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Tag: "attacks" at biology news

'Mad cow' proteins successfully detected in blood

...l cells grow unaffected." Well before the anthrax attacks of 2001, scientists at USAMRIID and the CDC recognized the need for an FDA accepted method for identifying B. anthracis in clinical specimens. In 2002, FDA's Division of Clinical Laboratory Devices agreed to recognize tests for B. anthracis as eligib...

Anthrax test, developed by army and CDC, receives FDA approval

...l cells grow unaffected." Well before the anthrax attacks of 2001, scientists at USAMRIID and the CDC recognized the need for an FDA accepted method for identifying B. anthracis in clinical specimens. In 2002, FDA's Division of Clinical Laboratory Devices agreed to recognize tests for B. anthracis as eligib...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

...h vibrational differences, hatching early to snake attacks but not to rain At the edge of Ocelot Pond, Panama, red-eyed tree frog embryos still in their eggs are about to make a life-or-death decision. The egg clutch, a gelatinous blob clinging to a leaf overhanging the water, has been spied by a bright gre...

FDA approves more generic AIDS drugs

...surprise while investigating how plants respond to attacks from disease organisms such as bacteria and viruses. "Contrary to what we thought we'd find, our experiments showed that at least three different proteins work in concert with one another in tug-of war or teeter totter-fashion to keep plant defenses...

UNC plant researchers discover proteins interact to form hair-trigger protection against invaders

...surprise while investigating how plants respond to attacks from disease organisms such as bacteria and viruses. "Contrary to what we thought we'd find, our experiments showed that at least three different proteins work in concert with one another in tug-of war or teeter totter-fashion to keep plant defenses...

Morphine for Chest Pain Increases Death Risk

...ed to relieve the chest pain associated with heart attacks in 1912 and has been used regularly ever since. Nitroglycerin has been used for more than 130 years for the relief of chest pain, also known as unstable angina. It works by relaxing blood vessels and allowing blood flow to increase. "Nitroglycerin h...

Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine

... a dye to stain those cells green. When Y. pestis attacks a cell it uses the type-III pathway -- a needle-like projection -- to inject various toxins into the cell, killing it. The researchers endowed these bacteria with an additional enzyme, which the microbes also injected in cells. This enzyme can snip t...

Stem cell treatment improves mobility after spinal cord injury

...colleagues identified how the body's immune system attacks and destroys myelin during spinal cord injury or disease states. They also have shown that when treated with antibodies to block immune system response, myelin is capable of regenerating, which ultimately restores sensory and motor activity. Oswald ...

FDA Approves New Treatment for Chronic Hepatitis B

...disease caused by the hepatitis B virus (HBV) that attacks the liver. The virus can cause lifelong infection, cirrhosis (scarring) of the liver, liver cancer, liver failure, and death. According to the Centers for Disease Control and Prevention, approximately 1.25 million Americans are chronically infected w...

Agilent Technologies introduces advanced zebrafish, mouse microarrays for stem cell and developmental biology research

...ergic reaction to eating peanuts. Despite several attacks in Florida recently - one that killed a 14-year-old girl - shark attacks remain very rare when you put it all into perspective, McEachran believes. "There are millions of p...

New HIV drug candidate developed in Sweden

...ergic reaction to eating peanuts. Despite several attacks in Florida recently - one that killed a 14-year-old girl - shark attacks remain very rare when you put it all into perspective, McEachran believes. "There are millions of p...

Shark attack worries? Driving to the beach is more deadly

...ergic reaction to eating peanuts. Despite several attacks in Florida recently - one that killed a 14-year-old girl - shark attacks remain very rare when you put it all into perspective, McEachran believes. "There are millions of p...

Disabling gene defuses rheumatoid arthritis in mice

...e thought the cells that were most active in these attacks were adaptive immune cells including T cells. Most of these cells are like guided missiles: they get a fix on a specific target, pursue it and attack it. "Classically, everyone thought that the T cells somehow recognized something specific in the jo...

Columbia study shows widely used artery clearing device does not help patients during heart attack

...nt. The study also measured the size of the heart attacks by measuring the uptake of a tracer in the heart, and found that there was no difference for patients who received distal protection. According to Dr. Stone, not using distal protection devices will reduce the cost of angioplasties during heart atta...

UCLA study assesses cost-effectiveness of Hepatitis B drugs

...on serious liver infection in the world. The virus attacks liver cells and chronic hepatitis B disease can lead to liver failure, cirrhosis or cancer of the liver. About 90 percent of healthy adults who are infected with Hepatitis B recover with no problems, but 10 percent develop chronic disease. In childre...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

...une conditions where the immune system erroneously attacks healthy tissues. Such disorders include rheumatoid...to our own proteins, potentially leading to T cell attacks on the self," says Unanue. Unanue and colleagues, who publish their results on May 31 in the Procee...

A little stress gives beneficial oomph! to immune system

...oriasis. In autoimmune diseases, the immune system attacks the body. "Understanding mechanisms that mobilize leukocytes to potential battle stations during stress could help us figure out ways to boost the immune response when it could be most helpful to do so, such as during surgery, vaccination or infecti...

What's really making you sick? Plant pathologists offer the science behind Sick Building Syndrome

...s typically associated with SBS range from allergy attacks and asthma to more complex medical problems involving exposure to toxins. Mold is a common cause of SBS, said Mani Skaria, Ph.D, plant pathology professor and interim chair of the Department of Agronomy and Resource Sciences, Texas A&M Universit...

Roots Engage in Underground Chemical Warfare

...n antimicrobial agents that ward off the continual attacks by soil pathogens. The work is published in the March 10 issue of the journal Nature. The exudates from Arabidopsis roots kill a wide range of bacteria, confirming that roots are not always vulnerable, anchored targets. The natural production of th...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...for humans, but young elephants are susceptible to attacks by lions and hyenas. When a predator appears, older members of the herd emit intense warning calls that prompt the rest of the herd to clump together for protection and then flee the scene. In 1994, O'Connell-Rodwell recorded the dramatic cries of a...

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