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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

Low vitamin D levels and depression linked in young women, new OSU study shows

A new OSU study found that young women with lower levels of vitamin D were more likely to experience clinically significant depressive symptoms over a five-week period. The results suggest a potential link between vitamin D deficiency and depression, highlighting the importance of maintaining adequate vitamin D levels for overall health.

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High levels of vitamin D is suspected of increasing mortality rates

Researchers at the University of Copenhagen have found a correlation between high levels of vitamin D and an increased risk of cardiovascular deaths, including strokes and coronary deaths. The study suggests that levels above 100 nanomol per liter may be detrimental to health.

Omega-3 fatty acids and vitamin D may control brain serotonin

Research suggests that omega-3 fatty acids and vitamin D can regulate brain serotonin production, influencing behavior and psychiatric disorders. Serotonin affects cognitive functions and behaviors, with low levels linked to conditions such as autism and ADHD.

Low vitamin D predicts more severe strokes, poor health post-stroke

Research found that patients with low vitamin D levels suffered larger areas of dead tissue resulting from obstruction of the blood supply compared to those with normal levels. Additionally, a 10 ng/mL reduction in vitamin D level was associated with a decreased chance for healthy recovery after stroke

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Low childhood vitamin D linked to adult atherosclerosis

A new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that low childhood vitamin D levels are associated with increased carotid intima-media thickness and subclinical atherosclerosis in adulthood. The study, which analyzed 2,148 subjects from the Cardiovascular Risk in Young Finns Study, ...

Sunlight and vitamin D levels higher for coastal populations

A new study published in Environment International found that people living near the coast in England have higher vitamin D levels than those inland. The research linked sunlight data to vitamin D levels, revealing a strong correlation between coastal living and improved vitamin D levels.

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Vitamin D deficiency, depression linked in international study

Researchers found a link between vitamin D and seasonal affective disorder (SAD), suggesting vitamin D may play a regulatory role in SAD development. Vitamin D levels fluctuate seasonally with sunlight availability, which correlates with the onset of SAD symptoms.

Vitamin D reduces lung disease flare-ups by over 40 percent

A new study from Queen Mary University of London found that vitamin D supplements can significantly reduce the risk of COPD flare-ups in patients with a vitamin D deficiency. The trial, which included 240 patients, showed a 40% reduction in flare-ups among those who received vitamin D supplements.

News from Annals of Internal Medicine Supplement

The US Preventive Services Task Force concludes that current evidence is insufficient to assess the benefits and harms of routine screening for vitamin D deficiency. Researchers found no direct evidence on the effects of screening versus no screening, but treating patients with low serum levels may help prevent adverse outcomes.

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Low vitamin D levels increase mortality

A recent Danish study establishes a causal relationship between low vitamin D levels and increased mortality, with a 30% higher risk of cancer-related deaths. Vitamin D deficiency is often associated with poor bone health, but this study highlights its role in other diseases and mortality rates.

Obesity plays major role in triggering autoimmune diseases

A recent Tel Aviv University study found that obesity leads to a breakdown of the body's protective self-tolerance, creating an environment for autoimmune diseases. The research also highlights the importance of vitamin D supplements in alleviating symptoms and improving prognosis for patients with multiple sclerosis.

New study will track factors in early menopause

Researchers are conducting a comprehensive study to investigate the link between various factors and early menopause. The study will examine biochemical, reproductive, dietary, and lifestyle factors to determine their association with the risk of early menopause.

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Breathe easier: Get your D

Researchers found that Vitamin D-deficient asthmatics are at a higher risk of an asthma attack and that boosting levels may help manage acute episodes. The study analyzed medical records of nearly four million people and found significant immunomodulatory effects of Vitamin D on asthma.

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Modified vitamin D shows promise as treatment for pancreatic cancer

Researchers found that a synthetic derivative of vitamin D can collapse the barrier of cells shielding pancreatic tumors, making them more susceptible to therapeutic drugs. Human trials are underway for pancreatic cancer, and the findings may have implications for other tough-to-treat tumors.

Study: Widespread vitamin D deficiency in thyroidectomy patients

Researchers at Henry Ford Hospital found 40% of thyroidectomy patients to be vitamin D deficient prior to surgery. Vitamin D supplementation may improve surgical outcomes and shorten hospital stays for these patients. The study highlights the importance of routine vitamin D level checks in thyroid surgery patients.

Low vitamin D levels linked to increased risks after noncardiac surgery

Patients with low vitamin D levels are at increased risk of death and serious complications after noncardiac surgery. Higher vitamin D concentrations were associated with decreased odds of in-hospital mortality/morbidity, but the association was only statistically significant for cardiovascular complications.

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Link between vitamin D and dementia risk confirmed

A recent study published in the medical journal Neurology has confirmed a substantial link between vitamin D deficiency and an increased risk of dementia and Alzheimer's disease in older adults. The research found that participants with severe vitamin D deficiency were more than twice as likely to develop dementia and Alzheimer's disease.

Study: Link between vitamin D and dementia risk confirmed

A study published in Neurology found that low vitamin D levels double the risk of developing dementia and Alzheimer's disease in older people. Researchers analyzed blood levels of vitamin D and found a significant association between low vitamin D levels and increased dementia risk.

Vitamin D deficiency raises risk of schizophrenia diagnosis

A new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that individuals with schizophrenia have lower levels of vitamin D than healthy people. People with vitamin D deficiency are 2.16 times more likely to have schizophrenia, highlighting a potential connection between vitamin D and psychi...

Sunshine vitamin ups bowel cancer survival odds, study finds

A new study by the University of Edinburgh has found that bowel cancer patients with high levels of vitamin D in their blood are more likely to survive the disease. Patients with the highest levels of vitamin D have half the risk of dying compared to those with the lowest levels, according to the research.

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In human evolution, changes in skin's barrier set Northern Europeans apart

Researchers question long-held theory that Northern Europeans developed light skin for vitamin D production. Instead, genetic mutations compromising the skin's barrier function enabled survival at higher latitudes. High rates of filaggrin mutations in Northern European populations correlate with increased vitamin D levels.

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Vitamin D can lower weight, blood sugar via the brain

A study found that vitamin D treatment improved glucose tolerance and insulin sensitivity in obese rats, reducing food intake and weight. The findings suggest a potential role of vitamin D in the onset of obesity and Type 2 diabetes through its action in the brain.

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Lower vitamin D level in blood linked to higher premature death rate

Researchers found that persons with lower blood vitamin D levels were twice as likely to die prematurely as those with higher levels, regardless of bone disease risks. The study supports previous findings on low vitamin D being hazardous and provides reassurance on safe dosing up to 4,000 IU/day.

News from Annals of Internal Medicine tip sheet June 3, 2014

Colorectal cancer screening should continue beyond age 75 for previously unscreened patients, according to new guidelines. Practices that implement a patient-centered medical home model with electronic health records (EHRs) have shown improved quality of care compared to non-PCMH practices.

Vitamin D supplementation does not improve asthma treatment, symptoms

A new study found that vitamin D supplementation did not reduce the rate of treatment failure or exacerbation of symptoms in adults with persistent asthma and low vitamin D levels. The study suggests that therapeutic vitamin D3 supplementation may not be an effective strategy for improving outcomes in patients with symptomatic asthma.

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Study finds limited benefit for vitamin D in asthma treatment

Research at Washington University School of Medicine found that vitamin D supplements had a limited benefit for asthma treatment. Patients who achieved sufficient blood levels of vitamin D showed improved asthma control, including reduced treatment failures and asthma attacks.

Vitamin D deficiency may be linked to aggressive prostate cancer

A study found that vitamin D deficiency was associated with aggressive prostate cancer diagnosis and tumor progression in both European-American and African-American men. Lower levels of 25-hydroxyvitamin D (25-OH D) were linked to higher odds of having aggressive prostate cancer and faster disease progression.

Vitamin D deficiency linked to aggressive prostate cancer

A new study from Northwestern Medicine and the University of Illinois at Chicago finds that vitamin D deficiency is a predictor of aggressive forms of prostate cancer diagnosis in African-American and European-American men. Regular screenings for vitamin D deficiency could be crucial to prevent advanced tumor progression.

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Low vitamin D may not be a culprit in menopause symptoms

A new study from the Women's Health Initiative found no link between low vitamin D levels and menopause symptoms, including hot flashes, night sweats, and sleep disturbances. The study analyzed data from 530 women participating in the calcium and vitamin D WHI trial.

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Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Study examines vitamin D deficiency and cognition relationship

A new study published in Journal of the American Geriatrics Society examines the relationship between vitamin D deficiency and cognitive impairment in older adults. The research found a strong association between low vitamin D levels and worse cognitive performance over time.

Low vitamin D linked to fatty liver disease in UK children

A UK study found a genetic variant associated with fatty liver disease severity in pediatric patients. Patients had low vitamin D blood levels throughout the year, and most samples were deficient or insufficient in vitamin D status compared to national health standards.

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

Rabbits kept indoors could be vitamin D deficient

Researchers at the University of Illinois have found that indoor rabbits can develop a vitamin D deficiency due to lack of UVB radiation exposure. This deficiency can lead to various health problems, including dental issues and weakened immune systems.

Study looks at why vitamin D deficiency diagnoses surged

New research from Wake Forest Baptist Medical Center suggests that physicians are ordering vitamin D deficiency screening tests for preventive care purposes. The study found that the number of diagnoses for vitamin D deficiency rapidly increased from 2007 to 2010, with older patients and females more likely to be diagnosed.