Tag: "protective" at biology news

New understanding of the machinery of flinching

The flinch is a critically important protective mechanism by which animals and humans instantly pr...ng of the upper lip, flattening of the ears, and a protective arm and shoulder movement. Flinching consists of two phases--an initial, general startle response, ...

Putting energy into heart protection

...sms for energy in the heart and plays an important protective role during and after a heart attack. The identification of novel AMPK targets and/or the possible use of AMPK activators may be useful in providing therapy for healing during or after a heart attack. A related commentary in this issue by D. Graham...

JCI table of contents, 16 August, 2004

...sms for energy in the heart and plays an important protective role during and after a heart attack. The identification of novel AMPK targets and/or the possible use of AMPK activators may be useful in providing therapy for healing during or after a heart attack. A related commentary in this issue by D. Grahame...

Protective gene may enhance vaccine responses

...five times as many memory T cells. "Drugs based on protective factors such as Spi2A could provide an enormous boost to vaccines," said study author Philip Ashton-Rickardt, professor of pathology and a member of the committee on immunology at the University of Chicago. "This could allow us to extend the duratio...

Schizophrenia gene variant linked to risk traits

...ists think the less common 'G' variant may exert a protective effect against the disease. People with schizophrenia and their healthy siblings share the inefficient brain physiology, and cognition patterns, which suggests a link to genetic risk, though the disease itself is most likely caused by a combination o...

Protein vaccine fully protects mice from lethal aerosol challenge with ricin toxin

...n vaccine suggested that isolated RTA could induce protective immunity against the toxin in animals. However, us...in stability, and maintain its ability to elicit a protective immune response. In the August online issue of Protein Engineering, Design and Selection, Olson a...

Study: Mothers turn fearless when peptide level drops

...cage, some moms would just sit there. They weren't protective at all. If anything they were skittish. They showe...u don't keep them low, you won't see this fiercely protective behavior." He adds that this finding - some of the first evidence suggesting a biological mec...

Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice

...s. The quantum dots were encapsulated in a highly protective polymer coating and attached to a monoclonal antib... dots, made from cadmium selenide, within a highly protective coating called an ABC triblock copolymer, and over-coated the particle-polymer composite with poly (...

Good bacteria trigger proteins to protect the gut

...vercome by administering substances that mimic the protective presence of gut bacteria. The findings may also re...meostasis of intestinal epithelium, which confer a protective effect on these cells and induce tissue repair." According to Medzhitov, TLRs may work both by a con...

Nature mimics industry

...d to the reef, they can't swim and they don't have protective shells or teeth, so they biosynthesize chemicals for defense, many of which contain halogen due to the ocean's high salt content." Sponges and other marine organisms produce a variety of bromine-based organohalogens, which repel predatory fish and pr...

Mapping the evolution of a virus

... worldwide each year. Although antibodies provide protective immunity to influenza virus infection, the antigenic structure of proteins that stimulate immune responses changes significantly over time, a process known as antigenic drift, so in most years the influenza vaccine has to be updated to ensure suffici...

Researchers in UGA Vet School discover a mechanism that blocks replication of a retrovirus

...bstitution in a protein that comprises the virus's protective shell. Other scientists have reported endogenous retroviruses that interfere with infective retrovirus replication at different points in early states of the cycle specifically by blocking entry to the host cell or blocking before insertion of vira...

Impact of Earth's rising atmospheric carbon dioxide found in world oceans

... scientists have seen a reduced ability to produce protective calcium carbonate shells in many species of marine organisms at high CO 2 levels, including corals and plankton, drifting plants and animals on which other marine life feeds. "Based on our present knowledge, it appears that as seawater CO 2 levels...

Story tips from the Department of Energy's Oak Ridge National Laboratory, July 2004

...nto electricity. ORNL developed and fabricated the protective cladding, iridium alloy clad vent sets, to encapsulate the fuel. The iridium alloy "clad vent sets" are resistant to heat and impact and are designed and tested to remain intact even during an unplanned reentry during the spacecraft's 1997 launch or ...

JCI Table of Contents, 15 July 2004

... this is the case, then apoA-IV should likewise be protective in other diseases resulting from inflammatory reac...University Health Sciences Center investigate such protective properties of apoA-IV in a mouse model for human ulcerative colitis. By feeding mice with a heparin...

Oxygen sensing in worms may hold key to healthy blood pressure in humans

... gives them a selective advantage; perhaps it is a protective response against levels of oxygen that would be damaging to the worms or would shorten their lifespan. This same mechanism should also be present in fish and other animals that live in environments where the oxygen levels fluctuate. It may also be si...

Warren Pharmaceuticals publishes results of preclinical evaluation

...od brain barrier opened the way for development of protective compounds that can safely be administered by injec...es the clinical need for non-erythropoietic tissue protective compounds, especially for chronic treatment of neurological and psychiatric conditions. She writes:...

Tracing a killer's path in Lou Gehrig's disease

...ron shed light on how a mutant form of a normally protective protein in the cells of sufferers of amyotrophic lateral sclerosis targets the "power plants" of motor neurons, killing the neurons and ultimately resulting in paralysis and death. The culprit is a mutant form of the enzyme superoxide dismutase (SOD1...

Crystal structure for anthrax-cell binding complex

...r. Anthrax toxin is comprised of three proteins: protective antigen (PA), lethal factor (LF), and edema factor (EF). To gain entry into host cells, PA must recognize a receptor on the surface of the target cell. Once PA has bound to the cell, it then enables EF and LF to bind and form a pore through which P...

Tips from the journals of the American Society for Microbiology

...together gives an antibody response that is highly protective in the mouse," say the researchers. "Thus, these antigens are promising candidates for an effective and safe vaccine against strangles."(M. Flock, K. Jacobsson, L. Frykberg, T.R. Hirst, A. Franklin, B. Guss, J.I. Flock. 2004. Recombinant Streptoco...

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