when 2 7

Tag: "when" at biology news

First real-time view of developing neurons reveals surprises, say Stanford researchers

...ristopher Niell immobilized a young fish at an age when the nerves first grow from the eye to reach the br...respond to the LCD screen, they specifically fired when they sensed only one type of movement. When the tiny square moved left to right, a distinct populati...

New insight into people who 'see' colors in letters and numbers

...ith a form of synesthesia in which they see colors when viewing letters and numbers really do see colors, ... and colors. Some synesthetes report seeing colors when listening to music, or feeling tactile shapes while tasting food. This cross-activation might develo...

Study Models Impact Of Anthrax Vaccine

...ccineprevented few additional cases from occurring when compared to justrapid use of antibiotics. However, they found that if the vaccine is 95percent effective, it could reduce the time that antibiotics would beneeded up to 43 days.An 80 percent effective vaccine could reduce time on antibiotics by upto ...

Beyond lithium for bipolar disorder

...-to detect genes that were unequivocally activated when inositol was depleted in the brain slices. They discovered several genes that they concluded "suggest new directions toward the treatment of bipolar disorder." The behavior of one such activated gene, called GPR88, has been found to be associated w...

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

... distribution of mitochondria - changes that occur when a cell becomes cancerous," says Gourley. "One would think that if a cell became nonfunctional, it would become disorganized. In cancer, however, that's not the case. A cancer cell is like an insurgent terrorist with a very well-defined agenda. It re...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

... seeking the precise point during fibril formation when interactions between monomers become irreversible. Defining that point is important because "the fibrils are virtually indestructible once formed," he said. "How all these monomers interact to form these amyloid fibrils is just not known at this poi...

White blood cell waste disposal system plays critical regulatory role

...amount of IL-23 produced by phagocytes was reduced when phagocytes actively ingested apoptotic neutrophils. Interestingly, mice with abnormal neutrophils that lacked the ability to migrate into body tissues where they would have encountered phagocytes exhibited elevated IL-23 and IL-17 levels. When these ...

New RNA polymerase discovered in plants

...first noticed the evidence for a fourth polymerase when analyzing gene sequences after Arabidopsis thalian...s not share in the duties of Pol I, II or III. But when the Pol IV subunits are knocked out, the most tightly packed DNA in the nucleus becomes less condens...

NJIT Presidential Award winner takes stem cell research another step

...tem-cell discoveries: One showing that stem cells, when mixed with biomaterials known as scaffolds, can help regenerate bone growth; and another proving that stem cells taken from one person can be successfully implanted into another. A list of conditions for which stem-cell treatment holds promise grows ...

Bird Brains Show How Trial and Error May Contribute to Learning

... youth, which it performs repeatedly and intensely when females are listening. But occasionally, the finch...d noticed greater and more variable brain activity when the finches were singing to themselves compared to when they were serenading females. Kao wondered w...

The Bacteria's guide to survival

...a subset of 52 host genes that had higher activity when the host was infected with the normal bacteria, suggesting that the pulls of the pili were responsible. They then showed that an artificial mechanical pull on the host cell membrane could trigger a signaling cascade in the host cells to affect the ho...

TEL2 gene cooperates with MYC gene to provoke B-cell lymphomas

...e command to commit suicide. This situation occurs when increased TEL2 activity reduces the cell's ability to trigger apoptosis in response to relentless prodding by MYC to keep multiplying. As the process of apoptosis becomes sluggish, the population of B lymphocytes increases. The greater the number of ...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

...the information and technology we have to date, so when we open up the hood of these three organisms we ac...tive and poor vision," said Ideker. "Nevertheless, when we found protein interactions and communication pathways conserved across all three species we were ...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...of it organic matter in soil which can be released when the soil is disturbed, for example through wetlands drainage and destruction. Already, changes in land use and land cover account for about 1.6 gigatonnes (17%) of annual human-caused carbon emissions, the analysis says. And by 2100, "the terrestria...

Falling ants glide back to trunk to avoid dangers of forest floor

...nk," said Yanoviak via phone from Iquitos. "That's when I realized something was up with this behavior and... make 180 degree turns in midair, however, so even when they fail the first time, they can execute a mid-air hairpin turn and glide in for another try. "It...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

...ch bind transcription factors and thereby regulate when and where genes are expressed. Unlike coding sequences, whose signatures are easy to spot, the characteristic features of non-coding regulatory elements are largely unknown, making their discovery by simple sequence analysis difficult. In this issue,...

Scientists discover that host cell lipids facilitate bacterial movement

...nvelop the brain and spinal cord. Infection begins when the bacterium binds to a receptor on the surface o...rs also noticed that Listeria movement slowed down when the bacteria were treated with molecules that inhibited PI3-kinase, proving that Listeria depend on ...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...d we’ve looked at how those proteins are expressed when the organism is in an environment that closely mim...es compared the proteins secreted by P. gingivalis when grown in a medium containing human gum cell proteins with the proteins produced by the bacteria when...

Photos show jaguar vamping for camera

...than his home in Kaa-Iya National Park in Bolivia, when it plopped down in front of a remote "camera trap"...s earlier, the same cat languished for 90 minutes, when 19 photos were shot. Biologists from the Bronx Zoo-based Wildlife Conservation Society (WCS) are us...

UCSD team discovers specialized, rare heart stem cells in newborns

...ocedures. If the cells maintain pacemaker function when placed in the intact heart, they might serve as bi...t role in the remodeling of the heart after birth, when the newborn heart no longer relies upon the mother's circulation and oxygenation," Chien said. "We b...

1 2 3 4 5 6 7 8 9 10