Articles tagged with Mutation
Belgian researchers have developed an all-in-one test to identify healthy embryos for transfer, reducing the risk of passing de novo genetic diseases. The test uses long read sequencing and can detect copy number variants and single nucleotide variants in a single workflow.
Researchers found a mutation in ELOVL4 enzyme impairs communication between neurons, leading to impaired motor control and coordination. The study provides new insights into the essential role of ELOVL4 in motor function and synaptic plasticity, suggesting potential therapeutic strategies for patients with spinocerebellar ataxia.
A USF Health study found that deleting a single gene, Foxo1, promotes the growth of functional lymphatic valves in both young and adult mice. This discovery offers a promising early treatment approach for hereditary lymphedema, a chronic condition characterized by fluid accumulation under the skin.
Researchers identified a genetic mutation in nonhuman primates that closely resembles Pelizaeus-Merzbacher disease, a rare and progressive disorder affecting the central nervous system. The discovery was made possible by a massive genomic database built at OHSU's Oregon National Primate Research Center.
A new study published in DNA Repair shows that hydroxychloroquine exhibits DNA-damaging and mutagenic effects at a clinically achievable dose. The findings suggest the possibility of additional side effects, particularly in patient populations, and emphasize the need for careful risk assessment and informed consent.
Researchers identified a genetic mutation linked to a weakened immune system response in the gut, leading to rare and severe inflammatory bowel disease. The study found that mutations in the IFIH1 gene result in abnormal production of the MDA5 protein, causing improper immune activation and inflammation.
Researchers found impaired neurotransmitter release and synaptic signaling in human-derived neurons from patients with schizophrenia and a rare genetic mutation. This discovery provides insight into the cellular pathways perturbed in schizophrenia and offers a lead for studying this biology.
Researchers used a machine-learning algorithm to identify novel gene candidates associated with immune traits in mice, including 101 new genes with over 95% chance of being required for immunity. The study's software, Candidate Explorer, helps predict causation of mutations and has already verified hundreds of genes with novel functions.
A new study published in the American Journal of Pathology uses Fast IR imaging-based AI to identify tumor type in lung cancer, providing a promising diagnostic method for future testing and treatment prediction. The analysis takes only half an hour, offering a significant improvement over current methods.
Researchers at H. Lee Moffitt Cancer Center discovered that acral nevi have a distinct mutation profile compared to acral melanoma, with activating mutations in the BRAF gene being very common in acral nevi. The study found that only 10% of patients had activating mutations in the NRAS gene.
A new genetic mutation found in African Americans significantly increases risk of atrial fibrillation and heart failure, prompting researchers to recommend genetic testing for this population. The study also identifies a potential link between a newly discovered gene and early-onset AFib.
Researchers used CRISPR to study tomato gene interactions, revealing a complex relationship between mutations and fruit size. The findings suggest that predicting the effects of mutations on different varieties is crucial for efficient crop breeding.
Researchers discovered a link between the mutated enzyme phenylalanine hydroxylase (PAH) and increased oxidative stress in mouse models of Folling Disease. This finding may explain some comorbidities found in adult PKU patients and has implications for understanding the disease.
A novel mechanism has been identified that might explain why a rare mutation is associated with familial Alzheimer's disease. The presence of the S198P mutation resulted in elevated levels of A? peptides due to rapid folding of APP, leading to faster production and deposition of A? peptides.
A study at the University of Helsinki uses machine learning to analyze bone marrow samples and identify genetic mutations associated with myelodysplastic syndrome (MDS). The technique provides new insights into disease progression and can help assess and diagnose hematological malignancies.
A Phase 3 study found a three-drug regimen safe and effective in improving lung function, respiratory symptoms, and nutritional status in 6-11 year olds with F508del mutation, representing about 90% of US cystic fibrosis population. The treatment also showed significant improvements in sweat chloride concentration.
Scientists have discovered that large numbers of inherited genetic mutations collectively increase cancer risk, particularly for late-onset types. This breakthrough could lead to more effective early detection strategies and personalized cancer treatments tailored to an individual's genetics.
A genetic defect has been identified as a key factor in the development of MacTel, an eye disease that can lead to vision loss and blindness. The discovery provides new insights into the condition and may enable clinicians to better diagnose and treat it.
Researchers at A*STAR's Genome Institute of Singapore have developed a novel CRISPR-based gene editor, CGBE, to treat genetic disorders. The CGBE gene editor enables precise changes to single-nucleotide mutations in the human genome.
Researchers at the University of Leeds have discovered a new study identifying genetic mutations that suggest VEXAS syndrome is more prevalent than first thought. The disease affects only men and causes unexplained fevers, painful skin rashes, and reduced blood cell count.
Researchers identified somatic gene mutations in brain cells of people with schizophrenia that disrupted synaptic function and affected proteins critical for neural signaling. The study found that these rare mutations could contribute to the disease's neuropathology, particularly in genes associated with glutamate receptor function.
Researchers at WVU and Marshall University are analyzing COVID-19 samples to identify new variants, including the UK Variant B.1.1.7, which is believed to be more contagious than the original virus. The team aims to understand how these variants evolve and potentially develop therapeutics or vaccines.
Researchers at Harvard University discovered that zebrafish fins can be transformed into complex limb-like structures through genetic mutations. The study reveals that the ability to form limb-like structures was present in the common ancestor of tetrapods and teleost fishes.
A recent study found that non-white patients are disproportionately excluded from receiving the latest precision medicines for cystic fibrosis due to genetic test limitations. The drug trials were primarily conducted on non-Hispanic white patients, leading to a lack of representation in the patient registry.
A new study stratified tumors into 112 subtypes and found Master Regulator proteins control the transcriptional state of each subtype. Targeting these proteins with novel drug classes could benefit a larger fraction of patients. The analysis identified 24 Master Regulator modules, mechanistically controlling cancer cell survival.
A study at Columbia University Irving Medical Center found that specific functional units within genes, called exons, can impact autism severity. The researchers analyzed genetic and clinical data from over 2,500 people with autism and discovered that children with truncating mutations in the same exon often exhibit similar symptoms.
Researchers at Hiroshima University have identified two novel genetic mutations in an infant with anti-N-methyl-d-aspartate receptor encephalitis, a condition that affects the brain's immune response. The new method uses a NF-κB reporter assay to precisely evaluate the harm caused by IRAK4 gene mutations.
Researchers have discovered a genetic connection between frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS), with the same huntingtin mutation associated with Huntington's disease. The study opens up possibilities for gene therapy targeting this mutation, which could lead to personalized medicine.
Researchers at Children's Hospital of Philadelphia (CHOP) resolved a severe lymphatic disorder in a girl with Noonan Syndrome by targeting the SOS1 gene pathway. The treatment, an MEK inhibitor, led to a resolution of symptoms within three months and complete remodeling of her lymphatic system.
A genetic mutation in the 'coat' of a brain infection-causing virus may allow it to escape neutralizing antibodies, increasing the risk of developing a fatal brain disease. Researchers have identified this mutation in the mouse equivalent of JC polyomavirus and found that it prevents monoclonal antibodies from interacting with the virus.
A Mayo Clinic study found that 13.5% of cancer patients had inherited genetic mutations associated with their cancer development. The discovery could lead to targeted cancer therapies and improved survival rates for patients with these high-risk mutations.
A study by researchers at UC Santa Cruz reveals the molecular mechanisms behind the 'night owl' sleep disorder, which affects one in 75 people of European descent. The genetic mutation identified alters a key component of the biological clock, causing people to stay up late and sleep in late.
Scientists use a custom robot to survey how mutations in regulatory regions of the genome affect animal development, revealing that most mutations alter gene expression in some way. The study finds that regulatory regions encode valuable information densely and that single mutations can have several different effects.
A new study finds that patients with single gene disorders like Bardet-Biedl syndrome carry three times as many additional mutations, clustered around specific genes, which contribute to disease severity. This discovery challenges the traditional view of simple vs complex disorders and opens up new avenues for therapy development.
A preliminary study has identified several genetic mutations associated with a reduced risk for postpartum hemorrhage. The common theme among these mutations is their proximity to genes linked to the immune system.
A new study has identified mutations in single genes that can cause cerebral palsy, challenging the long-held notion that the disorder is caused by environmental factors. The research found that many of these mutations occur randomly and are not inherited from parents, but rather arise during development.
Researchers at Lund University developed a computational model to detect and identify genetic mutations in breast tumours using RNA sequencing. The study found that almost 87% of patients had at least one mutation for which potential drugs exist, with specific genes like PIK3CA associated with good prognosis.
Researchers found people with pale-colored melanomas are more likely to have an albinism gene mutation, which prevents brown pigment synthesis and increases skin cancer risk. This discovery could lead to personalized medicine and earlier treatment for patients with one mutated albinism gene.
A study found that at least 3.5% of patients with severe COVID-19 have genetic mutations in antiviral defense genes and 10% create 'auto-antibodies' that harm the immune system. These findings provide a potential explanation for why some people develop severe forms of the disease.
Researchers found a strong correlation between genetic mutations PiZ and PiS and increased COVID-19 mortality rates in countries with higher mutation prevalence. These mutations lead to alpha1-antitrypsin deficiency, protecting lung tissues from damage.
People with pale-colored melanomas are more susceptible to developing rare genetic mutations associated with albinism. Researchers plan to collect samples to compare genotype and develop personalized monitoring for patients with one albinism gene mutation.
A new study has identified 32 genes responsible for inherited hearing loss in Israeli Jewish families, including a previously unknown gene mutation. The research provides immediate implications for genetic counseling and personalized treatment options for patients with hearing loss.
Researchers have discovered a shared protein fingerprint in patients with the most severe manifestations of hypertrophic cardiomyopathy, a common inherited heart disease. This finding suggests that treatments targeting these similarities could be effective in treating multiple patient varieties.
Researchers, led by University of Delaware biologist Shuo Wei, have won $1.8 million in NIH support for their study on birth defects caused by genetic mutations in neural crest stem cells. The study focuses on the DDX3X gene and its role in developmental disorders.
A large international consortium study found over 5,000 genetic mutations affecting blood characteristics worldwide. Researchers identified specific mutations linked to increased lymphocyte levels in South Asian populations, highlighting potential risks and treatment targets.
A new study identifies a specific gene's role in fertility, finding mutations in this gene are associated with early menopause. The researchers used genetic techniques to find genes involved with eye development and discovered the gene is essential for reproductive organs.
Researchers at Tokyo University of Agriculture and Technology have developed a nanopore technique that can detect single-point mutations in circulating tumor DNA (ctDNA) with high accuracy. The method uses statistical analysis to identify the position of genetic mutations, paving the way for earlier and safer tumor detection.
Researchers at Mount Sinai Hospital have discovered a novel genetic sequencing technology that identified the cause and treatment of a previously unknown severe auto-inflammatory syndrome. The technology, tailored to the patient's own genetic code, pinpointed an unknown mutation in the JAK1 gene causing permanent immune system activation.
Researchers at the University of Pennsylvania have identified a new genetic cause of Charcot-Marie-Tooth disease, a debilitating neurodegenerative disorder that affects nearly one in two thousand people. The discovery sheds light on the genetic underpinnings of the disease and may hold answers to new gene therapies.
A study published in Science found that a large mutation called a 'supermutation' affects the coloration of North American stick insects, transforming continuous variation into discrete color morphs. This discovery provides insights into how genetic variation is packaged into biological diversity, such as morphs and species.
Researchers identified a strong bias towards U residues in SARS-CoV-2 mutations, suggesting a defense mechanism to degrade the virus. Natural selection allows the virus to adapt, but mutational processes may be hindered by human proteins.
Researchers have identified a rare mutation of the TP53 gene that leaves individuals at a higher risk of developing multiple types of cancer over their lifetime. This mutation is most commonly found in the Ashkenazi Jewish population and may confer a lower lifetime risk compared to classic Li-Fraumeni syndrome.
Biomolecular engineers at Rice University have developed a gene-editing technique that dramatically enhances the accuracy of CRISPR-based edits. The new technique, called A3G-BE, precisely modifies single targeted cytosine mutations while minimizing unwanted editing, showing significant success in treating disease-relevant contexts.
Researchers found that mice with a common genetic mutation in autism spectrum disorder had delayed and weaker blood vessel responses, which led to neuronal dysfunction and autistic traits. The study suggests that problems with blood vessels begin early in life and can contribute to the development of autism.
A study published in Nature found that blood cell mutations linked to leukemias become inevitable as people age, especially in the Japanese population. The research identified genetic variations associated with increased risk of these mutations, which can be detected through a simple blood test.
Scientists have identified long-concealed genetic mutations in tomatoes using a new technique called long-read sequencing. The analysis reveals that these mutations can alter key characteristics such as flavor and weight. By studying the impact of these mutations, researchers hope to create new tomato varieties with improved traits.
Researchers at the University of Maryland School of Medicine have identified a new genetic defect linked to amyotrophic lateral sclerosis (ALS), a devastating condition causing progressive paralysis and mental deterioration. The discovery may lead to new treatments for ALS, with potential implications for other neurodegenerative diseases.
Researchers used a new genetic engineering technique, known as base editing, to repair a single mutation in the Tmc1 gene, restoring partial hearing in mice. The technique has potential for treating other genetic forms of hearing loss and diseases.
A new study from UCL-led researchers has identified the earliest brain changes due to Huntington's disease, detecting damage 24 years before clinical symptoms appear. The findings provide vital insights into the optimal time to initiate treatments, potentially delaying or preventing neurodegeneration.
A new study compares the distribution of mutations in human tumours to those in chimpanzees and gorillas. The research reveals that human tumours accumulate mutations in regions similar to those found in non-human primates, challenging previous theories on the genetic causes of cancer.