Articles tagged with Biomarkers
Researchers identified two biomarkers in the blood that may accurately predict the spread of colon cancer, allowing for earlier intervention and treatment. The study found these biomarkers were significantly higher in metastatic cells than primary tumor cells.
A new study has found that current biomarkers des-gamma-carboxy prothrombin (DCP) and alpha fetoprotein (AFP) are not optimal for early detection of liver cancer. The study suggests that combining both markers can increase sensitivity but decrease specificity, indicating a need for further investigation.
Researchers have identified a biological marker in the brains of those exhibiting post-traumatic stress disorder (PTSD) using magnetoencephalography (MEG), a non-invasive measurement of magnetic fields in the brain. With over 90% accuracy, they were able to differentiate PTSD patients from healthy control subjects.
Researchers found that biomarker-stratified designs provide complete information on the relationship between treatment effects and biomarkers. This design enables unbiased estimates of benefit-to-risk ratios across different subgroups.
Researchers identified a biomarker called elafin that can be measured in a blood test to diagnose bone marrow transplant patients' skin rashes and predict GVHD risk. The test enables doctors to adjust therapy based on patient risk levels, potentially reducing side effects.
Researchers found that biomarker levels began to rise 3 years before clinical diagnosis, but became substantially elevated only a year prior. While not accurate enough for early intervention, these markers are associated with modest increases in ovarian cancer risk.
Scientists at Yale University have successfully used nanosensors to detect cancer biomarkers in whole blood for the first time. The new device can accurately measure concentrations of specific biomarkers with unprecedented precision, enabling faster and more reliable diagnoses.
Researchers have identified cardiac myosin-binding protein C as a potential new diagnostic biomarker for heart attacks, particularly useful for mild attacks. cMyBP-C becomes nearly 20 fold more abundant than before within 5 minutes following a heart attack, suggesting its value in early diagnosis.
Research highlights new techniques to assess PTSD, identify biomarkers for schizophrenia, and develop treatment for gambling addiction. These breakthroughs may lead to earlier diagnosis and personalized treatment strategies.
After a heart attack, patients experience shortness of breath and chest pain due to elevated cardiac biomarkers TnT and NTBNP. These biomarkers signal ongoing problems or past issues, highlighting the need for targeted treatment.
Dr. Jennifer Brodbelt receives $734,068 NIH grant to develop chip-based method for rapidly analyzing blood samples. The new approach could identify patterns correlated with aging and obesity.
A workshop conducted by the National Cancer Institute and FDA identified critical decision points in cancer biomarker and drug development. The points emphasize the importance of understanding the biology of the target and its interaction with drugs, as well as rigorous sample collection and quality control.
Researchers aim to identify 'biomarkers' in tissue and blood samples to diagnose conditions like psoriasis, rheumatoid arthritis, and Crohn's disease. They will test these signatures using tissue and blood samples from patients with various inflammatory diseases.
Archived patient tissue specimens can be used to indirectly test biomarkers, providing a more efficient alternative to traditional prospective studies. The authors argue that this approach can help establish the medical utility of prognostic and predictive biomarkers.
Researchers at the University of Toronto have created a microchip that can detect the type and severity of cancer in just 30 minutes, revolutionizing molecular diagnostics. The device uses nanomaterials to sense biomarkers indicative of cancer, providing speed, sensitivity, and accuracy not available with current technology.
Treatments like insulin and metformin do not reduce inflammatory biomarkers, such as hsCRP, despite improving glucose control. No consistent association was found between glucose reduction and improvement in inflammatory status.
A new biomarker test has been developed to predict the effectiveness of antidepressant medication in patients with major depression, allowing for quick switching to more effective treatments. The test measures changes in brain-wave patterns and showed an accuracy rate of 74%.
Biomarker levels strongly predict bypass surgery outcome and identify patients at risk of complications. Current diagnostic standards may need reconsideration due to low sensitivity.
Studies show that prototype helmets can improve blunt-impact protection for ground troops without compromising ballistic protection. A survey also reveals high incidence of driving-related anxieties among post-deployment soldiers, highlighting the need for better tools for diagnosis and treatment of traumatic brain injury in the civili...
Two novel biomarkers, sensitive cardiac troponin assays and copeptin, significantly improve early detection of acute myocardial infarction. These markers enable doctors to diagnose AMI in the vast majority of patients presenting with chest pain, reducing complications and costs.
A French team identified a 'Goldilocks dose' of DHA (200mg/day) that affects biochemical markers predicting cardiovascular problems. Regular DHA consumption is likely to improve cardiovascular health, especially in aging-related issues.
Two new software programs, caCORRECT and omniBioMarker, have improved the identification of cancer biomarkers from gene expression data. The certified tools remove noise and artifacts, and identify valid biomarkers for personalized cancer treatment.
A study found that testing for blood alcohol levels (BALs) can identify high-risk patients admitted to trauma centers who had denied excessive drinking. Elevated BALs are associated with higher rates of complications and predict the development of delirium treatments.
A multicenter study found that cerebrospinal fluid biomarkers Aβ42, T-tau, and P-tau can accurately identify patients with mild cognitive impairment who will progress to Alzheimer's disease. The study used a large group of patients with MCI and followed them for at least 2 years or until symptoms progressed.
Several statistical and biological issues need to be addressed to improve biomarker identification for early cancer detection. The author suggests using more frequent specimen collection and the paired availability design to enhance the biomarker pipeline.
Several biomarkers, including CRP and N-BNP, showed minimal added benefit in predicting cardiovascular events compared to conventional risk factors. The use of these biomarkers did not result in significant improvements in reclassification of individuals to new risk categories or changes in therapy.
A recent genetic association study failed to support a causal relationship between C-reactive protein levels and coronary heart disease (CHD). The study, published in JAMA, found that variants associated with lower CRP levels were not linked to reduced CHD risk.
A study of biomarkers found that measuring known biomarkers slightly improves the ability to predict future heart attacks or strokes in healthy individuals. However, this improvement is not significant enough to change preventive therapies. The study suggests that new technologies may lead to personalized cardiovascular risk prediction.
A new method detects protein biomarkers in body fluids, increasing the number of diagnostic tests for cancer. The technique is highly reproducible across laboratories and instruments, allowing for early cancer detection.
Researchers at Boston Children's Hospital developed a protein detectable in urine as a potential biomarker for appendicitis. The leucine-rich alpha-2-glycoprotein (LRG) marker showed near-perfect sensitivity and specificity, and was strongly elevated in diseased appendices.
Researchers identified a new biomarker that can predict which patients with recurrent glioblastoma will respond better to anti-vascular endothelial growth factor therapy. The study found that vascular normalization, measured using advanced MRI and blood biomarkers, correlated with survival rates.
A recent study has identified biomarkers in cerebrospinal fluid that can reveal Alzheimer's disease at a very early stage, even in patients with minimal memory impairment. The findings suggest that these biomarkers can predict the risk of deterioration by 27 times higher than the control group.
Researchers have identified N-Myc downstream-regulated gene 4 (NDRG4) as a potential biomarker for colorectal cancer and a candidate tumor suppressor gene. The study found that NDRG4 promoter methylation was more prevalent in colorectal cancers than in noncancerous colon mucosa.
A new blood test has been developed to detect the p16INK4a biomarker, which is strongly correlated with chronological age and behaviors that accelerate aging. The test has been validated in a study of 170 healthy human volunteers, showing a strong correlation between biomarker expression and age.
A new study identified biomarkers associated with inflammation and joint erosion in early rheumatoid arthritis. Levels of sYKL-40 and sMMP3 were consistently linked to disease activity measures, suggesting their potential use as predictors of bone and cartilage damage.
A global study found colorectal cancer incidence rates for males and females increased in 27 countries between 1983 and 2002. The rise is attributed to Westernization and lifestyle changes, including obesity, physical inactivity, and diet.
Scientists at the University of Saskatchewan and Canadian Light Source have identified a chemical fingerprint associated with Barrett's Esophagus, a precursor to esophageal cancer. The discovery uses infrared microscopy to detect biomarkers in individual cells, offering a new diagnostic tool for detecting the condition.
Several novel biomarkers have been discovered in heart failure syndrome, including ST2, troponins, AGEs, adrenomedullin, and estradiol. These biomarkers offer valuable information for diagnosis, risk stratification, and treatment monitoring, as well as providing insights into the disease's underlying pathophysiology.
John P. Cogswell, PhD, has been awarded the 2009 Alzheimer Award for his work on identifying microRNA changes in Alzheimer's disease brain and CSF, which yields putative biomarkers and insights into disease pathways. His research highlights the potential of microRNAs to aid clinical diagnosis.
A new study using cardiac magnetic resonance imaging found that marathon runners experience transient heart dysfunction after competition. The study showed that these fluctuations do not result in true damage to the heart muscle and recover within one week.
Researchers are launching a multi-institutional effort to develop a test to detect early-stage lung cancer in lifetime nonsmokers. The project aims to create a better understanding of the biology of lung cancer and identify potential biomarkers.
Researchers at Ohio State University validated a method to measure variations in histones, promising biomarkers for chronic leukemia diagnosis and treatment response. The study accurately detected differences in histone composition between CLL cells and healthy B lymphocytes.
A team of researchers has established a compendium of 2,516 potential biomarkers for pancreatic cancer, with over 200 genes shortlisted for further study. The findings provide a strategic approach to early detection and could lead to the development of more accurate diagnostic tests.
Researchers have made significant breakthroughs in salivary diagnostics, discovering new biomarkers for detecting oral cancer, acute coronary syndrome, and systemic diseases. The study highlights the potential of saliva as a non-invasive diagnostic tool, offering clear clinical advantages over traditional methods.
Researchers have discovered two efficient biomarker applications that promise even earlier diagnosis and improved treatment of heart failure. Biomarkers N-terminal pro-B-type natriuretic peptide (NT-proBNP) and cystatin C can identify patients at high risk, enabling targeted care and reducing healthcare costs.
Researchers at Penn Medicine have developed a biomarker test that can confirm or rule out Alzheimer's disease by measuring cerebrospinal fluid concentrations of amyloid beta42 peptide and tau protein. The test accurately predicted the conversion from mild cognitive impairment to Alzheimer's disease in 81.8% of cases.
Researchers will analyze frozen blood samples from over 7,000 FHS participants to identify biomarkers associated with heart disease and metabolic syndrome. The goal is to develop simple blood tests to predict high-risk patients.
Researchers in Singapore have identified three specific biomarkers that accurately indicate the severity of Chikungunya fever, which can be easily detected in blood samples. These findings enable quicker and more accurate prognosis for infected patients, distinguishing CHIKF from dengue fever.
A study found significant correlations between PBC stage and AST, APRI, ALT/platelet, and AST/ALT ratios. These biomarkers show promise in reducing the need for liver biopsy, with AST/ALT exhibiting the highest sensitivity and specificity.
Dr. Wenbo Zhi, a postdoctoral fellow at the Medical College of Georgia, has received a two-year fellowship to study biomarkers associated with type 1 diabetes. He aims to identify protein biomarkers that can improve diagnosis and treatment using proteomic techniques.
Yale researchers identified proteins associated with early onset neonatal sepsis, a stealthy bacterial infection linked to premature birth and death. The biomarkers found have diagnostic value for infection and inflammation, allowing for earlier identification of babies at risk.
High levels of specific proteins in spinal fluid may signal the onset of Lou Gehrig's disease. Researchers developed a diagnostic kit using these biomarkers, achieving 92% accuracy in identifying ALS patients.
A recent study by Boston University researchers has identified a class of microRNAs that regulate gene expression changes in airway cells caused by smoking and lung cancer. These findings may lead to a non-invasive biomarker for smoking-related lung diseases, improving early diagnosis and treatment options.
A new technology has been developed to identify pregnant women at risk of developing preeclampsia, a leading cause of maternal and neonatal deaths worldwide. The technology employs a panel of biomarkers found in the placenta and could lead to earlier detection and targeted intervention.
Researchers found that testing two inflammation biomarkers, Lp-PLA2 and hs-CRP, improved the prediction of ischemic stroke in patients. Adding both biomarkers to traditional risk factors provided the most accurate picture of stroke risk.
Researchers discovered over 200 serum proteins in umbilical cord blood, revealing changes in protein levels that indicate cigarette smoke exposure. The study identified biomarkers linked to key metabolic pathways, providing insights into the molecular effects of fetal exposure to toxic chemicals.
A team of Stanford researchers has created a prototype blood scanner that can detect cancer biomarkers in the bloodstream at an early stage of the disease. The system uses magnetic nanotechnology to spot cancer proteins, which is tens to hundreds of times more sensitive than existing commercial devices. This technology holds promise fo...
Research suggests ovarian cancer subtypes have distinct biomarker profiles, affecting patient outcomes and treatment strategies. The study analyzed 500 ovarian cancer samples to identify correlations between biomarkers and survival rates, highlighting the need for subtype-specific approaches.
Scientists have discovered biomarkers predicting chronological and physiological age in nematode worms, with implications for human anti-aging therapies. The study's findings, published in Aging Cell, suggest that examining biomarkers over time can provide a scientific baseline for clinical trials.
A study found that interleukin-6, a biochemical marker in the blood, is significantly higher in patients with age-related macular degeneration (AMD) and correlates with oxidative stress. Additionally, collagen crosslinking treatment has shown promising results in stabilizing keratoconus patients' vision.