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Tag: "changes" at biology news

Ancient retrovirus sheds light on modern pandemic

...e to HIV." For example, the researchers found that changes in TRIM5a that make it better at fighting HIV actually inhibit its ability to stop PtERV1 and vice versa, which indicates that this antiviral gene may only be good at fighting off one virus at a time. Uncovering the story of TRIM5a's role in battli...

Antarctic icebergs -- Hotspots of ocean life

...ms are the preferred food for krill, we expect the changes in phytoplankton community composition to favor grazing as a key biological process involved in carbon sequestration around free-floating icebergs,” said oceanographer Maria Vernet from Scripps Institution of Oceanography at UC San Diego, one of the ...

Putting feelings into words produces therapeutic effects in the brain

...s brain region. Does therapy lead to physiological changes in the right ventrolateral prefrontal cortex" Lieberman, UCLA psychology professor Michelle Craske and their colleagues are studying this question. Combining Buddhist Teachings and Modern Neuroscience After the participants left the brain sca...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...receptor like a ship coming into port. The docking changes the shape of the dock to set off chain reactions i...e messages that over time cause permanent chemical changes in the pathways they travel along, making them more sensitive to pain and encouraging inflammation. ...

Focused ultrasound relieves fibroid symptoms in women

...the targeted fibroids while monitoring temperature changes in tissue. Ninety-six patients were treated under the original study protocol (A), and 64 patients were treated under an optimized protocol (B). Protocol A allowed a maximum treatment time of 120 minutes and a maximum fibroid treatment volume of...

Detecting cold, feeling pain: Study reveals why menthol feels fresh

...ch as inflammatory and nerve injury, and how these changes may contribute to chronic pain," says senior author David Julius, PhD, chairman and professor of physiology at UCSF. The methanol receptor, and other temperature receptors discovered in recent years by the Julius lab, offer potential targets for ...

Better insight into brain anatomical structures

... same principle should allow other disease-related changes or physiological systems to be visualized by using the appropriate antibodies....

'Virtual Patient' to simulate real-time organ motions for radiation therapy

...to accurately predict and monitor these anatomical changes to provide the most effective treatment possible at any given time," Xu said. The fourth dimension of the VIP-Man is not easily achieved, according to Xu. Currently Xu and De are focusing their energy on respiratory function. "Using advanced compu...

Arctic ice retreating more quickly than computer models project

... ice and the models may also fail to fully capture changes in atmospheric and oceanic circulation that transport heat to polar regions. March ice Although the loss of ice for March is far less dramatic than the September loss, the models underestimate it by a wide margin as well. The study concludes t...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...ies, O. lucimarinus and O. tauri, and saw dramatic changes in genome structure and metabolic capabilities. ...ith horizontally transferred genes can account for changes in the cell surface to adapt to different ecological niches." Grigoriev and his colleagues noted th...

Mice with a migraine show signs of brain damage

...to brain cells. As a result of CSD, the team found changes to the synapses, the connections between brain cel...on feels pain or notices a visual disturbance, the changes to the brain are already well underway. To make the finding, the team used a sophisticated laser ...

A cherry on top: Tart cherries may alter heart/diabetes factors

... correlation between cherry intake and significant changes in metabolic measurements suggest a positive effect from the high concentrations of antioxidant compounds called anthocyanins that are found in tart cherries. The new results were given today in an oral presentation at the Experimental Biology 2007 m...

Climate change was the cause of Neanderthal extinction in the Iberian Peninsula

...lations did suffer fluctuations related to climate changes before the first Homo Sapiens arrived in the Iberian Peninsula. Cold, arid and highly variable climate was the least favourable weather for Neanderthals and 24,000 years ago they had to face the worst weather conditions in the last 250,000 years. ...

'Personality-gene' makes songbirds curious

...uals will respond to predictable and unpredictable changes in their environment and how well they cope with t...it should be possible to follow micro-evolutionary changes in populations, which would result from changing selection pressures on different personality types....

How the brain's backup system compensates for stroke

...tional magnetic resonance imaging (fMRI) to detect changes in brain activity. This brain-scanning technique uses harmless radio waves and magnetic fields to measure blood flow in brain regions, which reflects brain activity. The researchers found that the magnetic pulses to the left PMd briefly disrupted ...

Amphibians in losing race with environmental change

...ten exposes them to a wider range of environmental changes than other species must face ?they have permeable ...d 168 species are believed extinct. The impacts of changes are far more pervasive on amphibians than many other vertebrates, such as birds or mammals. "Hist...

Keeping the immune system from starting a 'food fight'

...cumulation of small cellular stresses due to daily changes and fluctuations in nutrients in STAMP2-deficient mice may lead to the activation of inflammatory pathways and inhibition of insulin action, resulting in systemic metabolic deterioration over the long term," he continued....

Traumas like Sept. 11 make brains more reactive to fear

...hat are within a normal range -- may cause similar changes in the brain that traumas do. Victims may experien...a), but they are not severe. However, the kinds of changes that these traumas cause in the brain, the researchers suspect, create vulnerability to developing f...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...hat detects the bacterium by checking for telltale changes in protein expression. Southwick's team used an unusual approach to tease out the anthrax toxin's effects on cell migration: They allowed the immune cells to be hijacked by another bacterium, Listeria monocytogenes. Listeria is often used as a too...

New knowledge improves rice quality

...rtant new opportunities. "These are the two key changes driving the whole process and making this research area so exciting," Dr. Zeigler said. "If we can link these two things together ?our new and improved knowledge and understanding of rice quality with affluent-consumer desires for better rice ?then i...

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Breaking Biology News(10 mins):The Global Watermarking and Fingerprinting Markets 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2
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