Articles tagged with Genetic Screening
Researchers found that direct-to-consumer genetic tests can result in clinical false-negative results, particularly for certain populations. For example, 40% of individuals with MUTYH mutations would have been missed, while 19% of Ashkenazi Jewish individuals with BRCA1/2 mutations would also be missed.
Researchers have discovered a new genetic defect that causes intellectual disability, affecting around 3% of the global population. The newly identified gene target will help improve screening programmes and aid in accurate diagnoses worldwide.
A large-scale screen of mouse mutants revealed 38 new genes involved in hearing loss, including those related to metabolic pathways and regulatory processes. These findings provide a rich source of therapeutic targets for the restoration of hearing.
Researchers used CRISPR/Cas9 to selectively shut off a gene for female development, finding that diet has no effect on gonad size when the gene is turned off. This suggests that a specific genetic program must be switched on to permit nutrient level to affect gonad size.
A Rutgers University study has discovered that fruit fly wings remain the same shape even when cells are manipulated to change their division pattern, revealing a new way organs form. This breakthrough could lead to improved diagnosis and treatment of genetic diseases like mitral valve prolapse and van Maldergem syndrome.
A team led by Kiran Musunuru used a stem-cell-based assay to determine the impact of a TNNT2 gene variant on a patient's health. The test successfully identified the variant as benign, allowing the patient and her family to avoid unnecessary genetic screening.
Researchers at UT Southwestern Medical Center used CRISPR genome-wide screening to identify the IFI6 gene as a potent antiviral gene targeting flaviviruses, including West Nile and Zika viruses. The study found that cells with a working IFI6 gene inhibited infection by these viruses in cell culture studies.
Research reveals that routine screening and genetic testing can identify up to 30% of relatives with an underlying genetic predisposition to developing life-threatening aortic diseases. This could lead to earlier detection and potentially save lives.
Scientists at Stanford University School of Medicine have identified a molecular code that unleashes necroptosis, a violent form of cell death. The discovery opens the door to potential new treatments for diseases such as inflammatory bowel disease and multiple sclerosis.
A recent clinical study found that most parents-to-be want access to information from preconception carrier screening, including genetic variants associated with common disorders. However, the interpretation of these variants remains a significant challenge due to limited knowledge about their effects on health.
A study found that most people, including those without a prior connection to the condition, support newborn screening for spinal muscular atrophy. Key benefits cited include better healthcare and life expectancy for affected infants, as well as informed decision-making for future pregnancies.
Researchers at MIT developed a new way to screen for genes that protect against specific diseases by adapting the CRISPR genome-editing system. The new technology identified genes that protect yeast cells from a protein associated with Parkinson's disease, which may also provide protective effects in human neurons.
Researchers have discovered a new mobile colistin resistance gene, mcr-3, in Escherichia coli of pig origin, which may already be widely disseminated. The prevalence of mcr-3 is likely underestimated due to potential transfer between bacterial species.
A new study from the University of Utah School of Medicine shows that brain cells often activate one copy of a gene over the other's, breaking basic genetic principles. This finding suggests new ways in which genetic mutations might cause brain disorders, including mental illness and intellectual disability.
Two mouse mutants, Sleepy and Dreamless, have been identified with excessive and reduced rapid eye movement (REM) sleep, respectively. The mutations have been linked to specific genes, offering a new perspective on the regulation of sleep and wakefulness.
Researchers have identified a gene associated with age-related hearing loss in mice, which could lead to investigations into the equivalent human gene and potential screening programs to predict susceptibility. This discovery may ultimately inform treatment development or timing of interventions.
A study of nearly 350,000 adults found that expanded carrier screening increased detection of carrier status for potentially serious genetic conditions compared to current recommendations. Expanded testing identified more fetuses at risk than guideline-based screening, which was based on self-reported racial/ethnic background.
A new breath test has been developed to identify lung cancer after surgery, using a simple, affordable process that analyzes carbonyl volatile organic compounds in exhaled breath. The test shows great potential for detecting lung cancer at any point, both as primary screening and post-surgery monitoring.
Researchers evaluated an IHC screening tool for ROS1 gene rearrangements in a cohort of 170 patients. The results showed high sensitivity and specificity rates, making it a feasible option for first-line screening in a lung cancer setting.
Researchers identified a gene, neuromedin U (Nmu), that regulates sleep in zebrafish. Overexpression of Nmu causes severe insomnia, while its absence leads to reduced activity during the day. The study improves understanding of sleep regulation and suggests Nmu as a potential candidate for new therapies to address sleep disorders.
New research shows HPV infection screening alone is more accurate than Pap testing for detecting cervical cancer. The study suggests that HPV primary screening can be used as an alternative to current methods, with recommended 3-year intervals for testing.
Researchers at MIT have successfully turned on any desired gene in living cells using the CRISPR/Cas9 system. This breakthrough enables scientists to study gene function and identify genes involved in diseases, such as melanoma. The new method has also been used to screen for genes that confer resistance to cancer drugs.
A Mayo Clinic-led study found that nearly 15% of triple-negative breast cancer patients have deleterious mutations in predisposition genes, including BRCA1 and BRCA2. This suggests a different origin for the disease compared to other forms of breast cancer.
Researchers from Aarhus University developed a comprehensive overview of gene interactions in muscles, providing insights into the effects of exercise on metabolism. The study's results, published in Scientific Data, offer a platform for future research into diseases like diabetes and obesity.
Researchers found a potential early detection window for pancreatic cancer in people with a family history of the disease. The study suggests that identifying susceptibility genes and designing risk management programs can help detect the disease earlier, improving outcomes.
A new study using next-generation DNA sequencing shows that it can accurately screen embryos for genetic disease prior to implantation, improving outcomes in IVF treatments. The technique has been shown to be effective, reliable and cost-efficient, resulting in more ongoing pregnancies.
Researchers have developed a comprehensive library of guide RNAs that can be used to identify the role of every gene in different cell types. This library was created using CRISPR technology and found that 50 out of 52 guide RNAs successfully cut both copies of specific genes, leading to a thorough understanding of how resistance occurs.
Researchers at the University of Otago and Plant & Food Research have identified the genetic mechanism controlling onion bulb formation in response to changing daylight hours. This discovery will help breed new onion cultivars that can thrive in different environments, increasing crop yields and export revenue.
Researchers at UNC will sequence the genome of 400 infants to determine useful clinical data from genomic tests. The study aims to build a model for informed choices about newborn testing, including educational tools and parental consent protocols.
Researchers found that reducing ataxin-1 protein levels by 20% can significantly delay onset of spinocerebellar ataxia 1 (SCA1) symptoms. A molecular pathway modulated to reduce toxic protein levels may provide a therapeutic approach for this devastating inherited condition.
A recent study published in Cell Reports reveals how certain genes control the ratio of proteins p21 and PUMA, which determines whether tumors adapt or die when faced with p53-activating drugs. The researchers found a handful of genes that fine-tune this balance.
A genome-wide lethality screen using RNA interference technology identified 239 gene candidates essential for cell survival. The researchers developed a high-stringency analysis method to determine which genes result in cell death when knocked down.
A large study found that ABO blood type is a strong risk factor for venous blood clots. The research, published in the Canadian Medical Association Journal, also identified other genetic mutations associated with an increased risk of these conditions.
A genetic screening approach has identified nine new genes associated with bone health, providing clues to the cause of bone disorders such as osteoporosis. The study used a collaborative effort between specialist skills in mouse gene deletion and bone measurement, assessing the strength of bones in 100 mutant mouse lines.
Researchers at Yale University have discovered a new gene mutation that provides hope for new screening methods to identify women at risk of developing endometriosis. The study found that 31% of women with endometriosis carried the mutation, compared to 5.8% of the general population.
Researchers at George Washington University have identified 18 novel genetic markers for autism spectrum disorders, highlighting four distinct subtypes and ten associated variants. These findings provide potential genetic biomarkers for diagnostic screening and advance the understanding of autism's genetic contributions.
A new study couples a complex genetic screening technique in humans with functional validation of results in flies to study human disease. The strategy has the potential to be an effective approach for understanding complex disorders, such as Alzheimer's disease.
Researchers developed a comprehensive genetic test that can screen all 54 known deafness-causing genes in one run, costing $2,000. The new OtoSCOPE test offers quicker answers for families anxious to determine treatment options or learn the likelihood of future children having hearing loss.
Researchers have identified a genetic cause of inherited conditions causing severe fetal abnormalities, potentially leading to treatments for related disorders. The study found that the faulty gene stops cells' 'antennae' from transmitting information.
Researchers identified three genes involved in regulating bone repair rate, explaining why Paget's disease occurs. The discovery could lead to a screening test for early detection and preventative treatment.
A recent study has found that embryo biopsy does not increase the risk of major malformations or health problems in babies born from singleton pregnancies after preimplantation genetic diagnosis and screening. However, multiple pregnancies associated with PGD/PGS showed higher perinatal death rates compared to ICSI children.
A new study by University of Pennsylvania researchers found that common biological processes like insulin metabolism influence the body's daily clock, reversing previous assumptions about one-way communication. The findings suggest potential new treatments for metabolic disorders tied to circadian cycles.
Fruit flies resembling insomniac humans have been created to study the causes of insomnia. The flies exhibit similar behavioral patterns to humans with insomnia, including increased sensitivity to stimuli and difficulty falling asleep. Researchers believe this model can help develop new treatments for insomnia.
Researchers at Michigan State University are using high-throughput genetic screening to identify genes affecting chloroplast structure and function, which could lead to plants bred for biofuel or high-nutrient content. This advanced technology gives scientists a broader perspective on plant metabolism than traditional methods.
Researchers have developed a new method to track down the cause of hereditary diseases more quickly and efficiently. This technique allows for genetic tests that take months today to be carried out in just a few weeks, providing a faster and more cost-effective solution.
Researchers found that genetic screening for type 2 diabetes is not significantly better than traditional risk factors such as weight, blood pressure, and blood sugar levels. The study identified 18 gene variants associated with increased risk, but the value of genetic screening improved as more risk genes were discovered.
A genetic screen revealed that Drosophila mutants with lower arousal thresholds have difficulty staying asleep, likely due to hyperarousability. This finding suggests that changes in arousal threshold may be a common mechanism underlying sleep regulation and is relevant to human insomnia.
A collaborative effort by over 90 researchers from 40 centres analysed genetic data from 70,000 people to identify differences in the genetic code that make some individuals more susceptible to type 2 diabetes. The study found six new genes contributing to the risk, bringing the total to sixteen, and provides valuable insights into the...
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.