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Tag: "such" at biology news

Climate change impacts stream life

...ates - animals that can be seen with the naked eye such as crustaceans, snails and larval insects including stoneflies or mayflies. Professor Ormerod, said: "Streams and rivers are likely to be highly sensitive to climate and yet long-term evidence of effects is scarce globally. Our study shows a cl...

Role of noise in neurons

... time in the brain. They show how conduction along such thin axons is affected by the probabilistic nature of voltage-gated ion channels (channel noise). Channel noise destroys information in the AP, and they conclude that these effects are much larger than previously supposed and therefore must be taken ...

Keeping the immune system from starting a 'food fight'

...utrient "floodgate" that serves to protect against such an inflammatory immune response. Their findings ap...se. He cautioned, however, that the realization of such a treatment strategy remains uncertain and would require years of continued investigation. Cells ...

Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness

...dy appears to control whether certain medications, such as beta adrenergic receptor agonists used in acute...ped physicians for years -- why specific drugs for such diseases as heart failure or asthma lose their effectiveness over time. Almost half of all drugs ...

Cancer patients monitor fatigue in real time

...ng a method successfully used to monitor behaviors such as smoking cessation and alcohol use. The metho... on a patient's memory to collect data on symptoms such as fatigue. But it's difficult for patients to go back in time, says Eileen Hacker, clinical assista...

Maggots rid patients of MRSA

... to heal. "Still, we were very surprised to see such a good result for MRSA. There is no reason this cannot be applied to many other areas of the body, except perhaps a large abdominal wound." Professor Boulton and his team, including senior nurse Ann Knowles, have used maggots to treat diabetic foo...

Alien plants attack using 'resource conservation' as weapon, researchers say

...ere there is an abundance of materials for growth, such as water, nutrients and light. Biologists have lon...etection followed by a variety of removal methods, such as weed-whacking or introducing natural predators of the invasive plants, said study co-author Peter...

Corals -- More complex than you?

...f 20-23,000." Why a simple creature should have such a huge genetic repertoire is a mystery, but scient...g animals and can throw new light on the origin of such complex features as the nervous and immune systems of vertebrates. Around 10 or 12 per cent of th...

Legal ruling may put endangered species in danger

...ading environmental scholars before defining terms such as endangered species." ...

8 plants from South Africa may hold potential for treating high blood pressure

...ension is treated with medication, including drugs such as angiotensin-converting enzyme inhibitors (ACEI) and angiotensin II receptor blockers (ARB). These drugs not only lower blood pressure but offer additional protection to the brain and heart. ACEI, in particular, provide beneficial properties to pat...

A frown or a smile? Children with autism can't discern

...ut the areas of the brain that normally respond to such visual cues simply do not respond. Led by Mari Davies, a UCLA graduate student in psychology, and Susan Bookheimer, a professor of psychiatry and biobehavioral sciences at the Semel Institute for Neuroscience and Human Behavior at UCLA, the resear...

Traumas like Sept. 11 make brains more reactive to fear

...ornell study that excluded people who did not have such mental disorders as post-traumatic stress disorder (PTSD) or major depression. One of the first studies to look at the effects of trauma on the brains of healthy people, it is published in the May issue of the journal Emotion. "These people appear ...

Brain's white matter -- More 'talkative' than once thought

...rocessing, causing nerve cells to die and creating such neurodegenerative conditions as multiple sclerosis. Bergles speculates that this white matter activity his team discovered may help “naked?nerve cells signal nearby OPCs and say “cover me with myelin because we need to replace another cell that ha...

New knowledge improves rice quality

...rld develop varieties with improved quality traits such as better taste, aroma, and cooking characteristic...t really is a very exciting time to be involved in such research, especially because we can take the new scientific knowledge generated by activities such a...

Targeting sugar on blood vessels may inhibit cancer growth

...hat other systems that rely on endothelial growth, such as the reproductive system and wound healing, remained robust." Studying mouse models with a genetic alteration in an important sugar-modifying enzyme (Ndst1), the researchers saw a marked decrease in the growth of experimental carcinomas. The Nd...

Scientists: As rainfall changes, tropical plants may acclimate

... could still affect plant distribution and growth, such as those that hold sway over pollinators, insect predators or invasive plants. "These plants should be able to do OK in terms of their nitrogen nutrition, even with the climate changing," said Ted Schuur, a UF assistant professor of ecology and on...

Newborn neurons like to hang with the 'in' crowd

...lace damaged neurons in neurodegenerative diseases such as Alzheimer's or Parkinson's disease you have to ensure that these cells make proper connections, form functional synapses and integrate into the rest of the brain," says postdoctoral fellow Nicolas Toni, Ph.D., who headed the current study. To f...

Students invent protective pouch to enhance cell therapy

...the encapsulated cells and circulate the proteins, such as insulin, produced by these cells. The projec... drawing on the expertise of prominent researchers such as Arepally and Bulte. "I don’t think I could have found an opportunity like this anywhere else," he...

UQ research heralds vaccine technology breakthrough

...ymptoms, elderly people and the immunocompromised, such as people with HIV or those who have weakened immune systems due to treatments such as chemotherapy. "Benefits of the vaccine will include a huge saving in health care costs," Profes...

Healthy coral reefs hit hard by warmer temperatures

...cies successfully adapt or evolve, when faced with such change?" Rice said. Understanding the causes of disease outbreaks will help ecologists protect reef-building corals, which support commercial marine species and buffer low-lying coastal areas. "More diseases are infecting more coral species eve...

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