Articles tagged with Platelets
Researchers discovered PECAM-dependent mechanism for immune cell traffic in the retina, identifying neutrophils as proresolving mediators. Targeting PECAM controlled white blood cell traffic, leading to improved clinical outcomes in uveitis model.
A clinical trial found that refrigerated platelets stored for up to 21 days are just as effective as room-temperature platelets in treating bleeding patients. This discovery could extend the lifespan of platelets by nearly 4-fold, reducing waste and improving access to lifesaving therapy.
Researchers found that cold storage platelets (CSPs) can control active surgical bleeding as effectively as room temperature platelets (RTPs), with potential benefits including reduced wastage and increased platelet availability. CSPs may also enable platelet incorporation into inventory at locations with limited shelf life for RTPs.
Researchers at the Sant Pau Research Institute have identified a new protein involved in platelet activation that could lead to safer antithrombotic therapies. The LRP5 protein is directly involved in arterial thrombus formation and regulates the platelet P2Y12 receptor, reducing thrombus formation with lower bleeding risk.
A new freeze-dried blood product called Thrombosomes has shown promise in treating traumatic brain injuries by reducing swelling and bleeding. The product, derived from platelets with trehalose preservation, has been tested on mice and found to be effective in stabilizing damaged blood vessels.
Researchers have created a detailed molecular map of the thromboxane A2 receptor, which could lead to the development of safer and more effective therapies targeting this clinically important signalling system. The study reveals an unusual activation switch and provides insights into how signalling molecules interact with the receptor.
Researchers at Case Western Reserve University improved electrode performance in brain-computer interfaces by delivering anti-inflammatory drugs directly to the site of implantation using platelet-inspired nanoparticles. The breakthrough has potential applications for treating various diseases involving inflammation and vascular injury.
A study published in JAMA found that cryopreserved platelets were less effective than liquid-stored platelets in achieving hemostasis, particularly at 24 hours after ICU admission. The research suggests that alternative storage methods may be needed for efficient surgical bleeding treatment.
A study found cryopreserved platelets to be a cost-effective option for managing surgical bleeding in cardiac surgery, dominating liquid-stored platelets in this setting. Further investigation is required to assess the economic benefits of cryopreserved platelets in broader populations.
Researchers found a link between platelet aggregation and Alzheimer's biomarkers in midlife, suggesting a potential early warning sign. The study analyzed 382 participants and found that stronger platelet clumping was associated with higher levels of amyloid and tau proteins.
A comprehensive review highlights VET's potential to prevent postpartum hemorrhage and reduce maternal mortality. High-quality research on its use is limited, and a large-scale US-based study is needed to test its effectiveness.
Researchers discovered that inflammatory bowel disease (IBD) leads to blood clotting due to a lack of layilin protein, which prevents platelets from forming unwanted clots. A drug targeting Rac1 activity could reduce excessive clotting and alleviate day-to-day IBD symptoms.
Researchers at University of Pennsylvania discover red blood cells contribute to clot contraction, shrinking and stabilizing blood clots. The finding opens door to new strategies for studying and treating clotting disorders, such as excessive bleeding or dangerous clots like those seen in strokes.
Dr. Wei Li's four-year NIH R01 grant investigates the role of sodium/potassium ATPase in regulating platelet activation and thrombosis risk. The study aims to identify new therapeutic targets to reduce blood clot formation and improve patient outcomes.
Researchers developed a new imaging technique that uses artificial intelligence and high-speed microscopy to track platelet behavior in real-time. The study shows promise for personalizing heart disease treatment by monitoring clotting risk in patients with coronary artery disease.
Researchers identified platelets, C-reactive protein, and chromogranin A as markers that can predict the failure of hormone-sensitive prostate cancer treatment. The study also found that miR-375 expression and lymphocyte-to-monocyte ratio are negative predictors for therapy failure in castration-resistant prostate cancer patients.
A new study found that increased perceived stress can lead to worsened respiratory symptoms and decreased quality of life in individuals with chronic obstructive pulmonary disease (COPD). The study also examined the association between stress and platelet activation, oxidative stress, and systemic inflammation.
Researchers discovered that a high-fat diet activates mechanisms facilitating breast cancer metastasis by promoting platelet activation and fibronectin expression, creating a fertile breeding ground for tumor cells to take root. This study provides new insights into the relationship between obesity and breast cancer spread.
A new antidote, bentracimab, safely restored platelet function in patients on ticagrelor, reducing the risk of bleeding during urgent surgery or major bleeding events. The study showed similar results for surgical and bleeding patients, with 94.3% achieving normal blood clotting after treatment.
Researchers at Thomas Jefferson University discovered two distinct signaling pathways controlling platelet spreading and clot contraction, potentially leading to targeted therapies for bleeding and thrombosis. The findings could also improve treatments for implanted devices like artificial valves and stents.
Researchers developed a microfluidic device to alleviate limitations of conventional blood-filtering machines used in treating hyperleukocytosis in children. The new device separates blood cells by size without platelet loss or adverse effects, enabling safe leukapheresis procedures.
A recent study in Nature Communications reveals that white blood cells employ a novel mechanism to dislodge bacteria from human tissues using brute force and integrin-based adhesion rings. The research, led by Xuefeng Wang, has significant implications for understanding the role of macrophages in cleaning up environmental pollutants.
Researchers at UCSF have discovered that human lung tissue contains hematopoietic stem cells (HSCs) capable of producing red blood cells, platelets, and immune cells. The finding suggests the lungs could be a potent source for life-saving stem cell transplants, particularly for patients with leukemia.
Researchers at TU Wien developed COK-47, a powdery solid substance with remarkable capabilities, by combining organic and inorganic chemistry. In humid environments, the material forms a tribofilm that ensures extremely low friction, making it highly interesting for industry applications.
Research led by University of Pittsburgh scientists found that exposure to long-wavelength red light reduces blood clots in humans and mice. The study's findings have the potential to reduce deaths and disabilities caused by blood clots worldwide.
A study found that ADAMTS13 regulates VWF expression and reduces hepatic platelet accumulation in PA-ILI patients and mice. Systemic administration of recombinant ADAMTS13 decreased platelet accumulation and mitigated liver necrosis.
Researchers from Brazil's Center for Research on Redox Processes in Biomedicine found that high blood sugar can cause thrombosis by altering endothelial function and promoting platelet adhesion. They identified a specific molecular mechanism involving protein disulfide isomerase A1 as a key regulator of this process.
A clinical trial found that two topical treatments, HPE and vitamin C, produce similar reductions in brown spot fractional area and improved skin luminosity and color evenness. The outcomes are comparable to those of more invasive treatments, suggesting a reliable and skin-friendly alternative to traditional cosmetic procedures.
The University of Pittsburgh has been awarded a 10-year, $100 million contract from the U.S. Department of Defense to continue its Linking Investigations in Trauma and Emergency Services (LITES) Network. The network will fund new research on trauma care and expand ongoing studies.
Melbourne researchers have developed a breakthrough in creating lab-grown human blood stem cells, which can be used to treat childhood blood disorders. The cells closely mimic those found in the human embryo and can create specific matched blood cells for transplantation, reducing complications and addressing donor shortages.
Researchers have found that natural killer cells instinctively recognize and attack the XPO1 protein, which drives cancer growth. By targeting this protein, scientists may be able to activate more killer cells to destroy cancer cells. The study suggests that this approach could lead to personalized cancer treatment with less side effects.
Researchers developed a new platelet-centric scoring system to predict platelet hyperreactivity and cardiovascular events. The Platelet Reactivity ExpresSion Score (PRESS) can detect hyperreactive platelets in patients at imminent risk of heart attack and healthy individuals with unknown future risk.
Researchers at LMU University Hospital have discovered that plasmacytoid dendritic cells control the formation of new megakaryocytes from progenitor cells in bone marrow, regulating platelet production and potentially treating Covid-19. The study found pDCs precisely adjust MK quantities to meet bodily needs.
Bonn researchers decode the interaction between monocytes and platelets, revealing a new intercellular communication mechanism that regulates monocyte function. This discovery has implications for treating immune disorders such as immune thrombocytopenia and other inflammatory diseases.
This study investigates the impact of hydrogen sulfide on platelet autophagy in cirrhotic thrombocytopenia and reveals that H2S modulates platelet autophagy via the PDGFR-alpha/PI3K/AKT signaling pathway, which may contribute to thrombocytopenia.
Researchers at UC Santa Cruz discovered a secondary population of platelets that appears with aging, exhibiting hyperreactive behavior and unique molecular properties. This 'shortcut' pathway bypasses normal differentiation processes, producing problematic cells that can cause blood clotting diseases.
Synthetic platelets made of hydrogel nanoparticles mimic the size and shape of human platelets, promoting clotting and healing. The innovative device has shown promising results in animal models and is being developed for clinical use to treat various medical conditions.
A recent study published in Hepatology has investigated the connection between platelet function and complications in patients with cirrhosis. The researchers found that decreased platelet activation predicts hepatic decompensation and mortality, highlighting the importance of personalized therapeutic approaches.
Scientists at the University of Birmingham have identified a mechanism that led to some patients experiencing deadly clotting following Covid-19 vaccination. The team found that Platelet factor 4 (PF4) activates the c-Mpl-Jak2 pathway in platelets, triggering clot formation.
Researchers at the University of Birmingham have created binding molecules to make platelets clump together, enabling validated clinical assays and research tools for studying platelet activation. The 'nanobody' technology shows promise for developing therapeutics for blood and thrombotic disorders.
Researchers at St. Michael's Hospital discovered that engineered platelets can inhibit inflammation and immune responses. The study found that these modified platelets were cleared by the liver and triggered an immunosuppressive response in mice.
Researchers at University of Queensland discovered platelets secrete a protein that rejuvenates neurons in aged mice, similar to exercise. This finding has significant implications for developing drug interventions to promote neurogenesis and enhance cognition.
Researchers have discovered a link between adenovirus infection and an anti-platelet factor 4 disorder, which can cause severe thrombocytopenia. The condition is rare and potentially fatal, and has been reported in patients with viral symptoms and no exposure to heparin or vaccines.
The study reveals the molecular mechanism by which ABCC4 recognizes broad-spectrum substrates, providing a structural basis for rational design of platelet antagonists targeting ABCC4. The research also elucidated the molecular mechanism of ABCC4 in binding and transporting platelet agonists and antagonists.
A new research group led by Zoltan Nagy is working to understand megakaryocyte development and maturation. The team will use single-cell RNA sequencing to identify key factors controlling platelet production, with the goal of improving platelet counts for transfusions.
A recent study from Amsterdam UMC suggests that being overly restrictive in blood transfusion policies may not always be the best approach. Researchers found that patients with severe thrombocytopenia actually experience less bleeding if they receive a platelet transfusion prior to central venous catheter placement.
Researchers have developed a 'vein-on-a-chip' device that mimics the human vein, eliminating the need for animal models in some studies. The device, which includes structures called valves and endothelial cells, allows scientists to study mechanisms of blood clot formation in a realistic manner.
A team of scientists has successfully used synthetic platelets to treat a genetic condition that prevents blood from clotting, known as Von Willebrand disease. This breakthrough treatment could provide new hope for millions of people affected by the disorder, which affects up to 1% of the US population.
A study by an international research team has found a mechanism that occurs in brown bears and paraplegics, preventing the formation of blood clots. The discovery could lead to new treatments for venous thromboembolism, a life-threatening condition.
A team of researchers at Aarhus University has discovered a protein that helps protect the body against blood clots in hibernating bears. The protein, HSP47, is found to be downregulated during winter months, allowing bears to avoid blood clots.
Research discovers that reduced levels of Hsp47 protein can prevent blood clots in humans, pigs, and bears, even when immobile for extended periods. The study's findings could lead to new medicines for people with inherited blood clotting disorders.
A new study has deciphered a central regulatory mechanism of fibrin formation, proposing therapeutic approaches. Glycoprotein V controls thrombin activity and limits fibrin formation.
The HALP score, a novel immune-nutritional marker, has been linked to prognostic ability in different cancer types. It integrates indicators of immune status and nutritional status, showing promise as a cost-effective biomarker.
Researchers found that platelet depletion increased amyloid plaque size and neuronal damage in APP-PS1 mice. However, platelets may have a beneficial role in limiting plaque growth and attenuating neuritic dystrophy at advanced stages of Alzheimer's disease.
A study by Pusan National University researchers found that countries closer to the equator have higher suicide rates due to decreased sunlight exposure. The prevalence of suicide increased with latitude, and was found to be higher in men than women, with age also being a significant factor
Researchers at Children's Hospital of Philadelphia have developed a custom-built application to automate the determination of engraftment after hematopoietic stem cell transplant. The tool has been shown to improve accuracy of reported engraftments, reducing errors in neutrophil and platelet engraftment reporting.
Researchers from the University of Birmingham identified a novel mechanism for platelet activation in pathogenic blood clotting. The mechanism, involving platelet receptor glycoprotein I alpha (GPIbα) and anti-microbial protein S100A8/A9, is not blocked by classical anti-platelet drugs and accelerates fibrin activation and thrombosis.
Researchers at UVA Health System have made a groundbreaking discovery that could boost platelet production on demand to alleviate blood shortages. The finding offers hope for patients with thrombocytopenia and those receiving cord-blood transplants.
Researchers discovered that cats exposed to wildfire smoke and injuries are prone to forming deadly blood clots, associated with cardiovascular disease. The study also identified a novel receptor on cat platelets that may play a role in clotting.
Researchers from University Hospitals developed a transfusion appropriateness algorithm to analyze blood transfusions for adult patients. The algorithm led to a decrease in transfusions and an increase in appropriate use, resulting in cost savings of $2.5 million over 12 months.