Articles tagged with Molecular Neuroscience
Researchers identified a novel role for the locus coeruleus in facilitating transition between NREM and REM sleep states while maintaining unconscious vigilance. Stress disrupts its functions, negatively impacting sleep quality. The study provides crucial insights into sleep disorders and could lead to improved treatments.
The study found decreased NMDA receptors in synapses and increased extrasynaptic membranes in Alzheimer's patients, suggesting neuronal toxicity-related activity. The novel protocol allows for precise analysis of these receptors in human postmortem brains, paving the way for new therapeutic approaches.
Researchers at the University at Buffalo have identified the binding site of low-dose ketamine, revealing how it alleviates major depression symptoms within hours. The study also identifies how depression originates in the brain and may lead to further research on using ketamine-like drugs for other brain disorders.
Researchers discovered that NMDA receptors set the baseline level for neural network activity, helping maintain stable brain function. The study's findings suggest potential innovative treatments for diseases linked to disrupted neural stability.
Researchers identified hundreds of brain proteins associated with inter-individual differences in functional connectivity and structural covariation. The proteins were enriched for those involved in synapses, energy metabolism, and RNA processing, providing insights into the mechanistic basis of human cognition and behavior.
A study led by Graciela Pineyro and Tomas Paus found that cannabis use in adolescence can lead to thinning of the cerebral cortex, affecting communication between neurons. The researchers used a combination of methods to demonstrate THC's impact on brain cells and identified genes associated with cortical thinning.
The international project will analyze temperature-sensitive proteins in animals adapted to different thermal environments to understand how they perceive temperature changes. The study aims to uncover the molecular mechanisms underlying cold perception in animals, enabling them to initiate physiological responses crucial for survival.
A recent study published in Nature Cancer has discovered that cancer cells exhibit opposing pro and antitumor programs, with the former promoting metastasis and the latter combating tumor growth. This finding opens new avenues for therapeutic strategies to target highly aggressive and therapy-resistant tumors.
Researchers identified key aspects of how neurons integrate information over seconds, a timescale consistent with behavior. They found that CaMKII is an instructive signal for this process, but does not define synapse specificity, revealing a broader time window for synaptic plasticity.
Newly developed tools enable selective labeling and manipulation of synapses, advancing understanding of learning, memory, and neurological disorders. The review highlights promising molecular actuators and optogenetic approaches to unravel synaptic function mysteries.
Researchers have developed novel photoacoustic probes for neuroscience applications, enabling visualization of neurons in specific brain regions. The probes use a combination of protein and synthetic dye to bind to chemicals and emit sound waves that can be detected by imaging equipment.
Researchers have identified a metal deficiency in SOD1 protein associated with motor neurone disease using native ambient mass spectrometry imaging. This breakthrough could lead to new insights and treatments for the disease, which affects around 5,000 people in the UK.
Researchers found that dopamine treatment increased neprilysin levels and reduced beta-amyloid plaques in mouse brains, improving memory function. Long-term L-DOPA treatment also showed improved cognitive performance in mice.
Viji Santhakumar, a UCR professor, has been awarded a $3.5 million NIH grant to study brain circuit function and its impact on memory formation and cognitive deficits in diseases like epilepsy and Alzheimer's disease.
Researchers discovered underlying sex differences in molecular pathways driving reward-related behaviors, which could lead to more effective treatments for mental health disorders. The study found that females use a different channel for calcium ions and an estrogen receptor to strengthen connections between brain regions.
Researchers at Colorado State University used human stem cells to study synaptic connections in the brain, focusing on GABAergic synapses. They found that Gephyrin promotes autonomous assembly of these synapses, which can develop independently of neuronal communication. This understanding could lead to new treatments for neurological d...
A study by TUM researchers discovered four subtypes of Amyotrophic Lateral Sclerosis (ALS) with different molecular processes, including sex differences. The findings suggest repurposing an approved cancer drug targeting the MAPK pathway as a promising therapeutic approach for ALS.
A new microscopy system called mosTF enables fast and clear imaging of the living brain, improving tracking of rapid changes in neural circuit structure. The system outperforms traditional two-photon microscopy methods by eight times speed and four-fold signal clarity.
Researchers create largest and most advanced multidimensional maps of gene regulation networks in the brains of people with and without mental disorders. The study uses postmortem brain tissue from over 2,500 donors to map gene regulation networks across different stages of brain development and multiple brain-related disorders.
FutureNeuro, a leading SFI Research Centre, is expanding its research programme with a focus on diagnostics, therapeutics, and digital health. The centre aims to develop precision diagnostics, future treatments, and systems using real-time health data.
A study by IBS researchers has identified the anterior cingulate cortex (ACC) as a key region responsible for sensory hypersensitivity associated with autism spectrum disorders. The team discovered that ACC hyperactivity and brain-wide hyperconnectivity contribute to sensory abnormalities in Grin2b-mutant mice.
Researchers investigate how early-stage Alzheimer's disease affects memory formation by examining synaptic connections and amyloid beta. The study aims to understand the role of NMDA receptors in synaptic plasticity and how they might be hijacked by amyloid beta, leading to memory dysfunction.
Researchers at RIKEN Center for Brain Science discovered neural circuitry in the spinal cord that enables brain-independent motor learning and recall. The study found two critical groups of neurons: one necessary for new adaptive learning and another for recalling adaptations once learned.
A team of researchers found potential ways to interrupt the misfolding of tau proteins by targeting sticky sites along the long form of mutated tau, preventing neurofibrillary tangles. This breakthrough could lead to therapeutic interventions capable of disaggregating or preventing tau aggregation.
Researchers have solved the long-standing question of what triggers the alarm response in fish by identifying two distinct chemical signals: Daniol sulphate and Ostariopterin. These substances convey separate pieces of information that must be detected simultaneously to trigger a flight-or-freeze response.
Researchers developed chronological age prediction models by analyzing gene expression changes in the prefrontal cortex, identifying genes associated with aging and potential mechanisms. The models showed high correlation with age and demonstrated female and male-specific differences.
Researchers developed a new machine learning method to analyze brain data, separating intrinsic neural patterns from sensory inputs. The method revealed surprisingly consistent hidden patterns in three subjects' neural activity despite different tasks.
Researchers found that brain waves are slower in deep cortical layers and faster in superficial layers, with gamma waves dominating the topmost layers. These oscillations may play a fundamental role in brain function and contribute to disorders such as attention deficit hyperactivity disorder.
A new study led by Dr. Richard Naud of the University of Ottawa's Faculty of Medicine tackles the mystery of neuronal response variability, controlling output with dendrites' inputs to the core and little antennas
Researchers have discovered a brain circuit that mediates panic disorder, consisting of specialized neurons that send and receive the neuropeptide PACAP. Inhibiting PACAP signaling reduces panic symptoms, offering promising findings for future treatments.
Researchers established a molecular link between specific B12-producing gut bacteria and acetylcholine production in C. elegans, a neurotransmitter important to memory and cognitive function. A diet rich in these bacteria reduced seizure-like behavior in mutant worms by restoring excitatory/inhibitory balance.
Researchers unveiled an atlas cataloging the location and type of every cell in the adult mouse brain, revealing a complex relationship between genetic identity and spatial position. The map, which charts over 5,300 cell types, provides a detailed 'parts list' for the brain and could pave the way for precision treatments for diseases.
Researchers found that learning occurs through continuous formation of new connections between specific engram cells in different regions of the brain. This process allows us to form and store memories, with changes in synaptic wiring connectivity between these cells being a key mechanism for memory storage.
Researchers discovered that apotransferrin can mitigate the damaging effects of intracerebral haemorrhage by guarding against ferropoptosis, a cell death process. This finding highlights the therapeutic potential of apotransferrin as a pre-hospital treatment for stroke patients.
A team of neuroscientists and physicists at Princeton University studied the brain of Caenorhabditis elegans to understand how information flows through a network of interacting neurons. They used optogenetics to activate individual neurons and observe how other neurons responded, shedding light on the complex neural connections.
Researchers at Imperial College London found that specific brain cells in the prefrontal cortex trigger mice to prepare for bed when tired, a behavior likely shared with humans. This hard-wired survival feature suggests that humans should prioritize sleep hygiene to maintain good health.
Researchers found that individual neurons can stochastically mix and match up to eight different editions of the Complexin 7A protein, leading to varying levels of glutamate release. This variation may endow each neuron with fine degrees of communication control, allowing for robust tuning of multiple features of neuronal output.
A UMass Amherst neuroscientist is mapping the brain of a sea slug to study how neurons are added to functional neural circuits, shedding light on how this process contributes to neurological conditions. The project aims to provide an unprecedented look at brain development and potentially inform human brain development.
A Penn State-led research team discovered that somatostatin signaling acts to dampen communication among cell types in the prefrontal cortex, promoting exploratory and risk-taking-like behavior. The findings suggest that somatostatin fine-tunes circuits to promote certain behaviors, including decision making.
Scientists have identified platelet factor 4 (PF4) as a common messenger for the cognitive benefits of young blood transfusion, exercise, and the longevity hormone klotho. Studies show that PF4 calms down the aged immune system, reducing inflammation and promoting brain plasticity and cognition.
Researchers at the University of Missouri have developed a new method using nanopores to advance discoveries in neuroscience and medical applications. The technique allows for real-time detection of dynamic aptamer-small molecule interactions, which can aid in understanding DNA and RNA diseases and drug discovery.
Researchers found that Period 1 gene becomes more active in memory-forming region of brain in daylight hours after learning, playing crucial role in consolidating memories. Mice exhibit improved daytime memory performance compared to nighttime.
In a new study, Salk Institute scientists discovered that dopamine regulates anxious worm behavior in the presence of nipping predators. The findings illuminate how this dopamine-regulated brain pathway may be related to anxiety and could provide insight into human conditions like PTSD.
LSU Health New Orleans researchers found that a combination therapy using Neuroprotectin D1 and Resolvin D1 boosted brain cell survival, growth, and stability. The therapy showed promising results in reducing lesion volume and improving neurological function in acute ischemic stroke models.
Scientists have discovered that increasing expression of the RIT2 gene reduces alpha-synuclein accumulation and protects neurons from cell death in Parkinson's disease. This breakthrough offers hope for developing a simpler intervention to reduce risk of the disease.
A team of scientists has developed an automated algorithm to reconstruct the shape of each neuron inside a light microscopy image using deep learning. This breakthrough addresses the challenge of generalizing algorithms across diverse species, brain locations, developmental stages, and microscopy image sets.
Researchers found that a specific neuropeptide affects two separate groups of neurons, promoting aggressive behavior in fruit flies. This discovery provides new insights into the complex mechanisms of neuronal communication using neuropeptides.
A Scripps Research team found that both alcohol intake and withdrawal can lead to increased pain sensitivity in adult mice. The study suggests potential new drug targets for treating alcohol-associated chronic pain and hypersensitivity.
The Center for C. elegans Anatomy is receiving $2.6 million in funding from the NIH to expand WormAtlas, a resource for researchers studying C. elegans and other nematodes. The expansion aims to incorporate new nematode species into the atlas, enabling comparisons between C. elegans and less-studied species.
A new study finds that dietary choline deficiency can cause profound negative effects on the body, including organ damage and changes in brain pathology associated with Alzheimer's disease. The research highlights the importance of adequate choline intake to protect against neurodegeneration and improve overall health.
New expansion microscopy methods, dubbed Magnify, allow researchers to observe nanoscale biological structures with standard microscopes. The protocol retains biomolecules intact, enabling simultaneous imaging of proteins, lipids, and carbohydrates.
Neuroscientists have uncovered a brain circuit that enables mice to rapidly escape to shelter when faced with a threat. The retrosplenial cortex and superior colliculus form a circuit that encodes the direction to a shelter, allowing mice to accurately orient and escape.
Chronic stress alters neuronal structure and function in the brain, leading to anxiety disorders. Researchers identified a potential mechanism underlying this change by studying glucocorticoid receptors in mice.
A new study published in Molecular Psychiatry sheds light on the neural mechanisms underlying stress-related behaviors, revealing that glutamate cells in the ventral tegmental area play a critical role. The research found that mice exposed to uncontrollable stressors exhibited more pronounced anxiety-like behavior, whereas those with c...
Researchers discovered that krill oil protects dopaminergic neurons from age-related degeneration through temporal transcriptome rewiring and suppression of several hallmarks of aging. Krill oil increases neuronal resilience, promoting anti-oxidative stress and anti-inflammation, and abrogating multiple aging hallmarks.
A new hallmark of ALS has been identified, revealing that loss of the RNA processing protein SFPQ leads to motor neuron degeneration. Defective mRNAs accumulate in axons and interfere with normal function, pointing to a possible new target for therapy.
The study provides detailed pictures of NMDA receptors, which mediate essential signals between neurons. The findings have significant implications for treating schizophrenia, depression, and other neuropsychiatric conditions.
Dr. Ted Price is leading a $11.3 million NIH multicenter project to elucidate the origins of pain, focusing on human nociceptor and spinal cord molecular signatures. Researchers will study DRG tissue from organ donors to understand how neurons communicate signals along the human pain pathway.
A research team has identified a specific cell group in the brain that regulates shifts in the sleep-wake rhythm caused by psychostimulants. The hypothalamic dopamine locus is responsible for modulating circadian rhythms and gates the effect of psychostimulants, leading to increased alertness and activity.
Dr. Inagaki will receive $2.895 million in funding to study the brain's ability to learn new behaviors and explore its molecular and neuronal activity. He aims to understand diseases and injuries that affect learning and memory.