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Tag: "shock" at biology news

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...ase progresses rapidly and patients often die from shock before they realize they have more than a common cold. The current method of detecting anthrax relies on lab cultures that can take days to complete. "We're looking for approaches to detect anthrax earlier in the blood," said Russell During, Ph.D....

Study offers clues to 'Broken Heart Syndrome'

...e it is often preceded by an emotional or physical shock of some kind and almost always strikes women. One thing is certain: Patients are usually critically ill during the first 48 hours. "These patients can be difficult to manage for emergency physicians and cardiologists alike," said cardiology fellow...

Dinosaur hearing, listening to muscle noise, quieter cubicles

... instruments and a "ping-pong cannon" that creates shock waves as it shoots balls at high speeds. On Tuesday afternoon, Bill Strong of Brigham Young University ( william_strong@byu.edu ) will present a mini-concert on yodeling, by expert yodeler Kerry Christensen, who will demonstrate alpine, classical, a...

Row over study puts Korea's scientific community under scrutiny again

...uding Sook Hwan Lee. But his surprise turned to shock when, in December 2005, he saw a similar paper in Fertility and Sterility. He was even more shocked to see that the number of authors had reduced to six and that he was no longer one of them. The lead author was Dr Cha. In December last year, Dr K...

Mutation improves memory, may lead to memory-enhancing pill

...nimals are put into a cage followed by a mild foot shock or are exposed to a tone paired with a foot shock. Their memory for the earlier bad experience is determined based on how much they freeze in response to the "scary" place or sound 24 hr later. Importantly, the researchers also showed that treatme...

Scripps research study shows humans and plants share common regulatory pathway

... responses." The study also showed that a heat shock protein, HSP90, helped stabilize Nod1. "Inhibiting HSP90 resulted in a significant reduction of Nod1 protein levels," Ulevitch said. "That clearly suggests that this protein plays a key role in stabilizing Nod1 and protecting it from degradation....

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

...ibrillators, the expensive devices are designed to shock damaged hearts back into rhythm and save patients from sudden cardiac death, which kills 300,000 Americans each year. But a new study finds that while many of these patients will benefit from their ICDs, a large number won't -- and a simple heart-rh...

Mechanisms involved with tumor relapse identified

... created. This vaccine formulation combines a heat shock protein 110 (HSP110), as an adjuvant, with a tumor antigen HER-2/neu, as a protein target expressed in breast tumors. Adjuvants are agents that are able to modify another agent ?basically working as a chemical catalyst. ...

MIT: Pulsing light silences overactive neurons

...zure is about to occur, allowing treatment (either shock or light) to be administered only when necessary, Boyden said. The technique also offers a way to study other brain diseases, as well as normal brain circuitry, offering insight into which brain regions and neurons contribute to specific behavior...

New insights into autoimmunity and depression

... to measure the ability of mice to remember a foot shock delivered 24-hours earlier. Depression-like behavior was strongly observed in the performance of anti-ribosomal P antibody-injected mice on the forced swimming test. The immobility time of these mice was twice as high as that of the control grou...

New approach could lower antibiotic requirements by 50 times

...e UK every year. MRSA infection can lead to septic shock and death. ...

It's in your head: The brain's own globin defends you from shock and stroke

The next generation of treatments for shock or stroke could be based on a protein that is already in our heads ?neuroglobin. In a review article to be published in the November issue of The FASEB Journal, scientists from University of Rome describe this protein, which may be the key to unlocki...

Unique gene regulation gives chilly bugs survival advantage at bottom of the world

...in ice. All animals, including humans, make heat shock proteins, but normally they only do so during times of extreme physical stress. Curiously, adult midges don't express these proteins all the time ?only during periods of extreme environmental stress. Yet when most insects express stress proteins, it ...

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

...s and lead to widespread infection (sepsis), toxic shock syndrome and flesh-eating pneumonia. It is not known why some healthy people develop CA-MRSA skin infections that are treatable whereas others infected with the same strain develop severe infections or die. Scientists had recognized a connection b...

Proteins necessary for brain development found to be critical for long-term memory

...ells in the reflex circuit normally induced by the shock treatment was also blocked. "We would never have expected that the secretion of these growth factors in response to serotonin would be critical for long-term memory formation in this system," Carew said. "But it is apparent that without them, this ...

Worms produce surprise insight into human fever

...eath under certain stresses. The other was a heat shock transcription factor-1 (HSF-1) pathway, which is e...own. The activation of the HSF-1 pathways by heat shock and its function in C. elegans immunity provides both a molecular explanation for the beneficial ro...

Tiny bones rewrite textbooks

...ntral Otago region of South Island. But the real shock to scientists was that it was there at all: until now, decades of searching had shown no hint that furry, warm-blooded animals had ever trodden on New Zealand soil, despite them having thrived so widely in other lands. The fact that even one land m...

Researchers use multiphoton microscopy to watch chromosomes in action

...The process is triggered by a molecule called heat shock factor (HSF), which interacts with genes to cue the synthesis of new proteins. But this well-known process had never been seen in living cells. Yao used multiphoton microscopy (MPM) to image living salivary gland tissue of Drosophila (fruit flies...

When nerve cells can't make contact

... in affected patients. Bourgeron' TM s work sent a shock wave through neuro-scientific institutes worldwide, as the a NLGN genes were not unknown. They are responsible for the creation of two proteins, neuroligin-3 and neuroligin-4, which are considered to play an important part in the structure of nerve c...

New finding points way to foiling anthrax's tricks

...ly in the lungs, leading to breathing problems and shock within days. While a vaccine is available, there is no effective treatment. The bacteria succeed by forming capsules that invade lung cells, then capturing iron in order to reproduce, and finally, manufacturing a toxin that kills the cells and rel...

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