Researchers discovered a compound that targets gut microbes to prevent heart disease by preventing the formation of toxic metabolic byproducts. This new approach may provide a whole new strategy for treating cardiovascular and metabolic diseases.
A person's first flu infection stimulates key antibody production, which later influences responses to other seasonal strains. Researchers found that early exposure, such as in childhood, can imprint the immune system and shape its response.
Researchers have discovered a direct link between autism symptoms and reduced action of the inhibitory neurotransmitter GABA. The study suggests that increasing brain concentrations of GABA may have potential as an autism treatment.
Researchers present genetic and morphological evidence that terrestrial green algae are the ancestors of modern land plants, contradicting long-held theories. The study's findings have significant implications for our understanding of plant evolution and adaptation to life on land.
Researchers identified molecular signatures that predict immune protection in response to flu vaccination, with elderly individuals showing high levels of monocytes and low antibody-producing B cells. This study provides insight into potential mechanisms underlying reduced vaccine efficacy in older adults.
The study reveals high genetic diversity of TB strains in Ethiopia, suggesting that Europeans introduced a new wave of virulent strains. The findings contradict the long-held 'virgin soil hypothesis' and shed light on past epidemics of TB.
Researchers designed synthetic microbes to learn what drives the bacterial circadian clock and how it might be manipulated. The findings indicate that the cyanobacteria's clock can synchronize to metabolism outside of photosynthesis, suggesting potential applications in engineered microbes.
Human astrocytes have unique genes and respond differently to neurotransmitters, particularly glutamate, suggesting improved detection of neuroactivity. The study's novel method allows researchers to compare astrocytes from healthy tissue and those affected by diseases such as glioblastoma and epilepsy.
Researchers used genome sequencing to trace Ebola's spread in Liberia, finding that most cases were linked to a single introduction of the virus in September 2014. The study suggests that widespread migration within Liberia contributed to the outbreak's magnitude and longevity.
Researchers found that physical activity enhances neuroplasticity in the visual cortex of adult humans, paving the way for non-invasive therapeutic strategies. The study suggests exercise plays a crucial role in brain health and recovery, particularly for individuals with conditions like amblyopia.
Researchers analyzed stool samples from 38 adults in the Cheyenne and Arapaho tribe, finding reduced abundance of certain bacteria and similar fecal metabolite profiles to those with metabolic disorders. The study suggests that lifestyle and social practices may play a role in health disparities among American Indians.
Researchers found that exposure to cold temperatures alters the composition of intestinal bacteria in mice, leading to increased brown and beige fat formation and improved glucose metabolism. Transplanting these microbes into germ-free mice also triggered weight loss and improved metabolic health.
A recent study published in Cell Metabolism found that a man's weight affects the heritable information contained in sperm. The study compared lean and obese men and found differences in epigenetic marks associated with appetite control. Further research is needed to understand the implications of these findings on offspring.
Researchers warn that Africa's planned 'development corridors' could have devastating environmental impacts, including habitat disruption and loss of biodiversity. The corridors, spanning 53,000 km, would crisscross the continent and prioritize agricultural production over environmental conservation.
A study on homing pigeons reveals that speed plays a crucial role in determining flock leadership. Faster birds lead and learn to navigate better routes, while slower birds follow and improve their skills over time. This simple yet effective mechanism explains the emergence of leadership in bird flocks.
Researchers mapped brain circuits that cause hyperactive dopamine release in response to cocaine. The study found a key relay between the extended amygdala and ventral subiculum drives persistent dopamine hyperactivity.
Researchers found that gut bacteria produce proteins that stimulate the release of satiety hormones and activate neurons that reduce appetite. This discovery suggests that gut microbiota play a role in controlling appetite and satiety.
Bioart uses genetic engineering, bacteria manipulation, and other scientific methods to create artistic works, sparking discussions about ethics and safety. The field has evolved from Fleming's 'germ paintings' to modern-day projects like genetically engineered silk worms and metagenomics analyses.
New methods using stem cells and reprogramming technologies aim to create biological pacemakers, potentially replacing electronic devices. Researchers are working on coaxing stem cells into cardiac pacemaker cells or directly converting supporting cells into pacemaker cells.
Researchers found that prenatal exposure to valproic acid inhibited new neuron birth and impaired learning, but running prevented these effects. The findings suggest that voluntary exercise could improve cognitive functioning in children of epileptic mothers.
A study found that combining bacterial protein Skp with small molecules can convert pluripotent cells into functional neurons. The research used Sox2 and Skp to initiate differentiation, followed by the use of neurodazine to direct lineage-specific commitment.
A new study published in Cell Press found that the glycemic index of foods varies significantly between individuals, contradicting traditional dietary recommendations. The research, led by Eran Segal and Eran Elinav, used a large cohort of participants to demonstrate the power of personalized nutrition in managing blood sugar levels an...
A study published in Cell Metabolism found that weight loss surgery curbs sweet tooth behavior by reducing dopamine release in the brain. The research suggests that positive outcomes are more likely if sugary foods seem less rewarding after surgery.
Researchers found that infants of blind parents paid less attention to adults' eye gaze compared to those with sighted parents. However, these infants developed advanced visual attention and memory skills, suggesting active learning from their blind caregivers.
A recent study reveals that over 50% of tropical plant specimens are likely to be incorrectly named, raising concerns about the reliability of biodiversity data. Researchers estimate it takes £500 to revise a species, suggesting a feasible solution to address this issue.
Researchers discovered that ancient bees used both generalist and specialist pollen-collecting strategies, finding pollen from diverse flowers on their bodies except for the hind legs. This finding challenges previous theories about the early history of bee pollination.
Neuroscientists can analyze social media broadcasts to measure emotional states, social conformity, and personality traits. Social media use also reveals differences in brain structure and function compared to offline environments.
A pre-clinical study reveals that treatment with first-line antibiotics can make MRSA skin infections worse by inducing a harmful inflammatory response. Newer tests are being developed to quickly diagnose and treat these infections, but caution is needed before extending the findings to humans.
A recent study published in Current Biology suggests that growing up in a non-religious household may increase altruism in children. The research found that children from non-religious families were significantly more likely to share with others, contrary to the commonly held notion that religion promotes generosity.
Researchers propose a working definition of curiosity as a drive state for information, which can be observed in organisms as simple as nematode worms. They also discuss the benefits and drawbacks of curiosity, including its role in learning and decision-making, and how it relates to attentional disorders.
Researchers found that grid cells integrate information about time and distance to support memory and spatial navigation, even without visual landmarks. The discovery suggests a broader role for the medial entorhinal cortex in coding locations, time, and distance.
A new theory suggests that mood can aid adaptation to environmental changes by reflecting recent changes in reward availability. This effect may help explain the causes of mood disorders and predispose individuals to conditions like bipolar disorder.
Researchers identify cognitive barriers that hinder pro-vaccination views, including the need for trust in medicine and government. They argue that transparency and efficient science communication can increase public trust in vaccination.
Researchers have discovered that electric eels can double the power of their electrical discharge by curling up their bodies, allowing them to handle larger and more struggling prey. This behavior enables the eels to induce involuntary fatigue in prey, rendering them temporarily immobilized.
Researchers identified GlycA, a molecular byproduct of inflammation, as a predictor of premature death due to infections. High GlycA levels indicate chronic inflammation, which damages the body and increases susceptibility to severe infections.
Researchers discovered evidence of plague infections in humans 4,800 years ago using DNA sequencing from ancient tooth samples. The Yersinia pestis lineage is believed to have acquired key virulence genes around 3,700-3,000 years ago, allowing it to spread via fleas.
Human embryonic stem-cell-derived cardiomyocytes surpass bone marrow-derived cells in repairing damaged heart tissue, suggesting a better option for future therapies. The study's findings also indicate that more mature and stable heart muscle cells may be more effective than progenitor cells in clinical studies.
Researchers have discovered that a Brazilian social bee must cultivate fungus to survive, highlighting the importance of symbiotic relationships in colony health. The fungus is grown in the nest and is transferred to newly built cells, with larvae surviving 76% of the time when fed fungal mycelia.
Researchers found that red mason bee females prefer males from their own region based on specific vibration patterns. This discovery suggests that vibrational signals carry complex information about a male's place of origin.
Researchers found that howler monkey species with larger hyoid bones produce sounds with lower frequencies, suggesting a larger body size. This is associated with smaller testes and vice versa, indicating a trade-off between vocal investment and sperm production.
A study published in Immunity suggests that dietary fat impacts the severity and duration of autoimmune flare-ups in mice. Short-chain fatty acids were found to alleviate symptoms by promoting regulatory T cells, while long-chain fatty acids exacerbated inflammation.
Researchers found that four-month-old infants can correctly identify the source of a tickle on their feet, but six-month-olds cannot. This suggests that human babies perceive touches solely on their bodies before developing a sense of touch in external space.
Brazilian scientists review advances in nanodentistry, exploring how nanoparticles can improve dental materials, prevent oral diseases, and create wearable toothpaste. However, safety and cost concerns hinder the adoption of these new technologies.
Researchers found that caffeinated nectar tricks honey bees into valuing it as a higher quality forage, leading to increased foraging and recruitment behaviors. The study suggests that plants may be using caffeine as a way to deceive pollinators.
Researchers found that three ancient groups of hunter-gatherers slept an average of 6.5 hours per night, similar to modern humans. Their sleep patterns were influenced by temperature, not light, and they lacked chronic insomnia compared to modern society.
Leading US neuroscientists advocate for a coordinated national network of neurotechnology centers to accelerate the BRAIN Initiative. The proposed brain observatories would unite and synergize hundreds of individual laboratories, enabling rapid progress in key areas like connectomics and neural nanoprobe systems.
A recent study found that diet-based and anti-inflammatory therapies alter different components of the microbial community without fully restoring the normal balance of gut bacteria and fungi in children with Crohn's disease. The treatment did not restore the normal balance of gut microbes, despite reducing inflammation.
The Blue Brain Project digitally reconstructs a slice of juvenile rat brain containing over 31,000 neurons and 55 layers, enabling researchers to simulate neural activity and circuit-level behaviors
Researchers have successfully generated aged neurons using stem cell technology, allowing for the study of age-related changes in the brain. The newly created neurons exhibit defects in protein transport and gene expression patterns similar to those found in older brains.
A team of researchers discovered that fishes' jaw protrusion ability is a relatively new trait, appearing only in the last 100 million years of their 400-million-year history. This finding suggests that the evolution of jaw protrusion played a crucial role in the success of spiny-rayed fishes.