Tag: "sends" at biology news

Gene-transcription machinery seen poised for action, held in check until needed

...action but held in check until a triggering signal sends it on its way down the linear DNA molecule. The data outline a mechanism by which sets of critical genes could be prepared for nearly instantaneous activation in response to stress or other vital needs. Embryonic stem cells, for example, are known...

Drug protects brain cells in Huntington's disease model, researchers find

...ntia nigra, which controls voluntary movements and sends signals to the striatum via nerve cells that release dopamine. The researchers conducted various coordination tests on both normal and genetically manipulated mice. Engineered mice given a drug that increased brain dopamine levels performed worse ...

New approach to pulmonary hypertension shows promise

... that keeps planes in the air that need to land or sends them to the wrong destinations and causes them to attack places they shouldn't," explained Michelakis, the Canada Research Chair in Pulmonary Hypertension. Multiple abnormalities have been described in pulmonary hypertension, making the treatment d...

New tumor markers -- 'Spot the differences'

...ey receive from their surroundings, each cell type sends only specific messages at any one time. While in normal cells this process is carried out following an organized pattern, this pattern of messages changes completely in cancer cells. When pancreatic cells transform into cancer cells, they abandon the...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...ne end (the outer segment) which detects light and sends signals to the brain, a function requiring a large amount of energy. "LCA is usually a disease where protein function has been lost completely, but carriers of just one copy of the mutation, who will almost certainly have reduced protein levels, ne...

Researchers examine carbon capture and storage to combat global warming

... from a mix of waste gases. The most common method sends the exhaust through a chimney containing a three-dimensional mesh. As the gas goes up, a chemical solvent drizzles down, soaking up the gas where the two substances meet. The carbon dioxide is then extracted from the liquid and compressed, now ready ...

Salty oceans provide early warning for climate change

...lt generates a pressure gradient in the ocean that sends energy to the north without water actually being transported, explains Zahn. Regardless of whether ocean circulation speeds up or slows down it causes significant climate change, altering the hydrological cycle and affecting atmospheric circulatio...

Analysis reveals extent of DNA repair army

...mage response to a command and control center: "It sends out sensors and sends out an alarm to start activating different repair pathways." Elledge explained that two critical en...

'Nondanger' signal lowers immune reactions

...rs have discovered that a well-known cell receptor sends a signal to dampen the immune system. While not...that when we stimulate CR3 on dendritic cells, CR3 sends a nondanger signal that suppresses the ability of dendritic cells to set off an immune response," ad...

Scripps research team sheds light on long-sought cold sensation gene

...he activation of the sensory neuron, which in turn sends a signal to the brain. The Patapoutian teams results support the idea that activation of TRPM8 by temperature triggers cold sensation. "TRPM8 acts as a gate," says Dhaka, "At warm temperature it remains closed, but opens when exposed to cool temperat...

Reversing cancer cells to normal cells

...odal, the presence of the Nodal and the signals it sends and receives appear to play a key role in tumor cell plasticity and progression. Most noteworthy, Dr. Hendrixs teams also has shown that inhibition of Nodal signaling leads to a reduction in melanoma cell invasiveness and ability to create new tu...

Scientists unravel clue in cortisol production

...es many reactions and begins when the hypothalamus sends a signal to the adrenal glands. Proteins then flood into the nucleus to bind to the DNA, creating the gene CYP 17. What happens next is well understood; CYP 17, along with a battery of other enzymes, transforms cholesterol into cortisol. But what isn...

Bronfman gift to Mount Sinai catalyzes genomics-based medicine

...ades." "Its called a leadership grant because it sends a clear message to the world that medical innovation can not happen without the dedication and support of community visionaries," said Dennis S. Charney, M.D., Dean of Mount Sinai School of Medicine and Executive Vice President for Academic Affairs o...

Deflecting damage: Flexible electronics aid brain injury research

...ronic "skin" that senses touch and temperature and sends that information back to the brain like any natural human limb. "A basic problem with the interface between electronics and living tissue is that electronics are hard and tissues are soft," he said, noting that nerve cells quickly become irritated...

UNC scientists discover cellular 'SOS' signal in response to UV skin damage

... to replicate its DNA, the Timeless/Tipin complex sends a signal throughout the nucleus of the cell to slow the rate of replication. This slowdown may give the cell additional time to repair its DNA and potentially save itself from becoming cancerous or from dying in response to ultraviolet radiation. "...

Microfluidic chip helps solve cellular mating puzzle

...ner picks up this "scent," it alters its shape and sends a projection toward the source of the pheromone, leading to a cellular merger. This mating process is regulated by proteins inside the cell called mitogen-activated protein kinases, or MAPKs, through a chain of chemical reactions. First, sensors on...

Robotic cameras join search for 'Holy Grail of bird-watching'

...eening of the images from the hard drive, and then sends the data to researchers at Cornell, Texas A&M and UC Berkeley. And what if a high-quality image of the ivory-billed woodpecker is captured? "If something really interesting is in the frame, Cornell makes the call (on the identity of the bird)," sai...

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

...sease. All too often, a sudden immune overreaction sends the infected person into a shock-like state from which he or she may never recover. Now, researchers at the University of Texas Medical Branch at Galveston (UTMB) believe theyve found a way to spot the biochemical profile of an inappropriate immune...

Microsurgery and Super Glue show how antennae aid moth navigation

...ss to the entire FM band, but the Johnston's organ sends signals to the brain on a narrower frequency, concentrated at roughly twice the speed of the insect's wing beats. The brain pays particular attention to those signals, the scientists found, like tuning a radio to a specific FM station. "There is c...

Mutant gene shatters nerves

...f wiring the nervous system. As a neuron grows, it sends out a "growth cone" which pulls the growing axon behind it. The axon must be able to withstand stretching. How it does that has been a mystery ? until now. In the new study, the Utah biologists used mutant nematode worms lacking beta spectrin. T...

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(Date:4/22/2014)... in two Minnesota cities demonstrate how communities can ... a ten year program in New England and ... to local conditions. , "Our goal is to ... said program co-leader Latham Stack, of Syntectic International, ... worsened. We help communities move beyond feeling paralyzed ...
(Date:4/21/2014)... is commonly used as a farm soil fertilizer, contains ... from the cows, gut bacteria. The findings, reported in ... American Society for Microbiology, hints that cow manure is ... genes that transfer to bacteria in the soils where ... (AR) genes have already been identified, but the vast ...
(Date:4/21/2014)... are on the decline in the Galpagos. , A new ... indicates numbers of the iconic birds, known for their ... attract mates, have fallen more than 50 percent in less ... is probably due to an unexplained disappearance of sardines from ... at Wake Forest University and the study,s principal investigator. This ...
Breaking Biology News(10 mins):Minnesota projects offer hope and practical help to communities facing more extreme storms 2Cow manure harbors diverse new antibiotic resistance genes 2Cow manure harbors diverse new antibiotic resistance genes 3Lack of breeding threatens blue-footed boobies' survival 2Lack of breeding threatens blue-footed boobies' survival 3
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