Articles tagged with Genetic Testing
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A new study found that white children were nearly twice as likely to have completed genetic testing, despite similar rates of test requests. The study also showed that insurance coverage for genetic testing was denied at higher rates for Black children, with disparities that could not be fully explained by socioeconomic factors.
A groundbreaking study analyzed data from over 78,000 cancer patients to identify nearly 800 genetic changes impacting survival outcomes. The research also discovered genes significantly associated with survival in various cancers, such as breast, ovarian, skin, and gastrointestinal cancers.
A new study identified a group of bitter compounds in roasted Arabica coffee that influence its taste. Genetic predisposition also plays a role, with individual variations affecting how people perceive bitterness, particularly through specific taste receptors.
A blood test using Signatera detected tiny fragments of tumor DNA in the blood, which showed that adding celecoxib to treatment may improve disease-free survival for patients with stage III colon cancer. The analysis found significantly improved outcomes for those taking celecoxib compared to placebo.
A new study reveals that long-read sequencing can diagnose rare genetic diseases more accurately, quickly, and affordably. By analyzing longer stretches of DNA, this technology eliminates gaps and provides direct phasing data, improving the diagnostic yield of genetic sequencing.
A systematic review found that genomic classifier tests can influence risk classifications and treatment decisions for patients with localized prostate cancer, but more research is needed to understand their cost-effectiveness and impact on racial groups. The tests may lead to more conservative management options, such as active survei...
A deficiency of TLE6 protein, associated with female infertility, was also linked to abnormal sperm morphology and reduced motility in male mice. The study suggests that TLE6 plays a crucial role in energy production in sperm cells.
A recent study found that a genetic test for opioid use disorder (OUD) had high rates of both false positive and false negative results, questioning its usefulness. The testing could lead to patients receiving opioids despite low risk or being denied effective pain relief due to high risk.
The alliance aims to generate evidence supporting national guideline inclusion and healthcare provider adoption of Myriad's Precise MRD test. The studies will explore the test's utility in breast, gastrointestinal, genitourinary and gynecological cancers.
Researchers have created a new circuit model that accounts for small changes to the sensor's behavior, allowing it to detect protein or DNA molecules from a sample. The device could lead to earlier diagnosis of diseases and more precise therapies tailored to each patient.
Genetic testing for cancer risk should always include healthcare providers and genetic counseling to ensure users fully understand their results and receive proper guidance. The authors call on the FDA to provide clear rules for using these tests, particularly for minors.
A new UCLA Health study found that adding genetic testing to the evaluation of pediatric patients with neurodevelopmental disorders led to more individualized care, including changes in medication, referrals to clinical trials or specialists, and surveillance for potential medical issues.
A six-year study examining 38 clinical isolates of Cryptococcus found genes and gene alleles associated with disease severity. The research aims to develop new treatments targeting these genetic variations, predicting disease outcomes and improving patient care.
Researchers aim to develop resilient soybean plants resistant to southern root-knot nematodes, causing $160 billion in damages annually. The project will screen hundreds of genetically diverse soybean lines worldwide to identify potential new sources of resistance.
A new DNA sequencing test called AR-ctDETECT has been found to distinguish between patients with poor and favorable prognoses in advanced prostate cancer. The test identified circulating tumor DNA in 59% of patients and showed that detectable ctDNA was associated with worse overall survival.
A novel study found that the TPMT∗8 allele is associated with reduced metabolism of thiopurine drugs, which can lead to toxicity. The research emphasizes the importance of understanding the function of TPMT∗8 to ensure effective pharmacogenomic testing across all ancestries.
A new study has found that hundreds of genes, rather than a single 'aberrant' genetic variant, contribute to the development of dilated cardiomyopathy. Researchers developed a polygenic risk score to assess individual risk and found those with the highest genetic risk had a fourfold chance of developing the disease.
Testicular cancer is a highly treatable condition with high survival rates when detected early, but patients with the highest-risk disease face a lower prognosis. New genetic changes have been identified using whole genome sequencing, offering potential new treatment strategies.
A new blood test can detect early signs of lung damage caused by antibody–drug conjugates (ADCs) in cancer patients, providing a safer alternative to frequent scans. This breakthrough method analyzes specific markers in circulating DNA, enabling doctors to monitor patients for lung complications without relying solely on imaging scans.
A team of researchers has identified 30 patients with previously undiagnosed conditions, linking them to rare mutations in the FLVCR1 gene. The study reveals a range of severe developmental disorders, including anemia and bone malformations, which share similarities with mice lacking the Flvcr1 gene and Diamond-Blackfan anemia.
A new NIH-funded study at Ann & Robert H Lurie Children's Hospital of Chicago will use AI to identify disease subtypes based on genetic data and associated outcomes in premature infants. The four-year study aims to establish disease subtypes that can predict longer-term cardiorespiratory outcomes, enabling earlier interventions.
A new genomic test using optical genome mapping (OGM) technology will enable faster and more comprehensive diagnosis of brain tumors in children. This innovative approach will help identify novel structural variants that could lead to improved outcomes and new targets for treatment.
A national study found that genomic sequencing can diagnose mitochondrial disease in over half of patients, simplifying the diagnostic journey and sparing invasive testing. The study also identified factors that impact testing results, particularly among children.
A large-scale study of children with genetic disorders found that thousands benefited from targeted treatments and support after receiving a genetic diagnosis, with over 20% able to start or adjust therapies. Researchers expect this number to grow as new genetic therapies develop.
A new study found that motor delay and low muscle tone were common signs of an underlying genetic diagnosis in children with neurodevelopment disorders. The research suggests that these early neurodevelopmental symptoms can benefit both patients' families and doctors by identifying the need for genetic testing.
The study analyzed the genetic profiles of 80,000 people and found that repeat expansion disorders (REDs) are common across different populations. The findings suggest a significant shift in how we think about genetic testing, profiling, and counseling for these conditions.
A new individualized risk prediction tool has been developed to predict the severity of heart disease in people suffering from Long QT syndrome. The test analyzes genetic mutations associated with the condition and can identify those at high risk of sudden cardiac death, allowing for tailored treatment.
Researchers have identified eight novel genetic mutations in patients with CSF1R-Related Disorder worldwide, highlighting the prevalence of the disease and paving the way for future individualized treatment. The discovery also suggests that genetic and environmental factors may influence the disease.
Researchers confirm that fibrosis in HER2-negative breast tumors is associated with an adverse prognosis and better treatment outcomes with nintedanib. A new test, MeCo Score, analyzes gene activity related to fibrosis and indicates the effectiveness of supplementing chemotherapy with antifibrotic therapy.
Researchers at HudsonAlpha Institute for Biotechnology will use long-read genome sequencing to identify genetic contributors to rare diseases in children. The technology has shown promise in uncovering relevant genetic findings in undiagnosed cases, with early studies suggesting a 5-10% diagnostic success rate.
Researchers identified rare genetic variants associated with early onset bicuspid aortic valve disease, which can lead to life-threatening complications. The study aims to enable earlier, more aggressive treatment for affected individuals.
A recent study found that the epigenetic age of a tissue is influenced by the frequency and activity of its stem cells. Stem cells in skin and intestine had a higher rate of division, resulting in a younger epigenetic age compared to those in muscle and blood.
A recent study found that Chinese patients with ovarian cancer often carry a specific variant of the RAD51D gene, which can promote tumor growth. The variant also makes these patients more sensitive to PARP inhibitors, leading to a favorable prognosis and potential new treatment methods.
Researchers found large language models are more accurate with concise, textbook-like medical questions than patient-written summaries. The models achieved higher accuracy when using standardized language, but struggled with variable phrasing and format of patient write-ups.
A Chinese Medical Journal study developed an AI-based system to automate embryo selection and eliminate subjectivity in IVF. The system improved human embryo assessment and selection, achieving higher accuracy in embryo aneuploidy screening than experienced embryologists.
Researchers have discovered a method to identify shark species using medical gauze from first-aid kits after bite incidents. This approach can provide accurate and timely information on species, aiding prevention measures and reducing incidents.
A recent commentary in the Canadian Medical Association Journal argues that free genetic testing may have trade-offs, particularly regarding patient data protection and potential harm. The authors emphasize the need for comprehensive guidance to help practitioners navigate this complex issue.
A new genetic test has identified a mutation causing progressive retinal atrophy (PRA) in English Shepherd Dogs, allowing breeders to eliminate the disease from their population. The test is available for purchase and will help prevent the disease from being passed on to puppies.
Researchers found that subretinal adeno-associated virus 8 injections trigger proinflammatory T-cell responses, but co-injection of immunodominant peptides can modulate the immune system. This study suggests a new approach to AAV gene therapy for retinal diseases.
A new study from the University of Michigan Health Rogel Cancer Center found that nearly three-quarters of patients who were eligible for genetic testing at diagnosis received it over the study period. Those who got testing and found they had a genetic variant were most likely to talk with their family about the results.
A novel diagnostic test combining LAMP molecular amplification with a 3D printer-based DNA extraction system shows comparable sensitivity to PCR, offering a simple and rapid solution for detecting T. cruzi infection in newborns. Early detection is crucial for effective treatment, which was successfully applied in the study.
Pharmacogenomics (PGx) testing can predict how patients will respond to systemic therapies, enabling personalized treatment plans and optimizing medication dosages. A specific gene variant, HSD3B1, has been linked to castration-resistant prostate cancer progression.
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.
The RENEW system, launched in 2022, uses new research discoveries to pinpoint genetic variants causing rare diseases. Researchers successfully diagnosed 63 patients out of 1,066 undiagnosed cases with an average diagnosis time of 20 seconds.
A study published in Genetics in Medicine found that workplace genetic testing led to increased health behavior changes and follow-up with healthcare professionals among employees who received test results indicating elevated cancer or heart disease risk. Employees with negative test results reported feeling reassured about their healt...
Researchers developed a rapid genotyping test for patients with central nervous system lesions, detecting key mutations associated with brain cancers in samples taken during a lumbar puncture. The test eliminated the need for surgical brain biopsies in seven cases and significantly accelerated time to treatment, from an average of 12 d...
A study published in BMC Medicine found that personalized alcohol-reduction advice based on genetic information significantly reduced alcohol consumption among young excessive drinkers. The intervention group showed lower alcohol consumption and AUDIT-C scores compared to the control group, with continued reductions in scores over time.
Kotaro Sasaki and his team developed an in vitro seminoma model to study chromosomal anomalies and signaling pathways in testicular cancer. The model sheds light on the cellular origin of seminoma, providing new insights into its development.
A study found that low doses of filtered kretek cigarette smoke altered rat lung histometric measurements, increasing the size of respiratory bronchioles. P53 gene overexpression was also observed in response to exposure. The findings suggest potential health risks from even low levels of kretek cigarette smoke.
This study found that lowering the fecal immunochemical test positivity threshold can achieve comparable sensitivity and specificity to the multitarget stool RNA test without additional testing. The findings are similar to previous observations with multitarget stool DNA testing, suggesting a potentially simpler screening method.
Pharmaceutical genomic testing can optimize drug dosages and minimize adverse events in treating metastatic prostate cancer. By understanding an individual's genetic variations, clinicians can tailor treatments more effectively.
A new study from the University of Lausanne reveals that both high and low levels of the AFF3 protein can lead to severe intellectual deficits and developmental disorders. The research, led by Alexandre Reymond, identifies a critical role for the gene in development and highlights the importance of precise dosage.
Scientists have discovered 17 new genes involved in clonal haematopoiesis, a process associated with ageing linked to increased risks of blood cancers. The findings highlight the clinical significance of these genes in driving mutant blood cell clones, offering new avenues for studying disease development and promoting healthier ageing.
Researchers found that specific combinations of interferon proteins, including I, II, and III, are associated with various lupus symptoms like skin rashes, kidney inflammation, and joint pain. Elevated levels of these interferons can lead to severe disease presentations.
A new study published in JAMA Oncology highlights the importance of testing for measurable residual disease (MRD) in patients with acute myeloid leukemia (AML) undergoing bone marrow transplants. The researchers found that detecting MRD can help predict cancer recurrence and improve patient outcomes.
A new genetic testing procedure identifies patients at high cardiovascular risk due to clonal haematopoiesis and carotid artery stenosis. This allows for early detection of increased mortality and a personalized cardiovascular risk profile, enabling therapy adaptation and prevention of atherosclerotic disease progression.
A global consortium has studied the connection between a specific gene variation and Pick's disease, a rare form of early-onset dementia. The research found that the MAPT H2 genetic variant is associated with an increased risk of Pick's disease in people of European descent.
Researchers discovered that mutations in noncoding regions of cancer-driving genes can alter mRNA abundance, leading to increased or decreased protein production. This discovery may lead to the development of prognostic testing tools and a better understanding of gene regulation mechanisms in cancer progression.
Young breast cancer survivors without germline pathogenic variants are at lower risk for developing a second primary breast cancer within the first decade after diagnosis. This study informs treatment decision-making and follow-up care considerations in this population.
A new study found that access to genomic testing for cancer is limited by factors such as test availability, patient information, and insurance coverage in both Japan and Switzerland. Despite universal insurance coverage, barriers persist due to differences in hospital accessibility, language barriers, and varying levels of reimbursement.