All news from Microbiology

Albendazole Treatment

Albendazole Treatment And The Harmful Effect On The Microbiome

A new study has identified no major differences between the microbiomes of people infected; with roundworm or hookworm and uninfected peers. The investigators found no evidence that curing either of these infections with albendazole treatment has a harmful effect on the microbiome; but they identified specific changes that result from curing hookworm infections and from…

proteins from host cells

Disease-causing Nibbling Amoeba Hides by Displaying Proteins

A parasitic amoeba that causes severe gut disease in humans protects itself from attack by biting off pieces of host cells and putting their proteins on its own surface, according to a study by microbiologists at the University of California, Davis. “We’re very excited about how this ties into amoebic infection and into broader themes…

New model

New Model Describes How Bacteria Spread in Different Forms

A new model describing how bacteria spread; when moving in two different ways has been published; in the open-access journal eLife. The results provide another step towards identifying general principles; that are able to explain the behaviour of communities of different species of bacteria. Bacteria can work together in two different ways; they can form…

Bacteria

Major Findings Help Understand Bacteria's 'Superglue'

A key factor in the establishment of infections by most bacterial pathogens is their adherence to host epithelial cells. However, Autotransporters (ATs) are the largest group of outer membrane and secreted proteins in bacteria; and play important roles in virulence; including promoting adhesion. So, ATs share a common domain organisation; consisting of a Sec-dependent signal sequence;…

Microbes

Food Poisoning Remains Persistent Problem

As recent illnesses tied to raw turkey, ground beef, cut melon and romaine lettuce suggest, U.S. food poisoning cases don’t appear to be going away anytime soon. The Centers for Disease Control and Prevention said in a report that the frequency of several types of food poisoning infections climbed last year, but that the increases…

Microbes may act

Microbes May Act as Gatekeepers of Earth's Deep Carbon

This groundbreaking study, published in Nature, shows that microbes consume and — crucially — help trap a small amount of sinking carbon in this zone. This finding has important implications for understanding Earth’s fundamental processes and for revealing how nature can potentially help mitigate climate change. At a subduction zone there is communication between Earth’s surface…

navigating a maze

Bacteria Reveal Strong Individuality: When Navigating A Maze

Although they are; considered the simplest of all life forms; even microorganisms sense their environment; and are able to actively move within it. This allows them to identify both food and harmful substances and to move towards or away from them, guided by the concentration gradient of the substance in their environment. The journey of…

irritable bowel syndrome

Microbiome Science May Help Doctors Deliver More Effective

To improve the treatment of children with irritable bowel syndrome (IBS); investigators have developed a sophisticated way to analyze the microbial and metabolic contents of the gut. However, a report in The Journal of Molecular Diagnostics, published by Elsevier, describes how a new battery of tests enables researchers to distinguish patients with IBS from healthy…

climate-changing laughing gas

Bacteria Build An Enzyme: Destroys Climate-changing Laughing Gas

New research from the University of East Anglia reveals how soil bacteria build the only known enzyme for the destruction of the potent global warming and ozone-depleting gas nitrous oxide. Alongside carbon dioxide (CO2) and methane; the greenhouse gas nitrous oxide (N2O); commonly known as ‘laughing gas’; is now a cause for great concern; and…

Bacteria

Bacteria Associated with Diabetic Wounds: That Do Not Heal

Whether a wound — such as a diabetic foot ulcer — heals or progresses to a worse outcome; including infection or even amputation; may depend on the microbiome within that wound. A new study from the Perelman School of Medicine at the University of Pennsylvania; found specific strains of the common pathogen Staphylococcus aureus (S.…

Cell-killing proteins

Cell-killing Proteins Suppress Listeria without Killing Cells

RIPK3, a key mediator of necroptosis, has been implicated in the host defense against viral infection primary in immune cells. However, gene expression analysis revealed that RIPK3 is abundantly expressed not only in immune organs; but also in the gastrointestinal tract, particularly in the small intestine. We found that orally inoculated Listeria monocytogenes; a bacterial…

Certain microbes may reduce

Microbes May Reduce Allergy-like Reactions

Some aged cheeses cause allergy-like reactions in many people; but an Iowa State University scientist is working to identify bacteria; that could reduce those unpleasant side effects. The answer to alleviating the unpleasant reactions; that result from eating ripened cheeses could lie in the bacteria; that populate the cheese’s rind, said Stephan Schmitz-Esser, associate professor…