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Tag: "was" at biology news

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

...2002, the researchers discovered that the receptor was activated by chemical cooling agents such as menthol, a natural product of mint, and cool air. They reported their discovery, or "cloning," of the receptor in "Nature" (March 7, 2002), hypothesizing that the receptor would play a key role in sensing ...

Better insight into brain anatomical structures

...rokes, and tumors. Furthermore, the Korean team was able to attach antibodies to the manganese oxide nanoparticles. These antibodies recognize and specifically bind to receptors on the surface of breast cancer cells. In mouse brains with breast cancer metastases, the tumors were clearly highlighted by...

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

...idea to take 3-D VIP-Man into the fourth dimension was born. Xu has been working on the 3-D VIP-Man since 1997 using the original Visible Human Project dataset provided by the National Library of Medicine, also funded by several grants from NIH as well as a National Science Foundation CAREER grant. Th...

Philandering female felines forgo fidelity

...ts for the species.” The nine-year study, which was conducted in the Serengeti National Park of Tanzania, focused on determining the paternity of cheetahs through the use of fecal samples that were then subjected to genetic testing. By comparing individual genetic micro-satellites from 171 samples, re...

Moths mimic sounds to survive

...c mimicry as a defensive strategy. The research was conducted by Jesse Barber, a doctoral student in b...ed a second sound-producing species even though it was not chemically protected. This is similar to the way birds avoid butterflies that look like the bad-...

An 'elegant' idea proves its worth 25 years later

...and lo and behold, they wake up—just like that. It was just astonishing," he says. "His elegant idea was to give patients chemicals they already make in small amounts in large doses to make up for the miss...

Human stem cell treatment restores motor function in paralyzed rats

...ined no stem cells. The recovery of motor function was evaluated in seven-day intervals, showing a progre...ture neurons, according to Marsala. A second study was conducted over a three-month period, with similar results. “Other human stem cell transplants in ...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

...e, between 2001 and 2005. Funding for the research was provided by private donors Roberto Chavez, Steve D... the nudibranchs that distinguish species. This was part of the formal project “Phylogenetic Systematics of Nudibranchia,” sponsored by a National Scien...

Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?

...topped in the United States in 1971, and the world was declared free of smallpox in 1980. But because of ...nd Drug Administration (FDA) licensed vaccine that was used to protect humans against smallpox disease. In this study, the Dryvax® vaccine is being used a...

Hawaiian treasure, macadamia nuts good for the heart

...ping and in cookies and muffins. "The total fat was the same in both diets," says Griel. "We substitut... first commercials crop of Hawaiian macadamia nuts was harvested in 1956. ...

Arctic ice retreating more quickly than computer models project

...online edition of Geophysical Research Letters. It was led by Julienne Stroeve of the NSIDC and funded by... rate of September retreat in any individual model was 5.4 percent per decade. (September marks the yearly minimum of sea ice in the Arctic.) But newly ava...

Resistant HIV quickly hides in infants' cells

...ch an attack that NNRTIs could not stop. The news was not all bad: a different class of antiretroviral drugs, protease inhibitors (PIs), was effective in controlling HIV viral load and NNRTI-resistant virus strains for all infants studied. ...

Statin treatment improves spatial memory in mouse models of Alzheimer's

...em a chance to learn how to reach a platform. Food was always available and safety makes taken during the... on saline. After the maze test, brain tissue then was studied to determine levels of nNOS....

Early exposure to indoor fungus molecules may protect infants against future allergies

...damage. Environmental and food allergy development was monitored through annual skin prick tests. Scientists say early-life exposure to common microbial components—like bacterial endotoxins and fungal glucans—can stimulate the body’s immune system to produce infection- and allergy-fighting substances....

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...applications in bioengineering," said Palenik. "It was particularly interesting to see the predicted use of selenium-containing enzymes as one of the tricks to maintain such tiny cells. There are many mechanisms that can account for species formation in photosynthetic phytoplankton, and this is just one...

Mice with a migraine show signs of brain damage

... developed imaging technologies, Nedergaard’s team was able to get an unprecedented look at the events th...rise.? Deborah Friedman, M.D., a neurologist who was not involved in the study, says that a few studies have found that people who get auras with their m...

How to look at dinosaur tracks

... Geologists also must account for whether the step was taken on a sloped surface or on a horizontal surface, and whether it was taken during dry season or wet season. For example, estimating foot length from tracks can be in...

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

... liver and pancreas, its function in muscle tissue was unknown. Then, the researchers noticed that mice l... place, expression of muscle-specific target genes was also reduced. Conversely, when the researchers boosted SIK1 levels or inhibited HDAC activity with a...

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

...ies or 10 percent cherries. The higher cherry dose was used to look for any toxic effects; none were seen...f the rats that did not receive cherries. The same was true for those on the 10-percent cherry diet, compared with rats that received a diet with an equiva...

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

... During the last Ice Age, the Iberian Peninsula was a refuge for Neanderthals, who had survived in loc... 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 weathe...

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