A human genetic study suggests that Madagascar's loss of large vertebrates is linked to the first major human expansion on the island around 1,000 years ago. The study found that a small group of Bantu-speaking African people arrived on the island and led to the rapid growth of the human population.
Research reveals that high CO2 levels can lead to mineral deficiencies in plants, resulting in less nutritious crops. This affects protein content, particularly in staple crops like rice and wheat, with potential implications for global food security.
A high-fat diet in pregnant monkeys alters the transcriptional landscape of fetal blood stem cells, leading to a hyperinflammatory response and suppressed B-cell development. The study's findings suggest that maternal obesity may influence fetal bone marrow and immune system development.
Researchers found that permanent daylight savings time reduces deer-vehicle collisions by 16 percent, resulting in fewer animal deaths and human injuries. The study predicts that year-round DST could prevent up to 36,550 deer deaths annually.
Researchers mapped the detailed neural pathway of defensive responses from the gut to the brain in mice after detecting germs. The study could lead to better anti-nausea medications for cancer patients undergoing chemotherapy.
Research reveals that common gut bacteria enhance cocaine effects in mice by consuming glycine, leading to behavior abnormalities. Supplementing glycine or using a genetically modified bacteria reduces response to cocaine, demonstrating its role as an addiction mediator.
Researchers have successfully isolated parathyroid stem cells and maintained them in lab as organoids for an extended period. These patient-derived parathyroid organoids (PTOs) closely mimic human parathyroid tissue, enabling the study of parathyroid diseases and drug development.
Researchers found that playing a sound associated with a positive daytime experience during sleep can reduce nightmare frequency and increase emotional positivity in dreams. The study's findings support the development of new therapies for treating nightmares, which affect up to 4% of adults.
Researchers found that protected Indigenous lands have higher forest integrity than non-protected areas in all regions analyzed, including the Americas and Africa. However, within Indigenous lands without overlap with protected areas, forest health was actually worse off than non-protected areas.
Researchers have discovered that insects can produce as much atmospheric electric charge as a thunderstorm cloud. Insect swarms alter the electric field force at ground level, affecting local weather patterns. The study, published in iScience, highlights the link between biology and physics.
Marine protected areas significantly increase carbon sequestration in seagrass and mangrove ecosystems. Biodiversity and species richness also rise in preserved waters, contributing to food security and human well-being. Full protection is necessary for maximum benefits.
Research finds LA mountain lions are avoiding burned areas but crossing roads and traveling longer distances to find resources. The population is increasingly at risk due to habitat loss and human-wildlife conflict.
Ancient tree conservation is crucial for maintaining ecosystem integrity and mitigating climate change. The researchers propose a two-pronged approach to protect these trees, including germplasm conservation and forest rewilding.
Individuals with Down syndrome experience less frequent but more severe viral infections, attributed to increased type I interferon expression. This leads to hyperactive immune responses initially, followed by overcorrection, resulting in increased vulnerability late in the viral attack.
Researchers study links between cyclones and forest fires, finding that cyclones can create conditions ripe for fires by damaging trees and altering microclimates. As climate change increases cyclone intensity, the risk of wildfires in previously fire-resistant ecosystems like rainforests grows.
Researchers successfully taught human and mouse neurons to play the video game Pong in real-time, showcasing their ability to exhibit sentience and adapt to a changing environment. The study's findings have potential applications in disease modeling, drug discoveries, and expanding our understanding of brain function.
The Global Biobank Meta-analysis Initiative has made significant advancements in expanding genome-wide association studies (GWASs) to include more diverse and representative data from around the world. By analyzing genomic data from over 2 million individuals across four continents, researchers have identified new genetic variants asso...
Scientists at Tianjin University have discovered a way to make silkworm silk 70% stronger than spider silk by removing its sticky outer layer and manually spinning it. This breakthrough could lead to the production of profitable high-performance artificial silks, revolutionizing industries such as biomedicine and tissue regeneration.
A randomized controlled trial found that combining time-restricted eating (TRE) and high-intensity interval training (HIIT) improved long-term glycemic control and reduced fat mass in women with overweight/obesity. The study also showed increased cardiorespiratory fitness.
A randomized clinical trial found that time-restricted eating (TRE) is safe and feasible for 24-hour shift workers, improving glucose levels and blood pressure in those with cardiometabolic risk factors. Participants who followed a TRE pattern experienced improved quality of life and reduced bad cholesterol.
A mouse study found that female brains express higher levels of an X-linked enzyme called USP11, leading to greater accumulation of tau protein and increased vulnerability to Alzheimer's disease. The results suggest that excessive activity of USP11 drives this increased susceptibility in females.
Excess ground-level ozone damages plant foliage, alters flowering patterns, and blocks pollinators' access to flowers. Ozone also disrupts plant-pollinator communication through altered chemical signatures.
Researchers from the autistic community offer guidelines for using respectful language in autism research, prioritizing the perspectives of autistic individuals. They advocate for a shift towards participatory and co-produced research to reduce power imbalance and ensure autistic involvement.
A recent study found that cancer biomarker data is biased towards European populations, potentially misclassifying patients of Asian or African descent. The researchers propose a computational approach to correct this bias, which could have significant implications for treatment selection.
A study published in Cell Press found that when humans are involved, computer decisions are perceived as fairer. Participants deemed decisions related to positive outcomes fairer than negative ones and had concerns over fairness in systems with higher stakes. The results suggest that automated decision-making systems need careful desig...
Researchers analyzed data from Australia's Reef Life Survey and two major reef monitoring programs to understand the effects of warming waters on reef fish populations. The study found that temperature changes had a greater impact on temperate reefs, while tropical reefs were more affected by habitat changes such as coral bleaching.
Scientists have developed a face mask that can detect common respiratory viruses in the air, alerting wearers via mobile devices within 10 minutes. The mask uses aptamers to identify unique proteins on viral surface proteins, amplifying signals to detect even trace levels of pathogens.
Researchers found that unique coloration makes songbirds more sought after as pets, threatening their populations and the aesthetic value of nature. The study identifies nearly 500 bird species at risk due to their colors, emphasizing the need for sustainable trade regulations.
The Rising Black Scientists Awards has expanded its scope to include the physical, earth and environmental sciences, with key support from the Elsevier Foundation. Winners will receive $10,000 to support their research and a $500 travel grant.
Researchers discovered that carrying and walking with crying infants for five minutes significantly reduces their distress and promotes sleep. The study suggests a new approach to soothing infant crying, which may improve long-term sleep outcomes.
Scientists argue that shallow-water mining is not a sustainable alternative to deep-water mining due to the removal of habitat and biodiversity loss. The authors caution that the extraction of valuable materials requires rigorous environmental evaluation before it can be declared safe and sustainable.
In southern Sydney, cockatoos have developed a unique behavior of opening garbage bins to eat food waste. Humans have responded by using various inventive methods to secure the bins, sparking an 'arms race' between the two species.
A new study published in Cell Metabolism found that eating a larger meal in the morning does not impact energy metabolism but may help with appetite control and satiety. Healthy subjects who followed a morning-loaded diet reported feeling less hungry later in the day.
Researchers found that bird neurons consume three times less glucose than mammalian neurons, allowing for high cognitive abilities and complex brain structures. This discovery sheds light on the evolutionary advantages of birds' brains.
Scientists create zinc battery with chitosan-based biodegradable electrolyte, reducing environmental burden. The new battery stores power from large-scale wind and solar sources, uses abundant zinc, and can be broken down by microbes, making it a viable option for sustainable energy storage.
Researchers identified a group of Ashkenazi Jews who fell victim to antisemitic violence during the 12th century, shedding new light on Jewish medical history in Europe. The study suggests that a bottleneck event shaped the modern-day Ashkenazi Jewish population prior to the 12th century, earlier than previously believed.
A study found that genetically unrelated individuals with extreme facial similarities share common genetic variants, but differ in epigenetic and microbiome landscapes. The results suggest a molecular basis for human resemblance, with potential implications in forensics and biomedicine.
A study published in Current Biology found that dogs shed tears associated with positive emotions, such as reuniting with their owners, suggesting a stronger bond between humans and dogs. Oxytocin may play a role in this emotional response, with researchers also noting that people tend to respond more positively to teary-eyed dog faces.
Researchers explored the global spread of misinformation on spiders, finding that sensationalism and misinformation decrease when experts are consulted. Local events can quickly become international news, emphasizing the need for improved information quality at local nodes to reverberate globally.
Researchers found that non-nutritive sweeteners can change the composition and function of gut microbes in humans, leading to altered glucose tolerance. The study suggests a personalized effect on glycemic responses due to individual variations in microbiome composition.
Wheat yields are projected to alter unevenly due to climate change, leading to price spikes in Global South and exacerbating existing inequalities. Global warming could deepen trade positions, causing more frequent and steep wheat price spikes in low-latitude regions.
Researchers found that mosquitoes have co-expressed receptors in their neurons, allowing them to detect multiple types of human odors. This redundancy makes it difficult to eliminate mosquito attraction to humans using repellents or other methods.
A study published in Patterns shows that five digital medicine companies share browsing data related to health topics with Facebook for lead generation and advertising purposes. The researchers found that two companies targeted ads consistent with their own privacy policies, while the other three did not comply with their policies.
A study found that prolonged mental labor leads to glutamate accumulation in the prefrontal cortex, causing cognitive fatigue and altering control over decisions. Researchers suggest taking rest and sleep as a solution to overcome this limitation.
Researchers found that sponges release mucus to unclog their internal filter systems, which also serves as a food source for fish. The study published in Current Biology highlights the unique adaptation of sponges to manage their waste and environment.
A new study published in Current Biology found that humans' ability to interpret babies' cries isn't innate but learned from experience. Parents of young babies are able to identify a baby's pain cries even if they have never heard this baby before, whereas inexperienced individuals are typically unable to do so.
Researchers generated rat sperm cells inside sterile mice using blastocyst complementation, achieving a proof-of-principle for producing gametes from one animal species in another. This breakthrough may speed up the production of transgenic rats for biomedical research and potentially support animal species conservation efforts.
Researchers have designed a phage combination therapy that precisely targets and suppresses gut bacteria associated with inflammatory bowel diseases (IBD). The team identified effective phages against IBD-contributing Kp strains, which attenuated inflammation and tissue damage in mice models.
Researchers successfully engineered E. coli collected from human and mice gut microbiomes, showing potential to treat diseases such as diabetes. The engineered bacteria retain their activity for the entire lifetime of the host and positively influence diabetes progression in mice.
Researchers have centralized over 300 key figures in the Human Impacts Database, providing information on global plastic production, standing livestock population, and sea level rise. The database aims to promote collective quantitative literacy of the Anthropocene.