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Tag: "significant" at biology news

Using nanomagnets to enhance medical imaging

... a new class of MRI contrast agents that may offer significant advantages, such as versatility in design, over the compounds used today. Contrast agents are used to highlight different tissues in the body or to help distinguish between healthy and diseased tissue. NIST is working with two universities and a ho...

Red flag for repetitive stress injuries identified for first time in humans

...dence of biomarkers. "The blood tests revealed significant levels of several types of inflammatory mediators ?biomarkers ?which signaled an underlying problem," said Barr. "Also, the more severe the injury, the more biomarkers there were." Future research by the team will look deeper into the potential of...

Glucose triggers brain cell death in rats after hypoglycemic coma

...rats could remain hypoglycemic without evidence of significant oxidative stress for at least 60 minutes," says Swanson, who is also professor and vice-chair of neurology at the University of California, San Francisco. "It was only when we gave them glucose to reverse the hypoglycemia that the oxidative stress oc...

Male-killing bacteria makes female butterflies more promiscuous

...received much attention until now. This finding is significant for the scientific community because it demonstrates how a species' mating system can be determined by the frequency of a parasite....

Researchers design pulsed mircrojet system to deliver protein drugs without pain or bruising

...accines has recently been identified as one of the significant emerging challenges in global health. The researchers felt that the pain and bruising caused by previously-developed jet injectors was caused by the deep penetration of jets into the skin, creating negative reactions of nerves and capillaries. The...

Changes in amino acids in the 1918 influenza virus cut transmission

...hed in the February 1 issue of Science, could have significant clinical implications in helping scientists develop ways to break the disease cycle and possibly help reduce the risk for a potential pandemic. While flu pandemics occur every 10 to 40 years, the factors that lead to the emergence of pandemic viruse...

Researchers learn what sparks plant growth

...During the last decade, Chory has made a number of significant discoveries involving a key family of plant hormon...ally important area of plant biology research with significant implications for commercial agriculture. "It’s been a matter of some debate for a very long time ...

The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

...ansplantation of female cells leads to a much more significant level of skeletal muscle regeneration," she said. "The male cells exhibited increased differentiation after exposure to oxidative stress, which may lead to cell depletion and a proliferative advantage for female cells after cell transplantation." ...

Scripps research study shows humans and plants share common regulatory pathway

...tivities of some R proteins Although there is a significant genetic crossover between plants and mammals, very...tabilize Nod1. "Inhibiting HSP90 resulted in a significant reduction of Nod1 protein levels," Ulevitch said. "That clearly suggests that this protein plays a k...

Researchers identify ovarian cancer biomarkers

...A new way of detecting ovarian cancer could make a significant dent in this disease, where 70 percent of patients are diagnosed after the tumor has grown large or spread. There are few or no symptoms early in the disease and no effective screening tests. Early diagnosis is crucial, marking the difference between...

Female chimps keep the bullies at bay

...thors looked at whether or not females displayed a significant tendency to synchronize their estrous cycles. Commenting on these findings, the authors suggest that "avoiding synchronizing estrous cycles may be a female strategy to reduce male sexual coercion." Indeed, male chimpanzees use coercive tactics ...

LIAI completes world's most comprehensive analysis on influenza virus data

...e way people respond to influenza, Wilson said two significant points emerged. "One concern is that most of the current influenza research is based on strains maintained in the lab, rather than wild influenza strains. Since we know the virus mutates, research needs to be done using influenza strains currently ...

Type of stem cell found to reside in transplanted lungs

...niversity of Michigan Health System researchers is significant because of the large number of lung transplant pat...lls with relative ease from lavage fluid is a very significant finding as it provides a potential source to isolate MSCs, says Victor J. Thannickal, M.D., associat...

Study finds surfing safer than soccer

...e surfing has a relatively low risk of injury ?6.6 significant injuries per 1,000 hours of surfing - compared to other sports for which comparable data is available," says lead author Andrew Nathanson, MD, an emergency medicine physician with Rhode Island Hospital's Injury Prevention Center. "However, the risk o...

Female Antarctic seals give cold shoulder to local males

...with dominant males with favoured traits. This is significant as studies have shown that more genetically diverse individuals tend to be more resistant to disease, carry fewer parasites, and in the case of males, are more aggressive and father more offspring. It had long been assumed that the females were pas...

Drug-resistant bacterial infections serious complication after corrective eye surgery

... resistance. Community-acquired MRSA is becoming a significant problem, with the prevalence of MRSA among community isolates expected to reach as high as 25% in the next decade. The authors cite the case of a male nurse who underwent an "uneventful" bilateral LASIK procedure that resulted in 20/20 (right eye)...

How trees manage water in arid environments

...vailable soil moisture." In short, winter has a significant impact on the primary growing season for these mountain trees, because moisture is continually available from rain or snow, the tree root zones don't freeze, and there is enough sunlight for photosynthesis. The trees slow down during the pre-monsoon ...

Soft-cell approach cuts animal tests

...economic, and ethical value of research and play a significant role in the screening of toxic chemicals and the replacement of animals," Dr Hayes says. This research earned Hayes and her colleagues the 2006 Australian Museum Voiceless Eureka Prize for Research. This prize rewards scientists for work that has...

3 proteins may play important role in nerve-cell repair

...sed amounts of the proteins were associated with a significant rise in the level of an important signaling molecule inside the nerve cells called cAMP. This molecule plays a key role in regulating nerve-cell growth, differentiation and survival, and the regeneration of long parts of the cell called axons that ca...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

...y of previously unknown species diversity has very significant legal and commercial implications." Since the time of Hippocrates and long before Carolus Linnaeus first described Hirudo medicinalis in 1758, medicinal leeches have been used in a variety of medical treatments--some legitimate, many not. Demand f...

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