Articles tagged with Blood Vessels
A new progeria-on-a-chip model has provided insights into the mechanisms of premature aging and vascular disease. The study found that cells from HGPS donors exhibited an exacerbated response to biomechanical strain, leading to increased inflammation.
Researchers at UC San Diego have successfully printed a functional blood vessel network using 3D bioprinting, addressing a major challenge in tissue engineering. The technology enables the creation of complex microstructures with high resolution, using inexpensive and biocompatible materials.
Research suggests that physical activity can have improved effects on muscle and blood vessel function in women in early postmenopause. The study found that high-intensity cycling training improved physiological parameters in this age group, providing a potential benefit against negative estrogen loss and aging effects.
Scientists are investigating how increased cell death from high blood pressure leads to inflammation and further increases blood pressure. They aim to identify targets that could block unintended results without suppressing the natural immune response.
A new UCL study reveals that tumor growth exerts mechanical forces on blood vessels, compressing or collapsing them to block oxygen delivery. This can lead to uneven drug delivery and reduced treatment effectiveness.
Researchers discovered that immune cells use an active process to create gaps in blood vessel walls, involving the breakage of thin filaments and rapid reassembly. This process allows immune cells to squeeze through and survey organs for problems or join the fight against pathogens.
A UBC study finds that one session of interval weight-training can improve blood vessel function and reduce the risk of Type 2 diabetes complications. The study demonstrates that simple leg exercises involving weights can be an effective tool to manage disease, especially for those with Type 2 diabetes.
Scientists at the NIH used advanced brain imaging technology to study cerebral malaria, revealing how the disease kills thousands of people each year. The research suggests a potential treatment involving removing CD8+ T cells from blood vessel walls, increasing survival rates.
Immune system cells, specifically cytotoxic T cells, attack blood vessels in the brain, causing fatal swelling and damage. Inhibiting these cells with antibodies prevents the condition, suggesting a potential new approach to treating cerebral malaria.
Restoring dysfunctional blood vessels in tumors can prevent cancer cells from spreading and improve chemotherapy delivery. Healthy tumor vessels also enhance the supply of immune cells, which is crucial for emerging immunotherapy treatments.
Researchers have developed a new biomaterial that can prevent uncontrolled bleeding in patients who cannot form blood clots. The injectable material, known as a shear-thinning biomaterial (STB), is made up of gelatin and nanoparticles and has been shown to be effective in animal models.
New UCL research reveals that blood vessels play a vital role in telling neural stem cells when and how to reproduce. The study found that preventing blood vessel growth interferes with normal neuron production, causing stem cells to disappear from the brainstem.
A study published in the American Journal of Human Genetics identified a rare genetic variation in the RNF213 gene that is linked to an increased risk of intracranial aneurysm in French-Canadian individuals. The study found that 10% of patients with IA had at least one of these variants, compared to 0% in controls.
A study by Drs. Sapieha and Mallette reveals a program of accelerated aging in the retina, leading to cellular senescence and production of factors that contribute to blinding disease. Interfering with this process using novel drugs improves blood vessel regeneration and reduces retinal damage.
Research found that exposure to fine particulate matter air pollution is associated with abnormal changes in the blood, including increased micro-particles indicating cell injury and death, and proteins that inhibit blood vessel growth. This suggests that living in a polluted environment could promote the development of high blood pres...
Researchers at Aarhus University combined two scanning technologies to create high-resolution images of cancer tumors in mice, providing detailed mapping of blood vessels. This method could lead to the development of more effective drugs and personalized treatment plans.
Researchers found that manipulating macrophages' metabolism can prevent tumor cells from spreading by stealing glucose, leading to a structured vessel barrier. The study's findings may lead to new cancer therapies targeting mTOR inhibitors and improving treatment outcomes for patients.
Researchers discovered that a protein called SPARCL1 can prevent the formation of new blood vessels, inhibiting tumor growth in patients with a good prognosis. In contrast, tumors with poor prognoses lack this protein, leading to continued tumor growth.
A new study found that carefully administering small doses of hydrogen sulfide can restore mitochondrial efficiency and prevent hyperglycaemia-induced damage to blood vessels. This could lead to new treatments for common heart and blood vessel complications associated with diabetes.
Researchers discovered that transplanted bone marrow-derived endothelial progenitor cells (EPCs) can contribute to better blood vessel growth, leading to reduced recurrent miscarriages. The study found that EPCs homed to the placenta and worked to normalize uterine blood vessel patterns, resulting in a reduced rate of miscarriage.
Researchers identify Cloche, a bHLH-PAS transcription factor, as the key gene controlling blood vessel and blood cell development in embryos. The discovery, made after 20 years of searching, has significant implications for regenerative medicine and personalized stem cell therapy.
The dengue virus protein NS1 disrupts the innermost layer of blood vessels, making them more permeable and causing leakage. This disruption leads to fluid accumulation in the lung, a major symptom of severe dengue disease.
Researchers found that High Intensity Focused Ultrasound can selectively target and destroy placental blood vessels, potentially enabling a non-invasive procedure to separate the placenta in TTTS. The technique could reduce chance of complications and improve outcomes for affected twins.
A new gene called Wars2 has been identified as a key player in blood vessel formation, providing a potential target for new therapies against cancer and heart disease. The discovery was made by researchers at Duke-NUS Medical School who found that inhibiting Wars2 function impaired blood vessel formation in rats and zebrafish.
A new neuroendovascular technique called ADAPT has shown impressive 90-day outcomes for stroke patients with large-vessel clots. Approximately 58% of patients achieved a good outcome after thrombectomy using the direct-aspiration, first pass technique.
Therapeutic stem cells exit the bloodstream via a distinct process called angiopellosis, where endothelial cells actively push them out of blood vessels. This alternative mechanism allows for longer exit times and multiple cell exits at once, with implications for cancer research and intravenous therapies.
Researchers developed bioengineered blood vessels that appear safe and functional after implantation in dialysis patients. The vessels showed no signs of rejection and maintained their mechanical integrity, with a 90% durability rate compared to traditional synthetic grafts.
Research found a significant increase in first-time stroke hospitalizations among young Danish adults between 1994 and 2012. The study suggests lifestyle-related risk factors, such as diabetes and obesity, may contribute to this trend.
Researchers at Oklahoma Medical Research Foundation found that an enzyme thought to be beneficial can pose significant danger to developing embryos. They discovered excessive plasmin activity can lead to liver blood vessels becoming fragile and prone to bleeding.
Tumor cells switch to glycolysis, a form of anaerobic energy production, allowing them to continue growing even without new blood vessels. This discovery opens up new possibilities for long-term cancer treatments by inhibiting anaerobic energy production or transport of lactic acid.
Research finds that blood vessels grow thicker or branch based on collective cell behavior and oscillating signals, providing new insights into diseases like diabetes and cancer. The discovery could lead to therapies that renormalize blood vessels or inhibit their growth.
A new study reveals an unconventional antibody that targets the patient's vascular response to sepsis, converting a harmful protein into a protective one. This approach stabilizes blood vessels, strengthens barrier function, and quells systemic inflammation, prolonging survival in mice with sepsis.
Researchers at IBS Center for Vascular Health have created a new targeted agent to mitigate sepsis progression by strengthening and protecting blood vessels. This approach, utilizing the Tie2 receptor and anti-angiopoietin-2 antibody ABTAA, has shown enhanced survival rates in severe sepsis models up to 70%.
A Finnish group found that vascular endothelial growth factor B (VEGFB) can increase the density of adipose tissue vasculature, reducing inflammation and improving insulin function. Blocking the VEGFR1 receptor enhances the treatment effect by stimulating catabolic processes in adipose tissue.
Mutations in the PIK3CA cancer gene drive venous malformations, a common blood vessel abnormality causing painful and disfiguring lesions. Repurposing PI3K-inhibiting cancer drugs may offer a potential therapeutic avenue for patients with these vascular diseases.
By regulating protein complexes in blood vessel walls, researchers have identified a method to suppress leakage and edema formation. This discovery may lead to improved cancer therapy by allowing drugs to reach tumors more effectively and reducing metastatic spread.
The 2016 UW-Madison Cool Science Image contest winners were selected based on scientific content and aesthetic qualities. The contest showcased images and videos from atmospheric science to zoology, including a pinhole camera image of the sun and a micrograph of breast tissue.
Researchers found that photoreceptors use both glucose and lipids as fuel substrates, debunking previous scientific beliefs about the cause of abnormal blood vessel growth leading to blindness. This discovery opens new therapeutic avenues for retinal diseases such as AMD.
A new study suggests that poor sleep, like sleep apnea, can promote cancer development by stimulating the formation of blood vessels in tumors. Researchers found that intermittent hypoxia, a common consequence of sleep apnea, increases vascular progenitor cells and endothelial cells within tumors.
Experiencing physical violence in adulthood may increase the risk of women developing heart and blood-vessel disease. Women who had experienced physical violence were more than one and a half times more likely to have narrowing of the main blood vessels in the neck, an early sign of increased risk for stroke.
Research finds that lymphatic vessels play a critical role in obesity development, with chyle leakage triggering weight gain and insulin resistance. Restoring lymphatic function reverses obesity in Prox1-haploinsufficient mice.
Researchers identified EPHA2 as a key regulator of breast cancer cell spread from blood vessels. The study sheds light on how tumour cells interact with blood vessel walls and exchange information to control their movement.
A team of researchers has revealed the molecular motions behind elastin's flexibility, showing how scissor-shaped molecules assemble into long chains that give tissues their stretchability. The study provides insights into the material's durability and could lead to new materials for engineering applications.
Researchers found a significant increase in blood vessel and pain receptor growth among patients with calcific tendinitis, leading to chronic inflammation and severe pain. The study suggests new ways to manage the associated pain and may provide insights into other tendon disorders and diseases.
Researchers at Northwestern University have developed a new biodegradable material that can reduce scarring in blood vessels, potentially preventing deadly blockages. Early tests show the material can reduce cell migration by 57 percent.
Researchers discovered a novel pathway involved in blood vessel occlusion by increasing LOX activity in platelets. This led to reduced clotting time and increased blood clot formation, pointing to the specific receptor responsible for platelet adhesion.
New research found that even very healthy individuals with reduced kidney function experience changes in the heart, including increased left ventricle mass and elevated troponin levels, indicating potential for heart disease. The study tracked living kidney donors to explore direct effects of diminished kidney function on the heart.
A Drexel University biomedical engineer is exploring the potential of macrophages to grow blood vessels and promote wound healing through a natural process. The goal is to develop a drug delivery strategy that controls macrophage behavior and encourages vascularization by the body's own cells.
Researchers at New York University found that individuals with autism have unstable blood vessels, disrupting brain function and circulation. The study identified a correlation between angiogenesis and neurogenesis, potentially leading to novel therapeutic interventions.
Researchers at the University of Virginia Health System have identified the stem cells that develop into the blood vessels within the kidney, a critical step toward growing replacement kidneys. By understanding how these vessels form and function, scientists may be able to create functional organs for patients in need.
A study published in Gastroenterology reveals that the inhibition of CPEB4 protein can prevent the development of abnormal blood vessels associated with cirrhosis. This finding has significant implications for the treatment of this disease, which is responsible for a high rate of hospital admissions and use of health resources.
Scientists have confirmed that blood vessel-like structures found in an 80 million-year-old hadrosaur fossil are original to the animal, not biofilm or contaminants. The discovery provides insight into how proteins can modify and change over millions of years.
A study published in the journal Brain found that amyloid plaques around blood vessels in the brain can disrupt astrocyte function, leading to reduced cerebral blood flow. This could account for symptoms such as memory lapses, impaired decision-making, and personality changes associated with Alzheimer's disease.
Researchers from Kumamoto University and The University of Tokyo have elucidated the control of cellular movement during blood vessel formation, showing that tip cells and trailing cells move at different speeds and directions. This study provides new insights into the complex cellular motion involved in blood vessel proliferation.
A UMass Amherst biologist is developing a new liver model using extra-embryonic tissue to study liver function and mechanisms. The model, which uses tissues from the yolk sac, offers a simpler alternative to traditional liver models, allowing for more efficient analysis of gene expression and protein production.
Scientists have developed a novel method to quickly dissolve away clots that completely obstruct blood vessels in the brain. A drug-device combination using an intra-arterial device restores blood flow to obstructed vessels, effectively clearing the blockage.
A research team at Beth Israel Deaconess Medical Center has identified a small molecule that prevents the overgrowth of blood vessels in animal models of aged macular degeneration and retinopathy of prematurity. The new findings show that this molecule, named Vasotide, can be delivered in eye drops, offering a promising alternative to ...
A recent study published in Nitric Oxide found that consuming beet juice rich in nitrates can restore reduced blood vessel function at high altitudes. This natural substance helps the body acclimatize to lower oxygen levels by converting nitrate into nitric oxide, which improves blood vessel relaxation.
Research found that psoriasis patients had high levels of blood vessel inflammation, even at low cardiovascular risk. The most extensive forms of psoriasis were associated with a 51% increase in blood vessel inflammation.
A Vanderbilt study found that breaking down fibrin is essential for fracture repair, contradicting previous assumptions. The study also suggests that impaired fibrin clearance may be a key factor in conditions like obesity and diabetes impeding fracture healing.