Researchers have successfully transplanted human embryonic stem cell-derived retinal organoid sheets into monkeys with macular holes, resulting in graft survival and maturation of light-detecting cells. The study suggests that this method could become a practical treatment option for difficult macular hole cases.
Researchers discovered that bottlenose dolphins use the open mouth facial expression to signal playfulness and that they mirror each other's expressions 33% of the time. This finding suggests that visual communication plays a crucial role in shaping complex social interactions in marine mammals.
Researchers discovered that sea robins' legs are covered in sensory papillae with taste receptors, allowing them to detect and uncover food. The findings reveal an ancient gene controlling leg development and sensory organ formation, shedding light on the evolution of complex traits in wild organisms.
Scientists extracted DNA from ancient cheese samples found in Tarim Basin mummies, revealing a new origin for kefir cheese and shedding light on the evolution of probiotic bacteria. The study suggests that kefir culture has been maintained in Northwestern China since the Bronze Age.
A new international study provides a list of wildlife species present at the Huanan Seafood Wholesale market where SARS-CoV-2 likely arose. Genetic material from raccoon dogs, civet cats, and other species was found in samples from market stalls.
Researchers found an association between conservatism and larger amygdala size, as well as positive correlations with other brain regions such as the fusiform gyrus. However, no consistent association was found with the anterior cingulate cortex (ACC), a region involved in error detection and emotional regulation.
A recent review suggests that artificial intelligence can learn by thinking, similar to humans, through processes such as explanation, simulation, analogy, and reasoning. This finding has implications for understanding the similarities and differences between human and artificial cognition, and could lead to improvements in AI systems.
Researchers argue that placental pathology is underutilized clinically and deserves routine obstetric and neonatal care, as well as more research attention.
Researchers have developed a biotechnology system that converts CO2 into protein and vitamin B9 using renewable energy. The system uses microbes to produce these essential nutrients, with the potential to address global challenges such as environmental conservation, food security, and public health.
A fossilized Neanderthal, nicknamed 'Thorin', lived in a small isolated community for over 50,000 years before the species' extinction. The discovery reveals two distinct Neanderthal populations coexisted without exchanging genes, challenging previous assumptions about their population structure.
Researchers observed Japanese eels escaping from the stomach of a predatory fish using an X-ray video system. The eels back their way out, inserting tail tips through the esophagus and gills before pulling their heads free.
Researchers argue that studying group sleep can reveal insights into animal social structures and behaviors. By analyzing sleep patterns in groups, scientists can better understand the impact of sleep on individual and group fitness.
A new mpox mRNA vaccine has shown improved responses in nonhuman primate models, reducing symptoms and disease duration compared to a currently licensed modified vaccinia Ankara (MVA) vaccine. The investigational vaccine resulted in fewer lesions, shorter disease duration, and lower viral shedding.
Researchers have developed a comprehensive database of the 'food microbiome' by sequencing metagenomes from 2,533 foods, identifying 10,899 food-associated microbes. The study shows that these microbes can influence human health and provide insights into how to improve food quality, safety, and authenticity.
Obesity-related cancer rates in China have risen sharply among young people, with an alarming 3.6% annual increase between 2007 and 2021. The trend is particularly pronounced among those aged 25-29, highlighting the urgent need for better public health policies to address China's growing overweight and obesity rates.
Researchers created a virtual game environment and connected it to hydrogels, which improved their accuracy over time. The hydrogels used 'memory' to learn from previous patterns and improve their gameplay, with an improvement rate of up to 10%.
Researchers have successfully produced biodegradable plastics with ring-like structures, which could be used for biomedical applications such as drug delivery. The bacteria-based production method has the potential to replace petroleum-based plastics, offering a sustainable alternative.
Researchers found that an orb-weaving spider manipulates the flashing signals of male fireflies to mimic female signals, luring more males into its web. The study suggests that animals can use indirect signaling to target specific prey in nature.
Rewilding efforts in Europe could help countries meet conservation goals with 70% of opportunities in colder climates. Passive and active strategies are proposed to create self-sustaining ecosystems.
Researchers have developed an implantable device that can independently detect opioid overdose and automatically administer naloxone, with promising results in animal trials. The device, called iSOS, uses multiple sensors to continuously monitor vital signs and rapidly release naloxone when needed.
A recent study found that C-section antibiotics have a subtle impact on the infant gut microbiome, whereas diet has a significant impact. The study analyzed data from 172 infant samples and found that feeding mode explained 12% of variation in overall infant gut microbiome composition.
A study published in Cell Reports found that Western classical music elicits positive effects on the brain by synchronizing neural oscillations between the auditory cortex and rewards circuit. Patients with treatment-resistant depression who received high music appreciation showed better antidepressant effects, while those with low mus...
A recent study analyzed genomic diversity in 17 indigenous Peruvian groups, revealing significant genetic variations between Andeans and Amazonians. These differences can impact drug response and dosing, highlighting the need for inclusive genomics research to ensure equitable healthcare outcomes.
Researchers found that five out of six existing heat-wave indices were unable to capture the severity and spatial distribution of recent lethal heat waves in India, Spain, and the USA. The lethal heat-stress index was better able to identify dangerous heat-stress conditions, particularly in low-humidity regions.
Researchers found that reactivating therapeutically-altered memories during sleep leads to more brain activity related to memory processing, associated with a reduction in PTSD symptoms. Targeted memory reactivation (TMR) also reduced the inclination to avoid traumatic memories in patients.
Researchers found that word-specific brain activity peaks in speakers before speaking and corresponding spikes appear in listeners' brains after hearing the same words. The study suggests a shared model-based linguistic space for transmitting thoughts from brain to brain in natural conversations.
A clinical trial found that fecal microbiota transplants can boost the effectiveness of immunotherapy in a range of gastrointestinal cancers. The study identified specific bacterial strains associated with better or worse responses, and showed promise for improving treatment outcomes.
A study found that space-traveling muscles have impaired regeneration and gene activities associated with sarcopenia. Drug treatment partially prevented the negative effects of microgravity on muscles, suggesting a potential therapeutic approach for astronauts and older adults.
Researchers found that chimpanzees' gestures follow a rapid-fire pattern of turns, similar to human conversations, with short pauses between gestures at around 120 milliseconds. This suggests shared underlying rules in communication and may indicate that human language is not unique.
Researchers found that cuttlefish can create false memories by mentally reconstructing events from different features, but not scents. This suggests an efficient memory strategy where smaller building blocks are stored and reconstructed, reducing memory costs.
Scientists at King Abdullah University of Science and Technology developed a tiny 'claw machine' that can pick up and drop a marble-sized ball in response to exposure to chemical vapors. The material's properties can be precisely controlled, making it easy to customize.
Co-cultures refer to mutual cultural sharing between distinct animal species, influencing each other in substantial ways. These relationships have been observed between humans and nonhuman animals, as well as between different species of nonhuman animals, driving evolutionary adaptations and preferences.
A team has assembled the genome and 3D chromosomal structures of a 52,000-year-old woolly mammoth for the first time. The preserved chromosomes revealed the mammoth's genomic organization and active genes in its skin tissue.
Researchers found that facial temperatures are associated with chronic illnesses like diabetes and high blood pressure. They discovered specific regions of the face where temperatures correlate with age and health, including the nose, eyes, and cheeks.
Researchers developed engineered plasma B cells that produce large quantities of bispecific antibodies to target leukemia. These cells demonstrated sustained antitumor activity comparable to blinatumomab and may provide a long-term solution for cancer treatment.
A new study reveals that a type of desert moss called Syntrichia caninervis has the potential to grow on Mars due to its ability to tolerate extreme temperatures, radiation, and dehydration. The researchers tested the moss's resilience in various conditions and found it to be one of the most radiation-tolerant organisms known.
A recent study found that multiple Mycena mushroom species have unexpectedly large genomes, suggesting they can adapt to different lifestyles as circumstances change. This discovery has important implications for understanding an organism's habits from their genome sequences alone.
Researchers found that people are more likely to accuse others of lying when AI makes an accusation, highlighting the need for caution in implementing similar technologies. The study suggests that over-reliance on AI lie-detection tools may lead to careless accusations and reinforce biases.
Researchers suggest helping coral symbionts evolve heat tolerance in the lab to protect corals from summer heatwaves. This approach may be used in conjunction with other measures like assisted gene flow and reef management to maximize the likelihood of coral reefs persisting into the future.
A genomic analysis of last surviving woolly mammoths on Wrangel Island reveals signs of inbreeding and low genetic diversity, contradicting the idea that they were doomed to extinction. The research suggests that a random event likely led to their demise.
The Chang'e-6 lunar probe's surface samples are expected to consist of 2.5-million-year-old volcanic rock combined with small amounts of material generated by meteorite strikes. The samples may also contain evidence of distant impacts, providing crucial constraints on the early impact flux of the Moon.
Researchers find that restoring the Great Salt Lake would decrease dust exposure for all groups, particularly Pacific Islanders and Hispanic people, as well as reduce socioeconomic disparities. Average dust exposure during storms would drop from 32 μg/m³ to 24 μg/m³ with a healthy lake level.
Researchers discuss ways to mitigate wildfire risks, including community preparedness programs and high-tech options for early detection. The studies also explore the impact of ultrafine particles from wildfire smoke on cloud formation and heavy rain.
Bioethicist Insoo Hyun argues that advances in organoids and embryonic models strengthen rather than weaken the concept of human individuality. Current technologies are unable to replicate sentience, a crucial aspect of personhood, until major innovations are made.
Josh Smalley, a chemical biology researcher and Great British Bake Off finalist, explores the overlap between chemistry and baking. He credits his lab training for handling pressure in the tent and finding creative solutions to baking issues.
A new study analyzing seven million parliamentary speeches reveals that high temperatures lead to a significant reduction in politicians' language complexity. The researchers found that the impact of heat on cognitive abilities has real and immediate consequences for politicians.
Scientists developed an AI-powered system to track tiny devices that monitor markers of disease in the gut. The system includes a wearable coil and ingestible pill with optical gas-sensing membranes, pinpointing device location and measuring gases like ammonia. Future improvements aim to make the device smaller and more power-efficient.
Researchers found that many bacterial strains present in infants at 3 weeks, months, and 12 months originated from the father, not the mother. This discovery highlights the importance of physical and social interactions between newborns and their fathers, as well as with other family members.
Researchers suggest charging carbon emitters with an emission tax could help fund basic income programs while reducing environmental degradation. Implementing basic income could boost global GDP by 130% and generate $7 in economic impacts for every dollar spent.
Researchers used virtual reality to test whether humans can feel embodiment toward prosthetic