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Tag: "found" at biology news

'Smart' mice teach scientists about learning process, brain disorders

...nzyme to break up a molecule called NR2B, which is found in nerve-cell membranes and stimulates the cell to... in doing so and applying this technology, we also found biochemical targets that hold promise for future treatments of a variety of cognitive disorders," he...

'Virtual autopsy' helps identify drowning as cause of death

...of drowning as a cause of death for a body that is found in water is imperative in forensic investigation because becoming submerged in water may be a secondary rather than primary event. Autopsy findings that support the diagnosis of drowning include but are not limited to frothy fluid in the airways or l...

Avian influenza survivors' antibodies effective at neutralising H5N1 strain

...ss National Science Foundation. The researchers found that the antibodies provided significant immunity ...N1. This reduced significantly the amount of virus found in the lungs and almost completely prevented the virus reaching the brain or spleen. In those people...

'Nurse cells' make life and death decisions for infection-fighting cells

...heir existence was debated because many scientists found it difficult to believe that a cell could internalize another cell, said Jerry Guyden, a biologist at the City College of New York and lead researcher. The thymus is present in most vertebrates, with a similar structure and function as the human t...

HIV and malaria combine to adversely affect pregnant women and their infants

...ially clear the parasites in their placentas. They found that HIV-infected women lose these antibodies and again become susceptible to the ravages of PAM. The findings, according to Kain, may help in the development of PAM vaccines. "This is only the first step in creating therapeutics to treat this dev...

Eavesdropping comes naturally to young song sparrows

...spiza melodia) acquire their song repertoires have found the first evidence that young birds choose many of their songs by eavesdropping on the tuneful interactions between other sparrows. In laboratory experiments, the young sparrows were exposed to two adult "tutors," one of which they directly intera...

Common treatment for methamphetamine overdose may damage brain cells

...ing the long-term effects of the combination, they found that glutamate concentrations in the substantia nigra were twice as high in methamphetamine-treated rats as in saline-treated ones two days after injections. Yamamoto and his colleagues were able to link this rise in glutamate to the death of GABA-co...

For many insects, winter survival is in the genes

...l ultimately die." Denlinger and his colleagues found nearly a dozen additional heat-shock proteins that...he flies in this dormant state. The researchers found 11 previously undiscovered genes that turn on heat-shock proteins during diapause. Until this study,...

How brain pacemakers erase diseased messages

...ved by the Food and Drug Administration and can be found in the heads of about 30,000 Americans, the mechan...Duke University's Pratt School of Engineering have found that stimulation administered by rapid-fire electrical pulses deep in the brain produces what they c...

Philandering female felines forgo fidelity

...n Society and the Zoological Society of London has found that many cheetah litters have more than one fathe...ty and the Zoological Society of London (ZSL) have found that, in cheetah society, it’s the female with the wandering eye, as reported in a paper in the late...

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

By observing wild orangutans, a research team has found that walking on two legs may have arisen in relati...3,000 examples of observed orangutan movement, and found that the orangutans were more likely to use hand-assisted bipedalism when they were on the thinnest ...

Moths mimic sounds to survive

... closely mimic those high-frequency sounds. “We found that the bats do not eat the good-tasting moths that make the similar sounds,” said Barber, who has worked on this research for four years. In the study, other types of moths that were similar in size to the sound-emitting moths, but did not make...

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

...ve 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 Los Arcos, Bahia de Banderas, Jalisco-Nayarit, Mexico, from a rock wall at a depth of 17m. This species was named for...

Hawaiian treasure, macadamia nuts good for the heart

... higher levels of monounsaturated fats, like those found in olive oil compared with other tree nuts." The researchers used a controlled 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 slightly elevated ch...

Pistachios lower cholesterol, provide antioxidants

...r cholesterol and provide the antioxidants usually found in leafy green vegetables and brightly colored fru...e participant’s blood after each diet. Researchers found that 3 ounces of pistachios reduced the amounts of total cholesterol in the blood by 8.4 percent and...

Arctic ice retreating more quickly than computer models project

...rvations by satellites and other instruments. They found that, on average, the models simulated a loss in September ice cover of 2.5 percent per decade from 1953 to 2006. The fastest rate of September retreat in any individual model was 5.4 percent per decade. (September marks the yearly minimum of sea ice...

Resistant HIV quickly hides in infants' cells

...ul attempt to prevent mother-to-child transmission found the virus quickly developed resistance, but levels...levels. In the current study, however, researchers found these resistant viruses quickly took up residence in inactive T cells, from where they could later l...

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

...is of the beneficial effects. Various studies have found evidence of a strong relationship between memory d...terol biosynthesis. In this study, Dr. Morcos found that nNOS (neuronal nitric oxide synthase) levels were significantly higher in the hippocampus and c...

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

...y protect against future allergies. The UC team found that infants who were exposed to high levels of indoor fungal components—known as fungal glucans—were nearly three times less likely to wheeze compared with infants exposed to low levels. Fungal glucans are tiny molecules that scientists believe c...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...enome structure and metabolic capabilities. "We found several striking features of genome organization," said DOE JGI’s Igor Grigoriev, the PNAS paper’s senior author. "Overlapping genes conserved across the species may enable them to cross-regulate their expression, while species-specific chromosomes ...

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