Articles tagged with Vascular Diseases
Researchers developed DiFC, a two-color diffuse flow cytometry system that detects rare cancer cells in the bloodstream without invasive methods. The technology provides insights into cancer progression and response to treatments by studying different subpopulations of cancer cells simultaneously.
Researchers at Texas A&M University developed vessel-chip technology to create a platform for preclinical drug discovery, reducing the need for animal testing. The system mimics human circulatory systems using tissue-engineered microfluidic devices.
A new study found that very early blood pressure lowering treatment can improve outcomes for patients with intracerebral hemorrhage, but worsen outcomes for those with ischemic stroke. Rapid diagnosis of the type of stroke is crucial in harnessing the benefits of this treatment.
Researchers at UC Santa Cruz discovered a secondary population of platelets that appears with aging, exhibiting hyperreactive behavior and unique molecular properties. This 'shortcut' pathway bypasses normal differentiation processes, producing problematic cells that can cause blood clotting diseases.
This study explored the preventative role of baicalein in hepatopulmonary syndrome development. Baicalein improved survival rates, reduced angiogenic protein levels, and enhanced glucose homeostasis in HPS rats. It also attenuated pathological angiogenesis in the liver and lungs.
Researchers aim to understand mechanisms behind high ADRD rates among MENA immigrants, a growing demographic. The study will investigate daily living, stress, genetics, brain health, and cognitive ability, using MRI-based imaging and cognitive assessments.
A new study found similarities in protein structures of Aβ and tau filaments between individuals with Alzheimer's disease and those with both conditions. This knowledge is crucial for understanding Alzheimer's disease in people with Down syndrome and assessing clinical trial inclusion.
Studies at the University of Gothenburg found a clear shift in arterial disease risks in diabetes, with decreases in central organ diseases like heart attack and stroke, but increases in peripheral vessel complications. Closer monitoring of long-term blood sugar levels can reduce peripheral arterial disease risk by 30-50%.
Researchers discovered two novel GNE gene mutations that may cause a rare blood disorder called macrothrombocytopenia. The mutations affect the synthesis of sialic acid, critical for brain development and angiogenesis. Further studies are needed to understand the mechanism underlying this disorder and explore therapeutic interventions.
A new study reveals concerning regional disparities in lower limb amputations caused by peripheral arterial disease, with the North of England experiencing the highest rates. The study highlights the urgent need to improve care and prevention strategies, particularly for people with diabetes.
A new study found that a viral infection can cause cognitive impairments by damaging the blood-brain barrier, leading to memory loss and learning difficulties. Researchers developed a gene therapy that stimulated the Wnt/beta-catenin pathway to prevent this damage and improve cognitive function in mice infected with SARS-CoV-2.
Researchers are developing minimally invasive techniques to repair and regenerate tissue in aortic aneurysms using actively targeted, drug-releasing nanoparticles. The team found that rod-shaped particles with high aspect ratios were selectively taken up by diseased endothelial cells, leading to improved therapy outcomes.
Researchers found a higher risk of heart disease or stroke among patients who stopped taking aspirin, but no significant difference in major bleeding risk. The study suggests that patients already safely taking aspirin may continue to benefit from its use without increased risk.
Researchers at the University of Manchester have developed new methods to simulate blood flow, enabling faster and more accurate modeling of vascular diseases. These advancements have the potential to transform medical treatment and device innovation, providing real-time insights during surgical procedures and improving patient outcomes.
Researchers discovered that consuming over 22% of daily calories from protein can lead to increased activation of immune cells contributing to atherosclerotic plaque formation. Leucine, an amino acid found in animal-derived foods, plays a disproportionate role in driving pathological pathways linked to atherosclerosis.
A new study by University of Toronto researchers found that quitting smoking significantly reduces the risk of death from vascular disease and cancer. Former smokers can expect to live up to six years longer after quitting, with benefits seen within just three years.
A randomized clinical trial of 1,680 patients with acute ischemic stroke due to large-vessel occlusion found no significant improvement in disability with adjunctive methylprednisolone. The study suggests that methylprednisolone may not be effective as an adjunct therapy after endovascular thrombectomy for this patient population.
Researchers at the University of Illinois have identified genomic regions associated with resistance to four diseases in corn: Goss's wilt, gray leaf spot, northern corn leaf blight, and southern corn leaf blight. The study found that multiple genes working together can provide durable resistance against different pathogens.
A team of scientists from the Beckman Institute has received a $3 million grant to develop diagnostic tools and imaging agents for the early detection of Alzheimer's disease. They will use a combination of PET and MRI scans to target smaller beta-amyloid peptides and other signs of neuroinflammation and oxidative stress.
Researchers develop nanoparticles that selectively bind to activated astrocytes and microglia cells in the hippocampus of Alzheimer's patients, demonstrating increased nanoparticle transport across the blood brain barrier with age. The study provides valuable insights into advancing nanoparticle-based drug delivery for treating neurode...
A study revealed that natto consumption significantly reduced atherosclerotic lesions in mouse models, altering intestinal microflora and regulating cytokine production. High vitamin K2 natto showed the most significant effect, decreasing pro-inflammatory cytokines while increasing anti-inflammatory IL-10 production.
Researchers develop a versatile imaging system for targeted spectroscopy in the eye fundus, allowing for continuous color imaging and spectral measurements. The system enables users to select targets and move them to any location within the eye fundus region without realignment or fixation changes.
Researchers developed a method to measure microvascular changes in the skin using AI and optoacoustic imaging technology, enabling non-invasive assessment of diabetes severity. The study identified 32 significant changes in blood vessels, which can be used to monitor disease progression.
A new stem cell treatment using mRNA technology from COVID-19 vaccines has shown promise in regenerating liver tissue, potentially reversing chronic and acute liver diseases. The treatment stimulates the natural repair mechanism of the liver by activating specific receptors on stem cells.
Researchers from Cornell and University of Alberta have developed an under-the-skin implant that can secrete insulin without immunosuppression. The approach offers an easier alternative to traditional transplants or insulin injections, with the potential for long-term management of Type I diabetes.
The November issue of CHEST journal features cutting-edge research on asthma, COPD, diffuse lung disease, and thoracic oncology. A new guideline provides updated recommendations for patients with stable COPD, while home spirometry is shown to be less consistent than clinic spirometry in monitoring lung function in patients with asthma.
A team at Weill Cornell Medicine mapped the location and spatial features of blood-forming cells in human bone marrow, confirming hypotheses and providing a powerful new means to study diseases. The method, which uses artificial intelligence, identified and determined the positions of about 1.5 million cells in archival samples.
A study of 48,000 Black women found that those who reported experiences of interpersonal racism faced a higher risk of stroke, even after accounting for other risk factors. This finding suggests a link between racism and racial disparities in stroke incidence among U.S. Black women.
The Canadian Cardiovascular Society has adopted a new classification system for heart attacks based on the extent of tissue damage, which aims to improve patient outcomes by guiding treatment and predicting disease progression. The four-stage classification outlines varying levels of injury following a heart attack.
A new neighborhood-based care model has been shown to be effective in treating hepatitis C among injection drug users and those experiencing homelessness. The study found that 92% of participants had undetectable levels of the virus after treatment, with 84% achieving sustained virologic response.
Scientists identified two genes, ADRA2A and IRX1, that predispose individuals to Raynaud's phenomenon. The genes affect the body's ability to regulate blood vessel constriction, leading to white fingers and toes in response to cold or stress. The study provides new insights into the disease and potential treatment options, including th...
Researchers at Queen Mary University of London developed a new organ-on-a-chip model of the human synovium to study arthritis mechanisms and develop new treatments. The three-dimensional microfluidic device successfully replicates key features of native synovium biology.
Researchers developed a new technology to test new drugs against liver diseases by recreating the real human liver environment. The model consists of live liver cells in an artificial blood vessel system, allowing for controlled testing and monitoring.
A significant increase in the need for treatment of eye diseases is expected due to the growing elderly population. The number of patients requiring anti-VEGF medication is projected to rise by 50% over the next five years.
Researchers found that DPP4 inhibition increased sunitinib efficacy in RCC spheroids and upregulated DPP4 in sunitinib-resistant cells. This suggests potential repurposing of DPP4 inhibitors to target therapy resistance in renal cell carcinoma.
A research team from USC Keck School of Medicine has developed a more rigorous system for conducting preclinical research on stroke treatments, identifying the strongest candidate for further study. The system uses a network of laboratories and animal models that resemble typical stroke patients to test new therapies.
The September issue of the CHEST journal features research on long COVID, including a review on exercise pathophysiology in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome and Postacute Sequelae of SARS-CoV-2. Original studies also explore asthma treatment with albuterol-budesonide inhalers and sleep therapy using oronasal masks.
A study at the Technical University of Munich found that people with long Covid experience altered blood vessels in the eye, which could be used to diagnose the condition. Persistent inflammatory responses were also linked to symptom severity and chronic inflammation.
Researchers highlight microvascular contributions to white matter injury in Alzheimer's disease, sparking calls for exploration of connections between AD, WM injury and cerebral small vessel disease. The study emphasizes the critical need to define mechanisms and diagnostic features of mixed vascular and AD neuropathological change.
A new study suggests that cerebral amyloid angiopathy (CAA), a common cause of spontaneous brain hemorrhages, can be transmitted via blood transfusion. Patients who received blood from donors with CAA were more than twice as likely to suffer a brain hemorrhage themselves.
The Stevens INI is expanding its health disparities research with a new award to examine vascular causes of dementia in Asian Americans. The project aims to use innovative imaging techniques and clinical translations to better understand cerebral small vessel disease (CSVD) and its impact on cognitive impairment and dementia.
A Michigan Medicine study found that pulmonary embolism death rates remained unchanged over the past decade, with higher mortality rates among men, Black patients, and those from rural areas. The study analyzed over 100,000 deaths related to pulmonary embolism between 2006 and 2019.
Researchers at UCL and NIHR Great Ormond Street Hospital Biomedical Research Centre have developed a gene therapy that significantly reduces hearing loss in mice with Norrie disease. The treatment, which restores the missing norrin protein, has shown improved blood vessel structure and protected sensory hairs in the inner ear.
Imaging mass cytometry showcases odd numbers of proteins in kidneys of lupus patients, identifying novel markers for disease. The study found decreased and increased disease markers pointing to renal disease, with potential enlargement of glomeruli in some patients.
The USC NRV Center performs complex revascularization procedures and conducts innovative research to treat debilitating conditions. The center will use the funding to enhance clinical care and education with a focus on technological innovation.
A large long-term study found exposure to high levels of air pollution is associated with increased community mental health services use among people with dementia. Reducing nitrogen dioxide and particulate matter could help free up resources in overstretched psychiatric services.
Research reveals that high blood pressure disrupts artery cell messaging, causing arteries to remain constricted and limiting blood flow to the brain. The study provides a potential route for developing first-ever drug treatments for vascular dementia.
Researchers at the University of Copenhagen have discovered a way to replace diseased and aged brain cells with new ones, which could lead to treatments for neurodegenerative diseases like Huntington's disease and multiple sclerosis. The study used humanized mice models to test the effectiveness of glial cell transplantation.
The American College of Chest Physicians has launched CHEST Pulmonary, a new online publication dedicated to pulmonary and sleep medicine. The journal features original research, case series, and reviews on various topics, including implementation science and artificial intelligence applications.
A new study has created the world's largest map of normal breast tissue, highlighting 12 major cell types and 58 biological cell states. The atlas also identifies differences based on ethnicity, age, and menopause status, providing a powerful resource for researchers studying breast cancer and other diseases.
The inaugural issue of CHEST Critical Care focuses on clinically relevant research and patient management guidance for critical care medicine. The journal accepts submissions of original research, case series, and research letters, covering topics such as intensive care medicine and diverse populations.
Researchers developed an innovative imaging approach using two-photon microscopy to analyze retinal microcirculation, revealing significant changes in blood flow that may indicate brain diseases. The study suggests that microcirculation in the retina could serve as a promising predictor of cerebrovascular diseases.
Researchers at Brown University have developed a new imaging technique to track changes in blood vessels in the brains of mice, which could lead to early detection of neurodegenerative diseases. The method uses advanced imaging techniques and AI algorithms to identify biomarkers that may predict disease onset.
A UCI-led study reveals that the oldest-old, those living up to 90 years old, exhibit similar levels of brain pathology as Alzheimer's patients but with lower levels of pathology from other neurodegenerative diseases. This finding suggests these individuals may be resistant to these age-related cognitive decline.
A case study published in the Journal of Alzheimer's Disease reveals that lecanemab can lead to therapy-induced Aβ phagocytosis and multifocal intracerebral hemorrhage, highlighting a potential risk of brain damage and death. The study suggests that better biomarkers are needed to assess the extent of cerebral amyloid angiopathy.
The study found that endocrine, musculoskeletal, and vascular diseases were the most common causes of hospitalization in individuals with depression. Depression is considered a potential target for preventing both physical and mental health issues.
Researchers found that when FXR1 is absent, vascular smooth muscle cells proliferate more slowly, become senescent, and scar tissue development is reduced. This suggests that drugs targeting FXR1 may treat vascular proliferative diseases such as atherosclerosis, restenosis, hypertension, and abdominal aortic aneurysm.
A UK Biobank study found that cancer survivors may be at long-term increased risk of cardiovascular disease, regardless of traditional risk factors. Those with previous breast or blood cancers were found to have the greatest risk, with significant changes in heart size and function detected on MRI scans.
The CHEST journal April issue features cutting-edge research on asthma, chronic obstructive pulmonary disease (COPD), and sarcoidosis. Key findings include the potential of efzofitimod as a treatment for managing sarcoidosis. The journal also showcases innovative approaches to clinical practice and education in chest medicine.
A large study of over 3 million patients receiving the mRNA COVID-19 vaccine found extremely rare cases of retinal vascular occlusion. The researchers concluded that there is no evidence suggesting an association between the vaccine and newly diagnosed RVO, rates similar to those of other vaccinations.