Articles tagged with Genetic Variation
Genetic testing using high-throughput sequencing (HTS) technology has significantly improved detection rates for thalassemia, offering a valuable model for high-prevalence regions. HTS-based genetic testing offers greater sensitivity and specificity without adding significant costs.
A study published in Nature Metabolism found that four percent of Greenland's Inuit population has a gene variant that increases their risk of type 2 diabetes by tenfold. Exercise has been shown to increase insulin sensitivity in these individuals, suggesting it may be an effective way to reduce their risk of developing the disease.
Researchers identified a novel genetic risk factor for SARS-CoV-2 infection, linking a PTPN2 variant to increased ACE2 expression and susceptibility. The study suggests Tofacitinib may mitigate this risk, offering new treatment options for patients at higher genetic risk.
A multi-institutional study led by Mayo Clinic researchers has improved the accuracy of genetic testing for BRCA2 variants, enabling precise risk assessments and personalized treatment plans. The findings will aid in identifying patients who may benefit from targeted therapies such as PARP inhibitors.
Researchers at UTHealth Houston have discovered two novel genes, DYRK1A and EGFR, linked to genetic mutations causing epileptic brain lesions. This breakthrough offers a new framework for understanding epilepsy and developing targeted therapies.
A new system can quickly identify emerging virus variants and provide information on their genetic changes, helping to understand why they spread differently in human populations. This enables the development of more effective vaccines and targeted treatments for diseases such as flu, COVID, and tuberculosis.
A new genetic link has been identified between the DDX53 gene and autism spectrum disorder (ASD), providing crucial insights into the biological underpinnings of the condition. The study found that variants in the DDX53 gene contribute to ASD, particularly in males, highlighting its potential role in the male predominance observed in ASD.
A new study reveals insights into leveraging allele dosages in sweetpotato breeding practices to improve key agricultural traits. Researchers found that differences in allele dosage significantly impact root weight, plant architecture, and flesh color.
Researchers identified genes that impact tooth development and variation among ethnic groups. They found associations with tooth dimensions on genes inherited from Neanderthals and other genetic variants.
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.
Researchers linked genes to hallmark features like tau tangles and amyloid plaques, as well as other less understood brain changes. The study identified a genetic variant in the APH1B gene directly influencing tau tangle formation, and confirmed the APOE gene's role in granulovacuolar degeneration.
A team of researchers discovered that a previously ignored microRNA, mir-193, is the actual melanic color switch in butterflies and moths. Disrupting mir-193 eliminated black and dark wing colors in three butterfly species.
Researchers at the University of Konstanz have discovered that different mutations of the tumour suppressor p53 affect pancreatic carcinomas differently. The study found that two variants of p53 selectively control distinct metabolic pathways, providing new insights into cancer development.
The study analyzed DNA from over 100,000 participants and found that nearly 2,000 carried at least one genetic variant linked to these diseases. The findings have led to life-changing discoveries and new insights into personalized medicine.
Researchers have discovered a monoclonal antibody capable of targeting multiple SARS-CoV-2 variants, including recent Omicron strains. K4-66's exceptional ability to adapt to the virus's frequent mutations makes it a promising candidate for vaccine and therapy development.
Researchers found a strong link between depression and menstrual pain in a new study published in Briefings in Bioinformatics. Depression may be a cause of dysmenorrhea, rather than a consequence, according to the findings.
A new whole-genome study challenges the long-held belief that Armenians are descendants of Phrygian settlers from the Balkans. Instead, researchers found a genetic input into the region from Neolithic Levantine farmers, suggesting a large-scale post-Early Bronze Age migration wave across the Middle East.
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.
Ochsner Health has been chosen as a site for the Global Parkinson’s Genetics Program, a study aimed at identifying genetic links to Parkinson’s disease in underrepresented populations. The study will genotype over 150,000 individuals from around the world, providing population-specific insights into the basis of PD.
Scientists have discovered a weakness in antibiotic-resistant bacteria that can be exploited to stop the spread of this public health crisis. By understanding the link between magnesium limitation and ribosome variants, researchers may develop novel drug-free approaches to combat antibiotic resistance.
A rare missense variant in STAT6 was found to protect against moderately severe to severe T2 high asthma. The variant reduces the capability of cells to respond to and further activate T2 inflammatory response.
Researchers have developed a new CRISPR-Cas method to decipher the function of genetic variants that contribute to cancer. The approach creates tens of thousands of cells with different gene variants, allowing scientists to identify which variants make cancer cells resistant to standard drugs.
Researchers at Tel Aviv University discovered a variant of TMEM16F protein that enhances the spread of Parkinson's pathology, potentially leading to new treatments. The study found that cells with the mutation secrete more pathological α-synuclein, which can form Lewy bodies and damage brain cells.
A recent study has uncovered a genetic variant in the PSA gene that is associated with aggressive prostate cancer. This finding could lead to the development of a novel point-of-care device that can identify high-risk patients with low blood PSA levels, enabling early detection and treatment.
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.
The 17-beta-hydroxysteroid dehydrogenase 13 gene plays a significant role in regulating liver lipid metabolism, with loss-of-function variants linked to reduced risk of chronic liver disease progression. HSD17B13 modulation may provide therapeutic benefits for individuals with metabolic liver disease.
The National Comprehensive Cancer Network has updated its guidelines for genetic/familial high-risk assessment, incorporating the latest scientific research and expert recommendations to enhance screening practices and treatment options. The expanded guidelines cover various cancer types and provide guidance on genetic testing, heredit...
Researchers at Kumamoto University have developed a cutting-edge diagnostic tool, Intelli-OVI, to rapidly identify emerging SARS-CoV-2 variants. This system combines advanced DNA detection technology with computational algorithms to offer a quicker and more cost-effective method of monitoring viral mutations.
The new portal connects genetic variant data with protein sequence and structural information, enabling easy visualization of variants on protein 3D structures. This facilitates the analysis of genetic variants' impact on protein function and structure.
Researchers at UCLA Health found an association between childhood attention problems and increased psychosis risk, with genetic variants acting as a middleman. The study used data from over 10,000 children to explore the relationship between attention span variability and psychotic-like symptoms.
The Clinical Genome Resource (ClinGen) has published data on over 2,700 genes curated for clinical relevance to genetic diseases. The consortium has identified 2,420 gene-disease relationships, classified 5,161 unique pathogenic variants and validated 1,557 genes for dosage sensitivity assessments.
Genetic variations in carbohydrate-active enzymes may predict which IBS patients benefit from low-carb diets, offering potential personalized treatment options. A study of 250 IBS patients found that those with defective genes showed marked improvement on a low-FODMAP diet.
Researchers identified 254 genetic variants that shape key brain structures, including those controlling memory, motor skills, and addictive behaviors. The study provides a roadmap for understanding the genetic basis of brain-related disorders like Parkinson's disease and ADHD.
A new genomic study reveals high genetic diversity and low inbreeding in the endangered Oriental Stork population, a common finding in many critically endangered species. The study provides hope for the species' long-term survival and suggests that protecting its habitats could rapidly rescue this species from extinction.
A new study finds that the gene for starch-digesting saliva may have first duplicated more than 800,000 years ago, seeding genetic variation that shapes modern diet. This early duplication set the stage for significant variation in the amylase region, allowing humans to adapt to shifting diets with increasing starch consumption.
Researchers propose utilizing human 3D skin models to assess drug binding properties across different skin types. Genetic variations among minority groups can lead to starkly different drug responses across races and ethnicities.
Researchers analyzed DNA sequences from 25,000 pregnant Chinese women and identified genetic variants associated with maternal diseases such as gestational diabetes and obesity. The study also found links between maternal genetics and childhood diseases like gastroenteritis and acute tonsillitis.
A large proportion of gene variants previously classified as 'variants of uncertain significance' (VUS) have been reclassified as benign, according to a study published in the American Journal of Human Genetics. This reduces the total number of VUS by 37%, providing relief for carriers worldwide.
Researchers found that combining APOE4 and TREM2 variants triggers inflammatory response in female brains, damaging brain regions involved in thinking and memory. This study emphasizes the need for tailored approaches to treat Alzheimer's disease differently in men and women.
A new method using shared segments within the genome has identified undiagnosed cases of Long QT syndrome, a rare disorder that can lead to abnormal heart rhythms and sudden cardiac death. The approach was developed by researchers at Vanderbilt University Medical Center and applied to a DNA biobank to detect carriers of rare disease-ca...
A study from University of California San Diego reveals a direct association between inherited genetic variants in mitochondrial DNA and the severity of Gulf War illness. The findings support an emerging hypothesis that GWI is driven by mitochondrial dysfunction rather than inflammation.
A UD researcher has received a $2.3M NIH grant to investigate inherited retinal diseases. The funding will support groundbreaking research that could lead to significant breakthroughs in understanding and addressing these conditions.
Treatment-emergent nirmatrelvir resistance mutations were commonly detected in immunosuppressed individuals, but at low frequencies and transient nature. The study suggests a low risk for the spread of nirmatrelvir resistance in the community with current variants and drug usage patterns.
Researchers have developed a risk assessment tool using deep learning to decipher rare genetic variants. The method, called DeepRVAT, predicts gene impairment and potential impact on health, improving disease diagnosis and personalized medicine.
Researchers at the Icahn School of Medicine at Mount Sinai have identified a novel genetic variant associated with intellectual capacities and educational outcomes. Tandem repeats in the AFF3 gene were found to disrupt genetic instructions, impacting cognitive abilities.
A recent study by the Wellcome Sanger Institute and GeneDx analyzed nearly 30,000 families with developmental disorders, revealing that known genes explain over 80% of cases caused by recessive genetic variants. The team identified several new genes associated with these conditions, providing answers for previously undiagnosed families...
Researchers found that border-associated macrophages (BAMs) with ApoE4 protein produce inflammatory oxygen free radicals, damaging blood vessels. Removing BAMs or reducing ApoE4 expression eliminated the harmful vascular effects. The study may help identify new approaches to preventing or treating Alzheimer's disease.
Researchers identified over 3,000 harmful genetic changes in the RAD51C gene that increase ovarian cancer risk six-fold and breast cancer risk four-fold. These findings can help doctors and diagnostic laboratory scientists better assess cancer risk and provide more personalized care.
Researchers isolated drug-resistant strains of SARS-CoV-2 from immunocompromised individuals who received antiviral treatments. The virus variants showed resistance to Paxlovid and remdesivir, highlighting the need for combination therapy to treat COVID-19 in highly vulnerable patients.
A landmark study has identified novel ancestry-specific genetic variants linked to multiple sclerosis (MS) risk, offering new insights for treatment approaches. The research highlights the potential of ancestry-informed genetic studies to uncover previously unidentified risk factors for MS.
New research has identified four genes with a strong impact on menopause timing, which are also linked to an increased risk of cancer. The study found that women with only one working copy of these genes experience premature menopause, leading to a faster reproductive lifespan.
A new viewpoint review explores the impact of TAAR1 genetic variations on mental health and drug development. The study suggests that rare TAAR1 mutations may contribute to psychiatric symptoms by altering brain function.
Researchers at Gladstone Institutes have developed a streamlined way to engineer bacteriophages, viruses that naturally kill bacteria. The new technique uses retrons to edit phage genomes, allowing for the creation of numerous variants and paving the way for alternative treatments for antibiotic-resistant infections.
A genetic variant in the Syntaxin 17 gene determines the speed of hair greying and susceptibility to skin melanoma in horses. The study found three gene variants at the Grey locus, with the G3 variant associated with a higher risk of melanoma.
A genome-wide association study found that three sequence variants in genes CCDC141 and SCN10A increase the risk of rhythm disturbances in individuals with accessory pathways. These variants are common, affecting up to 62% of carriers, and associate with increased conduction velocity and heart rate regulation.
A recent study uses CNV-seq and WES to detect congenital heart disease, identifying genes contributing to CHD and increasing diagnostic yield. The combination of these technologies boosts detection rates for CHDs, improving prenatal management.
Researchers have shown that repeated administration of lipid nanoparticle-encapsulated mRNA therapy significantly extended survival and reduced serum leucine levels in a mouse model of maple syrup urine disease. The treatment approach may represent a potential long-term universal treatment for MSUD.
Researchers identified genes associated with a thinner cortex and smaller cerebellum, which can lead to uncontrollable shaking of hands. The study also found that faulty protein disposal affects cell function and disrupts neural pathways, making it difficult to treat the condition.
Researchers found that CHEK2 variants do not increase colorectal cancer risk compared to controls. Three low-risk missense variants were identified as potential drivers of breast cancer risk variability.
A study sequenced the genomes of nearly 300 rabbits to understand their colonization success. Researchers found that domestication-linked genes are often eliminated in feral populations due to natural selection, leading to a mix of domestic and wild origin. This helps explain how domestic animals can thrive in the wild.