Bacteria News

Engineers Develop Probiotics That Can Detect Tumors

May 28, 2015

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Engineered Probiotics Can Detect Tumors in the Liver

By using probiotics, a team of engineers has devised a new way to detect cancer that has spread to the liver. Many types of cancer, including colon and pancreatic, tend to metastasize to the liver. The earlier doctors can find these tumors, the more likely that they can successfully treat them. “There are interventions, like […]

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Biologists Reverse Bacterial Resistance to Antibiotics

May 7, 2015

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Scientists Reverse Bacterial Resistance to Antibiotics

A newly published study details how a team of researchers returned drug-resistant bacteria to a pre-resistant state. Biologist Miriam Barlow of the University of California, Merced, and mathematician Kristina Crona of American University tested and found a way to return bacteria to a pre-resistant state. In research published in the open-access journal PLOS ONE, they […]

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Nanotubular Structures Enable a Direct Exchange of Nutrients Between Bacteria

February 23, 2015

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Bacteria Connect to Each Other Via Nanotubes

New research from the Max Planck Institute shows that some bacteria can form nanotubular structures between single cells that enable a direct exchange of nutrients. It is well-known that bacteria can support each others’ growth and exchange nutrients. Scientists at the Max Planck Institute for Chemical Ecology in Jena, Germany, and their colleagues at the […]

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Nanotech Pores Keep Bacteria from Sticking to Surfaces

January 12, 2015

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New Nanotech Pores Keep Bacteria from Sticking to Surfaces

A team of researchers used anodization to create nanoscale pores that change the electrical charge and surface energy of a metal surface, creating a nanoporous surface called alumina that prevents bacteria from attaching to the surface. Just as the invention of nonstick pans was a boon for chefs, a new type of nanoscale surface that […]

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Yale Study Explains How We Live in Harmony With Gut Bacteria

January 9, 2015

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How We Live in Harmony With Gut Bacteria

New research from Yale University identifies a strategy that non-harmful gut bacteria employ to preserve this stable relationship with their host during inflammation. Stability in the composition of the hundred trillion bacterial cells in the human gastrointestinal tract is crucial to health, but scientists have been perplexed how our microbiota withstands an onslaught of toxins, […]

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Scientists Shed New Light on How ‘Microbial Dark Matter’ Might Cause Disease

December 31, 2014

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How Microbial Dark Matter Might Cause Disease

A landmark discovery reveals new insights on the biological, ecological and medical importance of TM7, and could lead to better understanding of other elusive bacteria. One of the great recent discoveries in modern biology was that the human body contains 10 times more bacterial cells than human cells. But much of that bacteria is still […]

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Engineered Bacteria Store Memories of Chemical Exposure

November 17, 2014

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Engineered Bacteria Can Store Memories of Chemical Exposure

New research from MIT reveals that engineered E. coli can store long-term memories of chemical exposure and other events in their DNA. MIT engineers have transformed the genome of the bacterium E. coli into a long-term storage device for memory. They envision that this stable, erasable, and easy-to-retrieve memory will be well suited for applications […]

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Engineered Liposomes: A Possible Alternative to Antibiotics

November 5, 2014

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Scientists Develop a Possible Alternative to Antibiotics

By engineering artificial nanoparticles made of lipids, scientists have developed a treatment for bacterial infections without using antibiotics. Scientists from the University of Bern have developed a novel substance for the treatment of severe bacterial infections without antibiotics, which would prevent the development of antibiotic resistance. Ever since the development of penicillin almost 90 years […]

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Scientists Generate Renewable Propane Using Bacteria

September 5, 2014

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Researchers Engineer Gut Bacteria to Generate Renewable Propane

Researchers used Escherichia coli to interrupt the biological process that turns fatty acids into cell membranes, channeling the fatty acids along a different biological pathway so that the bacteria made engine-ready renewable propane instead of cell membranes. The development is a step towards commercial production of a source of fuel that could one day provide […]

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Researchers Identify Gut Bacteria That Protect Against Food Allergies

August 26, 2014

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Researchers Identify Gut Bacteria That Protects Against Food Allergies

A newly published study from the University of Chicago reveals that the common gut bacteria Clostridia prevent sensitization to allergens in a mouse model, paving the way for probiotic therapies to treat food allergies. The presence of Clostridia, a common class of gut bacteria, protects against food allergies, a new study in mice finds. By […]

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Harvard Scientists Identify Microbe that “Eats” Electricity

March 11, 2014

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Harvard Scientists Identify Microbe that Eats Electricity

In a new study, Harvard scientists show that the bacterium Rhodopseudomonas palustris can use natural conductivity to pull electrons from minerals located deep in soil and sediment while remaining at the surface. There have been plenty of fad diets that captured the public’s imagination over the years, but Harvard scientists have identified what may be […]

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UCSD Biologists Develop New Method for Identifying Antibiotics

September 18, 2013

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Biologists Develop a New Method for Identifying and Characterizing Antibiotics

A newly published study details how biologists at UC San Diego developed a new method for identifying and characterizing antibiotics. Biologists at the University of California, San Diego have developed a revolutionary new method for identifying and characterizing antibiotics, an advance that could lead to the discovery of new antibiotics to treat antibiotic resistant bacteria. […]

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Scientists Pinpoint Lowest Temperature Limit for Life on Earth

August 28, 2013

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Scientists Discover Lowest Temperature Limit for Life on Earth

In a new study, scientists reveal that -20°C is the lowest temperature at which simple life can live and grow on Earth. The study, which is published in PLoS One, reveals that below -20°C, single-celled organisms dehydrate, sending them into a vitrified – glass-like – state during which they are unable to complete their life […]

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Scientists Reveal the Structure of the Typhoid Toxin

July 11, 2013

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Researchers Reveal Typhoids Lethal Secret

In a newly published study, Yale scientists offer an explanation of how Typhoid fever still kills hundreds of thousands of people every year and suggest the basis of a future vaccine. Typhoid fever is one of the oldest documented diseases known to have afflicted mankind but what makes it so lethal has remained a mystery […]

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Study Shows Changing Gut Bacteria Through Diet Affects Brain Function

May 29, 2013

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Study Reveals Changing Gut Bacteria Through Diet Affects Brain Function

A newly published study found that women who regularly consumed beneficial bacteria known as probiotics through yogurt showed altered brain function in many areas, including those involved in sensory processing. UCLA researchers now have the first evidence that bacteria ingested in food can affect brain function in humans. In an early proof-of-concept study of healthy […]

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Study Reveals How Deadly Bacteria Trick the Immune System

March 1, 2013

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How Deadly Bacteria Trick the Immune System

A new study from UCLA suggests that certain bacteria can pretend to be viruses when infecting humans, allowing them to hijack the body’s immune response so that they can hide inside cells. An outbreak of tuberculosis in the skid row area of downtown Los Angeles may have exposed up to 4,500 individuals to the bacterium […]

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Study Provides Evidence That Viruses Can Have Immune Systems

February 28, 2013

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Study Shows Viruses Can Have Immune Systems

In a newly published study, researchers at Tufts University School of Medicine provide evidence that bacteriophage can acquire a functional and adaptive immune system, possibly opening the door for new phage therapies to treat bacterial diseases. Boston — A study published today in the journal Nature reports that a viral predator of the cholera bacteria […]

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Calcified Bacteria Sheds Light on the Health Consequences of the Evolving Diet

February 18, 2013

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Ancient Teeth Bacteria Record Disease Evolution

A newly published study from the University of Adelaide shows that calcified dental plaque (dental calculus) found on ancient teeth from 34 early European skeletons indicates that the transition from hunter-gatherer to farming shifted the oral microbial community to a disease-associated configuration. DNA preserved in calcified bacteria on the teeth of ancient human skeletons has […]

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