Articles tagged with Nervous System
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.
A study by Fujita Health University researchers unveiled novel insights into the brain's processing of movement and sensation. The findings suggest that signals from motor cortices do not primarily modulate sensory responses in primary sensory cortices, but rather pathways from secondary somatosensory cortex (S2) and sensory thalamus (...
A new study reveals that Respiratory Syncytial Virus (RSV) can infect nerve cells, trigger inflammation, and cause nerve damage. RSV was previously thought to only infect the respiratory tract, but this finding suggests a potential link between the virus and neurological symptoms in children.
The latest issues of APA journals focus on improving clinical outcomes, exploring disparities in school-based support, and addressing civil commitment hearings. These studies aim to inform new interventions and improve mental health care.
Growth hormone influences regulation of anxiety via a specific group of neurons, according to researchers at the University of São Paulo. The study identified somatostatin-expressing neurons as key players in modulating GH's anxiolytic effect, with increased anxiety observed in mice lacking these neurons.
Researchers at Salk Institute uncover a mechanism for repairing damaged nerves during peripheral neuropathy, with protein Mitf playing a key role. The findings have the potential to inspire novel therapeutics that bolster repair function and heal peripheral neuropathy.
A study published by Vienna University of Technology analyzed the effects of extreme physical and mental stress on a rowing athlete's body. The research found that the variability in heart rate, sleep quality, and regeneration during sleep phases were closely related to the athlete's psychological condition.
Researchers have pinpointed the crucial changes in a membrane protein that allow Antarctic octopuses to function normally in freezing temperatures. By swapping specific amino acids, scientists discovered three key modifications that together enable the pump to work efficiently, allowing the octopus's nervous system to adapt and thrive.
Caribbean box jellyfish have demonstrated complex learning capabilities, including associative learning and memory formation, despite having only one thousand nerve cells. This discovery sheds new light on the evolutionary success of jellyfish and raises questions about the universality of advanced learning mechanisms in animals.
Researchers have identified a new cell type, ARG1+ microglia, involved in brain development and function during early postnatal stages. This discovery sheds light on the role of microglia in neural systems and their potential link to neurodevelopmental and neurodegenerative diseases such as Alzheimer's.
Researchers have discovered a group of nerve cells in the midbrain that can completely stop all forms of movement and slow down breathing and heart rate when stimulated. The study provides valuable insight into how the nervous system controls movement and may help understand Parkinson's disease.
Aneurysmal subarachnoid hemorrhage-related hydrocephalus is a complex syndrome that can lead to cognitive impairment and neurological damage. The new consensus guideline recommends standard-of-care approaches, including history review, head CT scans, and medications or surgical interventions to manage excessive intracranial pressure.
Researchers found that glial cells in the gastrointestinal tract respond to stress signals from the central nervous system, leading to inflammation and exacerbating IBD symptoms. Chronic stress can impair treatment efficiency for IBD patients using steroids.
Researchers have discovered that octopuses and cephalopods use RNA editing to rapidly respond to environmental temperature changes. By tweaking their protein function, these animals can acclimate to cold water, but not rapid changes. The study reveals a unique mechanism of genetic adaptation in these species.
A new study found an association between lower extremity spasticity and cryptorchidism treatment in boys with cerebral palsy. Boys with more severe spasticity were especially likely to have had the surgery, suggesting a potential link between affected muscles and testicle development.
Researchers analyzed 90 samples of raw pheasant dog food and found that 77% exceeded the maximum residue level for lead in animal feed. The mean lead concentration was 34 times higher than in human-consumed pheasant meat, posing health risks to dogs, especially puppies.
Scientists have created a detailed map of human spinal cord cell formation, shedding light on how injuries and diseases arise. The study's findings hold promise for developing new therapies for spinal cord injuries and diseases like ALS.
This study found that iron deficiency impairs neural differentiation, leading to reduced Pax6- and Sox2-positive neuronal precursor cells and Tuj1 fibers. Iron supplementation restores normal differentiation, suggesting ferrodifferentiation as a new therapeutic approach for neurological diseases.
A team of UCF College of Medicine researchers created a digital topographical map of the cardiac sympathetic neural network, controlling heart rate and 'fight-or-flight' response. The map will guide treatments like neuromodulation therapy for hypertension, sleep apnea, and heart failure.
A study found that monkeys with opposable thumbs were fooled by a sleight-of-hand trick, while those without were not. The French drop trick worked for capuchins and squirrel monkeys due to mirroring in their neural motor system.
Researchers identified over 1,000 genes with age-related methylation changes in human sperm. These changes are associated with increased offspring disease susceptibility for neurodevelopmental disorders. The study found no correlation between paternal BMI or semen quality and age-related methylation changes.
The study reveals that NEMO forms biomolecular condensates with ubiquitin chains to activate NF-κB signaling, facilitating rapid regulation of cellular responses. A pathogenic mutation in the NEMO gene inhibits this process, leading to a disease characterized by skin abnormalities and neurological symptoms.
Researchers have identified serine as a key contributor to peripheral neuropathy in diabetes, a condition that affects approximately half of people with type 1 or type 2 diabetes. Supplementing diabetic mice with serine alleviated neuropathy symptoms, suggesting a potential treatment option.
A new Dartmouth study uses a subjective approach to investigate how people perceive social interactions. The results show that the brain responds more strongly to information interpreted as social versus non-social, highlighting humans' tendency to see social connections.
A new laboratory test can measure levels of amyloid beta oligomers in blood samples, detecting toxic proteins up to years before cognitive impairment. The test, SOBA, has shown promising results in identifying individuals at risk or incubating Alzheimer's disease.
Research reveals mitochondria play crucial role in NF-κB signaling pathway regulation. Mitochondria assemble signaling platform at outer membrane, amplifying signal through large surface area.
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 developed an epigenetic activator TTK21 to aid spinal cord regeneration in mice 12 weeks after severe injury. Treatment improved axon sprouting, sensory axon growth, and halted retraction of motor axons, leading to potential breakthroughs for human patients.
A new study reveals key clues about the form of the most ancestral nervous system and how it first evolved. Researchers found that neurons, possibly the most complicated cell type ever to evolve, share similar structures with comb jellies and other ancient animal lineages.
A new treatment has shown clinically meaningful effects on pain intensity and disability, with participants reporting improved quality of life and long-term benefits. The sensorimotor retraining approach alters how people think about their body in pain and normalizes communication between the back and brain.
Researchers developed a technology that uses surviving neurons to restore connection between brain and arm via specific stimulation pulses to the spinal cord. This allowed macaque monkeys with partial arm paralysis to improve precision, force, and range of movement in their arms.
The WVU program trains next generation of toxicologists to collect, analyze air samples from mining, fracking sites, using the university's Inhalation Facility. Students will work with preceptors from various fields to investigate health effects of inhaling toxicants.
A new study suggests that supplementing a diet with Ascidiacea, also known as sea squirts, reverses some main signs of aging in animal models. The researchers found that plasmalogens, vital to body processes, decrease with age and contribute to neurodegenerative diseases like Alzheimer's and Parkinson's.
A study by Tokyo University of Science researchers has demonstrated that a computationally-light model can simulate complex brain cell responses, including periodic and quasi-periodic responses. The Izhikevich neuron model was found to be capable of reproducing both types of responses at lower computational cost.
A novel bed net treated with chlorfenapyr has been shown to significantly reduce malaria infection in children, with a 43% decrease in the first year and 37% decrease in the second year. The study found that the bed net reduced clinical episodes of malaria by 44% over two years.
Scientists at Washington State University have discovered a novel theory that the innate immune system can respond differently to specific pathogens. This quality, known as immunological specificity, is driven by the nervous system and could provide a basis for finetuning an experimental treatment to fight infection.
A study by UConn Health and Washington University School of Medicine found that eating more meat correlates with worse MS symptoms, altered gut bacteria, and increased immune cells. The research identified key bacteria and metabolites associated with the disease, providing new insights into its causes.
A University of Ottawa study found that trying to suppress emotions with a poker face or smile has little impact on mood and memory, contradicting past research. Instead, participants used alternative strategies like changing their perspective to cope with distressing moments.
Researchers have identified a new molecular component of Amyotrophic Lateral Sclerosis (ALS) pathological aggregates, a circular RNA called circ-Hdgfrp3. This circular RNA plays a crucial role in the formation and progression of ALS, highlighting its potential as a therapeutic target.
Researchers discovered that a brain area traditionally thought to specialize in old habits also plays a role in learning new actions. The study found that the dorsolateral striatum is involved in consolidating action learning immediately after the new action has been learned.
Researchers describe two new species of fossil ctenophores from Utah with preserved nervous systems and up to 24 comb rows. These findings suggest that Cambrian ctenophores had more complex nervous systems than living species, with specific nerve tracks along the body and a ring around the mouth.
Research found that COVID-19 affects sympathetic nervous system activity, leading to abnormal heart rate and blood pressure responses. This alteration may have long-term implications for cardiovascular health in older adults.
Researchers found that spiders from 11 different families can catch and eat snakes, including species up to one meter in length. The venom of these spiders also has a similar effect on snake nervous systems as it does on humans.
Researchers found that SKN-1B controls behaviors like foraging, eating and resting in nematode worms, which may regulate food-sensing and fullness in humans. The study proposes a similar transcription factor, Nrfs, as a potential target for developing drugs controlling overeating.
Researchers observed that giant unicellular slime molds change tube diameters in response to nutrient sources, imprinted in the hierarchy of thinner and thicker tubes. This reorganization persists for up to 30 minutes before the organism migrates toward the nutrient source, suggesting a mechanism for memory formation.
New studies from the University of Eastern Finland show that obstructive sleep apnea causes higher heart rate variability and changes in heart rate intervals, leading to reduced daytime alertness. The findings suggest a link between OSA and increased cardiovascular disease risk.
A new study found that a Mediterranean diet can enhance stress resilience and slow nervous system aging in animal models. The study showed that the Mediterranean diet reduced sympathetic nervous system activity and cortisol levels compared to a Western diet.
Researchers have discovered how octopuses can taste objects by touch using their suckers, which include discrete populations of sensory cells. The study found that distinct chemotactile receptors form ion channel complexes that detect specific signals and send them to the nervous system.
Laminin plays a crucial role in regulating interactions between migrating neural crest cells and the extracellular matrix. The study found that alterations in LAMR expression contribute to neural crest cell migration failure in Hirschsprung disease, leading to colonization of the distal colon when YIGSR is applied.
Researchers identified a potential underlying mechanism in the nervous system responsible for varying pain patterns with knee osteoarthritis. People with more pain sensitization were more likely to suffer from constant and unpredictable pain.
Researchers at UMD have identified a critical role for the molecule ACC in plant reproduction and pollination, activating proteins similar to those involved in nervous system responses in humans and animals. This finding could rewrite textbooks and lead to new research on improving plant health and crop yield.
A new algorithm can continuously monitor a person's sympathetic nervous system activation using skin conductance and heart rate measurements, aiding in the development of wearable monitors for anxiety disorders.
Researchers used a virtual flight simulator to compare the effects of two pesticides on locusts, finding that the newer sulfoxamine pesticide does not impair motion detection ability at low dosages. The study suggests that the pesticide may be safer than current neonicotinoid options for agriculture use.
Researchers from Dresden and Osaka present a pioneering active matrix magnetic sensor system that overcomes the obstacle of interconnecting individual sensors. The system consists of organic thin-film transistors integrated within a single platform, demonstrating high magnetic sensitivity and robustness against mechanical deformation.
A study by Oregon State University researchers found a connection between children's gut microbiomes and their behavior, with those experiencing behavioral problems having different microbiome profiles. The quality of the parent-child relationship and parental stress also played a role in shaping these differences. Further research is ...
The Asynchronous Coded Electronic Skin (ACES) system can detect touches 1,000 times faster than the human sensory nervous system. It achieves ultra-high responsiveness and robustness to damage, making it suitable for robots and prosthetic devices.
A new study identifies a mechanism in nematodes that allows neurons to transmit information to future generations, influencing physiological processes such as food-seeking behavior. This finding challenges the traditional view of the Weismann Barrier and has major implications for understanding heredity and evolution.
Researchers found that visual and haptic information significantly improves grasp movements, demonstrating the nervous system's use of both types of information for optimal movement execution. The simultaneous availability of vision and haptics led to faster movements and a decrease in grip aperture.
A study published in Nature Communications found that separating male and female mice leads to differences in their olfactory sensory receptors. As a result, the mice may perceive odors differently. This research has implications for understanding sex-specific differences in human olfactory function.
A new article published by CU researchers provides an overview of biological and chemical agents that might be used in potential terror attacks. The authors describe how to recognize, diagnose, treat, and report exposures to various agents, aiming to better prepare healthcare providers for such emergencies.