Articles tagged with Blood Samples
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Forensic examiners can use blood or teeth samples to estimate an individual's age with great accuracy, helping track down criminals or identify human remains. Researchers at KU Leuven developed a test based on four age-associated DNA methylation markers, achieving margins of error of 3.75 years for blood and 4.86 years for teeth.
Researchers have developed a new blood test that can detect precancerous polyps in the colon, potentially improving colonoscopy screening results. The test uses surface-enhanced Raman spectroscopy to identify molecular traces in blood plasma, offering a cheaper and less invasive initial screening option.
A proof-of-concept study at Johns Hopkins Medicine shows that drone transport of blood samples has no effect on common lab tests. The successful transportation of sensitive biological samples via hobby-sized drones holds promise for improving healthcare access in remote areas.
Researchers are working on a project to stabilize high-quality blood plasma proteins using special filter papers. The goal is to make it possible for patients to provide their own blood samples from home, reducing protein degradation and improving existing protocols with a simple and cost-effective method.
Researchers at The Wistar Institute have identified a protein biomarker AKAP4 that appears to be more accurate in detecting non-small cell lung cancer. This discovery could lead to the development of a simple blood test for annual screening, potentially saving lives by detecting the disease earlier.
Researchers at McMaster University have developed a technology to convert adult human blood cells into functional neurons, providing insights into pain perception and potential new treatments. This breakthrough could lead to the development of personalized pain medications that target specific neural pathways.
A new blood test has been developed to detect breast cancer metastasis significantly earlier than current methods, according to researchers at Lund University. The test uses circulating tumor DNA in the blood to identify genetic mutations specific to each tumor.
Researchers developed a microfluidic device called the Cluster-Chip to capture clusters of two or more cells, which are significantly more likely to cause metastases. The device proved 40-50% better at finding clusters with targeted markers and 1000% better at capturing cells without them.
Biologists at the University of Luxembourg analysed 1100 microRNAs in 100 blood samples to create a reference for the majority of microRNAs in healthy people. They found that some previously praised molecules are naturally variable and not reliable biomarkers, while others show promising deviations indicative of skin cancer.
A new blood test has been developed to predict future breast cancer by analyzing metabolic profiles of over 57,000 people. The test shows a sensitivity of 80% in predicting the likelihood of developing breast cancer within two to five years.
A portable tool predicts avian flu outbreaks by analyzing chickens and detecting viral strains. The device uses gold nanoparticles and quantum dots for rapid detection in just two to three minutes.
Researchers developed a microfluidic chip that uses sound waves to separate circulating tumor cells from white blood cells, achieving a throughput rate up to 20 times faster than prior attempts. The device preserves the integrity of separated CTCs and offers a label-free approach without chemically altering the cells.
Researchers at UCLA find that HIV infection accelerates age-related epigenetic changes, leading to accelerated onset of diseases like cancer and osteoporosis. The study suggests that HIV itself may accelerate these aging-related changes by more than 14 years.
A new mass spectrometry method developed by IUPUI chemist Nicholas Manicke can rapidly detect drugs and poisons in blood samples. The method, known as paper spray mass spectrometry, has potential use in various fields such as biomedical research, clinical testing, and forensic science.
A Michigan State University study found that most people are willing to donate bodily samples for medical research, but this willingness drops when specific projects are mentioned. The study suggests that biobanks should rethink their consent processes and be more transparent about the research they support.
A study published in Clinical Infectious Diseases demonstrated the pivotal data for T2Candida and T2Dx, detecting Candida species with 91.1% sensitivity and 99.4% specificity in 3-5 hours without blood culture. This technology has the potential to reduce costs, length of stay, and mortality rates associated with Candida infections.
Researchers from UCLA have created a device that can accurately detect cancer and cell abnormalities like pathology lab microscopes. The lens-free microscope uses holograms to create 3D images, making it easier to spot any issues.
A study from Johns Hopkins Medicine found that people with less mitochondrial DNA in their blood are more likely to be frail and die earlier. The researchers hope to develop a test that can predict frailty and identify individuals who can benefit from lifestyle changes or medication.
A University of Michigan molecular biologist re-examines data from a controversial study claiming that complete food genes can pass into human blood. The researcher found evidence of contamination in laboratory samples, suggesting that DNA from food and skin microorganisms are present in the same sample tubes.
A recent USGS and Baylor University study examines the bioaccumulation of pharmaceuticals in the water-fish-osprey food web. The research findings indicate that ospreys do not carry significant amounts of human pharmaceutical chemicals, despite widespread occurrence of these chemicals in water.
A new technique called slug flow microextraction allows for the quick detection of drugs and monitoring of medical conditions using only a small sample of biological fluid. The method involves extracting target molecules from the sample and analyzing them with mass spectrometry, resulting in results in just minutes.
Research on 1221 Danish men found a link between moderate weekly alcohol intake and poorer sperm quality, with effects more noticeable at higher consumption levels. The study showed that even habitual drinking was associated with changes in reproductive hormone levels, leading to lower sperm counts and abnormal sperm shape.
A study published in Science Translational Medicine found that immune cell activity within the first 24 hours after surgery can predict a patient's recovery time. The researchers used single-cell mass cytometry to analyze blood samples from patients undergoing hip-replacement procedures, revealing a unique pattern of immune response.
Researchers at PNNL developed an inexpensive, high-powered microscope that can be used to identify biological samples in the field. The device uses glass spheres as a lens and can achieve 1000x magnification, suitable for detecting tiny pathogens.
A new study suggests that eating before TB treatment can reduce drug effectiveness due to lower blood concentration levels. The study found significant implications for clinical practice, highlighting the need for correct medication administration.
Researchers have developed a new nasal test that can quickly and accurately diagnose Creutzfeldt-Jakob disease, an incurable neurodegenerative disorder. The test was successfully tested in 97% of patients with the disease and showed 100% specificity for non-patients.
A study by Nationwide Children's Hospital researchers found that an immune marker can predict which critically ill children with traumatic injuries are at risk of developing a hospital-acquired infection. The study suggests that immune system function plays a critical role in preventing infections in these patients.
Researchers developed a new big data analysis technique to predict kidney transplant patient outcomes, providing doctors with valuable time to intervene. The technique uses complex algorithms to analyze hundreds of thousands of variables from blood samples, allowing for more accurate prognosis and improved patient recovery periods.
A new noninvasive blood test detects increasing amounts of donor DNA in the recipient's blood, identifying heart-transplant rejection weeks or months earlier than biopsy. The test outperforms existing methods, including AlloMap, with higher accuracy and potential to revolutionize patient care.
A new assay can detect toxic prions in blood samples from humans with variant Creutzfeldt-Jakob Disease (vCJD) and asymptomatic animals. The test, developed by French researchers, was tested on vCJD patients and non-infected controls, accurately identifying infected individuals.
A study published in Blood demonstrated that the C1s antibody prevents the destruction of human red blood cells exposed to patient autoantibodies in cold agglutinin disease. The antibody inhibits Complement deposition on the red blood cell membrane, preventing macrophage engagement and lysis.
A study published in the Journal of Heredity has found recent wolf-dog hybridization in the Caucasus region. The research team analyzed DNA samples from wolf and dog fur, scat, and blood, and discovered that about ten percent of dogs and wolves sampled had hybrid ancestry.
Researchers developed a novel molecular blood group typing technique that offers blood banks the possibility of extensive screening of blood donors at a relatively low cost. This technology can reduce adverse reactions and decrease blood bank costs by facilitating support for patients undergoing long-term transfusions.
A new technique uses DNA methylation signatures to detect immune cell types in blood samples, showing high accuracy compared to existing methods. The approach counts specific chemical alterations that distinguish between cell types, enabling researchers to understand the unique signature of each cell type.
A blood test has been developed to accurately screen for infection with the agent responsible for variant Creutzfeldt-Jakob disease. The test found 71.4% of patients with vCJD correctly tested positive, making it suitable for screening large populations.
A study found that MERS-CoV is prevalent in camels throughout Saudi Arabia, with antibodies detected in 74% of camels and active virus in 35% of young camels. The virus likely spreads through respiratory secretions.
Researchers have identified four biomarkers in blood samples that can predict mortality from any disease within five years. The study used NMR spectroscopy to analyze over 17,000 healthy individuals and found that these biomarkers were independent of traditional risk factors, indicating a general frailty in the body.
Researchers have developed a new optical device that can measure blood coagulation parameters in near real time, enabling timely diagnosis and treatment of bleeding patients. The device uses laser speckle rheology to detect changes in blood sample patterns, providing insights into clotting time and fibrinogen concentration.
Research found that women deficient in vitamin D during the first 26 weeks of pregnancy may be at risk of developing severe preeclampsia. Vitamin D sufficiency was associated with a 40% reduction in risk of severe preeclampsia, but not mild preeclampsia.
Researchers discovered a novel clot structure involving polyhedrocytes in contracted clots, making them less responsive to medications. T2HemoStat enabled the detection of this unique structure, which could lead to better diagnostic tools and therapeutic choices.
Researchers developed a magnetic nanoparticles-based method to extract DNA from saliva and blood samples of stroke patients. This non-invasive method was used to screen for the C677T polymorphism in the MTHFR gene, which is a risk factor for stroke.
Scientists at UCLA and Emory University have identified a biochemical signal in the blood associated with the faster-progressing form of Parkinson's. The researchers discovered that N8-acetyl spermidine is significantly elevated in rapid progressors, suggesting its potential as an early biomarker for the disease.
A new method combines selective lysis, centrifugation, and fluorescence spectroscopy to diagnose blood infections in 96.5% of positive samples. The technique eliminates the need for expensive equipment and manual processing, enabling faster treatment with targeted antibiotics.
Researchers discovered that sleep loss affects specific genes involved in the regulation of the immune system, triggering an inflammatory response. This link was confirmed in a population study, suggesting that chronic sleep deprivation may contribute to the development of inflammatory diseases.
A new urine test has been developed to diagnose retinitis pigmentosa, a degenerative eye disease. The test uses mass spectrometry to analyze dolichol profiles in urine and blood samples, distinguishing between different gene mutations that cause the disease. This non-invasive test could provide personalized care for patients with RP.
Researchers have identified distinctive epigenetic modifications associated with Parkinson's disease that can be easily analyzed in blood samples. These changes replicate the epigenetic status of brain tissue cells, potentially simplifying early diagnosis of the disease.
Research in Costa Rica found that pesticide use in banana plantations is contaminating protected conservation areas, affecting spectacled caiman species. The study highlights the need for improved regulatory infrastructure to mitigate pesticide damage to aquatic ecosystems.
A new strategy developed at UC Davis Health System tests for telltale antibodies in the blood to detect tuberculosis, potentially improving treatment outcomes. The test can detect about 80% of active TB cases, making it a significant advancement in disease detection.
Higher levels of omega-3 fatty acids from fish and flax are linked to lower risk of hip fractures in postmenopausal women, according to a recent study. The study found that higher omega-6 to omega-3 ratio increased the risk for hip fracture.
Harvard physicists develop a novel technique to detect molecular variants in chemical mixtures, relying on microwave fields to identify left- and right-handed compounds. The method can analyze complex mixtures and determine the ratio of variants, with potential applications in pharmaceutical development.
The new tool uses neutralization fingerprinting to identify specific types of HIV antibodies present in a blood sample. This approach is particularly useful when other methods are not feasible and can significantly reduce the time required for analysis.
Researchers from Sweden have successfully identified 12 substances in the breath of patients using a commercially available breath sampler. The study found high detectability for most drugs even 24 hours after intake, suggesting roadside breath testing as a promising alternative to blood and urine tests.
Researchers demonstrate rapid and sensitive identification of specific Candida species directly from whole blood using T2Candida, reducing mortality rate to 11%. The breakthrough approach enables fast detection in approximately three hours, outperforming current gold standard methods.
Research suggests hormonal changes may precede development of rheumatoid arthritis in men. Men with low testosterone levels were found to be more likely to develop the disease, even after adjusting for other risk factors.
A new portable device can count all five subtypes of white blood cells within minutes, providing an accurate differential and enabling the detection of rare basophils. This technology could improve outpatient monitoring of patients with chronic conditions and bring medical care to remote areas.
Researchers found that red blood cells in blood stored longer than three weeks gradually lose their flexibility to deliver oxygen-rich cells. The study's findings suggest that the current practice of transfusing blood stored up to six weeks may need reconsideration.
Women deficient in vitamin D early in pregnancy are more likely to deliver babies with lower birth weights. Maternal vitamin D deficiency may impact fetal growth by reducing calcium absorption and glucose production, leading to a higher risk of small for gestational age births.
Berkeley Lab scientists develop a blood test that can detect radiation exposure, measure dose, and separate individuals with inflammation injuries in hours. The test uses biochemical markers from eight DNA-repair genes.
A pilot study of six patients with chronic fatigue syndrome detected specific antibodies linked to latent Epstein-Barr virus reactivation, which responded to antiviral treatment. The researchers plan to develop a clinical laboratory test to detect these antibodies in blood samples, offering a potential breakthrough in diagnosis.
Researchers found that metal-binding agents applied to the skin, prescribed for autism treatment, are not absorbed and ineffective. The study contradicts claims made by some practitioners treating children with mercury-binding agents.