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Tag: "permanently" at biology news

Researchers examine carbon capture and storage to combat global warming

...marts ''The goal of carbon sequestration is to permanently store the carbon dioxide,'' Benson said, ''permanent meaning very, very long-term, geological time periods.'' The greatest concern surrounding carbon dioxide storage is the potential for it to leak, researchers said. The most obvious worry, sai...

Study investigates 'divorce' among Galapagos seabirds

...hows that males of this species are probably never permanently in or out of the mating game, in contrast to many other animals, she said. A male Nazca booby cast off by a current mate may be selected by a different female the next year, after he has had a chance to regain his condition....

Herpes infection may be symbiotic, help beat back some bacteria

...n, less infamous herpes viruses like HHV6 and HHV7 permanently infect most humans without ever producing any significant symptoms. The results have potentially wide-reaching implications for immune research. Humans and other mammals have spent millions of years living and evolving with latent viral infections...

The quest for an effective HIV vaccine presents new possibilities, challenges

...unity to prevent long-term HIV infection may close permanently once a pool of latently infected cells is in place, Drs. Johnston and Fauci note. Neutralizing antibodies, which can attach to and eliminate free virus, only appear after HIV levels have declined substantially. Further, the effectiveness of these ant...

Fighting influenza & co. with 40,000 blood samples

...Barr virus, remains in the body for life and could permanently weaken the body's immune system with increasing age, a theory which is being investigated by RWTH Aachen. ...

Is there a pilot in the insect?

...al behavior can then be understood more exactly by permanently shuttling between biology and robotics. These principles have been tried and tested for millions of years, and today they need to be applied to aerospace, because the phases in which an airship or a space module navigates close to the ground are abs...

Short chromosomes put cancer cells in forced rest

...ers an alternate response where cells simply - and permanently - stop growing, a process known as senescence. In an unusual set of experiments, the research team first mated mice with nonoperating telomerase to mice carrying a mutation that predisposed them to Burkitt’s lymphoma, a rare but aggressive cancer ...

Drug treatment improves learning in mice with Down syndrome symptoms, Stanford/Packard study shows

...vating signals has been achieved, a neuron becomes permanently more sensitive to excitation. Although long-term potentiation has been shown to be impaired or absent in the brains of Down syndrome mice, postdoctoral scholar Wade Morishita, PhD, who works in the Stanford laboratory of professor Rob Malenka, PhD, f...

'Exercise pill' switches on gene that tells cells to burn fat

...PPAR-d, the master regulator of fat metabolism. By permanently turning on this delta switch in mice through genetic engineering, he was able to create a mouse with an innate resistance to weight gain and twice the physical endurance of normal mice. Because they were able to run an hour longer than a normal mous...

Dig deeper to find Martian life

...ch accumulates to the point where the cell becomes permanently inactivated. Mr Dartnell said: "With this model of the subsurface radiation environment on Mars and its effects on the survival of dormant cells we have been able to accurately determine the drilling depth required for any hope of recovering livin...

Gene therapy inhibits epilepsy in animals

...re only suppressing seizures or whether they would permanently prevent epilepsy from developing. "In people, an initial episode of SE or an injury such as severe head trauma is known to raise the risk of later developing epilepsy, so this study suggests that strategies aimed at modifying signaling pathways in ...

Mayo researchers discover HIV dependence on a human protein

... cell's assistance as it proceeds to establish its permanently integrated state is a fascinating question," says .... "It's critical to understand this better because permanently integrated viruses in long-lived cells prevent elimination of HIV. In the future, it will be of inte...

Artificial cornea offers better results for infants, some blind patients

... has been deprived of vision at an early age, it's permanently affected, no matter how well the eye is focused later on. That's why it's crucial to intervene early on." So far in Rochester, approximately 25 infants and children have been outfitted with the Boston device since 2003, including children from Fra...

Researchers discover that sheep need retroviruses for reproduction

...ep. Retroviruses are unique for their ability to permanently insert their genetic material into the DNA of host cells, he said. During evolution of mammals, some retroviruses infected the germline (cells of the ovary and testis that have genetic material that are passed to their offspring) of the host, which ...

Newly discovered behavior in cancer cells signals dangerous metastasis

...sts have believed that cancer cells must transform permanently from stationary epithelial cells into migratory mesenchymal cells in order to metastasize. The Duke team discovered that highly malignant cells are equal parts epithelial and mesenchymal, transitioning between the two as their surroundings necessita...

Study shows pine bark naturally decreases severe chronic venous insufficiency

... said Rohdewald. Continuous stretching from CVI permanently enlarges veins. Past studies have shown that treating edema with Pycnogenol® prevents the development of spider veins. Pycnogenol® also helps prevent existing spider veins from getting larger and more prominent. When edema is successfully treated, th...

Giant deep-sea tubeworm's meal ticket comes in as a skin infection

...estive system. Juveniles swim, hunt, andeat before permanently settling down andtaking up with their microbial partners. Nowthe idea that the larvae acquire theirsymbionts by eating them has beenoverturned. By collecting the giant worms'tiny spawn from traps laid on the oceanfloor, oceanographers have shown that...

Ever-happy mice may hold key to new treatment of depression

A new breed of permanently 'cheerful' mouse is providing hope of a new treatment for clinical depression. TREK-1 is a gene that can affect transmission of serotonin in the brain. Serotonin is known to play an important role in mood, sleep and sexuality. By breeding mice with a...

Chewing up a key regulator of fat synthesis keeps mice lean despite a high-fat diet

...t happened. Mice genetically engineered to express permanently elevated levels of TRB3 protein in fat tissue were 10-20 percent skinnier than normal mice. "Even when we put them on a high-fat diet, these mice just didn't gain any weight," says Qi. "Their physical activity was the same, but they were constantly b...

New MRI technique shows emphysema in asymptomatic smokers

...sema is a chronic, progressive lung disease, which permanently damages the air sacs in the lungs. As the size of the air sacs (or "airspaces") increase, cavities form in the lung tissue, hindering oxygen delivery. According to the American Lung Association, over 3 million people in the United States have been di...

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