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Harmful in Biological News

Airway cells use 'tasting' mechanism to detect and clear harmful substances

The same mechanism that helps you detect bad-tasting and potentially poisonous foods may also play a role in protecting your airway from harmful substances, according to a study by scientists at the University of Iowa Roy J. and Lucille A. Carver College of Medicine. The findings could help explai...

Scientists report first remote, underwater detection of harmful algae, toxins

Scientists at NOAA's National Centers for Coastal Ocean Science and the Monterey Bay Aquarium Research Institute (MBARI) have successfully conducted the first remote detection of a harmful algal species and its toxin below the ocean's surface. The achievement was recently reported in the June issu...

Potentially harmful chemicals found in forest fire smoke

RICHLAND, Wash. -- Researchers have detected common plant toxins that affect human health and ecosystems in smoke from forest fires. The results from the new study also suggest that smoldering fires may produce more toxins than wildfires - a reason to keep human exposures to a minimum during contr...

'Hot spot' for toxic harmful algal blooms discovered off Washington coast

A part of the Strait of Juan de Fuca, which separates Washington state from Canada's British Columbia, is a potential "hot spot" for toxic harmful algal blooms affecting the Washington and British Columbia coasts. Marine scientists found that under certain conditions, toxic algal cells from an ...

International experts weigh-in on harmful algal blooms

Cambridge, Md. An international group of scientists is linking nutrient pollution in the world's coastal seas to an increase in the number of harmful algal blooms reported in recent years. When harmful algal blooms (HAB's) occur, they taint seafood with toxins, cause human respiratory and skin ir...

Breaking harmful bonds

Waltham, MAEverybody loves the way breakfast eggs conveniently slide off of Teflon without leaving any pesky pieces of egg in the pan. Indeed, the carbon-fluorine bond at the heart of Teflon cookware is so helpful we also use it in clothing, lubricants, refrigerants, anesthetics, semiconductors, a...

Certain anticancer agents could be harmful to patients with heart disease

A set of promising new anticancer agents could have unforeseen risks in individuals with heart disease, suggests research at Washington University School of Medicine in St. Louis. The anticancer drugs which go by the strange name of hedgehog antagonists interfere with a biochemical process that ...

Using carbon nanotubes to seek and destroy anthrax toxin and other harmful proteins

Troy, N.Y. Researchers at Rensselaer Polytechnic Institute have developed a new way to seek out specific proteins, including dangerous proteins such as anthrax toxin, and render them harmless using nothing but light. The technique lends itself to the creation of new antibacterial and antimicrobia...

Sandia research to focus on early detection of harmful algal blooms

Sandia National Laboratories researchers Todd Lane and Victoria VanderNoot have been awarded a research grant to develop a technology that can successfully detect deadly toxins from harmful algal blooms (HABs). The funding is provided by the Cooperative Institute for Coastal and Estuarine Environme...

Microbes transform 'safest' PBDEs into more harmful compounds

Bacteria in the soil can transform the most commonly used flame retardant compound in the United States into more toxic forms that could be harmful to humans, according to a new laboratory study published today on the Web site of the American Chemical Society journal, Environmental Science & T...

'Biobullets' fight harmful mussels

British researchers have developed a "biobullet" that could help control an invasive mollusk that has ravaged U.S. waterways for nearly two decades clogging water pipes, virtually wiping out some native mussels species and causing billions of dollars in industrial damage. The new microcapsules, whi...

DNA gene vaccine protects against harmful protein of Alzheimer's disease

Doses of DNA-gene-coated gold particles protect mice against a protein implicated in Alzheimer's disease, researchers at UT Southwestern Medical Center have found. By pressure-injecting the gene responsible for producing the specific protein ?called amyloid-beta 42 ?the researchers caused the mic...

UCSD study finds anthrax toxins also harmful to fruit flies

Deadly and damaging toxins that allow anthrax to cause disease and death in mammals have similar toxic effects in fruit flies, according to a study conducted by biologists at the University of California, San Diego. Their findings, which appear this week in an early online edition of the journal ...

Device traps, disables harmful bacteria

A team of engineers from Washington University in St. Louis and the University of Colorado at Boulder has removed bioaerosols -- airborne biological particulate matter -- from the air of a hospital therapy pool using a new generation of hybrid filters. The bioaerosols identified in the unnamed Mi...

Research Reveals Functions Of Harmful Shellfish Pathogens

Providing safer shellfish is the goal of Agricultural Research Service (ARS) scientists who are studying the means by which pathogenic bacteria enter shellfish. In the United States, two pathogenic bacteria from the genus Vibrio are of concern: V. vulnificus and V. parahaemolyticus. These bacteri...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

Dana-Farber Cancer Institute researchers have identified a molecular mechanism in the liver that explains, for the first time, how consuming foods rich in saturated fats and trans-fatty acids causes elevated blood levels of cholesterol and triglycerides and increases one's risk of heart disease and...

NIH stimulus funding supports Emory biomedical scientists

...s and videos targeted at infants are flourishing, despite the recommendation by the American Academy of Pediatrics that watching videos is potentially harmful to the development of children under the age of two. This study will provide critical experimental evaluation of the potential hazards, as well as the...

Growing evidence of marijuana smoke's potential dangers

...t challenges the increasingly popular belief that smoking marijuana is less harmful to health than smoking tobacco, researchers in Canada are reporting that sm...agues note that people often view marijuana as a "natural" product and less harmful than tobacco. As public attitudes toward marijuana change and legal restric...

Urban water ecology at the ESA annual meeting

...flows are a fact of life in urban areas, and in many cities, excess sewage water enters streams and lakes with rain runoff. Although this pollution is harmful to most organisms, there is one group of insects that thrives on it: mosquitoes. Luis Fernando Chaves, a post-doctoral researcher at Emory Universit...

Humans 'damaging the oceans'

...ange (IPCC), causing the most rapid global warming seen since the peak of the last Ice Age. At the same time the carbon is acidifying the oceans, with harmful consequences for certain plankton and shellfish. "At current emission rates it is possible we will pass the critical level of 450 parts per million...

Microbes and their hosts -- exploring the complexity of symbiosis in DNA and cell biology

...munity that populates the gingival crevice in the human mouth affect the ability of the natural immune defenses in the mouth to detect the presence of harmful bacteria and orchestrate their destruction. Author Richard Darveau, PhD, from the University of Washington in Seattle, describes this phenomenon as "a...

'Corrective genes' closer thanks to enzyme modification

...cGill University have re-engineered a human enzyme, a protein that accelerates chemical reactions within the human body, to become highly resistant to harmful agents such as chemotherapy, according to a new study published in The Journal of Biological Chemistry . "Our team modified and decoded an enzyme ...

Knee injuries may start with strain on the brain, not the muscles

...y injurious responses, said Scott McLean, assistant professor with the U-M School of Kinesiology. The fatigued subjects showed significant potentially harmful changes in lower body movements that, when preformed improperly, can cause ACL tears. "These findings suggest that training the central control p...

Improved air quality during Beijing Olympics could inform pollution-curbing policies

...el than at higher elevations, and diesel trucks are a major source of black carbon emission during the summer in Beijing. These particles are not only harmful to the lungs, but are also known to be a global warming compound, Zhang said. The researchers found that car emissions of black carbon were down 33...

Newly discovered gene fusion may lead to improved prostate cancer diagnosis

..., because many men may have an elevated PSA level, but have benign conditions such as inflammation of the prostate." It is important to distinguish harmful cancer from non-lethal diseases, such as benign prostatic hyperplasia, or enlarged prostate disease that exhibits similar symptoms to prostate cancer,...

Bad mitochondria may actually be good for you

...arious ages. What they found was that in young (3 month old) MCLK1-defective mice, mitochondria were quite energy inefficient and produced a lot of harmful oxygen radicals; yet surprisingly, when these mice were 23 months old, their mitochondria were working better than normal mice. So, despite the oxidat...

New research finds possible genetic link to cause of pregnancy loss and disorders

...achalam, working with pathologist Robert Donnell at the UT College of Veterinary Medicine and LBNL researcher Francesco Marchetti, also found that the harmful effects of this mutation increased with a mother's age. As the female mice got older, there was eventually a complete loss of their ability to support...

Iowa State University researchers develop process for 'surgical' genetic changes

... for canola meal. Other plants could benefit as well. Removing the genes that are responsible for peanut allergies, or removing genes that produce harmful chemicals or anti-nutritionals in other crops are just a few of the immediate crop improvements that Wright and Townsend envision for this technology....

University of Miami receives stimulus funds for study of hurricane impacts on structures, ecosystems

... The Center will also offer opportunities for collaborations in understanding the connections between the oceans and human health including studies of harmful algal blooms, the effects of toxins in the marine environment as well as developing aquatic animal models of human diseases such as neurodegeneration....

Munich researchers discover new target for tailored antibiotics

...ng target for a new class of antibiotics. The researchers present their results in the chemistry journal Angewandte Chemie . Antibiotics can hold harmful pathogens in check by interfering with their ability to produce essential compounds. Ever more bacterial strains are developing multiple antibiotic re...

Toxin detection as close as an inkjet printer

... may soon be used to develop paper-based biosensors that can detect certain harmful toxins that can cause food poisoning or be used as bioterrorism agents. ...s to provide a rapid, portable, disposable and inexpensive way of detecting harmful substances, including toxins, pathogens and viruses, without the need for s...

Virus-resistant grapevines

...pesticides. "Certain pesticides are necessary to fight GFLV infections," Schillberg explains. But they often only have a limited effect. They are also harmful to the environment and therefore banned in many regions. Countries like Chile, for example, which depend strongly on their winegrowing business, could...

NIH expands Human Microbiome Project; funds sequencing centers and disease projects

...al Vaginosis $980,000 This study will assess the vaginal microbiome and whether it contributes to the risk of bacterial vaginosis, a condition where harmful bacteria outgrow healthy bacteria. Bacterial vaginosis is a risk factor for pre-term delivery and sexually transmitted diseases. Julia Segre, Ph.D...

Athletes, spectators faced unprecedented air pollution at 2008 Olympic Games

...te matter (smaller than 2.5 microns), which is more easily inhaled into the lungs and causes more serious health problems. Levels of the smaller, most harmful particulate matter was also the least affected by government efforts to reduce pollution output, the study concluded. The finding of levels of poll...

Phthalic symbol

... Immobilized microbes can break down potentially harmful phthalates, according to researchers in China, writing in the International Journal of Environment and Pollution . The microbes might be used to trea...

NOAA forecast predicts large 'dead zone' for Gulf of Mexico this summer

...and forecast development for the dead zone in the Gulf of Mexico since 1990 and currently oversees the two national hypoxia programs authorized by the harmful Algal Bloom and Hypoxia Research and Control Act. Data from the U.S. Geological Survey on river flow and nutrient concentrations this spring was criti...

McGill University receives almost $63 million under CFI program to support five research projects

... Chair in Green Chemistry, virtually co-invented green chemistry, a movement that discovers new chemical reactions which allow chemists to switch from harmful petrochemicals and solvents to environmentally sound alternatives like water. Received $8,320,447. "The CFI's support of cutting-edge research i...

Antibiotics take toll on beneficial microbes in gut

...by. The microbes, including many different bacteria, aid digestion and nutrition, appear to help maintain a healthy immune system, and keep order when harmful microbes invade. "Biodiversity is a well-known concept in the health of the world's continents and oceans. Diversity is probably important in the ...

TRAPping proteins that work together inside living cells

...ers will only connect proteins close enough to work together, the thinking goes. But most crosslinkers are too large to squeeze into living cells, are harmful to cells, or link proteins that are neighbors but not coworkers. To address these issues, Mayer and her PNNL colleagues developed a crosslinking m...

From the glass to the brain in 6 minutes

...berg University Hospital (Medical Director: Prof. Dr. Martin Bendszus). The harmful effect also sets in quickly. During the experiment, the concentration of su...f cell membranes," says Dr. Armin Biller. Is all consumption of alcohol harmful for the brain? "Our follow-ups on the next day showed that the shifts in br...
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(Date:4/23/2014)... endogenous neural precursor cells cannot alone compensate for ... perspective of neural plasticity, Dr. Yun Xiang and ... the effects of functional electrical stimulation treatment on ... basic fibroblast growth factor and epidermal growth factor ... The researchers found that functional electrical stimulation can ...
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Breaking Medicine News(10 mins):Health News:Government and industry leaders herald launch of NJIT's New Jersey Innovation Institute 2Health News:Clinics not bogged down by red tape can ease health cost burdens 2Health News:Risk of pregnancy greater with newer method of female sterilization 2Health News:Risk of pregnancy greater with newer method of female sterilization 3Health News:Scientists alter fat metabolism in animals to prevent most common type of heart disease 2Health News:Scientists alter fat metabolism in animals to prevent most common type of heart disease 3Health News:Scientists alter fat metabolism in animals to prevent most common type of heart disease 4
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