Articles tagged with Genetic Screening
A new model system has enabled scientists to conduct powerful genetic studies directly in the parasite Toxoplasma gondii, leading to a better understanding of its biological processes. This discovery could provide valuable leads on how to stop parasite growth and prevent diseases affecting millions of people.
Researchers discovered a specific clone of bacteria responsible for most cases of Legionnaires' disease, highlighting the genetic background of Legionella pneumophila. The study found that this clone has a high prevalence in human disease due to its ability to evade host immune responses.
A study published in Neurology has found familial genes for sporadic hemiplegic migraine in people without family history. The research identified variants of three known genes in 18% of participants, suggesting genetic testing may help diagnose and treat the condition.
Researchers have discovered 36 bottlegourd accessions with complete resistance to ZYMV, a major scourge of commercial cucurbits. Grafting popular watermelon cultivars onto resistant bottlegourd rootstocks may provide a sustainable solution to control the virus.
A study examines the impact of genetic screening for Gaucher disease on pregnant couples, revealing a 66% reduction in birth prevalence of moderate type 1 GD through terminations. However, it is debatable whether this represents a true benefit, highlighting the need for a combination of traditional and medical counseling.
Scientists identified molecular markers linked to two root-knot nematode resistance genes, enabling breeders to efficiently screen for resistant plants. This breakthrough allows for faster and cost-effective development of root-knot resistant soybean crops.
The American College of Medical Genetics recommends that all newborns be screened for 29 serious disorders, which can lead to death or mental retardation if left untreated. Early detection and treatment through newborn screening can make a significant difference in the long-term outcome of affected children.
Preimplantation genetic screening (PGS) does not increase ongoing pregnancy or live birth rates in women over 35 undergoing IVF. The technique's effectiveness has been called into question due to various limitations, including the potential for biopsy errors and chromosomal analysis biases.
A study of 9,178 people in Denmark found that those with two copies of the H63D genetic defect were twice to three times more likely to develop stroke than those without the gene. The study suggests a link between the H63D gene and increased risk of stroke, but the exact mechanism is unclear.
A large-scale reverse genetic screen has identified complex haploinsufficient interactions in S. cerevisiae, revealing a significant number of genes that interact with actin.
Researchers have compiled genetic information on over 1,000 patients and controls in the largest-scale search for genes underlying sporadic ALS. The study aims to clarify the role of genes or lack thereof in the disease, with potential implications for therapies and a cure.
In a study published in PNAS, researchers found that female pronghorns prioritize male vigor over ornamentation when choosing a mate. This leads to the survival advantage of offspring sired by these vigorous males, as they exhibit faster growth rates and increased survival up to five years.
The authors of a commentary propose developing educational messages about genetic testing to address misunderstandings and societal fears. This could involve collaboration between professional organizations, patient advocacy groups, and the public at large to improve the interpretation of test results.
Researchers at Duke University Medical Center have developed a method to visualize the heartbeat of fruit flies, enabling them to identify genetic mutations associated with human heart disease. The team inserted a mutated gene into the fly genome and observed its effects, revealing similarities with human dilated cardiomyopathy.
Researchers identified 235 different mutations in 310 patients, with 70% of Romano Ward probands successfully genotyped using standard methods. The new approach aims to facilitate genetic testing for LQTS in a broader group of individuals, including those receiving QT-interval prolonging drugs and family members.
A definitive gene screen has confirmed the major histocompatibility complex genes' significant influence on multiple sclerosis (MS) genetics. The study, which analyzed genetic data from over 730 families, found critical implications for future MS research directions.
A new gene scanning technique called meltMADGE enables the discovery of rare genetic variations associated with various diseases. Researchers analyzed nearly 10,000 middle-aged individuals and found associations with high cholesterol levels and potential protective effects.
Dr. Piero Rinaldo calls for improved newborn screening due to inconsistent use of existing technology and variability in quality parameters. He highlights the success of secondary analysis in reducing false positives and improving screening value.
A unique three-year project found that genetic screening can lead to uncertainty and anxiety among individuals at risk, while those with symptoms face difficulties in diagnosis and treatment. Researchers call for urgent attention from health policymakers to address these issues and ensure accessible care.
A novel mutant gene variant of MLH1 significantly increases the risk of colon cancer among Israeli patients, with a 40-percent lifetime risk. Researchers discovered the gene in Sephardic and Ashkenazi Jews, Muslim and Christian Arabs, and other ethnic groups, suggesting its widespread presence globally.
A genome-wide screen reveals new functions for old genes associated with chromosome cohesion, a process keeping chromosomes together until cell division. The study identified 17 genes involved in this critical aspect of genetic material manipulation.
The HART study found HPV testing was more sensitive than cytology for detecting pre-malignant cells, but less specific. Surveillance at 12 months was as effective as immediate colposcopy for women with minimal abnormalities. This approach could improve detection rates of cervical cancer without increasing colposcopy referrals.
A Stanford-led team discovered 12 genes relevant to endometriosis-related infertility, offering potential targets for new treatments. These findings could lead to improved diagnosis and treatment of the disease, reducing reliance on surgery and medication.
Researchers have developed a new genetic screening method that narrows the pool of candidate genes from thousands to fewer than 100, potentially saving time and money. The technique uses a combination of quantitative trait locus mapping and microarray technology to identify genes with differential expression, which are more likely to b...
Scientists have developed a new genetic screening technique that narrows the pool of candidate genes from thousands to fewer than 100, potentially speeding up the search for genes responsible for inherited traits. The method combines two established techniques and has been tested on fruit flies, with promising results.
Researchers have discovered genetic variations associated with high blood pressure, enabling a predictive test for hypertension risk. The test detects GRK4 protein variations linked to sodium elimination errors, significantly increasing lifetime risk.
Researchers at the University of Illinois Chicago have discovered a new way to identify prions, the causative agents of mad-cow and Creutzfeldt-Jakob diseases. The study used yeast to pinpoint unidentified prions, which may be related to the sudden appearance of CJD in older adults.
Researchers will examine genetic factors that might predispose people to ischaemic stroke, using a novel molecular strategy and data from 500 patients. The study aims to identify genes involved in stroke and develop new treatments, which could increase protection against subsequent strokes.
Scientists at Massachusetts General Hospital found a region on chromosome 10 that may harbor a genetic variant predisposing people to late onset Alzheimer's disease. The researchers believe this variant could be more potent than previously discovered risk factors like ApoE4 and A2M.
The March of Dimes criticizes a newborn screening report that favors cost savings over infant health. The organization recommends universal access to core screening tests and prioritizing the early detection of rare diseases to improve child health outcomes.
A study published in Nature Genetics found that a reduced-calorie diet selectively lowers the activity of genes related to inflammation and free-radical damage in the aging brain. This may lead to improved cognitive function and motor skills, as well as lower risk of age-related neurological disorders.
Pediatric heart transplant patients with a specific cytokine gene profile may be identified as 'rejecters', indicating a higher risk of rejection. Researchers plan to evaluate the screening's value in tailoring immunosuppression to prevent serious episodes and graft loss.
Researchers have identified three recurrent BRCA1 mutations in Polish breast-ovarian cancer families, suggesting founder mutations. These mutations, 5382insC, C61G, and 4153delA, account for 82% of the study's findings, enabling more efficient screening and diagnosis.
A survey of 95 individuals with a parent or sibling diagnosed with colon cancer found strong interest in genetic testing for susceptibility to the disease. However, many fail to follow recommended screening guidelines, highlighting the need for targeted educational efforts and interventions.
Researchers are conducting a national genetic study to identify the genetic markers that contribute to Parkinson's disease. The study aims to enroll 600 pairs of siblings with Parkinson's disease, using information from the U.S. Human Genome Project to isolate genetic markers.
A two-year public service project will screen people in 14 western NC counties for hemochromatosis, a genetic illness causing excessive iron absorption. The project aims to increase awareness and identify individuals at risk before chronic health conditions develop.
A Mayo Clinic study found that a genetic defect known as long-QT syndrome may be the cause of many unexplained drownings. The research identified a genetic mutation in a 19-year-old woman who died after a near-drowning, and subsequent testing revealed that her mother and sister also had inherited the condition.
A study found that a significant number of infertile men have cystic fibrosis gene mutations undetected by routine screening. This raises concerns about the risk of passing on defective genes to future generations. The researchers suggest improving screening methods for men and testing women for gene mutations to mitigate this risk.
Scientists have uncovered a genetic cause for urinary tract disorders, linking GATA-2 protein to proper genitourinary tract development. The finding paves the way for diagnostic and treatment strategies for bladder and kidney disorders in newborns.
A new study reveals that many laboratories offering genetic tests for cystic fibrosis don't test for enough mutations, which can lead to unreliable results. The recommended widespread screening is premature due to the lack of standardization in testing labs.
A recent study published in JAMA found that only 3.3% of white women and 0% of black women with breast cancer had disease-related BRCA1 mutations. The researchers conclude that widespread screening is not necessary for the general American population, but may be beneficial for high-risk families.
Researchers have found a genetic component to blood clotting abnormalities that increase the tendency of forming dangerous clots on the inside lining of blood vessels. The studies suggest that genetic variations in certain genes may contribute to increased risk of heart disease and stroke.
Genetic testing offers disease predisposition insights but also poses risk of discrimination and invasion of privacy if not properly regulated. Dr. Arthur L. Caplan warns that a lack of universal healthcare coverage and inadequate protections hinder the benefits of genetic screening.
Researchers have discovered that saliva is a reliable source of genetic material for DNA screening, eliminating the need for blood samples and associated risks. This breakthrough could make genetic testing more accessible to populations previously outside the medical mainstream.
A new company, Xanthon Inc., will develop and market a genetic detection diagnostic kit using advanced electrochemistry. The kit aims to improve the efficiency, speed, and accuracy of cancer and infectious disease diagnoses.