Articles tagged with Circulatory System
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.
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.
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.
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.
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.
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.
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.
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.
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.
A study led by UC San Francisco found that homeless individuals have a 7 times higher rate of sudden cardiac death compared to the general population. Non-cardiac causes, such as overdoses and unrecognized infections, are more common among homeless people.
The study reveals that NO forms a new compound, NO-ferroheme, which significantly expands blood vessels and directly activates guanylyl cyclase. This finding challenges the long-held hypothesis on nitric oxide signalling in blood vessels.
A large Kaiser Permanente study found that moderate aortic stenosis patients have similar outcomes to those with mild stenosis. Fine-tuning physician assessment could help identify patients who may benefit from surgery, improving treatment strategies.
A pilot study reveals microplastics in heart tissue samples from patients undergoing cardiac surgery, with evidence suggesting direct introduction during procedures. The findings suggest various microplastics can accumulate and persist in the heart's innermost tissues.
Research presented at ENDO 2023 found women with PCOS died 47% earlier than those without the condition. They were also at higher risk for deaths due to cardiovascular disease, tumors, diabetes, and lung infections.
Researchers found altered serotonin 2A/C receptor binding in brain stems of infants who died from SIDS, suggesting a biological basis for the condition. The study suggests that specific combinations of genetic vulnerability, external stressors, and critical developmental periods may contribute to SIDS.
Research finds military veterans exposed to low doses of chemical warfare agents have higher rates of mortality from genitourinary diseases and deaths attributable to alcohol. However, overall cancer incidence is not significantly associated with Porton Down attendance.
A team led by Professor Timo Betz has developed a 3D cell culture chamber to grow muscle and other tissue using high-resolution microscopy. The new system will enable scientists to mimic the mechanical situations that confront various living tissues in serious conditions, reducing animal testing and costs.
Researchers review current treatment updates for systemic light chain (AL) amyloidosis, highlighting the need for early diagnosis and effective maintenance therapy. The article discusses the relationship between AL amyloidosis and monoclonal gammopathy of undetermined significance (MGUS), emphasizing the importance of regular monitoring.
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 remote hypertension program, operated by Mass General Brigham, successfully supported patients through the COVID-19 pandemic in achieving their blood pressure goals. Participants who enrolled during the pandemic reached and maintained their goal blood pressures an average of two months earlier than in the pre-pandemic period.
A virtual care team consisting of physicians and pharmacists improved the adoption of life-saving therapies in patients with heart failure, leading to increased use of evidence-based treatments and better patient outcomes. The strategy was safe and effective, with comparable length of stay and safety events between the groups.
High-dose anticoagulation reduces intubations and deaths by 30% in hospitalized COVID-19 patients, especially those with ARDS. The study found a significant reduction in mortality and need for ICU care among patients treated with therapeutic anticoagulation.
Researchers developed a microfluidic model of vascular malformation caused by PIK3CA mutation, allowing them to study disease mechanisms and test treatment efficacy. The model successfully replicated the disease's manifestations and responded to alpelisib, a newly approved PIK3CA inhibitor.
Research suggests that oleic acid in olive oil has antioxidant properties, inhibiting the expression of proteins associated with cholesterol transport, and reducing atherosclerosis. Additionally, oleic acid is recognized as an anti-cancer molecule, which also displays hypocholesterolaemic effects and may influence epigenetic mechanisms.
Researchers at the University of Missouri have designed a soft and breathable material that can be worn on the skin without causing discomfort. The material, made from liquid-metal elastomer composite, has integrated antibacterial and antiviral properties to prevent the formation of harmful pathogens.
Researchers at Duke University discovered that glassfrogs store nearly 90% of their circulating red blood cells in their liver when they want to be transparent. This helps them blend in with their surroundings and avoid predation during the day.
Researchers at the University of Missouri are developing a wearable heart monitor using a breathable material with antibacterial and antiviral properties. The device will track heart health via dual signals, providing continuous monitoring for early detection of heart disease.
A study of over one million Medicaid beneficiaries found that more than half experienced significant lapses in coverage, with only 25% continuously enrolled throughout the period. The authors recommend increasing investments to improve long-term health outcomes.
A novel screening tool has been developed to diagnose a serious heart condition in young athletes. The tool uses non-invasive ultrasound techniques to accurately identify cardiomyopathy, reducing false positives and providing better protection for the athletes of tomorrow.
Researchers at Osaka University have developed a mouse model that shows Favine protein can protect against atherosclerosis and thrombosis. The study also found that reduced levels of Favine are associated with calcification and thrombus formation, revealing a new potential therapeutic target for treating atherosclerosis.
Researchers have discovered that mutations causing Duchenne muscular dystrophy slow electrical activity in the heart, leading to abnormal heart rhythms. This finding may help explain why up to 60% of DMD patients experience life-threatening heart rhythm abnormalities and could lead to new treatment strategies.
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.
The American Journal of Roentgenology has published best practices for managing an iodinated contrast media (ICM) shortage in radiology practices. To mitigate the shortage, practice leaders should prioritize examination findings and reduce overall ICM usage.
A flying intervention team deployment was significantly associated with shorter time to endovascular thrombectomy, supporting consideration for some stroke systems of care. The findings may need further research to confirm long-term clinical outcomes and applicability in other geographic settings.
A new study published in the European Heart Journal shows that MRI is superior to echocardiography for diagnosing heart failure and predicting patient outcomes. The research found that MRI can accurately measure left ventricular filling pressure, leading to improved diagnosis and reduced need for invasive assessments.
Researchers found that post-COVID patients displayed altered autonomic nervous system functioning, with increased sympathetic activity and decreased parasympathetic activity. Obesity and physical inactivity were key factors contributing to these changes.
Research finds a strong association between retinal age and real age, with large gaps associated with increased mortality risk. The 'retinal age gap' could be used as a screening tool to predict mortality risk, particularly for non-cardiovascular causes.
A new imaging technique can detect early signs of blood trauma in red blood cells, which could aid in the development of markers to prevent damage. The technique, developed by researchers at Shibaura Institute of Technology and Griffith University, uses high-speed cameras to visualize changes in RBC shape under stress.
A new meta-analysis published in the European Journal of Preventive Cardiology suggests that Sodium-glucose co-transporter-2 (SGLT2) inhibitors can improve outcomes for heart failure patients with preserved ejection fraction. The medication has been shown to reduce the risk of death from heart-related causes and hospitalization by 22%.
Researchers at GIST create an optical technique called optical speckle image velocimetry that can image dynamic changes in cerebral blood flow, allowing for the diagnosis of brain health. The technique provides high-time resolution and measures both speed and direction of blood flow.
Researchers from Aarhus University have developed a revolutionary technique to identify pathogenic particles in the blood, which determine the development of autoimmune diseases like Systemic Lupus Erythematosus. The technique allows for early diagnosis and potentially life-threatening consequences such as blood clots and organ damage.
Exercise with face masks or respirators can cause detrimental effects on the cardiovascular system, including cardiac arrhythmias and spontaneous pneumothorax. Masks designed for runners with minimal oxygen deficiency side effects are recommended for high-risk individuals.
A patented technology monitors stroke survivors' health parameters from the brain and cardiovascular system. Post-stroke rehabilitation starts instantly after medical stabilization, with a high risk of second strokes within 4 years.
A new metabolism regulation system was found in brown adipose tissue using the kallikrein-kinin hormonal system, which can help prevent damaging effects of excessive activation. This discovery could lead to strategies for moderating thermogenic activity in pathological situations like cancer.
The study examines coronavirus disease 2019's (COVID-19) effects on the cardiovascular system, revealing potential long-term consequences. Researchers highlight the need for further investigation into the relationship between coronaviruses and cardiovascular health.
The American grasshopper's circulatory system responds dramatically to changes in body position due to gravity, affecting blood and air distribution. Physiological compensation mechanisms similar to vertebrates suggest an ancient, widespread response to gravitational forces.
A clinical trial called GutHeart Trial examines the relationship between gut bacteria and heart failure, testing antibiotic, probiotic yeast, or no treatment on patients with heart failure. The study aims to develop new treatment strategies and better understand how gut leakage affects inflammatory processes and heart failure.
Researchers discuss traditional Chinese medicine approaches for cardiovascular disease, including acupuncture, moxibustion, Qigong, and Tai Chi. They highlight the need for modern TCM research into active ingredients and their applications.
Researchers present a case study on ischemic secondary mitral regurgitation, highlighting the importance of multidisciplinary teams in managing this complex condition. Newer technologies provide new hope for patients, improving outcomes and treatment options.
A new family of earthworms, Kazimierzidae, has been established for a South African genus with an exclusive circulatory system. The species are restricted to small areas along the western and south-western Atlantic coast of South Africa.
Katerina Akassoglou, a Gladstone Senior Investigator, has been awarded a $5.8M NINDS grant to advance her research on the role of brain's vascular and immune systems in neurological diseases. The grant will enable her lab to pursue innovative solutions for devastating conditions like multiple sclerosis.
Research shows that cane toads can adapt well to rising temperatures, with their oxygen transport system becoming more efficient as heat rises. The findings contradict previous studies suggesting a decrease in efficiency at high temperatures, and may have implications for other anurans.
A new study from Cornell University finds that adolescents exposed to chronic risk factors experience stress-induced physiological strain, but with responsive mothers, this toll is significantly reduced. The study also reveals that cardiovascular systems of youths are compromised regardless of their mothers' responsiveness.
New research highlights the impact of concurrent health problems on older adults, with 24% of Medicare beneficiaries aged 65+ and 31.4% of those 85+ having multiple comorbidities. The study aims to improve understanding of comorbidity and develop a comprehensive nosology for classification.
Women undergoing drug-induced labor have nearly a two-fold increased risk of amniotic-fluid embolism, a rare but serious delivery complication. The study found that labour induction increases the risk of this condition, with fatal cases being 3.5 times more frequent.
Researchers found that misdiagnosed electrocardiographic artifact, caused by body movement or poor contact, led to unnecessary procedures like pacemaker implants and heart catheterization. The study highlights the need for improved training in recognizing artifact and increased awareness among physicians.
Researchers at the Brain Attack Team (BAT) are developing Tele-BAT, a system that enables remote evaluation of stroke patients via video, cellular telephone, and computer technology. This allows for faster diagnosis and treatment, as it can provide valuable information to emergency rooms before patients arrive.
The University of Maryland Medical Center has implemented a telemedicine system to assess stroke patients in real-time during ambulance rides, reducing evaluation time by up to 20 minutes. This technology enables the transmission of blood analysis, vital signs, and neurological symptoms to doctors' computer screens.
A new system, Home Health Monitor, developed by Dr. Boaz Avitall, closely monitors congestive heart failure patients in their homes, resulting in fewer readmissions and lower healthcare costs. The system detects complications early and makes patients feel secure, reducing hospitalization rates.