Articles tagged with Blood Samples
Researchers found that people with well-controlled HIV have more fibrosis in their fat tissues, leading to insulin resistance and type 2 diabetes. The study also identified a blood marker of scarred fat, which may help predict metabolic future for individuals with HIV.
Babies born with low birth weight are at higher risk for heart, lung, and metabolic diseases later in life due to the overexpression of axon guidance proteins. These proteins play a key role in developing neurons and organs, and their increased levels are associated with poorer lung function in adulthood.
A team of researchers has identified a distinct blood protein pattern that can accurately diagnose pediatric inflammatory bowel disease and differentiate between its two main forms. The discovery, using proteomics technology, showed high accuracy in identifying IBD and distinguishing ulcerative colitis from Crohn's disease.
Researchers have developed a new method that can detect cancer with low levels of DNA in the blood, providing more detailed information about tumour composition. This could lead to better care for cancer patients, enabling closer monitoring of treatment progress and more informed decision-making.
International experts in laboratory medicine, osteoporosis, and chronic kidney disease recommend ending routine reporting of albumin-adjusted ('corrected') calcium. The practice may misclassify patients and compromise care due to unreliable correction formulas and variability in local measurements.
Researchers have identified specific changes in genetic material that can predict the effectiveness of chemotherapy in young adults with germ cell tumors. A blood test based on these changes could help doctors make personalized decisions about treatment.
A four-biomarker blood panel including aminopeptidase N, polymeric immunoglobulin receptor, and thrombospondin-2 has been shown to enhance the detection of pancreatic ductal adenocarcinoma compared to CA19-9 alone. The panel correctly detected 91.9% of pancreatic cancers across all stages.
A study published in EBioMedicine found changes in blood samples from almost 1,000 people hospitalized for COVID-19 may pinpoint patients at risk of long-term lung disease. The study identified elevated levels of certain molecules, which could lead to the development of simple blood tests to detect ongoing lung problems.
Researchers have developed a system called CytoDiffusion that uses generative AI to study the shape and structure of blood cells. The system can accurately identify normal blood cell appearances and spot unusual or rare cells that may indicate disease, outperforming existing systems in tests.
Research shows that infants of stressed mothers have an earlier and faster tooth eruption, with more teeth by six months of age. Cortisol levels during late pregnancy are associated with this accelerated process.
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.
Researchers at Northern Arizona University are developing a breakthrough tool to detect early signs of Alzheimer's disease. The new technology uses microvesicles in the blood to identify biomarkers indicating improved neuroplasticity, which can help track the disease's progression.
Researchers at Salk Institute and UC San Diego have identified a unique sugar called HSAT as a potential therapeutic target for slowing tumor progression and metastasis in pancreatic ductal adenocarcinoma. Boosting HSAT levels may slow the formation and spread of pancreatic cancer, leading to improved survival rates among patients.
A Kobe University study found that metformin reduces copper and iron levels and increases zinc levels in patients with type 2 diabetes. This suggests a possible mechanism for the drug's beneficial effects beyond lowering blood sugar levels.
Researchers found that certain antiviral genes become less active with age in people with lupus, leading to fewer inflammatory proteins. This reversal of 'inflammaging' may explain why symptoms improve in some older patients, allowing them to approach healthy aging.
Researchers are developing a cutting-edge blood test that can accurately track clot formation and breakdown. This innovative approach has the potential to improve patient treatment and reduce complications associated with current treatments.
Researchers developed a new method that uses simple grayscale eye photos to predict anemia in children. The technique analyzes patterns and textures in the conjunctiva of the eye, avoiding problems caused by different light conditions or camera models.
A new method for detecting cancer from blood samples has been developed, enabling the detection of extremely low concentrations of circulating tumor DNA. The technique, which combines whole-genome sequencing with error-correcting methods, shows high sensitivity and accuracy in identifying cancer mutations.
A new analytical method has been developed to measure plasma P-tau217, a blood-based marker that can change several years before Alzheimer's symptoms appear. The fully automated method demonstrated high accuracy of over 90% in various settings, including primary care and specialized memory clinics.
Tulane University scientists developed a handheld device to deliver rapid and accurate tuberculosis diagnoses in under an hour. The device, called the lab-in-tube assay (LIT), can detect Mycobacterium tuberculosis DNA in saliva, blood, and sputum samples, offering a cost-effective tool for improving TB diagnoses in resource-limited areas.
A study found that consuming sucralose alters brain activity related to hunger and increases appetite, especially in people with obesity. The sugar substitute changes how the hypothalamus communicates with other brain regions, including those involved in motivation, potentially leading to cravings and eating behavior changes.
A new study from the University of Colorado Anschutz Medical Campus identified significant mitochondrial dysfunction in lymphoblast cell lines from children with Dravet syndrome, a severe form of epilepsy. The findings suggest that mitochondrial defects play a role in the metabolic dysfunction observed in Dravet syndrome.
UTEP researchers have developed a new diagnostic method that significantly enhances the sensitivity of parasite detection in blood samples, making it a more reliable indicator of parasites in the blood. The method uses magnetic beads to extract parasitic DNA from blood samples, outperforming traditional silica columns.
Researchers at the University of Texas at El Paso have developed a portable, blood-based device that can detect colon cancer using a biomarker called CCSP-2. The device has the potential to provide early detection and treatment options for this second-deadliest US cancer, making it a significant advancement in colorectal cancer screening.
The Rice team created a low-cost, pump-free flow cytometer that uses gravity-driven slug flow to analyze cells with similar accuracy as conventional devices. The device is powered by AI and can count specific immune cells from unpurified blood samples within minutes.
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 developed a simple test that detects antibodies against four dengue virus serotypes and zika virus. The test achieved high sensitivity (87.8%) and specificity (91.4%), indicating its potential to monitor specific antibodies produced in response to exposure to the viruses.
A new study reveals that PFAS are found in larger volumes than before, with a significant increase in the livers of wading birds. The researchers used a new method called the Total Oxidizable Precursor (TOP) assay to detect these substances.
Researchers identified 19 metabolites and found that levels of certain compounds correlated with increased blood pressure, worse obstetric outcomes, and poorer end-organ function. The study expands scientific knowledge of preeclampsia and its mechanisms, paving the way for future therapeutic strategies.
A new blood test has shown promise in improving the accuracy of Alzheimer's Disease diagnosis, with results comparable to established CSF biomarkers. The study found that measuring plasma p-tau217 was over 90% accurate, potentially replacing invasive diagnostic methods for up to half of patients.
A study found that DNA methylation clocks used in forensic science and epigenetics are less reliable when applied to non-blood tissues, such as lungs, colon, and kidneys. The researchers suggest that organ-specific epigenetic clocks may be needed to improve biological age prediction.
A new study at U-M Health shows that hospitals can focus the use of preoperative tests on high-risk patients, while safely reducing unnecessary testing in others. The result is less wasted money and resources, as well as less time wasted for patients and clinical staff.
Researchers at TUM found that cystic fibrosis causes changes in the immune system as early as birth, leading to frequent inflammation and infections. These changes are not affected by CFTR modulator therapies.
Researchers developed a precision medicine approach that uses high-tech microscopy to analyze individual immune cells and identify cellular phenotypes correlated with disease activity and therapeutic response. This study represents a major step forward in tailoring therapies for rheumatoid arthritis and other autoimmune diseases.
A new position paper from the International Osteoporosis Foundation and International Federation of Clinical Chemistry proposes a unified nomenclature for bone status indices to enhance diagnostic consistency and clarity. The guidelines offer a comprehensive framework to unify terminology and improve comparability across studies.
Researchers developed a miniaturized all-fiber photoacoustic spectrometer for intravascular gas detection, achieving detection limits of 9 ppb and response times as quick as 18 milliseconds. The system detects trace gases at the ppb level and analyzes nanoliter-sized samples with millisecond response times.
A UK study published in Diabetic Medicine found that over half of pregnant women with gestational diabetes were undiagnosed due to slow NHS blood test processing. Faster blood processing identified additional cases, leading to improved health outcomes for mothers and babies.
A new blood test reveals heart transplant patients at risk of rejection by analyzing DNA fragments in their blood. This non-invasive test is comparable to existing US tests and could save millions in public healthcare costs.
A new finger prick test for Alzheimer's disease has shown strong performance in a European study, measuring biomarkers in blood from superficial vessels. The test could soon be implemented globally, increasing accessibility to Alzheimer's testing without the need for high-sensitivity analyses.
Scientists use machine learning-based classifiers to differentiate lung cancer and noncancer based on urinary miRNA ensembles. The study reveals high specificity and sensitivity in detecting early-stage lung cancer, offering new hope for improved patient outcomes.
A multicenter national clinical trial is being conducted to study whether giving antibiotics at the start of labor induction can decrease C-sections in pregnant women with obesity. The trial aims to enroll nearly 800 women and analyze infection rates, complications, and microbiome changes.
Researchers will use decades-old data from blood and urine tests to measure pesticide and metal levels among participants, then match with MRI scans and cognitive tests to identify potential contributions to dementia risk. The study aims to understand environmental links to Alzheimer's disease and related dementias.
Researchers tracked the long-term dynamics of transplanted stem cells in patients' bodies up to three decades post-transplant. They found that younger donors produce more vital stem cells, while older donors experience reduced immunity and higher relapse risk. The study provides new insights into donor selection and transplant success.
Researchers have developed a handheld, sound-based diagnostic system that can deliver precise blood test results in an hour with minimal finger prick of blood. The system uses functional negative acoustic contrast particles and a custom-built instrument to detect biomarkers in tiny amounts of blood.
A non-invasive blood test measuring circulating tumor cells can predict treatment response, disease progression, and overall survival in men with metastatic prostate cancer. Patients with more CTCs had shorter median survival lengths and a greater risk of death.
Researchers have developed a new method to detect melanoma using tumour-specific antibodies, which can accurately identify stage I and II melanoma patients. The study found that these antibodies showed high sensitivity and specificity in detecting melanoma, with an AUC value of up to 0.981.
A Kobe University study found that the widely used casual blood glucose testing method for screening pregnant women with gestational diabetes mellitus misses 70% of cases. The researchers recommend using more reliable tests to prevent pregnancy complications and type II diabetes in mothers and children.
Researchers have developed an integrated optical sensor capable of detecting dopamine directly from unprocessed blood samples. This breakthrough enables low-cost and efficient screening tools for various neurological conditions and cancers.
Researchers have identified a unique biomarker in human blood serum that shows potential for early diagnosis of Alzheimer's disease. The study's findings suggest that this test could be used to diagnose AD before cognitive decline or symptoms become apparent, enabling earlier lifestyle changes and medication to slow disease progression.
Aston University researcher has developed a new method of analysing crystals in dehydrated blood samples using polarisation-based image reconstruction technique. The technique showed a 90% accuracy rate for early diagnosis and classification of cancer, making it less traumatic and risky for patients.
A new blood-based assay has been developed to detect IDH1.R132H-mutant gliomas with a high sensitivity of 75.0% and specificity of 88.7%. This minimally invasive test can monitor disease progression and response to treatment without the need for a biopsy.
Researchers studied the association of 12 immune cell types with epigenetic age acceleration in healthy and diseased populations. Their work sheds light on the complex interplay between immune cell composition and epigenetic aging.
Researchers developed a faster and more precise method to separate particles in fluids, enabling quicker sorting of cells in blood samples and removal of pollutants in water. The improved technique uses specially engineered channels and high polymer concentrations to guide particles and increase accuracy.
Researchers found a blood test to detect alpha-synuclein protein shows promise for diagnosing Parkinson's disease. The study, published in the Journal of Parkinson's Disease, confirmed that the biomarker is highly sensitive and changes over the course of the disease.
A new study reveals that about two percent of the population develop autoantibodies against type 1 interferons, making them more susceptible to severe viral infections. The autoantibodies remain detectable in the blood for life and are associated with a compromised type 1 interferon system.
Dr. Rissman's research uses plasma Aβ42/Aβ40 ratio to predict brain amyloid PET positivity and identify individuals at risk for Alzheimer's disease. His findings demonstrate the potential of a blood test to screen for amyloid in preclinical AD trials.
A new liquid biopsy method analyzes gene fragments in the bloodstream to detect and track cancer, enabling oncologists to tailor treatment approaches to individual patients. This non-invasive test can help monitor treatment success, detect cancer recurrence, and improve patient quality of life.
Researchers analyzed blood plasma samples from 110 patients infected with Plasmodium vivax to understand how metabolisms were affected during initial episodes versus recurrent cases. The study found that patients with recurrence exhibited modulation in lipid pathways involved in immune system production, while those with first-episode ...
Xiaohu Xia's research focuses on enhancing diagnostic efficacy of enzyme-linked immunosorbent assay (ELISA) testing using specially tailored nickel-platinum nanoparticles. His goal is to improve disease detection accuracy by more than 300 times, enabling early diagnosis of cancers like prostate and colorectal cancer.
A study in São Paulo state found that chikungunya virus circulated silently for years before causing major epidemics. The researchers monitored residents for four years and discovered a significant rise in seroprevalence from 0.35% to 2.3%. This finding underscores the need for strengthened disease surveillance.