Articles tagged with Dna Methylation
Scientists have identified a DNA methylation pattern that can accurately diagnose pancreatic cancer, distinguishing it from chronic pancreatitis. The marker, which involves six specific methylation positions in the PRKCB gene, has been validated on tissue and blood samples, offering hope for improved diagnosis and treatment.
A new study introduces the concept of a 'noise barometer,' measuring biological age based on epigenetic changes. The researchers found that specific cytosines show increased variability with age, indicating a biomarker for aging and disease. This approach provides a novel perspective on aging research.
Researchers found specific epigenetic differences among Alaska Native participants who experienced intense symptoms of distress when reflecting on historic losses. Individuals with strong cultural identity reported better well-being. The study is the result of a close collaboration between scientists and members of two Alaska Native co...
A study published in Brain, Behavior, and Immunity found that inflammation-related genes play a significant role in depression. The researchers discovered correlations between immune-related genes, DNA methylation patterns, and brain structure abnormalities in patients with major depressive disorder.
A new study reveals that boys who smoke in their early teens may damage the genes of their future children, leading to increased risks of developing asthma, obesity, and low lung function. Researchers investigated epigenetic profiles of 875 people aged 7-50 and found changes associated with fathers' teenage smoking.
A team of researchers at the University of Johannesburg has made a groundbreaking discovery about how tomato plants defend themselves against the devastating ToCSV virus. By studying the molecular genetics of infected tomato varieties, they found that viral DNA methylation plays a crucial role in resistance to ToCSV.
Researchers have discovered how plants pass along chemical markers that instruct cells on using DNA codes, a process known as epigenetic inheritance. The study reveals the role of protein DDM1 in making way for enzymes that add regulatory marks to new DNA strands, preserving genetic controls across generations.
This study reveals that 5mC DNA methylation modification regulates tissue functional differentiation and important flavor substance synthesis in tea plants. The researchers found that hypomethylation of specific genes is responsible for the production of theanine in roots.
Researchers found that epigenetic silencing shuts off key genes required for sensory cell conversion. Enzyme TET can remove methyl groups to reverse gene silencing and restore hearing capability. Progenitor cells in deaf ears may already be primed to convert into sensory hearing cells.
Researchers examine translational studies on peripheral surrogates of tumor burden, including circulating tumor DNA, miRNA, and HPV-specific antibodies, to inform chemotherapy and immunotherapy strategies. These biomarkers show promise as prognostic and predictive markers of response to treatment.
A global consortium of researchers has developed a large-scale, cross-species database and universal 'clock' to estimate age in all mammalian tissues. The study found that changes in DNA methylation levels are closely associated with life span and numerous other traits across mammals.
A study published in Horticulture Research found that DNA methylation affects furanone accumulation through regulation of QUINONE OXIDOREDUCTASE in strawberries. This discovery provides new insights into the metabolic regulation network of plant volatiles and offers a basis for improving fruit flavor quality.
Researchers found that expression of transcription factors contributes to different subtypes of colorectal cancers. The degree of DNA methylation varies across tissue types, with some cancers having high and others low frequency of methylation gains. Studying transcription factor expression may help determine overall survival in patien...
Researchers have developed a new DNA sequencing method that allows for precise mapping of 5-methylcytosine, a key regulator of gene expression. This technique, called Direct Methylation Sequencing (DM-Seq), enables scientists to profile DNA using small samples and without damaging the sample, making it suitable for liquid biopsies and ...
Researchers developed a new biological age indicator, DNAmFitAge, that incorporates physical fitness parameters, showing a correlation with lower mortality risk, coronary heart disease risk reduction, and improved disease-free status in physically fit individuals.
Researchers developed a computational approach to predict diabetic kidney disease using DNA methylation markers from a blood sample. The model can use this information to assess current and future kidney function, enabling early detection and prevention of kidney disease in people with type 2 diabetes.
Researchers from the ALFA Score Consortium explore how nutrition and physical exercise can positively impact the aging process by modifying epigenetic changes. They find that healthy aging is associated with more tightly condensed chromatin, fewer histone post-translational modifications, and greater regulation by non-coding RNAs.
Researchers at Johns Hopkins Medicine found a link between chemical marks on fathers' sperm and autistic traits in their 3-year-old children. The study identified 94 regions of differential DNA methylation associated with high scores on a social responsiveness scale, indicating potential markers for autism risk.
Researchers have discovered DNA methylation markers in newborn blood that may indicate a higher risk of developing schizophrenia later in life. The study, published in Molecular Psychiatry, used statistical analysis and compared results to adult brain samples to validate findings.
A study found that biological age in humans and mice increases rapidly in response to diverse forms of stress, only to reverse after recovery. The researchers used DNA methylation clocks to measure changes in biological age, revealing transient changes in response to stressful stimuli.
Researchers discovered a mechanism that helps explain the link between reduced levels of protein PKMzeta and neurological disorders. The study used epigenetics to show that hypermethylation of the gene regulates its expression.
Researchers used DNA methylation data alongside traditional risk factors to improve prediction accuracy for type 2 diabetes. The study, involving over 14,600 participants, found that the new approach correctly predicted an extra 449 individuals, leading to potential preventative measures and reduced health burden.
A new case series study found that an 8-week methylation-supportive diet and lifestyle program reduced biological age by 4.60 years, with five of six participants exhibiting significant age reversal. The study suggests that this intervention may favorably influence biological age in both sexes.
Scientists at DKFZ developed a new detection method that analyzes epigenetic fingerprints to determine animal origin. The method uses DNA sequencing to identify chemical markers on the genome, allowing researchers to distinguish between free-range organic chicken, factory-farmed chicken, and other species.
Researchers identified over 1,000 genes with age-related methylation changes in human sperm. These changes are associated with increased offspring disease susceptibility for neurodevelopmental disorders. The study found no correlation between paternal BMI or semen quality and age-related methylation changes.
Researchers found epigenetic changes in post-COVID patients, including genes associated with taste and smell, as well as cell metabolism. These findings may lead to the development of new diagnostic tools for this and similar diseases.
Researchers found 270 distinct differentially methylated regions (DMRs) in AD brains compared to normal controls, validating their key findings using an independent cohort. The study offers a novel approach to investigating the relationship between DNA methylation and gene/protein expression.
A recent study found that metformin users had distinct DNA methylation profiles compared to non-users, potentially revealing its role in longevity. The research identified several pathways related to delirium and aging, highlighting the need for further investigation into metformin's mechanism of action.
Research reveals DNA methylation plays a crucial role in tree-fungi symbiosis, affecting water uptake and environmental adaptability. Epigenetic modulation between trees and fungi enhances symbiotic relationships, with implications for forest management and climate change mitigation.
Researchers examined three epigenetic age acceleration measurements and found inverse associations with lung cancer risk in men and younger participants. However, these findings did not support a positive association between epigenetic age measures and lung cancer risk in the study.
Researchers have discovered that cocaine addiction is associated with faster brain aging, with changes in DNA methylation in the prefrontal cortex contributing to this effect. The study, which analyzed cryo-preserved brains of deceased male donors, found that cells in this region appeared biologically older in individuals with CUD.
Researchers found that cells don't pick certain sites to methylate, but rather where not to, due to the joints of messenger RNA. This discovery has implications for gene therapies, disease treatment, and our understanding of biology and evolution.
A randomized controlled trial found that calorie restriction slowed the pace of biological aging in healthy adults by 2-3%, measured using the DunedinPACE algorithm, which translates to a 10-15% reduction in mortality risk. The intervention had no effects on other epigenetic clocks.
A team led by Dr. Feng Wang found that Argonaute 4 binds to and retains snippets of ribonucleic acid molecules guiding the chemical inactivation of genes with matching sequences, playing a crucial role in gene silencing through DNA methylation. The retained RNA fragments help tether AGO4-RNA complexes to corresponding DNA sequences, bo...
Scientists have mapped and analyzed DNA methylation profiles in 580 different animal species, providing insights into the evolutionary conservation of epigenetic mechanisms. The study reveals that DNA methylation constitutes a cancer-protective mechanism in large animals with long lifespans, contradicting Peto's paradox.
A new method, iDEMS, uses quantitative mass spectrometry to measure DNA modifications on purified, replicated DNA. This approach reveals that DNA methylation levels increase steadily after replication and are eventually diluted by cell division.
A study from Cornell University found that broccoli grows abnormally in warmer temperatures, resembling cauliflower. Researchers identified the genetic basis of this phenomenon, revealing that DNA methylation plays a key role in regulating floral development and causing abnormal growth.
The study found that methylation of the HLA-A gene and focal deletions resulted in reduced immune cell activity against cancer cells, leading to fewer immune cells being available to attack cancer cells. The researchers also discovered differences in immune cell response between various sites of metastasis.
A new study finds epigenetic aging is associated with aberrant neural oscillatory dynamics serving visuospatial processing in people with HIV. Participants showed accelerated biological age and different brain activity patterns compared to controls, suggesting a link between biological aging and neural function in PWH.
Researchers found that early prenatal alcohol exposure changes gene function and epigenome in placenta and human embryonic stem cells. These changes are associated with altered DNA methylation patterns, particularly in genes linked to nervous system development, such as DPPA4 and FOXP2.
A 16-year longitudinal study found associations between DNA methylation-based measures and neuropsychologically-validated cognitive decline in midlife. The results suggest that these measures may serve as biomarkers for a molecular aging mechanism, potentially identifying individuals at risk of cognitive impairment and dementia.
Researchers from Okayama University found that Actinidia arguta (Sarunashi) juice and its component isoquercetin inhibit lung cancer development in mice, accelerating DNA repair and suppressing Akt-mediated growth signaling. The study suggests Sarunashi juice as an attractive candidate for chemoprevention.
Researchers developed a new epigenetic biomarker, GrimAge version 2, which leverages two DNAm-based estimators of plasma proteins to predict mortality risk. The study found that GrimAge 2 outperforms existing clinical biomarkers in predicting mortality across multiple racial/ethnic groups and associations with age-related conditions.
Researchers found that differences in epigenetic DNA methylation predict behavioral differences between dogs better than genetic markers. Epigenetics are more informative for behavior than genetics, and the results open up new possibilities for screening and selecting desired behavioral traits in companion or service dogs.
Researchers uncovered distinct DNA methylation profiles in ocean microbes, shedding light on population dynamics and interactions. The study's findings have significant implications for understanding pathogenicity and developing new approaches to monitoring environmental health.
Researchers at Kyoto University discovered METTL16's role in DNA repair and erythropoiesis, a process generating 200 billion new red blood cells daily. Tiny methyl groups on specific mRNAs play a pivotal role in this process, involving mechanisms mediated by RNA-binding proteins.
Researchers have developed a unique resource for understanding the impact of early life environmental exposures on health. The study, which analyzed data from 1,301 mother-child pairs, identified associations between 92 in pregnancy and 116 in childhood with molecular profiles at different levels.
Researchers at Michigan Medicine found a strong association between lower grip strength and accelerated biological aging in middle-aged and older adults. This study provides evidence that maintaining muscle strength across the lifespan may help protect against age-related diseases.
Researchers at La Jolla Institute for Immunology discovered a direct link between TET protein loss of function and missing genes in embryonic stem cells, which can lead to cancer growth. The study found that TET proteins are crucial for maintaining genome stability, and their loss results in aneuploidies, a common feature of cancer cells.
Research found that harsh parenting can lead to increased DNA methylation, predisposing children to depression. The study compared 21 adolescents with good parenting to 23 with harsh parenting and found significant differences in DNA methylation levels.
Researchers found that centenarians have a lower epigenetic age than expected, suggesting slowed biological aging. The study used four epigenetic clocks based on small CpG sites to reveal these differences.
The study analyzed DNA methylation in skin tumor samples, revealing correlations between changes in proteins regulating the organism and prognosis. The results identified potential markers of patient survival and suggested a new route for understanding melanoma subtypes.
A new research paper has demonstrated that psychological factors, such as feeling unhappy or being lonely, add up to 1.65 years to one's biological age, significantly impacting overall health and longevity.
Researchers used single-cell gene expression analysis to study DNA methylation's impact on cell fate. They found that maintaining correct DNA methylation suppresses past and alternative cell identities, while removal of methylation allows certain cell types to form.
A new study suggests that low-dose ketamine is generally safe and effective in treating clinical symptoms of children diagnosed with ADNP syndrome, a rare neurodevelopmental disorder. The treatment resulted in improvements in social behavior, attention deficit, and hyperactivity, as well as reduced aggression.
Research by NUS led by Professor Zhang Cuilin found that maternal physical activity before pregnancy is associated with placental DNA methylation patterns affecting fetal growth. Additionally, optimal fatty acid intake in early pregnancy optimizes fetal growth throughout pregnancy.
Researchers have identified a potential new therapeutic approach for angioimmunoblastic T-cell lymphoma (AITL) by understanding the mechanism of its development. A team from the University of Tsukuba found that B cells accumulate mutations in genes controlling genetic material packaging, leading to AITL.
A study led by UMD researchers found that hibernating big brown bats experience slower epigenetic aging, with their biological clock extending by nearly a year. The study established the link between hibernation and longer lifespans in small mammals.
Researchers found that high temperatures induce epigenetic changes in zebrafish embryos, leading to sex reversal and altering the sex ratio. This study provides insights into the mechanisms behind climate change's impact on species with genotype-by-environment sex determination.
Researchers found associations between perceived discrimination and epigenetic aging in US middle-aged and older adults. Depressive symptoms were identified as a potential mediator in these relationships, particularly among women and White adults.