Tag: "sending" at biology news

Kinase backgrounder: Iressa discovery part of major kinase project at Dana-Farber

...s may get stuck in the "on" position, continuously sending signals for the cell to grow and divide, and leading to uncontrolled proliferation of cells and tumor formation. A "stuck" signal switch is often caused by a harmful change, or mutation, in the gene that makes the kinase. In the last decade or so, dr...

Fat cells heal skull defects in mice, Stanford research shows

...gan next to the brain, suggesting those cells were sending out bone growth-promoting signals and emphasizing the importance of the local environment in determining cell fate. "The analogy is one of seeds and soil," said Longaker. "The cells are the seeds, and the soil that enables them to form bone consists ...

Leading science, higher-education and engineering groups urge six improvements to U.S. visa quagmire

...ocity agreements between the United States and key sending countries, such as China and Russia, to extend the duration of visas each country grants citizens of the other, thereby reducing the number of times that visiting international students, scholars, and scientists must renew their visas. Problem:...

Germans must research the history of reproductive medicine during the Nazi era

...erman gynaecologists placed great hopes in Hitler, sending him their 'enthusiastic admiration' in a telegram," says Prof Winau. "The execution of the law on preventing genetic diseases in children is an example of the conformity of many Germany gynaecologists to the racial ideas and the concept of racial hyg...

Brain serotonin enzyme finding might explain psychiatric disorders

...lls called neurons. When stimulated, neurons fire, sending a wave of electrical charge from one end to the other. To bridge the gap between nerves, the neurons release chemical neurotransmitters, including serotonin, that set off an impulse in receiving neurons. Once the original cell has passed its message ...

Funding to commercialize technologies of UC San Diego engineers tops $1.2 million

... devices (e.g., 500 Hz and above), and because the sending and receiving electronics can be mounted at some distance from the high temperature process, only a small optical access is needed for the fiber-optical input and exit. The von Liebig Center grant will pay for proof-of-concept and prototyping work, i...

'Anti-plume' found off Pacific Coast

...e. "It's like an anti-plume," he said. "Instead of sending materials from within the Earth to the ocean floor, it simply sucks down the surrounding seawater." The researchers aren't sure exactly what causes the dilation, but it has multiple implications. First, it changes how scientists view seafloor spread...

Scientists pinpoint molecules that generate synapses

...and illicit drugs. "We knew that the apparatus for sending and receiving chemical and electrical signals was concentrated at the synapses where neurons connect with each other," Sanes says. "We wanted to determine how these special sites form." As the early nervous system develops into a dense tangle of neur...

Leptin and obesity

...e body's most powerful metabolism booster signals, sending a fast, strong message to the brain to burn calories. This message is then sent to another part of the hypothalamus, where another peptide is produced and released. This stimulates the pituitary gland, which secretes a hormone that relays the messag...

UCI study reveals gene linked to breast cancer can suppress tumors

... keeping estrogen and growth factor molecules from sending chemical messages through specific signaling pathways on the surface of breast cancer cells signals that can cause a tumor to grow. When the BRCA1 gene is mutated, however, it can no longer block this signaling activity from stimulating the growth a...

DuPont introduces in-home personal protection from dangers of hurricanes

...iles per hour, toppling trees and power lines, and sending debris flying through the air making many common items and building materials dangerous weapons. The DuPont TM StormRoom TM with Kevlar is an in-home storm shelter, available in several rectangular configurations, that features DuPont TM Kevlar ...

Cardiac arrest may hinder ability to learn certain tasks

...ritic spines projections from neurons involved in sending signal throughout the central nervous system and the body. There was an overall 18 percent decrease in dendritic spine density in the hippocampus in the cardiac arrest mice compared to the control mice, a finding that represents a functio...

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