Molecular beacons light path to cardiac muscle repair
Cardiac muscle cells can be purified using molecular beacons, enabling their use in treating heart diseases. The technique has broad applications across regenerative medicine.
Science News Archive 2013
Browse by Month - 2013
Page 117 of 352
What is the brain telling us about the diagnoses of schizophrenia and bipolar disorder?
Researchers found similar disturbances in cortical circuit function between schizophrenia and bipolar disorder, with individuals with schizophrenia showing more severe abnormalities. The study suggests a continuous spectrum of circuit dysfunction across the disorders.
Is that a testes or an iridescent stripe? A female squid's male-like true colors
Researchers have discovered that female Doryteuthis opalescens squid display male-like iridescent stripes that may help them evade male aggression. These unique markings are achieved through the activation of switchable leucophores and tunable iridocytes, which can produce a range of colors in response to neurotransmitters.
Hydrolyzed or non-hydrolyzed collagen: which one is suitable for nerve cell culture?
A study published in Neural Regeneration Research found that hydrolyzed collagen is suitable for nerve cell culture due to its ability to facilitate cell survival and neurite outgrowth. Non-hydrolyzed collagen matrices had no obvious effects on these processes, making hydrolyzed collagen a promising tool for neural tissue engineering.
Researchers determine digestibility of blood products as feed in weanling pigs
Researchers at the University of Illinois have determined the amino acid digestibility of five blood products produced in the US to provide swine producers with guidance for formulating diets. The study found that spray-dried blood products were good sources of amino acids, while flash-dried products had lower digestibility.
11 spacecraft show interstellar wind changed direction over 40 years
Data from 11 spacecraft shows a change in the direction of the interstellar wind, which may be due to turbulence near our solar system's edge. The heliosphere could be exposed to different directions of wind as it interacts with the local interstellar cloud.
Simulating Alzheimer's disease in transgenic mice
Researchers have developed an animal model to simulate the pathological process of Alzheimer's disease, focusing on the locus coeruleus. This study shows that degenerative alterations in noradrenergic neurons of the locus coeruleus are consistent with pathological changes observed in patients with Alzheimer's disease.
Risk to consumers from fungal toxins in shellfish should be monitored
Research reveals that contaminated bivalve molluscs contain toxins at higher levels than the surrounding environment, posing a risk to human health.
Study expands use of biomarker for early diagnosis of acute kidney injury
A biomarker test has been shown to accurately detect acute kidney injury (AKI) in a diverse group of patients admitted from the emergency department. The test measures neutrophil gelatinase-associated lipocalin (NGAL) and can provide results within 15 minutes, allowing for timely treatment.
Global warming has increased risk of record heat, say Stanford scientists
A new study by Stanford scientists found that extreme weather events, such as record-breaking heat, are more likely to occur in the US due to global warming. The researchers analyzed historical weather data and climate models to quantify the increased risk of severe heat events.
New technique to assess the cost of major flood damage to be unveiled at international conference
A new approach to calculating flooding costs will be presented at the International Conference on Flood Resilience. The methodology combines land use information with data on vulnerability to estimate past and future damage. This method has already been used in Barcelona and Dhaka to assess heavy rain event impacts.
NASA's HS3 Mission Global Hawk data used in National Hurricane Center forecast of Gabrielle
Data from NASA's Global Hawk aircraft assisted forecasters at the National Hurricane Center in analyzing Tropical Storm Gabrielle. The system showed a tilted structure with southerly to southwesterly vertical shear, and dry air in the mid-levels of the atmosphere.
UCLA researchers describe new form of irritable bowel syndrome
Researchers at UCLA have identified a new form of irritable bowel syndrome (IBS) that occurs after an acute bout of diverticulitis. The study, published in Clinical Gastroenterology and Hepatology, found that patients who developed IBS-like symptoms after diverticulitis may also experience mood disorders such as depression and anxiety.
Sudoku saves photographers from copyright theft
Researchers develop a Sudoku-inspired watermarking technology that can resist 9 out of 10 cropping attempts, providing robust protection for photographers and content owners.
New computational approaches speed up the exploration of the universe
Scientists have developed novel methods to identify thousands of molecules formed during hydrogen cyanide reactions in laboratory experiments. These approaches confirm the potential for these techniques in future chemical analyzes, including exploring autocatalytic cycles and understanding life's origins on Earth and other planets.
Disease-causing genes spread easily in emerging lethal fungus infection
A study found that emerging lethal fungus infection can easily pass its deadly genes to closely related fungal strains but less readily to distantly related ones. This understanding will help predict the spread of outbreaks and inform surveillance efforts.
Deep-ocean carbon sinks
A study by Tim Mattes and colleagues found that microorganisms in the dark ocean, below 600 feet, absorb considerable amounts of carbon. The team discovered sulfur-oxidizing microbes dominating carbon fixation at hydrothermal vents, which could provide insights into global biogeochemical cycles.
Young adults with autism found to have difficulty transitioning into employment
A study found that young adults with an autism spectrum disorder (ASD) face significant difficulties in transitioning into employment. Only half of this group had ever worked for pay outside the home, and only a third were employed at the time of the survey. However, outcomes improved for those who were older, from higher income househ...
Research findings point to new therapeutic approach for common cause of kidney failure
Researchers have discovered a process defective in patients with autosomal dominant polycystic kidney disease, a leading cause of kidney failure. Induced pluripotent stem cells from patients were reprogrammed to study human kidney disease mechanisms, revealing a potential therapeutic strategy by correcting a protein defect.
LSUHSC researchers develop new system to better study behavior, cell function
Researchers at LSU Health Sciences Center have developed a new technology, DREADD, to study behaviors and cellular function in fruit flies. The system allows for precise control of behavior and physiological processes, enabling scientists to model human diseases such as Alzheimer's and Parkinson's.
Illinois biologists and bioinformaticians unite to explore the origins of social behavior
A multidisciplinary team will investigate production of social behavior in the brain using honey bees, mice, and stickleback fish. The study aims to identify shared gene actions guiding social behavior across species.
Molecular marker predicts patients most likely to benefit longest from 2 popular cancer drugs
Researchers identified a molecular marker called Mig 6 that predicts longer survival among patients treated with two popular cancer drugs. The study found higher levels of Mig 6 in tumors that responded poorly to the drugs, while low levels were associated with prolonged survival.
Prion-like proteins drive several diseases of aging
Two neurology researchers propose that prion-like protein aggregates drive multiple brain diseases associated with aging. These seeds disrupt nervous system function and can stimulate the aggregation of other proteins, suggesting therapeutic strategies to combat these diseases.
Biodiversity where you least expect it: A new beetle species from a busy megacity
Researchers at Ateneo de Manila University discovered a new species of aquatic beetle in a small creek within the university's campus. The tiny insect, Hydraena ateneo, is one of 14 known species of its genus and highlights the diversity of life in urban areas.
Research highlights from ICAAC meeting
Researchers have identified changes in the microbiome that can predict chemotherapy-induced diarrhea and developed new diagnostics, including a breath test for fungal disease. A single dose of an antibiotic candidate has been found to be as effective as a week-long course of vancomycin for certain skin infections.
Life purpose buffers negative moods triggered by diversity
A study conducted on Chicago trains found that individuals with a sense of purpose in life are less affected by negative moods triggered by diversity. Those who had written about their life aims or had a strong sense of purpose did not experience worsened mood, unlike those without a clear direction.
LSU psychologist discovers intricacies about lying
A new study by LSU Associate Professor Sean Lane explores the cognitive machinery of lies, revealing that false descriptions are more accessible and durable in our memories due to the effort required to make them up. This finding has implications for police interrogation methods and forensic techniques.
Relationship of kidney function estimates to risk improves by measuring cystatin C in the blood
The study found that measuring cystatin C in the blood strengthens the association between kidney function and risks of death and end-stage renal disease. Kidney function stages categorized by cystatin C were better at reflecting future risk than those based on creatinine estimates.
Pest-eating birds mean money for coffee growers, Stanford biologists find
Stanford biologists found that leaving patches of rainforest in coffee plantations increases bird biodiversity and reduces borer beetle infestation rates. The birds' activity can increase yield by $75 to $310 per hectare, providing a sustainable win-win opportunity for pest management.
Researchers produce nanostructures with potential to advance energy devices
Arizona State University researchers develop nanostructures through dealloying process, showing promise for lithium-ion batteries with improved energy storage capacity. The porous nanostructures can also improve electrochemical sensing technology and provide more resilient radiation damage-resistant materials.
Training the older brain in 3-D: Video game enhances cognitive control
A specially designed 3-D video game has been shown to improve cognitive performance in healthy older adults. The game, NeuroRacer, enhances cognitive control and reverses some of the negative effects of aging on the brain.
Electronics advance moves closer to a world beyond silicon
Researchers have made a significant breakthrough in metal-insulator-metal, or MIM diodes, which could lead to the development of faster and more efficient electronic devices. The new diodes use a 'sandwich' structure to enable electron tunneling through insulators, potentially enabling precise control over device operation.
New breakthrough for structural characterization of metal nanoparticles
Scientists at Xiamen University and the University of Jyväskylä have successfully synthesized stable metal nanoclusters containing 44 metal atoms. The unique electronic structure of these clusters enables peaked absorption in a wide region of ultraviolet and visible parts of the electromagnetic spectrum. This breakthrough has significa...
Spouses play an important role in planning for retirement, researcher finds
Researchers found that spouses tend to have similar levels of retirement planning, which can lead to more success and less stress when leaving the workforce. Couples can make retirement a more positive experience by preplanning and discussing their expectations with each other.
Hibernating lemurs hint at the secrets of sleep
Researchers studying hibernating fat-tailed dwarf lemurs found they can go days without deep sleep during winter hibernation. This supports the idea that sleep regulates body temperature and metabolism in humans.
Wetlands could be key in revitalizing acid streams, UT Arlington researchers say
A team of UT Arlington biologists discovered that watershed wetlands can improve stream health by binding toxic aluminum and reducing inorganic acids. This process, known as brownification, may also aid in recovering biological communities from industrial acidification.
Heart attack death rates unchanged in spite of faster care at hospitals
A study found that heart attack mortality rates have not declined despite a significant reduction in door-to-balloon time, highlighting the need for further strategies to improve care. The analysis of 100,000 heart attack admissions revealed that faster treatment times did not lead to better patient outcomes.
New laser-based tool could dramatically improve the accuracy of brain tumor surgery
Researchers have developed a new laser-based technology that can distinguish between cancerous and healthy brain tissue in real-time during surgery. This could lead to better outcomes and longer survival rates for patients with glioblastoma multiforme, the most deadly type of brain tumor.
Look at what I'm saying
A study by University of Utah bioengineers found that visual cues can dominate sound perception, leading to the McGurk effect. The team used brain signal recordings to demonstrate how vision overrides hearing in certain conditions.
Pain-free microneedle influenza vaccine is effective, long-lasting
Researchers developed a microneedle patch that delivered an effective and long-lasting influenza vaccine, providing 100% protection in mice over one year. The vaccine used virus-like particles coated on needles, reducing refrigeration needs and potential side effects.
Canadian group gives guideline recommendations for lung cancer screening
A new set of evidence-based guidelines recommend lung cancer screening for high-risk populations in Ontario using low-dose computed tomography (LDCT). The guidelines suggest annual screening for two years, followed by biennial screenings until a negative result is obtained. The recommended parameters for LDCT include 120 to 140 kVp and...
Outside mentoring support for science faculty at minority-serving institutions pays off
A matched-peer controlled study found that an outside mentoring support program increased the number of peer-reviewed research publications, federal grants, and professional activities among minority-serving science faculty members. The program showed significant results in advancing academic interests.
Researchers study survival in African American versus Caucasian lung cancer patients
A prospective cohort study of 81,697 racially diverse adults found that lung cancer survival between black and white patients was similar when demographic factors and smoking were controlled. The study aimed to address racial disparities in lung cancer survival rates.
Treatment of children with cerebral palsy could be boosted by Strathclyde research
Researchers at the University of Strathclyde are working to better understand how cerebral palsy affects children's speech. They hope to develop more effective treatments by analyzing speech patterns in over 40 affected youngsters.
The difference between obsession and delusion
Tel Aviv University researchers used zoological methods to classify symptoms of OCD and schizophrenia in humans. The study found that schizo-OCD patients exhibited both OCD-like behavior and symptoms of schizophrenia, suggesting it's a combination of both disorders.
'Seeing' faces through touch
Researchers found that adapting to a face explored by touch shifts visual face perception, and the effect works both ways. This study challenges traditional views on face processing, suggesting a shared representation between vision and haptics in the brain.
Antioxidant effect of resveratrol in the treatment of vascular dementia
A study published in Neural Regeneration Research found that resveratrol improved learning and memory ability in rats with vascular dementia. The compound also reduced malonyldialdehyde levels and increased superoxide dismutase activity and glutathione levels, indicating a potential therapeutic effect.
Study shows that people who undergo cataract surgery to correct visual impairment live longer
Researchers from the American Academy of Ophthalmology found a 40% lower long-term mortality risk among patients who had their vision corrected through cataract surgery. The study, which followed over 350 participants, suggests that correcting cataract-related visual impairment results in improved outcomes beyond just eye health.
Back of pack health warnings make little impact on teen smokers
Research suggests that pictorial warnings are more effective than text alone but are less visible on the back of packs. The study found that only one in ten teens thought about the warnings when they weren't in sight, and regular smokers were not deterred by the warnings.
Psychological effects of genetic testing for risk of weight gain
A new study found that genetic testing for weight gain risk does not deter people from weight loss efforts, but rather alleviates emotional stress and stigma associated with weight control. The results suggest that individuals recognize the importance of both genetics and behavior in maintaining a healthy weight.
Juniper essential oil characteristics determined
A recent study found that the concentration of essential oil in Rocky Mountain juniper leaves varies from 0.335% to 0.799% and is affected by seasonal changes and tree gender, with male trees generally having higher oil content.
Drexel researchers looking inside vessels to understand blood's ebb and flow
Researchers at Drexel University are creating a mathematical model that explains how blood vessels regulate the flow of blood. The team aims to gain a better understanding of nitric oxide production and its role in cardiovascular function, which could lead to new insights into vascular disease prevention.
Bismuth-carrying nanotubes show promise for CT scans
Rice University scientists have developed bismuth-filled nanotubes as a contrast agent for CT scans, producing brighter images than common iodine-based agents. The nanotube capsules are small enough to diffuse into cells and aggregate to produce high-contrast images.
Biomaterials for repair of long-segment peripheral nerve defects
Researchers have developed a nanofibrous poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nerve conduit for the repair of long-segment sciatic nerve defects. The study found that regenerated nerves were macroscopically observed and histologically assessed, with restoration of nerve continuity and formation of myelinated nerve fibers.
What scientists can see in your pee
Researchers at the University of Alberta have identified over 3,000 chemicals in human urine, expanding the list from just 50-100 previously known compounds. This discovery is expected to revolutionize medical testing, enabling fast, cheap, and painless tests using urine instead of blood or tissue biopsies.
Yelling doesn't help, may harm adolescents, Pitt-Led study finds
A new study led by Ming-Te Wang found that harsh verbal discipline may exacerbate behavioral problems and depressive symptoms in adolescents. Researchers suggest that parents should communicate with their children on an equal level to prevent these negative effects.
Gravity variations much bigger than previously thought
A joint Australian-German research team has created the highest-resolution maps of Earth's gravity field, showing variations up to 40 percent larger than previously assumed. The new maps were calculated at three billion points and will improve civil engineering projects such as building canals, bridges, and tunnels.
Using harsh verbal discipline with teens found to be harmful
A new longitudinal study found that using harsh verbal discipline with teenagers can lead to detrimental outcomes later, including increased depressive symptoms and conduct problems. The study suggests that parents who use harsh verbal discipline may inadvertently increase their children's behavioral issues.
University research team's new approach enhances quantum-based secure communication
A University of Calgary research team has developed a new approach to enhance quantum-based secure communication systems, overcoming a major vulnerability that threatened the security of QKD-secured networks. The new protocol allows for secure key distribution over long distances without compromising secrecy.
Clinical tool accurately classifies benign and malignant spots on lung scans of smokers
A new clinical risk calculator software has been developed to accurately classify benign and malignant spots on lung scans of smokers. The software uses a prediction model that considers several factors, including size, age, family history, and location of the nodule, to predict the probability of cancer.