Researchers recently completed one of the most extensive investigations to date of prenatal hormones in first-time expectant couples. Women showed large prenatal increases in salivary testosterone, cortisol, estradiol, and progesterone, while men showed significant prenatal declines in testosterone and estradiol, but no detectable changes in cortisol or progesterone.
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A review of more than a decade's worth of research on osteonecrosis of the jaw--when the bone in the jaw is exposed and begins to starve from a lack of blood--points to an increased risk for patients taking certain drugs for osteoporosis, anticancer drugs or glucocorticoids, those undergoing dental surgery, and people with poor oral hygiene, chronic inflammation, diabetes, or ill-fitting dentures.
A pregnant woman in Africa who has contracted Ebola is likely to suffer with a spontaneous abortion, pregnancy-related hemorrhage, or the death of her newborn. Although the risk of caring for a pregnant woman with Ebola in the United States may be rare, the Association of Women's Health, Obstetric and Neonatal Nurses (AWHONN) has published a practice brief in its Journal of Obstetric, Gynecologic, & Neonatal Nursing to guide nursing care for pregnant women and newborns.
COLUMBUS, Ohio - A new study led by researchers at The Ohio State University Comprehensive Cancer Center - Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC - James) describes a novel marker that might help doctors choose the least toxic, most effective treatment for many older patients with acute myeloid leukemia (AML).
Washington, D.C.-- Recent advances in our understanding of the quantities, movements, forms and origin of carbon in Earth are summarized in a just-published report. The research represents face-paced progress on the depths of the biosphere, Earth, what erupts from volcanoes and leaks from sea floors, what descends back into Earth's great depths, and the nature of carbon-bearing materials within planets.
Is an experienced policymaker a more rational and a more self-interested bargainer than the average person? That is what nearly all prior research has assumed. But a new study from the University of California, San Diego shows just the opposite.
Appearing in the Proceedings of the National Academy of Sciences, the study by David Victor of UC San Diego and colleagues suggests that top decision-makers care even more about fairness than the general population, and the more experience they have, the more they care about striking a fair bargain.
(SACRAMENTO, Calif.) -- Scientists have long known the p53 protein suppresses tumors. However, a recent animal study by UC Davis researchers has uncovered a complicated relationship between p53 and another protein, Rbm38, highlighting how the body calibrates protein levels. Too much Rbm38 reduces p53 levels, increasing the risk of cancer. Too little Rbm38 allows p53 overexpression, causing premature aging. The study was published in the journal PNAS on Dec. 15.
Whole genome sequencing of modern and ancient horses unveils the genes that have been selected by humans in the process of domestication through the latest 5.500 years, but also reveals the cost of this domestication. A new study led by the Centre for GeoGenetics at the University of Copenhagen, in collaboration with scientists from 11 international universities, reports that a significant part of the genetic variation in modern domesticated horses could be attributed to interbreeding with the descendants of a now extinct population of wild horses.
An exciting new special issue of the Canadian Journal of Earth Sciences shines the spotlight on the Danek Bonebed in Edmonton, Alberta and increases our knowledge of Edmonton's urban dinosaurs, especially the iconic hadrosaurid Edmontosaurus.
LANSING, Mich. December 15, 2014 - Cyclists who are preparing for race day may have a new sports drink to give them an edge in recovery: tart cherry juice. A new study published in Applied Physiology, Nutrition, and Metabolism found that Montmorency tart cherry juice helped accelerate recovery, maintain muscle function and reduce certain markers of exercise-induced inflammation among a group of cyclists participating in a simulated road race.
To the casual observer, the colonies of social insects like bees and ants appear to be harmonious societies where individuals work together for the common good. But appearances can be deceiving.
Just in time for Christmas, Simon Fraser University computing science professor Richard Zhang reveals how to print a 3D Christmas tree efficiently and with zero material waste, using the world's first algorithm for automatically decomposing a 3D object into what are called pyramidal parts.
A pyramidal part has a flat base with the remainder of the shape forming upwards over the base with no overhangs, much like a pyramid. A pyramidal shape is optimal for 3D printing because it incurs no material waste and saves print time.
New York (15 December 2014)--A study published today is the first detailed assessment of whether the 8-year Iraq War had an effect on childbearing. The study found that before the war, from 1997 to 2003, adolescent fertility in Iraq was stable at just below 70 births per 1,000 girls aged 15-19. However, soon after the beginning of the war, adolescent fertility rose by more than 30 percent, reaching over 95 births per 1,000 girls in 2010.
A breast cancer specialist and clinical researcher at Women & Infants Hospital of Rhode Island presented research yesterday at the 2014 San Antonio Breast Cancer Symposium showing that adding either the chemotherapy drug carboplatin or the blood vessel-targeting drug bevacizumab to the standard treatment of chemotherapy before surgery helped women who have the basal-like subtype of triple-negative breast cancer.
Baltimore MD-- We would not expect a baby to join a team or participate in social situations that require sophisticated communication. Yet, most developmental biologists have assumed that young cells, only recently born from stem cells and known as "progenitors," are already competent at inter-communication with other cells.