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Scientists Program Blood Stem Cells To Become Vision Cells

August 3, 2009

University of Florida researchers have programmed bone marrow stem cells to build retinal pigment epithelial cells by mimicking the body’s natural signaling channels with chemicals instead of genetic manipulation.

Scientists propose new hypothesis on the origin of life

September 4, 2009

Life on Earth originated at photosynthetically-active porous structures made of zinc sulfide, similar to deep-sea hydrothermal vents, under the high pressure of a carbon-dioxide-dominated atmosphere, suggest scientists from the University of Osnabrueck, Germany and U.S. National Institutes of Health.

Scientists provide explanation for how cancer spreads

April 30, 2008

Metastasis, the spread of cancer throughout the body, can be explained by the fusion of a cancer cell with a white blood cell in the original tumor, according to Yale School of Medicine researchers.

Scientists put backpacks on dragonflies to track their brains in flight

June 18, 2013

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Neuroscientist Anthony Leonardo created the tiny dragonfly backpack above to study how circuits of neurons do rapid computations to catch a mosquito in air, Wired reports.

Electrodes inserted into the dragonfly’s body and brain record the electrical activity of neurons, and a custom-made chip amplifies the signals and transmits them wirelessly to a nearby computer.

The researchers came up with a clever solution to… read more

Scientists Quantify Nanoparticle-Protein Interactions

January 14, 2010

National Institute of Standards and Technology researchers have quantified the interaction of gold nanoparticles with important proteins found in human blood, an approach that should be useful in the development of nanoparticle-based medical therapies and for better understanding the physical origin of the toxicity of certain nanoparticles.

Scientists raise spectre of gene-modified athletes

November 30, 2001

We may be watching genetically-modified (GM) athletes as soon as the Beijing Olympics in 2008, researchers say. Gene doping, in which athletes could genetically modify themselves with performance-enhancing DNA, will be almost impossible to detect, according to Peter Schjerling at the Copenhagen Muscle Research Centre in Denmark.
Schjerling believes cheats will avoid detection by injecting themselves with copies of genes naturally present in the body, such as those encoding growth… read more

Scientists read dreams

Brain scans during sleep can decode visual content of dreams
October 23, 2012

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Scientists have learned how to discover what you are dreaming about while you sleep, Nature News reports.

Researchers led by Yukiyasu Kamitani of the ATR Computational Neuroscience Laboratories in Kyoto, Japan used functional neuroimaging to scan the brains of three people as they slept, simultaneously recording their brain waves using electroencephalography (EEG).

The researchers woke the participants whenever they detected the pattern… read more

Scientists read minds with infrared scan

February 11, 2009

Researchers at Canada’s largest children’s rehabilitation hospital have developed a technique that uses infrared light brain imaging to decode preference — with the goal of ultimately opening the world of choice to children who can’t speak or move.

Scientists release most accurate simulation of the universe to date

September 30, 2011

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The Bolshoi supercomputer simulation, announced Thursday, is the most accurate and detailed large cosmological simulation run to date, giving physicists and astronomers a powerful new tool for understanding such cosmic mysteries as galaxy formation, dark matter, and dark energy.

The simulation traces the evolution of the large-scale structure of the universe, including the evolution and distribution of the dark matter halos, in which galaxies coalesced… read more

Scientists Remotely Control Neurons and Animal Behavior

July 7, 2010

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Clusters of heated, magnetic nanoparticles targeted to cell membranes can remotely control ion channels, neurons and even animal behavior, according to a paper published by University at Buffalo physicists in Nature Nanotechnology.

The research could have broad application, potentially resulting in innovative cancer treatments that remotely manipulate selected proteins or cells in specific tissues, or improved diabetes therapies that remotely stimulate pancreatic cells to release insulin.… read more

Scientists Report a Crucial Gain in Growing Stem Cells

January 3, 2006

Scientists at a laboratory affiliated with the University of Wisconsin have developed a stem-cell culture medium free of animal cells and used it to derive two new human embryonic stem-cell lines.

The work is considered a crucial step in stem-cell research because it will allow growth of these cells without using animal products that can harbor viruses and other potential sources of problems.

Scientists Report Evidence of Saltwater Pools on Mars

March 25, 2004

Mars was once a much warmer, wetter place, with pools of saltwater that sometimes flowed across the surface, scientists reported Tuesday. It was the first concrete evidence that water might have flowed on the Martian surface, and it provided new hints that life may have existed there.

Scientists Report Gains in Knowledge of Bacterium

October 24, 2001

Scientists reported two major advances yesterday in their understanding of the anthrax bacterium — discoveries that could lead to the development of drugs custom-designed to interfere with the anthrax toxin at different stages of its operation.

Scientists from Harvard Medical School and the University of Wisconsin said that after a decade’s search they had found the receptor protein on the surface of cells that was targeted by the anthrax… read more

Scientists report partial reversal of age-related degeneration in aged mice

November 30, 2010

Scientists at Dana-Farber Cancer Institute say they have for the first time partially reversed age-related degeneration in mice, resulting in new growth of the brain and testes, improved fertility, and the return of a lost cognitive function.

In a report posted online by the journal Nature in advance of print publication, researchers led by Ronald A. DePinho, MD, said they achieved the milestone in aging science by engineering… read more

Scientists ‘reprogram’ mouse fat cells into clinically useful stem cells

July 27, 2010

Australian scientists from the Monash Institute of Medical Research have reprogrammed adult mouse fat cells and neural cells to become stem cells that can differentiate into a variety of different cells (pluripotency).

The induced pluripotent stem cells (iPS) are nearly identical to the naturally occurring pluripotent stems cells, such as embryonic stem cells, which are highly pluripotent, in short supply and their access restricted in the U.S.

“Induced… read more

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