Articles tagged with Blood Vessels
A new method of biometric authentication has been developed using hyperspectral imaging and AI to identify individuals through the unique patterns in their blood vessels on the palm of their hand. The technology shows great promise for secure personal identification and could potentially be used as a key to unlock homes.
A POSTECH research team developed a photoacoustic computed tomography (PACT) system that non-invasively monitors cerebrovascular changes in small animals with early stages of an ischemic stroke. The technology also measures oxygen saturation in blood vessels, allowing precise tracking of vascular recovery after stroke.
A new stem cell transplant treatment has shown promising results in clearing clinical safety hurdles for the treatment of wet age-related macular degeneration. The treatment involves removing abnormal blood vessels and transplanting stem cell-derived retinal cells to replace damaged or lost retinal cells.
Researchers developed reprogrammed vascular endothelial cells that provide strong support for islets, allowing them to survive and reverse diabetes long-term. The study showed that mice transplanted with islet cells plus R-VECs regained normal blood glucose control after 20 weeks.
Researchers found that intracranial hemorrhages double the risk of dementia in people. The study analyzed Medicare claims and observed a two-fold increase in dementia diagnoses within 5.6 years after a hemorrhage.
A study at Lund University found that brain trauma triggers Alzheimer's disease through vascular changes, challenging existing paradigms. The research team identified increased aggregation of amyloid-beta and vascular alterations in patients with traumatic brain injury.
A team of researchers has developed a novel model of the Blood-Brain Barrier, which mimics the complex structure of cerebral blood vessels. This breakthrough enables scientists to study neuroinflammation and develop new therapeutic strategies for Alzheimer's disease and other neurodegenerative disorders.
Researchers at Lancaster University have developed a new method to detect Alzheimer's disease by analyzing changes in brain oxygenation dynamics and neuronal function. The study found that individuals with Alzheimer's disease exhibit altered respiratory frequency, which may be an early indicator of the condition.
Researchers found increased brachial artery diameter and blood flow in college baseball players' dominant arms, particularly pitchers. This asymmetrical adaptation may aid in injury prevention and optimize training strategies.
A study led by University of Cincinnati researcher Jun-Ming Zhang investigates the link between blood vessel movement and neuropathic spontaneous pain. The research aims to understand how blood vessel movement triggers cluster firing of neurons, a key mechanism in neuropathic pain.
Researchers found microvascular trouble to be an early biomarker for dementia and potential target for therapy. People with memory problems showed blood vessel dysfunction, regardless of Alzheimer's-related brain changes.
A study suggests targeting endocan, a protein produced by endothelial cells in blood vessels, could slow tumor growth and make glioblastoma more vulnerable to existing treatments. The discovery may lead to new strategies to combat glioblastoma, which has an average lifespan of just 12-15 months.
Researchers at Karolinska Institutet used AI to analyze brain images from 70-year-olds and found that factors like inflammation and high glucose levels are associated with an older-looking brain. A healthy lifestyle, on the other hand, was linked to brains with a younger appearance.
A new blood-based biomarker, placental growth factor (PlGF), has been identified as a potential tool for detecting early brain changes associated with cognitive impairment and dementia. Elevated PlGF levels were found to be linked to increased vascular permeability, leading to white matter injury and subsequent cognitive decline.
Research team at the University of Basel uncovers new mechanisms in blood vessel formation, highlighting the critical role of dynamic forces and protein regulation. The study reveals that contraction forces enable continuous vascular lumen formation, while Rasip1 plays a key role in initial steps of lumen formation.
A meta-analysis of four randomized clinical trials found that endovascular therapy significantly reduces patient mortality and overall post-stroke disability for vertebrobasilar stroke patients. EVT is nearly 2½ times more likely to achieve a positive outcome compared to standard medical management.
Endothelial cells lining pulmonary veins contribute to blood vessel repair and angiogenesis after lung injury. The study found that these cells proliferate into the adjacent capillary bed, differentiating into capillary cells, which can help regenerate damaged tissues.
Researchers found that megakaryocyte conditioned media from younger mice was more effective at promoting blood vessel growth and improving healing. The study provides a potential approach for developing new therapies to speed up fracture recovery in older individuals, reducing pain and improving mobility.
Research highlights Nup93's critical role in endothelial cell function and vascular health, with promising findings for new treatments to slow down aging. Low Nup93 levels are associated with inflammation and cellular aging, while restoring its levels can reverse harmful effects.
A new study maps genetic traits to cellular composition of atherosclerotic plaques, predicting future stroke or heart attack risk. The research improves risk assessment and treatment for patients with atherosclerosis.
Researchers found that a high-flavanol cocoa drink can protect the body's vasculature against stress even after eating high-fat food. Flavanols in green tea and other foods also showed benefits for cardiovascular health.
Scientists have identified a key driver of brain inflammation in neurological diseases, proposing a new treatment approach by neutralizing fibrin. This protein, involved in blood coagulation, triggers neurologic diseases by hijacking the immune system, resulting in damaged neurons.
Researchers used fluorescein angiography to visualize neural blood flow in rats and rabbits with chronic nerve compression neuropathy, correlating findings with electrodiagnostic testing. The study showed promising results for the method's potential to improve diagnosis and treatment outcomes in carpal tunnel surgery.
Researchers found that patients who consumed caffeine had better vascular health, as measured through endothelial cells. The study suggests that caffeine may play a role in controlling disease progression and improving cardiovascular health.
Endomimetics is developing a Bionanomatrix coating to accelerate aneurysm occlusion and minimize thrombus formation in brain aneurysm patients. The coating promotes endothelialization through five synergistic elements, reducing inflammatory responses and platelet adhesion.
Researchers found that border-associated macrophages (BAMs) with ApoE4 protein produce inflammatory oxygen free radicals, damaging blood vessels. Removing BAMs or reducing ApoE4 expression eliminated the harmful vascular effects. The study may help identify new approaches to preventing or treating Alzheimer's disease.
A new study by University of Oklahoma researchers identifies key measurements of brain blood flow and ability to compensate as better predictors of mild cognitive impairment than traditional risk factors. The findings provide hope for preventing or treating memory problems early before they progress to dementia.
Researchers aim to find a new treatment pathway for diabetic retinopathy by targeting the IL-6 protein. They suspect that selectively inhibiting trans-signaling while allowing cis-signaling will stop damage and restore balance in the retina.
Biomedical engineers at the University of Rochester have developed a novel technique using ultrasound waves to organize endothelial cells into patterns that promote the growth of new vessel networks. The team aims to treat ischemic injuries caused by damaged tissue in reconstructive and plastic surgeries.
Researchers at Åbo Akademi University have discovered a crucial protein, TLNRD1, that helps maintain blood vessel stability in the brain. The study highlights the potential for targeted molecular therapies to improve patient outcomes in CCM disease.
Researchers developed an air-powered computer that sets off alarms when certain medical devices fail, preventing blood clots and strokes. The device uses air to issue warnings, reducing costs and improving safety in healthcare settings.
Researchers highlight the need to develop new anti-angiogenic agents to improve cancer treatment efficacy, citing knowledge gaps in human clinical trials. The review recommends considering tumor mutations, microenvironment, and patient profiles to select optimal AAD combinations.
Researchers will investigate how altered copper metabolism and redox balance contribute to endothelial cell dysfunction, leading to cardiovascular diseases. The five-year project aims to understand the underlying mechanisms of vascular disease and develop effective treatments.
Researchers used advanced imaging techniques to create detailed maps of mouse brains, identifying areas vulnerable to blood vessel degeneration. These changes can lead to cognitive decline and neurodegenerative disorders like Alzheimer's disease.
A team of researchers has discovered a mechanism by which the liver's immune cells are suppressed in chronic hepatitis B, leading to organ damage. The 'sleep timer' function allows immune cells to weaken their activity over time, preventing them from proliferating excessively and causing further damage.
A novel, star-shaped polymer has been developed as a low-volume resuscitant for prehospital treatment of severe hemorrhagic shock. The solution can refill blood vessels without disrupting coagulation, offering an improvement over existing colloidal resuscitants.
Researchers found that inhibiting telomerase, an enzyme related to cell growth and division, can suppress abnormal vascular growth in the retina. This discovery provides a potential alternative treatment option for wet AMD, which is currently treated with anti-VEGF injections.
Researchers find that a repurposed drug, crizanlizumab, stabilizes vision in patients with retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (RVCL-S) after two years of treatment. The study suggests that this may give patients additional years to read, drive, and enjoy activities.
Scientists designed ring-shaped proteins targeting growth factor receptors to control human stem cell development. The resulting vascular networks formed tubes, healed, and absorbed nutrients, offering a new approach to repairing damaged hearts and kidneys.
Researchers have identified SEMA3A as a critical player in the development of fatty liver disease, where it closes blood vessel 'windows' hindering fat transport. Inhibiting SEMA3A reduces liver fat and improves function.
Research finds that Huntington’s disease damages microscopic blood vessels in the brain, affecting coordination between neuronal activity and oxygenation. The study uses non-invasive measurement techniques to monitor disease progression and evaluate potential treatments.
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 discovered that a mutation in the TREX1 gene causes catastrophic DNA damage, leading to premature aging and organ damage. The study found that targeting TREX1 could have broad implications for treating many human diseases linked to aging.
The DRIVE-RM consortium, led by UMC Utrecht, aims to develop smart materials that assist the body in healing and regenerate tissues and organs using regenerative medicine. The project focuses on treating chronic diseases such as heart failure, kidney failure, and worn joints.
Researchers at University of California - San Francisco discovered a new type of neuron that guides the formation of intricate 3D lattices of blood vessels in the retina. These perivascular neurons produce PIEZO2 protein to sense nearby cells and direct the lattice's growth.
Researchers have discovered a protein marker to help identify cells able to repopulate in patients with damaged blood vessels. These cells could form new blood vessels and contribute to the repair of heart tissue after a heart attack.
A study by Tohoku University has found that synchronized vasomotion, which efficiently delivers oxygen and glucose, may improve learning abilities and potentially delay or prevent dementia. The research used a method to monitor blood vessel dynamics in the mouse brain and induced vasomotion via visual stimuli.
Researchers developed a new method to accelerate high-resolution ultrasound localization microscopy using deep learning, enabling faster and more accurate imaging of microvascular structures. The technique, called LOCA-ULM, improves spatial resolution and processing speed while maintaining sensitivity for functional imaging.
Researchers have developed a pressure-alternating shoe insole that provides periods of rest to the soft tissues, thereby reducing the risk of diabetic foot ulcers. This innovative technology aims to mitigate the risk of complications from poor circulation and foot sores.
Researchers developed a nanosized polymer that selectively delivers chemotherapeutic drugs to blood vessels supporting tumor growth. The treatment eliminates colorectal cancer liver metastases and prolongs mice survival after a single dose-therapy.
Researchers discovered changes to blood vessels in the brain that can increase stroke and dementia risk are common in people with heart conditions. The study confirms heart disease as a main cause of these changes, highlighting the importance of imaging tests to guide safer treatment choices.
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 have discovered a universal mechanism for cell motility, applying to various types of migrating cells. Cells tend to move circumferentially on convex structures and prefer axial forward or backward motion on concave surfaces.
Researchers have discovered that neurochemicals influence neural activity, blood flow, and fMRI measurements. The study found that certain neurochemicals can cause constrictions in blood vessels, leading to negative fMRI signals.
Research by Johns Hopkins Medicine suggests that increased stiffness in aging skin contributes to higher rates of melanoma metastasis by stimulating blood vessel growth and making them leaky. Treating older mice with drugs blocking ICAM1 prevented these changes, shrinking tumors and reducing metastasis.
A new study from Uppsala University found that adults who sleep only three to five hours a day are at higher risk of developing type 2 diabetes. Chronic sleep deprivation cannot be compensated by healthy eating alone.
Scientists have uncovered a novel form of MRI scan that shows how Long-COVID affects the human brain's delicate network of blood vessels. The study found disruption to the integrity of blood vessels in patients with Long COVID and brain fog, highlighting a potential target for targeted therapies.
Researchers found that bariatric surgery led to improved cognition and overall well-being two years after the procedure. The study revealed changes in blood vessel efficiency and cortical thickness of the temporal cortex, offering new treatment options for patients with obesity and dementia.
Researchers at Karolinska Institutet discovered that fibroblasts mediate erection by taking up noradrenaline, widening blood vessels, and increasing the number of cells in response to frequent erections. This knowledge may lead to new treatments for erectile dysfunction.
Researchers have found a connection between the brain and its tough protective covering, the dura mater, allowing waste fluid to leave the brain while exposing it to immune cells. This discovery has implications for neural-immune system responses and aging, potentially leading to new treatments for neurodegenerative diseases.