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Tag: "turning" at biology news

Ecological destruction fuels emerging diseases

...s ecological damage also endangers human health by turning parasites into "evolutionary land mines." Dr. Daniel (Dan) Brooks, a parasitologist at the University of Toronto, says the decline of global biodiversity is linked to the emergence of new human and wildlife diseases such as West Nile Virus and avian...

New Technique for Tracking Gene Regulators

...ocess of unraveling the role these proteinsplay in turning on and off the genes that establish the very identityof cells ?be they brain cells, liver, or blood ?as well as what mightgo awry in certain conditions like cancer. TheBrookhaven scientists, together with collaborators from Oregon Health& Scienc...

Purdue proves concept of using nano-materials for drug discovery

..., it mixed with the enzyme, causing a reaction and turning blue in the process, which demonstrated that the device works. The Center for Membrane Protein Biotechnology combines a diverse range of researchers, from engineers to chemists, and pharmaceutical scientists to physicists. The research is supported ...

Scientists discover the cellular roots of graying hair

...comedepleted, they also progressively make errors, turning into fullycommitted pigment cells in the wrong place within the hair follicle,where they are useless for coloring hair.The new findings won’t lead to a scientific alternative to hair dyesany time soon, if ever, even if they do solve a longstanding pu...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

...comedepleted, they also progressively make errors, turning into fullycommitted pigment cells in the wrong place within the hair follicle,where they are useless for coloring hair.The new findings won’t lead to a scientific alternative to hair dyesany time soon, if ever, even if they do solve a longstanding pu...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...comedepleted, they also progressively make errors, turning into fullycommitted pigment cells in the wrong place within the hair follicle,where they are useless for coloring hair.The new findings won’t lead to a scientific alternative to hair dyesany time soon, if ever, even if they do solve a longstanding pu...

U-M scientists find genes that control growth of common skin cancer

... an Hh pathway component, called Gli2 ,effectively turning it on or off at will in the skin. As expected,expression of Gli2 resulted in BCC formation. In addition, theresearchers found that sustained expression of Gli2 is necessary forthe continued growth of these tumors. When Dlugosz and colleaguesturned Gl...

Scientists develop new color-coded test for protein folding

...id were added, the solution began to change color, turning purple when the pH reached 5.8 and light blue at pH 4, which is close to the acidity of wine. Lab analysis revealed that additional hydrochloric acid was causing the cytochrome c molecules to unfold. As a result, gold nanoparticles coated with cytoch...

Researchers trace evolution to relatively simple genetic changes

.... It's a dramatic change: a row of 35 armor plates turning into a small handful of plates - or even no plates at all." Using genetic crosses between armored and unarmored fish from wild populations, the research team found that one gene is what makes the difference. "Now, for the first time, we've been abl...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

.... It's a dramatic change: a row of 35 armor plates turning into a small handful of plates - or even no plates at all." Using genetic crosses between armored and unarmored fish from wild populations, the research team found that one gene is what makes the difference. "Now, for the first time, we've been abl...

Studies reveal methods viruses use to sidestep immune system

... that the protein made by the gene is essential to turning on signals that tell the cell to mount an immune response. Cells with the mutated RIG-I protein were unable to initiate immune signals, abolishing the host cells' defenses to HCV. When HCV infects a cell, the RIG-I protein physically binds the virus...

LUCA technologies confirms real-time methane generation

...ng. Such Geobioreactors may offer the potential of turning currently finite energy reserves into methane "farms" capable of long-term, sustainable energy generation. "The hydrocarbon resources available in the Monument Butte oilfield are very large, making the possibility of shifting from oil production to ...

Buying Time Through Hibernation on Demand

...ly even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a member of Fred Hutchinson's Basic Sciences Division. During a hibernation-like state, cellular activity slows to a near standstill, which reduces dramatically an organism's need...

U-M team recovers ancient whale in Egyptian desert

...ly even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a member of Fred Hutchinson's Basic Sciences Division. During a hibernation-like state, cellular activity slows to a near standstill, which reduces dramatically an organism's need...

Defenseless plants arm themselves with metals

...acts with other molecules in the plant, eventually turning on the genes that produce the proteins involved in fighting infection. These infection-fighting proteins also turn off salicylic acid production, a phenomenon known as negative feedback. In this way, plants can turn the pathogen defense pathway on an...

Some Brain Cells 'Change Channels' To Fine-tune The Message

...t cells that die in Lou Gehrig's disease. Much as turning the television dial changes what comes into the living room, these brain cells are able to change what they allow in by swapping one kind of channel, or membrane opening, for another. Doing so lets the cells fine-tune their messages and adjust connec...

Double triumph in stem cell quest

...an enucleated ESC will reprogram the donor nuclei, turning the fused cell into an ESC too. The result, Verlinsky told a conference on pre-implantation genetics in London last week, is new lines of ESCs that are genetically identical to the adult donor. He calls the new cells stembrids. His claim stunned the...

At long last, scientists figure out how plants grow

... signals enzymes to destroy the repressor, thereby turning on the repressed gene. "The key interaction is between TIR1 and the repressor," Estelle said. "Nihal was able to get that to work in a test tube, but the interaction would only occur if he added auxin to the solution." Auxin may stick around awhile...

Doctors closer to using gene analysis to help trauma patients

...nd, scientists could see dramatic changes in genes turning on and off in trauma victims compared with healthy people. Among the trauma patients, researchers say “analytical noise??differences attributable to the testing method ?was not significant, suggesting that profiling gene reactions may provide meaning...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...it as electrons were removed by another electrode, turning it from an insulator to a strong conductor and then back into an insulator again. Given the measured electrical properties of the oligoaniline, Lindsay notes that if the molecule is maintained at its highly conductive state (at low voltage) and then...

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