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Microbiology News
Wed, 26 Nov 2014 17:14:28 EST
Experimental Ebola vaccine appears safe, prompts immune response
An experimental vaccine to prevent Ebola virus disease was well-tolerated and produced immune system responses in all 20 healthy adults who received it in a Phase 1 clinical trial.
Wed, 26 Nov 2014 13:27:04 EST
Unbelievable underworld and its impact on us all
A new study has pulled together research into the most diverse place on earth to demonstrate how the organisms below-ground could hold the key to understanding how the worlds ecosystems function and how they are responding to climate change.
Wed, 26 Nov 2014 09:42:52 EST
Bioengineering study finds two-cell mouse embryos already 'talking' about their future
Bioengineers have discovered that mouse embryos are contemplating their cellular fates in the earliest stages after fertilization when the embryo has only two to four cells, a discovery that could upend the scientific consensus about when embryonic cells begin differentiating into cell types. Their research used single-cell RNA sequencing to look at every gene in the mouse genome.
Wed, 26 Nov 2014 07:50:59 EST
Microbial communities for health and environment: Precise measurements of microbial ecosystems
Biologists have succeeded for the first time in describing the complex relationships within an ecosystem in unprecedented detail. Their model ecosystem was a “biological wastewater treatment plant”. In it live numerous species of bacteria which are involved in the wastewater purification process.
Tue, 25 Nov 2014 20:58:57 EST
A warming world may spell bad news for honey bees
A bee parasites from exotic climates threatens UK bees. Research predicts that an exotic gut parasite could cause increasing damage to UK bees as climates warms.
Tue, 25 Nov 2014 13:19:25 EST
Link between DNA transcription, disease-causing expansions
Researchers in human genetics have known that long nucleotide repeats in DNA lead to instability of the genome and ultimately to human hereditary diseases such Freidreich's ataxia and Huntington's disease. Scientists have believed that the lengthening of those repeats occur during DNA replication when cells divide or when the cellular DNA repair machinery gets activated. Recently, however, it became apparent that yet another process called transcription, which is copying the information from DNA into RNA, could also been involved.
Tue, 25 Nov 2014 12:48:02 EST
Vegetable oil ingredient key to destroying gastric disease bacteria
The bacterium Helicobacter pylori is strongly associated with gastric ulcers and cancer. To combat the infection, researchers developed LipoLLA, a therapeutic nanoparticle that contains linolenic acid, a component in vegetable oils. In mice, LipoLLA was safe and more effective against H. pylori infection than standard antibiotic treatments.
Tue, 25 Nov 2014 11:18:18 EST
Trojan horse tactic gives parasites edge over immune systems
Parasites use Trojan horse subterfuge to suppress the immunity of their victims when causing infection, according to a study. Scientists have shown that parasites are able to secrete tiny sealed packages of genetic material into the cells of their victims, in order to suppress the immune response to infection.
Tue, 25 Nov 2014 11:18:14 EST
Vultures evolved an extreme gut to cope with disgusting dietary habits
How is it that vultures can live on a diet of carrion that would at least lead to severe food-poisoning, and more likely kill most other animals?
Tue, 25 Nov 2014 09:11:14 EST
Sialic acid shields human cells from attack by immune system
Biochemists have identified molecular structures that allow the immune system to tell friend from foe. The researchers identified and crystallized a complex that forms the contact point between the healthy human cell and the complement system. Using nuclear magnetic resonance spectroscopy and X-ray structure analysis, they were able to solve the molecular structure of the complex. It is composed of a glycan containing sialic acid and two domains of the complement system regulator, factor H.
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