Tag: "interacting" at biology news

Chemists describe "zipper teeth" of DNA molecules -- publish results in the journal Nature

... these base pairs of guanine and cytosine were not interacting with anything else, no solvent, for example," said de Vries. "They are not in a cell, and are not even part of a larger DNA structure." Then they hit the molecules with more lasers causing them to ionize. Next, they used spectroscopy, analysis of li...

New UCLA study suggests that avoiding high-fat foods may help protect bones from osteoporosis

...te effects could be due to how high cholesterol is interacting with the soft tissue found in the arteries compared with hard tissue found in bone. Demer notes that much more research into these areas needs to be completed to help better understand how the body works and how these diseases develop....

Deep Green spawns Deep Gene and Deep Time to continue work toward a complete tree of life for the green plants

...sons allow researchers to study complex systems of interacting genes, such as those controlling the angiosperm fl...his complex phenotype, which involves more than 80 interacting genes. "When plants first invaded the land, they were all vegetatively dessication tolerant they co...

All specialized insect predators not suitable for biological control

...logical systems between the number of identifiable interacting groups and what is referred to as the dimensions of the dynamics. We are now able to calculate this quantity from time series data. To our surprise, we found that in natural systems, there may be such a connection, but it is not inevitable." The ...

Scientists discover how nerve cells move from target to target as they wire up the developing embryo

...iated the silencing effect. They then removed the interacting sites on each receptor and showed that the silencing effect was lost. Finally, they replaced these interacting sites with synthetic sites and showed that the silencing effect was restored - because the receptors...

Swarthmore chemist wins national award for research with students

...his student researchers discovered that porphyrins interacting with DNA show a unique signature in certain energy fields, a technique called spectroscopy. "We also discovered we could induce certain porphyrins, under the right conditions, to come out of their hiding places in DNA and form organized assemblies,...

Researcher finds that important fungal "scaffolding" genes belong to one of four classes

...led interlogs to study A. nidulans. Interlogs are interacting proteins from one species whose orthologous proteins from another species also interact. Direct identification septin interlogs by a combination of computational and experimental methods will significantly accelerate studies of the septin function in...

New study could lead to better treatment of septic shock

...both are important and suggests that they are both interacting to produce a substance that causes the vascular leakage." The drugs used in the animal study are not approved for human use, Klabunde said, so a new therapy would need to be developed for patients with septic shock. To combat the condition, h...

Undergrad's digital model of amoeba helps scientists study human cells

...the computer, we change the way the components are interacting or add new ones and see what happens. This type of experimentation can help us direct our efforts toward finding certain proteins and analyzing certain pathways more aggressively." In developing the model, Kim said training her engineering skills on...

Remote sensing study defines "edgy" cities

...hese cities are changing over time and how they're interacting with their surrounding environment." Looking at differences in the "texture" created by picture elements produced by light and dark surface materials, the researchers have found a method that allows them to define boundaries between different kinds o...

Scientists record extraordinary sounds made by minke whales

...heir movements, and see how vocalizing animals are interacting with one another," Gedamke said. There are several distinct forms of minke whales. The Northern Hemisphere and Southern Hemisphere forms are often considered separate species. The dwarf minke whale, although it occurs in the Southern Hemisphere, is m...

Beyond global warming: Where on Earth are we going?!

...now apparent that these changes are cumulative and interacting and could accelerate the Earth into a different state with implications for its habitability. This striking message comes from global change scientists around the world as they prepare to meet in Amsterdam in July for one of the biggest and most inte...

Immune co-stimulation and the Kaposis virus

...e absence of these proteins on the B cell surface, interacting T cells fail to induce the usual program of gene expression that is associated with active CTL responses. Because K5 resides in the ER protein of infected cells, its specific and profound effect on the fate of surface-expressed ICAM and B7.2 remains...

Manipulating a single gene dramatically improves regeneration in adult neurons: Finding may lead to new approaches for treating brain and spinal cord damage

...e the wheels back, which are the cars usual way of interacting with the environment, its ready to go. Integrin proteins are like the tires of the car they connect with the surrounding surface to enable neurons to extend nerve fibers, she explains. The finding complements studies of factors in the nervous syste...

Trouble in paradise? 'Natural' pest control requires careful planning, Science authors conclude

...the degree to which certain biocontrol species are interacting with native species. So, they constructed food webs of Hawaiian plants, butterflies and moths, and parasitoids. The Lepidoptera (butterflies and moths) feed on the plants. Parasitoids, such as alien wasps, lay eggs on the bodies of Lepidoptera c...

Researchers building a trap for chromium six

...x is carcinogenic because it is highly reactive -- interacting with the body's chemistry and functions, says Gary Long, chemistry professor at Virginia Tech. "If you have a site with chromium contamination and you want to find out what form it is and whether it is in the groundwater, you could dig wells to sampl...

The genetics behind miniature plants

...es. Dr. Fink and colleagues also identified a BON1 interacting protein, BAP1. BON1 and BAP1 localize to the plasma membrane, and are both more highly expressed at lower temperatures. Dr. Fink and colleagues have determined that BON1 is a member of the copine gene family, a group of prevalent and highly conserved...

The RANKL cytokine at 2.6

...roteins form trimers normally but are incapable of interacting with RANK. This loop sequence would therefore be expected to antagonize RANK signaling and might prove useful in controlling ostoeporosis by blocking osteoclast-mediated bone resorption....

Researchers put their heads together to understand complex world of wild plants and animals

...arger, more integrated models, where you have many interacting species in different environments." Species of different sizes - say an insect and an elephant - perceive environment in very different ways, says Lima-Filho. For this reason, he assigns each organism with a mathematical entity, the scaling function,...

Movement of single molecules imaged in live organism

...eptors or those moving in a straight line might be interacting with the internal skeleton of the cell....

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(Date:4/17/2014)... PLOS Pathogens , children who live in regions ... an immune response to infection with malaria parasites that ... fever and illness and partially control the growth of ... researchers develop future interventions that prevent or mitigate the ... approximately 200 million cases of malaria occur worldwide, resulting ...
(Date:4/17/2014)... in the April issue of Immunity , Kevin ... Medical Research, says it,s time to take a fresh ... sepsis, which kills millions worldwide every year, including ... released into the bloodstream to fight an injury or ... for maintaining good health without inflammation, wounds and ...
(Date:4/17/2014)... Il. (April 17, 2014) Doctors who treat ... called lymphangioleiomyomatosis (LAM) can face an agonizing treatment ... of the disease and help relieve shortness of ... transplants, and sirolimus can cause potentially fatal complications ... pulmonologist Dr. Daniel Dilling, medical director of Loyola ...
(Date:4/17/2014)... a new mechanism that allows blood to enter the ... and the Salk Institute have opened the door to ... damage. , A complex and devastating neurological condition, stroke ... for disability in the U.S. The blood-brain barrier is ... into the brain, causing the permanent deficits in movement ...
(Date:4/17/2014)... to ward off depression among retirees, particularly among those ... The Journals of Gerontology, Series B: Psychological ... " Internet Use and Depression Among Retired Older Adults ... authors report that Internet use reduced the probability of ... sample. , Late-life depression affects between 5 and ...
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