Articles tagged with Blood Samples
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Researchers found that Nazca booby chicks have high levels of testosterone and other male hormones, increasing aggression and leading to lethal fights with siblings. This early-life behavior prepares the birds for future bullying behaviors.
A study published in BioMed Central's Journal of Inflammation found that pomegranate extract reduced the production of chemicals causing inflammation in rabbits. The findings suggest that pomegranate extract may provide relief from chronic inflammatory conditions in humans.
Research published in Annals of the Rheumatic Diseases found that moderate alcohol consumption reduces the risk of developing rheumatoid arthritis by up to 50%. The study, which involved over 2,750 participants, also highlighted the importance of quitting smoking as a key preventive measure.
Researchers developed a method to identify bromadiolone poisoning in humans, which has a 20% mortality rate. The analysis method helps treat bleeding disorders by quickly identifying the cause of the condition.
Researchers analyzed data from a US national survey and found that lower sodium diets were associated with a significantly increased risk of cardiovascular disease. The study casts doubt on long-held assumptions about the risks of high-salt diets.
Researchers developed a lab-on-a-chip PCR test that combines sample preparation with PCR on a single chip, reducing analysis time from hours to minutes.
Researchers are developing a blood test to detect aggressive breast cancer using a comprehensive tissue collection and advanced proteomics technology. The project aims to identify proteins that indicate aggressive cancer and can be detected in blood, adding to the tools available to fight the disease.
A microchip-based device, called the CTC-chip, can isolate, enumerate, and analyze circulating tumor cells from blood samples. The device was tested on 68 patients with five different types of tumors and showed a sensitivity rating of 99%, accurately monitoring response to treatment.
Scientists have developed a retinal flow cytometer that allows for continuous monitoring of circulating cells in a mouse's bloodstream. This technology holds promise for treating multiple myeloma by enabling the testing of chemotherapy agents and treatment strategies.
A study from the University of Pittsburgh Schools of the Health Sciences found that maternal vitamin D deficiency early in pregnancy is associated with a five-fold increased risk of preeclampsia. Low vitamin D levels also affect newborns, increasing their risk of mortality.
Researchers isolated bisdemethoxycurcumin, which boosts macrophages to clear amyloid beta plaques found in Alzheimer's disease. The study identified key genes involved in this process, offering a new treatment approach that targets the innate immune system.
Researchers have successfully used specific antibodies to differentiate between fingerprints of smokers and nonsmokers, detecting cotinine metabolite in sweat. This technique could be used for forensic applications, doping detection, medical diagnostics, and drug screening without taking blood samples.
Researchers at the University of Rochester have created a laser-based technique that measures multiple chemicals in body fluids in under 60 seconds, offering non-destructive and fast testing capabilities. The technique uses Raman spectroscopy and low-refractive-index tubes to improve signal strength and accuracy.
A recent study published in the journal SLEEP found that healthy older men who get less nighttime sleep have lower morning testosterone levels. The study, conducted by Plamen Penev, MD, PhD, used polysomnography and wrist activity monitoring to measure sleep duration and its impact on testosterone levels.
Researchers created dual-modality microbeads to identify disease biomarkers, allowing for faster and more efficient detection of viruses and proteins in human blood and urine. The new technology can analyze very low concentrations of target molecules, enabling diagnosis of diseases like Alzheimer's with high sensitivity.
An international EU project led by the University of Bonn aims to shed light on why the immune system weakens with age, particularly in elderly people. The researchers will analyze up to 40,000 blood samples to develop new medicines that can largely inactivate viruses and enable the immune system to deal with residual viruses.
A new non-invasive prenatal testing method has been developed and tested on 60 pregnant women, identifying chromosomal abnormalities in 58 cases, including two trisomy 21 instances. While preliminary, the technique holds potential as a complement to existing prenatal tests with further refinement.
The UK Biobank project, a £61m initiative to study complex interactions of genetic and lifestyle factors in disease and health, has received unanimous backing from international experts. The pilot phase showed promising results, paving the way for nationwide rollout.
A study of over 2000 blood samples found that individuals with unfavourable blood fat levels were more likely to develop rheumatoid arthritis. Total cholesterol and triglyceride levels were higher in those who developed the disease, indicating an increased risk of ischaemic heart disease.
Researchers confirm that both humans and chimpanzees possess gene variants related to bitter taste, but the reasons behind these variations differ. The new findings challenge a 65-year-old genetic discovery made by Sir Ronald Aylmer Fisher, instead attributing the phenomenon to convergent evolution.
A team of researchers has created a miniaturized blood-counting machine that can analyze blood samples using minute amounts, reducing the need for bulky equipment and large blood draws. The device will enable astronauts to perform simple blood tests on the moon and Mars, as well as improve neonatal care with infants.
Researchers found a significant association between Epstein-Barr virus infection and multiple sclerosis (MS), with elevated antibody levels before symptom onset. The study suggests Epstein-Barr virus may predispose individuals to autoimmunity, paving the way for new treatments and prevention strategies.
A new EU project aims to explore the impact of prenatal exposure to food and chemicals on adult diseases. The NewGeneris study will analyze DNA and proteins in women and their newborn children from across Europe to identify potential biomarkers for increased risk of cancer or immune disorders.
The UK Biobank project is a revolutionary research undertaking that will gather and store vast amounts of medical data from 40,000 to 69-year-old volunteers. Researchers hope to identify more reliable reasons for why some people develop specific diseases and others do not.
Researchers analyze cost-effectiveness of different screening strategies to prevent cases through contaminated blood products. Screening only during mosquito season is deemed unnecessary in states with low WNV infection rates, while creating a 'supersafe' pool of blood for vulnerable individuals may be an effective solution.
The study found that epicatechin, a flavanol present in cocoa, is directly linked to improved circulation and other hallmarks of cardiovascular health. Volunteers from the Kuna Indians, who consume large amounts of flavanol-rich cocoa, had higher levels of urinary nitric oxide compared to their mainland counterparts.
Research in three countries found that uncontrolled use of artemisinin led to resistance in Plasmodium falciparum malaria. Mutations in the gene SERCA-type Pftpase6 were associated with this loss of sensitivity. The study highlights the need for increased vigilance and rapid deployment of drug combinations.
The new blood safety test is capable of detecting major parasitic diseases, including malaria and fasciola, with instant results. Developed by the Montreal Neurological Institute (NRCP) at McGill University, the test has the potential to save countless lives by reducing the risk of parasite transmission through blood transfusions.
Researchers at U-M have developed a new blood test for prostate cancer that uses 22 biomarkers to accurately identify cancerous samples. The test shows promise as a supplement or replacement for current PSA testing methods, which can produce false positives and unnecessary biopsies.
Researchers analyzed gene expression patterns in blood samples from patients with Huntington's disease (HD) and asymptomatic carriers to identify potential biomarkers. The study found 12 genes with significantly altered expression levels, which rose to disease-associated levels as carriers approached symptom onset.
Researchers at Georgia Tech have developed a device that can analyze proteins much faster, more gently, and at a lower cost. This innovation could significantly shorten drug development time and bring down the overall cost of protein analysis technology.
Researchers at the University of Toronto have developed a detection technique using DNA to pinpoint diseases and pathogens. The system, which involves a fluorescent dye attached to probe DNA, can detect target DNA sequences in a matter of seconds and is being seen as a potential game-changer for clinical care and environmental monitoring.
Researchers have identified differences in immune system cells and proteins in children with autism, raising hopes for an early diagnostic blood test. The study's findings could lead to a routine blood test that detects autism in newborns and allows for early treatment or prevention.
Researchers developed a new technique to detect fetal single gene disorders using analysis of circulatory fetal DNA in maternal plasma. The approach has been shown to be accurate and cost-effective, making it suitable for screening at-risk pregnancies in developing countries.
A new study found that HSV-1 DNA was present in the eyes and mouths of nearly all healthy participants, highlighting the widespread nature of the virus. The research suggests that controlling virus excretion could limit transmission and is a simple way to evaluate new antiviral drugs.
Chronic sinusitis sufferers exhibit abnormal immune responses to harmless fungal spores, releasing cytokines that can cause persistent inflammation. This study provides a possible immunologic basis for the condition and supports antifungal therapy as a potential treatment option.
A large population-based study found that current smokers have a 2.8-7.5 times increased risk of rheumatoid factor positive RA, while those with the SE gene have a 15.7 times higher risk. The study suggests a strong interaction between smoking and the shared epitope gene in increasing disease risk.
Researchers identify three biomarkers from serum proteomic analysis that correctly identified 74% of early-stage ovarian cancers, improving detection capabilities. The test combines these markers with CA125 for enhanced accuracy.
A study found increased levels of C-reactive protein (CRP) in the blood of patients with rheumatoid arthritis (RA), even those without autoantibodies. The findings suggest that early inflammation is a key factor in RA development, potentially serving as a predictive marker for future symptomatic inflammation.
A new study led by Duke University and NIST found a correlation between sea turtle health and high levels of toxic organic chemicals. The research team analyzed blood and fat samples from 48 juvenile turtles in North Carolina waters, discovering changes in immune function, liver damage, and protein regulation.
A new diagnostic test using proteomic signature analysis has been developed to accurately diagnose sleeping sickness. The test showed a sensitivity of 100% and specificity of 98.6%, offering a promising solution for early detection and treatment.
Australian researchers introduce a simple method to collect, archive and process DNA from wildlife samples using FTA databasing paper, which preserves DNA integrity despite temperature fluctuations. This technique enables the transport of large reference collections over long distances, enabling extensive wildlife studies.
Research finds HIV-positive men who have persistent GBV-C infection survive longer, but the exact reason is unknown. The study of 271 participants found that those with long-term GBV-C infection lived up to 11 years after contracting HIV.
Researchers developed a new method to increase fetal DNA detection in maternal blood, reducing the risk of pregnancy loss associated with invasive tests. The technique, using formaldehyde to stabilize blood cell membranes, resulted in higher percentages of free fetal DNA in samples.
Researchers developed an algorithm, Q5, using PCA and LDA to differentiate between healthy and diseased blood samples. The algorithm achieved virtually 100% accuracy for ovarian cancer and approximately 95% accuracy for prostate cancer.
A new study by Oklahoma researchers has identified autoantibodies years before the clinical features of lupus and found specific autoantibodies close to disease onset. The study, published in the New England Journal of Medicine, holds important clinical value and may lead to new therapies for the disease.
A new study finds that forgiveness is associated with lower resting diastolic blood pressure, especially among low-income black individuals. The research, conducted on a diverse sample of community residents, suggests that forgiving oneself and others may help mitigate cardiovascular risk factors.
An environmental epidemiologist from UGA aims to investigate how air pollution affects pregnant women and their unborn babies, building on his earlier research in Peru. He plans to measure personal pollution exposure of 100 pregnant women in Trujillo and analyze blood, urine, and cord blood samples.
A recent study found that women widowed less than a year experience more mental and physical problems compared to those who were married or widowed for longer. However, these women's mental health improved over time with social support.
Researchers create tiny chamber to achieve acceleration of over 1 million Gs, enabling rapid analysis of biological samples. Microfluidic systems could revolutionize quick diagnoses in remote locations.
Researchers used lead isotope ratios to identify the source of lead poisoning in albatross chicks on Midway. The study found that chicks are eating paint chips directly, leading to high levels of toxic metal in their blood, causing symptoms like droopwing.
Researchers found that healthy individuals vary in gene expression levels in circulating blood cells, with some genes used at varying levels depending on time of day and age. Despite these differences, the study revealed remarkable similarity in the genes used among the subjects.
Researchers used digital SNP analysis to detect ovarian cancer in 87% of early-stage and 95% of late-stage patients, with high total DNA amounts found in most cancer cases. The test holds promise for improved detection in a wide range of cancers.
The REGARDS study aims to identify known and unknown risk factors for stroke among African Americans, who face a higher mortality rate compared to whites. UVM's laboratory will analyze blood samples from 30,000 participants, providing a biological specimen bank for future research.
A German study found exposure to house dust endotoxin is associated with lower allergic sensitization in school children. Researchers also discovered that females are more sensitive to coughing agents than males. Occupational exposure to dust and fumes is linked to increased respiratory symptoms and asthma risk.
A new DNA typing method has been developed to help identify human remains that cannot be matched with the current protocol. The technique, called a 'miniplex,' uses a smaller set of reliable DNA markers to study tiny pieces of genetic material and could aid law enforcement in solving cases across the country.
Researchers from Penn State College of Medicine developed a new measurement technique to assess norepinephrine release in tissues adjacent to blood vessels. This improvement allows for more accurate data on the hormone's role in vasoconstriction and maintains adequate blood pressure when standing up.
Researchers found that expectant fathers' hormones fluctuate during pregnancy, mimicking their partners' changes. Testosterone levels dropped significantly after birth, and lower levels were associated with increased paternal behavior.
Researchers at Idaho National Laboratory and Miragen are developing a technique that uses antibodies to identify individuals, offering a potential alternative to DNA testing. The Antibody Profile Assay can distinguish between identical twins and provide results in just two hours.
Cornell University scientists have developed a new technique for accurately characterizing biomolecules using electrospray mass spectrometry. This breakthrough allows researchers to analyze samples as small as a single cell with unusually high confidence, opening up new avenues for molecular investigations into human medical disorders.