A new study found that California school nutrition policies had varying impacts on childhood obesity among children of different ethnicities. The prevalence of overweight/obesity was higher among PI, FI, and AIAN children compared to White students. After implementing the policies, the overweight/obesity rates decreased for almost all ...
Researchers have found that Rubisco proton production can enhance CO2 acquisition, allowing plants to fix more carbon dioxide and produce more sugar. This discovery could lead to improved crop yields and increased food security.
Researchers found a correlation between heat stress, sun-induced fluorescence, and grain quality, affecting soybean crop yield. The technique may help identify more heat-resistant crops and aid farmers in selecting suitable crops for the U.S. Corn Belt.
Genetic resequencing reveals Sudanese Kordofan melon as closest relative to domesticated watermelon, potentially a precursor. Pulp bitterness and sweetness likely altered over time through artificial selection.
A study by Florida Atlantic University reveals that increased nitrogen availability is transforming Sargassum into a toxic 'dead zone' with catastrophic impacts on coastal ecosystems and human health. The research, published in Nature Communications, suggests that global nutrient pollution is driving harmful algal blooms.
Scientists discover a way to reactivate paralyzed immune cells against IDH-mutant gliomas, leading to improved vaccine effectiveness. The researchers identified the molecular mechanism behind the 'immune paralysis' caused by cancer-promoting metabolic products and found a substance that deactivates a key immune system regulatory molecule.
Researchers at Newcastle University have discovered new nutrient exchanges between algae and bacteria using advanced SIMS technique. The study shows that long-term carbon transfers occur between microalgae and bacteria, impacting microbial community functioning.
Researchers discovered a sub-set of CAR T-cells called 'stem cell memory T-cells' that play a key role in destroying cancer and maintaining immune surveillance. These cells are critical to the long-term success of CAR T-cell therapy, which could improve treatment outcomes for patients with high-risk relapse.
A randomized clinical trial examined the association between tocilizumab treatment and C-reactive protein levels in patients hospitalized with COVID-19. The study found a positive correlation between tocilizumab treatment and improved survival rates for patients with high C-reactive protein levels.
The vaccine has the potential to improve seasonal flu vaccine effectiveness, produce vaccines faster and use smaller doses. It achieved a strong immune response in mice, providing protection against two different strains of influenza.
Scientists have successfully synthesized the first conjoined bismacrocycle with all phenylene units, a complex material that has potential in photoelectric and supramolecular applications. The molecule's unique structure allows it to form a peanut-shaped host-guest complex with fullerene derivatives.
A low-calorie ketogenic diet has been found to increase total testosterone and sex hormone (SHBG) levels in overweight men. After four weeks on the diet, body weight, fat mass, and BMI decreased significantly, while testosterone and SHBG levels substantially increased.
A new study from King's College London found that users of the Reddit forum 'SuicideWatch' post at their highest between 02:00 and 05:00 on Mondays, a trend that closely follows earlier studies on suicide timing patterns. The researchers believe this data can be used to target at-risk populations with greater levels of support.
Researchers used CRISPR/Cas9 to create sterile male mosquitoes that suppress female fertility in Ae. aegypti. This reduction in female fertility can help combat disease spread by increasing the presence of sterile males in wild populations.
Researchers have developed new peptide markers to identify African bovid species, enabling more accurate analysis of ancient animal remains. The discovery sheds light on subsistence strategies and paleoenvironments in Iron Age Zambia.
A study published in Nature Aging suggests that low oxygen levels in senile plaques reduce immune system's defensive capacity against Alzheimer's disease. Reduced oxygen supply also compromises microglial activity, leading to increased pathology associated with the disease.
The study found a 49% decrease in breast cancer screening mammograms completed across Washington state, with significantly larger decreases for non-white women. Rural women saw a 59% reduction in mammograms, while urban women experienced a 50% drop.
Scientists have identified a unique subset of inhibitory cells in the amygdala known as apITC, which modulates plasticity in fear learning. The apITC connects to various regions, including thalamic processing centers and sensory areas, to regulate fear-related responses.
An international team used Raman microspectroscopy and imaging to identify signatures in the elastic and collagen fibers of the aorta that indicate the presence of an aneurysm. The study found biomarkers for thoracic aortic aneurysms, which could enable early detection and potentially save lives.
Researchers discovered that clownfish develop white stripes faster in giant carpet anemone hosts due to higher levels of thyroid hormones and increased duox gene activity. Thyroid hormone levels correlate with duox expression, leading to faster bar formation in giant carpet anemone clownfish.
A team of scientists discovered that three dozen dwarf galaxies simultaneously accelerated their star birth rates, defying expectations. The galaxies, separated by up to 13 million light-years, had a synchronized decrease in stellar birth rate 6 billion years ago and an increase 3 billion years ago.
High-elevation fires in the western US have advanced upslope by 252 meters since 1984, fueled by climate change and increased lightning strikes. This expansion threatens previously wet areas and exacerbates fire risks in dry regions.
Clownfish develop white stripes during metamorphosis, with varying rates of formation depending on the sea anemone host. Thyroid hormone influences white bar development, with higher concentrations leading to more bars and earlier development.
A new study published in the Journal of the American College of Cardiology found that a diet proven to lower elevated blood pressure, known as the DASH diet, reduces inflammation and heart injury. The findings also showed that a low-sodium diet can improve cardiovascular risk factors in a relatively short time period.
New research suggests that anti-cancer therapies can hasten cellular aging, leading to increased inflammation and fatigue in patients with head and neck cancer. Epigenetic changes associated with these treatments may contribute to age-related conditions.
Scientists have discovered the potential progenitor of the domestic watermelon, the Kordofan melon, which has more disease-resistant genes. The study could help breed more disease-resistant watermelons in the future.
The conference focused on resilience, relocation, and climate justice in areas affected by climate change. Key findings highlighted the importance of environmental justice in managed retreat strategies.
Researchers from Brigham and Women's Hospital analyzed data from nearly 144,000 women and found a 40% higher risk of moderate or worse hearing loss in those with osteoporosis or low bone density. Bisphosphonates did not alter this risk, suggesting that other factors may contribute to the development of age-related hearing loss.
Research found that human management of the Amazon rainforest peaked around 1200 AD, leading to a decline in some societies before European settlers arrived. Climate change is believed to be a contributing factor to this population drop-off.
A study of healthcare workers found they were three times more likely to become infected during the COVID-19 pandemic compared to the general population. However, health care workers who had been infected were very unlikely to contract COVID-19 a second time in six months.
A new study using data from the Black Women's Health Study found no association between moderate or heavy use of hair relaxers and breast cancer risk in black women. However, heavy users of lye-containing products were found to have a 30% increased risk of estrogen receptor-positive breast cancer.
A new design method for optimizing fiber orientation and thickness simultaneously reduces the weight of carbon fiber reinforced plastics by more than 5% while maintaining its strength. The approach, developed by researchers at Tokyo University of Science, enables higher load transfer efficiency compared to traditional methods.
A community health worker intervention has been shown to reduce hospital readmissions among patients discharged to short-term rehabilitation. The study, published in JAMA Network Open, found a 32.3% reduction in readmissions for this population compared to those discharged home.
Researchers discovered high concentrations of mercury in Greenland glacial meltwaters, exceeding typical river levels by up to 1500 times. This finding raises questions about the impact of glacial melting on aquatic ecosystems and food chains.
Researchers successfully captured a video image of the bottom-up synthesis of fullerene C60, an allotrope resembling a soccer ball. The process was observed using single-molecule atomic resolution real-time electron microscopy (SMART-EM), revealing a kinetically and thermodynamically controlled cyclodehydrogenation reaction.
A new multicenter study found that continuing antiseizure medication after neonatal seizures stopped did not prevent epilepsy or developmental delays in babies. This contradicts standard practice of extending treatment for months, and highlights the need to reassess standard care for newborns with seizures.
The discovery of UGC 10738 reveals that galaxies with similar structures and properties are likely common. The galaxy's thick disc consists mainly of ancient stars, while its thin disc stars are more recent and contain more metal.
Researchers evaluate expression of TAZ and YAP, the p53-MDM2 axis, and RABL6A in sarcomas, finding that elevated YAP and TAZ independently predict worse overall and progression-free survival. Network analysis reveals a possible functional relationship between biomarkers.
Researchers have developed a pioneering plant-based technology to study the virus maturation process, revealing large structural rearrangements that enable chemical reactions necessary for infection. The study provides valuable insights into the dynamics of an essential part of a virus infection cycle.
Researchers have successfully catalogued the effect of individual genes on human neuron function and survival, revealing unexpected results. The team's findings suggest that switching off certain genes can lead to an increase in oxidative stress, which may contribute to neurodegenerative diseases.
A study of 1,095 patients with COVID-19 found abnormal blood-oxygen levels and breathing rates are strong predictors of poor patient outcomes. Researchers recommend monitoring for these signs at home or seeking medical attention earlier to potentially save lives.
Researchers at the University of York developed a gel that adheres to nasal tissue, delivering levodopa directly to the brain. This innovation improves drug effectiveness and reduces dosage needs, potentially benefiting patients with Parkinson's disease.
The study reveals that the 2019-20 drought was caused by a meteorological phenomenon, atmospheric blocking, which prevented raincloud formation. The Pantanal's severe drought had devastating effects on the biome due to high temperatures, low humidity, and exacerbated by human activities like deliberate burning of vegetation.
Researchers found socioeconomic and racial inequities in breast cancer screenings before and during the pandemic. The study analyzed data from a large statewide nonprofit community health care system, revealing significant disparities among sociodemographic groups.
Between 2017 and 2019, US poison centers saw a significant increase in reported cannabis-related exposures to both manufactured products and plant materials, indicating a growing need for awareness and regulation.
A study by Georgia State University's Taylor Shelton found that vacant gameday homes drive up housing prices, displacing permanent residents in small college towns. The study analyzed data from over a dozen college towns and suggests changes to zoning and tax laws could ease the impacts.
Researchers at Keck School of Medicine of USC have identified GRP78 as a molecular chaperone that plays a crucial role in the spread of SARS-CoV-2, offering a potential new therapy to combat COVID-19. Targeting GRP78 with therapies could provide additional protection against COVID-19 and its variants.
A study published in Academic Emergency Medicine found that prescribed light exercise had no effect on recovery or healthcare utilization outcomes for patients with acute mild traumatic brain injury. Standard care without early exercise may be a viable option.
A new study by University of Liverpool ecologists finds that climate change will see some species succumb to infertility earlier than thought. The research used fruit fly species to predict temperature tolerance and found that almost half of the species become sterile at lower temperatures, making conservation more difficult.
A new study in PNAS reveals that domesticated watermelons come from wild crop progenitors in northeast Africa. The research uses DNA from hundreds of watermelon varieties to confirm the correct origin, correcting a long-held misconception about their South African roots.
A University of Queensland study has found that reduced levels of metabolic hormone leptin are associated with poor vaccine antibody responses in both young and older individuals. The research could lead to the development of new strategies for improving vaccine protection in vulnerable populations.
Researchers found that storytelling significantly increased oxytocin levels and decreased cortisol and pain levels in hospitalized children. The study showed a positive effect on emotional well-being and found higher positive emotions following the storytelling intervention compared to the riddle game.
Scientists have discovered a novel deafness gene, TMEM43, linked to auditory neuropathy spectrum disorder (ANSD), a rare form of hearing loss that affects speech comprehension. The treatment involves cochlear implants, which have successfully restored speech discrimination in patients, offering new hope for those affected.
A recent study found that COVID-19 infection rates among US dentists are significantly lower than those of other healthcare professionals, with a cumulative infection rate of 2.6%. The monthly incidence rate varied between 0.2% and 1.1%, indicating effective infection control measures.
A simple diagnostic tool has been developed to predict the individual risk of developing Alzheimer's disease with over 90% accuracy. The algorithm combines data from a simple blood test and brief memory tests, and has been shown to be significantly more accurate than clinical predictions by dementia experts.
Ben Ouagrham-Gormley is researching ethical issues related to human germline genome editing, a key aspect of China's global scientific strategy. The researcher will analyze data and conduct interviews with Chinese and U.S. scientists and government officials.
Researchers propose five interventions to promote equitable ecology practices, including amplifying diverse expertise, addressing data sovereignty issues, and deconstructing biases in research teams. These actions aim to connect with existing anti-colonial and anti-racist struggles and promote ecological justice.
A study in Wisconsin found that wolf introduction reduced deer-vehicle collisions by 24%, with an economic benefit of 63 times the harm caused by livestock predation. The study suggests that wolves' impact on prey behavior is a key factor in collision reduction.
Scientists have discovered a semimetal, CeRu4Sn6, that is naturally at the quantum critical point without external influences. This finding has significant implications for developing powerful new quantum technologies and discovering new phases of matter.
Researchers developed a novel software tool to quantify potential CRISPR-induced errors, including adverse translocation events that can cause cancer. The tool, CRISPECTOR, analyzes next-generation sequencing data and applies statistical modeling to determine editing activity.