Articles tagged with Neuroreceptors
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Astrocytic glutamine synthetase plays a key role in regulating glutamate signaling, contributing to nicotine-induced brain changes and locomotor sensitization. A custom-designed peptide inhibits this process, demonstrating the importance of astrocyte communication in nicotine addiction.
A nonsurgical approach has been demonstrated to quiet a specific brain circuit in an animal model by delivering engineered gene therapy only to the targeted region. The method uses low-intensity focused ultrasound to open the blood-brain barrier, allowing precise control over brain activity without impacting off-target areas.
Research uncovers how glutamate regulates pediatric brain tumor growth, suggesting novel approaches to treating these cancers. Inhibiting glutamate receptors has been shown to reduce human pediatric brain tumor growth in mice.
Scientists have discovered the structure and shape of key receptors in the cerebellum, a region critical for movement, balance, and cognition. This finding could lead to the development of therapies to repair damaged synapses and improve brain function.
Scientists have uncovered a previously unknown mechanism explaining how neurons survive botulinum neurotoxin type A exposure. The research found that specific tRNA fragments interact with key proteins and RNA molecules involved in regulating ferroptosis, supporting neuronal survival by blocking cell death pathways.
A comprehensive review article synthesizes decades of research on stress hormone systems in primate brains, revealing key differences between rodents and primates. The findings highlight the importance of considering anatomical differences when developing treatments for stress-related psychiatric disorders.
Researchers identified how the brain assigns positivity or negativity to social experiences through a complex neural circuitry involving the hippocampus. They discovered that serotonin and neurotensin release opposing signals in the ventral CA1 region, which can be leveraged for future therapies.
Calmming the brain's immune cells via norepinephrine may prevent or lessen Alzheimer's inflammation and damage. The study highlights a key role of norepinephrine in mitigating early inflammatory changes and neuronal injury.
A new study by McGill University researchers sheds light on the disruption of calcium transport in the brain's AMPA receptors, linking it to autism and intellectual disability. The findings could pave the way for treatments targeting these receptors, offering hope for patients with related neurological disorders.
Researchers have uncovered ketamine's mechanism of action, revealing how it affects the brain's NMDA receptors. The study provides hope for synthesizing new versions of the drug with fewer harmful side effects.
The Advanced Research + Invention Agency has awarded $84.2 million to Rice researchers to explore and unlock new methods for interfacing with the human brain at the circuit level. The project involves developing a distributed network of minimally invasive implants to stimulate neural circuits with cell-type precision.
Researchers at University of the Basque Country discover molecule that protects brain and reverses initial cognitive damage caused by dementia; increases activity of cannabinoid and cholinergic systems, improving memory. Further studies needed to identify similar molecules for clinical trials.
New research led by Andrija Sente uncovers the atomic structure of GABA <sub> A </sub> receptors, revealing unique subunit combinations that create previously unrecognized receptor types. These findings highlight the need to account for variations in drug development to avoid unintended binding sites.
Researchers found that serotonin release scales with the value of rewards, indicating its role in monitoring reward quality. The study used a new biosensor to measure serotonin levels in mice receiving varied concentrations of evaporated milk as rewards.
Researchers have identified the melatonin MT1 receptor as a crucial regulator of REM sleep, which is essential for dreaming, memory consolidation, and emotional regulation. The discovery holds significant clinical potential for developing targeted treatments to improve the quality of life for patients affected by debilitating diseases.
Scientists at Washington University in St. Louis have found that altering GABA receptor density affects circadian rhythm amplitude and synchrony among SCN cells. Reducing or mutating these receptors decreased the mice's daytime wheel-running and reduced nocturnal activity.
A potential new strategy for reducing diabetes risk associated with antipsychotic medications involves co-administering drugs that block dopamine receptors in the brain alongside those that stop these same receptors in the pancreas. This approach may limit metabolic side effects and improve glucose metabolism.
Researchers at the University of Toronto have found a way to better control the preclinical generation of key neurons depleted in Parkinson's disease. They developed an efficient method for stimulating stem cell differentiation to produce neural cells in the midbrain, which closely resemble dopaminergic neurons of natural origin.
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.
Research reveals that dietary tryptophan can be broken down by gut bacteria into small molecules that bind to a receptor, triggering a pathway that reduces the production of proteins used by E. coli to attach to the gut lining. This ultimately prevents the pathogen from colonizing and causing infection.
Researchers propose GABA-modulating treatments as potential therapeutic targets for depression's cognitive and affective symptoms. The study highlights the importance of GABA-A receptors in regulating balance and signals between neurons, and suggests compounds that promote or inhibit these receptors may alleviate depressive symptoms.
A study using molecular imaging found that individuals with obesity respond differently to food cues than normal-weight individuals, with altered connectivity between brain networks. The research offers valuable insights into potential medical interventions for obesity, including novel drug treatments and behavioral therapies.
A comprehensive dataset of neurotransmitter receptors has been made publicly available, revealing potential role in distinguishing internal thoughts and emotions from external influences. The study's findings have exciting implications for understanding brain function and developing new treatments.
Researchers mapped receptor densities across the cortex, identifying two main arrangements that align with functional systems. The findings provide insights into how the brain adapts to a changing world, with potential applications for computational models and neuroscientific research.
Researchers have observed beta-arrestin molecules directly controlling receptor-mediated signals in living cells using advanced microscopy. The study reveals a new mechanism of how these proteins interact with receptors on the plasma membrane, enabling efficient control of signal flow and desensitization.
Researchers analyzed octopus and squid sensory receptors to discover new families of chemotactile receptors that drive distinct behaviors in the environment. These findings provide insights into the molecular basis of novelty across levels of biological organization.
New research finds Filamin A positions GABA-B receptors to control brain activity and slow down electric impulses. This discovery could lead to new therapies for neurological disorders such as Multiple Sclerosis and epilepsy.
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.
A team of researchers identified a protein kinase substrate downstream of the dopamine signaling pathway regulating brain reward behavior. The study found that phosphorylation of potassium voltage-gated channel subfamily Q member 2 (KCNQ2) decreases its channel activity, increasing neuronal excitability and promoting reward behavior.
Researchers have developed a groundbreaking 'toolbox' to study receptor mobility in the brain, revealing its critical role in certain types of memory. The study used high-resolution imaging and manipulation techniques to observe receptor dynamics in intact brain tissue, providing new insights into the mechanisms controlling memory.
Researchers from Rice University, Duke University, Brown University and Baylor College of Medicine developed a magnetic technology to wirelessly control neural circuits in fruit flies. They used genetic engineering to express heat-sensitive ion channels in neurons that control the behavior, and iron nanoparticles to activate the channels.
Researchers have elucidated principles of human brain organisation across visual, auditory, somatosensory, and motor functional systems. The study revealed systematic changes in receptor architecture and gene expression within each system, reflecting increasing complexity of information processing.
Researchers at MIT found that different types of dendrites process incoming information in distinct ways before sending it to the neuron's body. This specialization enables neurons to integrate various inputs and generate an appropriate response, particularly in navigation and planning movements.
Researchers have solved atomic-level structures of the muscle-type nicotinic acetylcholine receptor, a crucial step in understanding its function. The new findings could lead to breakthroughs in treating neurological disorders such as congenital myasthenic syndrome and myasthenia gravis.
Scientists have discovered how neurotransmitters and proteins interact to trigger neuronal responses in the brain, with implications for understanding mood disorders and addictions. The study reveals small changes in protein connections control cellular responses, enabling precise regulation of neurotransmitter effects.
A WPI biologist has discovered that a key component in a worm's communication system can be repurposed to take on a different function, providing insights into the workings of evolution. This finding could have significant implications for drug interaction research, agricultural bio-engineering, and our understanding of genetic inherit...
Research at Ruhr-University Bochum shows that blindness disrupts brain's organisation and memory ability in mice. After vision loss, other senses like touch, hearing, and smell become more sensitive over time.
Researchers have solved the atomic structure of a brain receptor bound to GABA, a neurotransmitter that regulates calming signals in the brain. The high-resolution structures provide insights into how drugs like benzodiazepines act on the receptor, paving the way for better treatments for epilepsy and anxiety.
A recent study found that a specific manipulation of dopamine receptors impairs chronic pain in male mice but has no effect on females. The researchers suggest that different types of cells drive the development of pain in males and females, leading to the potential for sex-specific pain relief medications.
Researchers discovered a single amino acid replacement underlying the paradox of poisonous frog resistance to their own toxins. This adaptation comes at the expense of reduced acetylcholine receptor function, but is eventually rescued by additional amino acid replacements.
By using an antibody-based technique, scientists inactivated GluA1 receptors at synapses, temporarily abolishing fear memory in mice. The researchers found that inactivation of GluA1 up to 2 hours after a fear-learning task resulted in the loss of fear memory.
Scientists have determined the 3D structure of 5HT3-R, a receptor involved in conditions like chemotherapy-induced nausea and anxiety. The high-resolution structure reveals the receptor's molecular anatomy, providing insights into its function and potential targets for novel medicines.
A new inhibitor has been shown to decrease relapses in ex-smoker rats by preventing the interaction of two neurotransmitter receptors in the brain. The study found that long-term nicotine exposure causes these receptors to interact, leading to increased cravings.
A new method involves molecularly engineering a model synapse to precisely control GABA receptors, which is crucial in brain chemistry. Understanding how these receptors work can lead to creating safer drugs with fewer side effects for disorders like epilepsy and anxiety.
A mouse model showed that GLO1 activity stimulates GABAA receptors, promoting anxious behavior. Inhibition of GLO1 reduces anxious behavior, suggesting it as a potential novel therapeutic target for anxiety disorders and other CNS diseases.
Researchers have successfully converted an intrinsically 'blind' receptor molecule into a photoreceptor using molecular genetic techniques. This synthetic construct enables light-controlled activation and may potentially be used to restore sight in patients suffering from certain forms of blindness.
USC scientists have created the world's first high-resolution images of the α7 receptor, a molecule responsible for transmitting signals between neurons. This breakthrough promises to revolutionize drug design by allowing pharmaceutical companies to target specific receptors instead of using trial-and-error approaches.
Scientists have discovered a compound that selectively targets the M1 receptor, implicated in diseases like AD and schizophrenia. This finding holds promise for developing an effective treatment with minimal side effects.
Researchers genetically modified a brain receptor to make it more sensitive to nicotine, allowing them to study the effects of dopamine production on hyperactivity in mice. This could lead to new knowledge about dopamine neurons' functions and potential treatments for conditions such as ADHD.
Neurons can modulate nerve impulses by releasing two neurotransmitters that target the same receptor, accelerating inhibition and enhancing temporal resolution of inhibition. This finding may represent a new way the brain precisely controls nerve impulses in its circuitry.
Researchers identify neural and signaling mechanisms responsible for hallucinogen effects by studying the activation of 5-HT2A receptors in the brain. The findings may advance understanding of neuropsychiatric disorders treated with existing pharmacological treatments.
Researchers isolated a nerve toxin from an ocean-dwelling snail that may enable scientists to develop medications for a range of nervous system disorders. The new toxin fits like a key into specific lock-like receptors in the brain, opening up potential for designing new medicines.
Researchers have identified a crucial nicotinic receptor in nematode worms that plays a significant role in muscle contraction. The discovery may have direct relevance to humans due to the similarity between the nematode receptor and the alpha-7 nicotinic receptor found in the human brain.
Researchers have developed a biologically accurate computer simulation of synaptic function, indicating that the synapse may behave like a shotgun firing buckshot-like bursts of neurotransmitter to reach receptors arrayed beyond known receiving sites. The new data suggest an alternative mode of neurotransmission called ectopic release.
Researchers have demonstrated that NMDA receptors are actively needed for both associative learning and long-term memory. Disrupting the receptor resulted in difficulties with learning to associate an odor with a footshock, but not with initial learning through training.
The study reveals that recycling endosomes transport molecular cargo to the neuronal surface after being drawn into the neuron, regulating long-term potentiation (LTP) and spine growth. This discovery suggests a unifying mechanism for understanding LTP and its role in learning and memory.
Scientists found obese individuals have fewer dopamine receptors than normal-weight subjects, with the number decreasing as body mass index increases. Exercise has been shown to increase dopamine release and raise dopamine receptors in animal studies, suggesting it may help stimulate dopamine pleasure circuits.
Researchers found a correlation between lower dopamine receptor availability and higher BMI in severely obese individuals compared to control subjects. Exercise is recommended as the most practical application for improving dopamine receptors and reducing pathological overeating.
Researchers propose a blood test to diagnose schizophrenia by measuring the levels of mRNA molecules encoding D3 dopamine receptors on white blood cells. This test may help assess the biological basis of the disease, which is still unknown.
Researchers have identified a new fast serotonin receptor in the roundworm Caenorhabditis elegans that can inhibit neuronal activity. This discovery raises hopes for developing new treatments for disorders caused by serotonin imbalance, such as mood disorders and obesity.