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Microbiology News
Fri, 19 Jan 2018 19:03:55 EST
Cells lacking nuclei struggle to move in 3-D environments
A study examined the role of the physical structure of the nucleus in cell movement through different surfaces.
Fri, 19 Jan 2018 09:02:37 EST
Hunting dogs as possible vectors for the infectious disease tularaemia
Tularaemia is an infectious bacterial disease that is life-threatening for rodents, rabbits and hares, but which can also infect humans and dogs. While contact with contaminated blood or meat makes hunters a high-risk group, the frequency of infections among hunting dogs has not been much studied. Researchers have now confirmed a relevant prevalence of infections in Austrian hunting dogs following a serological study in which seven percent of the animals tested positive. This could lead to more intense debate as to whether the often asymptomatic animals represent an additional risk of infection for people.
Thu, 18 Jan 2018 16:24:49 EST
Researchers create first stem cells using CRISPR genome activation
In a scientific first, researchers have turned skin cells from mice into stem cells by activating a specific gene in the cells using CRISPR technology. The innovative approach offers a potentially simpler technique to produce the valuable cell type and provides important insights into the cellular reprogramming process.
Thu, 18 Jan 2018 14:27:35 EST
Certain flu virus mutations may compensate for fitness costs of other mutations
Seasonal flu viruses continually undergo mutations that help them evade the human immune system, but some of these mutations can reduce a virus's potency. According to new research, certain mutations in the genome of influenza A may help counteract the weakening effects of other mutations.
Thu, 18 Jan 2018 14:27:28 EST
First global atlas of the bacteria living in your dirt
What lives in your dirt? Researchers are one step closer to finding out after compiling the first global atlas of soil bacterial communities and identifying a group of around 500 key species that are both common and abundant worldwide.
Thu, 18 Jan 2018 14:27:23 EST
Packing a genome, step-by-step
For the first time, scientists can see in minute-time resolution how cells package chromosomes into highly condensed structures prior to cell division.
Thu, 18 Jan 2018 14:27:01 EST
A new, dynamic view of chromatin movements
In cells, proteins tightly package the long thread of DNA into pearl necklace-like complexes known as chromatin. Scientists now show for the first time how chromatin moves, answering longstanding questions about how its structure helps regulate gene expression.
Thu, 18 Jan 2018 14:26:45 EST
Protein designed entirely from scratch functions in cells as a genuine enzyme
Artificial biology is working toward creating a genuinely new organism. Researchers are designing and building proteins that can fold and mimic the chemical processes that sustain life. Now they have confirmed that at least one of their new proteins can catalyze biological reactions in E. coli, meaning that a protein designed entirely from scratch functions in cells as a genuine enzyme.
Thu, 18 Jan 2018 14:26:18 EST
Scientists find microbes on the skin of mice promote tissue healing, immunity
Beneficial bacteria on the skin of lab mice work with the animals' immune systems to defend against disease-causing microbes and accelerate wound healing, according to new research. Researchers say untangling similar mechanisms in humans may improve approaches to managing skin wounds and treating other damaged tissues.
Thu, 18 Jan 2018 14:26:08 EST
Zika virus damages placenta, which may explain malformed babies
New researcher shows how Zika virus infection in five pregnant rhesus monkeys caused placental tissues to become thickened and inflamed, resulting in less oxygen being transported across the placenta and to the baby.
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