A UCLA study reveals that depression may increase the risk of developing Alzheimer's disease in individuals with mild cognitive impairment. Researchers also found that the medication donepezil can delay the progression of Alzheimer's in depressed individuals with memory problems.
A study on rural tourists' profile in Spanish villages with limited inhabitants highlights the importance of emotional and cognitive aspects of travel. Key factors influencing traveler behavior include historical-cultural wealth, cleanliness, and welcome from local residents.
Researchers found that sinus infections are a primary cause of toxic shock syndrome in about one-fifth of cases in children. Children with both conditions had more severe symptoms and required intensive care, but prompt imaging studies can help diagnose the underlying infection.
Researchers have developed a novel form of treatment using an alpha-particle emitting radiopeptide that targets and destroys cancer cells while sparing healthy tissue. The study found that this therapy was significantly more effective at tripling the survival rate of mice with recurrent prostate cancer compared to traditional treatments.
Researchers have developed a low-cost strategy to discover new drugs for neglected diseases, utilizing global educational resources and distributed problem-solving. Students worldwide are synthesizing candidate molecules, meeting industry standards, and participating in the process.
A study found that psoriasis is associated with an increased risk of cardiovascular disease, including ischemic heart disease, cerebrovascular disease, and peripheral artery disease. Patients with psoriasis were also more likely to die from these conditions, highlighting the need for vigilance in screening for cardiovascular risk factors.
The University of Leicester has launched G-STEP, a business-facing service that harnesses space technology for earth-bound benefits. Researchers are working with businesses and public sector organisations to provide value-added services exploiting environmental data from the GMES system.
Researchers have developed a new crosslinking method called TRAP to study protein interactions in living cells. The method uses small crosslinkers that can be controlled with light to identify proteins working together, revealing new details about RNA polymerase in bacteria.
Researchers at Northwestern University have developed a novel method to separate cancer cells from normal cells by directing their movement along preferred directions. The technique utilizes ratcheting technology and has the potential to create a
Researchers found that microglial cell degeneration contributes to loss of neurons and dementia, contradicting the popular neuro-inflammation theory. The study suggests that anti-inflammatory drugs may not be effective in fighting dementia.
A new study identifies New York and eastern U.S. cities as prime locations for exploiting high-altitude winds, which contain enough energy to meet world demand 100 times over. The regions match population centers and have high wind power densities, but fluctuating wind strength poses a challenge for large-scale exploitation.
A study published by Cincinnati Children's Hospital Medical Center identified a critical gene, SHP2, essential for normal heart and skull formation. Neural crest cells' differentiation failure leads to severe anatomical and functional deficits.
Researchers at King's College London discovered a key element in the development of chronic asthma, linking airway remodelling to muscle cell changes. The study found that reducing SERCA2 levels in airway muscle cells may lead to effective new treatments for severe asthma.
Researchers have discovered that calcium modulation affects long-term memory specifically while leaving learning and short-term memory intact. The study found that increased calcium levels during learning led to stronger responses to olfactory stimuli associated with food, indicating improved memory performance.
Temple University's School of Podiatric Medicine has received a $650,000 NIH grant to test the effectiveness of a personalized, visual diabetic foot education strategy. The program aims to improve health literacy and empower patients to make better decisions about their foot care.
High levels of brain energy are necessary for maintaining consciousness, according to Yale researchers. The study proposes that a conscious person requires a high level of brain energy, which supports human behavior and should be considered when interpreting fMRI signals.
Researchers at MIT identified the cause of concrete creep and found a way to slow its rate, enabling ultra-high-density materials that can last hundreds of years. This breakthrough could lead to enormous cost-savings and reduced CO2 emissions in construction.
A new study by researchers at Rush University Medical Center found that possessing a greater purpose in life is associated with lower mortality rates among older adults. The study used data from 1,238 community-dwelling elderly participants and found a substantially reduced risk of mortality among those with high purpose in life.
The Palomar Transient Factory (PTF) utilizes NERSC's tools to uncover relatively rare cosmic events like supernovae and gamma ray bursts, discovering over 40 in its commissioning phase. The survey combines automated analysis with high-end systems and networks, enabling rapid follow-up observations.
A recent MSU-led study found that Brazil's protected areas within the Amazon can buffer the forest from climate change even if the remaining area is deforested. The researchers used atmospheric computer modeling to simulate a worst-case scenario and found rainfall levels would not decrease significantly.
Scientists have identified a new approach to detect and treat Peutz-Jeghers syndrome, a rare inherited cancer syndrome, by exploiting tumors' weak spot in glucose metabolism. They found that targeting mTOR pathway with rapamycin can stop tumor growth, offering new treatment options.
Researchers have gained insight into the regulation of aquaporins in yeast cells, revealing a previously mysterious region that acts as a gate controlling water flow. This discovery may lead to the development of inhibitors for human aquaporins, which could slow down cancer tumor growth.
Scientists from A*STAR's IMRE invented the world's smallest controllable molecule gear of 1.2nm size, revolutionizing molecular machines. The breakthrough was achieved through optimizing molecular design, manipulation and surface atomic chemistry.
The USF-Moffitt Cancer Center has been awarded a $6 million grant to create a National Center on Minority Health and Health Disparities Center of Excellence. The center will focus on reducing health disparities among minority and underserved communities in Florida through research, education, and community outreach.
Scientists have identified a method to predict which HIV-positive individuals are most susceptible to deadly fungal meningitis. The study found that people with low levels of IgM memory B cells are more likely to develop the disease, suggesting a genetic predisposition.
A study by Indiana University Center for Health Policy and Professionalism found that 59% of physicians support government legislation for National Health Insurance. Nearly every medical specialty showed an increase in levels of support for national health insurance.
Researchers at Virginia Commonwealth University discovered a stable cluster of atoms that can mimic different elements of the periodic table, exhibiting strong magnetic properties. The discovery has potential applications in creating faster computers, larger memory storage, and molecular electronic devices.
A new study found that consumers experience greater delight when winning a prize without immediate knowledge of its value. This positive uncertainty can stimulate mental imagery and prolong positive feelings, making winners more receptive to marketing messages.
A study by UC Davis geochemists has produced the first picture of how different isotopes of iron were initially distributed in the solid Earth 4.5 billion years ago. The discovery could lead to investigations into the evolution of Earth's mantle and its geologic history.
Researchers successfully treated basal cell carcinoma with a non-toxic radioactive patch, showing minimal scarring and no toxicity. The treatment delivered beta radiation to the cancer site, effectively eradicating the malignant cells.
Researchers found that thinking about similar experiences accelerates recovery from satiation, as people tend to forget the variety they had in their lives. By recalling past favorite experiences, consumers can regain enjoyment and appreciate their current experience more.
Research by Sievert Rohwer and colleagues reveals that maximum body size in birds is constrained by the molt process. As bird size increases, feathers wear out before they can be replaced, requiring alternative strategies to maintain aerodynamic support. This fundamental relationship ultimately limits the size of flying birds.
Researchers at the University of Leeds have discovered a key mechanism governing gene evolution, revealing that protein REST controls gene expression by binding to specific genetic sequences. This process has been shown to play a leading role in the evolution of intelligence in mammals, particularly in the brain.
Researchers at the University of California, Berkeley, have found a critical piece in the puzzle about how stress causes sexual dysfunction and infertility. Stress hormones, such as glucocorticoids like cortisol, inhibit the body's main sex hormone GnRH, while also increasing another hormone GnIH, which directly inhibits GnRH.
Research by Sabrina McCormick links everyday products to breast cancer, citing industrial pollution and agricultural pesticides as contributing factors. Experts urge policymakers to ban cancer-causing chemicals in everyday products, promoting prevention over a cure.
Researchers investigated calcium supplementation's effect on obese patients' weight loss, found no benefits. Red yeast rice capsules improved LDL cholesterol levels in statin-intolerant patients without muscle pain side effects. Colonoscopy-related adverse events were low but increased with age and specific comorbid conditions.
Researchers found that brief motivational interviews and one-on-one counseling programs significantly reduced heavy drinking and improved behavior among high-risk students. Community-based initiatives, such as increased police patrols and online alcohol policies, also showed promise in reducing off-campus incidents involving students.
Researchers at Carnegie Mellon University have identified a novel regulatory gene network that plays a crucial role in the spread of invasive yeast infections. The study reveals that Zap1 protein regulates the production of biofilm matrix, promoting infection and drug resistance.
A new study in CMAJ reports that oseltamivir and zanamivir are relatively safe for use in pregnant and breast-feeding women during the H1N1 pandemic. Pregnant women, especially those in the third trimester, are at high risk of serious complications from the flu virus.
Researchers at Caltech discovered a material that does not expand when heated, like most metals, and behaves like a metal with an entirely different chemical composition. By applying high pressure, they created nonexpanding metal alloys by forcing electrons into new states.
Researchers at SNM's Annual Meeting discovered that combining motion-frozen technology and high-definition PET enhances cardiac imaging, revealing defects invisible to physicians. The method provides exceptional image quality and significantly changes the diagnosis of patients with heart disease.
The Carnegie Institution's CASE and Math for America (MfA) partnership aims to recruit, train, and retain effective secondary school mathematics teachers in Washington, D.C. The program has received a $1.5-million NSF grant to support 14 Fellows over the next four years.
A study on rats reveals that neural replay of past experiences occurs both during and after wakefulness, forming long-term memories more accurately. The hippocampus replays events in peppered bursts, often involving different settings, suggesting elements of past experience are constantly reactivated.
Research finds stalled microtubules in cells with faulty dynamin 2 protein, leading to reduced nerve impulse strength and slowed movement. The stable microtubules disrupt normal cellular processes, including the formation of the Golgi complex.
A new tool developed at Purdue University helps sort out how to choose the best non-point source pollution control strategies for water resources. By analyzing data from an area, it can compute the most cost-effective solutions in just a few hours.
Researchers found that applying a chemotherapy medication to the face reduced actinic keratoses by 87% and improved signs of aging. The treatment also showed promise in addressing photo-aging, with patients reporting improved skin appearance and willingness to undergo therapy again.
Researchers have developed a new fully integrated PET/MRI system that can provide whole-body images of rats and small animals. The system offers significant improvements in imaging capabilities, enabling increased understanding of disease characteristics and physiological processes.
Researchers found that young autoreactive T-cells are more receptive to reeducation into regulatory T-cells. In contrast, older T-cells become fully activated and cause damage. Understanding the developmental stage of T-cells holds promise for developing new therapies for autoimmune diseases.
Researchers found that people are more likely to buy Extended Service Contracts for hedonic products like game controllers, which hold value due to the pain of potential loss. Price promotions also play a role, with low-income consumers more likely to purchase ESCs as they cannot afford replacements.
The new issue of Reproductive Health Matters highlights the need for comprehensive efforts to strengthen public health systems and create a well-trained workforce. Mid-level providers are willing to take on increased workloads, raising questions about quality of care and financial remuneration.
Researchers at the University of Alberta have discovered how proteins recognize and repair damaged DNA. The proteins bend the DNA double helix to amplify damage recognition, enabling the next protein to cut out the damaged section. This process can be used to develop new cancer treatments and disease prevention strategies.
A team of researchers led by Dr. Jayakrishna Ambati at the University of Kentucky has discovered a biological marker for neovascular age-related macular degeneration (AMD). The marker, CCR3, shows strong potential as a means for both early detection and preventive treatment.
A study in Journal of Consumer Research found that India's anti-Coca-Cola movement employs nationalism and swadeshi ideology, invoking imagery of foreign invasion and exploitation. The authors argue that global brands can become symbols of oppression, with implications for multinational corporations and policy makers.
Researchers at Whitehead Institute for Biomedical Research discovered a microRNA, miR-31, that inversely correlates with metastasis in breast cancer. Increasing miR-31 levels can help predict patient prognoses and potentially aid in the development of targeted therapies.
Researchers found a blood chemical that may signal susceptibility to interstitial cystitis, a painful bladder disorder. The study suggests the disease may have origins in the central nervous system and could lead to new treatment directions.
Researchers have developed a gene delivery approach to target therapeutic genes to nerves in the dorsal root ganglion (DRG), a region affected in various sensory neuronopathies. This method, using helper-dependent adenoviruses, was found to be more efficient at delivering genes to DRG nerves compared to nontargeted versions.
Researchers at Medical College of Wisconsin published first paper describing Milwaukee's largest swine origin influenza (H1N1) outbreak in June 2009. The study identified 679 adults and children with S-OIV infection, making up 18.2% of all tested individuals.
A new study suggests that college-community cooperation programs can help reduce heavy episodic drinking, with a Western Washington University program showing a decline in student binge drinking. The findings highlight the importance of collaboration between colleges and their surrounding neighborhoods to combat problem drinking.
Studies found that glove perforation increased surgical site infection rates by 10%, with no association when antibiotics were used. Implementing measures like double gloving and glove replacement can decrease perforation risk.
Researchers at Baylor College of Medicine have developed a system to target therapeutic genes to nerves in the dorsal root ganglion (DRG), showing dramatic efficiency in gene delivery compared to nontargeted adenoviruses. In mice lacking the Hexb gene, administration of DRG-targeted helper-dependent adenoviruses carrying the Hexb gene ...
Researchers suggest a new paradigm for coping with cybercrime by shifting focus from punishment to deterrence and prevention. Individuals must recognize their own front-line defense against cybercrime and work together to build and maintain defenses.
Researchers at Penn found that people ignore crucial information when making decisions, leading to miscalculations of body weight and calories. The 'Unit Bias' heuristic causes participants to focus solely on certain dimensions, neglecting others.
Scientists at the University of Illinois have developed a light-emitting transistor that sets a new record for signal-processing modulation speed, reaching 4.3 GHz. By reconfiguring the device as a tilted-charge light-emitting diode, researchers were able to break the 7 GHz barrier.
Dr. Charles W. Clendening received the 2009 AIAA Plasmadynamics and Lasers Award for his work on scalable high energy chemical oxide-iodine lasers. He has spent over thirty years developing high power laser technology, previously working for the US Air Force and TRW.
Researchers at UCLA's Jonsson Comprehensive Cancer Center have developed a unique model to isolate and study lung cancer stem cells. The model uses patient specimens and autologous tumor microenvironments to identify markers associated with cancer stem cells, providing proof-of-concept for the existence of these cells in lung cancer.
A new online decision tool allows prostate cancer patients to weigh their own preferences against medical data to personalize treatment plans. The tool considers multiple factors, including life expectancy and side effects, to guide treatment decisions.
Research suggests that estrogens acting through their receptors affect the dopamine transporter, which may explain trends in timing of women's susceptibility to these diseases. Estrogen levels vary significantly at different life stages, and women are more likely to experience neurological disease onset or exacerbation during these times.
A new species of stinkhorn mushroom, Phallus drewesii, has been discovered on the African island of Sao Tome. The mushroom is notable for its small size, white net-like stem, and brown spore-covered head.
A new study presents PET scan results that can accurately diagnose specific types of dementia, such as Alzheimer's disease, in the early stages. This can lead to targeted treatments and improved care outcomes for over 5 million newly diagnosed patients each year.
Scientists have identified a molecular factor called GARP that plays an essential role in regulatory T cell function. By artificially inserting GARP into transplants, researchers were able to convert immune-reactive T cells into regulatory T cells, which inhibit organ rejection.
Dr. Maya Saleh will investigate the regulation and molecular mechanisms of NLR-mediated innate immunity using a six-year grant from the Burroughs Wellcome Fund. The goal is to identify genes needed for defense against infections, shedding light on human host interactions with infectious agents.
A study of 1,008 patients with obstructive sleep apnea found a significant association between REM-related OSA and type 2 diabetes, with adjusted odds ratios up to 2.8 times higher in middle-aged participants. The researchers suggest that REM-related OSA may be an early marker for type 2 diabetes, especially in women and younger patients.
Physicists have confirmed the existence of a type of material that enables free flow of electrons across its surface with no loss of energy at room temperatures. The discovery of bismuth telluride as a topological insulator could lead to new applications in spintronics and microchip development.
A series of studies published in the Journal of Studies on Alcohol and Drugs found that college prevention programs can effectively reduce heavy episodic drinking and other alcohol-related problems. The programs included counseling for individual students, neighborhood-based initiatives, and community engagement efforts.
Darwin's work has withstood decades of analysis, confirming that animals' mating choices can drive evolutionary change. Molecular markers have also been developed to study paternity and the driving forces behind sexual selection.
A recent study found that US counties with a higher percentage of African-American patients tend to have fewer gastroenterologists and radiation oncologists, while those with more Asian Americans have more specialists. This disparity is linked to disparities in access to quality healthcare services.
Researchers at SNM's 56th Annual Meeting propose a novel approach to reconstructing data that could enable the development of a hybrid PET-MR system. The new method uses MR images as a geometrical reference to estimate attenuation and improve accuracy.
A new study in the Journal of Consumer Research reveals that emotions connected with asking for favors can drive individuals to seek simpler transactions in the marketplace. This phenomenon is linked to feelings of perpetual obligation and social indebtedness.
A new study found that people with stroke impairments experience delays in gripping and releasing objects, but using an arm support device can improve release speed. Active muscle-stretching exercises also showed promise, helping with grip initiation but delaying release.
A team of MIT researchers has developed a new approach to designing stretchable electronics by studying the delamination of stickers, which can lead to damage in twisted materials. By controlling the strength of adhesion and elastic properties, they can create devices that allow wires to move with the material without breaking.
Researchers found that combining high-resolution and high-sensitivity collimation in SPECT scans improves image quality for small tumors. This study suggests a new approach to overcome tradeoffs in SPECT image quality, especially for imaging small tumors.
Researchers at Mayo Clinic have found a peptide that preserves and improves kidney function during heart failure, potentially reducing the risk of kidney damage. The new compound has been tested in laboratory and animal models and is expected to move into clinical trials next year.
Researchers at McMaster University found two types of males in the invasive round goby, including nest-guarding males and sneaker males that parasitize conventional males. This discovery may help scientists understand how to tackle the infestation of Great Lakes watersheds.
Researchers at SNM's 56th Annual Meeting present a prototype breast imaging system combining positron emission tomography (PET) and magnetic resonance imaging (MRI) technologies. The system aims to provide highly sensitive and specific breast cancer examinations while compensating for the shortcomings of individual PET or MRI systems.
A recent government study reveals a rise in college drinking problems, including heavy episodic drinking, drunk driving, and alcohol-related deaths. The study found that these issues are particularly prevalent among students aged 21-24.
Scientists have discovered a novel signaling pathway in dendritic cells that can be activated by bacterial fragments, leading to the activation of NFAT and triggering an immune response. This discovery has identified potential new therapeutic targets for diseases such as sepsis and chronic heart failure.
Researchers found that ad responses depend on mental energy and attention devoted to the ad, with disinterested consumers reacting to less nuanced messages. Positive ads may not be more persuasive among interested consumers who invest considerable mental resources.
The Gene Expression Atlas collates data from over 1000 studies, providing insights into gene function and development of new drugs. The resource allows users to query gene expression under various conditions, enabling researchers to identify key genes in specific diseases.
A novel method has been developed to analyze microRNA expression levels, enabling more accurate detection of subtle biological changes. The new approach outperforms existing methods in reducing technical variation and accurately representing input RNA fluctuations.
A recent study published by the American Academy of Neurology found that individuals with depression and mild cognitive impairment are at a higher risk of developing Alzheimer's disease. The study also showed that taking donepezil may delay progression to Alzheimer's for those with memory problems.
A recent study found that adherence to the Dietary Guidelines for Americans slows the progression of atherosclerosis in women. The study's results highlight the importance of whole-grain, total fat, and cholesterol intake in reducing cardiovascular disease risk.
New research using meteorite grains reveals that the material incorporated into Earth's planets and life has younger cosmic roots than previously thought. The study found that most of these grains spent less time in interstellar space than estimated, with some as young as 3 million years old.
A meta-analysis of published studies on Bell's palsy found no improved recovery with corticosteroids and antiviral combination therapy. Facial motor function recovery was not significantly different between the two groups.
A study found that young adults decreased their calcium and dairy product intake as they entered their twenties, which can lead to a higher risk of osteoporosis. The researchers suggest that interventions targeting families and adolescents should encourage milk consumption at meals and promote healthy eating habits.
Researchers at the SNM's 56th Annual Meeting found that PET scans can accurately diagnose infections in prosthetic knee joints, outperforming traditional methods. This breakthrough could lead to improved treatment outcomes for patients undergoing joint replacements.
Scientists identified a protein that regulates mitochondrial movement in brain cells, shedding light on how the brain recovers from stroke. Understanding this mechanism may help identify novel approaches for preventing and treating neurological disorders.
Researchers will investigate the human innate immune system and its role in protecting against infections like HPV, which is more frequently associated with the genital tract. The study aims to understand how oral health plays a crucial role in overall health and why some people are better protected than others.
A new study has revealed a significant decrease in the sex difference in birth weight due to growing endocrine disruption related to environmental contaminants. The study found that exposure to contaminants in plastic materials may be responsible for this phenomenon.
A report by Rice University scientists warns that growing biofuels could harm the nation's water resources, degrading quality and affecting availability. The researchers suggest choosing drought-tolerant crops grown on minimal irrigation to balance energy needs with water conservation.
The new system detects sepsis in real-time, alerting doctors to potential cases. The team also plans to add an automated decision support system to guide physicians through sepsis treatment.
Researchers found that bundling two products together and describing one as free leads consumers to devalue individual items. This effect, known as the 'freebie devaluation' effect, occurs because consumers make inferences about product quality based on the perceived value of the free item.
Researchers discovered the large blue butterfly's extreme dependence on a single ant species led to its demise. The study reveals how habitat overgrowth caused soil temperatures to drop, resulting in diminishing ant numbers and ultimately, the butterflies' decline.
A study shows that CPAP therapy significantly improves complaints of fatigue, tiredness, and sleepiness in patients with obstructive sleep apnea. Good adherence to CPAP was associated with improved symptoms, particularly among inadequately treated participants.
Scientists have created a high-resolution climate record from ocean sediment dating back over 500,000 years, revealing four glacial cycles and the warming of North Atlantic waters. The record provides valuable insights into the extent of ancient ice sheets and their impact on ocean currents.
The Network of African Science Academies (NASAC) urges G8+5 countries to invest in rebuilding universities and research centers in Africa. NASAC also calls on the international community to support young African scientists seeking postgraduate and postdoctoral training.