News tagged with host
Scientists follow live infection by food-poisoning bacteria Listeria
May 28, 2009 |
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Scientists in Portugal and France managed to follow the patterns of gene expression in food-poisoning bacteria Listeria monocytogenes (L. monocytogenes) live during infection for the first time. The work ab ...
Viruses are sneakier than we thought
May 27, 2009 |
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Viruses are molecular marauders, plundering cells for the resources they need to multiply. Of central importance for viruses is the ability to commandeer cellular gene expression machinery. Several human herpesviruses put ...
Bacteria with a built-in thermometer
May 20, 2009 |
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Researchers in the "Molecular Infection Biology group" at the Helmholtz Centre for Infection Research (HZI) in Braunschweig and the Braunschweig Technical University could now demonstrate for the first time that bacteria ...
Salmonella's sweet tooth predicts its downfall
May 19, 2009 |
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For the first time UK scientists have shown what the food poisoning bug Salmonella feeds on to survive as it causes infection: glucose.
Cosmology's best standard candles get even better
May 18, 2009 |
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Members of the international Nearby Supernova Factory (SNfactory), a collaboration among the U.S. Department of Energy's Lawrence Berkeley National Laboratory, a consortium of French laboratories, and Yale ...
Refined Hubble Constant narrows explanations for dark energy
May 07, 2009 |
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Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe's present expansion rate to a precision where ...
Virologists developing more potent vaccine technology
May 04, 2009 |
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Virginia Tech virologist Chris Roberts' goal is to develop a platform for a flu vaccine that allows rapid modifications to meet new strains of flu.
Mosquito parasite may help fight dengue fever
May 01, 2009 |
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Dengue fever is a terrible viral disease blighting many of the world's tropical regions. Carried by mosquitoes, such as Aedes aegypti, 40% of the world's population is believed to be at risk from the infect ...
Tufted bacteria cause infection in premature babies
Apr 29, 2009 |
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Bacteria that normally reside on the skin of healthy people can cause serious infections in premature babies. A group of researchers at the Swedish medical university Karolinska Institutet have now found an explanation for ...
Findings uncover new details about mysterious virus
Apr 28, 2009 |
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(PhysOrg.com) -- An international team of researchers has determined key structural features of the largest known virus, findings that could help scientists studying how the simplest life evolved and whether the unusual virus ...
When industrious ants go too far
Apr 28, 2009 |
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Nature is full of mutually beneficial arrangements between organisms—like the relationship between flowering plants and their bee pollinators. But sometimes these blissful relationships have a dark side, as Harvard biologist ...
Scientists identify host factors critical to dengue virus infection
Apr 22, 2009 |
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By painstakingly silencing genes one at a time, scientists at Duke University Medical Center have identified dozens of proteins the dengue fever virus depends upon to grow and spread among mosquitoes and humans.
Human stem cells promote healing of diabetic ulcers
Apr 20, 2009 |
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(PhysOrg.com) -- Treatment of chronic wounds is a continuing clinical problem and socio-economic burden with diabetic foot ulcers alone costing the NHS £300 million a year. Scientists in Bristol have found ...
Scientists use RNA to reprogram one cell type into another
Apr 16, 2009 |
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(PhysOrg.com) -- For the past decade, researchers have tried to tweak cells at the gene and nucleus level to reprogram their identity. Now, working on the idea that the signature of a cell is defined by molecules ...
New insight into an old reaction: Adenylylation regulates cell signaling
Apr 09, 2009 |
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A new study reveals the importance of adenylylation in the regulation of cell signaling from bacteria to higher organisms. The research, published by Cell Press in the April 10th issue of the journal Molecular Cell, provid ...
