Culture

Integrated 3-D imaging facilitates human face transplantation

CHICAGO – By combining conventional medical imaging with some of the same 3-D modeling techniques used in Hollywood blockbusters, researchers are offering new hope to victims of serious facial injuries. Results of a new study on human face transplantation, led by Darren M. Smith, M.D., plastic surgery resident at the University of Pittsburgh Medical Center (UPMC), were presented today at the annual meeting of the Radiological Society of North America (RSNA).

Researchers use CT to recreate Stradivarius violin

CHICAGO – Using computed tomography (CT) imaging and advanced manufacturing techniques, a team of experts has created a reproduction of a 1704 Stradivarius violin. Three-dimensional images of the valuable violin and details on how the replica was made were presented today at the annual meeting of the Radiological Society of North America (RSNA).

Predicting future threats for global amphibian biodiversity

Amphibian populations are declining worldwide, and their declines far exceed those of other animal groups: more than 30% of all species are listed as threatened according to the Red List of the International Union for the Conservation of Nature (IUCN). Multiple factors threaten global amphibian diversity but the spatial distribution of these threats and their interactions are poorly known. A new study published in Nature with Dr. Christian Hof as lead author indicates that, worryingly, areas of greatest amphibian species richness are the areas subject to the greatest threat.

Hypoglossal nerve stimulation increases airflow during sleep in obstructive sleep apnea

Hypoglossal nerve stimulation (HGNS) produced marked dose-related increases in airflow in obstructive sleep apnea (OSA) patients without arousing them from sleep, according to a new study from the Johns Hopkins Sleep Disorders Center. The study suggests the potential therapeutic efficacy of HGNS across a broad range of sleep apnea severity and offers an alternative to continuous positive airway pressure (CPAP), the current mainstay of treatment for moderate to severe OSA. The effectiveness of CPAP is often limited by poor patient adherence.

Vitamin D-fortified yoghurt improves cholesterol levels and heart disease biomarkers for diabetics

People with diabetes are known to have an increased risk of heart disease. New research published in BioMed Central's open access journal BMC Medicine shows that regular consumption of a vitamin D-fortified yoghurt drink improves cholesterol levels and biomarkers of endothelial dysfunction, a precursor of heart disease, in diabetics.

Doctors could learn from Shakespeare's understanding of emotion-body connection?

Shakespeare was a master at portraying profound emotional upset in the physical symptoms of his characters, and many modern day doctors would do well to study the Bard to better understand the mind-body connection, concludes an analysis of his works, published in Medical Humanities.

Kenneth Heaton, a medical doctor and extensively published author on William Shakespeare's oeuvre, systematically analysed 42 of the author's major works and 46 of those of his contemporaries, looking for evidence of psychosomatic symptoms.

Firefighters more likely to be injured exercising than putting out fires

Firefighters are more likely to be injured while exercising than while putting out fires, suggests research published online in Injury Prevention.

But carrying patients is the task most likely to require time off work, the study shows.

Combined firefighting and emergency medical services have one of the highest workplace injury and death rates in the US.

The authors looked at data for injuries sustained while at work for 21 fire stations serving the metropolitan area of Tucson, Arizona between 2004 and 2009.

Overweight individuals more susceptible to risk factors for further weight gain

Some risk factors for obesity become stronger the more overweight a person is, according to a study published Nov. 23 in the online journal PLoS ONE.

Paul Williams of Lawrence Berkeley National Laboratory in Berkeley, California found that certain risk factors – lower education level, parental obesity, and high meat/low fruit diets – produced a greater risk for excess body weight for subjects with a higher body mass index (BMI) than for those with lower BMI.

Study finds online marketplaces overplay safeguards and ignore social aspects of transactions

As Cyber Monday approaches, a new study of e-commerce giants eBay and Amazon challenges a common assumption that trust and risk are always important considerations for buyers in online marketplaces, arguing instead that auction sites may have "over-invested in institutional structures" to reduce buyers' economic risk while ignoring social elements of their transactions.

Short waits, long consults keep most patients very happy with their physicians

ANN ARBOR, Mich.—Patients overall in the United States are very satisfied with their physicians and with treatment they receive in outpatient settings, according to new information which challenges common public perceptions about outpatient medical treatment.

The scoop on the dangers of snow shoveling

Urban legend warns shoveling snow causes heart attacks, and the legend seems all too accurate, especially for male wintery excavators with a family history of premature cardiovascular disease. However, until recently this warning was based on anecdotal reports.

Two of the most important cardiology associations in the US include snow -shoveling on their websites as a high risk physical activity, but all the citation references indicate that this warning was based one or two incidents.

Is sustainability science really a science?

LOS ALAMOS, New Mexico -- The idea that one can create a field of science out of thin air, just because of societal and policy need, is a bold concept. But for the emerging field of sustainability science, sorting among theoretical and applied scientific disciplines, making sense of potentially divergent theory, practice and policy, the gamble has paid off.

Paracetamol: Repeated ingestion of slightly too much can be fatal -- recognize and treat quickly

Repeatedly taking slightly too much paracetamol over time can cause a dangerous overdose that is difficult to spot, but puts the person at danger of dying. Patients may not come to hospital reporting the overdose, but because they feel unwell. This clinical situation needs to be recognized and treated rapidly because these patients are at even greater danger than people who take single overdoses.

Nanowrinkles, nanofolds yield strange hidden channels

PROVIDENCE, R.I. -- Wrinkles and folds are ubiquitous. They occur in furrowed brows, planetary topology, the surface of the human brain, even the bottom of a gecko's foot. In many cases, they are nature's ingenious way of packing more surface area into a limited space. Scientists, mimicking nature, have long sought to manipulate surfaces to create wrinkles and folds to make smaller, more flexible electronic devices, fluid-carrying nanochannels or even printable cell phones and computers.

Study assesses association between urinary salt excretion and risk of cardiovascular events or death

For persons with cardiovascular disease or diabetes, urinary sodium excretion (a surrogate for salt intake) at higher levels or at lower levels compared to mid-range values was associated with an increased risk of cardiovascular events (for higher levels) or cardiovascular death and hospitalization for congestive heart failure (for lower levels), according to a study in the November 23/30 issue of JAMA. Also, higher estimated urinary potassium excretion was associated with a reduced risk of stroke.