Articles tagged with Mutation
Researchers identified a genetic cause of elevated HDL-C levels that paradoxically increases heart disease risk, contradicting the long-held notion that high HDL is protective. The study's findings have implications for understanding the complex relationship between HDL function and heart disease.
Researchers have identified a genetic mutation associated with a high risk of breast cancer in the Chinese ethnic population. The RECQL mutation was found to be present in 0.54% of Southern Chinese women, suggesting it may be an important factor in genetic screening for women with a family history of breast cancer.
A study published in PLOS ONE found a mutation in the APC gene, linked to colon cancer, in an 18th-century Hungarian mummy. The researchers believe that a genetic predisposition to cancer may have already existed in the pre-modern era.
Scientists at UCLA have developed a new approach using CRISPR/Cas9 to correct genetic mutations that cause Duchenne muscular dystrophy. The approach, which can be used in clinical trials within 10 years, has the potential to treat 60% of patients with the deadly disease.
WSU researchers found that the APOBEC protein can cause genetic mutations in actively replicating DNA, leading to cancer. The study reveals how tumors benefit from the protein's activity, which could inform new treatments targeting its activity.
Research at Indiana University identifies a genetic mechanism that drives cancer-causing mutations by mutating genes during DNA replication. APOBEC3G, an enzyme known to trigger harmful changes, may cause these mutations by targeting cytosines in single-stranded DNA on the lagging strand template.
Researchers found a 25-point IQ drop in carriers of the 16p11.2 gene deletion, even in individuals with normal IQ scores. The study quantified the additive effects of genetic mutations on cognition and behavior.
Researchers at the University of California, Berkeley, have made a major improvement in CRISPR-Cas9 technology, achieving an unprecedented success rate of 60% when replacing short stretches of DNA with normal sequences. This technique is especially useful for repairing genetic mutations that cause hereditary diseases.
Researchers discovered a specific gene variant linked to fragile bones in mice with Hajdu-Cheney syndrome, a rare inherited disorder. The study suggests that overactive bone-absorbing cells contribute to the disease's characteristic bone loss and fractures.
Researchers analyzed 43 genes in 172 women with peripartum cardiomyopathy, finding that a genetic mutation in the TTN gene is a common cause. This discovery could inform future research and potentially improve care for affected women.
Researchers have discovered a genetic mutation in West Australian starlings that has led to a significant increase in population within five years. The study found the mutation was beneficial to the birds and provided a potential mechanism for understanding how mitochondrial DNA mutations affect individuals and populations.
Scientists at UT Southwestern Medical Center successfully stopped the progression of Duchenne muscular dystrophy in young mice using a gene-editing technique. The treatment, delivered via adeno-associated virus 9 (AAV9), corrected the genetic mutation that causes the disease and led to improved muscle structure and function.
Researchers discovered a BAP1 mutation in four unrelated US families, suggesting a possible link between the gene and various cancers. The study's findings have important implications for cancer prevention and early detection, particularly for melanomas.
Studies reveal that nearly a quarter of people who experienced SUDEP carried mutations linked to cardiac sudden death, suggesting irregular heart rhythms as a significant cause. Genetic testing could potentially identify people at high risk of SUDEP.
Researchers have identified genes linked to epilepsy using innovative technologies such as gene editing and next-generation sequencing. These findings suggest a spectrum of conditions beyond Infantile Spasms or Lennox-Gastaut syndrome, prompting the exploration of personalized medicine for genetic forms of epilepsy.
Researchers identify common genetic link between heart and neurodevelopmental diseases in children, shedding light on shared causes of cardiac and extra-cardiac abnormalities. The study reveals de novo mutations in genes involved in heart and brain development, suggesting potential for early testing to identify high-risk newborns.
Biologists at the University of York have created a reliable method to detect Parkinson's disease by analyzing fruit flies' visual responses. The study used adapted methods from human vision research and found increased neuronal activity in 'young' flies with Parkinson's mutations, leading to an 85% accurate classification rate.
A study found that even small tumors contain extremely high genetic diversity, which can lead to resistance against standard cancer treatments. This raises important questions about how to reevaluate treatment strategies for tumors with high intra-tumor diversity.
Researchers have developed a new model that can accurately predict which genetic mutations significantly change how genes splice and may warrant increased attention from disease researchers. The model, trained on vast amounts of synthetic biological data, is available online and can help rule out unwanted variations in genetic sequences.
Researchers at Yale University have identified a rare genetic mutation that significantly extends the survival of lung cancer patients with brain metastases. Patients with this mutation live an average of four years with controlled disease in their brains nearly a year after initial treatment.
Scientists have created a nematode model using Caenorhabditis elegans to study cardiac arrhythmias. The model uses the nematode's feeding apparatus, which resembles the mammalian heart's muscle cells, to test substances for treating genetic arrhythmias.
Researchers discovered that genetic background affects mutations in lymphoma tumors across different dog breeds. The study identifies breed-specific genes and molecular subtypes, offering a unique model for understanding how genetics influence cancer development.
The Matchmaker Exchange platform harnesses collective data from across rare disease repositories to uncover similar symptoms and genetic profiles. By protecting patient data privacy while connecting databases through APIs, researchers can identify the genetic causes of rare diseases more efficiently.
Albert La Spada, a UC San Diego professor, has received a $900,000 Harrington Scholar Award to develop a therapy for Spinocerebellar ataxia type 7 (SCA7), a rare neurological disorder. His research may also have implications for Parkinson's and ALS.
The study found that Inuit have special mutations in genes involved in fat metabolism, which lower bad LDL cholesterol and fasting insulin levels. These mutations also reduce height by 2 centimeters in the Inuit, a finding associated with shorter heights in Europeans.
Scientists developed an interactive analysis program called Gingko to study genetic anomalies and provide a simple way to visualize patterns in copy number mutations. This could help clinicians better target medications based on individual cell mutation profiles.
A study found that two newer genetic testing technologies can identify genetic mutations potentially linked to autism in children with certain physical anomalies. The findings suggest that medical evaluation of ASD children may help identify populations more likely to achieve a molecular diagnosis.
The study reveals that C9ORF72 mutations block the transfer of information between the nucleus and cytoplasm, leading to neuron deterioration. The research provides insight into developing targeted therapies for ALS and FTD.
Researchers have discovered how a common gene mutation causes long strands of RNA to block pathways that move proteins into a cell's nucleus, leading to molecular traffic jams. Molecular therapy has been shown to reopen blocked pathways in human and fly cells, providing hope for treatments for ALS and dementia.
A Harvard University collaboration has developed a 3D model of solid tumors that reflects both their three-dimensional shape and genetic evolution. The model explains why cancer cells share an unusually high number of genetic mutations and how drug resistance evolves, shedding light on tumor growth and evolution.
Research found that persistent genetic mutations in at least 5% of bone marrow cells are associated with increased risk of relapse and reduced overall survival for leukemia patients. The study provides a foundation for genomic methods to risk stratify patients with acute myeloid leukemia.
Researchers at the University of Utah are exploring the link between congenital heart defects and neurological disorders in children, discovering genetic mutations that affect both heart and brain function. The goal is to develop precision medicine for CHD patients and tailor treatment based on genomic sequence.
Researchers at NIH's NINDS have discovered a critical transport defect in motor neurons with SOD1 mutations, which causes cells to accumulate damaged materials. Increasing snapin levels during early stages of the disease can correct the problem and improve motor neuron survival.
Recent findings uncover 16th century botanical records documenting heterostyly, a phenomenon later studied by Charles Darwin. The research traces the history of Darwin's work back to early floral prints and descriptions of plants for medicinal purposes.
Researchers at UNC School of Medicine discovered that a single genetic mutation disables a molecular switch in the UBE3A gene, leading to hyperactivation and abnormal brain development. This finding has implications for diagnosing and treating autism, particularly for individuals with Dup15q syndrome.
WSU researchers discover that environmental factors can prompt genetic mutations through epigenetics, changing our understanding of disease and evolution. The study found increased genetic mutations in offspring exposed to the fungicide vinclozolin, suggesting a more significant role for environment in driving intergenerational changes.
Researchers at Northeastern University discovered that a specific mutation in the hipA gene leads to persistent E. coli cells in patients with relapsing urinary tract infections, paving the way for customized treatment regimens.
A Mayo Clinic study has identified abnormalities in the levels and processing of ribonucleic acids (RNA) in patients with sporadic and genetic forms of ALS. The findings, published in Nature Neuroscience, suggest that different factors may contribute to the development of ALS and highlight the need for tailored therapies.
Researchers developed a 'Cytosponge' to collect cells from the gullet, reducing variation between biopsies. The study found patterns of mutations that provide a 'fingerprint' of cancer causes, helping doctors catch the disease earlier.
Researchers detected four known genetic mutations causing thoracic aortic aneurysms and identified 22 previously unknown variants contributing to the condition. This technology enabled personalized care, including preventive surgery and more frequent imaging tests for patients with high-risk mutations.
A new study has uncovered a key factor in the variability of genetic disease severity, enabling prediction and personalized treatment approaches. By analyzing genetic background, researchers can now estimate disease severity, providing hope for improved management and therapy development.
A single genetic mutation in the tga1 gene led to the formation of naked kernels, allowing for easier consumption. This discovery provides insights into the rapid evolution of corn traits through minor genetic alterations.
Researchers at Penn have identified a specific gene, TEX11, responsible for some cases of male infertility. The study found that mutations in this gene are present in approximately 1% of men with azoospermia, a condition where males produce no sperm.
Researchers discovered a buffering mechanism that protects animals from severe genetic mutations, which may hold the key to understanding human diseases. By identifying these mechanisms, scientists can develop new treatments and improve clinical practice.
A decade-long investigation by Wayne State University and Children's Hospital of Michigan researchers identified a key gene mutation that can trigger acute lymphoblastic leukemia. The mutation affects ETV6, a gene that regulates growth rates in bone marrow, leading to an increased risk of blood cancer.
Australian researchers discovered that a single genetic change in Smchd1 affects its function in the cell, leading to debilitating muscle wasting in FSHD. This fundamental understanding could help develop future treatments for the currently untreatable disease.
Researchers have discovered a gene mutation associated with an aggressive form of brain cancer called anaplastic oligodendroglioma. The study found that errors in the TCF12 gene render the protein less able to bind to DNA, leading to reduced activity of other key genes, including CHD1.
Researchers at Mayo Clinic have developed a new molecular classification system for gliomas, which could lead to more accurate diagnoses and personalized treatments. The system categorizes tumors based on three genetic alterations, allowing clinicians to predict patient outcomes and tailor treatment plans accordingly.
Researchers found that genetic mutations accepted by evolution are contingent upon previous mutations, making predictions of long-term evolution challenging. The study also revealed that mutations become entrenched and increasingly difficult to revert over time, supporting the idea that evolution is unpredictable and irreversible.
At least 6.5% of de novo genetic mutations now known to arise during post-zygotic development, affecting clinical outcomes and recurrence risk. Better information on mutation origin will enable more informed reproductive choices.
A new genetic mutation in the TGFB3 gene has been discovered, linking it to serious aortic disorders. This finding allows for improved diagnostic screening, enabling early identification of patients at risk and potentially preventing aortic aneurysm formation through preventive treatment.
Researchers sequenced genomes of nearly 1,000 volunteers and identified genomic variants predicting rare diseases, with over 3% of the US population potentially affected. This study demonstrates the potential for predictive medicine using DNA sequencing, with implications for personalized healthcare.
Researchers have successfully created mice that mimic the symptoms of frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS), two devastating neurodegenerative disorders. The mice exhibit key hallmarks of the diseases, including toxic RNA clusters and TDP-43 protein inclusions.
Researchers discovered a genetic fault preventing SEMA3E from working correctly in two brothers with Kallman Syndrome, leading to the loss of nerve cells regulating sexual reproduction. The study demonstrates a powerful method for identifying genetic causes without relying on large statistical samples.
Researchers introduce single-letter DNA change into human red blood cells, increasing oxygen-carrying haemoglobin production and alleviating symptoms of sickle cell anaemia. The approach is effective, safe, and non-inherited, offering a promising alternative to conventional gene therapy.
A recent study from the University of Texas MD Anderson Cancer Center suggests that profiling normal DNA provides an opportunity to identify inherited mutations critical for patients and their families. Researchers sequenced tumor and normal DNA from patients with advanced cancer, identifying germline mutations in nearly all cases.
A recent study published in the New England Journal of Medicine found that X-linked gene mutations can contribute to azoospermia and male infertility. Researchers identified a deletion in the TEX11 gene on the X chromosome as a potential cause, which can lead to meiotic arrest and prevent the development of viable sperm.
Researchers found that genetic mutations passed from mothers to sons are more likely to increase autism risk. The study provides a comprehensive genetic picture of autism and may lead to the discovery of biomarkers for diagnosis and targeted treatments.
Researchers have developed a strategy for creating customized cancer vaccines based on the unique genetic blueprint of each tumor. By identifying relevant mutations and using synthetic RNA vaccines, they have shown promising results in animal models, paving the way for targeted treatment of various types of cancer.
Researchers at Icahn School of Medicine at Mount Sinai have developed a gene therapy approach that targets and corrects genetic mutations linked to heart failure. The treatment uses molecular scissors to cut out diseased genes and replace them with normal ones, restoring healthy cardiac cell function.