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Science News Archive May 2011 - Page 8


Page 8 of 28

CDC assesses potential human exposure to prion diseases

The CDC study found that a significant proportion of respondents had traveled to countries with reported prion diseases, increasing the risk of exposure. Hunting and venison consumption were also associated with increased risk of prion disease exposure, particularly in areas with chronic wasting disease.

SourceElsevier Health Sciences·JournalJournal of the American Dietetic Association·DateMay 23, 2011

Weight gain between first and second pregnancies increases woman's gestational diabetes risk

Women who gained 2-3 BMI units between the first and second pregnancy were more likely to develop GDM in the second pregnancy. Conversely, women who lost over 6 pounds between pregnancies reduced their risk of developing GDM by approximately 50%. The association was strongest in women who were overweight or obese in their first pregnancy.

SourceKaiser Permanente·JournalObstetrics and Gynecology·DateMay 23, 2011

Common Jupiters?

A recent study using data collected between 2006 and 2007 found evidence for 10 free-floating planets roughly the mass of Jupiter, suggesting they are common. The discovery supports the 'ejection' scenario where planets are kicked out from their solar systems due to close gravitational encounters with other planets or stars.

Cultured men are happier and healthier

Regular cultural activities like visiting museums and theatres improve mental health in adults, with receptive cultural activities showing greatest benefits for men. Engaging in creative or active cultural activities also has positive effects on perceived health and well-being.

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·DateMay 23, 2011

Discovery of canine hepatitis C virus opens up new doors for research on deadly human pathogen

Researchers have identified a novel hepatitis C-like virus in dogs, providing new insights into the origins of the human disease. The discovery offers renewed hope for developing a model system to study HCV's mechanisms and may lead to the development of drugs and vaccines.

SourceColumbia University's Mailman School of Public Health·JournalProceedings of the National Academy of Sciences·DateMay 23, 2011

Mummies tell history of a 'modern' plague

An analysis of ancient Nubian-era mummies found that human alteration of the environment contributed to the spread of schistosomiasis, a water-borne parasitic disease infecting an estimated 200 million people today. The study suggests that ancient individuals were capable of altering their environment in ways that impacted their health.

SourceEmory Health Sciences·JournalAmerican Journal of Physical Anthropology·DateMay 23, 2011

Shave biopsy is a safe and acceptable method for initial evaluation of melanoma

A study published in the Journal of the American College of Surgeons found shave biopsies to be a safe and accurate method for initial evaluation of melanoma. The study analyzed 600 consecutive patients who underwent shave biopsies, revealing that 97% of the results were accurate in determining T-stage and depth data.

SourceWeber Shandwick Worldwide·JournalJournal of the American College of Surgeons·DateMay 23, 2011

Low-risk patients screened for heart disease tend to receive more preventive care and testing

A study published in Archives of Internal Medicine found that low-risk patients who underwent coronary computed tomographic angiography (CCTA) screening were more likely to receive medications and undergo additional testing. However, their cardiac event rates did not significantly differ from those who did not undergo screening.

SourceJAMA Network·JournalArchives of Internal Medicine·DateMay 23, 2011

What doesn't kill the brain makes it stronger

A Johns Hopkins team has identified a newly discovered protein called Iduna that protects the brain against stroke and neurologic disorders. The protein works by interrupting a cascade of molecular events that result in cell death, and its presence increases three- to four-fold in preconditioned mouse brain tissue.

SourceJohns Hopkins Medicine·JournalNature Medicine·DateMay 23, 2011

To bluff, or not to bluff? That is the question

A University of Miami economist applied modern-day game theory techniques to examine famous military bluffs and find that bluffing was the optimal strategy in each situation. The study used signaling games to model the legends of Li Guang and Zhuge Liang, finding that uncertainty was key to avoiding confrontation.

SourceUniversity of Miami·JournalJournal of Peace Research·DateMay 23, 2011

A study opens the possibility of developing a preventive vaccine against HIV/AIDS

Researchers from IDIBAPS have conducted a study on HIV-infected patients with undetectable viral load, finding that they can induce a broad and strong humoral immune response. The percentage of treated and untreated patients generating broad-spectrum neutralizing antibodies was very similar, suggesting a potential preventive vaccine ba...