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Sleeping in Biological News

Dog owners more likely to share germs with pets by not washing hands than by sleeping with dog

MANHATTAN, KAN. -- Dog owners who sleep with their pet or permit licks on the face are in good company. Surveys show that more than half of owners bond with their pets in these ways. Research done by a veterinarian at Kansas State University found that these dog owners are no more likely to sha...

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...

New study suggests promising drug combinations for sleeping sickness

Results from a clinical trial evaluating new drug combinations for sleeping sickness, carried out by the international humanitarian medical aid agency Medecins Sans Frontieres (MSF), and its research arm, Epicentre, have now been published in the journal PLoS Clinical Trials. African trypanos...

Resistance and genetic sensitivity to sleeping sickness

Human African trypanosomiasis, more commonly called sleeping sickness, is induced by a parasite, the trypanosome, transmitted to humans by the bite of an insect, the glossinid tse-tse fly. There has been a resurgence of this disease over the past 20 years in Sub-Saharan Africa. The World Health Org...

A large step forward in the fight against African sleeping sickness

Each year, over 300,000 people die of African sleeping sickness (trypanosomiasis). Researchers from the Flanders Interuniversity Institute for Biotechnology (VIB) connected to the Free University of Brussels are making strides in the battle against this disease. They have coupled the human prote...

Waking a sleeping virus

Editor: Yeah, I hate it too when there's no picture in this kind of article A detailed structural picture of a molecule that plays a key role in activating the Epstein Barr Virus in human cells has now been obtained by researchers at the European Molecular Biology Laboratory (EMBL) and the Ins...

Compound might defeat African sleeping sickness, clinical trial beginning this month

One of the most devastating diseases in sub-Saharan Africa almost disappeared in the late 1950s. That disease, African sleeping sickness, or trypanosomiasis, largely succumbed to heroic public health efforts -- including relocating entire villages. But in the past several decades, because of post-c...

Newly discovered protein an important tool for sleeping sickness research

Sixty million people in 36 countries of sub-Saharan Africa are threatened daily by a deadly parasitic disease known as African sleeping sickness. The disease is caused by organisms called trypanosomes, which are spread by the tsetse fly. African sleeping sickness affects approximately 500,000 peopl...

Methods for gene transfer in stem cells featured in Cold Spring Harbor Protocols

...( http://www.med.umich.edu/cdb/sub_pages/People/krull.htm ) provides a method for stable integration and reliable long-term expression of a transgene. sleeping Beauty transposon-based transfection is a two-component system consisting of a transposase and a transposon containing inverted repeat/direct repeat s...

CU-Boulder study shows Maya intensively cultivated manioc 1,400 years ago

...ortance and reverence the Maya had for water," he said. The volcano at Ceren shrouded adobe structures, thatched roofs, house beams, woven baskets, sleeping mats, garden tools and grain caches. The height of the corn stalks and other evidence indicate the eruption occurred early on an August evening, he sa...

Re-awakening old genes to help in the fight against HIV

...sists HIV. Lead scientist Alexander Cole used aminoglycosides, drugs commonly used to fight bacterial infections, to trigger the production of the sleeping protein expressed by the retrocyclin gene. "It could make a huge difference in the fight against HIV," Cole said. "Much more work would be needed ...

New study reveals the protein that makes phosphate chains in yeast

...tial implications ranging from improving crops to fighting diseases such as sleeping sickness. Scientists have known for a long time how bacteria make phosp...he research could also pave the way for new treatments for diseases such as sleeping sickness and Chagas disease, as the parasites that cause them need polyphos...

Tufts students host Earth Day with groundbreaking ceremony for solar house

...d ultimately result in a higher energy yield. In addition to the projects being student directed, the competition requires that the houses include sleeping quarters, entertainment space, a kitchen and a bathroom. Preliminary construction of Curio House began several weeks ago inside a warehouse on the Tuf...

American Chemical Society Weekly PressPac -- April 15, 2009

...ceutical companies, government agencies and private donors in a new assault on neglected diseases. Those hard-to-treat diseases include leishmaniasis, sleeping sickness, and Chagas disease. These conditions infect millions of people worldwide each year, killing thousands. An article on this development is sch...

Brown-led team offers first look at how bats land

...niversity] People have always been fascinated by bats, but the scope of that interest generally is limited to how bats fly and their bizarre habit of sleeping upside down. Until now, no one had studied how bats arrive at their daytime perches. A Brown University-led research team is the first to document ...

Study finds life-saving trend among seagulls

...s? Dr. Beauchamp spent the last two summers tracking and studying gull behaviour in the Bay of Fundy. He compared the activity of gulls that were sleeping relative to the alertness of their neighbours. "Gulls sleep with one eye open and constantly scan the group. Based on my observations, we know now tha...

Mayo Clinic researchers suspect a novel gene is causing restless legs syndrome in a large family

... JACKSONVILLE, Fla. In 2005, a woman who had trouble sleeping asked Siong-Chi Lin, M.D., for help. Dr. Lin, a sleep disorders specialist...in's patient told him that many of her relatives also have the same trouble sleeping difficulties she could trace back through her ancestry. With the patien...

The global impact of climate change on biodiversity

...of moths from South East Asia, enabling the research team to identify the new samples. Armed with the data from 1965, moth-trapping equipment, tents, sleeping bags and rations, I-Ching and colleagues set out to repeat the original survey. "Photographs from the 1965 expedition led us back to exactly the s...

Mineral oil contamination in humans: A health problem?

...e Official Food Control Authority of the Canton of Zurich, Switzerland, titled "Does the Ukrainian sunflower oil contaminated with mineral oil wake up sleeping dogs?" discusses the situation. Dr. Koni Grob says that in many more foods more than 50 mg/kg mineral oil components from other sources will be found ...

Salk researcher Terry Sejnowski elected to Institute of Medicine

...s. He has created computer models of networks of neurons to explore the mechanisms underlying attention in the awake brain and brain rhythms in the sleeping brain and the links between them. These models also help explain how epilepsy arises from imbalances in brain circuits. Sejnowski's laboratory has ...

The truth about cats and dogs

...l for People Once familiar with each others' presence and body language, cats and dogs can play together, greet each other nose-to-nose, and enjoy sleeping together on the couch. They can easily share the same water bowl and in some cases groom each other. The far-reaching implications of this Tel Aviv Un...

Light receptors in eye play key role in setting biological clock, study shows

...treat the negative effects of shift work, aging and jet lag. About 20 to 25 percent of U.S. workers are shift workers, many of whom have difficulty sleeping during the day when they are not working, and likewise find it hard to stay alert at night while on the job. An estimated one in six people in the ...

In Vietnam, alongside progress, a battle for life

... taken loans to pay the patients contribution towards their treatment, so they live frugally - buying food from sellers outside the hospital gates and sleeping on day-beds in the corridors. Like Xuong, many are far from home and havent seen family or friends in months. Enlisting Partners in the Fight ...

Brain tweak lets sleep-deprived flies stay sharp

...urse of the night, with sleep cycles lasting 20-25 minutes. Also like humans, flies deprived of sleep one day will try to make up for the lost time by sleeping more the next day, a phenomenon referred to as increased sleep drive or sleep debt. For the new study, first author Laurent Seugnet, Ph.D., a postd...

Post-exercise caffeine helps muscles refuel

...the responses to caffeine ingestion vary widely between individuals. Indeed, while several of the athletes in the study said they had a difficult time sleeping the night after the trial in which they ingested caffeine (8 mg per kilogram of body weight, the equivalent of drinking 5-6 cups of strong coffee), se...

Brain stem cells can be awakened, say Schepens scientists

...lso found that removing these molecules (with a genetic tool) activated the sleeping stem cells. The team also found that astrocytes in the hippocampus pr...r of the two papers, The next step for the team will be to stimulate the sleeping stem cells in animals who are models of neurodegenerative disorders, such a...

Vanishing polar ice talk to be Webcast live, April 10

...alati, one of the world's pre-eminent experts on the study of global climate change, will present Dramatic Changes in Earth's Polar Ice: Are We Waking sleeping Giants? at 7:30 p.m., Thursday, April 10, in the Gore Recital Hall of the Louise and David Roselle Center for the Arts at UD. As head of NASA's Cry...

U of M research finds teens who have TV in their bedroom are less likely to engage in healthy habits

...its, study habits, grades, diet, exercise habits, and family connectedness. Nearly two-thirds of the participants had a television in their bedroom or sleeping area, and those who did watched four to five more hours of television each week. Girls with a TV in their bedrooms spent less time in vigorous act...

NYU dental professor discovers biological clock linking tooth growth to other metabolic processes

...ical rhythm, controls many metabolic functions and is based on the circadian rhythm, which is a roughly 24-hour cycle that is important in determining sleeping and feeding patterns, cell regeneration, and other biological processes in mammals. The newly discovered rhythm, like the circadian rhythm, origina...

NASA expert to address Earth's vanishing polar ice, April 10, at UD

...who is one of the world's pre-eminent experts on the study of global climate change, will present Dramatic Changes in Earth's Polar Ice: Are We Waking sleeping Giants? at 7:30 p.m. in the Gore Recital Hall at the University of Delaware's Louise and David Roselle Center for the Arts. Abdalati will highlight...

Selective restraints and reduced medication could reduce nursing home falls says 4-year study

...estraining elderly residents and giving them fewer sleeping pills could significantly reduce falls, according ...ments and the use of safety belts, wheelchairs and sleeping pills. Researchers analysed incidents affecting... drugs were much more likely to experience a fall. sleeping pills and anti-depressants made people 1.4 times m...

Stowers Institute's Hawley Lab identifies factors responsible for restart of meiotic cycle

... The Hawley Lab has described the dual actions of these two proteins as the sleeping Beauty Kiss that awakens the long-dormant egg, allowing for production of a...iologists for over a century because it raises the question of just how the sleeping oocyte is reawakened. The Hawley Lab addressed this question and determined...

The power of multiples: Connecting wind farms can make a more reliable - and cheaper - power source

... Its a bit like having a bunch of hamsters generating your power, each in a separate cage with a treadmill. At any given time, some hamsters will be sleeping or eating and some will be running on their treadmill. If you have only one hamster, the treadmill is either turning or it isnt, so the powers either...

Humans and monkeys share Machiavellian intelligence

...cal leaders use during the Renaissance. Alpha males, who rule the 50 or so macaques in the troop, use threats and violence to hold on to the safest sleeping places, the best food, and access to the females in the group with whom they want to have sex. Like human dictators intent on holding power, dominant...

Expecting an afternoon nap can reduce blood pressure

...(eight men, one woman) who did not routinely take afternoon naps. The volunteers attended the university laboratory on three separate afternoons after sleeping four hours the night before. The volunteers wore equipment that checked blood pressure, heart rate, and forearm cutaneous vascular conductance (which ...

Heaps of climate gas

... grassland soils really becomes a methane spring. For animal protection reasons, the placing of cattle in winter on pastures - with the possibility of sleeping in a cowshed or of obtaining feed there becomes increasingly popular. The over-wintering of bovine animals is quite widespread at least in the ecolog...

Researchers developing device to predict proper light exposure for human health

... as core body temperature variations, hormone production and secretion, and sleeping and waking patterns, among other functions in the human body requires simi...baseline circadian rhythms by collecting information regarding each persons sleeping and waking cycles, light intake, and fluctuations in sleep quality, stress ...

Restless legs syndrome affects nearly 2 percent of US/UK children

...t their symptoms began in childhood. In the early 1990s, Picchietti began to notice that some children who came to his office because they had trouble sleeping or paying attention in school had symptoms of RLS. But there was scant research on the prevalence of RLS in children. The new study included a rigo...

CU-Boulder team discovers first ancient manioc fields in Americas

...eren occurred on an early August evening because of the height of corn stalks and the fact that the farming implements had been brought inside but the sleeping mats had not yet been rolled out. Thus far 12 buildings at Ceren -- believed to have been home to several hundred people -- have been excavated, ...

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...nts itself as important news to tired new moms and dads for whom a soundly sleeping child spells out well-deserved respite it may carry even more value for ba... concerned about how their own mood-disturbance may harm their unborn babys sleeping habits, development and emotional health may want to consider psychological...
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