react 2 1

Tag: "react" at biology news

Novel Therapy Tested in Mice Could Chase Away Cat Allergies

... mice were “passively allergic?to cats: they would react to cat protein only after the scientists first injected them with human allergic antibodies to cats. When these mice were then injected with cat allergen, GFD blocked the allergic reaction involving the human cell receptors, an indication that it mig...

NC State scientist finds soft tissue in T. rex bones

...arch shows that antibodies that recognize collagen react to chemical extracts of this fossil bone. If further studies confirm this, we may have the potential to learn more not only about the dinosaurs themselves, but also about how and why they were preserved in the first place." The research was funded b...

Implanted Devices Detect High-Risk Heart Failure Patients

...bility -- whose hearts are unable to appropriately react to external stimuli by regulating their beating action -- are known to be at higher risk of suffering a heart attack. The new insight from CRT-D devices is possible because they record detailed data on heart function 24 hours a day. These new findin...

New Insights Into HIV Immunity Suggest Alternative Approach to Vaccines

...dies are actually polyspecific autoantibodies that react with many proteins, including one's own tissues, l...s bind, are the target of autoantibodies that also react with normal human tissues and are normally destroyed by the immune system," Haynes said. Haynes, an...

Stem Cell Research Shows Potential for Replacing Tissue Damaged in Heart Attacks

...r example, we still don’t know if human cells will react in the same way,?Dr. Lough says. He notes, however, that the research has achieved unprecedented levels of success in this area. Dr. Lough’s laboratory currently is developing support to expand these findings in several areas that will provide addit...

Microscopes at microscopic size

...o develop new treatments by studying the way cells react to a drug. The biochips also raise the possibility of a micro-laboratory, the size of a credit card, which would be able to perform medical diagnostics, improving patient treatment by reducing the number of hospital visits needed for tests. The ini...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

...ed the chances that various types of T cells would react to the modified peptides shown to them by antigen-presenting cells. Unanue's group is working to substantiate their findings and explore their potential relevance to different areas of biomedical research. He notes that insulin-producing beta cells,...

Alarm pheromone causes aphids to sprout wings

...s into flying away. However, aphids were shown to react mainly to the frequency of pheromone release and not the actual quantity present, possibly to avoid manipulation by plants. Thus, to reduce damage caused by aphids, the major insect pests in Europe, it may prove effective to apply pulses of alarm phe...

Atmosphere may cleanse itself better than previously thought

...hat some naturally occurring atmospheric chemicals react with sunlight more effectively than previously tho... the atmosphere and attempt to predict how it will react to increasing quantities of hydrocarbon pollutants, which generate smog. But these models do not alw...

Climatologists discover deep-sea secret

...res are linked by a phenomenon by which the oceans react to changes on either side of the planet. A researc...curate forecasts to be made on how the oceans will react to climate change. The scientists have observed that at several periods in history when the tempera...

How exactly does the brain control breathing?

...tral surface of the brain allows them to sense and react to changes in the pH of the cerebrospinal fluid; this is deemed an essential property of a central chemoreceptor. Richerson, on the other hand, stipulates that central chemoreceptors are found close to the midline blood vessels of the brainstem allow...

Assessing the Amazon River's sensitivity to deforestation

...arn much about how the river flow and flooded area react to year-to-year variations in climate." Currently entering a third phase of study, a model of the Amazon River and floodplain will be combined with estimates of future deforestation to understand how humans may be affecting the Amazon. Coe says, "Th...

Missing Receptor Molecule Causes Tumor Growth

...." It was proven in further tests that these cells react particularly badly to TRAIL. This proves that the missing receptor and not the missing signal can contribute significantly to tumor growth. Silenced Genes Further tests proved why there was such a small number of receptors. Prof. Krainer: "There can...

Nanoparticles carry cancer-killing drugs into tumor cells

...." It was proven in further tests that these cells react particularly badly to TRAIL. This proves that the missing receptor and not the missing signal can contribute significantly to tumor growth. Silenced Genes Further tests proved why there was such a small number of receptors. Prof. Krainer: "There can...

Gene therapy to lower blood pressure just enough

...ters, and reducing the manner in which the vessels react to agents that can constrict those vessels. ANP al...ral vector or whether its immune system eventually react against it, said O'Malley. ...

Study identifies gene in mice that may control risk-taking behavior in humans

... needed that one day could explain why some people react the way they do to fear, or why they take risks, Olson said. "The question is, are there differences in the neuroD2 gene-coding sequence or differences downstream of the neuroD2 pathway during brain development that could affect either psychiatric or...

Bleach found to neutralize mold allergens

.... Seven of the eight allergic individuals did not react to the bleach-treated building materials, and six did not react to the Tilex?treated building materials. This evidence suggests that, under laboratory conditions, ...

Hospitalizations because of chicken pox down dramatically since implementation of vaccine

...cine recommendation prompted states to measure and react to varicella as a reportable vaccine-preventable illness. The costs of such monitoring and of responding to outbreaks of varicella (e.g., in day care or school settings) may be substantial and were not included in the original analysis [in another st...

Nanoscale method for investigating living systems

...rformed in your body, but it is also how chemicals react with your body. When, for example, caffeine enters a cell it stimulates the opening and closing of these ion channels. What we've found is that these quantum dots can form artificial pores that enhance the flow of ions and which we can control from t...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...nfolds over time. The sensor web system is able to react by making new, targeted measurements as a volcanic...bserving systems by reconfiguring their sensors to react to variable or short-lived events and then transmit that information to decision makers so that appr...

1 2 3 4 5