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Updated: 11 hours 21 min ago

Infectious prion protein discovered in urine of patients with variant Creutzfeldt-Jakob disease

Thu, 07/08/2014 - 2:36pm
The misfolded and infectious prion protein that is a marker for variant Creutzfeldt-Jakob disease – linked to the consumption of infected cattle meat – has been detected in the urine of patients with the disease. Variant Creutzfeldt-Jakob disease in humans and bovine spongiform encephalopathy in animals – also known as Mad Cow disease – are fatal neurodegenerative disorders. There are currently no noninvasive tools available to diagnose the disease and there are no treatments.
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Excavation of ancient well yields insight into Etruscan, Roman and medieval times

Thu, 07/08/2014 - 2:36pm
During a four-year excavation of an Etruscan well at the ancient Italian settlement of Cetamura del Chianti, a team led by a archaeologist and art historian unearthed artifacts spanning more than 15 centuries of Etruscan, Roman and medieval civilization in Tuscany.
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Attending a more selective college doesn't mean a better chance of graduating

Thu, 07/08/2014 - 2:36pm
It is commonly argued that students should attend the most academically selective college possible, since, among other reasons, highly selective institutions graduate students at higher rates. However, is it the institutions themselves that succeed in getting students through to degree completion, or is degree completion merely a result of the quality of the students entering the institutions?
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Dermatologist Cautions Parents About Misinformation on Safety of Children's Skin Care Products

Thu, 07/08/2014 - 2:36pm
Before the advent of Internet search engines, parents obtained much of their medical advice from their child’s doctor. Today, with a plethora of information available at their fingertips, parents have more sources to consult than ever before. Yet dermatologists warn parents that not everything they read on blogs and websites about the safety of skin care products is true.
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Reducing stress may help lead to clearer skin

Thu, 07/08/2014 - 2:36pm
Anyone who’s had a pimple form right before an important event may wonder if stress caused the break out. While commonly linked anecdotally, proving the relationship between stress and inflammatory skin conditions, such as acne, psoriasis and rosacea, is another matter. An expert discusses the latest research on the impact stress has on inflammatory skin conditions and his thoughts on how this research could change treatment options.
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New pharmaceutical product to prevent heroin deaths

Thu, 07/08/2014 - 2:36pm
A method for needle-free, intranasal administration of the anti-opioid drug naloxone has been developed. The product is in its final round of clinical trials and has retrieved Fast Track status from the FDA.
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Galapagos hawks hand down lice like family heirlooms

Wed, 06/08/2014 - 9:38pm
Studying Galápagos hawks and their lice, biologists provide some of the first field evidence for co-divergence between parasites and hosts as a major driver of biodiversity. As the birds diversify into distinct populations on each island, their parasites diversify with them. The findings help explain the rapid rate of parasite evolution.
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History of fire and drought shapes the ecology of California, past and future

Wed, 06/08/2014 - 9:38pm
Ecologists have researched the history of wildfire across California, and have compared and contrasted historical versus contemporary and forested versus non-forested patterns of wildfire incidence.
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Community religious beliefs influence whether wives work outside home, study finds

Wed, 06/08/2014 - 8:17pm
Married women who live in communities in which a higher proportion of the population belongs to conservative religious traditions -- such as evangelical or Mormon -- are more likely to choose not to work outside the home, even if the women are not members of those faith groups, according to a study.
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Link between vitamin D, dementia risk confirmed

Wed, 06/08/2014 - 8:16pm
Vitamin D deficiency is associated with a substantially increased risk of dementia and Alzheimer's disease in older people, according to the most robust study of its kind ever conducted. An international team found that study participants who were severely vitamin D deficient were more than twice as likely to develop dementia and Alzheimer's disease.
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Studying muscle function to treat heart failure

Wed, 06/08/2014 - 8:16pm
Researchers are hoping to uncover the molecular mechanisms of skeletal muscle fatigue through new studies. In doing so, they will advance understanding of muscle function and lead to new drug therapies for people with fatigue, including 5.7 million Americans living with chronic heart failure.
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Behavior-focused therapies help children with autism, study shows

Wed, 06/08/2014 - 8:15pm
Updated findings regarding the benefits of behavior-focused therapies for children with autism spectrum disorder (ASD) have been reported by researchers. The review updates a prior systematic review of interventions for children (up to age 12) with a focus on recent studies of behavioral interventions.
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Fipronil, imidacloprid reduce honeybee mitochondrial activity

Wed, 06/08/2014 - 7:40pm
Scientists are urgently trying to determine the causes of colony collapse disorder and the alarming population declines of honeybees. The effects of fipronil and imidacloprid on honeybees has been addressed by a new study. While damage at sublethal levels may not be evident, low level exposure inhibits the ability to forage and return to the hive, which could result in declining bee populations.
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Tornado strength, frequency, linked to climate change

Wed, 06/08/2014 - 7:40pm
New research shows that climate change may be playing a key role in the strength and frequency of tornadoes hitting the United States.
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Designing embryo transfer policies: What's at issue?

Wed, 06/08/2014 - 7:40pm
A commentary has been published that focuses on neonatal outcomes when designing embryo transfer policies. "While preterm birth is an important factor to consider in subsequent preterm birth risk, one wonders whether a more accurate prediction could be generated using a more complex model," the author writes.
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Brain tumors fly under body's radar like stealth jets, new research suggests

Wed, 06/08/2014 - 7:39pm
Brain tumors fly under the radar of the body’s defense forces by coating their cells with extra amounts of a specific protein, new research shows. Like a stealth fighter jet, the coating means the cells evade detection by the early-warning immune system that should detect and kill them.
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Gene-editing technique offers new way to model cancer

Wed, 06/08/2014 - 6:22pm
A new gene-editing technique allows scientists to more rapidly study the role of mutations in tumor development. "The sequencing of human tumors has revealed hundreds of oncogenes and tumor suppressor genes in different combinations. The flexibility of this technology, as delivery gets better in the future, will give you a way to pretty rapidly test those combinations," explained an author of the paper.
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Computer program assesses quality of Wikipedia entries

Wed, 06/08/2014 - 6:22pm
Wikipedia the free, online collaborative encyclopedia is an important source of information. However, while the team of volunteer editors endeavors to maintain high standards, there are occasionally problems with the veracity of content, deliberate vandalism and incomplete entries. Computer scientists have now devised a software algorithm that can automatically check a particular entry and rank it according to quality.
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Another potential ALS treatment avenue identfied by researchers

Wed, 06/08/2014 - 6:22pm
A series of studies that begun eight years ago has lead to a report that may be a major step forward in the quest to develop real treatments for amyotrophic lateral sclerosis, ALS, or Lou Gehrig's disease.
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Young loggerhead turtles not going with the flow

Wed, 06/08/2014 - 6:22pm
Juvenile loggerhead turtles swim into oncoming ocean currents, instead of passively drifting with them. After loggerhead turtle hatchlings leave nesting beaches, they live in the ocean for 7-12 years before migrating to coastal habitats.
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