Articles tagged with Dna Methylation
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Researchers found epigenetic changes in saliva linked to childhood trauma and autism spectrum disorder, suggesting saliva as a potential biomarker. The study aimed to identify early markers of abuse-related deaths and ASD diagnosis, providing insights into the impact of early life experiences on health outcomes.
Endocrine-disrupting chemicals like DES can cause developmental effects in mouse seminal vesicles, affecting gene expression and DNA methylation. The study also reveals that estrogen receptor alpha plays a key role in mediating these effects.
Researchers identified epigenetic biomarkers to predict brain tumor recurrence severity, enabling personalized treatment plans. A set of testable DNA-methylation biomarkers may help clinicians assess a patient's disease trajectory.
Research team identifies X-linked genes with significant differences in methylation patterns between boys and girls, shedding light on gender-based disparities in respiratory disorders. The study's findings hold promise for personalized diagnostic and therapeutic approaches.
Salk scientists discover that maternal behavior changes brain cells in mice by altering L1 gene copy number and methylation. This correlation suggests a unique role for the jumping gene L1 in shaping brain development.
Researchers at Emory University uncover the role of hemimethylation in looping DNA and its impact on gene expression. They found that hemimethlyation is deliberately maintained and passed down through cell generations.
Research found that African American mothers' parenting stress is associated with epigenetic differences in DNA methylation, particularly in genes related to stress signaling. This discovery has implications for understanding health disparities among African American women and their children.
Research by Tokyo Medical and Dental University reveals that early-life Fgf21 gene demethylation reduces diet-induced obesity in adulthood. The study, published in Nature Communications, demonstrates the persistence of this epigenetic change into adulthood and its potential role in metabolic disease prevention.
Researchers at the University of Georgia have developed a new technique called epimutagenesis that allows them to selectively activate silenced genes in plants, resulting in increased resistance to drought and disease. This method has the potential to create crop varieties with improved yield and adaptability.
Scientists at Whitehead Institute have developed a modified CRISPR/Cas9 system to remove methylation tags from the FMR1 gene, restoring its expression and rescuing neurons from fragile X syndrome. This approach may prove useful for other diseases caused by abnormal methylation.
Researchers at UC Riverside have solved the crystal structure of an enzyme that plays a key role in DNA methylation, a process linked to various diseases including cancer. The breakthrough provides important information for understanding de novo DNA methylation and its implications for gene expression and cell differentiation.
A study published in Science Advances found that prenatal famine exposure leads to changes in DNA methylation, which can influence adult body mass index and triglycerides levels. The researchers discovered that these epigenetic changes are similar to those seen in the general population.
A new DNA marker discovered by University College London researchers can detect fatal breast cancer up to a year before symptoms appear. The EFC#93 DNA methylation marker in blood serum correctly identified 43% of women who went on to be diagnosed with fatal breast cancer within three to six months.
Researchers at UCSF have developed a test that can predict how patients with juvenile myelomonocytic leukemia will respond to treatment, potentially identifying those who are likely to recover spontaneously. The test uses epigenetic annotations of the genome and has been validated in an additional group of patients treated in Germany.
A recent study by the John Innes Centre team has discovered an undiscovered reprogramming mechanism in plant germ cells, allowing them to maintain fitness over multiple generations. This finding sheds light on the importance of DNA methylation reprogramming in plants and its potential applications for crop improvement.
A new method developed by Mount Sinai and Sema4 researchers accurately identifies individual microbial species and strains in communities, providing a more comprehensive approach to microbiome analysis. The technique uses DNA methylation patterns as natural barcodes to discriminate between closely related species.
Researchers uncover DNA methylation marks that silence genes in corn, impacting trait expression and breeding. The study improves understanding of non-Mendelian inheritance mechanisms, shedding light on the disappearance of desired traits in crops.
Researchers at the University of Freiburg discover that DNA folding reorganization is a key switch for defining cell types during cardiomyocyte differentiation. The study reveals that spatial genome organization determines cellular identity and provides insights into future reprogramming strategies.
A recent study published in Cell Stem Cell has discovered a mechanism to prevent genetic chaos caused by transposons in early human development. The research found that endosiRNAs, a type of small interfering RNA, play a crucial role in regulating transposon activity during epigenetic reprogramming.
Researchers at the University of Zurich have discovered a crucial mechanism for epigenetic gene regulation, involving the DNMT3A enzyme. This finding provides new insights into the development of aggressive types of leukemia and may lead to more effective treatments.
Geneticists at Emory University School of Medicine have discovered a mysterious DNA modification in animals, specifically adenine methylation, which increases four-fold under conditions of stress in the brain. This epigenetic modification may play a role in neuropsychiatric disorders.
A new study from UMass Amherst suggests that phthalate levels in expectant fathers can impact couples' reproductive success through epigenetic modifications of sperm DNA. The researchers found associations between certain phthalates and changes in sperm DNA methylation, which may influence early-life development.
Researchers found that urbanization led to significant epigenetic differences in Darwin's finches, which may be a heritable component of adaptation. The study suggests that diet and methylation patterns played a key role in the rapid adaptation of these species to changing environments.
Scientists have identified new subtypes of brain cells in mice and humans using DNA analysis, revealing a complex diversity of neurons. This breakthrough opens the door to understanding how many types of neurons exist, which could lead to improved treatments for brain-related diseases.
Researchers at Harvard Medical School have identified a mechanism that regulates the imprinting of multiple genes, including those critical to placental growth during early embryonic development in mice. The study reveals that histone modification is necessary for imprinting certain genes, while DNA methylation plays no role.
Researchers found that DNA methylation analysis can predict cancer versus normal tissue with over 95% accuracy, identifying metastases with 97% correctness. This method could improve outcomes by providing more accurate diagnoses, particularly for indolent or aggressive tumors.
Researchers have identified key genes that control epigenetic modifications in wild and domesticated cotton, opening the door to new breeding techniques. By targeting these genes, breeders may be able to create crops with improved traits such as increased fiber yield and drought resistance.
The study analyzed umbilical cord tissue from 669 babies and found a link between higher DNA methylation in the CDKN2A gene and lower bone mass at four and six years. This suggests that epigenetic modifications early in life may play a role in determining skeletal growth.
Researchers have developed a novel technology to correct disease-causing aberrations in the chemical tags on DNA that affect gene expression. The tool uses DNA methylation editing to model mutations associated with colon cancer and restore proper methylation patterns in stem cells derived from patients with Angelman syndrome.
Research finds lower DNA methylation levels at birth are associated with increased fat mass and a higher risk of obesity in children, with potential implications for prevention and treatment strategies.
A new study by University of Illinois researchers describes a method to detect and map tiny additions to DNA called methylations, which can be a warning sign of cancer. The method uses nanopores with an electrical current running through an atomically thin sheet of material.
Researchers at Babraham Institute and European Bioinformatics Institute identified a mouse epigenetic ageing clock, which shows age-related changes in DNA methylation. The accuracy of the mouse clock is surprisingly similar to humans, with lifestyle interventions affecting ticking rate.
A laboratory study found that a diet rich in folic acid and vitamins can impair the cognitive skills of offspring mice. The findings suggest that epigenetic changes in the paternal genome can be transferred to the next generation, potentially affecting human health.
A study on patients with Cushing's Syndrome found that cortisol excess was associated with reduced DNA methylation, leading to persistent psychiatric problems. The researchers hope that targeting DNA methylation may lead to new treatment possibilities for stress-related conditions.
Researchers have found a gene mutation that may contribute to unexplained female infertility, affecting DNA methylation and embryonic development. Women carrying the mutation are healthy but may experience recurrent pregnancy loss or developmental disabilities.
Researchers analyzed DNA methylation levels in 1,900 participants to identify 58 CpGs linked to mortality. These epigenetic marks show stronger correlations with survival than previously studied genetic alterations.
Researchers have developed a new computational software to determine the presence of epigenetic add-ons linked to cancer and other health conditions. The software uses nanopore sequencing technology to detect cytosine methylation in DNA, which can affect gene expression and play a role in diseases such as cancer.
A new study reveals that obesity reprograms muscle stem cells through DNA methylation changes, impairing insulin sensitivity and metabolism in fully developed muscle cells. The research, conducted by doctoral student Cajsa Davegårdh at Lund University, found that pro-inflammatory genes like IL-32 play a crucial role in this process.
A large study from Boston Children's Hospital found that epigenetic modifications to DNA, specifically DNA methylation, are linked to an increased risk of obesity-related health problems. The researchers identified 83 sites in the genome where methylation changes were associated with differences in energy balance and lipid metabolism.
Honeybee memories may hold clues to understanding human long-term memory formation and combating degenerative brain diseases. DNA methylation plays a crucial role in regulating memory specificity, with implications for treating conditions like Alzheimer's and dementia.
A team of researchers discovered that maintaining DNA methylation is closely linked to hybrid vigor in Arabidopsis thaliana, a model plant for studying hybrid plant superiority. The study's findings suggest that epigenetic regulation plays a crucial role in hybrid vigor.
Researchers developed a method estimating developmental maturity via DNA methylation patterns, which can help assess preterm newborns' care and estimate conception time. The study found gestational age accurately estimated between 24-44 weeks, with correlations to birthweight and developmental maturity.
Scientists have identified a mechanism that alters neural excitability, a key factor in diseases such as epilepsy, depression, and drug addiction. The discovery provides insight into these conditions and may offer a potential therapeutic target.
UAB researchers have discovered that levodopa induces widespread DNA methylation changes in brain cells that contribute to the development and maintenance of levodopa-induced dyskinesia. Modulating global DNA methylation may be a novel therapeutic target to prevent or reverse this condition.
Research suggests that extra-coding RNAs play a critical role in regulating DNA methylation patterns in the adult brain, particularly in memory formation. By interacting with DNA methyltransferase enzymes, ecRNAs control the addition or removal of methyl groups at precise spots on chromosomal DNA.
A new tool for precision medicine has been developed through epigenetic analysis, which addresses key limitations of genetic testing. This technology provides unprecedented insights into disease mechanisms and can help identify suitable treatments for individual patients.
Researchers found that trauma-related behavioral alterations are reversible in mice and that epigenetic dysregulation of the glucocorticoid receptor gene can be corrected by low-stress environments. This finding has implications for the transmission of characteristics caused by the environment, such as metabolic disorders.
A study of 454 healthy teenagers found that low vitamin D levels correlated with lower DNA methylation rates, increasing the risk of cancer and other diseases. The researchers discovered a dose-response relationship between vitamin D supplementation and increased DNA methylation activity.
New research reveals that stressful events result in DNA de-methylation, leading to the suppression of gene expression and facilitating adaptive behavioral responses. The study also found a link between SAM, a compound produced by the liver, and stress-related responses in the brain.
Researchers at Lund University developed a new method to predict type 2 diabetes risk by detecting epigenetic changes in specific genes through a simple blood test. The study found that higher DNA methylation levels were associated with increased insulin secretion and lower disease risk.
A new method detects multiple diseases via methylation patterns of circulating DNA from dying cells, identifying cell death in specific tissues and offering a minimally-invasive window for monitoring and diagnosis. The approach has vast possibilities for diagnostic medicine and can be adapted to identify cfDNA derived from any cell type.
A study by University of Utah researcher Elisabeth Conradt found that a mother's sensitivity can buffer her infant from the negative impacts of maternal depression. Infants whose mothers were sensitive had lower cortisol levels and less DNA methylation, indicating reduced exposure to maternal stress hormones.
Researchers have discovered a striking genomic signature shared by colon, lung, breast, stomach and endometrial cancers, which may be used to diagnose the disease at early stages. The methylation signature could lead to the development of a non-invasive blood test for cancer detection.
Researchers identified new glioma subtypes by analyzing DNA methylation profiles in 1,122 adult glioma samples. These subtypes can help stratify patients more accurately and improve treatment protocols, with some subgroups displaying similarities to pilocytic astrocytomas and better patient survival.
Researchers have discovered that epigenetic information in the egg plays a crucial role in shaping the development of the placenta during pregnancy. The study found that DNA methylation marks from the egg are essential for correct placental development, particularly in regulating cell adhesion and migration.
A new study from Rockefeller University found no overall differences in DNA methylation between worker and queen ants, challenging the popular explanation for their social roles. The research suggests that methylation may contribute to stable expression of household genes, but further studies are needed to confirm this.
Scientists have developed a new protocol to study DNA methylation and gene expression in single cells, revealing hundreds of individual associations between epigenetic regions and gene expression. This breakthrough provides insights into how pluripotency is maintained and cell differentiation is regulated.
Researchers discovered epigenetic modifications in mouse brains that influence long-term memory, suggesting a potential code for memory content and new therapeutic targets. The study also found these modifications occur in non-neuronal cells, expanding our understanding of neuroplasticity regulation.
The new Illumina MethylationEPIC BeadChip array provides a powerful tool for elucidating the role of the human epigenome in complex diseases. With its significantly increased coverage in gene regulatory regions, it enables DNA methylation analysis at an unprecedented scale.
Researchers have mapped the wheat epigenome, identifying patterns of DNA methylation that regulate gene activity. This discovery could lead to improved crop breeding technologies and a better understanding of genetic variation in wheat.