Articles tagged with Dna
A new type of DNA damage, glutathionylated DNA adducts, accumulates at high levels in mitochondrial DNA, affecting energy production and stress response. The discovery sheds light on how cells sense and respond to stress, with potential implications for diseases like cancer and diabetes.
Scientists have discovered a protein called SCEP3 that ensures even chromosome segregation in plants, preventing infertility and genetic diseases. This finding has implications for plant breeding and understanding human fertility, with the equivalent gene SIX6OS1 potentially playing a role in promoting correct chromosome segregation.
A study by The Hospital for Sick Children reveals a previously overlooked layer of genetic variation in short tandem repeats (STRs) that can influence gene regulation and shape disease risk. This discovery may inform future research and precision therapeutic development in support of Precision Child Health.
A study led by SickKids scientists discovered a previously overlooked layer of genetic variation that could help explain individual differences in disease risk and treatment response. The researchers found that subtle changes in short tandem repeats can impact gene function, revealing new insights into neurodevelopmental conditions.
Researchers developed a new DNA analysis technique to study old genetic samples, shedding light on disease evolution and changes in biology over time. The approach has potential for unlocking the root causes underlying shifting landscapes of modern diseases.
Researchers have created a method for simultaneous imaging of DNA and RNA in living cells using harmless infrared light, allowing for high-precision detection of all stages of cell death. This breakthrough enables the early detection of cellular damage that leads to aging or death.
Researchers at Tohoku University shared key findings from their 10-year genome cohort study, highlighting effective techniques for analyzing and managing genomic data. The study's unique approaches to whole-genome sequencing, including qMiSeq and iDeal protocols, have been widely adopted by institutions worldwide.
A review highlights transposable elements' influence on gene expression, genome stability, and disease development. TEs are recognized as regulators of gene regulation and disease, offering new avenues for diagnosis and therapy.
Researchers at OIST develop a new method harnessing 'jumping genes' to recreate the termite tree of life, providing a template for solving ancient evolutionary mysteries. The study achieves similar accuracy to trees built from thousands of protein marker sequence alignments.
A new method enables scientists to read the genomes of individual cells and viral particles in the environment more quickly and efficiently. The approach, known as environmental microcompartment genomics, increases throughput by an order of magnitude and provides unique insights into the diverse world of marine viruses.
Scientists have created a micro-algal platform that allows for automated and fast testing of chloroplast genetic modifications, opening up plant chloroplasts to high-throughput applications. This platform enables researchers to fine-tune genetic circuits and identify which modifications have real potential.
Researchers have uncovered a novel mechanism linking lactate metabolism to muscle Growth differentiation factor 15 (GDF15) release during mitochondrial stress, providing a potential therapeutic target for mitochondrial myopathy. Elevated lactate production and histone lactylation activate GDF15 gene expression.
Researchers developed a computational tool to identify genetic vulnerabilities in memory-making brain cells linked to Alzheimer's. The 'seismic' algorithm integrates genetic data with single-cell RNA sequencing, revealing a detailed picture of affected cell types and their genetic programs.
Colorectal cancer screening modities shifted among privately insured individuals after COVID-19, with decreased colonoscopy and fecal tests, increased stool DNA tests. Differences found by sex, socioeconomic status, and metropolitan area residence.
The Global Pathogen Analysis Platform (GPAP) will enable low- and middle-income countries to conduct research and surveillance of infectious diseases independently. The platform aims to prevent disease outbreaks from developing into pandemics by detecting genetic sequences of potential pathogens.
Researchers created microscopic DNA 'flowers' that can change shape and behavior in response to their surroundings. These tiny robots, made from special crystals formed by combining DNA and inorganic materials, can perform tasks on their own, from delivering medicine to cleaning up pollution.
Researchers have unveiled the molecular mechanisms underlying L1's retrotransposition and integration into genomic DNA. The study reveals that ORF2p interacts primarily with the DNA backbone through electrostatic forces, enabling site-specific cleavage during retrotransposition.
Researchers used a new high-resolution mapping technique to find small 3D loops connecting regulatory elements and genes that persist during cell division. These loops strengthen when chromosomes become more compact, potentially helping cells 'remember' interactions from one cell cycle to the next.
A study published in Science Advances has discovered that the RAD21L protein plays a crucial role in regulating DNA structure and gene expression in sperm precursor cells. The absence of this protein leads to defects in chromosome pairing, genetic recombination, and spermatogenesis, resulting in male infertility.
Researchers have developed a non-invasive blood test that can detect Amyotrophic Lateral Sclerosis (ALS) earlier and with higher accuracy by measuring cell-free DNA. The test distinguishes between ALS patients and healthy individuals, as well as those with other neurological conditions.
A genetic mechanism called diversity-generating retroelements accelerates evolution in gut bacteria, allowing them to adapt to new environments. This mechanism is more common in the gut microbiome than any other environment on Earth and enables microbes to change and adapt rapidly.
Scientists have developed a DNA nanospring to measure the force of protein motors like KIF1A, which can lead to improved diagnosis and treatment of diseases. The technique uses fluorescent imaging to detect the stretching of the DNA nanospring, allowing researchers to accurately measure the motor's power.
A new study has created the largest genetic map of human metabolism, revealing key genes controlling metabolites and their impact on health. The research highlights similarities in genetic control across ancestries and sexes, offering new avenues for developing medicines to prevent heart diseases.
The CityUHK team is developing two core therapeutic medicines using state-of-the-art DNA surgery technology to treat liver and cardiovascular genetic diseases. Their approach offers a durable and long-lasting solution, eliminating the need for repeated medications.
Researchers at Stowers Institute for Medical Research have identified the precise location where human chromosomes break and recombine to form Robertsonian chromosomes. The study reveals that repetitive DNA sequences play a central role in genome organization and evolution, explaining how these rearrangements form and remain stable.
Researchers have developed new eDNA tools to quantify kelp-derived biomass in sediments below commercial kelp farms. The study confirms that kelp aquaculture has little impact on the seafloor community and provides evidence for using eDNA to examine 'blue carbon' accounting efforts.
The Alliance for Clinical Trials in Oncology will host a public webinar showcasing key findings from the 2025 ASCO Annual Meeting. Researchers will discuss latest information on colorectal, squamous cell, and renal cell cancers.
Genomic imprinting discovered by Davor Solter and Azim Surani reveals maternal chromosomes contribute essential information missing in paternal chromosomes. This phenomenon, coined genomic imprinting, involves tiny methyl groups attached to DNA's four bases regulating fetal growth and development.
A study published in Science Advances reveals a deeply complex evolutionary history of mastodons, with multiple migrations across North America driven by climate change. Genetic analyses confirm the presence of distinct genetic groups and lineages, including a mysterious Mexican lineage.
Research by University of Pittsburgh scientists discovered that damaging telomeres can lead to dysfunctional T cell function. To combat this, they developed a targeted antioxidant approach that rescued T cell function, opening the door for novel therapies in cancer immunotherapies.
Researchers found genetic adaptations in response to micronutrient shortages and surpluses, particularly in regions with iodine-poor soils. The study provides insights into the impact of micronutrient availability on human evolution, highlighting potential vulnerabilities to deficiencies as climate change affects soil nutrient levels.
The Gabriella Miller Kids First Pediatric Research Program has released its 36th study, introducing significant new data updates to two existing studies. These advances aim to uncover the genetic foundations of childhood cancers and congenital conditions. With over 110,000 data files available, researchers can explore publicly accessib...
A study found that nearly half of spontaneous DNA damage in human oocytes localizes to telomeres and accumulates with donor age. Telomeric DNA damage compromises oocyte quality, leading to chromosomal instability and reduced maturation rates.
A team of scientists has identified rogue DNA rings as early drivers of glioblastoma growth, suggesting a window of opportunity for earlier detection and treatment. The study suggests that targeting these DNA rings could lead to more effective treatments.
The Earth BioGenome Project aims to create a digital library of DNA sequences to preserve and protect life on Earth. The project has revealed a refined strategy to scale up the sequencing of 150,000 species, accelerating biodiversity research and global conservation.
Researchers used ancient DNA and computer simulations to determine that migration of farming groups was the dominant factor in the expansion of farming, while cultural adoption by hunter-gatherers played a minimal role. The study found that the adoption of new ideas and practices did not significantly accelerate the spread of agriculture.
Researchers have developed 'molecular scissors' that can precisely and permanently disable the hepatitis B virus's hidden genetic material. The treatment has shown promising results in laboratory tests and HBV-infected mice, with a 99% reduction in circulating viral DNA. This innovation represents a significant step towards a functiona...
Researchers at Lund University found that specific sequences within non-coding genome help shape the developing human brain. Disrupting these sequences leads to abnormalities in gene activity and brain organoid growth, highlighting their importance in regulating genes and development.
Researchers at the University of Waterloo have developed a novel method using modified M13 bacteria to deliver targeted gene therapies for genetic disorders. This approach shows promise as a cost-effective alternative to current methods, which can be expensive and trigger toxic side effects.
A new, extinct shelduck species discovered on the Rēkohu Chatham Islands evolved shorter wings and longer leg bones due to its environment. The study found that flying was not energetically efficient in this context, leading to the adoption of more robust leg bones for support.
Newly developed DNA nanostructures form flexible, fluid, and stimuli-responsive condensates without chemical cross-linking. These findings pave the way for adaptive soft materials with potential applications in drug delivery, artificial organelles, and bioengineering platforms.
Researchers analyzed centromeres in onion, garlic, and Welsh onion using CENH3-targeted antibody to map centromere regions. They found significant variations in size and position/mobility between species, challenging the static view of centromeres.
Researchers at the University of Illinois Chicago have uncovered the detailed chemical mechanism behind preventing premature protein release. The discovery sheds light on how cells execute protein production, one of life's most essential processes, and clarifies the role of the release factor.
Researchers validated panels of antibodies targeting clinically relevant nucleic acid modifications to visualize antisense oligonucleotides in both in vitro and in vivo studies. The tools enable detection of modified nucleic acids irrespective of sequence, facilitating multiple clinical and pre-clinical workflows.
Researchers at Cold Spring Harbor Laboratory have deciphered the first step in DNA replication, a process crucial for life. The study identifies over 100 proteins essential for this mechanism, which enables cells to duplicate genetic material efficiently.
Scientists have found that nucleosomes act as gatekeepers for p53's molecular partners, controlling its access to the genetic code. This discovery reveals a new layer of regulation over p53's activity and opens possibilities for developing cancer therapies that restore or control p53 function.
A study reveals that epigenetic changes associated with aging in adults do not occur before sexual maturity. In fact, rDNA copy numbers and methylation increase during childhood and adolescence, suggesting cells actively maintain a youthful state to ensure efficient protein production.
By reprogramming chromatin to prevent cancer cells from adapting to evade treatment, researchers have doubled chemotherapy effectiveness in animal experiments. This approach restores cellular memory, making existing drugs more effective against cancer.
Researchers developed a chemical probe that binds to damaged mitochondrial DNA, blocking enzymatic processes that lead to its degradation. This approach lessens mtDNA loss, preserving energy production in vulnerable tissues. The new molecule successfully reduced inflammation and maintained functional DNA despite chemical tagging.
Scientists develop a new approach to construct moiré superlattices using DNA nanotechnology, enabling precise control over twist angles and lattice symmetries. The resulting structures have potential applications in nanophotonics, spintronics, and materials science.
Researchers at Hebrew University developed a precise method to estimate chronological age from DNA using deep learning networks analyzing DNA methylation patterns. The method achieves age predictions with a median error of 1.36 years in individuals under 50, unaffected by smoking, BMI, and sex.
Researchers discovered how the genome uses competition between proteins to prevent rogue retrotransposon LINE1 from causing damage. The team found that a modified protein NRBP2 marks and disposes of another protein NRBP1, which is no longer functional due to mutations.
A new genomic study reveals that population structure in the Himalayas began over 10,000 years ago, shaping human survival in one of Earth's most challenging environments. The research identifies novel genetic variants linked to adaptation in hypoxia, metabolism, immunity, and physical activity.
Researchers at Emory University have discovered that psilocybin can delay cellular aging by over 50% and extend the lifespan of human skin and lung cells. In a study involving aged mice, psilocybin was shown to increase survival by 30% and improve physical features, suggesting potential for anti-aging therapies.
A new study has mapped the history of infectious diseases across millennia, offering insights into how human-animal interactions transformed our health landscape. The research analyzed ancient DNA from over 1,300 prehistoric individuals, revealing that zoonotic diseases became more widespread around 5,000 years ago.
A new study by researchers from Rice University has uncovered a mechanism by which the identity of nucleotides following a given nucleotide in DNA affects transcription accuracy. The discovery offers insight into hidden factors that influence transcription accuracy and may improve synthetic and therapeutic RNA.
A new approach uses DNA to fabricate targeted 3D nanoscale structures via self-assembly, allowing for complex designs and parallel assembly. The method enables significant time- and cost-savings compared to traditional top-down strategies.
A study by a trans-European research team reveals how DNA condensation during the cell cycle is regulated by a unique molecular switch. When cell division begins, the key enzyme CDK1 phosphorylates microcephalin and M18BP1, allowing condensin II to pack the DNA into sausage-shaped chromosomes.
Researchers at the University of Sydney developed a biological 'artificial intelligence' system called PROTEUS, which can accelerate cycles of evolution and natural selection to create molecules with new functions in weeks. The system has potential applications in finding new medicines and improving gene editing technology like CRISPR.
MIT researchers have designed cheap, disposable electrochemical sensors that can detect multiple diseases using DNA-coated electrodes. The sensors were stabilized with a polymer coating, allowing them to be stored for up to two months, enabling potential use in low-resource regions and at home.