Brightsurf Science News & Current Events

April 17, 2012
Georgetown researcher on climate change: Reduce contribution, care for victims, advocate
Physicians and nurses have a role if not

Nanocrystal-coated fibers might reduce wasted energy
Researchers are developing a technique that uses nanotechnology to harvest energy from hot pipes or engine components to potentially recover energy wasted in factories, power plants and cars.

Model for breast cancer rehab featured in supplement to ACS journal, Cancer
The Prospective Surveillance Model, an innovative new model of breast cancer rehabilitation, is featured in a special supplement to the American Cancer Society's journal, Cancer, released on April 6, 2012.

Clinical trial: Intestinal gel reduces 'off' time in advanced Parkinson's disease
A levodopa-carbidopa intestinal gel (LCIG) works better than standard oral levodopa-carbidopa in reducing

'Diesel Reloaded': A vehicle for rethinking mobility rolls into Hannover Messe
Press and public can see the latest progress in a unique electromobility research project during the international trade fair MobiliTec (April 23-27, Hannover Messe).

Investment in proton beam therapy for cancer may be premature
Both the US and UK are pouring money into building proton accelerators to treat cancer.

Genetically modified corn affects its symbiotic relationship with non-target soil organisms
Although Bt corn is one of the most commonly grown GM crops in the United States, little is known about its effects on the long-term health of soils.

Long-term exposure to air pollution increases risk of hospitalization for lung, heart disease
Older adults may be at increased risk of being hospitalized for lung and heart disease, stroke, and diabetes following long-term exposure to fine-particle air pollution, according to a new study by researchers at Harvard School of Public Health.

NUS scientists discover a 'switch' in plants to create flowers
National University of Singapore scientists discovered what triggers plants to flower when they identified a protein essential for flowering under normal light conditions; a finding that could potentially increase crop yields significantly in changing environments.

Brain cancer vaccine proves effective
A new brain cancer vaccine tailored to individual patients by using material from their own tumors has proven effective in a multicenter phase 2 clinical trial at extending their lives by several months or longer.

From restoring carousel horses to winning $300,000 innovation prize
A University of California, Riverside Bourns College of Engineering professor has won first place in the Vodafone Americas Foundation Wireless Innovation Project and will receive $300,000 to further his work on a wireless bug sensor that has the potential to lessen the damage insects cause on food crops worldwide.

Neural stem cell transplants for spinal cord injury maximized by combined, complimentary therapies
Transplanted neural stem cells demonstrated their therapeutic potential to reverse complex pathological processes following spinal cord injury and maximized the benefits of neural stem cell transplantation for spinal cord repair in rat models.

Adding drug to standard chemotherapy provides no survival benefit for older lung cancer patients
Adding the drug bevacizumab (Avastin) to the standard chemotherapy regimen for non-small cell lung cancer -- an approach approved by the FDA in 2006 -- did not lead to significantly increase survival rates for patients over the age of 65 enrolled in Medicare, a new study by Dana-Farber Cancer Institute researchers has found.

Study: Transport of trauma patients by helicopter costly but effective
Seriously injured trauma patients transported to hospitals by helicopter are 16 percent more likely to survive than similarly injured patients brought in by ground ambulance, new Johns Hopkins research shows.

Registration open for the Ecological Society of America's 2012 Annual Meeting in Portland, Ore.
Registration is now open for the Ecological Society of America's (ESA) 97th Annual Meeting on Aug.

Long-term exposure to silica dust increases risk of death in industrial workers
Industrial workers who have been chronically exposed to silica dust are at substantially higher risk of death from all causes than workers who have not been exposed.

Lack of sleep is linked to obesity, new evidence shows
Can lack of sleep make you fat? A new paper which reviews the evidence from sleep restriction studies reveals that inadequate sleep is linked to obesity.

Improved loblolly pines better for the environment, study finds
Improved loblolly pines not only grow faster and produce more wood but also scrub more carbon dioxide from the atmosphere.

Historically black colleges and universities may be more supportive of students
A new study that analyzed differences in practices between faculty at historically black colleges and universities and predominantly white institutions found that faculty at HBCUs were more likely to engage students in certain

Saliva test could dramatically increase detection of oral cancer
A Michigan State University surgeon is teaming up with a Lansing-area dental benefits firm on a clinical trial to create a simple, cost-effective saliva test to detect oral cancer, a breakthrough that would drastically improve screening and result in fewer people dying of the world's sixth most common cancer.

Kessler Foundation's Krch addresses strategies for including minorities in research studies
Denise Krch, Ph.D., research scientist at Kessler Foundation, is presenting on April 19 during the online meeting of the Interagency Committee on Disability Research, Interagency Subcommittee on Medical Rehabilitation and Interagency Subcommittee on Health Disparities.

Changing brains for the better; article documents benefits of multiple practices
Practices like physical exercise, certain forms of psychological counseling and meditation can all change brains for the better, and these changes can be measured with the tools of modern neuroscience, according to a review article now online at Nature Neuroscience.

NASA satellite movie shows Great Plains tornado outbreak from space
Satellite data gives forecasters a leg up on severe weather.

SDSC announces 'Center of Excellence' for predictive analytics
The San Diego Supercomputer Center (SDSC) at the University of California, San Diego is launching a new

New AIDS math could halve need for CD4 tests after ART in developing countries
Wistar researchers introduce a new

Weeding out invasive species with classical biological control
Dr. Gadi V. P. Reddy, chemical ecologist and entomologist at the University of Guam has just received a $33,000 grant from USDA-APHIS to control the insidious weed Mikania micrantha.

Nursing for autism across the lifespan highlighted in Drexel professor's new book
The growing number of children and adults on the autism spectrum represent a growing need for quality health care that is sensitive to the issues they face.

Study: Helicopter transport improves trauma patient survival compared to ground transport
A new study, led by a University of Maryland researcher, concludes a helicopter flight to a top-level trauma center boosts the chance of survival over ground transport.

In Cambodia, any preschool found better than none
A study comparing preschools in rural Cambodia finds that some types of preschool are better than others, but any type is better than none at all.

Some stars capture rogue planets
New research suggests that billions of stars in our galaxy have captured rogue planets that once roamed interstellar space.

Good intentions bring mixed results for Haiti's disabled people
A study of the rehabilitation response to help people who became disabled due to the 2010 Haiti earthquake finds mixed intentions and failure to observe international standards.

3 Rutgers scientists elected to American Academy of Arts and Sciences
Three Rutgers scientists have been elected to membership in the American Academy of Arts and Sciences, one of the nation's most prestigious honorary societies and a leading center for independent policy research.

Licorice root found to contain anti-diabetic substance
Researchers have discovered a promising anti-diabetic substance in the amorfrutin class of natural substances.

Biostatistics research could improve resource use in AIDS treatment in poor nations
A major problem that has slowed progress toward universal access to life-saving antiretroviral therapy to treat AIDS in developing nations has been limited availability of laboratories and medical staff to conduct blood tests of immune system CD-4 levels that indicate when to start ART.

Raising the pulse to beat teenage blues
A unique study to test the effectiveness of personally tailored exercise programs on young people with depression has been launched by researchers at the University of Nottingham.

Bioethicists urge less regulatory burden for low-risk comparative effectiveness research
In an opinion article published in this week's theme edition of the Journal of the American Medical Association focusing on comparative effectiveness research, a team of Johns Hopkins University bioethicists argues forcefully for streamlining federal restrictions on at least some low-risk clinical comparative effectiveness research, instead of easing them -- as is now proposed -- solely for low-risk social and behavior research involving surveys, interviews and focus groups.

College part of new NIHR School for Public Health Research
The Peninsula College of Medicine and Dentistry is one of just eight health research institutions in England to be chosen as a collaborator in the new National Institute for Health Research School for Public Health Research.

Hot new manufacturing tool: A temperature-controlled microbe
The authors of a study appearing in mBio, the online open-access journal of the American Society for Microbiology, on April 17 have found a way to control a heat-loving microbe with a temperature switch: it makes a product at low temperatures but not at high temperatures.

Women face a higher risk of care home admission due to their partner's age
New research published today in the journal Age and Aging has investigated why women are 40 percent more likely to be admitted in to a care home than men.

Survey finds errors in Wikipedia articles
Sixty percent of Wikipedia articles about companies contain factual errors.

Preschoolers' reading skills benefit from 1 modest change by teachers
A small change in how teachers and parents read aloud to preschoolers may provide a big boost to their reading skills later on, a new study found.

8-millionth patent awarded by US Patent and Trademark Office
As patent number eight million is issued by the USPTO for a retinal prosthetic device that bypasses damaged photoreceptors in the retina by sending electrical stimulus to the retina's remaining cells, Ram R.

Same-ethnicity mentors boost students' commitment to STEM careers
A short-term longitudinal study of high school students finds that, for minority students who prefer having a mentor of the same ethnicity, contact with such a mentor can increase their sense of belonging and identity as a science, technology, engineering, or math (STEM) student.

Good vibrations in fight against cancer
Researchers at Case Western Reserve University have built medicine-toting nanochains that penetrate tumors and explode a payload of chemotherapy drug into the core of cancer.

Niceness is at least partly in the genes
What makes some people give blood and bake casseroles for their neighbors, while others mutter about taxes from behind closed blinds?

Can behavior be controlled by genes? The case of honeybee work assignments
In an article published in the advance online edition of Genes, Brain and Behavior on April 6, 2012, a biologist at Washington University in St.

Magnetic fields can send particles to infinity
Researchers from the Complutense University of Madrid have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping.

Tai Chi wheelchair brings mobility, self-esteem, better health to practitioners
An innovative 13-postures Tai Chi designed for wheelchair users has brought the traditional Chinese martial and healing arts to people with ambulatory impairment.

New genetically engineered mice aid understanding of incurable neuromuscular disease
A team of scientists from the University of Missouri created a genetically modified mouse that mimics key features of Charcot-Marie-Tooth disease, an inherited neuromuscular disease affecting approximately 150,000 people in the United States.

Radar brings engineering expertise, research to OU
Expertise in weather radar research is synonymous with the University of Oklahoma, home of the National Weather Center, and in a strategic move to expand radar multi-mission capabilities, the university is hiring engineering expertise and building lab capabilities.

Only clinically qualified medical physicists should be allowed to work in hospitals to avoid dangerous, sometimes fatal, errors
In a comment linked to the Lancet Physics Series, Dr.

Dartmouth research shows brain scans can predict weight gain and sexual activity
In breakthrough research, Dartmouth scientists have established that fMRI brain scans may be able to predict future weight gain and sexual activity.

Diagnostic yield of colonoscopy for melena after nondiagnostic upper endoscopy is lower than previously reported
A new study from researchers in Oregon reports that the diagnostic yield of colonoscopy to investigate melena after a nondiagnostic upper endoscopy is lower, 4.8 percent, than previously reported.

New radiation therapy reduces treatment of gynecologic cancers from 5 weeks to 3 days
About 71,500 women in the United States are diagnosed with a gynecologic cancer every year, according to the Centers for Disease Control.

EARTH: US Navy navigates a sea change in the Arctic
The idea that the Arctic is changing is not breaking news.

Better methods and estimates of infectious disease burden
Better estimates of infectious disease burden are needed for effective planning and prioritizing of limited public health resources.

New book traces Montreal's urban evolution
Clarence Epstein's new book,

Nanotube electrodes improve solar cells
Forests of carbon nanotubes are an efficient alternative for platinum electrodes in dye-sensitized solar cells, according to new research by collaborators at Rice University and Tsinghua University.

Callahan honored for improving older adults' health in their doctors' offices
Regenstrief Institute investigator Christopher Callahan, M.D., Cornelius and Yvonne Pettinga Professor in Aging Research at Indiana University School of Medicine and director of the IU Center for Aging Research, will receive the 2012 National Award for Career Achievement and Contribution to Clinical and Translational Science to be presented at Translational Science 2012 in Washington, D.C., April 18-20.

Using math to feed the world
In the race to breed better crops to feed the increasing world population, scientists at The University of Nottingham are using maths to find out how a vital plant hormone affects growth.

ORNL process improves catalytic rate of enzymes by 3,000 percent
Light of specific wavelengths can be used to boost an enzyme's function by as much as 30 fold, potentially establishing a path to less expensive biofuels, detergents and a host of other products.

A scarcity of college men leads women to choose briefcase over baby
American women today are more likely to earn college degrees than men with women receiving 57 percent of all bachelor's and 60 percent of all master's degrees.

Pre-operative statins can help patients who undergo heart surgery
Pre-operative statin therapy can reduce the chance of post-operative atrial fibrillation and shortens the stay on the intensive care unit and in the hospital in patients who undergo cardiac surgery, according to a new systematic review by Cochrane researchers.

Depressed moms' behavior may play role in infants' sleep problems
A new study finds that moms with higher levels of symptoms of depression might act in ways that disturb their infants' sleep.

New research suggests PIP implant failures significantly higher than previously thought
New research published in the Journal of Plastic, Reconstructive and Aesthetic Surgery suggests that the failure rate of silicone breast implants manufactured by Poly Implant Prosthese (PIP) could be as high as 33.8 percent.

Scientists discover 'switch' in plants to create flowers
Flowering is the most crucial act that plants undergo, as the fruits of such labor include crops on which the world depends, and seeds from which the next generation grows.

Long-term preservation: Pensoft Publishers partner with the CLOCKSS Archive
Long-term preservation is one of the core issues that digital media face.

Early focus on print promotes later literacy achievement
A new study shows that low-income preschoolers who are at risk for developing reading problems can improve their reading skills if they're read to by teachers who identify the letter, track the shape of the letters, and discuss the words formed by those letters.

Institute of Physics: Medical schools should consider restoring the requirement for applicants to hold 'A' level or equivalent qualifications in physics
In a second comment linked to the Lancet Physics Series, professor Sir Peter Knight, President of the Institute of Physics, London, UK, says:

Study amplifies understanding of hearing in baleen whales
For decades, scientists have known that dolphins and other toothed whales have specialized fats associated with their jaws, which efficiently convey sound waves from the ocean to their ears.

Early introduction of biologic therapy improves Crohn's disease outcomes
A large-scale study of medical claims data at the University of Chicago Medicine shows that introducing sophisticated biologic therapies early in the course of treatment for Crohn's disease improves response to medication and reduces the need for surgery.

Cocaine and heroin users who received testing, counseling less likely to have unprotected sex
Voluntary testing and counseling for HIV or sexually transmitted infections among cocaine and heroin users who were treated in the emergency department, accompanied by referral to drug treatment, was associated with reduction in unprotected sex acts and fewer sex acts while high according to researchers from Boston University School of Medicine and Boston Medical Center.

First blood test to diagnose major depression in teens
A Northwestern Medicine scientist has developed the first blood test to diagnose major depression in teens, a breakthrough approach that allows an objective diagnosis by measuring a specific set of markers found in a patient's blood.

Can sound science guide dispersant use during subsea oil spills?
On the second anniversary of the Deepwater Horizon Oil Spill, a pair of researchers at the Virginia Institute of Marine Science are using a one-year, $350,000 contract from the US Department of the Interior to test whether sound waves can be used to determine the size of oil droplets in the subsea -- knowledge that could help guide the use of chemical dispersants during the cleanup of future spills.

Investments in physics technology and education are key to the future success of medicine
The Lancet is publishing a series of five papers on physics and medicine, plus two comments, to coincide with the anniversary of Albert Einstein's death, April 18, 1955.

Racial profiling, killings of arrestees by local police increase
Deadly police shootings, racial profiling and discriminatory law enforcement are once again in the forefront of national debate.

Excessive weight gain during pregnancy a predictor for above-average birth weight
Researchers from the Children's Hospital of Eastern Ontario (CHEO) Research Institute, from the University of Ottawa (faculties of Medicine and Health Sciences) and from the Ottawa Hospital Research Institute set out to discover if overweight or obese women are in fact more likely to give birth to above average weight babies, as reported in the Journal of Maternal-Fetal and Neonatal Medicine.

Children's National identifies trigger for alternate reproduction of HIV-related cancer virus
A research team led by Children's National Medical Center has identified a trigger that causes latent Kaposi's sarcoma-associated herpesvirus (KSHV) to rapidly replicate itself.

Kroenke honored for outstanding contributions in clinical research training
Regenstrief Institute investigator Kurt Kroenke, M.D., will receive the 2012 Distinguished Educator Award, to be presented at Translational Science 2012 in Washington, D.C., April 18-20.

A toxic menu
A marine worm feeds on carbon monoxide and hydrogen sulphide with the help of symbiotic bacteria.

Cary Institute Hydrofracking Forum
On Saturday, May 5 from 9 a.m. to noon join the Cary Institute of Ecosystem Studies in Millbrook, N.Y., for a special forum exploring hydrofracking.

Hubble's panoramic view of a turbulent star-making region
Several million stars are vying for attention in this NASA/ESA Hubble Space Telescope image of a raucous stellar breeding ground in 30 Doradus, located in the heart of the Tarantula nebula.

Orangutan nest building shows high degree of sophistication
Orangutans may be smarter than previously thought if a new study into the sophisticated way they build nests is any indication.

Employee assistance programs lack a comprehensive approach to addressing intimate partner violence
Employee assistance programs (EAPs), a standard benefit offered to employees at most large companies, are failing to identify individuals who abuse or have the potential to abuse their intimate partner, despite well-known risk factors for intimate partner violence perpetration.

Moderate alcohol consumption before and after heart attack associated with lower mortality
The Health Professionals Follow-up Study is a prospective cohort study of 51,529 US male health professionals.

U of G professor helps launch first Canadian Positive Psychology Association
Helping improve workplace well-being is one purpose of the Canadian Positive Psychology Association (CPPA), a new organization co-founded by Gruman to share knowledge and foster collaboration in positive psychology.

Scripps Research Institute Professor Gerald F. Joyce elected to American Academy of Arts & Sciences
Scripps Research Institute Professor Gerald F. Joyce, MD, Ph.D., has been elected to the American Academy of Arts & Sciences.

Aptitude test may be fairer way of selecting medical school candidates
Medical schools that use the UK Clinical Aptitude Test as part of their admissions process reduce the relative disadvantage faced by certain socioeconomic groups, finds a study published on bmj.com today.

Study of half siblings provides genetic clues to autism
New research in half siblings adds to evidence that even though autism is far more common in males, mothers and fathers appear to be transmitting genetic risk equally.

Opioids associated with highest risk of death
People with an opioid addiction had the highest risk of death when compared with rates for alcohol and other drugs, according to a new study by the Centre for Addiction and Mental Health.

Problems in cancer care are not uncommon
Cancer care is increasingly complex, and as many as one in five cancer patients may experience

Caffeine use may offer relief for millions of dry eye sufferers
Researchers at the University of Tokyo's School of Medicine have shown for the first time that caffeine intake can significantly increase the eye's ability to produce tears, a finding that could improve treatment of dry eye syndrome.

Sandia National Laboratories' work on neutron generation: Going from tubes to chips
It was a figurative whack on the head that started Sandia National Laboratories distinguished technical staff member Juan Elizondo-Decanini thinking outside the box -- which in his case was a cylinder.

New findings reported by Microbicide Trials Network researchers at HIV prevention meeting
Women who use hormonal contraception are at no greater risk of HIV, according to a retrospective review of data from an HIV prevention trial conducted more than three years ago, the latest set of conflicting results on this perplexing issue.

Egg-laying beginning of the end for dinosaurs
They laid eggs, occupied many ecological niches with only one species and competed with one another.

Despite belief WIC improves infant health, new study finds no positive or negative impact
Scientific literature suggests WIC, a US government nutritional program, improves birth outcomes of children.

University of Cincinnati researchers win $3.7M grant from US Department of Defense
Researchers from the University of Cincinnati have received a four-year, $3.7 million grant from the US Department of Defense for investigations into circadian rhythms that could lead to enhanced understanding of disease treatments, trauma care and human combat performance.

Need for greater patient and clinician involvement in comparative clinical effectiveness research
More involvement by patients, clinicians and others in the health care community in developing comparative clinical effectiveness research studies will make such studies far more useful in clinical decision-making, according to the Patient-Centered Outcomes Research Institute, in an article published in the April 18 issue of JAMA, a theme issue on comparative effectiveness research.

Study examines adverse effects among different radiation therapies for prostate cancer
In an analysis of three different types of radiation therapy used to treat localized prostate cancer, compared with conformal radiation therapy, intensity-modulated radiation therapy (IMRT) was associated with fewer diagnoses of gastrointestinal adverse effects, hip fractures, and receipt of additional cancer treatments but more erectile dysfunction, while proton therapy was associated with more gastrointestinal adverse effects than IMRT, according to a study in the April 18 issue of JAMA, a theme issue on comparative effectiveness research.

Minimum alcohol pricing shows 'significant impacts,' says expert
Government plans to impose a minimum price of 40p per unit of alcohol will have

Hypertension study proves treatment with RAAS inhibitors saves lives
RAAS inhibitors showed a 5 percent reduction in all-cause mortality and a 7 percent reduction in cardiovascular mortality when compared with control antihypertensive therapy.

Kidney cancer patients do better when whole kidney is not removed, U-M study shows
Kidney cancer patients who had only their tumor removed had better survival than patients who had their entire kidney removed, according to a new study from researchers at the University of Michigan Comprehensive Cancer Center.

Knee injuries in women linked to motion, nervous system differences
Women are more prone to knee injuries than men, and the findings of a new study suggest one cause may be that males and females differ in the way they transmit the nerve impulses that control muscle force.

Balancing trastuzumab's survival benefits and heart risks for women with breast cancer
Adding trastuzumab (trade name Herceptin) to the treatment offered to women who have HER2-positive breast cancer, significantly increases the chance of life being prolonged, and reduces the chance of tumors reappearing once therapy stops.

Study examines drug regimen for the treatment of non-small cell lung cancer among older patients
Analysis of a drug regimen approved by the F.D.A. in 2006 for the treatment of non-small cell lung cancer (bevacizumab added to the standard chemotherapy regimen carboplatin and paclitaxel) finds Medicare insured patients age 65 years and older who received this regimen did not have improved survival compared to patients who received the standard treatment of carboplatin and paclitaxel alone.

Feelings of immaturity accompany alcohol misuse into adulthood; discovery could improve treatments
Tipping back one too many cocktails during an individual's early 20s doesn't correlate to a personal sense of immaturity; however if this habit doesn't stop as they reach age 30, young adults can feel psychologically underdeveloped, according to a University of Missouri study.

Parkinson's protein causes disease spread in animal model
Penn researchers have shown that brain tissue from a Parkinson's disease mouse model , as well as synthetically produced disease protein fibrils, injected into young, symptom-free PD mice led to spreading of PD pathology.

States face challenges to improve writing standards
Far too many K-12 students have inadequate writing skills, and the current efforts to improve instruction in the United States may be more challenging than anticipated, research from Michigan State University shows.

Hutchinson Center president elected to American Academy of Art and Sciences
Larry Corey, M.D., president and director of Fred Hutchinson Cancer Research Center, has been elected to membership in the American Academy of Arts and Sciences, one of the nation's oldest and most prestigious honorary societies and independent policy-research centers.

Study hints at why gums suffer with age
A study reveals that gum deterioration, which often occurs with increasing age, is associated with a drop in the level of a protein called Del-1.

Ultra-sensitive electrical biosensor unlocks potential for instant diagnostic devices
Researchers at UC Santa Barbara have proposed a Tunnel-FET-based biosensor 10,000 times more sensitive than conventional FET-based sensors.

Helicopter transport of seriously injured adults to trauma centers associated with improved survival
In a study that included data on more than 200,000 adults with serious injuries admitted to level I or II trauma centers, transport by helicopter compared with ground emergency medical services was associated with improved survival to hospital discharge, according to a study in the April 18 issue of JAMA, a theme issue on comparative effectiveness research.

Hubble's panoramic view of a turbulent star-making region
Several million young stars are vying for attention in a new NASA Hubble Space Telescope image of a raucous stellar breeding ground in 30 Doradus, a star-forming complex located in the heart of the Tarantula nebula.

Positive feelings may help protect cardiovascular health
Over the last few decades numerous studies have shown negative states, such as depression, anger, anxiety, and hostility, to be detrimental to cardiovascular health.

Sunlight plus lime juice makes drinking water safer
Adding lime juice to water that is treated with a solar disinfection method removed detectable levels of harmful bacteria such as Escherichia coli significantly faster than solar disinfection alone.

Intensity Modulated Radiation Therapy optimal for localized prostate cancer
A treatment for localized prostate cancer known as Intensity Modulated Radiation Therapy (IMRT) is better than conventional conformal radiation therapy (CRT) for reducing certain side effects and preventing cancer recurrence, according to a study published in the April 18, 2012 issue of the Journal of the American Medical Association.

Prioritizing lab testing for patients on antiretroviral treatment in resource-constrained settings
In this week's PLoS Medicine, Luis Montaner from the Wistar Institute, Philadelphia, USA and colleagues retrospectively apply a potential capacity-saving CD4 count model to a cohort of HIV-infected patients on antiretroviral therapy.

Testosterone supplements may help heart failure patients
Testosterone supplements helped stable heart failure patients with moderate to severe disease breathe better and exercise more, according to a review of four previous studies.

Stanford study: Social factors better indicate early death risk than skin color, geography
In a novel study of health disparities in the United States, Stanford University School of Medicine researchers have identified 22 socioeconomic and environmental variables that together are better indicators of early death than are race or geography.

Depression may lead mothers to wake babies
Depressed mothers are more likely to needlessly wake up their infants at night than mothers who are not depressed, according to Penn State researchers.

Hospital readmission rates misleading
The odds that someone undergoing spinal surgery at a particular hospital will have to be readmitted to the same hospital within 30 days is an important measure of the quality of care patients receive.

A common cholesterol medication may impact kidney health
Older patients taking a common cholesterol medication should be cautious of the impact on their kidney health.

TNT Express wins 2012 INFORMS Edelman Award, Super Bowl of analytics, operations research
TNT Express, which used operations research to modernize operations and strengthen its carbon footprint, won the 2012 Franz Edelman Award for Achievement in Operations Research and the Management Sciences at a banquet sponsored by the Institute for Operations Research and the Management Sciences in Huntington Beach last night.

Patients often stop taking heart drugs during Medicare coverage gaps
Patients in the Medicare Part D prescription drug coverage gap without supplemental insurance were more likely than others to discontinue their heart disease medication.

Babies flick 'anti-risk switch' in women but not men
Unlike women, men don't curb certain risk-taking behaviors when a baby is present, a new psychology study at the University of Warwick suggests.

Scientists tailor cell surface targeting system to hit organelle ZIP codes
cientists who developed a technology for identifying and targeting unique protein receptor ZIP codes on the cellular surface have found a way to penetrate the outer membrane and deliver engineered particles -- called iPhage -- to organelles inside the cell.

Study reveals major funding shortfall and high death rates for emergency laparotomy
Anesthetists have identified a major shortfall in funding for emergency laparotomies in England.

From ideas to action: World experts meet on better mobilizing knowledge in the age of information
How to better mobilize knowledge and maximize its usefulness is the focus of 60 experts from 20 countries and spanning a score of disciplines convened by the Canadian-based United Nations University -- Institute for Water, Environment and Health to a meeting in Hamilton, Canada April 24-28.

Katrina changed everything
All over the country, millions of Americans still live behind dams or levees, and if these were to fail and unleash catastrophic flooding, as some did in New Orleans in 2005, property, and life, might once again pay the price.

Opium use linked to almost double the risk of death from any cause
Long-term opium use, even in relatively low doses, is associated with almost double the risk of death from many causes, particularly circulatory diseases, respiratory conditions and cancer, concludes a study published on bmj.com today.

The sea as a rubbish tip
Biologists have prepared guidelines for a more precise investigation into marine pollution from microplastic particles.

Global, common approach to pharmaceutical supply chain integrity the focus of workshop
The increasing globalization of the drug supply presents a host of public health challenges: theft and diversion of medicines, growth of illegal Internet pharmacies and insertion of adulterated medicines or ingredients into the supply chain.
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