Articles tagged with Blood Vessels
A new study finds that severe sleep apnea is a risk factor for treatment-resistant diabetic macular edema, a complication of diabetes causing vision loss or blindness. Patients with severe sleep apnea were more likely to experience worsening eye disease and require multiple treatments.
Blood vessels play a significant role in chronic inflammatory bowel diseases, with highly permeable vessels found in patients. The researchers identified interferon-γ as the cause of this malfunction and discovered that inhibiting vessel permeability slows down disease progression.
A study published in Journal of the American College of Cardiology shows that oral anticoagulant dabigatran slows Alzheimer disease progression in mice by improving cerebral circulation. The treatment reduces typical symptoms like inflammation and amyloid protein plaques.
Researchers develop a novel therapy to protect neurons and stimulate regrowth of blood vessels in damaged tissue. In preclinical trials, rats injected with the hydrogel retained more functioning neurons and formed new blood cells at the injury site.
A new model simulates fluid dynamics in arteriovenous grafts, finding that vein flexibility can reduce disrupted blood flow. The study suggests several options for improving AVG designs to prevent thrombosis and extend their lifespan.
A novel initiative called the Stroke Preclinical Assessment Network (SPAN) is testing six potential new stroke therapies, including compressing the arm with a blood pressure-like cuff. This approach, known as remote ischemic conditioning, may reduce stroke size and improve patient recovery.
A recent study published in the Journal of Nutrition found that consuming four servings of cheese per day alongside a high sodium diet may protect blood vessels from damage. The researchers discovered that antioxidants in cheese may play a role in preserving vascular health, providing an alternative strategy to reduce cardiovascular risk.
Researchers discovered that tryptase enzyme causes blood vessel leakage in severe dengue, leading to shock and bleeding. A possible new treatment strategy using nafamostat mesylate is being explored to prevent hemorrhaging and reverse shock.
Researchers have discovered bone-like particles in the peripheral circulation of individuals with advancing age, which may lead to vascular calcification and restricted blood flow. These particles are potentially more dangerous due to their sharp edges and could contribute to diseases such as heart attack and stroke.
A recent study by Anna M. Gruener et al., published in JAMA Ophthalmology, investigated the association between giant cell arteritis and race. The researchers found a significant association between the disorder and certain ethnic groups, with increased risk observed in African Americans, Hispanics, and individuals of mixed ancestry.
Researchers at Trinity College Dublin discovered that claudin-5 plays a crucial role in the development of dry Age-Related Macular Degeneration. The study suggests that regulating blood vessel integrity may prevent the disease.
A team of scientists has identified a key molecular connection between diabetes and vascular disease, finding that high blood glucose activates an enzyme that constricts blood vessels. The study aims to develop new treatments targeting this pathway for reducing vascular complications of diabetes.
A study by IRB Barcelona demonstrates that p38 inhibition boosts blood vessel formation in human and mice colon cancers, critical for cancer growth. The research reveals the role of p38 in mesenchymal stem cells and its involvement in angiogenesis.
Scientists at the University of Edinburgh have developed a system to study endothelial cells, which line blood vessel walls. This breakthrough could lead to therapies that promote new blood vessel growth and help treat conditions like heart disease.
A new therapy has shown promise in promoting vascular repair following a stroke, leading to improved motor functions and regeneration of damaged blood vessels. Researchers used anti-Nogo-A antibodies in mice and found better recovery and reduced motor function impairment compared to control groups.
A novel marker for non-classical monocytes has identified their direct regulatory role in the adaptive immune response. Monocytes can infiltrate specific tissues, modulating immune cell activities.
A study from the University at Buffalo found that people experience a 'paralyzing paradox' when faced with too many options, leading to fear of making the wrong choice. To manage this, considering the relative importance of the choice and having clear guidelines can help scale down decision-making process.
Researchers found that early alcohol exposure restricted placenta growth and blood vessel formation, leading to reduced nutrient delivery to the embryo. This study has significant implications for understanding pregnancy-associated conditions like fetal growth restriction.
Researchers from University of Warwick modelled effects of high blood glucose on human endothelial cells, revealing a key mechanism in blood vessel damage. The study identifies increased hexokinase-2 activity and methylglyoxal formation as drivers of metabolic dysfunction and inflammation.
Researchers have developed artificial molecules that selectively target abnormal vascular smooth muscle cells without affecting endothelial cells. This could lead to new, safer stent treatments.
Researchers developed a new method using magnetic beads to reduce blood levels of harmful sFlt-1 molecule during preeclampsia, freeing up angiogenic factors. The approach showed promising results in reducing sFlt-1 by 40% and PIGF by up to two times more.
Johns Hopkins Medicine researchers have created a 3D image-based model of tumor behavior that captures the complexity of cancer growth. The model uses high-quality imaging data and mathematical formulas to represent blood flow, oxygenation, and structural changes within tumors.
Researchers developed a peptide called FRW that binds specifically to endothelial cell junctions in the blood-brain barrier, paving the way for novel diagnostic imaging strategies and therapies. The new technique also reveals differences between the blood-retina and blood-brain barriers.
Researchers have successfully grown 3D paper organs with artificial blood vessels that can be populated with cells, providing a more complex structure than traditional 2D cell cultures. The paper organs can mimic the architecture of real tissues, influencing how cells grow and respond to external stimuli.
MIT engineers designed tiny robots that use magnetic fields to push nanoparticles out of blood vessels and into tumors, improving drug delivery efficiency. The robots create fluid currents that drag nanoparticles along, overcoming one major obstacle to targeted nanoparticle delivery.
Patients who undergo vascular surgery for major blood vessel injuries due to firearm wounds have the highest injury severity scores, leading to increased risk of death and complications. The study highlights the need for improved trauma care and long-term treatment strategies for gun violence survivors.
Researchers have discovered that injecting cells called pericytes into muscles depleted by inactivity can help restore lost muscle mass. The treatment showed significant improvement in muscle recovery compared to those who regained mobility without injections, particularly in older adults and disabled individuals.
Researchers have discovered an unexpected role for the gene GRIK5 in linking vascular biology to eye disease, utilizing biobanks, electronic health records, and zebrafish. The study found reduced expression of GRIK5 associated with 18 different eye diseases, including retinal detachment, cataract, and glaucoma.
A new study reveals that obesity and insulin resistance can break down the protective blood brain barrier in the brain, leading to problems with learning and memory. Blocking Adora2a receptors in a model of diet-induced obesity maintained barrier function, suggesting that controlling inflammation may prevent cognitive impairment.
Researchers at Johns Hopkins Medicine have found that AXT107 stops abnormal blood vessels in the eye from leaking vision-blocking fluids. The compound strengthens connections between cells, creating a watertight barrier and preventing fluid permeation into surrounding tissue.
Researchers found that sunscreen and sweat on the skin can protect blood vessel function from UVR exposure, preserving nitric oxide levels. This protective effect may benefit individuals who spend extended periods outdoors, reducing the risk of skin vascular dysfunction.
Scientists discover a new population of immune cells that can aid in regenerative processes, enabling the creation of stable blood vessels.
A recent study published in Nature Cell Biology suggests that light therapy could be an effective treatment for premature babies' vision problems. The research discovered a molecular pathway controlled by light exposure that regulates eye development and prevents conditions like retinopathy of prematurity and myopia.
A team of researchers has developed self-sustaining, bioengineered blood vessels that can safely integrate into the native circulatory systems of patients. The vessels, currently being tested in phase 3 clinical trials, offer a promising alternative to replacing damaged vessels with those from human donors or animals.
A new UBC study found that consuming just one dose of carbohydrates while on a high-fat, low-carbohydrate diet can damage blood vessels. The researchers recruited nine healthy young males and had them consume a glucose drink before and after a seven-day keto diet, revealing biomarkers in the blood suggesting vessel wall damage.
Researchers have developed 3D organ-on-a-chip models to test the effects of different levels and types of radiation on human tissues. This technology could lead to more effective therapies with fewer side effects for cancer patients.
Researchers identified a novel group of stem cells controlled by mutations in the parade gene, leading to abnormally positioned pigment cells. The study showed that blood vessels play a crucial role in regulating these stem cells.
Researchers at UBC have discovered a protein called podocalyxin that plays a key role in protecting the brain from harmful blood components during inflammation. The study's findings could lead to the development of new treatments for stroke, epilepsy, and multiple sclerosis by inducing temporary opening of the blood-brain barrier.
Two Clemson University bioengineers, Will Richardson and Naren Vyavahare, have received NIH grants for new research related to the heart, totaling $4.1 million. They are working on projects aimed at treating cardiac fibrosis and reversing vascular calcification, which could impact millions of patients with cardiovascular disease.
Researchers at Wyss Institute develop method to enhance kidney organoid vascularization and maturation, enabling accurate modeling of kidney diseases and drug toxicity testing. This breakthrough paves the way for new building blocks in renal replacement therapies.
Researchers found blocked newborn kidneys can repair themselves after obstruction removal, shedding light on how kidney damage occurs and potentially leading to regeneration methods. They identified precursor cells playing critical roles in this process.
Scientists successfully created functional blood vessels in vitro for rat hearts after a heart attack, resulting in increased blood flow to the engineered tissue. This innovation offers hope for treatments that could help patients regrow heart muscle tissue and achieve more complete recovery.
Researchers from NUS discovered that certain nanoparticles can widen the gap between blood vessel cells, making it easier for cancer cells to spread. This phenomenon, named NanoEL, accelerates tumor growth and causes circulating cancer cells to escape from blood circulation.
Researchers created a lab model of a blood vessel to study angiogenesis, revealing how the molecule EGFL7 influences blood vessel sprouting and integrity. The study suggests EGFL7 as a potential therapeutic target for diseases like retinopathy and cancer.
A biopsy needle with a tiny fiber-optic camera has been tested in humans to help surgeons identify and avoid blood vessels in the brain during surgery. The device detected blood vessels with high accuracy (91.2% sensitivity and 97.7% specificity), reducing the risk of brain bleeds.
Research found that living in areas with dense vegetation is associated with lower stress levels, better blood vessel health, and improved cardiovascular function. The study's findings suggest that increasing green spaces in neighborhoods could be a significant public health intervention for reducing heart disease risk.
Researchers have developed a tiny device that electrically stimulates the brain, paving the way for minimally invasive treatments for conditions such as epilepsy and Parkinson's disease. The Stentrode can deliver targeted stimulation without open-brain surgery, opening up new possibilities for treating neurological disorders.
Researchers at the University of California San Diego have developed a simple 3D bioprinting technique using natural materials to create lifelike organ tissue models. The method allows for the creation of vascularized human gut and blood vessel networks capable of keeping cancer tumor tissues alive outside the body.
A study published in Complementary Therapies in Medicine found that face massage rollers increased facial skin blood flow by up to 25% after just five minutes. Long-term use also improved the vasodilatory response, suggesting a potential mechanism behind its benefits.
Research found that hookah tobacco smoking impairs blood vessel function, similar to cigarette smoking, due to high levels of carbon monoxide. Hookah smoke exposes users to additional toxic substances from charcoal combustion products.
Research suggests that leptin levels play a crucial role in protecting the cardiovascular system from damage. When leptin levels are optimal, they help restore balance to the body's physiological processes, reducing inflammation and oxidative stress.
A large study published in The BMJ found that pre-eclampsia is associated with an increased risk of later dementia, particularly vascular dementia. Women with a history of pre-eclampsia were more than three times as likely to develop vascular dementia compared to those without the condition.
A unique source of stem cells in blood helps build blood vessels in embryos, contradicting previous theories. This finding brings scientists closer to using stem cells to repair damaged blood vessels and treat heart and circulatory diseases.
Researchers will use mice to create detailed maps of young and aging brains' blood vessels, hoping to understand healthy brain development and disease progression. The project aims to lay the groundwork for studying pathological conditions like strokes and Alzheimer's disease.
Researchers identified three key proteins that determine blood vessel growth and behavior, which may become new therapeutic targets. A novel approach focusing on endothelial cell metabolism could outperform current anti-VEGF therapies in efficacy.
Researchers at Texas A&M University have developed a clay-based platform that delivers therapeutic proteins to assist with the formation of blood vessels. The technology introduces nanosilicates to deliver growth factors, promoting sustained and controlled release.
Researchers found that compounds in Sakurajima Daikon radish promote nitric oxide production, which can improve coronary blood vessel function. The study identifies trigonelline as the active component behind this effect.
Researchers have found that improving lymphatic vessel function can enhance cognitive ability in aged mice and reduce the accumulation of harmful amyloid plaques. This breakthrough discovery offers new hope for treating or preventing Alzheimer's disease and other neurodegenerative diseases.
Research from Rockefeller University reveals that giant neurons in the brainstem, called nucleus gigantocellularis, express genes linked to nitric oxide production and blood vessel relaxation. This discovery supports their role in initiating behavior and potentially understanding psychiatric disorders like bipolar disorder and ADHD.
Researchers at Tohoku University found that whole-brain low-intensity pulsed ultrasound (LIPUS) therapy improved cognitive dysfunction in mice with vascular dementia and Alzheimer's disease. The treatment was shown to enhance blood vessel formation, nerve cell regeneration, and protein expression without serious side effects.