A study published in the Journal of Neuroscience reveals that social stress can increase inflammation among brain cells, leading to anxiety-like behaviors. The researchers found that immune cells migrated to the brain in response to social stress, triggering an inflammatory response and a specific activation pattern of neurons.
Stem cells extracted from human fat may revolutionize soft tissue reconstruction, cartilage and bone development, and cardiovascular disease treatment. The researchers have developed a technique to decellularize adipose tissue, creating a scaffold for stem cell growth.
MIT scientists have designed a new type of nanoparticle that can target nearly any type of tumor by utilizing the acidic environment shared by most cancers. The particles are designed to break down in the slightly more acidic environment near a tumor, revealing another layer that can penetrate individual cells.
A new study published in the Journal of the American College of Nutrition found that pistachio snackers had better success with supporting their body mass index (BMI) goals compared to those who snacked on pretzels. Pistachios also helped support heart health due to their high levels of healthy unsaturated fat.
Phase change materials exhibit surprisingly low thermal conductivity in both crystalline and amorphous states. The researchers found that resonance bonding between atoms in the crystalline state impairs heat conduction. This property makes phase change materials suitable for developing fast, non-volatile, and energy-saving main memories.
Researchers from Ben-Gurion University of the Negev have launched a new online Crisis Communication Scorecard to help public authorities improve their communication before, during, and after emergencies or disasters. The free online tool assesses stakeholder expectations, media relations, and cooperation between crisis responders.
Researchers found that current prevention and screening standards are worth the cost and may need expansion to include more of the population. Screening followed by treatment with a low-cost, high-resistance nucleoside or nucleotide is cost-effective at $29,000 per quality-adjusted life year gained.
The annual rate of coronary artery bypass graft surgeries in the US decreased substantially between 2001 and 2008, with a 15% decrease in CABG surgery rate. In contrast, percutaneous coronary interventions (PCI) rates remained relatively stable during this period.
A study published in the Journal of the National Cancer Institute found that breast cancers discovered between screening mammograms tend to be more aggressive and have a poorer prognosis. The research compared data from women with interval cancers (detected between mammograms) to those detected during routine screening.
Researchers found that a year of healthy life could be saved for around the price of filling up an average family car in the UK. Administering tranexamic acid within three hours of injury saves estimated 755,000 life years per 1,000 bleeding trauma patients in the UK, Tanzania, and India.
A systematic review and meta-analysis found that structured exercise training, including aerobic and resistance exercises, significantly reduces hemoglobin A1c levels in patients with type 2 diabetes. Longer weekly exercise duration is also linked to greater HbA1c decreases.
Researchers found that doubling a plant's chromosome set can grant it an immediate survival advantage in challenging environments. The experiment showed that hexaploid yarrow outperformed its tetraploid counterpart by five-fold, with the difference attributed solely to the increased chromosome number.
A team of researchers deployed an observatory system to study microbial life in the ocean crust, revealing a large reservoir of seawater that supports a dynamic ecosystem. The study provides insights into hydrogeology, geochemistry, and microbiology, with potential applications for understanding earthquakes and carbon storage.
Biophysicists at Penn have developed a new technique to study how proteins respond to physical stress, particularly in red blood cells. The technique, which measures the degree of exposed cysteine in proteins, reveals that stressed cells are more fluorescent under microscopy.
Physicians suggest that airlines adopt standardized recording systems for in-flight medical emergencies and mandatory reporting to the National Transportation Safety Board. They also recommend enhanced training for flight attendants and standardized communication with ground-to-air medical support.
Researchers from Boston University's Center for Regenerative Medicine have demonstrated that induced pluripotent stem cells (iPSCs) can differentiate into definitive endoderm cells in vitro, with similar functional potential to embryonic stem cells. This finding is significant given the controversy surrounding iPSCs and their potential...
A Northwestern University study found that many people are unaware of the active ingredients in over-the-counter pain relievers, such as acetaminophen. The researchers suggest developing a universal icon for acetaminophen to raise awareness and prevent misuse.
Researchers have found that mouse induced pluripotent stem (iPS) cells and embryonic stem (ES) cells produce highly similar definitive endoderm when differentiated in vitro. This suggests that iPS cells could be used for developing cell-based therapies for diseased endoderm-derived tissues.
Early-onset Alzheimer's disease can be identified through PET-CT examinations, which reveal a 'cognitive reserve' that slows symptom expression. This discovery supports earlier diagnosis and education to improve patient outcomes.
A team of scientists used genetic sequencing and supercomputing to determine that Xyloplax is not a new class of animals but rather a rare example of natural selection shaping its life cycle. The study found that Xyloplax has a truncated life cycle, retaining juvenile features into adulthood.
A 54-year-old man collapsed and was without a pulse for 96 minutes, but made a complete recovery thanks to continuous CPR, defibrillator shocks, and capnography. The case suggests further study of advanced life support techniques is warranted.
A 360-million-year-old mass extinction event devastated fish populations, allowing crinoids to thrive and diversify. The study found that the ripple effects of this extinction event could last millions of years.
Researchers at Max Planck Institute of Quantum Optics successfully stored quantum information in a single atom, overcoming previous challenges in photon-atom interactions. The technique uses a rubidium atom to store the quantum state of photons, enabling potential applications in powerful quantum computers and networks.
A study found that children's hospital mortality rates decreased over time in the absence of a Pediatric Medical Emergency Team. The researchers suggest other interventions may have confounded previous studies' results, highlighting the need for larger and better-designed PMET evaluations.
Researchers discovered a novel role for aquaporin-4 in brain inflammation, which causes astrocyte swelling and cytokine release. The study suggests that inhibition or down-regulation of aquaporin-4 expression may offer a new therapeutic option for diseases like multiple sclerosis and neuromyelitis optica.
A large waist circumference or high waist-to-hip ratio significantly increases the risk of death in coronary artery disease patients, even among those with a normal Body Mass Index (BMI). The study refutes the obesity paradox, suggesting that central obesity is a more critical factor than overall weight.
Researchers discovered that immune cells play a crucial role in the worsening of atopic dermatitis when exposed to food allergens, with implications for prevention and treatment. Additionally, studies identified TIF1-gamma as a tumor suppressor in mouse and human chronic myelomonocytic leukemia.
Researchers have found that itch receptors work through pain receptors on sensory neurons, suggesting a potential link between the two conditions. The study's findings could lead to new treatments for intractable itch, particularly in chronic diseases such as kidney and liver failure, diabetes, and cancer.
A joint study by academics in Switzerland, Germany, and at Boston University reveals a unique empirical law quantifying market behavior near price lows and highs. The researchers found that this law is valid for both small and large financial bubbles, suggesting that the formation of trends does not depend on time scale.
Tafluprost met primary endpoint in phase III study, showing comparable IOP-lowering effect to timolol. The medication achieved significant IOP reduction from baseline and demonstrated non-inferiority to existing treatments.
Parents with limited English proficiency have a longer hospital stay and fewer home health care referrals compared to those who speak fluent English. The study found that 39 out of 1,257 pediatric patients had LEP, resulting in median hospital stays of 6.1 days vs 4.0 days for proficient patients.
Research by Jennifer K. Bosson and Joseph A. Vandello finds that men's 'precarious' manhood is defined by achievements, not biology, making it vulnerable to social transgressions. This vulnerability leads to aggression as a way to restore manhood, with negative consequences on mental health.
A recent NIH-funded study demonstrates that moderate levels of secondhand smoke deliver nicotine to the brain, increasing vulnerability to nicotine addiction. The study's findings support policies banning smoking in public places, particularly around children.
A study of University of Washington graduate students using Kindle DX found that students want improved support for note-taking, referencing, and viewing figures. The device's limitations, including difficulty switching between reading styles and lack of physical cues, pose challenges for e-readers in the academic market.
Researchers use synchrotron radiation to detect amino acids in ancient bone tissue, confirming the presence of primary biomolecules. The study expands our understanding of protein preservation in fossils, challenging previous assumptions about the limited availability of soft tissues and endogenous biomolecules.
Researchers at Women & Infants Hospital of Rhode Island found that pregnant women infected with H1N1 influenza during the 2009 pandemic were more likely to give birth to lower-weight babies. The studies also tracked outcomes and determined the importance of timely antiviral treatment in pregnancy.
Two new studies show a significant drop in mammograms performed in women aged 40-49, leading to decreased benefits of early detection. Researchers found that cancers detected earlier through screening mammography presented at an earlier stage than those not screened, resulting in lower survival rates if guidelines are followed.
Two scientists, Patricia Ann Jacobs and David C. Page, received the 2011 March of Dimes Prize in Developmental Biology for their research on the X and Y chromosomes, expanding medicine's ability to diagnose and understand infertility and other diseases.
A study using DNA from museum specimens reveals a clear pattern of amphibian decline linked to the deadly fungus Batrachochytrium dendrobatidis. The researchers found that the fungus first appeared in southern Mexico in the early 1970s, spreading southward to Central America and causing mass extirpation of neotropical amphibians.
Advanced CT with 3-D scanning enhances detection of ingested or hidden contraband items, improving law enforcement efforts to combat international drug trafficking. This technology also helps healthcare professionals identify medical complications and prevent hazardous internal problems for drug smugglers.
A new study finds that small fish populations are just as likely to have collapsed in the last 50 years as large fish stocks. Small species were up to twice as likely to have suffered a major decline due to overfishing, highlighting their importance in the oceanic food chain.
The ENERCA network has published a series of recommendations for disease management and prevention of complications in children with sickle cell disease. The guidelines recommend universal neonatal screening, prophylaxis with penicillin, and transcranial Doppler scanning to prevent infections and strokes.
Research found that washing with contaminated liquid soap increases Gram-negative bacteria on hands 26-fold, and bacteria from contaminated hands can be transferred to secondary surfaces. This study highlights the importance of using sealed-soap dispensers in community settings.
The ACR white paper offers strategies for radiologist participation in accountable care organizations (ACOs), combining traditional image interpretation with new value-added services. The ACR is developing tools to assist members in the transition and advocating for radiologist compensation for these services.
A study found that family factors continue to protect adolescents from smoking, with parental connectedness and monitoring being key protective measures. The levels of these protective factors decreased over time, but remained important in reducing the risk of smoking initiation, particularly among minority groups.
Mary Shaw and David Garlan, pioneers in software architecture research, received the Outstanding Research Award from SIGSOFT for their significant contributions to the field. Their work has led to established research communities and engineering methods for architectural modeling and analysis.
Researchers discovered that excess beta amyloid protein clogs cell transport motors, causing abnormal cell division and defective neurons. The study suggests a new target for Alzheimer's treatment, allowing the brain to regenerate properly.
A Columbia University study found that business travelers have poorer health outcomes, including higher BMI and cholesterol levels, compared to those who travel less often. The study suggests that extensive travel is associated with negative health consequences, such as increased risk of cardiovascular disease.
A team of researchers used museum specimens to document a wave of <i> Batrachochytrium dendrobatidis </i> infection spreading from southern Mexico to western Guatemala and Costa Rica. The study highlights the devastating impact of this epidemic on amphibian populations, with over 40% in decline globally.
A Brazilian research team successfully established the first line of human embryonic stem cells (hES), but struggled to find a genetically diverse match for the diverse ethnic and genetic Brazilian population. The researchers overcame legal and ethical guidelines to create hES cell line BR-1, which is mostly European in origin.
Researchers found that higher cell chatter in affected regions boosts amyloid beta levels, contributing to plaque formation. Studies on mice suggest reducing activity in these regions may help prevent Alzheimer's plaques.
A new study found that Paranthropus boisei, a 1-million-year-old hominid, had a diet of 77% grasses and sedges, contradicting the long-held assumption of a nut-based diet. The analysis of carbon isotopes in fossil teeth revealed a preference for C4 grasses and sedges.
A study found that 27% of children in Canada received surgeries after the established six-month target date. Delays can affect physical and cognitive development, particularly in cases like strabismus and scoliosis.
Researchers found that people with extraverted personality traits are happier due to their positive view of the past. Savoring happy memories and reframing painful experiences in a positive light may boost life satisfaction.
A new device measures brain temperature non-invasively, allowing for more precise cooling therapies in infants and adults, with potential to reduce brain damage and death.
A half-million dollar research grant aimed at relaxing the ban on gay and bisexual men donating blood has not been accessed by Canadian researchers. The authors argue that new screening methods can detect HIV and hepatitis B and C early enough to protect the blood supply from infection.
Giant hummingbirds use more energy for their body size than smaller hummingbirds do, but still below the upper metabolic limit. Asexual fish hybrids have lower physiological performance, possibly due to increased reproductive advantage over sexual dace. Small sea birds hold heat rather than increasing metabolism
Renowned structural engineer Michael O'Rourke has been recognized with the American Society of Civil Engineers' 2011 Walter P. Moore Award for his significant contributions to snow load engineering, advancing building codes worldwide. His extensive research continues to inform design and safety standards.
Researchers found that skin contact with food allergens can lead to the reprogramming of gut-homing T cells into skin-homing T cells, exacerbating atopic dermatitis. This discovery has important implications for preventing and treating atopic dermatitis in patients with food allergies.
Researchers found that people with diabetes who sleep poorly have higher insulin resistance and worse control of their blood glucose levels. Poor sleep quality was associated with a 23% increase in morning blood glucose levels and a 48% increase in blood insulin levels.