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Breakthrough in understanding ‘tummy bug’ bacteria

Scienmag

Credit: University of Exeter Bioimaging Unit Scientists have discovered how bacteria commonly responsible for seafood-related stomach upsets can go dormant and then “wake up” Vibrio parahaemolyticus is a marine bacterium that can cause gastroenteritis in humans when eaten in raw or undercooked shellfish such as oysters and mussels.

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US researchers decipher how one gut bacterium influences immunity

Drug Discovery World

But with hundreds of bacterial species populating our gastrointestinal tract, it’s a daunting task to pinpoint which molecules made by which bacteria affect which biological processes—and how they do so. Such knowledge is essential for learning how to manipulate gut bacteria to treat or prevent illness.

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Probiotics increase gut bacteria diversity in extremely preterm infants

Scienmag

A new clinical study has shown that supplements of a lactic acid bacterium may have positive effects by increasing the diversity of intestinal bacteria in these infants. Extremely preterm infants can suffer from a life-threatening inflammation of the gut.

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Pathogenic bacteria rendered almost harmless

Scienmag

By identifying one of the mechanisms regulating the virulence of Pseudomonas aeruginosa, a UNIGE team is proposing a new strategy to combat this bacterium, which is resistant to many common antibiotics Credit: © UNIGE Pseudomonas aeruginosa is an opportunistic pathogenic bacterium present in many ecological niches, such as plant roots, stagnant water (..)

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Commensal bacteria ‘vaccine’ may safely prep immune cells for meningitis-causing cousin

Scienmag

Researchers have produced vaccine-like immune responses to a dangerous bacterium by colonizing 26 healthy volunteers with a related, but harmless, commensal bacterial species.

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IgG antibodies in breast milk help shape infants’ gut bacteria and immunity

Scienmag

Researchers have known for some time that maternal breast milk provides critical nutrients for newborns, and antibodies from mothers vaccinated against a specific disease-causing bacterium or virus can be transferred via breast milk to babies.

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A gene in tuberculosis bacteria is found essential for siderophore secretion and virulence

Scienmag

of the University of Alabama at Birmingham have made what they call “a major step” in understanding how Mycobacterium tuberculosis acquires iron from its human host — a process essential for the pathogenesis of this bacterium. . – Lei Zhang, Ph.D., and Michael Niederweis, Ph.D.,