Articles tagged with Endothelium
High-intensity interval training shows strongest vascular benefits in cardiovascular patients. HIIE consistently improves flow-mediated dilation and vasodilation, with combined high-intensity programs showing the largest estimated effects on endothelial function.
Researchers have identified connexin 43 as a vital protein for endothelial repair in mice, which could lead to new therapies to improve recovery and reduce complications after vascular surgery. The study found that the protein helps blood vessels recover after damage, suggesting it could be a target for treatments.
A team of researchers created a 3D-bioprinted model of stenotic brain blood vessels to study the effects of abnormal flow patterns on endothelial cells. The model successfully replicated physiological conditions, including upregulation of inflammatory markers.
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 identified patterns of upregulated genes in aortic endothelium that contribute to aneurysm formation. They also found stiffer endothelium in sites prone to aneurysms, which can lead to vessel wall alterations and increased risk of rupture.
Researchers discuss primary hepatic angiosarcoma, a rare mesenchymal liver tumor, and its poor prognosis compared to hepatocellular carcinoma. Diagnosing PHA is critical due to its similar clinical presentation to HCC.
Researchers at the Josep Carreras Institute have discovered a crucial protein, PI3K-C2b, that regulates mTORC1 signaling and angiogenic growth in blood vessels. This finding holds promise for developing new treatments for congenital vascular disorders.
Researchers have developed a synthetic peptide that could help reduce vascular problems associated with acute respiratory distress syndrome in COVID-19. The peptide, called TIP, works by binding to a subunit of the epithelial sodium channel, which helps maintain barrier function and prevent damage from viral proteins.
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.
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.
Researchers found a unique bivalent histone-mark switch specific to critical transcription factors that induce genes essential for angiogenesis. The histone modifiers responsible for this modification are vital for postnatal angiogenesis.
A study found that severe COVID-19 is associated with endothelial dysfunction, strong inflammatory processes, and a dysfunctional immune system. The researchers discovered seven plasma proteins linked to severe disease, which are also involved in the regeneration of the endothelial barrier during recovery.
A clinical study found that severe COVID-19 patients exhibit impaired microvascular function, which correlates with disease severity. Non-invasive near-infrared spectroscopy monitoring may help predict disease course and select responders to novel therapies.
Researchers used a hamster model to study COVID-19 lung damage, discovering that the immune system's response plays a crucial role in disease progression. They found that certain cells involved in lung immunity ingest the virus, triggering an inflammatory response that can be brought under control by T cells.
A study by University of Copenhagen researchers reveals that nanoparticles can target venules, not capillaries, to deliver drugs to the brain. The breakthrough allows for more efficient and safer therapeutic approaches to treat neurodegenerative diseases like Alzheimer's and Parkinson's.
A study published in PLOS Medicine found that a Mediterranean diet improved endothelial function and reduced damage to the arteries in patients with coronary heart disease. The diet, rich in monounsaturated fatty acids, was shown to reduce the risk of another heart attack by half.
Researchers found that turbulent blood flows react strongly to vessel geometry, leading to higher velocity fluctuations and increased risk of arteriosclerosis. The study suggests a new mechanism for turbulence in cardiovascular flow at lower speeds than previously thought.
Researchers developed an advanced blood vessel model to study progeria, a devastating genetic disease. The model shows that the endothelium, not just smooth muscle cells, plays a crucial role in progeria symptoms, and dynamic 3D models are necessary to understand its effects.
Scientists create a bilayer platform that can alter surface topographies using shape-memory polymers and gold nanorods to promote cell polarization and collective migration of vascular endothelial cells. This approach enables dynamic manipulation of cell functions, mimicking the native ECM-mediated effects in the human body.
Researchers developed a remote-controlled 'smart' platform to mimic natural extracellular matrix-mediated endothelialization. The platform uses shape-memory polymers and gold nanorods to direct programmed vascular endothelium remodeling in a temporally controllable manner, offering new possibilities for treating cardiovascular disease.
A recent study discovered a non-coding genetic variant, rs17114036, that enhances endothelial response to blood flow, reducing the risk of coronary artery disease. This variant is associated with increased expression of phospholipid phosphatase 3 (PLPP3), which promotes vascular health.
Researchers at Ohio University found that Vitamin D3 can restore damaged cardiovascular systems and reduce the risk of heart attack. The study used nanosensors to track the impacts of Vitamin D3 on single endothelial cells, revealing its powerful stimulatory effects on nitric oxide and reduction in oxidative stress.
Researchers discovered synthetic APC-mimicking small molecules called 'parmodulins' provide anti-inflammatory and anti-thrombotic protection on par with APC, but without interfering with blood clotting. Parmodulins activate PAR1, triggering protective pathways in endothelial cells.
A genome-wide association study reveals three novel genomic loci linked to Fuchs endothelial corneal dystrophy (FECD), a condition affecting the cornea and causing progressive vision loss. The findings provide new insights into the disease's pathology and potential therapeutic targets.
Researchers at the University of Strathclyde are developing miniature optical techniques to visualize the endothelium, a complex sensory system that monitors blood pressure and flow rates. The technology aims to revolutionize our understanding of vascular disease, including hypertension and atherosclerosis.
Researchers from Harvard Medical School have gained new understanding of how endomucin, a key molecule with anti-adhesive properties, prevents inflammatory cells from adhering to blood vessels. By promoting the expression of endomucin, they believe it may be possible to develop treatments for inflammation.
Researchers found that aging actually offers significant protection against oxidative stress, as the endothelium adapts to regulate ROS and minimize cell death. This adaptation helps ensure arteries of older individuals can still function properly.
The study, led by Elizabeth M. C. Hillman, reveals the vascular endothelium plays a critical role in regulating blood flow in response to neuronal activity. This finding has far-reaching implications for understanding early brain development, disease, and aging.
The endothelium, a cellular layer lining blood vessels, has an efficient barrier function maintained by its ability to heal micro-wounds. New research shows that biomechanical signals trigger the recovery response, generating reactive oxygen species to close gaps and restore functionality.
Researchers developed a novel therapy for endothelial barrier damage using multifunctional perfluorocarbon nanoparticles and anti-inflammatory drug delivery. The therapy demonstrated the evolution and severity of endothelium damage in correlation to animal fat-diet consumption.
Scientists have developed two novel model systems for human corneal endothelium, enabling reliable study of HCEnC cells in health and disease. The new model systems, HCENC-21 and HCEnC-21T, mimic the critical characteristics and functionalities of the tissue in the eye.
Researchers at Beth Israel Deaconess Medical Center have discovered how MSCs traffic from circulation to damaged tissues, revealing a rate-limiting step that may explain their inefficiency in entering inflamed areas. The findings suggest enhancing MSC homing could improve delivery and therapeutic efficacy.
Researchers at Tulane University discovered that blocking the effects of carbon monoxide can limit bleeding in cases of soft tissue trauma. The study found that inhibiting CO helped control blood pressure and prevent massive bleeding by constricting damaged blood vessels, while maintaining circulation to other parts of the body.
A new study reveals that insulin therapy preserves endothelial function in critically ill patients, improving oxygen supply to cells. This finding opens doors for novel treatments and progress in intensive care medicine.
Researchers found that wild blueberry-enriched diets helped relax arteries, reducing blood pressure and potential damage to the endothelial layer. The study suggests that high concentrations of antioxidants in blueberries may preserve nitric oxide bioavailability, aiding in maintaining arterial relaxation.
Myeloperoxidase (MPO) produces nitrotyrosine in the subendothelial space, indicating oxidative damage to endothelial cells. This finding suggests MPO may contribute to vascular dysfunction and cardiovascular disease.
Research suggests that estrogen replacement drugs can modify vein function in ways that increase the risk of venous thrombosis. Studies using adult female pigs found that hormone replacement therapies containing estradiol and SERMs altered cellular processes in veins, leading to changes in diameter, relaxation, and coagulation.