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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

New HIV-vaccine tested on people

Researchers have developed a new therapeutic vaccine that uses a person's own dendritic cells to stimulate an improved immune response against HIV. The vaccine showed virtually no side effects and significantly enhanced the body's ability to suppress the virus, but did not eliminate it entirely.

Secrets of immune response illuminated in new study

Researchers at Arizona State University investigate the coordination of a particular type of immune response involving the release of IFN-λ, a cell-signaling protein molecule. They found that antigen-independent production of IFN-λ by memory T cells relies on splenic dendritic cells and NOD-like receptors.

Scientists learn how stem cell implants help heal traumatic brain injury

Researchers at the University of Texas Medical Branch at Galveston identified key molecular mechanisms by which implanted human neural stem cells aid recovery from traumatic axonal injury. The study found that stem cell transplantation prevents further axonal injury and promotes axonal regrowth through the secretion of glial derived ne...

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Dendritic cells protect against acute pancreatitis

Researchers found that high levels of dendritic cells in the pancreas can alleviate cellular stress caused by severe inflammation, while low levels are associated with exacerbated pancreas injury. Dendritic cells play a critical protective role in pancreatic organ survival.

Tiago Branco wins Eppendorf/Science Prize

Tiago Branco's research focuses on how single neurons process information from the outside world to generate behaviors. He discovered that dendrites actively filter and transform this information, enabling single neurons to solve complex computational tasks.

The architects of the brain

Researchers found that specific receptor variants determine the development of nerve cells' dendrites, a crucial mechanism for communication. Different cell classes use these variants to grow dendrites in unique ways.

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Immune peacekeepers discovered

Centenary Institute researchers have identified a set of immune cells in the outer layer of the skin that prevent the immune system from attacking friendly bacteria. This discovery opens up new possibilities for treating inflammatory bowel disease and other immune-mediated disorders.

QBI researchers identify signals triggering dendrite growth

A study in worms has yielded clues about how nerves grow by identifying the molecular mechanisms that prompt dendrite development. The QBI team discovered that a ligand and receptor work together to coax certain neurons to extend dendrites towards their targets.

Rare immune cell is asset and liability in fighting infection

Scientists at WashU Medicine reveal that CD8 alpha+ dendritic cells (CD8a+ DCs) help fight infections, but can also be hijacked by bacteria like Listeria to cause harm. The trait that makes these cells both an asset and a liability is the way they alert other immune cells.

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Skin sentry cells promote distinct immune responses

A new study reveals that subsets of dendritic cells in the skin can promote unique and opposite immune responses against the same type of infection. The research highlights the critical role of dendritic cells in initiating an effective immune response.

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Fast track to vascular disease

A study found that dendritic cells release CCL17, which drives atherosclerosis by restraining regulatory T-cell homeostasis. The researchers used transgenic mice to demonstrate the role of CCL17 in promoting atherosclerosis.

Serendipity leads to lifesaving discovery

A McGill research team identified two distinct disease-causing mutations in the IRF8 gene, which causes severe immunodeficiency and disseminated BCG infection. These findings led to a successful stem cell transplant that saved the life of a three-month-old baby girl.

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New microscope decodes complex eye circuitry

Researchers have discovered that retinal ganglion cells receive visual information from amacrine cell dendrites running along the null-direction, allowing for directional selectivity. This mechanism relies on asymmetric synapses and inhibitory influences between neighbouring amacrine cells.

Key protein discovered that allows nerve cells to repair themselves

A team of scientists led by Melissa Rolls has discovered a key protein controlling the layout of microtubules in dendrites, allowing neurons to regenerate after severe injury. The research provides new insights into the process of nerve cell regeneration and potential avenues for treating neurodegenerative diseases.

Process leading to protein diversity in cells important for proper neuron firing

A novel form of splicing in the cytoplasm of nerve cells dictates a special form of a potassium channel protein in the outer membrane, essential for coordinating electrical firing of nerve cells. This discovery highlights the importance of introns in regulating protein diversity and has implications for brain diseases such as epilepsy.

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New class of 'dancing' dendritic cells derived from blood monocytes

Scientists at Rockefeller University have discovered a new class of dendritic cells, called monocyte-derived dendritic cells, that can be derived from blood monocytes. These cells have been shown to have the same functional properties as classical dendritic cells and are promising for therapeutic uses in humans.

Protein behind development of immune system sentinels identified

Researchers at Walter and Eliza Hall Institute have identified a protein called PU.1 as essential for the development of dendritic cells, which are key players in the immune response. By regulating PU.1 expression, Flt3 can control DC development, revealing a crucial role for this protein in immune system function.

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These dendritic cells are fishy, but that's a good thing

Researchers have identified dendritic cells in zebrafish, opening up new possibilities for studying the complexities of the human immune system. The discovery provides another model for investigating the mammalian immune system, particularly with regard to humans.

Rare hybrid cell key to regulating the immune system

Researchers at Medical College of Georgia have identified a rare hybrid cell that can switch the immune system on or off, expressing indoleamine 2,3 dioxygenase to turn off T cells. This unique cell has properties of both dendritic and B cells, with potential implications for cancer and rheumatoid arthritis therapies.

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A magnetometer in the upper beak of birds?

Researchers discovered a magnetometer system in the upper beak of birds, composed of over 500 dendrites that encode the magnetic field information. This system helps birds create a magnetic map for spatial orientation, contradicting previous myths about iron-based magnetoreception.

How nerve cells grow

Researchers have discovered a molecular process that controls the growth of nerve cells, allowing them to form complex extensions for signal transmission. The study highlights the importance of Nedd4-1 enzyme in regulating cytoskeleton structure and ensuring normal dendrite growth.

Protein found to be key in protecting the gut from infection

A signaling protein, GM-CSF, plays a vital role in fighting bacterial infections and inflammation in the intestinal tract. Its deficiency is linked to increased susceptibility to persistent gut infection, severe inflammation, and disease duration.

GoPro HERO13 Black

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Identified: Switch that turns on allergic disease in people

A new study identifies thymic stromal lymphopoietin (TSLP) as a molecule that directs immune cells to develop an allergic response. The signaling molecule is involved in the development of allergic diseases such as asthma, atopic dermatitis and food allergy.

Johns Hopkins scientists discover a controller of brain circuitry

Researchers used a classic staining method to observe how semaphorin regulates the creation of synapses and their distribution in the brain involved in conscious thought. The discovery could have an impact on understanding early origins of neurological disorders like autism, schizophrenia, and epilepsy.

Immune cell activity linked to worsening COPD

A recent study by Michigan Medicine has found that dendritic cells, a type of immune cell, are more active in patients with severe COPD, leading to increased inflammation and disease progression. This research suggests that targeting dendritic cells may be a potential strategy for preventing COPD from worsening.

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Fruit fly neuron can reprogram itself after injury

Researchers have discovered that fruit fly neurons can rebuild themselves after injury, with a structurally and functionally different component replacing the damaged part. The study reveals a dynamic microtubule response, where dendrites convert to axons, offering potential avenues for understanding axon regeneration.

UC Davis researchers visualize formation of a new synapse

Researchers at UC Davis have visualized the formation of a new synapse using neuroligin, a protein linked to autism. The study reveals the dynamic process of molecule recruitment, showing how neuroligin stabilizes adhesion between neurons and recruits other proteins important for synapse function.

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Protein regulates movement of mitochondria in brain cells

Scientists identified a protein that regulates mitochondrial movement in brain cells, shedding light on how the brain recovers from stroke. Understanding this mechanism may help identify novel approaches for preventing and treating neurological disorders.

Computer simulation captures immune response to flu

Researchers have developed a new computer simulation model that captures the human immune response to influenza type A, predicting treatment design and pandemic preparedness. The model reveals that drugs and vaccines targeting dendritic cell presentation of antigens have a significant impact on patient outcomes.

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Study reveals current multicomponent vaccines may need reworking

Researchers discovered a new mechanism that affects the immune system's ability to respond to certain vaccine components. The study found that low-stability peptide:MHC class II complexes support initial T cell expansion, but competitive responses to immunodominant peptides stall the response.

Peregrine's PS-targeting antibodies highlighted in AACR Annual Meeting studies

Preclinical studies highlight PS-targeting antibodies' ability to reverse immune suppressing effects of tumors, change tumor microenvironment, and mobilize immune cells. These findings suggest that PS-targeting antibodies facilitate a cytokine shift in the tumor environment, encouraging multiple types of immune system cells to mount an...

Autopilot guides proteins in brain

Researchers discovered a sorting mechanism that filters proteins into dendrites and axons, enabling finer control over neurons. The study's findings may enable more precise targeting of neurological disorders and basic research applications.

Scientists show how a neuron gets its shape

Researchers used microscopy to study neuron growth in Caenorhabditis elegans and found that certain neurons work backward from their destination. The discovery suggests that the brain is wired based on connectivity rather than absolute distance, providing an explanation for how the brain grows in proportion to the organism.

Dendritic cells ensure immune tolerance

Research suggests that dendritic cells are essential for generating and maintaining immunological tolerance. Without these cells, the immune system fails to distinguish between self and foreign substances, leading to autoimmune responses. This study highlights the critical role of dendritic cells in protecting against autoimmune diseases.

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New origin found for a critical immune response

Duke researchers found that a blood-derived lymph node dendritic cell type plays a key role in developing acute T-cell responses. This discovery challenges traditional views on dendritic cell function and has implications for vaccine science and autoimmune disease therapy development.

Vitamin A signals offer clues to treating autoimmunity

Scientists have discovered a compound called zymosan that can respond to two different receptors in dendritic cells, sending both stimulatory and calming messages. This finding could guide the development of vaccines against infectious agents and potentially boost the immune system's ability to fight chronic infections.

Good bacteria can be EZ Pass for oral vaccine against anthrax

Scientists at North Carolina State University have found that Lactobacillus acidophilus can deliver vaccines into the small intestine, where they trigger an immune response. The approach could potentially be used to create oral vaccines for other viruses and pathogens.

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Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Molecule that suppresses immune response under study in type 1 diabetes

Researchers aim to teach the immune system to ignore insulin-producing cells by boosting IDO levels. By enhancing this natural mechanism, they hope to slow or prevent disease progression in high-risk children. A new treatment approach could provide a breakthrough in preventing type 1 diabetes.

New discovery may lead to new class of allergy drugs

Researchers identify eotaxin as a novel target for new class of allergy medications, which may help alleviate symptoms of asthma and other allergies. The study's findings could lead to breakthroughs in understanding the severity of allergic reactions and developing effective treatments.

Scans show immune cells intercepting parasites

Researchers identified a key role for dendritic cells in responding to Leishmania parasites, which cause illness in developing nations and have been detected in US soldiers. The study provides insights into the early stages of the immune response and has implications for vaccine development.

Immune cells reveal fancy footwork

Dutch biologist Suzanne van Helden discovered that immune cells lose their adhesive feet before migrating to lymph nodes, allowing them to move faster. This process enables mature dendritic cells to quickly activate T cells and tackle infections.

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