Preliminary research indicates that use of nitroglycerin ointment among postmenopausal women for 2 years was associated with a modest increase in bone mineral density and decrease in bone resorption (loss), according to a study in the February 23 issue of JAMA.
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Mammography screening in women with a personal history of breast cancer detects second breast cancers at an early stage, but has lower accuracy, compared to screening in women without prior breast cancer, according to a study in the February 23 issue of JAMA.
More women are surviving longer after having early-stage breast cancer, but they are at risk of developing breast cancer again: a recurrence or a new cancer, in either breast. Annual screening (a.k.a. "surveillance") mammography has long been standard for these women, but only scant evidence on screening outcomes supported this practice. In the February 23, 2011 Journal of the American Medical Association, the most comprehensive relevant study to date shows yearly mammograms do detect second breast cancers early.
Wildlife conservation strategies may better protect mammals from human activities by treating animals' ranges as multiple interacting small populations, a study finds. Charles Yackulic and colleagues analyzed historical range maps for 47 mammal species to find patterns that might help conservationists assess threats to animal populations from human encroachment. According to the authors, an animal's habitable range contains different ecological niches that can provide valuable clues about the species resiliency.
TORONTO, Ont., Feb, 23, 2011—Women who take commonly prescribed drugs for osteoporosis known as bisphosphonates for five years or more may be at higher risk of certain kinds of fractures of their thigh bone, a new study has found.
However, the drugs do prevent hip fractures. And, since the overall risk of thigh bone fractures caused by the drugs is low, women at high risk for hip and other osteoporosis-related fractures should not stop taking bisphosphonates, according to researchers at St. Michael's Hospital and the Institute for Clinical Evaluative Sciences.
CAMBRIDGE, Mass.- MIT engineers have designed a new type of nanoparticle that could safely and effectively deliver vaccines for diseases such as HIV and malaria.
"Am I just a face in the crowd? Is that all I'll ever be? ... Do you think I stand out?"—The Kinks, "A Face in the Crowd"
It may seem paradoxical, but being part of a crowd is what makes you unique, according to UCLA life scientists.
Ignoring the stresses of an unemployed spouse's job search does not bode well for the employed spouse's job productivity or home life, says a University of Colorado Boulder professor.
Associate Professor Maw-Der Foo of CU-Boulder's Leeds School of Business studies employee workplace issues, including those related to interpersonal relationships.
February 22, 2011 — (BRONX, NY) — In an advance that could improve battlefield and trauma care, scientists at Albert Einstein College of Medicine of Yeshiva University have used tiny particles called nanoparticles to improve survival after life-threatening blood loss. Nanoparticles containing nitric oxide (NO) were infused into the bloodstream of hamsters, where they helped maintain blood circulation and protect vital organs.
ANN ARBOR, Mich. – A study led by the University of Michigan Cardiovascular Center shows being a woman may not increase your risk of dying from treatment for a severe heart attack.
U-M researchers and colleagues in the Michigan Cardiovascular Consortium found women who received treatment such as an angioplasty had higher unadjusted in-hospital heart attack deaths.
If asked whether we'd steal, most of us would say no. Would we try to save a drowning person? That depends—perhaps on our fear of big waves. Much research has explored the ways we make moral decisions. But in the clinch, when the opportunity arises to do good or bad, how well do our predictions match up with the actions we actually take?
BUFFALO, N.Y. -- New nanomaterials research from the University at Buffalo could lead to new solutions for an age-old public health problem: how to separate bacteria from drinking water.
To the naked eye, both water molecules and germs are invisible -- objects so tiny they are measured by the nanometer, a unit of length about 100,000 times thinner than the width of a human hair.
But at the microscopic level, the two actually differ greatly in size. A single water molecule is less than a nanometer wide, while some of the most diminutive bacteria are a couple hundred.
MADISON, WI FEBRUARY 22, 2011 – As the organic food trend continues to grow; more farmers are converting from conventional agriculture to organic production. One of the fastest growing markets in the U.S. is the production of organic milk. The growth of this industry has prompted many farmers to transition their land to organic feed grain production. With transition on the rise, it is necessary for these farmers to have effective and economical organic management practices.
The ferocious Tyrannosaurus rex has been depicted as the top dog of the Cretaceous, ruthlessly stalking herds of duck-billed dinosaurs and claiming the role of apex predator, much as the lion reigns supreme in the African veld.
But a new census of all dinosaur skeletons unearthed over a large area of eastern Montana shows that Tyrannosaurus was too numerous to have subsisted solely on the dinosaurs it tracked and killed with its scythe-like teeth.
Patients with chronic obstructive pulmonary disease (COPD) are at greater risk of shingles compared with the general population, according to a study published in CMAJ (Canadian Medical Association Journal) (pre-embargo link only) http://www.cmaj.ca/embargo/cmaj101137.pdf. The risk is greatest for patients taking oral steroids to treat COPD.
Shingles, or herpes zoster, is a reactivation of the chicken pox virus resulting in a painful rash with lesions.