Mass strandings of whales have puzzled people since Aristotle. Modern-day strandings can be investigated and their causes, often human-related, identified. Events that happened millions of years ago, however, are far harder to analyze—frequently leaving their cause a mystery. A team of Smithsonian and Chilean scientists examined a large fossil site of ancient marine mammal skeletons in the Atacama Desert of Northern Chile—the first definitive example of repeated mass strandings of marine mammals in the fossil record.
Culture
The Lancet reported today the results of a study in 9 European countries documenting that hospital nurse staffing and the proportion of nurses with bachelor’s education are associated with significantly fewer deaths after common surgery. A team of researchers led by the University of Pennsylvania School of Nursing in the U.S.
One of the first, largest, and longest-running multipayer trials of patient-centered medical home medical practices in the United States was associated with limited improvements in quality and was not associated with reductions in use of hospital, emergency department, or ambulatory care services or total costs of care over 3 years, according to a study in the February 26 issue of JAMA.
In an analysis that included more than two million patients who underwent a percutaneous coronary intervention (PCI; procedures such as balloon angioplasty or stent placement used to open narrowed coronary arteries), there was considerable variation in red blood cell transfusion practices among hospitals across the U.S., and receiving a transfusion was associated with an increased risk of in-hospital heart attack, stroke or death, according to a study in the February 26 issue of JAMA.
Washington, DC—Patients were twice as likely to have a diabetic foot ulcer heal within eight weeks when they were treated with a tissue repair drug versus a placebo, according to new research accepted for publication in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).
National support for marijuana ("cannabis") legalization is increasing in the United States (US). Recreational use was recently legalized in the states of Colorado and Washington; other states across the country are expected to follow suit. To date, an additional 15 states have decriminalized marijuana use, and 19 states and the District of Columbia now allow medical marijuana to be prescribed.
Phase 2 trial results published in the March issue of Hepatology, a journal of the American Association for the Study of Liver Diseases, suggests the potential for Glycerol Phenylbutyrate (GPB) to reduce hepatic encephalopathy episodes in patients with cirrhosis, with a safety profile similar to placebo.
EAST LANSING, Mich. — Solitary confinement does not make supermax prison inmates more likely to re-offend once they're released, finds a study on the controversial penitentiaries led by a Michigan State University criminologist.
The study – one of the first to examine recidivism rates among supermax inmates – refute critics' claims that serving extended time in isolation leads to more crime. Super-maximum security units, known as supermax units or prisons within prisons, are designed to house problematic inmates by keeping them isolated for as long as 23 hours a day.
A study led by Manchester scientists has shown promising results for a new treatment approach in follicular lymphoma.
Follicular lymphoma is a type of non-Hodgkin's lymphoma– a blood cancer - that usually develops slowly. The majority of patients are diagnosed when their disease is at an advanced stage.
The tax status of a hospice (for-profit vs. nonprofit) affects community benefits, the population served and community outreach.
The number of for-profit hospices has increased over the past two decades with about 51 percent of hospices being for-profit in 2011 compared with about 5 percent in 1990. But little is known about how for-profit and nonprofit hospices differ in activities beyond service delivery.
The risk of heart attack or stroke is increased in the 30 days after a partner's death.
Bereavement is recognized as a risk factor for death and is associated with cardiovascular events.
The authors compared the rate of myocardial infarction (MI, heart attack) or stroke in older patients (n=30,447, 60 to 89 years of age) whose partner died to that of individuals (n=83,588) whose partners were still alive during the same period.
An extensive review of scientific literature indicates that depression should be added to the list of risk factors associated with heart disease. Others include obesity, diabetes, high blood pressure and smoking.
A 12-person panel of experts that included Robert M. Carney, PhD, and Kenneth E. Freedland, PhD, both professors of psychiatry at Washington University School of Medicine in St. Louis, made the recommendation to the American Heart Association (AHA).
Their findings are published online as a scientific statement in the journal Circulation.
PHILADELPHIA— Half of melanoma patients with the BRAF mutation have a positive response to treatment with BRAF inhibitors, but nearly all of those patients develop resistance to the drugs and experience disease progression.
Philadelphia, Pa. (February 21, 2014) – The millions of Americans living with more than one chronic disease are at high risk of poor health outcomes, and account for a disproportionate share of health care costs. A special March supplement to Medical Care presents updates from the Agency for Healthcare Research and Quality's (AHRQ) Multiple Chronic Conditions (MCC) Research Network, formed to address knowledge gaps and research challenges in meeting the complex health care needs of this growing population.
There's more to dieting than just sheer willpower and self-control. The presence of friends, late night cravings or the temptation of alcohol can often simply be too strong to resist. Research led by Heather McKee of the University of Birmingham in the UK monitored the social and environmental factors that make people, who are following weight management programs, cheat. The study¹ is published in the Springer journal Annals of Behavioral Medicine.²