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Tag: "transformed" at biology news

Wisconsin scientists grow critical nerve cells

...tem cells from the embryonic stem cells. They then transformed the neural cells into progenitor cells of motor neurons, which in turn developed in a lab dish into spinal motor neuron cells. The newly generated motor neurons, according to Zhang, exhibit telltale electrical activity, a sign that the neurons, whic...

Study finds more than one-third of human genome regulated by RNA

...oRNA-like molecules called siRNAs. RNAi hasalready transformed how many labs are investigating gene functions, andsiRNAs are being developed for clinical applications. Learning moreabout how microRNAs operate in human cells should help scientists tounderstand how best to exploit siRNAs for treating disease....

NYU researchers simulate molecular biological clock

...oRNA-like molecules called siRNAs. RNAi hasalready transformed how many labs are investigating gene functions, andsiRNAs are being developed for clinical applications. Learning moreabout how microRNAs operate in human cells should help scientists tounderstand how best to exploit siRNAs for treating disease....

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...f nutrients coming from offshore," Croll said. "It transformed the plant community from one that does well in nutrient-rich conditions to one that does well in nutrient-depleted conditions." Foxes were first introduced to some of the islands by Russian fur traders in the mid- to late-18th century as a way to su...

NC State scientist finds soft tissue in T. rex bones

...issues didn't preserve ?the bones were essentially transformed into "rocks" through a gradual replacement of all organic material by minerals. New research by a North Carolina State University paleontologist, however, could literally turn that theory inside out. Dr. Mary Schweitzer, assistant professor of paleo...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

...and tuberculosis. The nine PSI pilot centers have transformed protein structure determination from a mostly manual process to a highly automated one. Robotic instruments rapidly clone, express, purify, crystallize, and analyze many proteins simultaneously, cutting the time it takes to determine a single protein...

New research indicates a 'troubled' greenhouse is brewing

...result, sagebrush deserts of the western U.S. were transformed into sub-humid woodlands." Retallack agrees with previous research indicating that the cause of the late Paleocene greenhouse spike, which lasted less than half a million years, was a catastrophic release of natural gas from undersea ices and permaf...

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

...d soybean, corn, sugar cane and cotton monoculture transformed millions of square kilometers of savannah, into open fields. Riparian forests along rivers have been cut down or degraded which has led to increased erosion and sedimentation, and disruption of the local hydrologic pattern. This has made navigation d...

World-first Living Donor Islet Cell Transplant A Success; Procedure Offers Promise For Diabetics

...gar coma attacks, and her glucose control has been transformed by the transplant. Related Web Site: http://www.med.ualberta.ca/islet ...

Alaskan puzzles, monitoring provide insight about North Pacific salmon runs

... healthy systems rather than rehabilitating highly transformed systems, Hilborn says. Other than fishing, the waterways studied by the Alaska Salmon Program are not subject to human activities such as dam building, logging or development. The money will help expand the scope of monitoring, fund new techniques f...

Stem cells from brain transformed to produce insulin at Stanford

...ntly published a report in which neural stem cells transformed into cells that line blood vessels - a far cry from a neuron. "That work gave us confidence that these cells could become more than neuronal cells," Kim said. Working with the cells in a lab dish, Kim and postdoctoral fellow Yuichi Hori, MD, PhD, no...

Heart repair gets new muscle

...or stem cells after all and that such cells can be transformed into cardiomyocytes. In a new study published in the premier open-access online journal PLoS Biology, Neal Epstein and colleagues report that a special group of cells (called skeletal precursors of cardiomyocytes, or Spoc cells) isolated from the sk...

Strongest proof yet found for prion hypothesis

...oteins. When the healthy proteins had been largely transformed into prions, the samples were diluted over and over again and the process repeated, until the only remaining prions were those that had been generated in the test tubes. These were then injected into the brains of healthy hamsters, which began showin...

Researchers Closer To Helping Hearing-Impaired Using Stem Cells

... clear whether, or how, the cells could be further transformed into useful specialized neurons. In a two-step process, Dr. Hashino and her colleagues first cultivated mouse marrow stromal cells with chemicals known to encourage stems cells to change into primitive neurons. The bone marrow cells took the shape a...

Analysis of flower genes reveals the fate of an ancient gene duplication

...uncommon event in which a single copy of a gene is transformed into two separate copies--is thought to play a key role in the evolution of new gene functions. Duplications are important because they effectively allow at least one of the gene copies to evolve while the (likely important) function of the original ...

Study shows eutrophic lakes may not recover for a millennium

...streams. It stimulates the growth of algae and has transformed many of the world's lakes from clear freshwater reservoirs to soupy, weed-choked pools. It contributes to oxygen depletion, which leads to fish kills, and can stimulate the growth of toxic algae. According to the study, industrial agriculture, with ...

The synapse is a shotgun

...alpha 7 and alpha 3. Sejnowski and his colleagues transformed their map into a functional computer model by incorporating the physiological details of neurotransmitter release sites and receptors. The researchers then compared the behavior of the model under different scenarios with the electrophysiological beh...

Tropical Deforestation affects rainfall in the U.S. and around the globe

...d one-half of our planet's land surfaces have been transformed by human development. Now, a new study is offering insight into the long-term impacts of these changes, particularly the effects of large-scale deforestation in tropical regions on the global climate. Researchers from Duke University, Durham, N.C., ...

Rutgers to lead $52.7 million protein research program

... NESG's director of crystallography. "The PSI has transformed protein structure determination into a highly automated process, making it possible to go from a selected target to a completed structure much more rapidly than before," said Jeremy M. Berg, director of NIGMS. "Building on these achievements, the new...

What can change in the brain? Electrical synapses, research shows

...ry information to the cerebral cortex, where it is transformed into memories and emotions, speech and movement. The thalamic reticular nucleus' role as a sort of switch, starting or stopping the flow of sensory stimuli to the cortex, may implicate it as a major player in the regulation of sleep and wakefulness,...

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