Articles tagged with Dissection
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.
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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 new study published by the American Academy of Neurology has found a nearly five-fold increase in U.S. hospitalizations for cervical artery dissection between 2005 and 2019. The study, which analyzed 125,102 hospitalizations, found that rates rose steadily year-over-year, with significant increases among certain racial groups.
Researchers found the woman was embalmed with costly imported ingredients, contradicting traditional beliefs about mummification. The study also revealed she suffered from arthritis and had a unique facial expression that may be attributed to a cadaveric spasm caused by intense pain.
A team of visionaries at the Carney Institute developed 3D-printed brain and spinal cord implants, revolutionizing surgical implantations and optical access. Bioluminescence imaging overcomes limitations of traditional fluorescent microscopy, providing unprecedented observation of neural and vascular activity.
Scientists have developed a functional model of thoracic aortic aneurysm using human cells in laboratory rats, offering new avenues for drug development and effective screening. The model successfully mimics dilation of the human aorta and has potential applications for treating this potentially fatal condition.
A study analyzing canned salmon from 1979 to 2021 found stable anisakid worm levels in coho and sockeye salmon, while pink and chum salmon showed a rise. This suggests that the marine food web has adapted to changing conditions, with rising parasite levels indicating potential ecosystem shifts.
A recent study found that a stroke or combined with a neck artery tear significantly increases the risk of heart attack within a year. The researchers analyzed health data from over 800,000 adults and discovered that carotid or vertebral artery dissections without a stroke do not raise heart attack risk.
Researchers developed a suite of free tools for analyzing vast amounts of brain dissection photographs, enabling the extraction and integration of quantitative information. The tools allow for the reconstruction of 3D brain images from biobank photos, providing valuable insights into neurodegenerative diseases.
A UCLA-led team has discovered the nerve supply that activates brown adipose tissue, a potential key to treating obesity. The study found nerve branches in all eight cadavers dissected, which may lead to using nerves to stimulate BAT activity for weight loss.
Researchers highlight the need for effective treatment strategies for adenoid cystic carcinoma (ACC) of the head and neck, which is a highly malignant tumor with variable localizations. Proton therapy shows decisive advantages in long-term survival rates for ACC.
In a groundbreaking procedure, Adriana Rodriguez received a dual-organ transplant, with her healthy liver transplanted into another patient to mitigate rejection risk. This innovative approach, known as HALT-D, demonstrates the potential for immunoprotection and has implications for highly sensitized patients requiring multiple organs.
Researchers, led by Elizabeth King, aim to develop a knowledge base on complex genetic traits using fruit fly models. The project seeks to address the scientific knowledge gap in this field by focusing on interconnectedness among multiple factors.
A study explores the link between shark nose shape, size, and sensitivity of smell. The researchers found that more lamellae in rosettes with an elongated shape are associated with increased odor sensitivity.
A large Kaiser Permanente study found that most patients with a thoracic aortic aneurysm less than 5.5 cm are not at high risk of experiencing dissection or requiring surgery. The study's findings support the current consensus guidelines recommending surgery for patients with larger aneurysms.
A study published in JAMA Cardiology found that the mortality rate for patients with a torn aorta has decreased significantly, from 37% in the 1950s to nearly 6% today. However, patients who did not receive surgery died at a rate five times higher than those who underwent treatment.
The American Association for Anatomy (AAA) has published a special issue of The Anatomical Record examining its complex history and addressing structural racism and questionable ethics. The issue proposes recommendations for creating an inclusive future for the field.
Researchers developed a novel method of measuring aortic growth, called vascular deformation mapping, which outperforms standard manual rating methods. The technique uses high-resolution CT imaging to calculate three-dimensional changes in the aortic wall, achieving an accuracy of less than 1 millimeter.
Researchers at WVU are studying the Musashi proteins to understand their role in retinal degeneration and develop a universal therapy. By investigating protein translation and gene suppression, they hope to identify potential pathways to boost protein production and slow vision loss.
Researchers found Prozac reduces lipid concentrations in monkey brains, linked to potential side effects in young patients. The study suggests dietary changes may alleviate adverse effects by influencing lipid synthesis.
Women are more likely to experience acute aortic dissection with older age and different presenting symptoms, leading to delayed diagnosis and treatment. The study highlights the need for sex-directed strategies to improve outcomes in female patients.
Researchers discovered a species of ascidian capable of regenerating its entire body system after being dissected into three fragments, defying expectations. The animal's ability to regenerate organs is rare among chordates, making it an exciting finding for understanding tissue renewal.
A multicenter study found that aspirin was not equally effective as blood thinners in treating cervical artery dissections. The international study showed a higher risk of problems with aspirin treatment compared to anticoagulation.
Researchers have identified certain features of a patient's tumor that can predict whether axillary lymph node dissection is necessary, sparing women from disabling arm swelling. A UCLA study found over 40% of women with lymph node involvement at diagnosis have only 1-3 positive nodes at surgery.
The latest issue of Cardiovascular Innovations and Applications (CVIA) features research articles on COVID-19, including a study predicting death in severe patients. The journal also publishes papers on the impact of ventricular pacing and Marfan syndrome diagnosis.
Researchers studied aortic dissections in pregnant women, finding 19% associated with pregnancy and increased risk of Type A dissections. The study highlights the importance of careful monitoring of cardiac conditions during pregnancy.
A statistical approach analyzing 14,912 Western paintings reveals spatial composition patterns that can distinguish between artists and style periods. The study found that compositional features shifted over time, with dominant horizons changing in location during the Rococo, Romantic, Realism, Impressionism, and 20th century periods.
A genome-wide association study identified specific genetic regions associated with SCAD, which also predict the risk of SCAD among individuals with fibromuscular dysplasia. The findings suggest a shared genetic basis for migraine headache and SCAD, highlighting the need for further research into its clinical implications.
Dr. Mitinori Saitou has made groundbreaking contributions to understanding mammalian germ cell development and reproduction in vitro. His work has enabled the generation of functional gametes from pluripotent stem cells and improved germ-cell technology.
A systematic review of 631 pregnant women with Marfan Syndrome found an estimated 5.3% prevalence of acute aortic dissections during or after pregnancy. Conservative management with beta-blockers is recommended for type B dissections, while emergency surgical intervention is indicated for type A dissections.
A team of geophysicists from LMU München used simulations to study the 2016 Kaikoura earthquake, which ruptured over 20 fault segments. The model showed that a weakly loaded fault was boosted by gradual slippage and low frictional resistance.
The International Registry of Acute Aortic Dissection (IRAD) has gathered data from 9,000 patients, revealing nearly 90% of type A dissections now receive surgical repair. In-hospital mortality is down to 16.3%, and five-year survival remains around 85%. IRAD also shows improved outcomes for type B dissections with endovascular therapy.
Two studies found that flu-like illnesses increase the odds of having a stroke by nearly 40 percent over the next 15 days. Researchers also identified an increased risk of tearing neck arteries within one month of battling a flu-like illness.
A new study published by the European Society of Cardiology has investigated the major cause of heart attacks in women, finding that spontaneous coronary artery dissection (SCAD) is a leading factor. The study also identified emotional stress as a key trigger for SCAD, which can lead to narrowing, aneurysms, or tears in the arteries.
Research reveals that routine screening and genetic testing can identify up to 30% of relatives with an underlying genetic predisposition to developing life-threatening aortic diseases. This could lead to earlier detection and potentially save lives.
A study found that ciprofloxacin exposure accelerates the progression of aortic diseases in mouse models. The antibiotic disrupts the extracellular matrix, leading to cell death and tissue damage.
A team of researchers has developed an ontology-based system to automate blunt dissection using the da Vinci surgical robot. The algorithm uses stereo endoscopic camera image feed and achieves high accuracy on feature-rich objects, with promising results for future integration into current surgical workflows.
Researchers found a significant increase in hospitalizations for aortic dissection and ST-Elevation Myocardial Infarctions (STEMI) during winter months. The studies, presented at the SCAI 2018 Scientific Sessions, used the Nationwide Inpatient Sample database to analyze seasonal variations in cardiac-related hospitalizations.
Patients presenting with high specificity and positive likelihood ratio for acute aortic dissection should be suspect. Findings such as hypotension, pulse deficit, or neurologic deficit are key indicators of the condition.
Acute aortic syndrome is a group of conditions that can be challenging to diagnose due to similar clinical manifestations. Intravascular ultrasound imaging has been found to be useful in discerning the different forms of acute aortic syndrome, including aortic intramural hematoma.
A recent study published in Academic Emergency Medicine found that patients with one or more high-risk clinical features are at high risk for acute aortic dissection. The study also identified that patients with no high-risk and multiple low-risk features are at low risk for the condition.
Researchers identified four fundamental building blocks for all proteins, which can be stacked together to form energy-rich molecules available to humans and other living organisms. The discovery could lead to applications in biomedical engineering, therapeutic proteins, and industrial catalysts.
TU Graz is awarding €2 million to the 'Mechanics, Modeling and Simulation of Aortic Dissection' project and €1.5 million to the 'Porous Materials @ Work' project to advance research in biomechanics and materials sciences. The funding will support the development of simulation models and algorithms to diagnose and treat aortic dissections.
A study of 2,485 patients with ischemic stroke found a higher incidence of migraine among those with cervical artery dissection (CEAD), particularly in men and younger patients. The research suggests considering migraine as a marker for increased risk of CEAD-related ischemic strokes.
A new study from PETA finds that 63% of US public schools allow students to opt out of animal dissection. Non-animal teaching methods have been shown to teach biology better and save time and money. The study's findings support the growing trend towards compassionate education, backed by the National Science Teachers Association.
Historical research reveals that foetus and infant cadavers were valued by anatomists for studying growth and development, often kept in museums. Researchers found that anatomists preserved the skulls of infants intact to use as teaching aids, differing from adult cadavers.
The June 2016 issue of Vascular Medicine explores the latest developments on aortic disease, medical technological advances, and treatment options. Original research articles and reviews highlight the mechanisms of aortic pathology and novel indices for thoracic aortic size.
Scientists describe a new Australian land snail species using micro-computed tomography, creating a 3D model of the genitalia without damaging the specimen. The novel method allows for species delimitation and identification of molluscs with reduced dissection, highlighting its potential as an alternative approach.
Advanced PET-CT scans have enabled the identification of remaining cancer cells after treatment, allowing for targeted surveillance and reducing the need for unnecessary neck dissection surgeries. This innovative approach has shown significant cost savings and improved patient outcomes.
A new species of leech from Australia has been named Chtonobdella tanae in recognition of best-selling author Amy Tan. Using computed tomography (CT) scanning, researchers were able to describe the internal anatomy of a soft-bodied animal for the first time.
A study published in Gastrointestinal Endoscopy found ESD to be a safe and effective treatment for superficial pharyngeal cancer, achieving an en bloc resection rate of 100% and complete resection rate of 79.5%. The procedure showed minimal side effects, with a three-year overall survival rate of 97.7%.
Neurosurgeon authors establish a surgical skills laboratory and dissection curriculum for resident education, improving surgical skills and understanding of anatomical relationships. The program has been implemented at the Cleveland Clinic, providing a comprehensive training environment and enhancing future standards in surgical training.
A study comparing OCT and IVUS guidance found that OCT-guided stents had greater in-segment percent diameter stenosis but similar major edge dissection and malapposition rates compared to IVUS-guidance. The results suggest that OCT-guidance is a viable alternative to IVUS for guiding percutaneous coronary interventions.
Researchers studied flies' response to shadows, finding that they display persistent defensive behavior, generalizable across contexts. The study suggests that flies may help understand the fundamental neurochemistry of fear and emotions.
Cardiothoracic surgeons are stepping back as vascular specialists play a larger role in managing patients with Type B aortic dissections. Advances in minimally invasive endovascular surgery have driven this shift.
A 4-year-old boy experienced a stroke after riding roller coasters, likely caused by a tear in his carotid artery. The incident highlights the risk of carotid artery dissection in children due to sudden movements. Previous reports have mostly focused on adult riders, making this case one of the youngest reported.
Researchers map out 'safe entry zones' for brainstem surgery using fiber tract dissection techniques and 3D photography. The study provides unprecedented descriptions and images of the inner anatomy of the brainstem, helping neurosurgeons plan the best approach to microsurgical procedures.
Researchers have discovered a gene variant, PHACTR1, that reduces the risk of cervical artery dissection and other related conditions. This finding could lead to new treatment strategies for stroke prevention in young adults.
Hospital admissions for acute aortic dissection increased during peak flu season in the US, according to research. Researchers found a notable correlation between flu activity and AAD admissions from 2001-2013.
Researchers confirmed a genetic variant linked to significantly increased risk of aortic dissection or full rupture. Patients with the mutation may benefit from earlier surgical therapy before an aortic dissection occurs.
A 3D model of Henry Molaison's (H.M.) brain has been created, providing new insight into the neurological basis of his severe amnesia. The study reveals a small lesion in the left orbitofrontal cortex that was likely created during H.M.'s 1953 surgery, which may help scientists understand the consequences of similar operations today.
A multi-institutional team has found a recurrent genetic mutation, PRKG1, linked to thoracic aortic dissections in families with young members. The mutation causes muscle cells in the aorta wall to respond incorrectly to blood flow, leading to aneurysms and acute dissections.