the first time. The study was published in " Emerging Microbes & Infections ".

Ethanol Production: Safety Valve of Yeasts

Why do some yeast cells produce ethanol? Scientists think yeast cells produce ethanol as a 'safety valve, ' to prevent overload when their metabolic operation reaches a critical level. The implications of this new theory could be far-reaching, as well as why cancer cells waste energy by producing lactate. The implications of this new theory were published in  Nature Metabolism .

New Microbial Strains In the Human Fecal Microbiota After Obesity Surgery

Using a unique bioinformatics technique, researchers have detected the emergence of new strains of microbes in the human fecal microbiota after obesity surgery. These new strains emerged after surgical disruption of the stomach and upper small intestine. In contrast, the found that strains of the human gut fecal microbiota resembled those found pre-surgery following surgery in the colon.

MRSA Outbreaks: Computer Model Shows Better Control

A research team led by scientists at the Columbia University Mailman School of Public Health report on a new method to help health officials control outbreaks of methicillin-resistant Staphylococcus aureus, or MRSA, a life-threatening antibiotic-resistant infection often seen in hospitals. The researchers are the first to reveal the invisible dynamics of the spread of these outbreaks and demonstrate a new, more effective method to prevent their spread. Findings are published in the eLife journal  .

Antibiotic Resistance: Bacteria Found in Ancient Irish Soil Halts Growth of Superbugs

Researchers analyzing soil from Ireland long thought to have medicinal properties have discovered that it contains a previously unknown strain of bacteria which is effective against four of the top six superbugs that are resistant to antibiotics, including MRSA.

Antibiotic-resistant superbugs could kill up to 1.3 million people in Europe by 2050, according to recent research. The World Health Organisation (WHO) describes the problem as 'one of the biggest threats to global health, food security, and development today.' The research was published in Frontiers in Microbiology.

Findings: Bacteria Rely on Classic Business Model

The pneumonia causing pathogen Pseudomonas aeruginosa has developed a twin-track strategy to colonize its host. It generates two different cells – motile spreaders and virulent stickers. Researchers have now elucidated how the germ attaches to tissue within seconds and consecutively spreads. Just like the business model: settling – growing – expanding.