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Tag: "faster" at biology news

Immune system has evolved to prevent autoimmune disease

...The upshot would be an immune system that responds faster and more effectively against disease."This should help us get well faster, so the question becomes, 'Why didn't we evolve that kind of adaptive response?'" Deem said. Deem's analysis falls within a branch of physics called statistical mechanics, whi...

Scavenger cells could be key to treating HIV-related dementia

...amages. Because the virus mutates nearly 100 times faster in the temporal lobe than other parts of the brain...hages to the temporal lobe. The virus mutates much faster there, the macrophages keep accumulating and keep creating this inflammation that leads to dementia....

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...isease," says Dumler. "Our next step is to develop faster and more reliable tests to detect the disease so that physicians can more readily make a diagnosis and begin treatment as early as possible." Initial treatment for adults, he says, involves immediate, twice daily 100-milligram doses of the oral anti...

Mosquito study shows new, faster way West Nile can spread

...involved, and transmission could be happening much faster because you don't have to wait for a high viremia." ...

Gaining ground in the race against antibiotic resistance

...eria, as scientists try to develop new antibiotics faster than the bacteria can evolve new resistance strategies. But now, researchers have a new strategy that may give them a leg up in the race -- reproducing in the lab the natural evolution of the bacterial enzymes that confer resistance. A team of scie...

Muscle repair: Making a good system better, faster; implications for aging, disease

...tion and accelerated muscle repair associated with faster increases in proteins such as the myogenic transcription factor MyoD. "In other words, we observed accelerated repair over and above what is already a naturally efficient system," lead author Timothy J. Koh of UIC said later. The study, entitled "Mi...

Geckos: It's not always about sex

...s, these "Wonder Woman" geckos can run farther and faster than their sexually reproducing relatives. The research findings are published in the journal Physiological and Biochemical Zoology (Vol. 78, 3, May/June 2005) by Michael Kearney, Rebecca Wahl and Kellar Autumn. "This is extraordinary," said Autumn,...

Deep sea buffet for bone-devouring worms

...may weigh up to 50 tons), approximately 2000 years faster than the usual mechanism of carbon deposition to the deep seafloor. The results of this study will aid understanding of the potential for adaptation between animals and microbes. ...

Squeezing out dune plants

...ate change," say the researchers. All this means faster erosion and less protection for the people, animals, and buildings on Galveston Island. ...

MERIS monitoring tracks planetary photosynthesis levels

...ng one computer can do, a pool of computers can do faster and better. These machines do not have to be in the same building, country or even continent ?they simply have to be linked together. A Grid provides its user with massive amounts of memory and processing power in order to tackle very complex tasks. ...

AIDS expert says global strategy needed to combat feminization of HIV/AIDS

...ally societal changes will help, but immediate and faster action requires coordinated efforts to focus on women, develop effective microbicides that women can use themselves and a gender-specific vaccine program that takes into account the different immune responses between women and men. Cultural programs...

Mechanism regulating tooth shape formulation found

...e to induce cusps and mineralization of teeth much faster than happens in normal mouse teeth, suggesting that tinkering with the balance of cusp induction may hold potential for future tissue engineering of hard tissues. ...

Elderly mice yield clues to the process of growing old

...ss and atrophied muscle and bone -- at a pace much faster than the typical laboratory mouse. "It's like a broken spellchecker," says Prolla. "By introducing a malfunction in the (genetic) proofreading domain, these mutations accumulate much more rapidly." The new work lends support to one of the two leadi...

Structures of marine toxins provide insight into their effectiveness as cancer drugs

...plains Allingham. "Because cancer cell masses grow faster than other cells in the body, actin provides an excellent target for drugs that could inhibit such rapid growth." Adds Allingham: "These marine toxins can knock out the lynchpins in these long chains or cap their ends and kill cancer cells. Moreov...

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

... paying attention, then you should shift your gaze faster if the box appears in the direction in which that monkey face was looking and slower in the other direction. Which is exactly what we found with both humans and monkeys.' Thus, he said, the subjects were 'covertly' shifting their attention before obv...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

...alled dobutamine to make the heart work harder and faster for 30 minutes. "During the stress test, 40 percent of the untreated mdx mice progressed to cardiac failure," says DeWayne Townsend, D.V.M., Ph.D., a post-doctoral fellow and co-first author of the study. "Even those that didn't reach the threshold ...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

... on the road," he pointed out, "it means he can go faster and get more guys off his wheel." Effect of cancer, therapy nil The period that started when Armstrong was 21 and just turning professional and ending at age 28 with his first TdF victory, also included his cancer diagnosis, surgery, chemotherapy a...

Beetle-inspired switch uses water for bonding

...droplets will require less energy to move and have faster switching times. Steen and his colleagues believe that a switch as small as hundreds of nanometers, close to a billionth of a meter and one-tenth the size of the beetle droplets, is within reach. Researchers could also create large effects from many ...

New clue to cocaine addicts' quirky behavior

...sitized rats learned the correct response strategy faster than normal rats, they were significantly less able to change strategies when they were required to ignore the cue and always make a left or right turn to receive the reward. "Thus, although abnormally induced LTP by psychostimulants at limbic input...

Divergent life history shapes gene expression in brains of salmon

...since these fish essentially trade bodily size for faster reproductive maturity," she says. "However, it was unexpected, for instance, that genes associated with learning and memory would be expressed at higher levels in the brains of sneakers. It's not yet clear why disparities like this would arise." Aub...

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