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Tag: "shock" at biology news

Clot-busting drug helps revive cardiac arrest patients

...uch as adrenaline, and defibrillation, an electric shock to the heart. "We are in dire need of additional treatment options for sudden cardiac arrest because there is only a 5 percent to 7 percent survival rate using interventions we now have," said Bozeman, associate professor of emergency medicine. "We...

Polynesia explorers created worldwide web of scientific knowledge

..., founded in 1795 in response to broad evangelical shock over Polynesian mores, customs and practices, including a few reports of public copulation. LMS missionaries would construct an independent network of knowledge with its own patrons, informants and audience, and they would bring back "their own eth...

Heart has enough oxygen to survive hypothermia, CPR crucial

... beds (minute blood vessels) and prevent rewarming shock formation," the authors wrote Source and funding "Is oxygen supply a limiting factor for survival during rewarming from profound hypothermia?" by Timofei V. Kondratiev, Kristina Flemming, and Mikhail A. Sovershaev, University of Tromsø, Norway;...

Research reveals inner workings of immune system 'thermostat'

...n, which, if unchecked, can destroy tissue, induce shock and kill the host. So immune system cells let loose another protein compound to cool down the immune response. Precisely how this immune system "thermostat" operates is unclear. The leading hypothesis is that these compounds ?which act as furnace a...

NASA technology helping injured US troops

...h allows joint-like, multidirectional movement and shock absorption. Allen Crane and Wayne Eklund teamed with Kerley in the 1990s to incorporate this "cable-compliant" system into a patented walker that supported the pelvis and imitated hip joint movement, which ultimately alleviated pain to injured patien...

Sandia work launched on space shuttle shows live cells influence growth of nanostructures

...tion of cells without the usual procedures of heat shock or cumbersome puncturing procedures (electroporation) that could result in cell death. Thus, the yeast can be modified to glow fluoresecent green when they contact a harmful chemical or biotoxin. Because such nanostructures are cheap, extremely lig...

Tiny shock absorbers help bacteria stick around inside the body

...eaking loose. "This system is similar to a set of shock absorbers on your car that dampen turbulent forces caused by bumpy road conditions," added study co-author Dr. Wendy Thomas, assistant professor of bioengineering at the UW. The researchers found that fimbrial uncoiling and recoiling events balance...

Researches discover gene critical for protection against septic-shock-induced death

...sed a dramatic increase in mortality due to septic shock in mice. The study's findings, which will be publi... mice subjected to septic peritonitis or endotoxin shock or both. Mice deficient in Nrf2 gene expressed dramatically increased levels of effector molecules (...

Obese people are more sensitive to pain, suggests study

...od-sized device that delivered a slight electrical shock to a patient's sural nerve, a nerve that extends along the ankle and into the calf. This kind of electrical stimulation causes sensations of tingling and mild pain in the lower leg. The researchers determined the body's response to sural nerve stimu...

A step forward in the fight against bacterial infections

...interferons enables the mice to cope with a lethal shock resulting from inflammation, but this small quantity also ensures that immunity is preserved. A next step in combating bacterial infections is to uncover the mechanism behind this reduced production. ...

Mayo Clinic researchers challenge sepsis theory

...ondition in which the body's cells generate fever, shock and often death. Sepsis is thought to occur when poisons from bacterial infection interfere with the cells. The Mayo researchers challenge that long-held concept with a new theory in an opinion piece in the current issue of Trends in Molecular Medic...

Study: Paramedics save more lives when they don't follow the rules

...ating the patient for ventilation and delivering a shock using a defibrillator. While still attaching the victim to a defibrillator, they did not wait for the device to analyze the patient's heart rhythm, but started fast, forceful chest compressions. "Intubating the patient and waiting for the defibrilla...

Protein 'nanosprings' most resilient found in nature

...d open gates, for example, or could perhaps act as shock absorbers in nanomachines of the future." The researchers plan further work to understand what makes the structure of ankyrin repeats so special and to demonstrate the functional role of this structure to particular ankyrin proteins, such as those ...

Lack of a key enzyme dramatically increases resistance to sepsis

...ient mice were resistant to peritonitis and septic shock and were able to clear pathogenic bacteria more efficiently than mice with the enzyme. The presence of caspase-12 also reduced production of several pro-inflammatory cytokines, increasing vulnerability to bacterial infection and septic mortality. ...

Flesh-eating bacteria escape body's safety net

...izing fasciitis ("flesh-eating disease") and toxic shock syndrome. "These findings suggest a novel approach to treating serious Strep infections, such as flesh-eating disease, by assisting our body's own defense system," said senior author Victor Nizet, M.D., UCSD associate professor of pediatrics and an ...

Rice bioengineers pioneer techniques for knee repair

...een the femur and tibia and absorb the compressive shock that the bones undergo during walking and running. Over the past 18 months, he and his students Adam Aufderheide and Gwen Hoben have perfected methods of growing meniscus-shaped pieces of cartilage, but they are still trying to perfect the mechanical...

Antibacterial coatings cut infection rates

...sertion, and have been known to cause anaphylactic shock resulting in death, according to Professor Griesser. Hospitals combat this problem by removing and replacing catheters at frequent intervals, and at considerable cost to the health care system. "Another significant problem caused by bacterial contam...

Molecular research suggest shift needed in how some drugs are created

...e can set the stage for various infections, septic shock and numerous autoimmune disorders. Since researchers at the University of Texas Southwestern in Dallas and the Howard Hughes Medical Institute reported the structure of Pelle bound to the adapter molecule known as Tube, there has been an effort to t...

Gene controls whether fear is a factor

...some fear response by freezing immediately after a shock and later after hearing the tone, knockout mice reacted less strongly, they found, suggesting that they had an impaired ability to learn fear. In other tests, the mutant mice also showed less instinctive fear of open spaces, venturing out into envir...

Anthrax stops body from fighting back, study shows

...he common cold and progress to breathing problems, shock and often death, according to the CDC. But in the 2001 attacks, only half the 10 people who contracted inhalation anthrax died. The five other victims were diagnosed and treated earlier due to quick communication from the doctors who pinpointed the ...

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