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Lasting in Biological News

A longer lasting tumor blocker

On the heels of dismaying reports that a promising antitumor drug could, in theory, shorten patients' long-term survival, comes a promising study by a Japanese team of researchers that suggests a potentially better option. The study appears in the May 11 issue of the Journal of Experimental Medic...

Emotion and scent create lasting memories -- even in a sleeping brain

DURHAM, NC -- When French memoirist Marcel Proust dipped a pastry into his tea, the distinctive scent it produced suddenly opened the flood gates of his memory. In a series of experiments with sleeping mice, researchers at the Duke University Medical Center have shown that the part of the bra...

Prenatal cocaine's lasting cellular effects

Although the "crack baby" hysteria of the 1980s was greatly exaggerated, cocaine use during pregnancy can cause subtle but disabling cognitive impairments -- attention deficits, learning disabilities and emotional problems. A recent study by investigators at the Vanderbilt Kennedy Center for Res...

Morphine makes lasting -- and surprising -- change in the brain

Morphine, as little as a single dose, blocks the brain’s ability to strengthen connections at inhibitory synapses, according to new Brown University research published in Nature. The findings, uncovered in the laboratory of Brown scientist Julie Kauer, may help explain the origins of addiction in...

Prenatal exposure to marine toxin causes lasting damage

Duke University Medical Center researchers have found that the naturally occurring marine toxin domoic acid can cause subtle but lasting cognitive damage in rats exposed to the chemical before birth. Humans can become poisoned by the potentially lethal, algal toxin after eating contaminated shellfi...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

New research shows that farmers who used agricultural insecticides experienced increased neurological symptoms, even when they were no longer using the products. Data from 18,782 North Carolina and Iowa farmers linked use of insecticides, including organophosphates and organochlorines, to reports o...

UK bioscience sparkles with new Diamond fellowship

...that we nurture scientists throughout their careers, as they will be essential to helping us tackle the major challenges we face." The Fellowships, lasting from three to five years, allow researchers to concentrate exclusively on conducting world-class research to tackle serious scientific questions. The ...

Researcher finds Girl Scout meetings provide an opportunity to increase girls' physical activity

... be active, being active along with them and encouraging physical activity -- or at least not discouraging it. "The key for this project to achieve lasting effectiveness is to make an impact on the adults who structure the environments where children spend time; for this study these are the parents and tr...

Athletes, spectators faced unprecedented air pollution at 2008 Olympic Games

...aths per year, researchers said in their study. Of some note, the scientists said, is that efforts taken to constrain air pollution may be having a lasting value particulate matter air pollution in Beijing was as much as 27 percent lower last fall than in the same months a year earlier. Some of this, how...

Specific genetic cause of fetal alcohol-related developmental disorders found

...nt the study results, Laura Sittig, a student at Northwestern University Feinberg School of Medicine. Past animal research shows that some of these lasting cognitive impairments occur because alcohol consumption during pregnancy decreases the level of maternal thyroid hormones and, therefore, fetal thyroi...

Bisphenol A exposure in pregnant mice permanently changes DNA of offspring

...the mice gave birth, the scientists analyzed the uterus of female offspring and extracted DNA. They found that BPA exposure during pregnancy had a lasting effect on one of the genes that is responsible for uterine development and subsequent fertility in both mice and humans (HOXA10). Furthermore, these c...

Dioxins in food chain linked to breastfeeding ills

... has a profound effect on breast tissue by causing mammary cells to stop their natural cycle of proliferation as early as six days into pregnancy, and lasting through mid-pregnancy. In tissue samples from mice, exposure to dioxin caused a 50-percent decrease in new epithelial cells. This is important, Lawren...

'Jellyfish joyride' a threat to the oceans

...dence suggests that open-ocean ecosystems can flip from being dominated by fish, to being dominated by jellyfish," Dr Richardson says "This would have lasting ecological, economic and social consequences. "We need to start managing the marine environment in a holistic and precautionary way to prevent mor...

American Chemical Society's Weekly PressPac -- May 20, 2009

...redients from the human body for controversial ingredients in existing "composite," or plastic, fillings. The new material appears stronger and longer lasting as well, with the potential for reducing painful filling cracks and emergency visits to the dentist, the scientists say. Their study appears in the cu...

Synthetic catalyst mimics nature's 'hydrogen economy'

... of the paper. "The study of hydrogenases offers plenty of potential glamour such as the hydrogen economy, green energy and bio-fuel cells but the lasting breakthroughs result from manipulable mechanistic models like ours," said graduate student and co-author Matthew Whaley. "By building a model that con...

Can happiness be inherited?

...co, suggested that the hormones and chemicals resulting from happiness, depression and other mental states can affect our eggs and sperm, resulting in lasting changes in our children at the time of their conception. Brain chemicals such as endorphins, and drugs, such as marijuana and heroin are known to ...

Lab study shows THC exposure as adolescents linked to negative effects of THC as adults

... of THC and estrogen are different, depending on age, and, even more important, that THC use during adolescence, a critical period of development, has lasting effects on cognitive processes such as learning and memory. He believes that illicit use of THC during adolescence produces persistent changes in the ...

Joint statement by German science organizations on green genetic engineering

... reliable findings that would even remotely suggest the need to abandon the technology. A complete rejection of green genetic engineering would do lasting damage to Germany as a location for research. Genetic engineering techniques derived from molecular biology offer a unique opportunity to develop more...

Long-lasting nerve block could change pain management

... "The idea was to have a single injection that could produce a nerve block lasting days, weeks, maybe even months," explains Daniel Kohane, MD, PhD, of the Di...ction of encapsulated anesthetics. The best liposomes produced nerve blocks lasting two days if they contained saxitoxin alone and seven days if combined with ...

Ma and Pa solutions to global warming

...ects of the threats facing the world today, asserts Griffin. Addressing any of these three problems without facing up to the others will not provide a lasting solution and could make matters worse. In fact the US is facing a single crisis brought on by an overall design defect in the modern industrial machin...

Scripps scientists help decode mysterious green glow of the sea

...e clockwork in Southern California, the Caribbean and Japan, peaking one to two days before each quarter moon phase, 30 to 40 minutes after sunset and lasting approximately 20 to 30 minutes. Deheyn and Latz collected hundreds of specimens from San Diego's Mission Bay for their study, allowing them to not ...

Researchers discover link between schizophrenia and diabetes

...enatal famine and low birth weight, have both been shown to increase the risk of diabetes and schizophrenia. Problems in early development can leave a lasting impact." Establishing the link between the diseases may help scientists further understand the genetics of schizophrenia, he says. "And that ma...

Innerscope Research(R) Uses Same-Day Results From Biometric Study to Identify Key Themes, Styles Behind Effective, Engaging Speaker Presentations

...dience to action consistently register high engagement. "The results were truly eye-opening and have permanently influenced how I communicate for lasting impact at conferences," said Joel Rubinson, Chief Research Officer at the Advertising Research Foundation. Innerscope partnered with the ARF to e...

Arctic governments and industry still unprepared for oil spills 20 years after Exxon Valdez

...uch more vulnerable today," said Bill Eichbaum, WWF's vice president for marine and arctic policy. "Sea ice is disappearing and open water seasons are lasting longer, creating a frenzy to stake claims on the Arctic's rich resources especially oil and gas development. Oil spills can be devastating to Arctic ...

Heinz Maier-Leibnitz Prizes 2009: Six young researchers recognized for outstanding achievements

...active and exciting fields of research at the interface between mathematical stochastics and statistical physics, to which his work to date has made a lasting impact and major contribution. The KPZ class includes very important and interesting growth models such as directed polymers, percolation models and t...

Alzheimer's disease therapeutic prevents long-term damage from TBI in pre-clinical studies

...years, Burns says. This damage comes from apoptosis, which is a different form of cell death, and can result in large holes in brain tissue that cause lasting neurological effects. To date, there has been no way to prevent or treat this damage, he says. In this study, the investigators sought to understan...

Saving wheat crops worldwide

...le characteristics. Whereas one gene usually only protects against a single disease for a limited time under commercial production, Lr34 provides long lasting disease resistance and acts against multiple diseases. "The fungi that cause rust diseases are very adaptable and can rapidly evolve to overcome re...

Herpes virus: To vaccinate or not to vaccinate

...ith some further refinements about herpes' roles in preventing other infections: "We discovered that the effect of herpesvirus infection is transient, lasting only a few months. Interestingly, although the effect was shown by the Virgin group to be dependent on establishing a latent infection, it wanes despi...

Even natural perfumes may cause allergies

...ntial oils, many manufacturers believe that natural antioxidants in these oils offer protection against autoxidation thus making them safer and longer lasting than artificial perfumes. Research at the University of Gothenburg shows this is not the case. Lina Hagvall, a researcher at the University of Got...

Why you can't hurry love

...nimal species occurs over an extended period of time. Human courtship, for example, can involve a sequence of dinners, theatre trips and other outings lasting months or even years. One partner - often the male - may pay the greater part of the financial cost, but to both sexes there is a significant cost of ...

Growth of new brain cells requires 'epigenetic' switch

...genetic material. "How is it that when you see someone you met ten years ago, you still recognize them? How do these transient events become long lasting in the brain, and what potential role does the birth of new neurons play in making these memories?" says Hongjun Song, Ph.D., an associate professor o...

Sequence matters in droughts and floods

...ood and drought." In a greenhouse, Dr. Miao's team subjected seedlings to sequences of conditions that simulated drought and flood, with each phase lasting four months. The three species chosen for the experiments have varying tolerances to hydrological events. The pond-apple tree (annona glabra) tend...

Siblings of mentally disabled face own lifelong challenges, according to researchers

...s with mental illnesses were 63 percent more likely to report having a depressive episode during their lifetime. A depressive episode was described as lasting for at least two weeks and could include a variety of symptoms such as feeling lonely, crying and losing appetite. They also found the brothers an...

Researcher tricks immune system in diabetic mice

...ter than 70 percent -- maintained transplants long-term. His research showed the host's tolerance to these transplanted cells seemed to be permanent, lasting for at least 150 days. Xunrong Luo, assistant professor of medicine in nephrology at the Feinberg School, was co-principal investigator for the study....

New technique eliminates toxic drugs in islet transplant in diabetic mice

...ter than 70 percent -- maintained transplants long-term. His research showed the host's tolerance to these transplanted cells seemed to be permanent, lasting for at least 150 days. Xunrong Luo, assistant professor of medicine in nephrology at the Feinberg School, was co-principal investigator for the study....

International team discovers gene associated with epilepsy

... abnormally and cause repeated seizures that can include strange sensations, severe muscle spasms and loss of consciousness. The seizures may not have lasting effects but can affect activities, such as limiting a person's ability to drive. Most seizures do not cause brain damage but some types of epilepsy le...

Extreme weather postpones the flowering time of plants

...researchers were able to simulate an extreme dry period of 32 days and a period of extreme rain using artificial rain with 170 millimeters of rainfall lasting 14 days, corresponding to a local 100-year extreme weather event. Both simulations correspond to the historical highest values that were recorded in B...

Scientists identify cell changes leading to impaired 'artificial kidney' function

...dialysis clinic to have their blood cleaned through a special filter. This treatment requires three regular clinic visits per week, with each session lasting three to five hours. An alternative to this treatment involves creation of an "artificial kidney" in a process known as peritoneal dialysis (PD). F...

RSV may hide in the lungs, lead to asthma, UT Southwestern researchers report

...wisdom has been that respiratory syncytial virus (RSV) a common virus that causes infection in the lungs comes and goes in children without any long lasting impact. A study conducted in mice by UT Southwestern Medical Center researchers, however, suggests that RSV may hide in the lungs even after othe...

American Chemical Society Weekly PressPac Oct. 15, 2008

...ight from light emitting diodes (LEDs) applied daily for several weeks resulted in "rejuvenated skin, reduced wrinkle levels, juvenile complexion and lasting resilience." LEDs are the miniature lights used in an array of products, from TV remote controls to traffic lights. In the study, Andrei P. Sommer...
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