Articles tagged with Brain
Researchers at Beijing Tiantan Hospital developed a one-stage hybrid operation to treat hypervascular CNS tumors, achieving high rates of gross-total removal and improved neurological function. The technique combines embolization and resection in a single procedure, reducing intraoperative bleeding risk and operative time.
Aging is harsh on the hippocampus, a region responsible for learning and memory. Researchers at UCSF identified protein FTL1, which slows cognitive decline in mice by increasing metabolism. Treating with a compound that stimulates metabolism prevents these effects. The study offers hope for therapies to block FTL1's impact.
Researchers found that brain areas typically involved in hand tool use are still active when individuals use their feet, indicating a more flexible organization. This organization can arise without typical motor experience, providing evidence for action-type as a core driving factor in motor organization and development.
Dr. Allison Sekuler, President and Chief Scientist at Baycrest, has been elected a Fellow of the Canadian Academy of Health Sciences for her ground-breaking research on brain processing and cognitive decline. Her work aims to advance health outcomes for Canadians through innovation and equity in science.
A recent study by researchers at The University of Osaka discovered the crucial role of DNA repair enzyme Polβ in safeguarding the developing brain from harmful mutations. Accumulation of indel mutations near CpG sites may contribute to neurodevelopmental disorders.
A new study finds structural abnormalities in the brain and poorer motor function among NYC children exposed prenatally to chlorpyrifos. The findings are associated with progressively greater alterations in brain structure, function, and metabolism.
Researchers found that the ketogenic diet improved memory and learning abilities following status epilepticus by reducing neuroinflammation through NF-κB signaling pathway suppression. The study suggests that the ketogenic diet may protect the brain and restore cognitive function in individuals with epilepsy.
Researchers identify key symptom categories and biomarkers for anti-NMDAR encephalitis, a rare autoimmune brain condition. Clinical manifestations suggest the presence of anti-NMDAR encephalitis through NMDA antibody checks, uric acid levels, C-reactive protein, and thyroid-related hormones.
Researchers at MIT have developed a new microscope system that can visualize metabolic and neuronal activity in brain tissues with unprecedented depth and precision. The system uses sound waves to detect molecular activity, enabling the imaging of individual cells in dense brain tissue.
A study found that aging selectively degrades essential DNA- and RNA-binding proteins, contributing to neurodegenerative disease hallmarks. This impairment triggers the decline of proteostasis, leading to protein aggregation and age-related brain changes.
A new study reveals that the brain has distinct regions for processing 'things', such as rigid objects, versus 'stuff', like liquids or sand. These findings may help the brain plan interactions with different materials, similar to artificial physics engines used in video games.
A UNIGE team has identified a new brain mechanism responsible for modulating sensory signals. This discovery reveals a previously unknown form of communication between the thalamus and somatosensory cortex, which could explain perception variations and open up new avenues for understanding mental disorders.
Researchers developed a personalized brain stimulation system powered by AI to safely enhance concentration from home. The system, which uses non-invasive brain stimulation and adaptive AI, showed significant improvements in sustained attention and learning abilities.
The Living Brain Project at Mount Sinai has collected over 300 brain tissue samples, revealing that 80% of genes exhibit different expression levels in living versus postmortem brain tissue. This challenges decades of neuroscience research based on postmortem samples.
Researchers grew a 'whole-brain' organoid with neural tissues and rudimentary blood vessels, opening possibilities for studying neuropsychiatric disorders. The multi-region brain organoid retained a broad range of neuronal cell types and formed electrical activity, allowing for real-time study of neurodevelopmental disorders.
The US POINTER trial found that a structured lifestyle intervention of regular exercise, adherence to the MIND diet and social engagement had greater benefits on global cognition compared to an unstructured intervention. The study showed significant cognitive benefit after two years in older adults at elevated risk of Alzheimer disease.
Researchers developed a novel fabrication technique that sidesteps traditional etching by applying a soft PDMS mask during insulation. This approach achieved uniformly exposed tips with minimal residue, resulting in excellent signal clarity and structural reliability.
Researchers used IntelliCage to assess spontaneous behavioral changes in a mouse model of schizophrenia, finding increased hyperactivity and exploratory behavior after treatment with MK-801. However, cognitive flexibility was impaired, suggesting schizophrenia-like behaviors.
Researchers at USC have developed a new understanding of how the human brain organizes its visual memories by sorting them into categories. The study, published in Advanced Science, used human patient brain recordings and machine learning to decode the category of visual image being recalled from precise neural timing.
A systematic review identified 112 studies on implantable brain-computer interfaces, which decode brain signals to control devices. The analysis found that iBCI technologies are being used to control robotic prosthetic limbs and digital technologies, but clinical outcomes were highly mixed.
A specific 'anti-reward' brain circuit becomes hyperactive during cocaine withdrawal, driving discomfort and pushing users back toward the drug. However, this circuit may also serve as a protective mechanism, potentially helping to develop new therapies targeting emotional pain of withdrawal.
Researchers found that map-making brain cells in the hippocampus are activated differently even when navigating a static environment, shedding light on how the brain processes spatial memories. The study's findings could have profound implications for understanding memory, learning, and aging.
Researchers found that astrocytes maintain optimal levels of GABA to enable neural groups to process visual information efficiently. Knocking out Gat3 in mice impaired neuron coordination and reduced ensemble activity, highlighting the importance of astrocytic regulation.
A study published in Scientific Reports found that 44% of autistic teens can mask their diagnosis in school settings, showing faster brain responses to faces and reduced emotional reactivity. Researchers hope this discovery will lead to better support for these teens.
The brain processes visual information in rapid snapshots roughly eight times per second, resolving competition through rhythmic switching between competing inputs. This 'attentional sampling' mechanism is a fundamental solution to the deep problem of cognition's neural implementation.
Researchers identify two human brain genes that contribute to brain size and synapse signaling in zebrafish, providing a roadmap for discovering more genes. The study's findings have significant implications for understanding language disorders and autism.
Leading media voice on health, Dr. Jennifer Ashton, and innovative Stanford cardiothoracic surgeon, Dr. Joseph Woo, join the American Heart Association's volunteer Board of Directors. They bring clinical leadership, scientific innovation, and health media influence to intensify efforts to improve cardiovascular health outcomes.
A new study from UC San Francisco challenges the traditional view of how the brain strings sounds together to form words and orchestrates the movements to pronounce them. The brain relies on a wider network of neurons across many brain areas, centered in the middle precentral gyrus, to coordinate speech-motor sequencing.
Long-haul COVID-19 and myalgic encephalomyelitis/chronic fatigue syndrome share similar pathophysiologies, including oxidative stress, autoantibodies, and impaired mitochondrial energy conversion. These conditions also exhibit neurodegenerative outcomes, such as fatigue, sleep disturbances, and increased risk of dementia.
A small collection of neurons in the brainstem, known as the locus coeruleus, acts like a 'memory reset button' during meaningful changes. This region predicts later memory separation and influences the hippocampus to map experiences. Chronic stress may weaken this neural signal.
Researchers at The University of Osaka discovered a key neuroendocrine pathway underlying the seasonal shift in insect reproduction. The brain peptide corazonin plays a suppressive role in reproduction under short-day conditions, allowing insects to prepare for winter.
A recent Northwestern University study analyzed brain tissue from 174 donated brains, including some from former amateur football players. The researchers found no elevated levels of phosphorylated tau (p-tau) protein in the CA2 region of the hippocampus, which is often associated with CTE and normal aging.
Researchers developed a novel fluorescent probe to visualize AMPA receptors on living brain cells, revealing that new receptors are inserted from inside the cell during long-term potentiation. This breakthrough allows for rapid study of synapse strength and plasticity, shedding light on memory formation and learning.
Researchers developed a low-radiation dose imaging protocol and a deep learning model to generate vital blood flow maps for assessing stroke patients. The innovation slashes radiation exposure by over 80% compared to current methods, making stroke diagnosis safer and more accessible.
A research team led by Virginia Tech's Fralin Biomedical Research Institute is working on a technique that uses focused ultrasound to deliver creatine directly to the brain. This method aims to restore normal brain mass in models of creatine deficiency, which can impair brain development and lead to severe cognitive challenges.
Dr. Xuyu Qian's pioneering research using MERFISH technology created an unprecedented developmental atlas of the human cerebral cortex, analyzing over 18 million single cells. His work aims to identify mechanisms disrupted in conditions like malformations and autism spectrum disorder.
Researchers found that inhibitory neurons born later in brain development mature faster than those produced earlier, ensuring a balanced neural network. This regulation is controlled by genetic mechanisms and may contribute to developmental disorders.
Rice University professor Lei Li has received a NSF CAREER Award to develop wearable medical imaging technology capable of visualizing deep tissue function in real time. The project aims to miniaturize hospital-grade imaging systems into compact, energy-efficient wearables.
A study published in Nature Communications reveals that neurons in mice brain rewire and refine their connections to integrate visual signals from both eyes over a 10-day period. The researchers found that only 40% of the initial synapses survived, with 24% added and 27% removed, indicating an extensive process of synaptic turnover.
Researchers from Karolinska Institutet have identified proliferating neural progenitors in the adult human hippocampus, confirming ongoing neuron formation. This discovery has implications for understanding brain changes during life and developing regenerative treatments for neurodegenerative and psychiatric disorders.
New research suggests that blurry, color-limited vision in early childhood can contribute to the development of key brain pathways. The study proposes that such limited vision allows the brain to specialize in certain processing units, which later develop into distinct pathways for color and fine spatial detail.
A comprehensive study protocol has been developed to investigate pregnancy-related stroke risk factors and long-term implications for mothers and their children. The nationwide multicenter study aims to identify key risk factors associated with ASPP and assess its impact on offspring.
Dr. Danielle Beckman's research uses animal models to understand how viruses like COVID-19 trigger neurological damage and accelerate Alzheimer's disease. Her work has established critical connections between viral infections and neurodegenerative processes.
Scientists have developed a new multiscale modeling approach that can simulate how microscopic changes affect macroscale brain activity. The framework successfully predicted the effects of anesthesia on synaptic receptors, bridging the gap between molecular and whole-brain levels.
Researchers used advanced neuroimaging and the Julich-Brain Atlas to identify specific brain networks linked to psychopathy, finding reduced volumes in multiple regions including basal ganglia, thalamus, and cortex. This study advances research on neuropsychobiological correlates of aggression.
A study in mice reveals that only 40% of synapses survive during critical development, with active spines more likely to endure. Clustering of spines also emerges, allowing them to combine activity and enhance visual processing.
Researchers have discovered that multimodal pain integration in the brain significantly enhances overall pain perception when participants are instructed on how to perceive the pain. The precuneus region of the brain plays a vital role in integrating pain information into a cohesive and intensified pain experience.
A study by researchers at the University of Gothenburg found that newborn babies and patients with Alzheimer's disease share elevated levels of phosphorylated tau, specifically p-tau217. In newborns, this protein reflects a healthy mechanism for brain development, while in Alzheimer's patients, it indicates disease progression.
A USC study found that high levels of iron in the brain contribute to cell damage and oxidative stress, accelerating Alzheimer’s symptoms in individuals with Down syndrome. This connection could lead to targeted treatments and improved outcomes for those at risk.
Researchers discovered that a lack of sleep affects how people with migraines process pain signals in the brain. This can lead to increased sensitivity and severity of migraine symptoms, highlighting the importance of adequate sleep for migraine management.
The new edition of Mark Bear's neuroscience textbook emphasizes accessibility and excitement, presenting the hard science without making it hard. The book features over 100 'Path of Discovery' essays by prominent neuroscientists, including several Nobel prize winners.
A 16-year study of over 10,000 individuals aged 50+ found that those with higher wellbeing were more likely to have better scores on memory tests. The association was independent of depressive symptoms and suggested that psychological factors affect brain health.
Dr. Sophia Shi's groundbreaking research reveals that the glycocalyx deteriorates with age, leading to blood-brain barrier dysfunction and cognitive decline. Her work provides concrete molecular targets for drug development and may lead to treatments that address the root causes of neurodegeneration.
Researchers at Harvard University's Wyss Institute have successfully created human microglia cells in a dish, using induced pluripotent stem cells, within four days. This breakthrough enables new avenues for brain disease-focused research and potential therapeutic perspectives.
A study by Max Planck researchers reveals that the ELAV protein acts as a global master switch for circular RNA (circRNA) production in neurons. The discovery explains the high prevalence of circRNAs in the nervous system, which are crucial for development and synaptic function.
The Lieber Institute is developing a new tool called GRAPE that combines generative and predictive AI to find new, more effective treatments for brain disorders such as schizophrenia. The institute is utilizing AWS gen AI and compute services to advance research and store its massive collection of genomic and other data in the cloud.
Research reveals shared genetic associations between type 2 diabetes mellitus and subcortical brain volumes, including hippocampus and amygdala. The study identifies 229 loci associated with T2DM and 220 loci with subcortical brain structures, providing critical genetic evidence for risk prediction and early intervention strategies.
Researchers have discovered a novel cell-clearance pathway linked to diseases such as Chediak-Higashi Syndrome, which affects immune system function. The study used CRISPR/Cas9 gene-editing technology and live imaging to characterize this pathway and identify key genes involved.
Brain-computer interface (BCI) technology offers new hope for individuals affected by paralysis, aphasia, and neurodegenerative diseases. BCIs are poised to influence cognition, ethical governance, and national security as they transform how we interact with the world.
Researchers discovered that the brain's retrosplenial cortex (RSC) encodes competing navigation hypotheses in distinct neural activity patterns. These patterns allow animals to choose the correct path despite ambiguity, and can be used to compute how to reach a reward.