Articles tagged with Dna
As women age, more genes on their X chromosomes escape silencing, potentially influencing disease. This epigenetic change may explain sex-based differences in age-related diseases.
A Geisinger study finds that Y chromosome genes increase height by 3.1 centimeters in individuals with sex chromosome aneuploidy, explaining approximately 23% of the average height difference between men and women.
Scientists have created a new way to store and decode data using synthetic molecules, which can be used to unlock computers with encoded passwords. The method involves designing molecules that contain electrochemical information, allowing messages to be decoded using electrical signals.
A new AI model can predict protein location in human cells with high accuracy, enabling faster diagnosis of diseases like Alzheimer's and cancer. By combining protein sequence analysis with computer vision, the model can pinpoint proteins' locations at the single-cell level.
Researchers at Northwestern University discovered that DNA's behavior changes in a crowded environment, affecting the amount of stress required for strand separation. The study used microscopic magnetic tweezers to investigate interactions between DNA and various molecules.
Researchers have developed a model called Difface that can reconstruct 3D facial images from DNA data, improving forensic investigations. The method demonstrates excellent performance in aligning and reconstructing facial images from paired DNA differences.
Researchers found that a chemical modification on messenger RNAs triggers disposal while being read by the ribosome, but during cell stress, this process is halted, allowing stress-response proteins to accumulate and help cells recover. The study may have implications for cancer therapies targeting m6A modifications.
A centralized and accessible database aims to integrate molecular simulation data, ensuring findability, accessibility, interoperability, and reusability. This will amplify the impact of these data and avoid duplication.
A study led by Helmholtz Munich found that epigenetic programs play a crucial role in DNA self-organization in early embryos. The researchers discovered multiple parallel regulatory pathways controlling nuclear organization, which can self-correct errors even after the first cell division.
Researchers developed fluorescent polyionic nanoclays that can be customized for medical imaging, sensor technology, and environmental protection. These tiny clay-based materials exhibit high brightness and versatility, enabling precise tuning of optical properties.
Researchers at UC San Diego found that HPV DNA hybridizes with human DNA genes in oropharyngeal cancer cells, forming ecDNA that promotes tumor growth. This study suggests that selectively targeting ecDNA-disrupting therapeutics could slow tumor growth while leaving normal cells intact.
Researchers found that pancreatic cancer cells gain a survival edge by carrying copies of critical cancer genes on circular pieces of DNA outside chromosomes. The discovery highlights the importance of targeting extrachromosomal DNA in treating the disease.
Scientists discovered a protective variant of the HAQ-STING gene that prevents COPA Syndrome. This finding opens the door to a new gene therapy for the condition, which currently has no cure.
Biologists have identified a new type of regulation that influences the expression of about half of all human genes by targeting specific introns. This discovery adds complexity to the process of gene expression and suggests potential therapeutic targets for diseases such as blood cancers and spinal muscular atrophy.
The Predictive Phenomics Initiative and the Exposome Moonshot aim to understand the impact of molecular signaling on organisms. Environmental factors, such as diet and lifestyle, can significantly affect biological processes, influencing traits like height, disease risk, and even eye color.
A study published in Pediatric Investigation found that microbial cell-free DNA testing predicted infectious organisms consistent with traditional culturing tests in 26.9% of pediatric patients, but its utility was variable due to factors like antibiotic exposure and contamination.
A University of Oklahoma research team has developed a breakthrough method of adding a single nitrogen atom to bioactive molecules, transforming them into new pharmacophores. This process, called skeletal editing, could open up uncharted regions of chemical space in drug discovery, making existing drugs cheaper and more accessible.
Researchers at University of California San Diego School of Medicine have discovered that fatty liver disease can lead to liver cancer through DNA damage in liver cells. The study suggests that developing new drugs to prevent or reverse DNA damage could be a promising approach for preventing liver cancer.
Researchers found a specific magnesium concentration range where DNA wraps around polyphosphate-magnesium ion condensates, forming flexible structures. This discovery could lead to new methods for tuning cellular responses and has potential applications in translational medicine.
Researchers identified a vulnerability in the bacterial machinery driving antibiotic resistance adaptation, which could lead to new counter-strategies. The study found that a genetic toolbox called integron system plays a crucial role in adapting resistance genes.
Researchers have developed a fast and rewritable DNA computing method that uses DNA origami registers to process digital files. This method has the potential to be more powerful than current silicon-based machines.
Researchers at the University of Ottawa have developed a nanoparticle strategy to deliver both mRNA and siRNA, enhancing and interfering with multiple gene and protein expressions. This approach holds significant promise for treating major diseases like cancer and cardiovascular diseases.
Researchers used ancient DNA to uncover novel signatures of adaptation in early Europeans, tracing genetic changes in response to lifestyle shifts. The study identified 14 regions of the genome that underwent significant natural selection, including traits related to vitamin D production and dairy digestion.
A groundbreaking metagenomic sequencing test has proven effective in rapidly diagnosing almost any kind of pathogen, including viruses, bacteria, fungus or parasite. The test analyzes all nucleic acids present in a sample, replacing multiple tests with a single one and speeding up diagnosis.
A team of biologists at UT Arlington has discovered a new species of gecko, Pseudogonatodes fuscofortunatus, with distinct skeletal features and genetic data. The discovery highlights the unique characteristics of this tiny lizard, found in the Paria Peninsula of Venezuela.
Scientists have engineered synthetic genes that can assemble into complex biomaterials like nanoscale tubes, using a modular approach similar to building furniture. This breakthrough enables the creation of distinct materials that can spontaneously develop from a finite set of parts by rewiring the timing of molecular instructions.
Researchers used DNA barcoding to identify 31,800 insect samples from 37 habitats in Sweden, discovering 175 new species of scuttle flies. The study provides insights into the diversity and distribution of these species, which are influenced by climate factors and habitat changes.
Researchers at Colorado State University have identified an alternate method to study changes during the DNA replication process in lab settings using genetically modified yeast. This new approach provides a less toxic and quickly reversible alternative to hydroxyurea, allowing for better insight into cell cycle arrest mechanisms.
A team of scientists developed an advanced computational technique to predict gene architecture through nucleosome position, combining experimental approaches with machine learning techniques. The study demonstrates that nucleosomal architecture is greatly influenced by DNA sequence information and physical signals.
Researchers have identified a new epigenetic mark, 5-formylcytosine, which plays a crucial role in activating genes during early embryonic development. This discovery sheds light on the regulation of gene expression in vertebrates and has implications for our understanding of human development and disease.
A UCL-led research team has crystallized the first alternative DNA structure from the insulin gene, revealing its shape and structure. The discovery suggests that different variants in the insulin gene can form different DNA structures, which could affect insulin function and potentially play a role in diabetes development.
A new approach developed by researchers could streamline the forensic analysis pipeline and reduce delays in processing DNA evidence. The technique, using differential digestion with digital microfluidics, simplifies the process of isolating an assailant's DNA from a single sample, reducing manual steps from 13 to five.
Researchers at Osaka Metropolitan University found compounds in nucleic acids from salmon DNA and torula yeast RNA inhibit cancer cell growth. These compounds may prevent cancer by stopping cell replication.
Scientists have discovered over 50,000 unusual DNA structures called i-motifs in the human genome, which are concentrated in key functional areas and may play a role in regulating gene activity. This finding offers new possibilities for diagnostic and therapeutic approaches to diseases such as cancer.
Silent gene mutations may have significant consequences beyond their own gene, according to a study published in the Proceedings of the National Academy of Sciences. Researchers found that synonymous mutations in one gene can increase the production of a neighboring gene by recruiting RNA polymerase to cryptic transcription sites.
Researchers from Sweden and Spain have identified an endogamous community in northern Iberia that remained relatively isolated despite centuries of turbulent regional history. The study also revealed the presence of the variola virus, which can offer a new explanation on how smallpox entered Iberia.
Researchers propose a novel approach using CRISPR to stabilize DNA G4s at specific genomic locations, enabling precise investigation into biological processes and disease associations. The method leverages CRISPR-guided biotin-conjugated compounds to target specific G4s with reduced off-target effects.
A team of scientists at Gladstone Institutes has developed a new method that enables them to make precise edits in multiple locations within a cell—all at once. They created a tool using molecules called retrons to efficiently modify DNA in bacteria, yeast, and human cells.
Researchers identified nidogen-2 as a key driver of pancreatic cancer progression and metastasis. Blocking this molecule enhanced chemotherapy effectiveness and reduced spread in mouse models, suggesting a promising new treatment approach.
Researchers have discovered several rare types of helper T cells associated with immune disorders such as multiple sclerosis and rheumatoid arthritis. The study found that genetic variants in bidirectional enhancer DNA are linked to specific immune-mediated diseases, including inflammatory bowel disease.
Researchers found a correlation between protein folding and evolution in certain globular protein families, with most conserved exons corresponding to better foldons. However, the general trend did not hold for all protein families, suggesting other biological factors may influence protein folding and evolution.
Professor Helle Ulrich will investigate how a small regulatory protein called ubiquitin contributes to DNA replication and repair, and decipher how cells direct different pathways. The ERC Advanced Grant aims to gain a deeper mechanistic understanding of ubiquitin's function in preventing mutations that can cause ageing and cancer.
Telo-seq reveals dynamic mechanisms of telomeres in aging and cancer, providing new insights into their role in health and disease. The breakthrough method determines telomere length and sequence on individual chromosomes.
A noncoding gene has been identified as the deciding factor in determining sex in Argentine ants, with a specific genomic region being crucial to this process. The gene does not encode a protein but rather produces an RNA that influences sex determination.
A mysterious plasmid, pBI143, found in 90% of human intestines, could be used to identify faecal contamination and offer insights into intestinal diseases. The discovery also highlights the prevalence of 'cryptic' plasmids in human gut microbiota.
A team of researchers from Texas Heart Institute and Baylor College of Medicine have made a significant discovery about the underlying molecular cell states within transplanted pediatric hearts. They found that donor-derived tissue-resident macrophages are crucial for graft acceptance, but their loss leads to allograft failure.
Researchers have uncovered novel perspectives on domestic and wild cat evolution through the use of cutting-edge genome sequencing and assembly technologies. The study highlights distinct genetic changes that will aid in future disease studies and provide crucial information for those studying feline diseases, behavior, and conservation.
The IntelliGenes software combines conventional statistical methods with cutting-edge machine learning algorithms to produce personalized patient predictions and visualize significant biomarkers for disease prediction. Researchers applied the software to discover novel biomarkers and predict cardiovascular disease with high accuracy.
Scientists have developed a method to study bobcats using only their pawprints, allowing for extensive data collection and analysis of ancestral background and microbial communities. This technique has the potential to inform better management and conservation of rare or endangered species.
Researchers from National University of Singapore have synthesised a redesigned yeast chromosome XV, comprising 1.05 million base pairs. The novel technology, CRISPR/Cas9-mediated mitotic recombination with endoreduplication (CRIMiRE), speeds up the assembly process, allowing for rapid reconfiguration of the synthetic chromosome.
Researchers identified PUCH, a novel enzyme that produces small molecules called piRNAs to detect and prevent parasitic DNA from replicating in our genomes. This discovery sheds light on how our immune system works and may have implications for understanding innate immunity.
A new compartment in mammalian cells, the exclusome, has been discovered to house DNA rings that can be ejected from the nucleus. This process helps protect chromosomes from foreign DNA that could disrupt cellular function. The discovery sheds light on a potential link between the exclusome and autoimmune diseases.
Cancer cells exploit enhancer DNA to accelerate tumor growth, according to researchers at the University of Toronto. The study found that specific proteins regulate this process, suggesting potential treatments through FOXA1 or NFIB suppression.
A new CRISPR-based diagnostic tool, MPXV-CRISPR, has been developed in Australia to detect the monkeypox virus with high precision and speed. The tool can detect the virus in clinical samples in just 45 minutes, making it faster than current methods.
Researchers found that the OsMATL2 gene triggers haploid induction when inactivated, resulting in plants with half the normal chromosome number and reduced seed setting. This discovery could revolutionize rice cultivation by accelerating breeding processes.
CityU and AFCR have signed a MoU to promote cutting-edge cancer-related innovative inventions and commercialization. The partnership aims to foster the development of biomedicine and related innovation, with world-leading scholars from Harvard Medical School attending the inaugural 'Innovation Series in Biomedicine' forum.
Researchers at UC Santa Cruz have created a device that mimics biological channels to detect biomolecules indicative of human disease. The bioprotonic system uses electrical currents of protons to translate biomolecule presence into electronic signals, with potential applications for in-vitro and clinical settings.
Researchers at the University of Pennsylvania School of Engineering and Applied Science have discovered dozens of small protein sequences with antibiotic qualities in extinct organisms like Neanderthals and Denisovans. They then synthesized these molecules using artificial intelligence and tested their efficacy against pathogens.
Researchers develop a new method to assemble arrays of quantum rods onto patterned DNA scaffolds, enabling precise control over light emission and polarization. This breakthrough could enhance virtual reality devices and microLEDs with improved depth and dimensionality.
Using plasma circulating tumor DNA testing can expedite biomarker testing and time to treatment for patients with suspected advanced lung cancer. The study suggests that this approach may improve patient outcomes.