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Tag: "allows" at biology news

Nerve cell software keeps track of brain change

...cells photographed down a microscope. HCA-Vision allows researchers to reliably measure significant features of cells' appearance as they change in response to drugs, biochemicals or diseases like dementia. "Benchmarking studies have shown that the software can do this one hundred times faster than a pe...

For crickets, parasitic flies can stop the music

... the complete absence of parasitic flies in spring allows the researchers to examine the role of flies as a selective pressure on male singing and female mate choice behavior. That said, not all of the findings were clear-cut. Although fewer males sing in the fall, for example, the ones that sing do so f...

Boston University biomedical engineers win major grant for pursuit of the '$1,000 Genome'

...ified by a florescent marker attached to it, which allows the researchers to record the sequence of bases as the strand emerges from the nanopore. Meller has devised a system of lasers and highly sensitive detectors which greatly increase the process' resolution. He is the only researcher in the world using...

Researchers discover key mechanism by which lethal viruses Ebola and Marburg cause disease

...Immunosuppression occurs early after infection and allows the viruses to reproduce rapidly and cause disease. "Currently, there is no way to treat most viral hemorrhagic fever outbreaks, and increased international travel, trafficking in wildlife, political instability, and terrorism have made emerging in...

HIV exploits competition among T-cells

...ompetition among the human immune system's T cells allows the virus to escape destruction and eventually develop into full-blown AIDS. The study, which employs a computer model of simultaneous virus and immune system evolution, also suggests a new strategy for vaccinating against the virus ?a strategy that ...

World-wide warning of highly drug-resistant tuberculosis

...esistance to drugs. Where HIV rates are high, this allows particularly rapid spread of the disease within hospital settings and the community. Dr Lawn says several responses to this problem are required including urgent assessment of the scale of the problem and an increase in laboratory capacity. "D...

Caterpillars tell us how bacteria cause disease

...echnique known as Rapid Virulence Annotation (RVA) allows them to pinpoint the genes which code for virulence. With millions of species worldwide, insects provide a massive pool of hosts for bacterial diseases. The immune system of insects is very similar to the inborn immune system of mammals. By living f...

A natural chemical found in strawberries boosts memory in healthy mice

...ientists call "long-term potentiation" or LTP. LTP allows memories to be stored in the brain by strengthening connections between neurons. "We wanted to find out whether we could detect any effects of fisetin on long-term potentiation and the formation of memories in animals," Maher recalls. Since the hip...

Experimental vaccine protects mice against deadly 1918 flu virus

... the surface protein found in all flu viruses that allows the virus to stick to a cell and cause infection. The researchers created two types of plasmids: one to reflect the HA found in the original 1918 flu virus; the other an altered HA protein designed to attenuate (weaken) the virus. Mice were then i...

Two-faced protein can stop metastasis or promote it, researchers say

...shift between E-cadherin and mesenchymal cadherins allows cancer cells to break away from tissue and spread. They found that p120 "prefers" to bind to E-cadherin, rather than to mesenchymal cadherins. So in normal epithelial cells p120 always associates with the more abundant E-cadherins. But when E-cadhe...

Proteins anchor memories in our brain

...rated by random gene rearrangements. This strategy allows the receptors to recognize the tremendous diversity of invading pathogens. In the process, however, they also develop receptors that bind to the body's own proteins. These T cells are normally eliminated, avoiding the plague of autoimmunity. A cl...

Autoimmune disease triggered if T cells miss a single protein early on

...rated by random gene rearrangements. This strategy allows the receptors to recognize the tremendous diversity of invading pathogens. In the process, however, they also develop receptors that bind to the body's own proteins. These T cells are normally eliminated, avoiding the plague of autoimmunity. A cl...

Reading Shakespeare has dramatic effect on human brain

... as a verb. Researchers found that this technique allows the brain to understand what a word means before it understands the function of the word within a sentence. This process causes a sudden peak in brain activity and forces the brain to work backwards in order to fully understand what Shakespeare is t...

Bacteria that use radiated water as food

...ting from uranium minerals in or near the fracture allows for the formation of hydrogen gas from decomposition of water and formation of sulfate from decomposition of sulfur minerals. Hydrogen gas is highly energetic if it reacts with oxygen or other oxidants like sulfate, as the Hindenburg disaster demonst...

Critical hearing gene helps send auditory messages to brain

...nd auditory nerve endings. That chemical release allows nerve messages to be passed from one neuron to another. In inner hair cells, those neurotransmitter-filled vesicles are held in place at the cell membrane by tethers known as "ribbons." The current study follows up a report by Petit's team several ...

'Nymph of the sea' reveals remarkable brood

...l brood care in the invertebrate fossil record, it allows gender to be determined in an animal as old as the Silurian period of geological time, and indicates a remarkably conserved egg brooding reproductive strategy."...

Coral reefs are increasingly vulnerable to angry oceans

...imate. "The predictive tool we have developed allows managers to assess the vulnerability of their reefs to extreme wave events," said Madin. "The ability to estimate the potential damage on a reef for different disaster scenarios could help managers plan for economic losses as well as promote strategi...

Intrinsic eye protein halts angiogenesis

... vessels to enter the cornea. Knocking down SFLT-1 allows angiogenesis to take hold." The next step, according to the researchers, is to test SFLT-1 in other areas of the body, encouraging tissues to produce the protein on their own. "We want to know what it is in the cornea that produces so much of thi...

Buildup of damaged DNA in cells drives aging

...g. The authors speculate that this stress response allows each of us to live as long and as healthy a life as possible despite the accumulation of genetic damage as we age. Findings from this study help to reconcile two conflicting hypotheses currently favored in the field of aging research about why we ...

A new understanding of how cells defend themselves against bacterial pore-forming toxins

...tter understanding of the biochemical pathway that allows epithelial cells to survive an invasion by a pore-forming toxin will prove valuable as biomedical researchers try to develop drugs to fight antibiotic-resistant strains of bacteria that use these toxins as part of their hijacking strategy. ...

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