Tag: "chemicals" at biology news
Beyond batteries: Storing power in a sheet of paper
... such as a pacemaker without introducing any harsh chemicals
such as the kind that are typically found in batteries into the body, Pushparaj said. The materials required to create the paper batteries are inexpensive, Murugesan said, but the team has not yet developed a way to inexpensively mass produce th...
Pollution causes 40 percent of deaths worldwide, study finds
...children. Air pollution from smoke and various chemicals
kills 3 million people a year. In the United States alone about 3 million tons of toxic chemicals
are released into the environment -- contributing to cancer, birth defects, immune system defects an...
Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
PHILADELPHIA − Concentrated chemicals
derived from green tea dramatically boosted produc... of 42 people, the concentrate − composed of chemicals
known as green tea catechins in amounts equal to that found in 8-16 cups of green tea − booste...
OHSU turns mouse into factory for human liver cells
...ug compounds. "Chemicals are converted to other chemicals
in the liver, and you can't predict how the compound you developed in the lab will be converted," Grompe said. "Often, it's not the drug that's toxic, but the resulting metabolites. The conversion of drugs cannot be predicted with any current technol...
Argonne wins three R&D 100 awards for innovative technologies
...s to covertly or overtly monitor the signatures of chemicals
emitted from suspect processing facilities, and may help to prevent additional nuclear proliferation. The technology also has environmental and biomedical applications. Developers are Argonne Senior Electrical Engineer Sami Gopalsami, Electrical...
American Chemical Society's Weekly PressPac -- Aug. 1, 2007
...th traditional methods for testing the toxicity of chemicals
in the environment, scientists are working to adap...nimals. As a result, only a handful of commercial chemicals
have gone through the complete battery of tests used by the Federal Governments National Toxicology ...
Pregnant mothers join search for causes of autism
...va Hertz-Picciotto, an expert on how environmental chemicals
affect child development and MARBLES principal inv...ary research center dedicated to finding how toxic chemicals
affect child development, including autism. B-roll: Opportunities will be offered to photograph U...
Not all embryonic stem cell lines are created equal
...ons derived from the two cell lines used different chemicals
called neurotransmitters to communicate with one another, he said. Sun and her colleagues compared the microRNAs produced by the two types of neurons. MicroRNAs are small snippets of genetic material that are believed to be significant regulators of ...
Genetic analysis finds greater threat in frog-killing fungus
...from global warming to pollution from agricultural chemicals
- could make native frog populations susceptible to a pathogen with which they've previously co-existed. According to the study, neither epidemic spread nor endemism alone explains the decline of these frogs. "We found sites dominated by a single...
Under magnetic force, nanoparticles may deliver gene therapy
...radable, so they break down into simpler, nontoxic chemicals
that can be carried away in the blood. Previous researchers had shown that magnetically driven nanoparticles could deliver DNA in cell cultures, but ours is the first delivery system that is biodegradable, and therefore, safer to use in people, said ...
Geisinger scientist seeks cure for Lou Gehrig's disease, creating device to find treatment
...entists to quickly expose zebrafish to ALS and mix chemicals
together. What once took weeks or months to screen thousands of potential cure-carrying chemical solutions may soon take days, and with far fewer research staff involved. A streamlined screening process will free up precious resources in the lab, ...
$9M grant awarded to University of Cincinnati for bipolar disorder research
...easure the locations and amounts of specific brain chemicals
based on their magnetic properties to study what bipolar disorder looks like in the brain, particularly in response to different treatments. Bipolar disorder is a condition thats very dynamic, says Strakowski. Symptoms are progressive and frequent...
More fish oil, less vegetable oil, better for your health
...getable oil in the diet decreases the formation of chemicals
called prostanoids, which, when produced in excess, increase inflammation in various tissues and organs. The results, by William L. Smith, Professor and Chair of Biological Chemistry at the University of Michigan, Ann Arbor, and colleagues, may help ...
Air pollution link to clogged arteries
...se particles are generally coated with a number of chemicals
such as organic hydrocarbons, transition metals, sulfates and nitrates. Organic hydrocarbons and transition metals inflame airways by generating reactive oxygen species and oxidative stress when combined with oxidised phospholipids in the arteries. T...
UCLA study links air pollution to clogged arteries
...ood into energy. Diesel particles are coated in chemicals
containing free radicals, and the fatty acids in L...ut we do know that these particles are coated with chemicals
that damage tissue and cause inflammation of the nose and lungs. Vascular inflammation in turn leads...
American Chemical Society's Weekly PressPac -- July 18, 2007
...irects its movement toward the presence of certain chemicals
in its environment. The study could provide a blue...erase valuable forensic clues, including traces of chemicals
that may be in the prints. In the new study, Sergei G. Kazarian of Imperial College London and colle...
Pediatric ritalin use may affect developing brain, new study suggests
...lner says. "First, we noticed alterations in brain chemicals
such as catecholamines and norepinephrine in the rats' prefrontal cortex -- a part of the mammalian brain responsible for higher executive thinking and decision-making. There were also significant changes in catecholamine function in the hippocampus,...
New clue into how diet and exercise enhance longevity
...that protects cells from damage by highly reactive chemicals
called free radicals. Our findings put a mechanism behind what your mother told when you were growing upeat a good diet and exercise, and it will keep you healthy, said White. Diet, exercise and lower weight keep your peripheral tissues sensitive to...
Manchester University helps with pharaoh DNA analysis
...mummification, said Dr Corthals. Ironically, the chemicals
that preserve the appearance of the mummies actually damage their DNA but the team was able to extract small amounts of genetic information from the areas of the mummies least affected by contamination. When the DNA of the mystery mummy was compare...
EPA foregoes opportunity to improve nanotechnology oversight
...mining whether nanoscale substances qualify as new chemicals
under TSCA on a case-by-case basis. According to former EPA official and Project on Emerging Nanotechnologies (PEN) senior advisor J. Clarence Davies, The agencys current practice is inadequate to deal with nanotechnology. It is essential that EPA...
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