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Cell Biology News
Thu, 20 Nov 2014 13:34:30 EST
Biomarker could provide early warning of kidney disease in cats
A new biomarker called 'SDMA' has been developed that can provide earlier identification of chronic kidney disease in cats, which is one of the leading causes of their death. When a test is commercialized, it could help pet owners add months or years to the life of their cat.
Thu, 20 Nov 2014 13:34:24 EST
Quantum mechanical calculations reveal the hidden states of enzyme active sites
Enzymes carry out fundamental biological processes such as photosynthesis, nitrogen fixation and respiration, with the help of clusters of metal atoms as 'active' sites. But scientists lack basic information about their function because the states thought to be critical to their chemical abilities cannot be experimentally observed. Now, researchers have reported the first direct observation of the electronic states of iron-sulfur clusters, common to many enzyme active sites.
Thu, 20 Nov 2014 12:30:53 EST
Nitrogen sensor widespread in the plant kingdom
Quantitatively, nitrogen is one of the most important nutrients for the growth of plant organisms – from simple green algae to highly developed flowering plants. Nitrogen supply is essential for the development of all cell components, and as a good supply results in faster plant growth, it is commonly used as a fertiliser in agriculture.
Thu, 20 Nov 2014 12:30:19 EST
Unwinding the mysteries of the cellular clock
Underlying circadian rhythms is a clock built of transcription factors that control the oscillation of genes, serving as the wheels and springs of the clock. But, how does a single clock keep time in multiple phases at once? A genome-wide survey found that circadian genes and regulatory elements called enhancers oscillate daily in phase with nearby genes – both the enhancer and gene activity peak at the same time each day.
Thu, 20 Nov 2014 08:21:24 EST
Flu virus key machine: First complete view of structure revealed
Scientists looking to understand – and potentially thwart – the influenza virus now have a much more encompassing view, thanks to the first complete structure of one of the flu virus’ key machines. Knowing the structure allows researchers to finally understand how the machine works as a whole, and could prove instrumental in designing new drugs to treat serious flu infections and combat flu pandemics.
Thu, 20 Nov 2014 08:19:55 EST
Oat oil preparation makes you feel fuller
Oats contain more fat than other cereals, and oat oil has a unique composition. Researchers have now outlined why oat oil supplement makes you feel fuller.
Thu, 20 Nov 2014 08:17:54 EST
New computer model predicts gut metabolites to better understand gastrointestinal disease
The first research to use computational modeling to predict and identify the metabolic products of gastrointestinal (GI) tract microorganisms has been published by researchers. Understanding these metabolic products, or metabolites, could influence how clinicians diagnose and treat GI diseases, as well as many other metabolic and neurological diseases increasingly associated with compromised GI function.
Wed, 19 Nov 2014 15:17:09 EST
Unique sense of 'touch' gives a prolific bacterium its ability to infect anything
One of the world's most prolific bacteria, Pseudomonas aeruginosa, manages to afflict humans, animals and even plants by way of a mechanism not before seen in any infectious microorganism -- a sense of touch.
Wed, 19 Nov 2014 13:27:03 EST
New view of mouse genome finds many similarities, striking differences with human genome
Looking across the genomes of humans and mice, scientists have found that, in general, the systems that are used to control gene activity in both species have many similarities, along with crucial differences. The results may offer insights into gene regulation and other systems important to mammalian biology, and provide new information to determine when the mouse is an appropriate model to study human biology and disease. They may also help explain its limitations.
Wed, 19 Nov 2014 13:24:54 EST
Natural gut viruses join bacterial cousins in maintaining health and fighting infections
Microbiologists say they have what may be the first strong evidence that the natural presence of viruses in the gut — or what they call the ‘virome’ — plays a health-maintenance and infection-fighting role similar to that of the intestinal bacteria that dwell there and make up the “microbiome.”
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