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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 pharmacological effect of Jianpi Huoxue Decoction

Researchers have confirmed that Jianpi Huoxue decoction inhibits targets in LPS-activated Kupffer cell signal pathway, reducing cytokine expression and endotoxin receptor activity. The study provides new evidence for JHD's potential therapeutic benefits for alcoholic liver injury.

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

A new breakthrough on the pathogenesis of fulminant hepatic failure

Research led by Dr. Yi-Jia Lou suggests that LTC4 synthesis enzymes contribute to liver injury in a rat FHF model, leading to accumulation of cys-LTs. The study's findings imply further investigation into the expression and activity of these enzymes in managing viral hepatitis patients.

Estrogen protects liver after traumatic injury

Research found that estrogen improves host response after traumatic injury and decreases liver enzymes associated with damage. The study identified the critical cell surface receptor, GPR30, involved in estrogen's protective effects on the liver.

UCSD researchers identify critical receptor in liver regeneration

Researchers at UCSD School of Medicine discovered a cellular receptor involved in triggering cell death is also necessary for tissue repair and regeneration after liver injury. p75 neurotrophin receptor promotes the initial activation of hepatic stellate cells to stimulate new hepatic cell proliferation.

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Conference examines latest research on drug-induced liver injury

The conference focused on idiosyncratic DILI, a rare form of liver damage caused by genetic and non-genetic factors. Researchers aim to develop diagnostic tools to identify patients at risk, with studies examining DNA, lymphocytes, and serum samples from patients who have experienced and recovered from idiosyncratic DILI.

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Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Predicting the outcome of drug-induced liver disease

A study analyzing reports of suspected drug-induced liver injury found that AST and bilirubin levels are key predictors of death or liver transplant in patients with severe drug-induced liver disease. Patients with hepatocellular liver damage had a higher mortality rate, highlighting the importance of monitoring these biomarkers.

UNC launches study of liver injury caused by drugs

The Drug-Induced Liver Injury Network (DILIN) will investigate patients who have suffered severe liver injury due to medications. The network aims to identify genetic risk factors for such injuries, which are a major cause of sudden liver failure and new drug failures.

Severe sleep apnea may be a risk factor for liver damage

A study published in Hepatology found that severe sleep apnea is a risk factor for liver damage, independent of body mass index. Patients with severe sleep apnea had higher levels of insulin resistance and fatty liver disease, suggesting a link between obstructive sleep apnea and the development of nonalcoholic steatohepatitis.

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Study shows grapefruit extract can heal stomach ulcers

Researchers found grapefruit seed extract accelerates ulcer healing by reducing gastric acid secretion and promoting blood flow at the ulcer site. The study suggests that grapefruit can be a beneficial addition to the diet for those with ulcers.

Nitrite says NO to ischemia/reperfusion injury

Researchers found that nitrite therapy reduces cell death and preserves organ function in mouse models of I/R injury. Nitrite may serve as a therapeutic treatment for I/R disease, particularly in preventing organ dysfunction following surgery or transplantation.

New ways to ease liver disease

Research reveals that IL-6 activates a pathway in liver cells that triggers protection against hepatitis and immune-mediated liver damage. Two proteins, KC and SAA2, play a crucial role in this protective effect.

Component of green tea protects injured livers in mice

The study found that EGCG protected fatty livers from cell damage after I/R injury, reducing necrosis and increasing viable tissue. It also reduced liver fat content by approximately 55 percent and increased hepatic energy stores.

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Serum caspase activity and liver fibrosis in patients with hepatitis C

Researchers found elevated caspase levels in HCV patients with normal aminotransferase levels, associated with higher stages of liver fibrosis. The study suggests that measuring caspase-mediated CK-18 cleavage in serum may be a more sensitive method to detect liver fibrosis in chronic HCV infection.

Annals of Internal Medicine tip sheet, September 16, 2003

A new set of guidelines aims to standardize reporting of medical guidelines, reducing misunderstandings among clinicians, patients, and reporters. Blood pressure pills have been found to lower hip fracture risk in older adults, but the protective effect disappears after four months without treatment.

Study finds increased risk of liver injury with some TB medications

A large-scale clinical trial found that patients treated with the two-drug regimen had a much higher rate of major liver injury compared to those taking isoniazid. The study confirms CDC recommendations for frequent monitoring of patients, highlighting the importance of laboratory testing to detect early liver injury.

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Annals of Internal Medicine, tip sheet, March 19, 2002

A study of 118 people with early Lyme disease found most had a red rash with central redness, not the traditional bull's-eye description. The patients' liver function returned to normal after treatment with antibiotics. Meanwhile, a case report describes pioglitazone causing liver damage in a diabetic patient.

DDR2 and hepatic fibrosis

Research has identified DDR2 as a key player in the development of hepatic fibrosis, a liver disease characterized by excessive scar tissue buildup. High levels of DDR2 expression have been linked to advanced fibrosis and poor patient outcomes.

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Time important in transporting critically injured to trauma centers

A new study finds that critically injured patients who arrived at trauma centers via private transportation had similar mortality rates, hospital stays, and complications as those transported by emergency medical services (EMS). However, they tended to arrive at the center more quickly following injury, which was associated with better...

Annals of Internal Medicine, tip sheet, January 18, 2000

Two case reports found that rosiglitazone, a new oral anti-diabetic drug, appeared to be associated with liver damage. In contrast, a large retrospective study on hepatitis C virus showed that infected individuals developed few liver-related illnesses, suggesting they may be at lower risk for progressive liver disease.

Alcohol researchers confirm molecular culprit of alcohol-induced liver damage

A study found that tumor necrosis factor-alpha (TNF-alpha) plays a crucial role in early liver damage caused by alcohol consumption. The researchers used gene knockout technology to show that TNF-alpha mediates the development of liver injury, leading to potential new drug therapies for conditions affecting millions of Americans.

Study confirms protein culprit in alcohol-induced liver disease

Scientists have identified TNF-alpha as a major contributor to early liver injury from long-term alcohol consumption, paving the way for new treatments. The study used gene knockout technology and found that mice lacking TNF receptors fared better on measures of liver injury after alcohol exposure.

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Results Of Poisoning Visible In Urine

Toxicologists have made a groundbreaking discovery that chemical compounds formed during the reaction of free radicals with human tissue can be detected in the urine within just a few days. This breakthrough has the potential to provide an earlier indication of the damaging effects of chemotherapy on cancer patients.

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New Link To Alcohol-Related Liver Damage Identified

Researchers at White River Junction Veterans Administration Medical Center and Dartmouth Medical School have found that more than one protein plays a major role in making acetaminophen toxic to the liver of rats administered alcohol. The study identified CYP3A as another culprit that may cause even more liver damage in individuals who ...