A warming world may spell bad news for honey bees
2014-11-26
Researchers have found that the spread of an exotic honey bee parasite -now found worldwide - is linked not only to its superior competitive ability, but also to climate, according to a new study published in the journal Proceedings of the Royal Society B.
The team of researchers, including Myrsini Natsopoulou from the Martin-Luther-Universität Halle-Wittenberg, who co-led the research alongside Dr. Dino McMahon from Queen's University Belfast, believes that the parasite could become more prevalent in the UK in the future and their findings demonstrate the importance ...
New study examines the effect of timing of folic acid supplementation during pregnancy
2014-11-26
Taking folic acid before conception significantly reduces the risk of small for gestational age (SGA) at birth, suggests a new study published today (26 November) in BJOG: An International Journal of Obstetrics and Gynaecology (BJOG).
This UK population-based study and systematic review assessed the effect of timing of folic acid supplementation during pregnancy on the risk of the baby being SGA at birth, defined as birth weight less than the 10th centile or in the lowest 10% of babies born.
Being small for gestational age is associated with increased neonatal morbidity ...
Web-savvy older adults who regularly indulge in culture may better retain 'health literacy'
2014-11-26
The Institute of Medicine defines health literacy as the degree to which a person is able to obtain, understand, and process basic health information and services, so that s/he can make appropriate decisions about his/her health.
Low levels of health literacy among older adults are associated with poorer self-care, particularly of long term conditions, higher than average use of emergency care services, low levels of preventive care, and an overall increased risk of death.
The most important factor governing a decline in health literacy in later years is thought to ...
Reported link between early life exposure to paracetamol and asthma 'overstated'
2014-11-26
Respiratory infections are likely to have an influential role, the findings suggest. And the evidence is simply not strong enough to warrant changes to current guidance on the use of this medicine, say the researchers.
The use of paracetamol during pregnancy and/or a child's early life has been implicated in the development of childhood asthma, prompting concerns to be raised about the drug's continued use during these periods.
The researchers wanted to find out if the available evidence was sufficient to rule out the role of common respiratory infections, which paracetamol ...
The Lancet: Most comprehensive global study to date shows wide gulf in cancer survival between countries
2014-11-26
The most comprehensive international comparison of cancer survival to date, covering countries that are home to two-thirds of the world's population, shows extremely wide differences in survival between countries.
The CONCORD-2 study, published in The Lancet, reports 5-year survival estimates for 25.7 million cancer patients diagnosed with one of 10 common cancers [1] and 75 000 children diagnosed with acute lymphoblastic leukaemia between 1995 and 2009, using individual patient data from 279 cancer registries in 67 countries [2].
Even after researchers had adjusted ...
The Lancet Oncology: Overweight and obesity linked to nearly 500,000 new cancers in 2012
2014-11-26
Excess body weight causes around 481 000 new cancer cases a year in adults--or 3.6% of cancers worldwide--new estimates published in The Lancet Oncology suggest. The burden is far higher in more developed countries, with almost two-thirds (64%) of these obesity-related cancers occurring in North America and Europe.
Based on the results, the researchers led by Dr Melina Arnold from the International Agency for Research on Cancer (IARC), estimate that a quarter of all obesity-related cancers in 2012 (118 000 cases) were attributable to the rising average body mass index ...
Therapy found effective in older, African-American lung cancer patients
2014-11-26
CINCINNATI--University of Cincinnati (UC) researchers have found in a phase-2 clinical trial that a Food and Drug Administration-approved therapy could be effective in treating both older and African American patients with advanced lung cancer who may not be candidates for chemotherapy.
These findings are published Nov. 25, 2014, in the online journal Clinical Medicine Insights: Oncology.
Nagla Karim, MD, PhD, associate professor in the division of hematology oncology at the UC College of Medicine and member of the Cincinnati Cancer Center and the UC Cancer Institute, ...
Endangered Idaho salmon regaining fitness advantage
2014-11-25
Endangered Snake River sockeye salmon are regaining the fitness of their wild ancestors, with naturally spawned juvenile sockeye migrating to the ocean and returning as adults at a much higher rate than others released from hatcheries, according to a newly published analysis. The analysis indicates that the program to save the species has succeeded and is now increasingly shifting to rebuilding populations in the wild.
Biologists believe the increased return rate of sockeye spawned naturally by hatchery-produced parents is high enough for the species to eventually sustain ...
Full-day preschool linked with increased school readiness compared with part-day
2014-11-25
Children who attended a full-day preschool program had higher scores on measures of school readiness skills (language, math, socio-emotional development, and physical health), increased attendance, and reduced chronic absences compared to children who attended part-day preschool, according to a study in the November 26 issue of JAMA.
Participation in high-quality early childhood programs at ages 3 and 4 years is associated with greater school readiness and achievement, higher rates of educational attainment and socioeconomic status, and lower rates of crime. Although ...
Study examines FDA influence on design of pivotal drug studies
2014-11-25
An examination of the potential interaction between pharmaceutical companies and the U.S. Food and Drug Administration (FDA) to discuss future studies finds that one-quarter of recent new drug approvals occurred without any meeting, and when such meetings occurred, pharmaceutical companies did not comply with one-quarter of the recommendations made by the FDA regarding study design or primary outcome, according to a study in the November 26 issue of JAMA.
To enhance protocol quality, federal regulations encourage but do not require meetings between pharmaceutical companies ...
Satellite views early Thanksgiving travel trouble areas in US
2014-11-25
As the U.S. Thanksgiving holiday approaches this Thursday, November 27, NOAA's GOES-East and GOES-West satellites are keeping a weather eye out for storms that may affect early travelers. In an image from Nov. 25, the satellites show an active weather pattern is in place for travelers across the central and eastern U.S.
NOAA's GOES-East satellite provides visible and infrared images over the eastern U.S. and the Atlantic Ocean, while NOAA's GOES-West satellite covers the western U.S. and Pacific Ocean from its fixed orbit in space. Data from both satellites were combined ...
New insights into breast cancer spread could yield better tests and treatments
2014-11-25
November 25, 2014--(BRONX, NY)--A study combining tumor cells from patients with breast cancer with a laboratory model of blood vessel lining provides the most compelling evidence so far that a specific trio of cells is required for the spread of breast cancer. The findings could lead to better tests for predicting whether a woman's breast cancer will spread and to new anti-cancer therapies. The study, led by researchers at the NCI-designated Albert Einstein Cancer Center and Montefiore Einstein Center for Cancer Care(MECCC), was published online today in Science Signaling.
According ...
Penn researchers identify protein that predicts post-concussion severity in professional athletes
2014-11-25
PHILADELPHIA - New Penn Medicine research has found that elevated levels in the blood of the brain-enriched protein calpain-cleaved αII-spectrin N-terminal fragment, known as SNTF, shortly after sports-related concussion can predict the severity of post-concussion symptoms in professional athletes. The complete findings were released today in the Journal of Neurotrauma.
This new study builds on previous research from this group showing that elevated blood levels of SNTF on the day of a mild traumatic brain injury treated in the emergency room predicted those ...
Novel type 1 diabetes treatment shown to work on human beta cells transplanted into mice
2014-11-25
TORONTO, Nov. 29, 2014--A chemical produced in the pancreas that prevented and even reversed Type 1 diabetes in mice had the same effect on human beta cells transplanted into mice, new research has found.
GABA, or gamma-aminobutryic acid, is an amino acid produced by the same beta cells that make and secrete insulin.
Drs. Gerald Prud'homme and Qinghua Wang of the Keenan Research Centre for Biomedical Sciences of St. Michael's Hospital published a paper in 2011 showing for the first time that GABA injections not only prevented Type 1 diabetes in mice, but even reversed ...
Lawrence Livermore researchers develop efficient method to produce nanoporous metals
2014-11-25
LIVERMORE, Calif. - Nanoporous metals -- foam-like materials that have some degree of air vacuum in their structure -- have a wide range of applications because of their superior qualities.
They posses a high surface area for better electron transfer, which can lead to the improved performance of an electrode in an electric double capacitor or battery. Nanoporous metals offer an increased number of available sites for the adsorption of analytes, a highly desirable feature for sensors.
Lawrence Livermore National Laboratory (LLNL) and the Swiss Federal Institute of ...
Entrepreneurs to venture capitalists: Don't be a Scrooge
2014-11-25
WACO, Texas (Nov. 25, 2014) - Note to venture capitalists: Entrepreneurs are watching to see if you're naughty or nice.
A recently published study of more than 550 decisions and responses from 144 experienced entrepreneurs reveals that "knowledge of explicit ethical or unethical behavior (by venture capitalists) profoundly shapes the entrepreneurs' willingness to partner."
Baylor University researcher Matthew S. Wood, Ph.D., assistant professor of entrepreneurship in Baylor's Hankamer School of Business, co-authored the study, "Take the money or run? Investors' ethical ...
Powdered measles vaccine found safe in early clinical trials
2014-11-25
A measles vaccine made of fine dry powder and delivered with a puff of air triggered no adverse side effects in early human testing and it is likely effective, according to a paper to be published November 28 in the journal Vaccine. The paper is now available online.
In 2013, measles killed 145,700 people, most of them children, according to the World Health Organization. That's despite the fact that the conventional injectable vaccine against the measles virus is effective.
"Delivering vaccines in the conventional way, with needle injections, poses some serious challenges, ...
Obstructive sleep apnea treatments may reduce depressive symptoms
2014-11-25
Treatment for obstructive sleep apnea with continuous positive airway pressure (CPAP) or mandibular advancement devices (MADs) can lead to modest improvements in depressive symptoms, according to a study published by Marcus Povitz, Carmelle Bolo, and colleagues from University of Calgary, Canada, in this week's PLOS Medicine.
The researchers identified 22 randomized controlled trials that investigated the effects of CPAP or MAD treatment on patients with obstructive sleep apnea and that measured depressive symptoms before and after treatment. By pooling the results from ...
International collaboration completes genome sequence of centipede
2014-11-25
HOUSTON - (Nov. 25, 2014) - An international collaboration of scientists including Baylor College of Medicine has completed the first genome sequence of a myriapod, Strigamia maritima - a member of a group venomous centipedes that care for their eggs - and uncovered new clues about their biological evolution and unique absence of vision and circadian rhythm.
Over 100 researchers from 12 countries completed the project. They published their work online today in the journal PLOS Biology.
"This is the first myriapod and the last of the four classes of arthropods to have ...
Blind scottish centipede unlocks clues to the origins of creepy crawlies
2014-11-25
The arthropods are one of Earth's real success stories, with more species of arthropod than in any other animal phylum, but our knowledge of arthropod genomes has been heavily skewed towards the insects. Recent work has furnished us with the genome sequences of an arachnid and a crustacean, but the myriapods (centipedes and millipedes) have remained the one class of arthropods whose genomes are still in the dark.
An international team of scientists (over 100 from 15 countries) with Stephen Richards (Baylor College of Medicine) as senior author has now sequenced the genome ...
Centipede's genome reveals how life evolved on our planet
2014-11-25
Centipedes, those many-legged creatures that startle us in our homes and gardens, have been genetically sequenced for the first time. In a new study in the journal PLoS Biology, an international team of over 100 scientists today reveals how this humble arthropod's DNA gave them new insight into how life developed on our planet.
Centipedes are members of the arthropods, a group with numerous species including insects, spiders and other animals. Until now, the only class of arthropods not represented by a sequenced genome was the myriapods, which include centipedes and ...
Mere expectation of treatment can improve brain activity in Parkinson's patients
2014-11-25
Learning-related brain activity in Parkinson's patients improves as much in response to a placebo treatment as to real medication, according to a new study by researchers at the University of Colorado Boulder and Columbia University.
Past research has shown that while Parkinson's disease is a neurological reality, the brain systems involved may also be affected by a patient's expectations about treatment. The new study, published in the journal Nature Neuroscience, explains how the placebo treatment -- when patients believe they have received medication when they have ...
Endangered species success: Idaho salmon regaining fitness advantage
2014-11-25
Endangered Snake River sockeye salmon are regaining the fitness of their wild ancestors, with naturally spawned juvenile sockeye migrating to the ocean and returning as adults at a much higher rate than others released from hatcheries, according to a newly published analysis. The analysis indicates that the program to save the species has succeeded and is now shifting to rebuilding populations in the wild.
Biologists believe the increased return rate of sockeye spawned naturally by hatchery-produced parents is high enough for the species to eventually sustain itself in ...
Homeless, mentally ill women face vicious cycle in India
2014-11-25
MAYWOOD, Il. - An award-winning study by a Loyola University Chicago Stritch School of Medicine researcher has documented how homeless, mentally ill women in India face a vicious cycle:
During psychotic episodes, they wander away from home, sometimes for long distances, and wind up in homeless shelters. They then are returned to their families before undergoing sufficient psychosocial rehabilitation to deal with their illness. Consequently, they suffer mental illness relapses and wind up homeless again.
"The study illustrates how there must be a balance between reintegrating ...
Another reason to be thankful: Turkeys may be lifesavers
2014-11-25
While the turkey you eat on Thursday will bring your stomach happiness and could probably kick-start an afternoon nap, it may also save your life one day.
That's because the biological machinery needed to produce a potentially life-saving antibiotic is found in turkeys. Looks like there is one more reason to be grateful this Thanksgiving.
"Our research group is certainly thankful for turkeys," said BYU microbiologist Joel Griffitts, whose team is exploring how the turkey-born antibiotic comes to be. "The good bacteria we're studying has been keeping turkey farms healthy ...
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