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Tag: "indicated" at biology news

Arctic expedition will investigate alien-like glacier

...e and noticed the strong smell of rotten eggs that indicated the presence of sulfur. Grasby then visited the in 1999 and 2001 and collected samples of the water and mineral deposits from the spring, which contained new forms of bacteria and an extremely rare mineral known as vaterite. Sulfur-loving organisms ...

Transgenic goat's milk offers hope for tackling children's intestinal disease

... In both animal models, the results of this study indicated that the milk from the transgenic goats was impacting the growth of digestive-tract bacteria -- although with opposite results. The young pigs fed the lysozyme-rich milk from transgenic goats had lower levels of coliform bacteria in the small intes...

Compound in dairy products targets diabetes

...ce prone to adult onset (Type-2) diabetes. Results indicated that the mice had an improvement in insulin action, and a decrease in circulating glucose. Also, the mechanism was indeed similar to that of the drugs. "Anti-diabetes drugs act the same way. They mimic the natural activators of the receptors by g...

Quick -- what’s that smell?

... accurate identification of that odor. The results indicated that the mice needed extra time to accurately identify more complex odors. "The well-trained mouse needs almost half a second to solve a difficult olfactory discrimination task," says lead author Dmitry Rinberg, PhD. "This time window is very impo...

Wasps queue for top job

...d the queen's larvae. Previous scientific thinking indicated that the variation in help given might be proportional to genetic relatedness. Those less closely related to the queen would help out less. This new study, however, shows that more distantly related wasps aren't in fact lazier. Instead, the team le...

Patients to benefit from novel technology revolutionizing high-speed molecular imaging

...periment with the imaging camera, said Patton, who indicated that the imaging device is investigational, with Food and Drug Administration submission expected over next few months. ...

'Cellular antennae' on algae give clues to how human cells receive signals

...ailure to activate the chain of chemical reactions indicated that IFT was necessary for this function. Analysis showed that the cilia signaling process was similar to that found in human cells, such as those in the nose involved in the sense of smell and those in the developing nervous system that sculpt our...

Mutant mice show key autism traits

...how such a reduction in interest. This abnormality indicated "impaired social learning or inability to identify the juvenile due to the low level of initial interaction," wrote the researchers. In other tests of social behavior, the researchers found that--when given the choice of investigating a cage holding...

The brain's motivation station

...jects with such symbols as circles or squares that indicated an amount of money the subjects could gain or lose--from no money to $5--by rapidly responding to a subsequently presented target by pressing a button. The subjects were notified immediately whether they had received the reward. The researchers found...

New data from NIH lab confirms protocol to reverse type 1 diabetes in mice

...ing pancreatic islet cells to regenerate. Evidence indicated that the spleen cells were the source of at least some of the regenerated islet cell and hastened the restoration of blood sugar levels. The direct contribution of spleen cells to islet recovery, first described in the 2003 study, is confirmed in ...

Getting to the heart of the heart

...way. The presence of these cardiac progenitors was indicated by a green fluorescent protein, which lit up when a gene called Nkx2.5 was activated. Orkin and Wu then showed that these cells further differentiated into both myocardial cells and smooth-muscle cells. Next, using the same fluorescent "tags," Ork...

Neural stem cells lend the brain a surprising capacity for self-repair

...SVZ "greatly disturbed," Jan said. Their results indicated that Numb and Numblike have two important functions, namely a role in the survival of neuroblasts and an unexpected role in maintaining the cellular wall that lines the ventricular region of the brain in which the SVZ resides. Without the normal comp...

Worms produce surprise insight into human fever

...ca, Yersinia pestis, and Enterococcus faecalis. It indicated that HSF-1 is part of a broad, multi-pathogen defense pathway. And it also suggested something new about fever, says Aballay. Fever is an ancient immune mechanism used by metazoans in response to microbial infections. Warm-blooded “homeotherms...

Pattern of human Ebola outbreaks linked to wildlife and climate

...o track down six of the people whose blood samples indicated that they had been exposed to the Ebola virus. Life history interviews revealed that some of the antibody-positive people had never visited a region where known Ebola outbreaks occurred in humans. Therefore people have been exposed to the Ebola vir...

What does the public really know about HPV?

...ents had heard about a vaccine for HPV, 80 percent indicated never having talked to a health care provider abou... protects only against cervical cancer, 63 percent indicated they were "very likely" or "somewhat likely" to get vaccinated, compared to 43 percent of women who ...

Gene signature assesses breast cancer outcomes

...t Online! software. Moreover, statistical analysis indicated that most of the prognostic information provided by traditional risk classifiers was included in the gene classifier. The authors write, "These results indicate that the gene signature adds independent prognostic information to that provided by a r...

PET imaging shows young smokers quick benefit of quitting

...dothelial dysfunction after giving up cigarettes," indicated Tamaki. Coronary endothelial dysfunction occurs when the heart's blood vessels aren't flexible enough to expand in response to increased blood flow. Smoking can damage the endothelium—the innermost layer of the artery—and over time, plaques can narro...

Researchers identify neurons that assign value during learning

...e course of associative learning? Past work had indicated that certain neurotransmitters played key roles in assigning attractive or aversive values to neutral stimuli--for example, neurons expressing dopamine are required for aversive learning, whereas neurons expressing another neurotransmitter, octopamin...

Anticipation plays a powerful role in human memory, brain study finds

...o kinds of signals. One was neutral, but the other indicated that some type of gruesome picture was soon to follow, such as explicit photos of bloody, mutilated bodies.Thirty minutes after the researchers had shown dozens of violent images, they quizzed study participants on how well they remembered the pictur...

Chronic jet-lag conditions hasten death in aged mice

...n to time change may be complex. Past research has indicated that circadian clocks govern physiological rhythms in a great variety of tissues in the body, and that different aspects of the physiological clock can adjust to schedule changes at different rates. The researchers speculate that the internal lack of...

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