Women with DCIS who develop invasive breast cancer in the same breast have higher mortality rates, study finds. Radiation treatment after lumpectomy reduces risk of ipsilateral invasive breast cancer, while treatment with tamoxifen also offers protection.
A fundamental change in the genome of leaf beetles has emerged, resulting in the loss of salicylaldehyde-producing enzyme salicyl alcohol oxidase in birch feeders. This adaptation allows birch beetles to save resources by not producing the enzyme, which is only needed for willow feeders.
A recent study published in Clinical Infectious Diseases found that HIV-infected patients have a higher risk of bone fractures compared to the general US population. The study analyzed data from over 5,800 HIV-infected patients and observed annual fracture rates 1.98-3.69 times greater than the general population.
A new study published in Clinical Gastroenterology and Hepatology found that chronic pancreatitis cases are not exclusively caused by alcohol consumption, with over 50% of patients having no identifiable cause. Genetic factors and environmental interactions may play a role in disease development.
Dr. Hoang's research aims to understand and explain the underlying mechanisms of tumor progression in osteosarcoma, a type of aggressive bone cancer that often relapses with low survival rates. The award recognizes his work advancing knowledge on how to develop therapies for patients with untreatable sarcomas.
A University of Alberta researcher suggests that excessive prenatal testosterone exposure may contribute to giftedness, leading to increased brain connections and distinct personality traits. Further research is needed to determine the exact processes involved in gifted brain development.
A study published in The Journal of Immunology reveals that the elderly are more susceptible to pneumonia and bacterial infections due to a decline in immune system cells. Researchers have found that macrophages and B cells, which fight bacteria, appear effective but are fewer in number, making them less effective. Developing targeted ...
A Concordia researcher has developed a highly effective computer program to age photographic images of people's faces, improving the accuracy of age-estimation for missing-child investigations and national security. The technique combines active appearance models and support vector regression to predict future facial appearance.
A recent study found that daily iron supplements do not significantly increase hemoglobin levels in healthy pregnant women, but can help alleviate iron-poor blood conditions in Africa. Researchers followed over 1,000 pregnant women and discovered that all participants ended with similar iron levels after three months.
A new blood test measures destruction of lung air sacs and can detect early emphysema in smokers, potentially preventing disease progression. The test is a low-cost screening tool that could help the 20% of American adults who smoke or are exposed to secondhand smoke understand their risk of developing this progressive lung disease.
Researchers studied earthquakes, volcanoes and land use in North America. They found evidence of localized active extension in Italy's central Apennines and a unique rare earth element signature in hydrothermal systems.
Researchers found that mouse neurons mature in their sense of smell after birth, enabling them to distinguish between their mother's scent, siblings', and home fragrance. This maturation process may provide an evolutionary advantage for altricial species by facilitating learning to identify family members.
The TUM team graded over 6,000 timber specimens from ten European countries to determine the influence of origin on strength. They found that some parameters influencing timber properties have yet to be established, but propose classifying timber into three regions based on similar properties.
InDevR received a $3 million Phase II NIH grant to develop an integrated molecular diagnostic platform for influenza screening. The technology aims to provide accurate, rapid, and cost-effective identification of influenza viruses.
Researchers found that rhodopsin, a retina pigment, plays a role in detecting temperature sensations in fruit flies. The discovery reveals a new function of rhodopsin beyond its well-known role as a light sensor.
Researchers have developed a new measurement technology to investigate the structure of composite and biological materials, providing microscopic insights into polymeric networks. The rheometer and confocal microscope system enabled visualization of fluorescently labeled actin networks and filming of polymer filaments' movement in 3-D ...
An Australian study found that 78% of school-aged children slept through a smoke alarm sounding for 30 seconds. The study highlights the importance of child evacuation in domestic fires, as only half of waking children recognized the alarm's sound. Younger children (5-10 years old) are significantly more at risk.
A study in Spain and Greece found that over 30% of hake products sold in these countries were mislabelled, with African fish often labelled as European or American. The error benefits middlemen, not African fishermen.
A recent survey by NORC at the University of Chicago found that Americans prioritize education as the top spending category, followed by healthcare. The study, which analyzed data from 2010, also showed a decline in support for increased spending in some categories, despite the economic downturn.
Researchers discovered that human mammary epithelial cells possess lineage-specific intrinsic abilities to self-organize into domains of lineage specificity, maintaining healthy bi-layered branching organization. The study provides insights into the coordination of stem cell differentiation and tissue architecture maintenance.
Researchers identified four novel biomarkers that can discriminate between healthy controls, asthmatics, and individuals with COPD. These anti-inflammatory proteins may help diagnose respiratory diseases earlier, allowing for more effective treatment.
A groundbreaking study by University of California, Riverside researchers found that personality characteristics and social relations from childhood can predict one's risk of dying decades later. The Longevity Project followed over 1,500 bright children for 20 years, revealing that prudence and persistence are key to a long life.
A new method called Antisolvent Swing Regeneration reduces the amount of heat needed during processing, potentially saving at least 10% of energy. This process uses a recyclable binding organic liquid to remove hydrogen sulfide from natural gas.
Virus researchers discovered that VPS4A plays a key role in the release of HIV particles from infected cells. By labeling the enzyme with Green Fluorescent Protein, they tracked its interaction with nascent virions, revealing complex formation and transient activation before budding.
A randomized trial suggests that preoperative colonic stenting offers no clear benefit over emergency surgery for patients with colorectal cancer and acute malignant left-sided colonic obstruction. The study found a high rate of tumor perforations, which may worsen clinical outcomes.
Scientists found that a protein called Igf2 in the cerebrospinal fluid signals brain cells to multiply during embryonic development. This discovery could lead to new treatments for neurological diseases and cancer by targeting specific areas of the brain, eliminating the need for localized drug delivery.
A study by Columbia Business School professor Stephan Meier found that incentives can decrease public goods contribution and increase free-riding behavior in group environments with informal norm enforcement. The researchers discovered that incentives changed the norm of contribution, making it acceptable to exploit common resources.
Researchers found elevated levels of endothelial microparticles in smokers' blood, even before symptoms appeared. These findings suggest a potential new diagnostic method for early emphysema detection.
Researchers found that eliminating caspase-2 prolongs the life of neurons stressed by pesticide chemicals, a potential therapeutic target for neurodegenerative disorders like Parkinson's and Alzheimer's diseases. Neurons lacking caspase-2 increase autophagy to survive.