Articles tagged with Blood Vessels
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.
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 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.
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.
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 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 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.
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.
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 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.
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.
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.
A recent randomized controlled trial found that consuming red raspberry drinks improved flow-mediated dilation, an established biomarker of cardiovascular disease risk. Ellagic acid and urolithin metabolites correlated with FMD improvements in some participants.
Researchers discovered bacterial aggregates behave like a thick liquid, facilitating meningococcal infection progression and highlighting the importance of type IV pili in aggregate formation. The study's findings provide new insights into the mechanisms governing disease development.
Research suggests that oxygen therapy can improve the function of blood vessels in the brains of individuals with chronic obstructive pulmonary disease (COPD), a common cause of dementia. This study found that delivering additional oxygen increased blood flow and oxygen delivery to the brain, matching its demands during activity.
Researchers have discovered a possible treatment approach for cerebral small vessel disease (SVD), the most common cause of dementia and stroke in older adults. Studies with rats showed that treating SVD can reverse changes in blood vessels in the brain associated with the condition, as well as prevent damage to brain cells.
Researchers at Boston University School of Medicine discovered that flavored electronic cigarettes contain additives that can decrease blood flow and increase inflammation in blood vessels, similar to combustible cigarettes. The study's findings suggest a potential link between flavored e-cigarette use and cardiovascular disease.
New research reveals that cigarette smoke directly damages muscles by reducing blood vessel numbers, impacting metabolism and activity levels. This muscle damage is a key risk factor for chronic diseases such as COPD and diabetes.
Antibodies against myeloperoxidase signal impending relapse in antineutrophil cytoplasmic antibody-associated vasculitis patients. Routine monitoring may help prevent disease flare-ups.
Research found a link between poorer health-related quality of life in adolescence and increased risk of cardiovascular disease. Adolescents with lower scores in social and mental well-being domains had structural changes in their retinal blood vessels, which could be indicative of future cardiovascular disease risk.
In a breakthrough study, NIH scientists identified distinct immune cell subsets that work together to repair the damaged meninges and blood vessels in mice. The research provides new insights into the recovery process after concussion and may lead to the development of targeted therapies to improve patient outcomes.
A new biomarker identified a 'window of opportunity' for cancer chemotherapy timing, optimizing the effectiveness of anti-angiogenic and anticancer drug combinations. The biomarker, CD109 expression in vascular endothelial cells, correlates with tumor cell growth and enables the visualization of proliferating blood vessels.
A Michigan State University study found unusual lipids in the retina's blood vessels, which may prevent diabetic retinopathy by strengthening the blood-retinal barrier. The discovery could lead to new treatments involving injections or eye drops.
Researchers have discovered that immune cells cause dangerous blood vessel blockage in response to fungal infections, leading to new therapeutic targets. The study's findings could lead to the development of treatments that prevent this blockage without inhibiting the immune system.
Scientists at Johns Hopkins Medicine have made significant breakthroughs in understanding the underlying biology behind pulmonary hypertension. By studying endothelial cells, they discovered that KLF15 protects these cells from damage caused by low oxygen levels, which can lead to blood vessel damage and progression of the disease.
Patients with cardiovascular disease have impaired levels of protective molecules in their blood in the morning, leading to increased risk of blood clots and heart attacks. Replenishing these molecules can improve cell behavior and reduce inflammation.
Researchers found that neural cells from schizophrenic patients produce less pro-angiogenic molecules and more anti-angiogenic proteins, impairing blood vessel formation. The study provides new insights into the causes of schizophrenia and potential therapeutic solutions.
Researchers discover a possible direct connection between disrupted circadian clocks and increased levels of ADAM17, an enzyme that promotes inflammation and stiffens blood vessel walls. This relationship could explain why poor sleep habits contribute to cardiovascular disease risk factors.
A new study found that a newly discovered gene called STEEL senses inadequate blood flow to tissues and triggers the growth of new blood vessels. This discovery could lead to advances in understanding and treating cardiovascular diseases such as heart disease and strokes.
A team of researchers from Osaka University has identified adult endothelial stem cells capable of generating fully functional blood vessels. The discovery was made by isolating a population of endothelial cells expressing the glycoprotein CD157 and testing their ability to form new blood vessels in injured mice.
A team of researchers has discovered a chemical compound that converts patient-derived stem cells into blood vessels, offering new hope for treating achromatopsia and cone-rod dystrophy. The compound, AA147, successfully directed the stem cells to develop primarily into endothelial cells that can form blood vessels.
Biomedical engineers developed a miniaturized system mimicking blood vessel injury, allowing for the study of bleeding and clotting. The device replicates all aspects of blood vessel injury, including clot formation and repair, and responds to drugs and other alterations.
A new interaction between proteins could provide a breakthrough in the prevention of healthy blood vessel damage. The study found that stabilizing caveolae regions prevents damage by binding protein SOCS3 with Cavin-1, maintaining healthy vascular function.