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Life Sciences

Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.

447,757 articles | 2542 topics

Health and Medicine

Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.

431,843 articles | 751 topics

Social Sciences

Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.

260,756 articles | 745 topics

Physical Sciences

Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.

257,913 articles | 1552 topics

Applied Sciences and Engineering

Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.

225,386 articles | 998 topics

Scientific Community

Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.

193,043 articles | 157 topics

Space Sciences

Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.

29,662 articles | 175 topics

Research Methods

Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.

21,889 articles | 139 topics

Mathematics

Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.

3,023 articles | 113 topics

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Biologists find new source for brain's development

A team of biologists has found that glia, previously regarded as passive support cells, are crucial to nerve-cell development in the brain. The study reveals that fundamental questions about brain development can only be understood when accounting for glial contributions.

A molecule for proper neural wiring in the cerebellum

Researchers at Hokkaido University found that the GLAST molecule facilitates functional wiring of brain cells involved in motor coordination. Glutamate transporters, like GLAST, enable high-fidelity signal transmission between nerve cells.

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Scientists regenerate retinal cells in mice in UW Medicine-led study

Researchers successfully regenerated functioning retinal cells in adult mice using the Ascl1 gene, a breakthrough that could lead to treatments for retinal damage caused by trauma, glaucoma, and other eye diseases. The discovery builds on previous research in zebrafish, which have a remarkable ability to regenerate damaged tissue.

A closer look at brain organoid development

Researchers have characterized cerebral organoids, showing they recapitulate human brain developmental processes and involve forebrain organizing centers. These findings advance our understanding of normal organoid development and are essential for modeling human developmental diseases.

Supporting actors take lead role as our brains age

Researchers found that glial cells, which support neurons, undergo significant changes with aging, particularly in brain regions damaged by neurodegenerative diseases. This discovery suggests a new approach to understanding and treating dementia, Alzheimer's, and Parkinson's diseases.

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Research will explore new therapies for Huntington's disease

Huntington's disease, a hereditary neurodegenerative disorder, is characterized by the loss of medium spiny neurons and motor control problems. A new award will support research to develop a stem cell-based therapy that swaps sick brain cells for healthy ones.

In the gut, nervous cells are the 'eyes and ears' of the immune system

A team of scientists has discovered that the intestinal nervous system protects the bowel's lining against inflammation and microbial aggressions. The researchers found that this mechanism is under control of the Ret protein, which regulates the production of interleukin-22, a molecule important for gut repair.

New role for glial energy metabolism in addiction

A new study published in Biological Psychiatry suggests that glial energy metabolism plays a critical role in addiction-related behaviors. Researchers found that altering glial lactate release and nerve cell uptake of lactate prevented long-lasting relapse in rodents.

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Cell transplants may alleviate Huntington's disease

Researchers at the University of Copenhagen have made significant breakthroughs in treating Huntington's disease by transplanting healthy glia cells into mice. The study shows that this method can prolong life expectancy and alleviate symptoms, offering hope for future treatment of neurological diseases.

Narcotic painkillers prolong pain in rats, says CU-Boulder study

A new CU-Boulder study found that morphine treatment can cause chronic pain by exacerbating the release of pain signals from specific immune cells in the spinal cord. This could have far-reaching implications for humans, as opioids are already linked to thousands of fatal overdoses annually.

Hopes of improved brain implants

Researchers at Lund University have developed a new type of brain implant that uses nanowires to stimulate or capture signals from different areas of the brain. This breakthrough could lead to improved treatments for Parkinson's disease, depression, autism, and paralysis.

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Regulatory effects of glial cells on retinal synaptic plasticity

Retinal glial cell activation is involved in retinal synaptic plasticity following acute high intraocular pressure-induced retinal damage. Inhibiting glial cell activation may be a promising strategy to modulate retinal synaptic plasticity and protect neurons from death.

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Anti-epilepsy drugs can cause inflammations

Researchers at Ruhr-Universität Bochum investigated anti-epilepsy drugs' effects on glial cells. They found that valproic acid and gabapentin promote cell survival, while phenytoin and carbamazepine have pro-inflammatory properties.

Cells from the eye are inkjet printed for the first time

Researchers have made a breakthrough in printing cells from the human retina using piezoelectric inkjet technology, opening up new possibilities for treating blindness. The study successfully printed two types of cells, ganglion cells and glial cells, which remained healthy and retained their ability to survive and grow in culture.

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Rat hippocampal neurons: An executor of neuroinflammation

Recent research reveals that Toll-like receptor 4 expressed in cerebral cortical neurons stimulates inflammatory pathways, suggesting that neurons may be both passive victims and activators of neuroinflammation. Lipopolysaccharide triggers the Toll-like receptor 4/nuclear factor-κB pathway, leading to neuroinflammatory responses.

Unique epigenomic code identified during human brain development

A new study by Salk scientists reveals that the landscape of DNA methylation in brain cells is highly dynamic during brain circuitry formation, helping to understand how information in the genome is controlled from fetal development to adulthood. The discovery opens a deeper understanding of how intricate patterns of connectivity in th...

Using human brain cells to make mice smarter

Researchers implanted human brain cells into mice, finding enhanced learning and memory compared to normal mice. The study suggests that human-specific glial form and function contribute to the evolution of human cognition.

Zebrafish reveal promising mechanism for healing spinal cord injury

Researchers discovered a protein that promotes the adoption of bipolar glial shape in zebrafish, encouraging nerve regeneration and potentially offering a new therapeutic target. The findings suggest an alternative approach to scar tissue formation, which is a major barrier to spinal cord repair in mammals.

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Neural protective protein has 2 faces

Researchers discover that decreasing Lhx2 activity triggers glial reactivity, while increasing its activity is key to producing protective proteins. This finding holds promise for developing novel therapies for neurodegenerative diseases.

Development of the glial cell revealed

A team of researchers has identified a novel transcripitonal cascade that controls gliogenesis, the process by which glial cells are generated from neural stem cells. This discovery provides new insights into how glial cells support neuronal function and are implicated in neurological disorders such as Retts Syndrome, ALS, and Multiple...

Brain's connective cells are much more than glue

New Tel Aviv University research reveals glia cells' pivotal role in brain plasticity, adapting to new stimuli and regulating neural activity. Glia cells sort information for learning purposes, controlling the transfer of signals between neurons.

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Unexpected cell repairs the injured spinal cord

A recent study published in Science has discovered that the majority of scar cells in spinal cord injuries are derived from pericytes, not glial cells. This finding suggests that modulating pericyte activity could potentially stimulate functional recovery after CNS damage.

Protein keeps sleep-deprived flies ready to learn

Researchers found that increased NOTCH activity helps sleep-deprived fruit flies learn and behave normally. Boosting NOTCH may provide a natural way to combat cognitive deficits caused by prolonged wakefulness.

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Laboratory studies show promise for new multiple sclerosis treatment

A new compound, ATL313, has shown promise in reversing multiple sclerosis (MS) effects by resetting glial cells to an anti-inflammatory state. The treatment stopped MS-caused paralysis in rats for weeks at a time and could potentially heal lesions, offering a major breakthrough in treating MS symptoms.

A master mechanism for regeneration?

Researchers at the University of Michigan have found that genes involved in fin regeneration and heart repair are also required for rebuilding damaged light receptors in the eye. The study suggests that a common molecular mechanism guides the process, no matter what body part is damaged.

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Potential pathway for drug intervention

A newly identified molecular pathway directed stem cells to produce glial cells, providing insights into the neurobiology of Down's syndrome and central nervous system disorders. The study found that synaptojanin-1 is essential for glia production, which may lead to the development of drugs that inhibit glial proliferation.

Turn back, wayward axon

Researchers found that two receptors, neogenin and Unc5B, work together to guide a growing axon towards its destination. The discovery sheds light on how the axon navigates through the body and could have implications for understanding neurological disorders.

Experts examine causes, treatment and prevention of glaucoma

Researchers are exploring various factors that contribute to glaucoma, including the role of glial cells, mitochondria, and immune response. The report highlights potential approaches for neuroprotection, such as targeting mitochondrial events and manipulating the immune system to repair neural tissue.

Mammals can be stimulated to regrow damaged inner retina nerve cells

Researchers at the University of Washington have reported that mammals can be stimulated to regrow inner nerve cells in their damaged retinas. The study used a specific type of cell called Müller glia and found that it could be encouraged to regenerate in living mice by injecting growth factors.

Without glial cells, animals lose their senses

Scientists have discovered that glial cells play a crucial role in regulating the activity of sensory neurons and enabling animals to perceive their environment. Without glia, sensory neurons are unable to coordinate an appropriate response to stimuli.

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Resuscitation technique after brain injury may do more harm than good

Researchers at UT Southwestern Medical Center found that giving infants and children 100% oxygen after a brain injury can cause more harm than good. The study suggests that brief exposure to 100% oxygen during resuscitation worsens white-matter injuries, leading to increased brain-cell death and coordination problems.

Protein found that may provide relief from neuropathic pain

Researchers from the University of California, San Diego, have identified a protein called LRP1 that may help ease neuropathic pain by blocking the response of glial cells. The study found that administering LRP1 into injured peripheral nerves decreased the level and activity of proinflammatory cytokines, leading to reduced pain.

New study demonstrates important role of glia in circadian timing

Researchers at Tufts University have identified a specific population of glial cells required for controlling circadian behavior in Drosophila, suggesting an autonomous glial mechanism drives circadian rhythms. The study's findings have broad implications for understanding diseases affected by altered biological timing mechanisms.

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Fish eyes could hold clue to repairing damaged retinas in humans

Researchers have identified Müller glial cells with stem cell properties that can regenerate the retina and restore vision in zebrafish. The team hopes to develop this approach for human use, potentially using a person's own cells to stimulate growth and repair.

Bisexual fruit flies show new role for neurochemical

Researchers at University of Illinois Chicago discovered that receptor numbers on nerve cells are controlled by brain's level of glutamate, a previously ignored neurotransmitter. This finding has implications for understanding perception, learning, and behavior, including homosexuality.

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New compound stops brain cell degeneration in Alzheimer's disease

Researchers at Northwestern University have developed a new compound that selectively inhibits pro-inflammatory proteins called cytokines by glia, slowing or reversing neuroinflammatory cascade progression. The compound also restored normal synaptic function and attenuated Alzheimer's-like behavioral deficits in mice.

Scientists push forward understanding of multiple sclerosis

Researchers have identified two proteins found in the Neurofascin gene that link glial ensheathment of nerve fibers to node formation. This breakthrough discovery may help find ways to improve nerve conduction in patients with conditions like MS.