Articles tagged with Blood Brain Barrier
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The chikungunya virus infects CD14+ CD16+ monocytes and affects proteins holding epithelial cells of the blood-brain barrier together. The study found severe alterations in coagulation cascade, hemodynamic damage in organs, and high levels of inflammatory cytokines.
A research team developed a model of the blood-brain barrier using modularized tissue derived from human cells. The 'Tissue-in-a-CUBE' system accurately mimics the real blood-brain barrier in terms of structure and function, allowing for the testing of drugs without animal testing.
A team of scientists from the Beckman Institute has received a $3 million grant to develop diagnostic tools and imaging agents for the early detection of Alzheimer's disease. They will use a combination of PET and MRI scans to target smaller beta-amyloid peptides and other signs of neuroinflammation and oxidative stress.
Researchers discovered a new role for Mfsd7c in exporting excessive choline from the brain. The study suggests that targeting this protein could lead to therapeutic interventions for Alzheimer's disease and other neurological disorders.
A team of researchers has devised a method to deliver mRNA into the brain using lipid nanoparticles, offering new hope for treating conditions like Alzheimer's disease and seizures. The approach uses a special keycard-like system to bypass the blood-brain barrier, allowing therapeutic agents to enter the brain and target specific cells.
Rice bioengineer Jerzy Szablowski and colleagues have engineered a synthetic serum marker that enables non-invasive neural monitoring by tracking gene expression dynamics in the brain. This breakthrough allows researchers to investigate brain development, cognitive function and neurological diseases more effectively.
Researchers develop nanoparticles that selectively bind to activated astrocytes and microglia cells in the hippocampus of Alzheimer's patients, demonstrating increased nanoparticle transport across the blood brain barrier with age. The study provides valuable insights into advancing nanoparticle-based drug delivery for treating neurode...
Researchers developed a novel platform to transport therapeutic antibodies across the blood-brain barrier using a biocompatible polymer. The method showed promising results in both in vitro and mouse-model experiments, suggesting enhanced brain delivery of cancer-fighting antibodies without inducing adverse effects.
Scientists have developed a novel organ-on-a-chip device with customizable screen-printed electrodes for measuring endothelial barrier integrity. The device overcomes traditional electrode fabrication challenges, providing a reliable and accurate method for studying the crucial roles of endothelial barriers in healthy and disease states.
Researchers developed a nanotechnology method to deliver medication through the blood-brain barrier, overcoming its selectivity and expanding therapeutic options for glioblastoma treatment. The technique demonstrated improved tumor shrinkage and survival rates in mice, paving the way for further preclinical studies.
Researchers have developed a noninvasive brain biopsy technique using ultrasound and microbubbles to access brain tissue without surgery. The technique increases circulating tumor DNA by 1.6- to 5.6-fold, providing valuable genetic information for treatment decisions.
A new NIH grant will investigate the impact of combined alcohol and e-cigarette use on the blood brain barrier, a cell layer regulating substance passage into the central nervous system. The study aims to identify mechanisms behind damage and potential biomarkers for clinical use.
Researchers discovered that the blood-brain barrier in carpenter ants produces a hormone-degrading enzyme, Juvenile hormone esterase (Jhe), which controls JH3 hormone levels in the brain, affecting behavior. Manipulating Jhe levels can reprogram ant castes and even change food-seeking behavior in fruit flies.
Researchers at UCLA Jonsson Comprehensive Cancer Center aim to overcome brain tumor's limited treatment options with ERAS-801, a brain-penetrant inhibitor showing promise in preclinical models. The team is testing the treatment in early clinical trials for patients diagnosed with glioblastoma.
University of Louisville researchers have received a five-year, $11.7 million National Institutes of Health grant to investigate the connection between microorganisms and disease. The study will focus on various chronic conditions, including Alzheimer's disease, heart disease, diabetes, periodontitis, and colorectal cancer.
Using a sensitive mass spectrometry-based secretome approach, researchers have identified hundreds of molecules that are cleaved from the cell surface of astrocytes, providing a unique database of MMP-2/-9 substrates specific to blood-brain barrier formation and maintenance. This discovery sheds light on the molecular processes essenti...
A new study published in Developmental Cell reveals that a signal produced by neurons is essential for the proper formation of the blood-brain barrier during embryonic development and helps maintain its integrity throughout adulthood. The findings could lead to more effective ways of delivering cancer or psychiatric medicines into the ...
Researchers developed a model of the blood-brain barrier to prevent newborn meningitis treatment, with a 50% mortality rate in developing countries. The organ-on-a-chip platform enables rapid and accurate testing of drugs for safety and efficacy, promising to improve treatment outcomes.
Researchers developed a new therapeutic molecule that activates WNT signaling to restore the blood-brain barrier's normal function. The treatment showed promise in treating conditions such as multiple sclerosis and ischemic stroke by reducing the severity of strokes and improving survival rates.
Researchers at Gladstone Institutes discovered that blood leaking into the brain triggers toxic genes in microglia, turning them into harmful cells that destroy neurons. Fibrin, a blood protein, is responsible for this process, which can lead to cognitive dysfunction and motor impairment.
Researchers at UTHealth Houston are investigating the role of fibrin and fibrinogen in traumatic brain injury and hemorrhagic shock. The four-year grant will fund Phase II of a stem cell clinical trial evaluating whether mesenchymal stem cells reduce chronic neuroinflammatory response to traumatic brain injury.
A multi-institutional team of experts is studying how to use focused ultrasound to create a temporary gateway through the blood-brain barrier to deliver cancer medicine. Researchers aim to develop a personalized medicine approach in which they can test drugs on patient tumors and predict treatment effectiveness.
A recent study by Carolyn Elya reveals the molecular mechanisms behind summiting behavior in infected fruit flies. The researchers discovered that hormonal axes mediate this behavior, and that fungal cells invade the fly's brains during summiting.
Researchers have developed a zebrafish model to understand lipid transport across the blood-brain barrier, crucial for healthy nervous system development. The study provides key insights into how omega-3 fatty acids, particularly DHA, are transported into the brain and may enable targeted drug delivery.
Scientists successfully opened the blood-brain barrier using a novel ultrasound device, delivering chemotherapy to treat glioblastoma patients. The treatment increased drug concentrations by 4-6 times and was safe and well-tolerated.
A nationally representative sample of community-dwelling adults found that stroke prevalence remained stable overall, but increased among men. The study's estimates underestimate the total burden due to institutional settings not included in National Health and Nutrition Examination Surveys.
Researchers used microfluidic devices to track what happens to cancer cells as they migrate and take root in the brain. They found that Dkk-1 triggers cancer cell migration, and reducing its levels near tumor cells may disrupt crosstalk between brain niche cells and cancer cells.
Scientists from Tokyo Medical and Dental University find that antibody fragments encapsulated in nanomicelles can reduce toxic Aβ species in the brain of an Alzheimer's disease model mouse. This breakthrough delivers treatment to where it is needed most, potentially slowing AD progression.
A research group at Uppsala University has developed an artificial blood-brain barrier model that can validate the effectiveness of antibodies in reaching the brain. The model allows for the testing of antibodies without the need for animal experimentation, providing a more efficient and cost-effective alternative.
Researchers developed an open-microfluidic 3D blood-brain barrier model to study the complex structure and function of the barrier. The model allows for simultaneous measurement of permeability and morphological changes, providing new insights into how the barrier responds to injuries and diseases.
Bonn researchers create micropipette-based local perfusion of capillaries to analyze BBB transport at the cellular level, providing insights into epilepsy and drug development. The approach reveals the barrier's integrity remains largely intact, offering a tool for evaluating active ingredients' brain penetration.
Researchers at UW-Madison developed silica nanocapsules that can carry CRISPR tools across the blood-brain barrier, enabling brain-wide gene editing for disorders like Alzheimer's and Parkinson's. The technology has potential for non-invasive delivery of gene therapies.
Researchers found that mice exposed to WTCPM dust exhibit impaired spatial recognition and memory, as well as changes in genes related to immune-inflammatory responses. The study suggests a peripheral-brain immune inflammatory 'cross-talking' mechanism that may increase cognitive decline risk.
Researchers at Rice University have developed a new fluorescent dye that can cross the blood-brain barrier, allowing for noninvasive brain imaging and differentiation between healthy tissue and tumor cells. The dye's long-lasting fluorescence enables stable imaging over extended periods.
A new study found that obeticholic acid can reverse cognitive impairment in patients with cholestatic liver disease, improving short-term memory and restoring brain function. The study used a rodent model of bile duct ligation-induced cholestasis and found that the drug significantly improved cognitive deficits.
Researchers have engineered a family of adeno-associated viral vectors that can deliver cargo to the primate brain, offering a safer and more efficient way to treat genetic diseases. The PAL family of AAVs has been shown to be three times better at delivering their cargo into the brain than current leading AAV delivery vehicle AAV9.
Researchers demonstrate a new way to deliver medication to malignant brain tumors in mice, using a modified peptide that can penetrate the blood-brain barrier. The study shows promising results, with a 50% increase in survival rate for treated mice, and offers hope for future treatment breakthroughs.
A new study successfully tested an implantable pump that delivers chemotherapy directly to the brain, bypassing the blood-brain barrier. The treatment effectively kills brain tumor cells and offers a safe way to treat patients with brain cancer.
Scientists have uncovered the mechanics of the blood-tumour barrier in medulloblastoma, a malignant paediatric brain tumour. By silencing a specific ion channel, researchers found that chemotherapy medication etoposide was better able to cross the barrier and treat the tumour cells.
Researchers at Linköping University identified the brain cells necessary for a fever reaction in mice, finding that prostaglandin production in these cells is both necessary and sufficient for triggering a fever response. This breakthrough sheds light on the body's defense mechanism against infection and inflammation.
WayPath Pharma has been awarded a $225,000 Phase I Small Business Technology Transfer (STTR) award to develop new metabolic drugs targeting tumor stem cells and crossing the blood-brain barrier. The funding aims to advance treatment options for glioblastoma, a highly aggressive brain cancer with limited treatment options.
A Brazilian study reveals that SARS-CoV-2 targets astrocytes in the brain, reducing neuron viability and causing damage. Infection was confirmed using MRI scans of mild COVID-19 patients and experiments on human nerve cells.
Researchers from Xi'an Jiaotong-Liverpool University found that brain stimulation combined with a nose spray containing nanoparticles can improve recovery after ischemic stroke. The treatment increased cognitive and motor functions, and weighed more quickly than those treated with TMS alone.
Researchers at Duke University have identified a previously unknown barrier that separates the bloodstream from smelling cells in the upper airway of mice, which may hinder the effectiveness of vaccines. The BOB barrier also allows antibody-secreting plasma cells to produce neutralizing antibodies locally.
A new approach to making nanocarriers for drug delivery features a soft, fat-like liposome interior surrounded by a hard shell of gold nanoparticles. The hybrid nanocarriers are designed to transport medicine across the body's blood brain barrier, a major hurdle protecting the brain from pathogens.
Tel Aviv University researchers discovered that skin cancer cells interact with astrocytes in the brain, promoting metastasis. By inhibiting this interaction using existing treatments, they delayed the spread of melanoma to the brain by 60-80%. This breakthrough has implications for treating advanced-stage melanoma.
A novel stem cell-gene therapy has been shown to be safe in humans, with no serious side effects reported in the first trial. The treatment targets motor neurons that die in patients with amyotrophic lateral sclerosis (ALS), a fatal neurological disorder.
A new study from USC researchers uncovers the sequence of early molecular changes caused by APOE4, a discovery that may help identify potential treatment targets in the brain's blood vessels. The research reveals problems with the blood-brain barrier and synapses, leading to behavioral deficits and cognitive dysfunction.
Research at Karolinska Institutet reveals the glymphatic system malfunctions during bacterial meningitis, causing a buildup of toxic garbage that damages brain cells. The study found increased signs of neuroinflammation and neuronal damage in rats infected with Streptococcus pneumoniae.
A study reveals that four nonexcitatory amino acids can cause irreversible brain destruction after a stroke or traumatic brain injury. The amino acids flood the brain cells, leading to swelling and cell death.
Researchers at Buck Institute discover that blood-brain barrier cells influence neuron function and can cause problems rather than just being protective. This finding opens up new avenues for therapies targeting neurodegenerative diseases like Alzheimer's and Parkinson's.
A new study demonstrates that glyphosate successfully crosses the blood-brain barrier and enhances TNF-α levels in mice. The herbicide is linked to increased production of soluble beta amyloid and reduced neuron viability, suggesting potential hazards to neurological health.
A third of COVID-19 patients experience neurological symptoms due to SARS-CoV-2's effect on the central nervous system. Researchers now investigate mechanisms of SARS-CoV-2 signaling in the CNS microvasculature with a new NIDA grant.
A new study from UTHealth Houston found that whole blood exchange treatments decreased amyloid plaque formation in mice with Alzheimer's disease-causing amyloid precursor proteins. This approach has the advantage of treating the disease in the circulation instead of the brain, potentially bypassing the blood-brain barrier.
Researchers have developed a molecule that uses nanotechnology, chemotherapy and a monoclonal antibody to target glioblastoma multiforme, the most aggressive type of brain cancer. The treatment showed promise in isolated cells and animal models, with significant reductions in tumor volume and no increased toxicity.
A novel BRAF inhibitor, C1a, has been developed to cross the blood-brain barrier and treat melanoma brain metastasis. The study found that C1a triggered robust responses in patient-derived models and outperformed approved BRAF inhibitors, achieving significant increases in survival rates.
A new study published in Nature reveals that a small population of neurons near the base of the brain can induce symptoms of sickness, including fever, appetite loss, and warm seeking behavior. The researchers found these neurons have receptors capable of directly detecting molecular signals from the immune system.
Researchers will track changes in the blood-brain barrier, neurovascular function, and cognition in over 850 participants with genetic variants at risk of developing Alzheimer’s disease. The study aims to improve understanding of the onset and progression of Alzheimer’s disease and identify effective interventions.
A team of MIT researchers has developed drug-carrying nanoparticles that can efficiently penetrate the brain and kill glioblastoma cells. Using a human tissue model, they showed that the particles could get into tumors and deliver chemotherapy drugs, including cisplatin, which effectively killed tumor cells.
Researchers at Michigan Medicine developed a nanoparticle-based inhibitor that successfully triggers the immune system to eliminate brain tumors in mouse models. The approach breaks the shield built by glioma cells around the immune system, allowing the immune cells to attack and delay tumor progression.