Bisphenol A (BPA) at very low levels can adversely affect developing organs in primates
2014-02-27
COLUMBIA, Mo. – Bisphenol A (BPA) is a chemical that is used in a wide variety of consumer products, such as resins used to line metal food and beverage containers, thermal paper store receipts, and dental composites. BPA exhibits hormone-like properties, and exposure of fetuses, infants, children or adults to the chemical has been shown to cause numerous abnormalities, including cancer, as well as reproductive, immune and brain-behavior problems in rodents. Now, researchers at the University of Missouri have determined that daily exposure to very low concentrations of ...
Household wealth still down 14 percent since recession
2014-02-27
COLUMBUS, Ohio – Household wealth for Americans still has not recovered from the recession, despite last summer's optimistic report from the U.S. Federal Reserve, a new study suggests.
Economists at The Ohio State University found that the mean net worth of American households in mid-2013 was still about 14 percent below the pre-recession peak in 2006. Their analysis suggested that middle-aged people took the biggest hit.
In a report last June, the Federal Reserve said that net worth of Americans – which includes the value of homes, stocks and other assets minus debts ...
IUPUI study reveals how dogs detect explosives, offers new training recommendations
2014-02-27
INDIANAPOLIS— A research team at Indiana University-Purdue University Indianapolis (IUPUI) has helped determine the science behind how canines locate explosives such as Composition C-4 (a plastic explosive used by the U.S. military). The study found the dogs react best to the actual explosive, calling into question the use of products designed to mimic the odor of C-4 for training purposes. These findings are the culmination of a four-year contract funded by the U.S. Department of Defense (DOD).
"Appropriately, dogs that are trained to find real explosives are going ...
Type 1 diabetes: Vitamin D deficiency occurs in an early stage
2014-02-27
Vitamin D is known as a major regulator of calcium levels and bone metabolism. Furthermore, it also influences the immune system. Previous studies have shown that patients with recently diagnosed type 1 diabetes have significantly lower vitamin D levels.
Scientists from the Institute of Diabetes Research (IDF) and the Helmholtz Zentrum München, a member of the German Center for Diabetes Research (DZD), as well as from the Diabetes Research Group at the Technische Universität München (TUM) examined whether a vitamin D deficiency occurs during an early stage of type 1 diabetes, ...
Scientists learn how pathogens hack our immune systems to go undetected
2014-02-27
A new report appearing in the March 2014 issue of The FASEB Journal helps shed light on what drives the evolution of pathogens, as well as how our bodies adapt to ward them off. Specifically, the report shows that our bodies naturally employ a mechanism, called "CD33rSiglecs," that not only dampens unwanted immune responses against one's own cells, but also evolves rapidly to recognize foreign invaders. What's more, the report explains how pathogens exploit this immunological "vulnerability" of "self-recognition" to evade our bodies' defenses. This leads to a seemingly ...
Scientists highlight the importance of nutrients for coral reefs
2014-02-27
A new publication from researchers at the University of Southampton and the National Oceanography Centre, Southampton highlights the importance of nutrients for coral reef survival.
Despite the comparably small footprint they take on the ocean floor, tropical coral reefs are home to a substantial part of all marine life forms. Coral reefs also provide numerous benefits for human populations, providing food for millions and protecting coastal areas from erosion. Moreover, they are a treasure chest of potential pharmaceuticals and coral reef tourism provides recreation ...
Mentoring the next generation of black chemists (video)
2014-02-27
WASHINGTON, Feb. 27, 2014 — The American Chemical Society (ACS) is wrapping up its celebration of Black History Month with a focus on the future. A new ACS video showcases the mentors that are helping shape the next generation of chemists and chemical engineers. The video is available at http://youtu.be/6pX4kmHIeAE.
The video, produced with the National Organization for the Professional Advancement of Black Chemists and Chemical Engineers (NOBCChE), highlights the efforts of Isiah Warner, Ph.D., Boyd Professor at Louisiana State University, to mentor students in the ...
Researchers X-ray living cancer cells
2014-02-27
Göttingen-based scientists working at DESY's PETRA III research light source have carried out the first studies of living biological cells using high-energy X-rays. The new method shows clear differences in the internal cellular structure between living and dead, chemically fixed cells that are often analysed. "The new method for the first time enables us to investigate the internal structures of living cells in their natural environment using hard X-rays," emphasises the leader of the working group, Prof. Sarah Köster from the Institute for X-Ray Physics of the University ...
Study projects big thaw for Antarctic sea ice
2014-02-27
Antarctica's Ross Sea is one of the few polar regions where summer sea-ice coverage has increased during the last few decades, bucking a global trend of drastic declines in summer sea ice across the Arctic Ocean and in two adjacent embayments of the Southern Ocean around Antarctica.
Now, a modeling study led by Professor Walker Smith of the Virginia Institute of Marine Science suggests that the Ross Sea's recent observed increase in summer sea-ice cover is likely short-lived, with the area projected to lose more than half its summer sea ice by 2050 and more than three ...
The pain of social exclusion
2014-02-27
We would like to do without pain and yet without it we wouldn't be able to survive. Pain signals dangerous stimuli (internal or external) and guides our behaviour. Its ultimate goal is to prioritize escape, recovery and healing. That's why we feel it and why we're also good at detecting it in others. Pain in fact protects not only the individual but also his social bonds. The brain contains circuits related to the more physical aspects of pain and others related to affective aspects. As observed in a study just published by Giorgia Silani, Giovanni Novembre and Marco Zanon ...
MIT political scientist proposes new polling method based on conjoint analysis
2014-02-27
Any analysis of exit polling reveals a welter of numbers whose meaning remains slightly elusive, with issues or candidate characteristics described as "very important," "somewhat important," or "not important at all" by voters. But it is not always clear how these findings fit together.
Now, a new paper co-written by an MIT political scientist suggests a way to assess the relative impact of several factors at once, using a method known as "conjoint analysis" that is not currently employed in political polling.
The method behind conjoint analysis is fairly simple: Respondents ...
'Oddball science' has proven worth, say UMass Amherst biologists
2014-02-27
AMHERST, Mass. ¬– Scoffing at or cutting funds for basic biological research on unusual animal adaptations from Gila monster venom to snail sex, though politically appealing to some, is short-sighted and only makes it more likely that important economic and social benefits will be missed in the long run, say a group of evolutionary biologists at the University of Massachusetts Amherst.
Writing in a recent issue of BioScience, researchers Patricia Brennan, Duncan Irschick, Norman Johnson and Craig Albertson argue that "innovations often arise from unlikely sources" and ...
Training begins for police officers to control bleeding of mass-casualty victims in the US
2014-02-27
CHICAGO (February 27, 2014) – For almost a year now, surgeons and first responder organizations have been working to increase the number of survivors of an active shooter or mass casualty incident. An important part of this initiative requires all law enforcement officers to get medical training and equipment to control bleeding, a goal set forth by the Hartford Consensus, a collaborative group of trauma surgeons, federal law enforcement, and emergency responders, and driven by the American College of Surgeons (ACS), the Federal Bureau of Investigation (FBI), Major Cities ...
Property Market Insights - Perfect Time to Invest in Luxury Property in St. Tropez
2014-02-27
Luxury property expert William McIntosh of Carlton International has announced that owners of luxury properties have reduced their prices by up to 250,000EUR until mid April.
McIntosh explains that the price drops indicate a very normal trend in the market on the French Riviera where luxury properties tend to sell better when the sun shines. It's a fantastic time to buy property in some of the most exclusive postcodes in the South of France before the spring-summer rush when there is more competition and prices naturally rise.
Speaking of the trend McIntosh stated ...
CNIO researchers discover new strategies for the treatment of psoriasis
2014-02-27
Almost ten years ago, the group led by Erwin Wagner, currently at the Spanish National Cancer Research Centre (CNIO), developed genetically modified mice showing symptoms very reminiscent to psoriasis. After publishing this discovery in Nature, the researchers decided to use this mouse model to study the underlying molecular pathways involved in disease development, and to look for innovative and efficient therapies. Now the group has discovered two possible novel treatments, based on existing pharmacological compounds, which are likely to cause fewer side effects.
Psoriasis ...
Scientists discover new protein involved in lung cancer
2014-02-27
Scientists from The University of Manchester – part of the Manchester Cancer Research Centre (MCRC) - have discovered a new protein that is involved in cancer and inflammation in lung tissue.
The findings, published in the Journal of Biological Chemistry, could help in the development of new drugs to target lung cancer.
Lung cancer is the most common cause of cancer death in Greater Manchester, with around 930 men and 790 women dying from the disease every year in the area.
While there have been major advances in treatments and outcomes for some cancers over the ...
Effective treatment for youth anxiety disorders has lasting benefit
2014-02-27
Washington D.C., February 27, 2013 – A study published in the March 2014 issue of the Journal of the American Academy of Child and Adolescent Psychiatry found that the majority of youth with moderate to severe anxiety disorders responded well to acute treatment with cognitive behavioral therapy (CBT), medication (sertraline), or a combination of both. They maintained positive treatment response over a 6 month follow-up period with the help of monthly booster sessions.
As part of the NIMH Child/Adolescent Anxiety Multimodal Study (CAMS), a group of researchers led by Dr. ...
New invasive species breakthrough sparks interest around the world
2014-02-27
A research breakthrough at Queen's University Belfast has sparked interest among aquatic biologists, zoologists and ecologists around the world.
The joint research between Queen's and several South African institutions centred on the behaviour of some of the "world's worst" invasive species, including the large-mouth bass, an invasive fish which typically devastates invertebrate and other fish communities wherever it is introduced.
Previously, the search for general characteristics of invasive species had been elusive, but work carried out by Professor Jaimie Dick ...
More dangerous chemicals in everyday life: Now experts warn against nanosilver
2014-02-27
Endocrine disrupters are not the only worrying chemicals that ordinary consumers are exposed to in everyday life. Also nanoparticles of silver, found in e.g. dietary supplements, cosmetics and food packaging, now worry scientists. A new study from the University of Southern Denmark shows that nano-silver can penetrate our cells and cause damage.
Silver has an antibacterial effect and therefore the food and cosmetic industry often coat their products with silver nanoparticles. Nano-silver can be found in e.g. drinking bottles, cosmetics, band aids, toothbrushes, running ...
Probing the edge of chaos
2014-02-27
The edge of chaos—right before chaos sets in—is a unique place. It is found in many dynamical systems that cross the boundary between a well-behaved dynamics and a chaotic one. Now, physicists have shown that the distribution—or frequency of occurrence—of the variables constituting the physical characteristics of such systems at the edge of chaos has a very different shape than previously reported distributions. The results, by Miguel Angel Fuentes from the Santa Fe Institute in New Mexico, USA, and Universidad del Desarrollo, Chile, and Alberto Robledo from the National ...
A novel treatment may reduce myocardial infarction size
2014-02-27
Researchers at the University of Eastern Finland (UEF) have developed a novel treatment for myocardial infarction. In a study carried out at the UEF, virus vectors were used in a mouse model to deliver small RNA molecules into the heart, and this significantly reduced the size of myocardial infarction. In the novel treatment method, RNA molecules are targeted at the regulatory area of the vascular endothelial growth factor gene (VEGF-A). These molecules use epigenetic mechanisms to enhance the production of the growth factor in cells.
The study also focused on the mechanisms ...
Over-80s often over-treated for stroke prevention
2014-02-27
People in their 80s are often prescribed drugs to ward off a stroke when the risk of a stroke is not that high and the drugs have other side effects, finds a perspective published online in Evidence Based Medicine.
People in this age group are being "over-treated," and doctors need to actively rethink their priorities and beliefs about stroke prevention, argues Dr Kit Byatt of the Department of Geriatric Medicine, The County Hospital in Hereford, UK.
Statins and antihypertensive drugs were the most commonly prescribed cardiovascular drugs in the UK in 2006. And they ...
Cesarean babies are more likely to become overweight as adults
2014-02-27
Babies born by caesarean section are more likely to be overweight or obese as adults, according to a new analysis.
The odds of being overweight or obese are 26 per cent higher for adults born by caesarean section than those born by vaginal delivery, the study found (see footnote).
The finding, reported in the journal PLOS ONE, is based on combined data from 15 studies with over 38,000 participants.
The researchers, from Imperial College London, say there are good reasons why many women should have a C-section, but mothers choosing a caesarean should be aware that ...
A road map -- and dictionary -- for the arthropod brain
2014-02-27
When you're talking about something as complex as the brain, the task isn't any easier if the vocabulary being used is just as complex. An international collaboration of neuroscientists has not only tripled the number of identified brain structures, but created a simple lexicon to talk about them, which will be enormously helpful for future research on brain function and disease.
Nick Strausfeld and Linda Restifo, both professors in the Department of Neuroscience at the University of Arizona, worked with colleagues in Japan who led the project, and colleagues in Germany ...
Low birth weight reduces ability to metabolize drugs
2014-02-27
PORTLAND, Ore. – Researchers have identified another concern related to low birth weight – a difference in how the body reacts to drugs, which may last a person's entire life and further complicate treatment of illnesses or diseases that are managed with medications.
The findings add to the list of health problems that are already known to correspond to low birth weight, such as a predisposition for adult-onset diabetes, hypertension, and obesity. The implication, researchers say, is that low birth weight may not only cause increased disease, but it may also lessen the ...
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