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Tag: "with" at biology news

Philandering female felines forgo fidelity

...ve found that, in cheetah society, it’s the female with the wandering eye, as reported in a paper in the l...ers found that about 43 percent of cheetah litters with more than one cub were fathered by more than one male, revealing a mating system that deviates from ...

Lessons from the orangutans: Upright walking may have begun in the trees

... the animals also tended to grip multiple branches with their long toes. On medium-sized branches, the ...ranches. They could have gripped multiple branches with their toes and distributed their center of gravity more effectively, while keeping one or both of th...

Moths mimic sounds to survive

In a night sky filled with hungry bats, good-tasting moths increase their cha...st offered to them, associating the warning sounds with bad taste. They then avoided a second sound-producing species even though it was not chemically pro...

An 'elegant' idea proves its worth 25 years later

...ogen has saved an estimated 80 percent of patients with urea cycle disorders --- most of them children – a...dicine summarizing a quarter century of experience with the treatment. The effectiveness of sodium phenylacetate and sodium benzoate, two chemicals the bo...

Human stem cell treatment restores motor function in paralyzed rats

...od flow from the heart must be temporarily blocked with a clamp. After 30 minutes, this lack of blood fl...ated neurons.” For this study, nine of 16 rats with induced spinal cord ischemia were injected with human spinal stem cells 21 days after paralysis. Th...

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

.... Cuthona behrensi, a beautiful white specimen with white-tipped rhinophores named for nudibranch specialist Dave Behrens, who supported the research effort, was found by Alicia Hermosillo under a rock at 13m depth at Los Frailes, Golfo de Chiriqui, Panama. Eubranchus yolandae was collected from L...

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

... a strong immune response against smallpox disease with another vaccine called Dryvax®, the currently lice...ccine will be given either alone or in combination with Dryvax. "Another purpose of the study is to see how quickly people can be protected against small...

Hawaiian treasure, macadamia nuts good for the heart

...rated fats, like those found in olive oil compared with other tree nuts." The researchers used a contro...lled feeding study to compare a heart-healthy diet with 1.5 ounces ?a small handful ?of macadamia nuts to a standard American diet. The participants had sli...

HIVMA opposes The Gambia's unproven AIDS remedy

...nment of The Gambia is encouraging citizens living with HIV to stop taking antiretroviral medications in o...ects of antiretroviral medicines for people living with HIV/AIDS. On the other hand, the remedy President Jammeh is promoting is untested. It is highly unet...

Pistachios lower cholesterol, provide antioxidants

.... They then tested three diets for four weeks each with a two-week break between each diet. All three d...compliance and participants were generally pleased with the diets," says Gebauer. Standard blood tests determined the various cholesterol levels in the ...

Arctic ice retreating more quickly than computer models project

...authors compared model simulations of past climate with observations by satellites and other instruments. ...ata sets, blending early aircraft and ship reports with more recent satellite measurements that are considered more reliable than the earlier records, show ...

Resistant HIV quickly hides in infants' cells

...nt strides have been made in limiting transmission with antiviral drug therapies before, during, and follo...that five of 21 HIV-positive infants were infected with drug-resistant HIV transmitted from their mothers—a surprisingly high figure. Of those five, four w...

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

Treatment with Simvastatin, one of the statin drugs widely used f...ory by nine months of age. These animals, together with regular mice without the beta amyloid genes, were acclimated for one week, with as much food and wat...

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

... nearly three times less likely to wheeze compared with infants exposed to low levels. Fungal glucans a...e to indoor molds during infancy may be associated with respiratory symptoms, such as persistent coughing and wheezing." The UC-led team analyzed the eff...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...lso exhibit great diversity that contrasts sharply with the dearth of ecological niches available to them ...eir expression, while species-specific chromosomes with horizontally transferred genes can account for changes in the cell surface to adapt to different eco...

Mice with a migraine show signs of brain damage

...Aging and Developmental Biology and worked closely with Takahiro Takano, Ph.D., research assistant profess... from the pain. It’s also been shown recently that with repeated migraines, a person’s cognitive abilities decrease. But actually doing damage to the brain ...

Catching cancer's spread by watching hemoglobin

...o 1 mm, much better than conventional microscopes) with a resolution at the micron scale (at the level of blood cells, which is better than MRI resolution) and does not require any contrast agents or fluorescent markers (unlike most other high-resolution vessel-imaging techniques). Clinically, the im...

How to look at dinosaur tracks

... claws. However, the true tracks may be filled with sediment or the original tracked surface may have eroded away. In the latter case, erosion may expose prominent layers of concentric circles extending from the former location of the true track. These “undertracks?reveal the squishing and displacemen...

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

...mal muscle function in genetically engineered mice with weak muscles. The study, published online in Natur...ers boosted SIK1 levels or inhibited HDAC activity with a drug, muscle cell health was restored in mice genetically engineered to lack CREB and suffering fr...

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

...that helps the body handle fat and sugar, compared with rats that didn't receive cherries as part of an ot... for those on the 10-percent cherry diet, compared with rats that received a diet with an equivalently high level of carbohydrates not from cherries. Th...

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