Articles tagged with Cerebrospinal Fluid
Researchers found that patients diagnosed with behavioral-variant frontotemporal dementia may have a cerebrospinal fluid leak, which can be treated. The study discovered CSF-venous fistulas in nine patients, who had their symptoms reversed after surgical closure.
Researchers have developed a novel blood-based biomarker, brain-derived tau (BD-tau), that specifically measures non-phosphorylated tau originating from the brain. This breakthrough addresses an unmet need for a blood test that tracks neurodegenerative changes in Alzheimer's disease but not in other dementias.
Researchers have identified a previously unknown component of brain anatomy, dubbed SLYM, which acts as a protective barrier and immune monitoring platform. The discovery is expected to shed light on the glymphatic system's mechanisms and its potential role in brain diseases like Alzheimer's.
Researchers examined associations between APOE ε2 and ε4 alleles, polygenic profiles, and Alzheimer's disease biomarkers. They found links between ε4 alleles with plasma and CSF Aβ42 and CSF tau, as well as differences in associations with tau and Aβ42.
A new biomarker test, called BD-tau, can detect Alzheimer's disease neurodegeneration in blood samples with high accuracy. The test outperforms current methods and correlates well with CSF biomarkers, providing a valuable tool for improved diagnosis and clinical trial design.
A Northwestern University study found that as people age, their cerebrospinal fluid immune system becomes dysregulated, leading to cognitive impairment and neurodegeneration. The discovery provides a new clue to the process of neurodegeneration and may potentially be used to treat inflammation of the brain.
Researchers identified biomarkers that predict severe Covid-19 cases with neurological symptoms, offering potential targets for drug development to prevent consequential damage. They also found a link between impaired blood-brain barrier and excessive immune response.
Researchers developed a novel intranasal delivery system that utilizes the trigeminal nerve to deliver antidepressant drugs to the brain. The system showed efficacy at delivering the same dose as intracerebroventricular administration, highlighting a potential new approach for treating depression and other neurological disorders.
Scientists at WashU Medicine have discovered that immune cells surrounding the brain play a crucial role in clearing toxic clusters of proteins. Treating old mice with an immune-stimulating compound rejuvenates these cells, improving waste clearance and holding promise for treating neurodegenerative diseases like Alzheimer's.
Researchers found elevated C4A levels in first-episode psychosis patients who later developed schizophrenia, correlating with increased IL-1beta and synapse density. This suggests a link between inflammation and genetic risk variants in schizophrenia.
A novel algorithm uses near-infrared spectroscopy to estimate intracranial pressure (ICP) based on hemoglobin levels. The research validates the accuracy of this method using invasive ICP data.
Researchers found positive correlations between lipoxin A4 and cognitive brain functions, as well as its potential to potentiate the endocannabinoid system. The study suggests that reducing levels of this substance may weaken the body's defenses against neurodegeneration.
Scientists discover that methotrexate causes oxidative damage to the cerebrospinal fluid and choroid plexus, leading to cognitive impairment. Adding antioxidants to the CSF may protect against this damage, offering a potential treatment for 'chemo brain'. Researchers are exploring other chemotherapy drugs and testing antioxidant treatm...
A novel method developed by Brazilian researchers can analyze bacterial samples without isolating live bacteria, making it easier to detect antibiotic resistance in Streptococcus pneumoniae. The technique was tested on 873 samples and found that 51% were sensitive to antibiotics, while 17% were resistant.
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.
Researchers have made significant breakthroughs in understanding the molecular mechanisms of supratentorial ependymoma, a rare and aggressive form of childhood brain cancer. By targeting the Hedgehog signaling pathway and primary cilia formation, scientists discovered new potential treatments that overcame resistance to existing drugs.
A new study reveals that inhaled fine particles can take a direct route from lungs to brain through blood circulation, potentially contributing to brain disorders. The particles were found to stay longer in the brain than in other organs, raising concerns about the long-term effects of air pollution on cognitive function.
A recent study at UC San Francisco discovered that fragmented tau protein in diseased neurons could be a new target for existing drugs, potentially improving diagnosis and treatment of Alzheimer's. The researchers found that measuring the fragments in cerebrospinal fluid may help distinguish between different forms of dementia.
A team of researchers has developed a novel method using infrared imaging to assess glymphatic function, which is crucial for understanding neurological conditions. The technique allows for the measurement of temporal dynamics of glymphatic functions and provides insights into brain fluid exchange and clearance.
A new study found that extended space flight increases perivascular spaces in the brains of first-time astronauts, but not those who previously served in space. No neurological deficits were detected despite the changes.
A study at the University of Helsinki found that a strong saline solution can quadruple morphine concentration in the spinal cord, intensifying pain relief. The glymphatic system enables faster drug delivery when administered with hypertonic solutions.
Researchers at Massachusetts General Hospital discovered that skull channels enable cerebrospinal fluid to flow out of the brain and into the bone marrow, where immune cells can screen for signs of infection. This finding has significant implications for conditions like dementia and Alzheimer's disease.
A team of UTHealth Houston researchers has been awarded a $2.85 million NIH grant to study a new technique assessing cerebrospinal fluid in babies with hydrocephalus, which affects 400,000 newborns globally each year.
Researchers found a higher number of small HDL particles in cerebrospinal fluid is associated with better cognitive performance and lower risk for Alzheimer's disease. These particles may play a key role in clearing amyloid beta peptides, which contribute to the disease.
Researchers developed new method to visualize CNS fibroblasts and their intercellular interactions in the CNS. The technique provides a detailed picture of CNS fibroblasts, including their location, size, morphology, and gene/protein expression patterns.
A study found a shift in the profile of specialized lipid mediators from pro-resolving to pro-inflammatory in patients with cognitive impairment, correlating with severity of cognition impairment. The researchers identified novel mechanisms of brain health and potential therapeutic targets for slowing down Alzheimer's disease onset.
Researchers at Mayo Clinic have developed a new antibody test to diagnose multiple sclerosis (MS), a potentially disabling disease of the brain and spinal cord. The validated test measures kappa immunoglobulin free light chains in cerebrospinal fluid, offering a faster and more cost-effective alternative to existing tests.
Researchers at Moffitt Cancer Center have developed patient-derived cells that can be used to study leptomeningeal disease, a rare complication of cancer. The cells provide a new opportunity for scientists to understand the disease and identify potential therapeutics.
Researchers at Johns Hopkins Medicine discovered 110 genes, circular RNAs, lipids and metabolites that differ between medulloblastoma patients' cerebrospinal fluid and healthy controls. These findings provide proof of principle for novel biomarkers to detect and track the disease.
A University of Houston researcher has identified potential biomarkers for neuropsychiatric symptoms of lupus, which include CSF Lipocalin-2, M-CSF, IgM, and complement C3. Elevated levels of these proteins in cerebrospinal fluid may indicate a diagnosis of NPSLE.
Researchers developed a single-use sensor strip that can detect cerebrospinal fluid (CSF) leaks, providing a rapid diagnostic tool for patients with brain and spinal cord injuries. The test uses antibodies specific to proteins found in human CSF, detecting leaks even when other substances are present.
Researchers at University of Gothenburg and Umeå University discovered a link between blood levels of neurofilaments and ALS diagnosis. Blood tests can differentiate ALS from other diseases, offering new opportunities for screening and measuring neurofilaments.
Researchers found elevated protein levels and unexpected antibodies in cerebrospinal fluid of patients with post-COVID cognitive symptoms, suggesting inflammation and a systemic response. The study suggests an activated immune system may be the cause of brain fog, a common after-effect of COVID-19.
A study published in Neuron found that inflammatory markers are elevated even before dementia symptoms appear, suggesting a potential role in neuroprotection. The researchers discovered two proteins linked to a damage control program, which may support the development of new drugs for early detection and treatment.
A new study found that monoclonal antibodies protected aged, diabetic rhesus macaque monkeys from SARS-CoV-2 disease by reducing signs of inflammation. The treatment prevented viral RNA in the cerebrospinal fluid and infiltration of activated immune cells, suggesting a potential preventative measure for elderly residents during outbreaks.
Researchers at St. Jude Children's Research Hospital have developed a test to detect measurable residual disease (MRD) in children treated for medulloblastoma, identifying those at risk of relapse earlier than traditional imaging scans. The study found that cell-free DNA in cerebrospinal fluid can be used to predict relapse and potenti...
A new study suggests that a novel treatment involving the administration of an enzyme that degrades neutrophil nets may prevent brain swelling and improve waste clearance in rats with bacterial meningitis. The treatment could be combined with antibiotics if needed.
Researchers found that early accumulation of tau proteins in the brain, measured by PET scanner, is more effective at predicting memory impairment than other biomarkers. The study suggests that tau PET should be recommended for clinical prognostic assessment of cognitive decline in Alzheimer's patients.
Researchers analyzed brain scans of 193 COVID-19 patients, finding a link between brain imaging and the virus's presence in cerebrospinal fluid. The study suggests hyperintense lesions and leptomeningeal enhancement are indicative of inflammation rather than infection.
Research finds sleep-dependent global brain activity plays a crucial role in clearing Alzheimer's disease-related toxin buildup, with weaker connection seen in individuals at higher risk or with existing disease. The study suggests this activity could serve as a future marker for clinical evaluation.
A study from Duke University Medical Center found that individuals with an APOE4 gene variant associated with increased Alzheimer's risk have lower levels of inflammatory molecules in their cerebrospinal fluid, suggesting potential damage to synapses.
A novel form of an Alzheimer's protein found in spinal fluid indicates what stage of the disease a person is in and tracks with tangles of tau protein in the brain, which are toxic to neurons. The discovery could lead to better diagnostics and accelerate efforts to find treatments for Alzheimer's disease.
A proof-of-concept study shows cerebrospinal fluid as a liquid biopsy for precise characterization and real-time tracking of medulloblastoma. Circulating tumor DNA analysis provides genomic insights into disease evolution, enabling more effective treatment strategies.
The study found that cerebrospinal fluid from LMM patients contains proteins critical to melanoma cell survival and growth, including TGF-β1. The researchers hope their data will provide insights into potential therapeutic targets for delayed disease progression.
A team of scientists has identified two genes, MS4A4A and TREM2, that influence the risk for both late-onset and early-onset Alzheimer's disease. Variants in these genes affect the brain's immune cells, which may hold a new strategy to delay or protect against the disease.
A study found that HIV cells can be detected in the cerebrospinal fluid of half of participants with nearly a decade of strict treatment, associated with higher likelihood of cognitive deficits. The presence of these cells may indicate an important reservoir for the virus in the brain that cannot be overlooked.
A team of Penn State researchers found that fine particles can disrupt the flow of cerebrospinal fluid through the nose, potentially contributing to neurological diseases. The study suggests a possible mechanism for how air pollution may lead to conditions like Alzheimer's and Parkinson's.
A new study found that approximately half of former professional athletes with multiple concussions had higher than normal levels of tau protein in their cerebrospinal fluid, linked to chronic traumatic encephalopathy (CTE). The athletes with high tau levels scored lower on cognitive tests and brain scans showed white matter damage.
Researchers at Osaka University developed a fully automated tool to assess α-synuclein aggregation in cerebrospinal fluid using ultrasonication. The HANABI device can accurately detect patients with Parkinson's disease and has potential for early diagnosis and treatment assessment.
Researchers at Brigham and Women's Hospital have developed a blood test that detects different populations of tau fragments, which are specifically elevated in Alzheimer's disease. The test has shown promise in initial studies with high diagnostic sensitivity and specificity, but further validation is needed to confirm its effectiveness.
Researchers at University of Illinois Chicago used graphene to identify cerebrospinal fluid from patients with ALS, multiple sclerosis, or no neurodegenerative disease. The study found unique changes in graphene's vibrational characteristics depending on the patient's condition.
A study of Russian cosmonauts reveals that space travel alters the brain's tissue volume, particularly in grey and cerebrospinal fluid areas. Changes persist for at least six months after returning to Earth, with potential implications for cognition and vision.
A USC study reveals that the brain's cerebrospinal fluid channels a hunger molecule, melanin-concentrating hormone (MCH), which stimulates appetite. The researchers found that MCH release is influenced by circadian clock and daily mealtime routine.
A new point-of-care test measures CXCL13 concentration in cerebrospinal fluid to diagnose neuroborreliosis, allowing for targeted antibiotic treatment and reducing unnecessary treatments. The test provides quick results, reducing the time between diagnosis and treatment initiation.
Researchers found higher sodium concentrations in the cerebrospinal fluid of migraine patients compared to healthy controls, potentially aiding in diagnosis and understanding of migraines. The study used a novel magnetic resonance technique called cerebral sodium MRI to visualize sodium levels in the brain.
Researchers analyzed EGFR mutation status in blood and cerebrospinal fluid to identify relationship with neurological symptoms and leptomeningeal metastases. The study found higher rates of EGFR mutations in cerebrospinal fluid for patients with brain metastases, offering new non-invasive testing options.
Researchers at ETH Zurich have identified that cerebrospinal fluid exits the cranial cavity through lymph vessels in mice, rewriting anatomy textbooks. The study found that this pathway is responsible for flushing out unwanted substances and may offer a starting point for treating neurodegenerative diseases such as Alzheimer's.
Researchers are exploring the role of microRNAs in brain structure changes associated with neuropsychiatric disorders. The study aims to identify biomarkers in blood and cerebrospinal fluid that correlate with brain variations.
A molecule called polyGP accumulates in the CSF and blood cells of patients with C9ORF72 ALS, offering a potential pharmacodynamic marker for therapeutic responses. Detection of polyGP in asymptomatic carriers may help identify patients at risk before symptoms appear.
A new study has developed an algorithm for accurate CJD diagnosis, achieving 100% sensitivity and specificity. The method uses cerebrospinal fluid samples or nasal swabs, showing promise for early detection.