Articles tagged with Blood Vessels
Researchers have discovered a new target for the diagnosis and treatment of age-related macular degeneration by blocking the activity of the CCR3 protein. This approach shows promise as a safer and more effective alternative to current treatments, which target vascular endothelial growth factor (VEGF).
Researchers have identified a molecule called PHD2 that regulates blood vessel growth and is often found at lower-than-normal levels in human tumors. Blocking PHD2 expression allows human cancer cells to grow more quickly, increasing tumor blood vessel formation.
A new model suggests mechanical forces play a crucial role in blood vessel growth, challenging previous assumptions about chemical gradients. This finding opens up new possibilities for treating diseases such as tumors, rheumatism, and eye disorders.
Researchers found that increased O-GlcNAc levels damage blood vessels by reducing nitric oxide production, increasing blood pressure and vessel contraction. This discovery could lead to new treatments targeting the O-GlcNAc pathway.
Researchers found that obstructive sleep apnea thickens blood vessels due to NADPH oxidase enzyme activation, increasing the risk of pulmonary hypertension and other heart diseases. In mice, inhibiting NADPH oxidase reduced hypoxia-induced pulmonary hypertension, suggesting potential treatment strategies.
The American College of Physicians has released a guidebook and DVD to assist patients in managing high blood pressure, a condition that increases the risk of heart disease, stroke, and kidney problems. The resource provides information on causes, risk factors, and lifestyle changes to control hypertension.
Researchers at USC have identified a new compound that targets both tumor cells and surrounding blood vessels, potentially leading to more effective treatment options for brain tumors. The study found that the compound reduced tumor growth and blood vessel density in animal studies.
A new study by Dr. Jayakrishna Ambati and colleagues found that the siRNA treatment is toxic to both blood and lymphatic endothelial cells, with potential applications in cornea transplantation and treatment of lymphatic diseases.
Researchers at Wake Forest University School of Medicine discovered a protein called ferritin binds to HKa, promoting blood vessel formation that assists in tumor growth. The study suggests preventing the binding could block tumor growth, with implications for wound care.
Researchers found that mice with mutated or missing clock genes developed thick and inflexible blood vessels, a hallmark of vascular disease. This suggests that clocks may work normally in the brain but malfunction in blood vessels to bring on hypertension and vascular disease.
A team of researchers, led by Mark Kahn, has discovered that CCM is caused by leaky junctions between cells in the lining of blood vessels, linked to mutated or missing proteins in a novel biochemical process called Heart-of-glass (HEG)-CCM pathway.
Researchers at Uppsala University developed a tool to study signals controlling blood vessel growth, enabling scientists to determine what attracts or repels vessels. This knowledge is crucial in tumor research, as unwanted angiogenesis can fuel tumor growth.
A Johns Hopkins engineer is working on coaxing human stem cells to form new blood vessels that could replace damaged tissue in people with heart disease and other illnesses. The researcher, Sharon Gerecht, aims to understand the molecular signals that cause stem cells to differentiate into blood vessels.
Researchers found that aldosterone levels were directly correlated with blood pressure levels and related changes in blood vessel function. Higher aldosterone levels were also associated with lower kidney blood flow and greater extremity blood vessel stiffness.
The study reveals that PHD2-blockers can convert abnormal endothelial layers into tightly aligned cells, allowing anti-cancer medicines to reach their destination more easily. This improves the effectiveness of chemotherapy and reduces cancer cell migration.
Researchers at the Centenary Institute have discovered a mechanism controlling endothelial cell growth and function. The process of differentiation, triggered by high levels of sphingosine kinase-1, allows cells to mature into functional endothelial cells, potentially leading to new treatments for cardiovascular disease and diabetes.
Researchers have identified a key protein Nkx2-5 that determines the fate of cells in developing embryos, shedding light on blood vessel formation. The discovery holds promise for developing treatments for heart disease and cancer by modifying this gene.
Researchers have found that bone marrow cells can promote the regrowth of both blood vessels and the protective lining of nerves in diabetic animals. This discovery has potential implications for treating neuropathy in people with diabetes.
Researchers have found that female hormones play a crucial role in the body's ability to regulate salt levels, potentially explaining why women are less prone to salt-sensitive hypertension. The study suggests that estrogen drives the beneficial action of ETA receptors, which increase sodium excretion without increasing blood pressure.
The study found that suppressing the respective genes protects mice from severe anaphylactic reactions. This discovery paves the way for developing new drugs to treat and prevent anaphylactic shock.
A new study has found that build-up of infected blood cells in brain's narrow vessels leads to lack of oxygen, causing lethal damage. The research provides strong evidence for understanding why cerebral malaria is so deadly and may lead to new therapeutic measures.
Researchers at Karolinska Institutet found that mice exposed to low temperatures develop more blood vessels in adipose tissue, leading to faster fat metabolism. This discovery offers new therapeutic avenues for obesity and metabolic diseases.
Researchers have discovered biomarkers in blood that could aid diagnosis of severe and debilitating forms of malaria, including placental and cerebral malaria. Elevated levels of C5a and angiopoietin-2 were found to be associated with these forms of the disease, potentially allowing for earlier detection and targeted treatment strategies.
Researchers found that exercise increased cerebral blood flow and the number of small blood vessels in the brain of older adults. The study suggests that regular physical activity may help prevent age-related cognitive decline by improving brain health.
Researchers have identified a key signaling pathway, Notch, that stimulates endothelial cells to form new blood vessels in wounds. This discovery has significant implications for treating chronic skin wounds in diabetic patients and those with morbid obesity.
New research reveals that alkaline pH activates TRPA1 protein in human cell lines and mouse nerve cells, causing pain sensation. The study suggests a potential link between TRPA1 activation and human alkaline pH-related pain sensations, contributing to the understanding of pain mechanisms.
Researchers at the University of Pittsburgh discovered that exposure to EPA-approved levels of arsenic in drinking water can lead to cardiovascular disease by closing pores in liver blood vessels. The study found that mice exposed to arsenic had impaired sinusoidal cell functions, leading to a loss of nutrient exchange and waste removal.
A new study finds that air pollution has a significant impact on heart health, with personal exposure leading to increased blood pressure and systolic blood pressure. Community-level exposure is also associated with impaired blood vessel functioning, potentially contributing to sudden heart attacks, strokes, and heart failure.
A study published in Nature Genetics has identified three chromosome segments where common genetic variations can create significant risk for ruptured aneurysms, leading to strokes. The findings could lead to new screening tests and therapies to strengthen blood vessels in the brain.
Researchers found that blocking VEGF levels in a tumor props up existing blood vessels, making them stronger and more normal. This makes the tumor more susceptible to chemotherapy drugs, offering a new strategy for cancer treatment.
A recent study published in PLoS ONE suggests that anti-VEGF drugs used to treat macular degeneration could cause the death of photoreceptors and Muller glia cells in adult mice. The research highlights the need for caution when using these drugs, as their effects on the retina may be more complex than previously thought.
Hydrogen sulfide is produced in the endothelial lining of blood vessels and regulates blood pressure by relaxing blood vessels. The discovery has potential applications for designing drug therapies to enhance its formation as an alternative to current hypertension treatments.
Scientists at Johns Hopkins University School of Medicine have identified over 100 human protein fragments that can slow or stop the growth of cells making up new blood vessels. These compounds, known as antiangiogenesis peptides, could lead to treatments for diseases such as cancer, macular degeneration, and rheumatoid arthritis.
Researchers aim to harness the power of endothelin-1 to constrict blood vessels, but complex receptor interactions hinder progress. Dr. Adviye Ergul suggests that poorly understood relationships in normal and disease states may be behind failed clinical trials.
Blood vessel cells can be instructed to form three-dimensional, tube-like structures using a special type of 'instructor' molecule. This discovery may lead to the development of new stem cell-based therapies for organ transplantation.
Researchers found specific alterations in heart and circulation in children with small birth weight, differing between boys and girls. These changes are associated with higher blood pressure and risk of hypertension and heart disease.
Researchers successfully grew functional human blood vessels in mice using adult human donor cells, creating a new model for tissue engineering. The study used a combination of two types of progenitor cells to form a small ball of healthy blood vessels, with the ability to rapidly grow two-layered vessels without embryonic stem cells.
Diabetes can cause gangrene and skin ulcers due to restricted blood supply, leading to impaired healing and tissue dysfunction. New therapies may be developed by suppressing the action of p75NTR, a gene responsible for promoting blood vessel growth in diabetes.
Researchers at the University of Missouri have developed a new non-toxic treatment that targets both tumor cells and blood vessels, effectively reducing breast cancer cell growth. The combination of PRIMA-1 and 2aG4 has been shown to improve responses and reduce side effects in pre-clinical trials.
Consuming cocoa flavanol-rich beverages daily can positively impact blood vessel dysfunction associated with type-2 diabetes. A 30-day trial found a 30% improvement in measured vessel function among participants who regularly consumed a flavanol-rich beverage.
A new small molecule inhibitor of Src kinases was found to eliminate VEGF-induced fluid accumulation in the retina of mice and rabbits. The approach, which involved topical application or intravenous injection, showed promise for reducing vision loss due to VEGF-mediated blood vessel permeability.
A new study reveals that women are more likely to experience atypical symptoms such as nausea and jaw pain during a heart attack, leading to delayed treatment. Women were also less likely to receive life-saving treatments like beta blockers, statins, and angioplasty compared to men.
A new study by researchers at the University of California, San Francisco found that brief exposure to secondhand smoke can cause blood vessel injury in young and healthy nonsmokers. The study also showed that smoke exposure impairs the body's natural repair mechanisms, leading to persistent effects on vascular health.
Western Australian researchers have made a world-first discovery that could help treat life-threatening tumours by reversing angiogenesis. The team found that the gene RGS5 can normalise blood vessels in tumours, allowing for improved immune cell entry and increased survival rates in laboratory tests.
New data shows that vectors derived from AAV5 can accommodate large genes, including those missing in a mouse model of recessive Stargardt disease. This breakthrough has implications for treating individuals with the disease, which is characterized by progressive loss of sight.
A team of researchers created a functional human vascular system in mice by injecting spheroids of endothelial cells into the skin. The newly formed blood vessels are exclusively made of human endothelial cells and establish contact with mouse vessels, allowing for study of tumor growth and angiogenesis inhibitor effects.
Researchers discovered T-cadherin's role in promoting tumor vascularization, slowing down tumor growth and improving survival. However, the absence of this protein also led to more aggressive disease in the long run.
A new study found that bosentan prevents experimentally induced vaso-occlusive crises in a mouse model of SCD, reducing blood vessel resistance and preventing organ damage. Bosentan may provide a new way to limit VOCs and thereby reduce mortality and morbidity in individuals with Sickle Cell Disease.
Researchers have discovered that stem cells isolated from hair follicles can differentiate into smooth muscle cells that grow new vasculature, making them ideal for engineering cardiovascular tissue regeneration. This breakthrough may lead to the development of new treatments for vascular grafts and cardiac tissue regeneration.
Dr. Watts' research suggests that serotonin may play a role in lowering blood pressure, contradicting previous findings that it causes constriction. She hopes to resolve the 'serotonin puzzle' with her lecture and gather input from fellow physiologists.
A UK physician's groundbreaking study reveals that siRNA therapies may have unintended consequences, such as blocking blood vessel growth in various organs. This discovery underscores the need for cautious approach in clinical trials using gene silencing technology.
Researchers found a blood vessel protein, Robo4, that reverses or prevents damage from two devastating eye diseases. The study's discovery could lead to new drugs to treat and prevent age-related macular degeneration and diabetic retinopathy.
Researchers are investigating how biomechanical forces affect blood vessel growth in the lungs of babies with congenital heart disease. The study aims to understand the mechanisms behind this phenomenon and potentially develop improved treatments for affected children.
A new study finds that smoking and high blood pressure have a synergistic effect, increasing the risk of hemorrhagic stroke. Quitting smoking and lowering blood pressure can significantly reduce this risk, as seen in a cohort of over 563,000 participants.
Researchers found that PPARÓ plays a protective role in the blood vessel wall, regulating vascular structure and function. This discovery provides a molecular explanation for some of the beneficial cardiovascular effects of TZD drugs.
Researchers at Massachusetts General Hospital have identified a new strategy for normalizing tumor blood supply by controlling nitric oxide levels. By selectively suppressing NO production in tumor cells while maintaining it in blood vessels, the study found improved appearance and function of the tumor's blood supply.
A new study shows that tumor blood vessels develop from precancerous stem cells, a type of cell that can become malignant. The findings suggest that screening anti-angiogenic drugs should include these cells to improve their effectiveness in blocking tumor growth.
A mouse study reveals that erythropoietin keeps blood vessels alive and growing in the eye, but administering it at the wrong time may worsen diseases. The hormone's effects depend on timing, with early administration potentially slowing disease progression and late administration accelerating it.
Researchers found that a drug originally used to treat iron poisoning triggered the growth of new blood vessels, leading to significant increases in bone density and regeneration. The treatment has broad implications for improving treatment of bone fractures and musculoskeletal disorders.
Bystolic is a once-daily medication that can be used as monotherapy or in combination with other treatments to reduce blood pressure. It selectively blocks the effects of adrenaline at the heart and vasodilates blood vessels, offering a low incidence of traditional beta blocker side effects.