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Science News | Science Current Events | Brightsurf | April 28, 2009

Excessive increase in heart rate before exercise doubles risk of sudden cardiac death in later life
A study of 7746 French male civil servants, published in the European Heart Journal on Wednesday, April 29, has found that men whose heart rate increased the most during mild mental stress just before an exercise test had twice the risk of dying of a sudden heart attack in later life than men whose heart rate did not increase as much.
GSU astronomy graduate student receives Hubble Fellowship to explore stellar sizes
Thanks to a prestigious fellowship awarded by NASA, Georgia State University's Tabetha Boyajian will help expand astronomers' knowledge about origins of our galaxy, and learn more about the stars which harbor planets outside of our solar system.
A longer lasting tumor blocker
On the heels of dismaying reports that a promising anti-tumor 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.
Google Earth aids discovery of early African mammal fossils
A limestone countertop, a practiced eye and Google Earth all played roles in the discovery of a trove of fossils that may shed light on the origins of African wildlife.
Toward a systems biology map of iron metabolism
Scientists at the Wake Forest University School of Medicine, the University of Manchester in the United Kingdom, and the Virginia Bioinformatics Institute at Virginia Tech have taken the first steps toward constructing a systems biology map of iron metabolism.
Ben-Gurion University research and technology used in new solar energy farm
ZenithSolar, an Israeli start-up company, launched its first
Poor sleep quality leads to poorer prognosis after stroke
Stroke victims tend to do worse if they also have diagnosed or undiagnosed obstructive sleep apnea prior to having the stroke, according to a study presented April 28, 2009, at the American Academy of Neurology annual meeting in Seattle.
For your health, pick a mate who is conscientious and, perhaps, also neurotic
Conscientiousness is a good thing in a mate, researchers report, not just because it's easier to live with someone who washes the dishes without being asked, but also because having a conscientious partner may actually be good for one's health.
Simple blood test proves powerful ally in the fight against malaria
Scientists at the Swedish medical university Karolinska Institutet have shown that rapid diagnostic tests for malaria infection can provide valuable support for health care in low and mid-income countries in the fight against the disease.
Evidence of the 'Lost World' -- did dinosaurs survive the end Cretaceous extinctions?
The idea of isolated communities of dinosaurs surviving the catastrophic extinction event 65 million years ago has stimulated a great deal of literary and cinematic drama.
Some short-term memories die suddenly, no fading
Researchers at the University of California, Davis, have found that the temporary, working memories that the brain uses to process visual information may last for several seconds with little or no loss of precision.
Arterial disease of the leg frequently overlooked in patients with heart disease
Early detection of PAD is important because it can limit the ability to walk and exercise, it may place patients at greater risk for limb loss and it increases the chance of having a heart attack or stroke.
New gamma-ray burst smashes cosmic distance record
NASA's Swift satellite and an international team of astronomers have found a gamma-ray burst from a star that died when the universe was only 630 million years old, or less than five percent of its present age.
Nanoneedle is small in size, but huge in applications
Researchers at the University of Illinois have developed a membrane-penetrating nanoneedle for the targeted delivery of one or more molecules into the cytoplasm or the nucleus of living cells.
Findings uncover new details about mysterious virus
An international team of researchers has determined key structural features of the largest known virus, findings that could help scientists studying how the simplest life evolved and whether the unusual virus causes any human diseases.
Dietary acrylamide not associated with increased lung cancer risk in men
Dietary acrylamide was not associated with an increased risk of lung cancer, according to data from a large prospective case-cohort study in the April 28 online issue of the Journal of the National Cancer Institute.
Experimental drug shows promise against head and neck cancer
A laboratory study by researchers at Albert Einstein College of Medicine of Yeshiva University suggests that an anti-cancer compound studied for treating blood cancers may also help in treating cancers of the head and neck.
Geoscientists meet to discuss Rocky Mountain geology
Geoscientists will gather May 11-13, 2009, for the 61st Annual Meeting of the Rocky Mountain Section of the Geological Society of America, being held in Orem, Utah.
World's largest DNA scan for autism uncovers new gene variant for disorder
UCLA scientists, in partnership with 30 research institutions across the country, have identified a new variant of gene CDH10 that is highly common in autistic children.
Stem cell focus for IBD wound healing
Scientists at the University of Nottingham are investigating whether stem cell markers could have a role to play in speeding up wound healing in patients suffering from inflammatory bowel disease.
Study examines radiation dose estimates for pregnant women undergoing therapeutic ERCP
Pregnant women with gallstone disease may require immediate endoscopic intervention because of potentially life-threatening cholangitis or gallstone pancreatitis.
APS commends President Obama's commitment to greater investment in science
The American Physical Society commends President Obama's commitment to doubling the budgets at key science and technology agencies; implementing policies that will enhance science and math education; and laying the foundation for directing more than three percent of the nation's gross domestic product to investments in research and development.
Study finds higher drug co-pays discourage patients from starting treatment
A new study finds that patients newly diagnosed with hypertension, diabetes or high cholesterol are significantly more likely to delay initiating recommended drug treatment if they face higher co-payments for medications.
HJF publishes handbook on managing pain of battlefield trauma
The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc. has released a one-of-a-kind publication intended to educate anesthesiology residents in the art and science of advanced battlefield regional anesthesia techniques and acute pain medicine.
Solomon earns accounting institute's top educator award
The head of the nationally ranked department of accountancy at the University of Illinois has earned the top award for educational excellence from the nation's largest accounting organization.
Seaglider monitors waters from Arctic during record-breaking journey under ice
The University of Washington has surpassed its own world record for operating a glider under the ice, this time by successfully operating one of its seagliders for six months as it made round trips hundreds of miles in length under the ice at Davis Strait.
Former EPA official calls for new environmental and consumer protection agency
Existing health and safety agencies are unable to cope with the risk assessment, standard setting and oversight challenges of advancing nanotechnology.
The most distant object yet discovered in the universe
ESO's Very Large Telescope has shown that a faint gamma-ray burst detected last Thursday is the signature of the explosion of the earliest, most distant known object in the universe (a redshift of 8.2).
Dr. Ramani Mani to receive AIAA aeroacoustics award
The American Institute of Aeronautics and Astronautics is pleased to announce that Dr.
Seaglider monitors climate-related ocean circulation in the Arctic
An intelligent, ocean-going glider has spent more than five months on a record-breaking deployment to sample the icy waters off western Greenland.
Patent pending on URI engineers' system for combating manipulation of online product ratings
Online shoppers increasingly depend upon consumer-based rating systems that vendors like and eBay use to rate products and sellers.
SMU anthropology chair elected to NAS
David Meltzer's election to the National Academy of Sciences April 28 underscores the strength of Southern Methodist University's Anthropology Department: Meltzer is the department's third NAS member.
Study suggests left-side bias in visual expertise
These findings suggest that whether or not we use holistic processing depends on the task performed with the object and its features, and that holistic processing is not used in general visual expertise.
New diagnostic advance seen for head, throat cancer
Pharmacy researchers at Oregon State University today announced the discovery of a genetic regulator that is expressed at higher levels in the most aggressive types of head and neck cancers, in work that may help to identify them earlier or even offer a new therapy at some point in the future.
Depression linked with accumulation of visceral fat
Researchers at Rush University Medical Center have shown that depression is linked with the accumulation of visceral fat, the kind of fat packed between internal organs at the waistline, which has long been known to increase the risk of cardiovascular disease and diabetes.
Anti-aging cosmetic reduced wrinkles in clinical trial
Scientists testing a cosmetic anti-aging product sold on the high street have shown it can clinically reduce wrinkles and improve the appearance of skin damaged by everyday exposure to sunlight.
Guidelines for medical home demonstrations released by major physician groups
Four physician membership organizations today released
NIAID and Chinese officials sign agreement to foster TB research in China's Henan province
Officials from NIAID and from China's Henan Provincial Bureau of Health will meet in Zhengzhou, China, on April 29 to foster research on tuberculosis, including clinical research on new treatments for multidrug-resistant tuberculosis.
Analysis finds strong match between molecular, fossil data in evolutionary studies
Paleontologists have completed a rigorous study that has culminated in a new approach to reconciling the conflict between fossil and molecular data in evolutionary studies.
Athletes with asthma need more help from their team trainers
Very few athletic trainers associated with National Collegiate Athletic Association programs said that they were following best practice standards for managing asthma among their athletes, according to a new study.
Gene alterations associated with response to anthracycline therapy for breast cancer
Alterations in the topoisomerase II alpha gene were associated with better patient outcomes following anthracycline-based therapy compared with nonanthracycline-based regimens, according to a study in the April 28 online issue of the Journal of the National Cancer Institute.
Cardiac patients trial home-based rehabilitation
Patients who have been treated in hospital for cardiac health problems, such as a heart attack, are being given a powerful new option to help set them on the path to good health.
Native Americans descended from a single ancestral group, DNA study confirms
After comparing DNA samples from people in dozens of modern-day Native American and Eurasian groups, an international team of scientists has provided robust evidence to support the theory that all Native Americans and Western Beringians trace a large portion of their ancestry to a single founding population, and that this population may have been isolated from other Asian groups prior to expanding into the Americas.
Protein effects of hormone replacement therapy uncovered
An in-depth proteomic analysis of the sera of 50 participants from the Women's Health Initiative hormone replacement therapy trial provides some explanations for the trial's clinical results.
Autism genes discovered; help shape connections among brain cells
A research team has connected more of the intricate pieces of the autism puzzle, with two studies that identify genes with important contributions to the disorder.
MBL director and CEO and cell biology pioneer Gary Borisy elected to National Academy of Sciences
Cell biologist Dr. Gary G. Borisy, director and CEO of the Marine Biological Laboratory has been elected to the National Academy of Sciences, an honorific society of distinguished scholars engaged in scientific and engineering research.
New insight into addictive behavior offers treatment hope
Addictive behavior is determined by conscious, rapid thought processes, not necessarily by the content of visual stimuli as previously thought according to research funded by the Biotechnology and Biological Sciences Research Council.
Swine flu: Responsibility of individual cannot be ignored
The responsibility of the individual cannot be ignored in this possible swine flu epidemic, concludes an editorial published online first by the Lancet.
Penn Medicine, CHOP researchers demonstrate first common genetic risk factors for autism
Researchers have made an important step forward in understanding the complex genetic structure of autism spectrum disorders.
Regional blocks superior to general anesthesia for cesarean section
General anesthesia is associated with an increased risk of infant intubation and low Apgar scores, relative to regional anesthesia.
Symposia selected for Entomological Society of America meeting
The Entomological Society of America will feature 70 symposia on insect science at their Annual Meeting in Indianapolis, December 13-16, 2009.
Are we cherry picking participants for studies of antidepressants?
Findings from clinical studies of common antidepressants are not applicable to most patients with depression, according to a University of Pittsburgh Graduate School of Public Health study.
When industrious ants go too far
Nature is full of mutually beneficial arrangements between organisms -- like the relationship between flowering plants and their bee pollinators.
Prostate cancer immunotherapy significantly prolongs survival in men with advanced prostate cancer
Sipuleucel-T (Provenge), an experimental immunotherapy improved survival in men with metastatic disease, according to new results to be presented April 28 at the American Urological Association Annual Scientific Meeting in Chicago.
Unifying the animate and the inanimate designs of nature
Living beings and inanimate phenomena may have more in common than previously thought.
PER:PER protein pair required for circadian clock function
Scientists from Queen Mary, University of London have discovered a new protein complex operating in fruit fly circadian clocks, which may also help to regulate our own biological clocks.
Spectacular new record set for the universe's most distant stellar explosion
A gamma-ray burst, more distant than the farthest known galaxy, has been discovered by a team of researchers at the Niels Bohr Institute at the University of Copenhagen.
Study suggests new target for treatment of depression
A brain protein involved in fear behavior and anxiety may represent a new target for depression therapies, according to research from the University of Iowa and the Iowa City Veterans Affairs Medical Center.
JNCI April 28 tip sheet
In addition to studies highlighted in two press releases, this JNCI issue includes articles on clinical trial designs to test the impact of exercise and weight control on breast cancer risk, the clusterin gene as a tumor suppressor in neuroblastoma, and a molecular test to predict outcome in mesothelioma.
We owe it all to comets
Tel Aviv University finds that comets contain key ingredients for life on Earth.
Statins alter prostate cancer patients' PSA levels
Beyond lowering cholesterol, statin medications have been found to have numerous other health benefits, including lowering a healthy man's risk of developing advanced prostate cancer, as well as lowering his prostate-specific antigen levels.
Potential new drug target for depression identified
An acid-sensitive protein in the brain may represent a new target for the treatment of depression, according to animal research in the April 29 issue of the Journal of Neuroscience.
DOE funds research center to understand carbon storage underground
The Department of Energy's Office of Science will invest $777 million in 46 new Energy Frontier Research Centers over the next five years as part of President Barack Obama's plans to reinvigorate American science.
Astronomers find farthest known object
Astronomers at the Harvard-Smithsonian Center for Astrophysics, along with colleagues elsewhere in the United States and the United Kingdom, have discovered the most distant object in the universe -- a spectacular stellar explosion known as a gamma-ray burst located about 13 billion light years away.
Satellite imagery shows fragile Wilkins Ice Shelf destabilized
Satellite images show that icebergs have begun to calve from the northern front of the Wilkins Ice Shelf, indicating that the huge shelf has become unstable.
Open source mobile technology software reinventing health care in developing countries
Joel Selanikio merged his expertise in computer science, medicine and public health with his business partner's tech background to create a sustainable mobile software tool to aid in disease surveillance and collection of public health data in developing nations.
NOSCAR to hold 4th international conference on 'NOTES' July 9-11 in Boston
The Natural Orifice Surgery Consortium for Assessment and Research, a joint effort of the American Society for Gastrointestinal Endoscopy and the Society of American Gastrointestinal and Endoscopic Surgeons, will hold its 4th International Conference on NOTES July 9-11, 2009, in Boston.
Regional partnership to develop algal biofuels gets backing of San Diego leaders
San Diego Mayor Jerry Sanders today joined UC San Diego Chancellor Marye Anne Fox, local scientists and industry leaders to announce their support for a regional partnership designed to develop innovative ways to turn algae into biofuels.
May-June 2009 GSA Bulletin media highlights
GSA Bulletin covers various aspects of volcanism, including North Sister volcano, central Oregon Cascades; Kilauea in Hawaii; areas around the Yellowstone hotspot; the hot-spot-derived Easter Island; and fossil evidence of hot magma backarcs in Iran.
Springer launches
Springer Science+Business Media has launched StemCellGateway, a one-stop destination resource designed to strengthen the stem cell community and foster the exchange of information among researchers in this field.
Keynoter to highlight need for continual change in sustainable education reform
Any educational reform, no matter how effective it may seem today, will have to change in order to last, according to University of Chicago education researcher Jeanne Century.
OHSU Knight Cancer Institute to study new radiation technology for head, neck cancer
In a new Phase II clinical trial, researchers in the OHSU Knight Cancer Institute will evaluate whether the state-of-the-art image-guidance system Calypso is as effective in delivering highly precise radiation therapy to head and neck cancer patients as it has been those with prostate cancer.
DOE makes largest Danforth Campus research award in history
Washington University and the Donald Danforth Plant Science Center have received two awards totaling $35 million from the US Department of Energy to do research on novel energy initiatives.
Topical cream studied as way to treat skin cancer without the knife
Saint Louis University researchers find that a topical drug shows promise in treating some types of skin cancer, potentially reducing the area needing surgery, managing the cancer and minimizing its recurrence.
ASHG hosts fourth annual DNA Day essay contest, supports genetics education efforts
The American Society of Human Genetics announced the winners of the fourth annual National DNA Day Essay Contest, which serves to educate students and teachers about important concepts in genetic science.
Risk of autism tied to genes that influence brain cell connections
In three studies, including the most comprehensive study of autism genetics to date, investigators funded in part by the National Institutes of Health have identified common and rare genetic factors that affect the risk of autism spectrum disorders.
ADA releases position paper on obesity, reproduction and pregnancy outcomes
Diet and nutrition counseling for virtually all overweight and obese women of childbearing age can reduce health risks associated with excess weight for mothers and children alike, according to a newly released position paper from the American Dietetic Association and the American Society of Nutrition.
WA discovery a key to blood cell development
A West Australian research team has made the world-first discovery a 'pied piper' molecule within blood cells, called Liar, that leads other molecules into the nucleus of the cell, and could offer a key in treating prostate, breast and colon cancers as well as leukemia.
Purdue study finds dairy better for bones than calcium carbonate
A Purdue University study shows dairy has an advantage over calcium carbonate in promoting bone growth and strength.
Matrix protein key to fighting viruses
A new approach could help scientists to intercept one of the viruses that cause respiratory disease and a third of common colds, before it begins spreading, according to new research.
FluChip technology licensed to combat deadly flu virus
InDevR, a small biotech company in Boulder, Colo., announced today that they have licensed the FluChip technology from the University of Colorado.
Alzheimer's, asthma, cancer, malaria and TB focus of new Singapore grants
Over 50 research grants totaling $24 million in US dollars have been awarded to Singapore universities, research institutes and hospitals to fund studies related to asthma and other immune system disorders, infectious diseases, aging and cancer.
UC Riverside professor receives top scientific honor
UC Riverside's Alexander Raikhel, a professor of entomology, has been elected a member of the National Academy of Sciences for his excellence in original scientific research.

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