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Tag: "balance" at biology news

Brain inflammation may be friend, not foe, for Alzheimer's patients

...ed. “People have talked for a long time about a balance of ‘good guys’ and ‘bad guys’ within the inflammatory process, either causing harm or alleviating the disease. The current work reinforces the idea that inflammation is not simply the bad guy that many people think it is.” The work could have rami...

Researchers find 24 species believed new to science in Suriname rainforest

...cymakers and other stakeholders in deciding how to balance development with protecting important biodiversity that benefits local communities and the global ecosystem. “Suriname has some of the Amazon’s most pristine and intact rainforest, which offers huge potential for scientific research and economic i...

Reconstructing the biology of extinct species: A new approach

...ic hypothesis of the project was that the organ of balance -- which helps stabilize an animal's gaze and coor... a new way of moving about the world, its organ of balance must evolve accordingly," Walker explains. From the visual information, the animal tracks its posit...

Mice with a migraine show signs of brain damage

...he organ attempts to restore the delicate chemical balance that is lost in the initial throes of a phenomenon... brain was working so hard to restore the chemical balance and to resume normal cellular function, using so much oxygen, that the brain simply couldn’t keep up...

'Insulator' helps silence genes in dormant herpes virus

...of chromatin insulator that helps HSV-1 maintain a balance in its life cycle." The study also showed that HSV-1 chromatin is organized in a manner very similar to the host chromatin, a similarity that may work to the virus's advantage, says Shelley L. Berger, Ph.D., the Hilary Koprowski Professor at The W...

Keeping the immune system from starting a 'food fight'

... Cells and organisms must strike an appropriate balance between nutrient sufficiency and surplus, the researchers explained. While adequate amounts of nutrients must be obtained to ensure health and survival, chronic overeating can lead to obesity and an array of associated metabolic disorders, including ...

LIAI scientists make important finding on cytomegalovirus transmission

...ttle the virus. "We used this approach to tip the balance in favor of the T cells that would reduce the virus," he said. The scientists got a stronger result by blocking the IL-10 receptor. "It significantly reduced the virus load in all the animals and in 50 percent of them it completely eliminated it,...

Rare cell prevents rampant brain activity

...ely complex network is regulated through a dynamic balance between excitatory signals, which are transmitted by one type of synapse, and inhibitory counter-signals, which are transmitted by another. An imbalance between excitatory and inhibitory activity is associated with diseases such as epilepsy, schiz...

In obesity, brain becomes 'unaware' of fat

...mone—causing a cascade of events that keeps energy balance in check—fails to engage. Meanwhile, the rest of t...e and energy expenditure, Cowley explained. Energy balance is regulated by neural and hormonal signals that are integrated in the brain. Leptin sends signal...

Human's ecological footprint in 2015 and Amazonia revealed

...rage in biomass and soils, the regulation of water balance and river flow, the modulation of regional climate patterns, and the amelioration of infectious diseases. ...

Cold sore virus might play role in Alzheimer's disease

...ve. The work suggests that ApoE-4 may alter the balance between the HSV life cycle forms. It's possible that the ApoE gene works as a sort of bodyguard that tries to keep cells safe from herpes, perhaps by facilitating latency. Somehow the ApoE-2 version is extremely effective at keeping the virus at bay,...

Angelman syndrome deficits rescued in mice

...rdation, severely limited speech, and movement and balance problems. In 1997, researchers determined that Angelman syndrome was caused by a mutation in a single gene, called UBE3A. They subsequently developed a mouse model of Angelman syndrome by mutating this gene. But the finding was baffling, said W...

Shedding new light on proteorhodopsin

...rhodopsin contributes to a bacterial cell's energy balance only under certain environmental conditions, namely when the cell's ability to respire has been impaired," said Jan Liphardt, a biophysicist who holds a joint appointment as a Divisional Fellow in Berkeley Lab's Physical Biosciences Division (PBD) an...

New findings blow a decade of assumptions out of the water

...ng within a few hundred miles of each other so the balance could be reached within a decade, the authors estimate. Deutsch compares the old assumption to a house where the thermostat is many rooms away from a window that has swung open, letting in cold air. The house could get quite chilly before the draft ...

Scripps research team discovers a chemical pathway that causes mice to overeat and gain weight

...es, but this did not burn enough extra calories to balance the additional eating, so the mice weighed 15 to 30 percent more than control mice. Determining why the lack of EP3 receptors causes increased activity and eating will likely take a great deal of experimentation. "It's a very complex phenomenon to...

New study may show how to forestall a fatal, virus-caused immune-system meltdown

...se strands is critical to diagnosing and restoring balance to an immune system gone haywire in a disease like Lassa fever. “Early on, you can’t really differentiate these nasty hemorrhagic fever viruses from their symptoms ?they just resemble the flu,?Herzog said. “But if you have biomarkers to go along with...

Exploring the molecular origin of blood clot flexibility

How do blood clots maintain that precise balance of stiffness for wound healing and flexibility to go with the flow? Researchers at the University of Pennsylvania School of Medicine and the School of Arts and Sciences have shown that a well-known protein structure acts as a molecular spring, explai...

HIV protein enlisted to help kill cancer cells

...y need to do it. Proteins like TAT-Bim can tip the balance in favor of death." To further enhance the cancer-killing power of TAT-Bim and similar proteins under development, Hawkins and his colleagues are working on a technique that will concentrate them within tumors while sparing healthy cells. In collab...

How genetic malfunction causes a form of retardation

... be found in NS patients disrupts the neuron-glial balance by further promoting the formation of neurons and inhibiting glial cell formation. The researchers also studied the effects of the mutation in mice engineered to mimic the human disorder. Like humans with NS, the mice had only one mutant copy of t...

Some caterpillers just don't want to grow up

...slow-developers after emergence would also tip the balance in favor of slow development. It is now a matter of further field and lab work to demonstrate that such benefits exist. ...

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