Researchers have created a detailed map of childhood Crohn's disease before and after treatment, identifying specific cell signatures that predict disease severity and treatment outcomes. The study suggests that anti-TNF therapy may push the pediatric cell ecosystem towards more resistant disease.
Researchers developed a novel imaging approach called SANDI to study microstructural brain abnormalities associated with Huntington's disease. The model revealed differences in cell density and size, correlating with disease progression and motor performance.
Researchers have developed a new tool to screen genes involved in human development at unprecedented scale and speed. The method, using organoids from human pluripotent stem cells, revealed new insights into human brain development, including the role of ZIC2, SOX11, and ZNF521 genes.
Researchers found that babies' brains can process music from as young as three months of age, but spontaneous movements to music emerge later in the first year. Infants show enhanced auditory responses to 'music' compared to 'shuffled music', with significant movement increases seen at 12 months.
The study reveals that the genetic diversity of Faroese people contributes to their health, with a greater proportion of long runs of homozygosity suggesting a recent evolutionary bottleneck. Additionally, certain genes such as POLQ and SLC10A1 show increased genetic diversity in the population, potentially linked to diet changes.
Wild female chickadees prefer males with strong spatial cognition to increase the likelihood of successful reproduction and good parental care. Males with better spatial learning and memory abilities sired more extra-pair young and raised heavier chicks, which are more likely to survive.
A recent study found that homing pigeons use simple route averaging to improve their navigation when flying together. This strategy allows the birds to generate social routes from solitary ones, providing evidence for a simpler mechanism of social learning than previously thought.
Researchers found that crabs' iconic sideways walk originated from a single, forward-walking ancestor around 200 million years ago. This rare innovation likely contributed to the ecological success of true crabs by making their escape direction unpredictable.
A study published in eLife found that adolescents focus more on their own interests compared to adults when navigating social dilemmas. The researchers recruited 261 participants, aged 14-17 and 18-30 years, to play a repeated cooperation game called the Prisoner's Dilemma Game.
Researchers found that larger amygdala volumes are associated with higher social tolerance in macaque monkeys, suggesting a multifunctional role of the amygdala in processing complex social information. Hippocampus volume was not significantly linked to social tolerance.
A study suggests that moths integrate geomagnetic and visual cues to orient themselves during seasonal migration. The research found that visual cues are indispensable for accurate migratory orientation in the fall armyworm species.
Researchers analyzed downward climbing behaviors in 21 small-to-medium-sized arboreal mammal species to understand early primate evolution. They found primates used tail-first and side postures more often than non-primates, suggesting upright postures evolved to adapt to tree environments.
A research team has developed a way to produce corticospinal-like neurons that centrally degenerate in motor neuron disease and are damaged in spinal cord injury. The study uses a multi-component gene-expression system called NVOF to precisely fine tune regulatory signals, resulting in mature neurons with distinct characteristics.
Researchers have identified a metabolically sensitive cell subtype in the eye's drainage system that shows early signs of dysfunction in a genetic mouse model of glaucoma. The study provides what the editors say are fundamental findings highlighting a potential therapeutic strategy for preventing or slowing the development of glaucoma.
A study published in eLife reveals how kangaroos increase their hopping speeds without incurring an associated energetic cost. By adjusting their posture, kangaroos reduce tendon stress and energy storage, allowing them to maintain the same amount of net work at the ankle, regardless of speed.
Researchers reveal that harm causes stronger guilt, while sense of responsibility triggers shame, influencing compensatory behaviors. The study also identifies distinct neural activity for guilt and shame-driven decisions, shedding light on the cognitive processes guiding these emotions.
A biologically inspired computer model combines spatially and temporally congruent audiovisual information like humans do, overcoming previous limitations. The model reproduces results from 69 classic experiments across species and outperforms dominant models.
Researchers discovered how newly created neurons rely on blood flow to migrate through the brain. The study found that blood vessels act as physical 'scaffolds' and that blood flow influences migration speed, with higher speeds seen in regions with abundant blood flow.
The study found that genes involved in facial development are largely conserved across species but their regulatory elements vary significantly. Marsupials have unique dunnart-specific regulatory elements near highly-expressed genes related to skin, muscle, and sensory system development.
Imperial College London and the University of Sheffield have signed up to eLife's uncapped scheme, promoting greater equity and inclusivity in scientific publishing. The partnerships aim to support researchers in publishing through eLife Model, providing a fairer and more transparent approach to research publishing and assessment.
Researchers found that smaller insect wing design, rather than flapping speed, enables them to generate lift and fly. The study showed proportionally longer wings and more force-efficient shape help the smallest species stay airborne.
A new study reveals that brain lateralization is essential for the emergence of left-to-right spatial-numerical associations in newborn chicks. Strongly lateralized chicks showed a clear preference for selecting food from the left, while weakly lateralized chicks had no consistent directional preference.
Researchers discovered a large set of previously unrecognized enzymatic domains, the Lipocone superfamily, with a shared lipid-modifying mechanism. This superfamily is linked to Wnt, playing a role in cell communication during human development and associated with various diseases.
Researchers have created a more efficient and controlled method to produce lab-grown inner ear hair cells, offering new hope for hearing loss research. The innovative approach uses a doxycycline-inducible transcription factor system, significantly increasing efficiency and reducing time compared to existing methods.
Wild chimpanzees show reduced participation and performance in tool-use behaviours as they age, with individual differences in impact observed. The study provides evidence that old age leads to a gradual withdrawal from tool use, affecting efficiency and daily tasks.
Researchers compared prey-capture behaviors in five fish species, revealing distinct strategies that differ from zebrafish. These differences suggest species-specific sensory inputs and motor control, shedding light on how brain circuits support behavior and evolution shapes those circuits.
A study found that exposure to β-glucan reprograms immune cells in the lungs, causing them to overreact and worsen lung damage. The research suggests that trained immunity in the lungs may have negative consequences in certain contexts.
Researchers identified a key brain region, the ventrolateral periaqueductal gray matter (vIPAG), that modulates pain and emotional responses in threatening situations. By inhibiting specific cells within this region, scientists discovered a potential pathway for better pain relief.
A high-throughput neutralisation assay reveals how individual immunity gaps shape flu strain success, highlighting personalised immunity and its impact on virus evolution. The study used large-scale sequencing to quantify antibody responses against circulating H3N2 flu strains in children and adults.
Researchers have revealed the structural mechanisms of a major DNA repair pathway in human cells, showing how RAD51 filament promotes strand exchange and facilitates DNA repair. The study provides fundamental insights into biochemical reactions of eukaryotic homologous recombination.
A new study shows that lowering EMC10 levels restores brain function and memory in models of 22q11.2 Deletion Syndrome. Reducing EMC10 activity also alleviates symptoms, including improved cognitive deficits and social memory performance.
Researchers have created a library of genetically engineered fruit flies linked to individual neurons in the nerve cord to characterize the circuits controlling wing motion. The study provides a resource for studying motor control of wing movements and courtship behaviors.
Researchers have developed three-dimensional spheroid cultures that better replicate cell-cell interactions and nutrient gradients, leading to a greater understanding of tumour tissue behaviour and drug responses. The study highlights the importance of mimicking tumour architecture in testing cancer therapies.
Research found that negative expectations have a stronger and longer-lasting impact on pain perception than positive ones. The study showed that nocebo effects, where participants expect a negative outcome, were more powerful and persistent than placebo effects, with implications for patient-practitioner communication.
Researchers found that full-genome differences between rotavirus strains influence vaccine effectiveness, highlighting the need for a broader approach to vaccine design. The study's results suggest that vaccines should be designed based on the whole genome of circulating strains, rather than just two surface proteins.
A new study reveals that the presence of Nora virus in laboratory strains of Drosophila fruit flies can increase their sensitivity to bacterial infection and limit their lifespan. Flies with persistent viral infections have higher stem cell growth rates, making them more susceptible to secondary pathogenic infections.
Researchers have characterised how dying cells contribute to the body's regeneration process, suggesting a new mechanism for tissue repair. The study found that cells released from necrosis play a role in signaling the production of other cells involved in controlling natural cell death and inflammation.
A new study reveals how hunger influences dietary decisions by prioritizing tastiness over healthiness, leading to poorer nutritional choices. Researchers used eye-tracking technology and computational modeling to demonstrate that hungry individuals focus more on the visual appeal of food options and ignore nutritional information.
Researchers developed a freely available analysis tool, DANCE, for automating the quantification of male aggression and courtship behaviors in fruit flies. The tool uses machine learning and has been shown to be as accurate as expert manual scoring with costs less than $0.30 per experiment.
Researchers have mapped the long-range synaptic connections involved in vocal learning in zebra finches, uncovering new details about how the brain organises learned vocalisations. The study provides a framework for understanding how the brain integrates sensory and motor information to guide learned vocal behaviour.
A large-scale comparative study reveals that some birds have evolved mechanisms to resist protein glycation, a process causing cellular damage from high blood sugar levels. This challenges conventional wisdom on metabolism and ageing in birds.
A study found that adding blood metabolite data to genetic risk scores improves glaucoma prediction accuracy, particularly in individuals at high genetic risk. Higher levels of lactate, pyruvate, and citrate were associated with a reduced risk of glaucoma.
A new integrated 3D imaging approach has revealed exquisite detail of the virus assembly process used by herpes simplex virus during replication. The research identified previously unknown functions of HSV-1 structural proteins and provided insights into the unmutated gene's usual role in viral assembly.
Researchers discovered that tropical riparian ecosystems recovered rapidly within two million years of the end-Permian mass extinction, indicating a faster-than-thought adaptation. This finding contradicts previous theories on ecosystem recovery and suggests that life on land may have been more resilient than previously believed.
Researchers discovered that Wnt3 coordinates a two-step process of cell polarity orientation, enabling jellyfish embryos to develop around a central axis. This discovery sheds light on the evolution of body plans in early animals and may provide insights into cellular-level organisation.
A new tool named retriever extracts disease-specific drug response signatures to predict cancer treatment combinations, improving personalized treatment strategies. The tool refines predictions using single-cell RNA sequencing data and demonstrates its potential in identifying effective treatments for triple-negative breast cancer.
A new study suggests that stalled amyloid protein production contributes to the development of Alzheimer's disease. Researchers found that rare familial genetic mutations linked to early-onset dementia cause deficiencies in multiple APP processing steps, leading to neurodegeneration.
Researchers have discovered how a parasitic phytoplasma manipulates plant biology to attract female leafhoppers, boosting the parasite's own transmission and survival. The study reveals that the presence of male leafhoppers is crucial for attracting females, and that the parasite's effector protein SAP54 plays a key role in this process.
Researchers have identified the gene DYRK1A as a key driver of 'glue ear' in people with Down syndrome, a middle ear condition commonly known as otitis media with effusion. The discovery paves the way for future targeted therapies to address hearing loss in patients.
Researchers have discovered a new approach to treating fentanyl overdoses using naloxone methiodide, which blocks peripheral opioid receptors. This therapy reverses fentanyl-induced respiratory depression without causing withdrawal symptoms.