surprised 2 6

Tag: "surprised" at biology news

UF scientist finds unexpected link between cat and human AIDS viruses

... make a better vaccine." Yamamoto's team was also surprised to discover that a core protein found in HIV also effectively protects cats against FIV. "So what does this mean to human AIDS research? The viruses HIV and FIV are from the same viral family," Yamamoto said. "For that reason, the amino acids that m...

Color perception is not in the eye of the beholder: It's in the brain

...e Williams looked into their eyes, however, he was surprised to see that the number of long- and middle-wavelength cones--the cones that detect red, green, and yellow--were sometimes profusely scattered throughout the retina, and sometimes barely evident. The discrepancy was more than a 40:1 ratio, yet all the...

Micro RNAs play role in egg making

... stem cell biology." Investigators were initially surprised to find that miRNAs affected only a small fraction of expressed genes within a maturing egg. On closer inspection, they found that the genes affected by miRNAs shared common roles as regulators of protein manufacturing or turnover. These results sugg...

Genetically modified maize not found in southern Mexico

...sgenes in these indigenous varieties. The finding surprised the researchers, said Allison Snow, a professor of evolution, ecology and organismal biology at Ohio State University . She helped lead the study that appears online this week in the Early Edition of the Proceedings of the National Academy of Science...

New tooth enamel dating technique could help identify disaster victims

...od chronometer of the time of formation. "We were surprised at how well it worked," he said. "And if you look at multiple teeth formed at different times, you can get (the age range) even tighter." Previous techniques, such as evaluating skeletal remains and tooth wear, are accurate only to within five to 10 ...

Variant prion protein causes infection but no symptoms

...says. "There was so much about this research that surprised us and gave us ideas to pursue," says Dr. Chesebro. "First, the mice didn't get sick. That's very significant. Second, the dense accumulations of scrapie plaque in the brain resembled the plaque seen in Alzheimer's, but it wasn't toxic," which might ...

Disappearing arctic lakes linked to climate change

...ticle's lead author. Smith and his co-authors were surprised by the overall loss in surface water. "We were expecting the lake area to have grown with climate change," said Smith. "And while it did do so in the north where the permafrost remains intact, lake area did not increase in the south where permafrost...

Researchers find how some antibiotics kill bacteria

...he bacteria they attack. The researchers were also surprised to find that different rifamycins bring about this same result in slightly different ways. "This is a major revision of how we thought these antibiotics functioned," Artsimovitch said. "The new molecular details help explain why bacteria that are re...

Researchers predict infinite genomes

...es every time a new strain is sequenced. "We were surprised to find that we haven't cornered this species yet," says Tettelin, lead author of the PNAS paper. "We still don't know--and apparently, we'll never know--the extent of its diversity." To interpret this infinite view of microbial genomes, Tettelin an...

Past droughts geographically widespread in the West, according to tree-ring data

... Tree-Ring Research's scientists. "Dave and I were surprised that the two distant basins, the Upper Colorado and the Salt/Verde, were so much in synch during periods of extremely high or extremely low flow." She added, "The recent joint drought, while severe, is not unprecedented when compared to those in the ...

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

...nt corrective effect in the mdx mice, which really surprised us." In future research, U-M scientists want to test P188 on mice with other types of dystrophies and see if it works as well when given as injections, rather than infusions. Metzger emphasizes that it is uncertain whether P188 will have any clinic...

President Bush's cut to AIDS prevention in Africa would be devastating

...ease might be affecting this relationship. We were surprised to find dramatic patterns across the board, where the species of primates doing poorly in logged areas had a much higher prevalence of parasitic infection and more types of parasites affecting them simultaneously." Gillespie and co-authors Colin A. ...

Affymetrix and ParAllele Launch Industry's Most Comprehensive Product Line for Targeted Genotyping

...ease might be affecting this relationship. We were surprised to find dramatic patterns across the board, where the species of primates doing poorly in logged areas had a much higher prevalence of parasitic infection and more types of parasites affecting them simultaneously." Gillespie and co-authors Colin A. ...

Malfunctioning bone marrow cells sabotage nerve cells in diabetes

...ells or neurons. "In our latest studies, we were surprised to discover that insulin-producing cells originating from bone marrow caused premature cell death and dysfunction when they merged with neurons, resulting in neuropathy," said Chan. "It all began several years ago, when we were developing gene the...

Logging changed ecological balance for monkeys, damaged health

...ease might be affecting this relationship. We were surprised to find dramatic patterns across the board, where the species of primates doing poorly in logged areas had a much higher prevalence of parasitic infection and more types of parasites affecting them simultaneously." Gillespie and co-authors Colin A. ...

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

...ven years are really quite amazing. We wouldn't be surprised if some major physiological changes happened, but here's a real quantified example." He added: "Generally there are two ways to improve efficiency: Train your maximum capacity to be very high, or train your sub-maximal capacity to be very efficient....

Bitter or sweet? The same taste bud can tell the difference

...age that something sweet is being eaten. "We were surprised to see that NPY had the exact opposite action of C...cell that expressed NPY also expressed CCK. "That surprised us, too," Herness said. "It may be that these cells release both peptides when something sweet or bi...

Researchers devise new technique for creating human stem cells

...nsive reprogramming of the somatic cells. "We were surprised at how complete the reprogramming was," said Eggan. "I think we were expecting that there would be more 'memory' of the adult state than the embryonic in the hybrid cells. It was quite clear that when we looked at these hybrid cells, they had complet...

Divergent life history shapes gene expression in brains of salmon

...differ." Aubin-Horth and her colleagues were also surprised by some of the 17 separate classes of genes demonstrating differing activity levels. "It makes sense that growth genes are suppressed in sneakers and genes associated with reproduction are expressed more, since these fish essentially trade bodily si...

Spiders help scientists discover how muscles relax

... when they are switched on." The scientists were surprised to find that the atomic structure of isolated myosin molecules from vertebrate smooth muscle--the type of muscle found in the digestive tract, bladder, arteries, and veins--closely matched their invertebrate striated muscle myosin filament. Kenneth T...

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