Articles tagged with Sequence Analysis
A new study has identified 17 significant genetic variants linked to Alzheimer's disease in five genomic regions. The findings highlight the value of whole genome sequencing data in gaining long-sought insight into the ultimate causes and risk factors for Alzheimer's, which is the fifth leading cause of death among people 65 and older.
Scientists at Karolinska Institutet and Stockholm University have mapped the cellular architecture of MS lesions using advanced methodology. This reveals how immune cells and glial cells interact in the disease.
The KAUST team developed an open-source platform to detect small DNA differences, revealing over 2 million previously overlooked genetic variants in rice and other crops. This tool will accelerate the discovery of genetic variations for developing crops with improved resilience and yield.
NeXT Personal assay detects up to ~1,800 somatic variants specific to the patient's tumor with a detection threshold of 1.67 PPM and 99.9% specificity. The assay showed linearity over a range of 0.8 to 300,000 PPM.
A study published in Environmental DNA analyzed seawater samples from the Ogasawara Islands, detecting 124 unique fish species and 38 coral genera. The research highlights the importance of monitoring biodiversity in remote regions using efficient methods like eDNA sequencing.
Researchers are using machine learning tools to understand biological traits from images, enabling new discoveries about life on Earth. Imageomics is analyzing the relationship between observable phenotypes and genome, leading to a better understanding of direct connections.
A novel reporter cell experimental system enables the visualization of sequential changes during endothelial-mesenchymal transition (EndoMT) induced by transforming growth factor-β. Researchers identified CD40 as a potential partial EndoMT marker, which suppresses the transition from partial to full EndoMT.
Researchers have developed One-pot DTECT, a compact kit that can detect genetic signatures with high accuracy, enabling rapid point-of-care diagnosis for various applications. The tool has been shown to identify genetic mutations in sickle cell anemia patients and carriers with 100% accuracy.
A pilot study proposes a promising global genomic assay for diagnosing molecular subtypes in pediatric B-ALL, leading to more accurate diagnosis and targeted treatment options. RNA sequencing analysis accurately identified subtypes in all known cases and determined genetic subtype in 79% of previously unknown cases.
A study published in Current Biology reveals that complex green organisms, including land plants and algae, evolved multicellularity almost a billion years ago. Researchers used gene sequencing data to pinpoint the emergence of this trait in filamentous algal lineages.
A research team developed a novel blood test called desNIPT to screen pregnant women for genetic diseases in their unborn children. The test has demonstrated effectiveness in identifying alterations in fetal genes, similar to invasive procedures like chorionic villus sampling or amniocentesis.
The Association for Molecular Pathology published a report outlining considerations for a slice testing strategy, including gene selection and quality. This approach combines the advantages of high-quality gene panels with flexibility and broad scope of exome sequencing.
Researchers examined venom genes in bees and other hymenopteran taxa using comparative genomics. They found that 12 'families' of peptides and proteins were present in all analyzed hymenopterans, indicating a common ancestor possessed these genes. This suggests that Hymenoptera insects are venomous as an entire group.
A novel contamination-detection method enables faster and safer T-cell therapy production, reducing the risk for patients and speeding up treatment. The method uses cutting-edge technology to identify harmful microorganisms within 24 hours.
A new study suggests that analyzing genetic material from nearby healthy tissue may help predict lung cancer's return after treatment. The study analyzed RNA from tumor cells and adjacent, seemingly normal lung tissue and found that the expression of genes associated with inflammation was especially useful for making predictions.
Research reveals that European wildcats and domestic cats generally avoided mating for 2,000 years after domestic cat introduction. However, rates of interbreeding rose rapidly around 50 years ago in Scotland, likely due to dwindling wildcat populations and habitat loss.
A phase 2 clinical trial found that serial blood tests can identify patients who benefit from additional immunotherapies, suggesting a potential early marker of treatment response. The study also showed that ctDNA analyses correlated with tumor size and survival, making it a promising strategy for guiding therapy.
The Illinois-led project will sequence at least 50 soybean genomes from cultivated lines and wild relatives, as well as 350 high-quality draft genomes. This will enable the identification of genetic variation and its incorporation into better crops, ultimately leading to climate-resilient soybean varieties.
Researchers identified abnormal keratin expression patterns in senescent ocular surface cells, which may contribute to severe ocular surface diseases. Gene expression profiles showed substantial differences between senescent and non-senescent cells, highlighting their potential role in pathology.
The study validates a comprehensive genomic profiling assay, NeXT Dx, which detects single nucleotide variants, indels, copy number alterations, and gene fusions. The assay demonstrates high analytic sensitivities and specificity, providing personalized recommendations critical to clinical decision-making.
A team of researchers has generated the first complete sequence of a human Y chromosome, uncovering important genomic features with implications for fertility. The new sequence reveals factors in sperm production and provides insights into medically relevant regions, such as the azoospermia factor region.
A new study has created the largest single-cell atlas of the human kidney, mapping healthy and diseased cell states across over 90 patients. The atlas reveals that certain cell types in the kidney get stuck in a 'maladaptive repair state,' leading to disease progression and irreversible reduction of kidney functions.
A new study reveals that biscuspid aortic valve is caused by mutations in the MINDBOMB1 gene, with significant implications for developing alternative treatments to surgery. The research combines genome sequencing and gene editing techniques to analyze the mechanisms of this congenital defect.
A study by CNIO Breast Cancer Clinical Research Unit shows that genomic sequencing panels are beneficial in 5% of patients, increasing treatment efficacy and patient survival. The use of these panels is recommended for patients with metastatic lung, colon, or melanoma cancer, or those participating in clinical trials.
Researchers analyzed BORIS mutations and protein expression in breast cancer tissue samples, finding frequent mutations associated with breast carcinoma progression. The study suggests the BORIS gene as a potential biomarker for breast cancer.
Researchers identified four fungal proteins responsible for suppressing host plant immunity in infectious diseases, leading to distinct host specificity in over 70% of plant diseases. Understanding the mechanism of this specificity may lead to new crop protection technologies.
Researchers have identified distinct senescence subpopulations and dynamic changes in the transcriptome of human cells undergoing senescence. The study provides new understanding of the heterogeneous nature of senescence and its impact on aging diseases.
Researchers used long-read sequencing to identify novel mutational patterns and complex genomic rearrangements in cancer genomes, including those associated with liposarcoma. This approach offers a more comprehensive understanding of DNA mutations and their impact on cell function.
A recent study analyzed 7,301 metastatic breast cancer patients with MTAP loss, revealing younger age, higher TNBC cases, and BRCA1 mutations. The findings also suggest potential therapeutic agents targeting PRMT5 and MTA2 in MTAP-deficient cancers.
A new study links genetic changes in kidney cancer to patient outcomes, identifying four groups of patients based on mutation presence. This research may lead to more effective prediction of recurrence risk and personalized treatment for thousands of patients annually.
The study reveals that genetic variation is preserved in a highly fragmented population of the Saimaa ringed seal. The unique shape of Lake Saimaa compensates for the detrimental effects of small population size, allowing the species to maintain its adaptive potential.
Researchers have identified three novel pathogenic variants of the ATR gene as predisposing to male breast cancer. These variants were found in a cohort of individuals with early onset and familial breast cancers, using a combination of exome sequencing and functional investigations. The study suggests that extended genetic analysis ca...
Verkko software assembles gapless human genome sequences quickly and precisely, enabling better assessment of genomic diversity and comparative genomics. This innovation accelerates efforts to generate complete genome sequences of various species, improving research and discovery in the field.
A study published in Evolution found that polygamous birds have higher efficiency of natural selection, leading to fewer harmful mutations and increased genetic diversity in small subsets of species with polygamous females.
Researchers analyzed over 600 genome sequences to chart the complex history of Y. pestis, the bacterium that causes plague. They found an unstable molecular clock and identified five populations throughout history, including ancient pandemic lineages.
A new study found a direct link between hypospadias and epigenetic alterations, suggesting an environmental cause. Researchers identified a potential biomarker for early detection and better clinical management of the condition.
Researchers have documented cases of Japanese macaques hunting and eating fish in the Kamikochi region of Japan, suggesting an evolutionary adaptation to harsh winter conditions. The behavior appears to be an extension of existing feeding habits on vegetation and aquatic plants, with potential implications for future generations.
A study found that 'harmless' Listeria innocua strains are developing resistance to temperature, pH, dehydration and other stresses, as well as hypervirulence similar to pathogenic L. monocytogenes. The strains were collected from raw, dried and processed meats at commercial food processing facilities in South Africa.
Researchers from Trinity College Dublin analyzed ancient DNA from two men with multiple osteochondromas, a rare genetic disease, and identified new mutations in the EXT1 gene. This study is the first to discover a new disease mutation in ancient genomic data.
Researchers at Hokkaido University discovered a novel sex-determination mechanism in the Amami spiny rat, a species lacking the Y chromosome and Sry gene. The mechanism involves the upregulation of Sox9 gene on chromosome 3, induced by a new regulatory element similar to Enh14.
Researchers have identified genetic variants associated with natural resistance to SARS-CoV-2, including a gene linked to mucin production. These findings may help develop vaccines and treatments for viral diseases by understanding the mechanisms underlying immune responses.
Researchers identified specific monkeypox mutations that contribute to its continued infectiousness. The virus is accumulating mutations where drugs and antibodies from vaccines are supposed to bind, making it smarter and more infectious.
Researchers at Rice University have developed a procedure to quantify unintended changes that accompany on-target CRISPR-Cas9 gene editing, potentially threatening the efficacy and safety of therapies. The new method uses single-molecule sequencing with unique molecular identifiers to detect large deletions, insertions, and chromosomal...
Researchers have developed a new DNA nanotechnology-driven method called Light-Seq that enables the analysis of gene expression patterns in hard-to-access cells within intact tissues. This approach overcomes limitations of existing spatial transcriptomics methods, allowing for deeper understanding of disease mechanisms and biology.
The use of Frictionless Data enhances both machine readability and human engagement with scientific outputs, turning articles into dynamic entities. Interactive figures enable readers to directly interact with data points, making the publication process more efficient and reproducible.
Researchers developed a tool that encodes patient data as DNA sequences to link health databases accurately. The platform uses BLAST and machine learning algorithms to integrate data from multiple administrative databases, overcoming typographical errors and inconsistencies.
Researchers discovered a pattern of DNA mutations that links bladder cancer to tobacco smoking using a powerful new machine learning tool. The tool identified four mutational signatures, including one tied to tobacco smoking, which could lead to more customized treatments for patients with specific cancers.
Researchers at Kyoto University have developed a new method to detect intraspecies genomic diversity, or microdiversity, of uncultivated bacteria. This approach allows for a more comprehensive understanding of microbial ecology and evolution, as previously overlooked variations are now being studied.
A new study found that 'gaps' within DNA protein and sequence alignments can provide valuable information about nucleotide and amino acid substitutions. The finding is particularly relevant for studying distantly related species.
Scientists analyzed DNA sequence data from nearly 71,000 people worldwide and identified mutations in ACE2 and TMPRSS2 genes that affect protein expression, influencing COVID-19 susceptibility and severity. The study suggests a potential new diagnostic method based on host cell variation rather than the evolving virus.
MU researchers have identified specific mutations in the Omicron variant's spike protein that help it evade existing antibodies from vaccines or previous COVID-19 infections. These findings can inform developers of COVID-19 treatments and vaccines, which may need to target different parts of the virus to produce effective outcomes.
The Emu project effectively identifies bacterial species by leveraging long DNA sequences spanning the entire length of the gene under study. This approach facilitates the analysis of key genes in microbiome researchers' efforts to sort out harmful and helpful bacteria.
Researchers found that different lineages of Cryptosporidium parvum are increasingly exchanging their DNA, which helps the parasite evolve faster and potentially result in more virulent strains. The study suggests that globalization and close contact with animals increase the rate of genetic exchange.
A new study using UK Biobank analyzed population genetics across Europe, grouping individuals by their shared genome segments. The research provides insights into historical patterns of population size and genetic isolation in European regions.
A new genetic study published in Nature Genetics found that roughly one in five invasive breast cancers following ductal carcinoma in situ (DCIS) are genetically unrelated to the original DCIS. The findings provide a deeper understanding of DCIS biology and suggest that DCIS should be considered a risk factor for the development of inv...
A study by Kobe University researchers has illuminated the characteristics of Myeloid immune cells in coronary plaque, a major contributor to acute coronary syndrome. The findings suggest that macrophages and monocytes accumulate in the plaques of patients with acute coronary syndrome, leading to increased inflammation.
Researchers developed a digital subtraction technique to identify viral DNA in tumor samples, achieving comparable results to standard clinical methods. The study discovered novel associations between specific tumors and viruses, warranting further investigation.
Researchers fill in gaps in Human Reference Genome, discovering repetitive sections are a major source of human variation and genetic diversity. The Telomere-2-Telomere project reveals complex architectural features with significant consequences for understanding human evolution and biological function.
Researchers developed a computational approach called CellTrek to combine parallel gene-expression profiling methods, creating spatial maps at single-cell resolution. The tool provides detailed information on individual cell types' location within tissues, enabling unique biological insights.
Researchers have developed a rapid and affordable test to identify specific genetic mutations in cancer cells using SuperSelective PCR primers. This assay can detect rare mutations, enabling targeted therapy and monitoring minimal residual disease. The study demonstrates the potential of this approach for personalized cancer treatment.