Researchers found that marijuana use in adolescence can lead to impaired cognitive abilities and abnormal brain activity, persisting into adulthood. The study suggests a critical period of development during adolescence where marijuana exposure can have lasting effects on brain function and cognition.
A study of 17 women who had a heart attack found that most feared resuming sex due to health concerns. Despite these fears, many resumed sex within four weeks, driven by a desire to reconnect with their partners.
A study from The Children's Hospital of Philadelphia found a central signaling response in mitochondrial energy diseases, which may offer a common avenue for targeted treatments. Nicotinic acid partially restored normal functioning in cells taken from patients with mitochondrial disease.
A team of researchers discovered that a population of brown trout can survive in highly contaminated waters by changing the expression of their genes. The study found that these fish have developed strategies to detoxify metals and maintain ion balance, allowing them to thrive in environments where other fish would be lethal.
A research team found Radix Achyranthis Bidentatae inhibits advanced glycation end product formation, reducing levels in the frontal cortex and improving learning and memory capabilities in ovariectomized rats. The plant's antioxidative effect may contribute to its neuroprotective properties.
A new pocket-sized sensor can instantly measure acetone levels in exhaled breath to gauge fat burning progress. Developed for individualized dieting programs, the device is a practical alternative to standard methods, enabling users to monitor their own fat metabolism at home or outside.
Scientists have mapped the genomes of two oil palm species and identified a critical gene for yield improvement. The discovery has implications for enhancing sustainable palm oil production while reducing pressure on wild rainforests, which account for nearly half of global edible vegetable oil.
A new study published in PLOS ONE found that winter flounder populations in Long Island's bays are experiencing severe inbreeding due to low effective numbers of breeders. This has significant implications for fisheries management and the long-term survival of these marine fish.
Researchers at Johns Hopkins Children's Center have identified a genetic pathway implicated in various allergic disorders, including asthma and eczema. A faulty protein called transforming growth factor-beta (TGF-beta) disrupts immune cell function, leading to the development of allergies.
Scientists discovered a molecular switch that regulates regeneration in flatworms, enabling them to grow heads complete with brain, eyes, and wiring. This breakthrough could lead to insights into why some animals regenerate while others don't, potentially informing regenerative therapies for humans.
A multicenter study found that whole-body CT scans significantly lower mortality rates for severely injured patients in shock. The comprehensive knowledge gained from the scan enables targeted life-saving emergency treatment, leading to a 25% increased chance of survival.
A new theoretical model suggests that an outburst event in the Sun's formative years could explain disparate evidence from comets and meteorites. The model also provides a possible explanation for the presence of heat-formed crystalline particles in comets and the ratios of aluminum isotopes found in primitive meteorites.
The SIBS Program aims to cultivate healthy and supportive sibling relationships by teaching children how to share responsibilities and practice making decisions together. Results from a randomized trial demonstrate improved positive interactions, increased self-control, and enhanced social competence among participants.
Researchers have developed new techniques using lasers, LEDs, and optics to visualize and analyze the skin's structure and function. These methods hold promise for various medical applications, including burn treatment, cancer detection, and wound healing.
A study at Columbia University Irving Medical Center identifies key molecular pathways leading to late-onset Alzheimer's disease. The research highlights several new potential drug targets, including SV2A and RFN219, which are involved in the processing and trafficking of amyloid precursor protein.
Researchers at Scripps Research Institute discover that parkin enzyme loss leads to reduced levels of protective protein Fbw7β, causing neuronal stress and death. Targeting Fbw7β may offer a new neuroprotective strategy for Parkinson's disease and other neurodegenerative disorders.
Researchers using ALMA discovered that Sculptor Galaxy is expelling massive concentrations of cold gas through galactic winds, depriving the galaxy of fuel for new stars. This phenomenon may explain why few high-mass galaxies are observed in the cosmos, as starburst-driven winds recycle rather than remove star-forming material.
Researchers will use whole genome sequencing to inform couples about reproductive risks before they conceive, testing for rare diseases like Tay-Sachs and Canavan. The study aims to provide accurate genetic information to help couples make informed reproductive decisions.
Researchers have found a virus in South African bats that is genetically more closely related to MERS-CoV than any other known virus. This discovery suggests that African bats may play a role in the evolution of MERS-CoV predecessor viruses, potentially leading to human infection through intermediate hosts such as camels.
Researchers used eye-tracking to investigate what attracts female peahens to male peacocks. The study found that peahens spend most of their time gazing at the lower portion of the train, rather than its showy upper feathers. This suggests that the lower train may be the primary attraction for females.
Researchers documented an acceleration in coastal Antarctic permafrost melt rates, rising to 10 times the historical average. The change is attributed to increased sunlight due to changes in weather patterns, leading to 'retrogressive thaw slumps' and potential dramatic increases in melting if Antarctica warms as predicted.
Researchers discovered that bacteria and algae played a crucial role in the disappearance of coral-stromatoporoid reefs before 370 Ma, leading to insights into modern coral bleaching. This study sheds light on the devastating impact of blooming bacteria and algae on ancient reef ecosystems.
A team of astrophysicists discovered the extent to which quasars and black holes shape their galaxies. They found that quasar radiation can illuminate gas up to a galaxy's boundaries, influencing star formation and galaxy growth. The study uses observations from the Southern African Large Telescope and NASA's WISE space telescope.
A Smithsonian scientist has found that similar color patterns in fish larvae indicate a closer evolutionary relationship among species than their adult forms. The research, published in the Zoological Journal of the Linnean Society, reveals phylogenetic connections between marine fish species.
A brain imaging study found that individuals with psychopathy can activate their empathy when asked, but struggle to do so spontaneously. This challenges the notion that psychopaths are incapable of feeling emotions.
Research in Taiwan found a link between stopping cholesterol medication and an increased risk of developing Parkinson's disease. Fat-soluble statins were associated with a reduced risk, while hydrophilic statins showed no such correlation.
Researchers have developed a tiny, light-controlled gold particle that can release DNA controls to switch blood clotting on and off. This two-way switch relies on selective release of different DNA molecules from gold nanoparticles under different laser wavelengths.
Despite increased efforts by Christian leaders and organizations to promote eco-friendly values, a new study reveals that the general public's environmental concerns remain low among Christians in the US. The research surveyed over 1,400 people and found that Christians reported lower levels of pro-environmental attitudes and behaviors...
A new online tool helps quantify subjective opinions on city environments, linking safety perceptions to violent crime rates. The study found correlations between perceived class and safety scores in US cities compared to Austrian counterparts.
The NIST nanoindenter uses a touchless surface detector to accurately measure the mechanical properties of thin films and biomaterials without contact. It applies forces up to 150 millinewtons and takes readings a thousand times a second with an uncertainty lower than 2 micronewtons.
Scientists at Ohio State University have identified two regions on the HER1/EGFR receptor as potential targets for peptide-based cancer vaccines and therapeutic agents. These peptides show promise in inhibiting tumor growth in breast and lung cancer models.
A large study of 23,000 people in Italy and Switzerland found a strong link between family history of cancer and increased risk of developing different types of cancer. The study revealed associations between specific cancers, such as oral and pharyngeal cancer, ovarian cancer, and prostate cancer, with a range of risk increases
Increased variability in yearly temperature records has shifted to regions of high population in Europe and North America. Globally, total temperature variability remains relatively stable despite global warming trends.
A new study published in Stem Cell Reports found no evidence of the existence of very small embryonic-like stem cells (VSELs), which could have been used for regenerative medicine. The researchers refuted claims of VSELs' potential, calling into question current plans for a clinical trial.
Researchers discovered that soil microbial biomass and fungal activity increased as the soil aged, with correlations between microbial respiration and soil nitrogen content indicating a community-wide influence on the environment. Yellow mountain avens, which support nitrogen fixation, took 40 years to impact soil microbial biomass.
Researchers from the University of Manchester have developed a new stem cell gene therapy to treat Sanfilippo, a fatal genetic brain disease. The treatment has shown promising results in mice, producing near-normal levels of SGSH enzyme and correcting progressive dementia and hyperactivity.
Researchers found that a speaker's ability to act on their words influences listeners' brain responses, with more impactful statements made by political figures. The study used brain scans to compare responses to implausible statements from high and low-status speakers.
Researchers found that common fungicides and insecticides can weaken the immune systems of honey bees, making them more susceptible to infection with a deadly parasite. The study's findings highlight the need for stricter regulations on pesticide use during crop pollination.
Scientists have discovered that a pressure-driven infection mechanism used by the herpes simplex virus 1 causes it to inject its genetic material into human cells. This technique could be targeted for future treatments to defeat HSV-1 and other viruses, potentially limiting drug resistance.
A new review highlights recent advances in the scientific understanding of bitter taste to improve drug acceptance and compliance in pediatric populations. The paper focuses on applying this knowledge to formulate pediatric medications that are more palatable for children.
Despite claims of their existence, Stanford researchers failed to identify pluripotent 'embryonic-like' cells in the bone marrow of adult mice. The study's findings contradict previous research and highlight the need for rigorous validation of scientific results.
Researchers discovered that ancient artists and craftsmen developed sophisticated thin-film coating techniques, including using mercury as a glue, to apply uniform films of gold and silver. These techniques have not been surpassed in quality since ancient times, making them invaluable for preserving priceless artifacts.
A recent study published in PLOS ONE reveals that experiencing weight discrimination increases the likelihood of becoming and staying obese. Researchers analyzed data from over 6000 participants, finding a significant correlation between perceived weight discrimination and obesity rates.
Researchers at UCSF recommend six measures to prevent hepatitis C, including clean syringe programs, social issue addressing, and injection cessation interventions. The study estimates 31,000 new cases per year among young injectors in the US.
Research by UNSW academics links human papillomavirus (HPV) to an increased risk of esophageal squamous cell carcinoma, a type of oesophageal cancer. HPV is one of several factors contributing to the development of OSCC, which is more prevalent in certain countries like China, South Africa, and Iran.
Astronomers using ALMA telescope discover billowing columns of cold gas fleeing nearby starburst galaxy NGC 253. The gas is likely being ejected due to intense pressure from young stars, potentially explaining the mystery of missing high-mass galaxies.
A new study published in the Journal of Dairy Science found that consumers who prefer dark chocolate in solid form can tolerate twice as much bitter ingredients in chocolate ice cream. Researchers developed a method to predict rejection thresholds for added bitterness based on individual preferences for milk or dark chocolate.
A new study found that pediatric cancer patients who have central lines at home develop nearly three times as many bloodstream infections as those treated in the hospital. The research highlights the need for better understanding and designing infection-prevention strategies for at-home central line care.
Researchers at the University of Arizona have identified a dozen new types of unknown viruses infecting different strains of marine bacteria. These bacteriophages play key roles in global processes such as oxygen and carbon cycling, climate patterns, and nutrient availability.
Dr. David Foster, an assistant professor of neuroscience at Johns Hopkins University School of Medicine, has been awarded the 2013 Freedman Prize Honorable Mention for his exceptional basic research on the neural basis of memory. His work combines advanced electrophysiological, computational, and behavioral approaches to investigate th...
Researchers have discovered that novel nanofiber scaffolds can enhance the proliferation of spinal cord-derived neural stem cells while inhibiting apoptosis. The study found that these scaffolds regulate gene expression, promoting cell growth without inducing differentiation.
Researchers warn of an 'economic time-bomb' in the Arctic due to thawing permafrost, which could trigger catastrophic climate change with a global cost of $60 trillion. The release of methane from the East Siberian Sea alone would have a mean global impact of this value.
A team from the University of Iowa has found that inhibiting the CaMKII enzyme could be an effective approach to treating allergic asthma. The study suggests that airway lining cells play a crucial role in asthma, and blocking the enzyme may help alleviate symptoms.
Loyola's Alcohol Research Program has received four NIH grants totaling over $3 million to investigate the effects of alcohol on organ systems. The program, led by Elizabeth J. Kovacs, PhD, aims to improve our understanding of how heavy drinking hinders recovery from burns or trauma and its impact on bone health.
A new skin-worn metabolite biosensor accurately measures lactate levels in sweat during exercise, offering promise for diverse sport and biomedical applications. Future research will correlate sweat lactate levels with fitness, performance, and blood lactate levels.
A study found that professionals overestimate applicants' abilities due to favorable circumstances, inflating qualifications and failing to account for school performance. This attribution error affects graduate school admissions and job evaluations.
A magnetic pen for smartphones, called the MagPen, can be used on both mobile devices and tablet computers with magnetometers embedded in them. The technology enhances expressiveness of stylus pens without requiring additional hardware.
A study published in the Proceedings of the National Academy of Sciences identifies a genetic mutation in Africans with HIV that increases their risk of tuberculosis. The research found that low expression of immune response gene MIF confers almost a two-and-a-half fold increased risk for severe TB.
Researchers at University of Bristol suggest combining antiviral treatment, opiate substitution therapy, and high-coverage needle and syringe programs to achieve substantial reductions in HCV prevalence among people who inject drugs. This approach can lead to a 45% reduction in HCV prevalence over ten years.
Tropical Depression 4 (TD4) formed on July 24 in the Eastern Atlantic Ocean, with maximum sustained winds near 35 mph. The storm is moving west-northwest at 20 mph and has a minimum central pressure of 1008 millibars.