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Tag: "source" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...CHESS synchrotron, which provides a high-intensity source of X-rays for various studies. In their next trip to this facility, the team plans to study FP-23 together with cholesterol, a molecule known to modulate the stiffness of cell membranes....

Art and music for the birds

Nature is a valued source of inspiration for artists. But what have artists offered the natural world" Would a bird even like rock and roll" Conceptual sculptor Elizabeth Demaray, an assistant professor of fine arts at Rutgers University—Camden, is testing the musical tastes...

Old memory traces in brain may trigger chronic pain

...Northwestern University researcher has found a key source of chronic pain appears to be an old memory trace that essentially gets stuck in the prefrontal cortex, the site of emotion and learning. The brain seems to remember the injury as if it were fresh and can’t forget it. With new understa...

Hormone helps mice 'hibernate,' survive starvation

...brink of starvation normally shift their main fuel source from carbohydrates to stored fats, promoting survival during foodless periods. Some mammals also enter a hibernation-like state of regulated hypothermia, known as torpor, which conserves energy. The molecular driver behind this reaction to starvat...

Pesticides choke pathway for nature to produce nitrogen for crops

...en fixation is reduced. If this natural fertilizer source is not replaced by increased application of synthetic nitrogen fertilizer, then crop yields are reduced and/or more growing time is needed for these crops to reach the yields obtained by untreated crops. We feel that this is a previously unforeseen f...

In mice, drug protects against diabetes and atherosclerosis

...manipulation is a huge milestone and an incredible source of excitement," said Hotamisligil, Professor of Genetics and Complex Diseases. "This drug is very effective in treating diabetes and heart disease in mice at the same time, and we believe it may turn out to be protective against asthma and other meta...

Research shows cord blood comparable to matched bone marrow

...e controversy in the medical community about which source of blood stem cells (cord blood or marrow) should be considered the “gold standard” for treatment of childhood leukemia. In this study, the investigators compared outcomes of pediatric leukemia patients who received unrelated bone marrow transplan...

Could fungal collection hold the key to new life-saving drugs?

...ng with CABI and to have access to their fantastic source of fungal samples. We hope that this novel source of chemical diversity will contain new compounds that can be used to point the way to new drugs for ...

New findings challenge established views on human genome

...a “warehouse for natural selection” by acting as a source of functional elements unique to each species and of elements that perform the similar functions among species despite having sequences that appear dissimilar. Other highlights of the ENCODE work include: Identification of numerous previously...

Plastic that grows on trees

...ying to pull it off: Replace crude oil as the root source for plastic, fuels and scores of other industrial ...rted sugars ubiquitous in nature to an alternative source for those products that make oil so valuable, with very little of the residual impurities that have ...

Cancer stem cells similar to normal stem cells can thwart anti-cancer agents

...led cancer stem cells, which ultimately become the source of disease recurrence and eventual metastasis. Now, research by scientists at the University of Pittsburgh School of Medicine suggests that for chemotherapy to be truly effective in treating lung cancers, for example, it must be able to target a smal...

Marine phytoplankton changes form to protect itself from different predators

...th some arguing that Phaeocystis makes a good food source for higher creatures in the cold oceans, while others contend its food role is small. While this paper won’t resolve the dispute, Hay believes it shows that both points of view could be correct – depending on which form the organism has taken. “I...

Runners -- Let thirst be your guide

...more than that, because sweat represents the major source of fluid loss during exercise.” A healthy person needs to be dehydrated in the range of 4-6 percent loss of body water before there’s a significant health risk problem from dehydration, Verbalis says. “So, really, if people just do things in moder...

Reconstructing the biology of extinct species: A new approach

..., we can test our previous conclusions using a new source of information." ...

Surprising origin of cell's internal highways

...teins out to their cellular destinations -- is the source of a particular subset of these microscopic fibers. The findings point to a novel cellular mechanism that may guide cell movement and possibly cancer cell invasion. Microtubules are the largest of the three main types of filaments that make up th...

Scientists close in on missing carbon sink

...ally indicated that tropical ecosystems were a net source of 1.8 billion tons of carbon, largely because tre...tes, instead, that tropical ecosystems are the net source of only about 100 million tons of carbon, even though tropical deforestation is occurring rapidly. ...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...ilical cord blood because it is an especially rich source of fresh adult stem cells and is easily available from donors undergoing Caesarian section deliveries in UTMB hospitals. "However," he added, "embryonic stem cell research was absolutely necessary to teach us how to do this." Embryonic stem cel...

New research shows sharks use their noses and bodies to locate smells

...ctory system, the lateral line, and vision in odor source detection and localization in the smooth dogfish s... severely handicapped in its ability to locate the source of an odor when deprived of information from its lateral line, particularly in the dark. Accordi...

How to look at dinosaur tracks

...ate tracks in the rock record can be an invaluable source of information about foot morphology, soft tissue distribution, and skin texture,?write Jesper Milàn (Geological Institute, University of Copenhagen) and David B. Loope (Department of Geosciences, University of Nebraska, Lincoln). “However, in most i...

LIAI scientists make important finding on cytomegalovirus transmission

... Ware noted that the salivary glands are a primary source of transmission for many viruses due to sneezing, coughing and kissing. Eliminating the virus at this critical juncture may significantly reduce CMV’s spread, he said. In the study, Croft said the research team used an antibody to block the act...

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