Articles tagged with Dna Methylation
A new study found that DNA methylation aging biomarkers, such as GrimAge2 and DunedinPoAm, significantly mediate the relationship between social disadvantage and mortality risk. The findings suggest that epigenetic aging measures capture the cumulative effects of multiple social and environmental stressors.
Researchers at UT MD Anderson Cancer Center have made significant advancements in targeted therapy treatments for advanced lung cancer and early-stage classical Hodgkin lymphoma. The studies showcase high response rates with novel combination therapies and a new understanding of how an enzyme affects infertility and cancer progression.
A specific region of Dicer must be activated to achieve proper cell division and reproduction, a discovery that sheds light on the regulation of this enzyme's critical role in both cancer biology and fertility. This finding opens new avenues for studying how small epigenetic changes contribute to disease.
Researchers developed RF-SIRF, a quantitative method to detect and map reversed DNA replication forks with single-cell resolution. The study identified unique epigenetic codes for DNA replication stress that can be further examined to understand genomic stability, aging, and treatment response.
Researchers mapped epigenome changes in cells that regulate blood sugar levels, finding patterns differ between people with and without type 2 diabetes. Epigenetic alterations impact insulin-producing beta cells, leading to impaired energy production and reduced insulin release.
Research finds PDX1 gene plays a tumor-promoting role in human PCa cells by influencing metabolic pathways. The study identifies PDX1 as differentially hypermethylated in prostate cancer tissues, contributing to its aggressive characteristics.
Researchers at UT MD Anderson have made significant advancements in cancer care, including a blood-based biomarker for cancer risk in people with Lynch Syndrome and a new target to sensitize pancreatic tumors to immunotherapy. The studies also identified a strategy to overcome radiation therapy resistance in lung cancer.
A new study published in Aging-US found that plant-based dietary patterns are associated with slower epigenetic aging. The research analyzed data from two large cohorts and found that higher intake of plant foods was linked to decelerated biological aging.
New research reveals that skeletal muscle retains a 'molecular memory' of repeated disuse, which differs between young and old muscles. Younger muscles show resilience, while older muscles become increasingly susceptible to atrophy. The study provides insights into how muscle responds to inactivity and its potential for recovery.
A narrative review reveals that disaster-related prenatal maternal stress can lead to epigenetic modifications in offspring, affecting child health outcomes. Epigenetic markers show promise for shaping interventions to mitigate the effects of stress on health outcomes.
A new study introduced epigenetic clocks in skeletal muscle from an Asian population, identifying DNA methylation sites associated with age and developing accurate age prediction models using NGS and SBE. The findings offer a reliable method for estimating age and its potential applications in forensic science.
A recent study reveals how the C/G fusion hijacks DNA methylation and chromatin architecture to drive aggressive acute myeloid leukemia in children. The study identifies DNMT3B as a critical effector of the fusion, highlighting its potential as a therapeutic target.
Researchers found that higher levels of theobromine are associated with slower biological aging in humans, as measured by epigenetic markers such as DNA methylation and telomere length. The study suggests that theobromine may support healthy aging by influencing molecular epigenetic processes.
TBX4 plays a central role in regulating mesenchymal-epithelial communication during organogenesis. It also has significant implications in respiratory medicine, orthopedics, and oncology.
Research from King's College London found that theobromine in dark chocolate is linked to lower biological age. The study tested blood-based markers of biological ageing and found a correlation between theobromine levels and reduced biological age.
Researchers discovered unicellular organisms have more intricate DNA methylation systems than multicellular organisms. This finding opens new possibilities for targeting parasites and developing new drugs against diseases caused by protists.
Researchers identified distinct epigenetic signatures in cord blood linked to increased schizophrenia and other neurodevelopmental conditions. Newborns with higher genetic susceptibility showed differences in DNA methylation patterns, especially in immune-related regions.
A new study found that faster biological aging measured by DNA-based epigenetic clocks is associated with greater cognitive decline and higher risk of mild cognitive impairment in Hispanic/Latino adults. The study highlights the potential of epigenetic clocks to track changes in brain health over time.
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.
Long-term exposure to fine air pollutants like PM2.5 can impair metabolic health by disrupting the normal function of brown fat through complex epigenetic changes. The study identified two enzymes, HDAC9 and KDM2B, as key drivers of this process.
Researchers reprogrammed the epigenetic code to affect tumour growth and survival in multiple myeloma. This study presents a comprehensive map of epigenetic alterations in multiple myeloma, highlighting site-specific increases in DNA and protein methylation that control gene activity.
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.
Researchers found that faster biological aging is associated with lower scores on digital cognitive tests, particularly among older adults. DNA methylation patterns were used to estimate biological age acceleration, and protein markers PAI1 and ADM showed strong associations with lower cognitive scores.
A recent study developed a highly accurate risk prediction framework for preterm birth using genomics, transcriptomics, and large language models. The model achieved an AUC of nearly 90%, making it the most powerful approach in predicting preterm birth.
Researchers found that cancer does not typically affect forensic age estimation accuracy, except for very aggressive forms of cancer. In contrast, blood cancers led to large errors, with ages overestimated by up to 50 years.
A new study found a strong association between accelerated epigenetic aging and increased risk of colorectal cancer in postmenopausal women. Lifestyle factors like diet significantly influenced this risk, with healthy diets potentially reducing cancer risk associated with biological aging.
Researchers have developed a new epigenetic editing method using CRISPR technology, which can switch genes back on by removing methyl groups attached to silenced or suppressed genes. This approach shows promise for treating people with Sickle Cell-related diseases, reducing the risk of unwanted changes and potential health problems.
A new research paper found that epigenetic aging is linked to cognitive decline in midlife, with twins experiencing a larger drop in IQ scores if they had grown up in families with lower socioeconomic status. This study provides new evidence for the impact of childhood adversity on brain aging.
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.
Researchers have developed a new technique to comprehensively profile DNA methylation in single cells, enabling better study of epigenetics in cancer and other diseases. The scDEEP-mC method yields high-resolution maps of DNA methylation and supports cutting-edge analyses in single cells.
A new study found that telomere shortening is not a shared characteristic of all progeroid syndromes, which cause individuals to display symptoms of aging far earlier than expected. The research suggests that the underlying biology of each syndrome plays a crucial role in determining whether telomere shortening occurs.
Research highlights the critical role of epigenetic changes in hepatocellular carcinoma development, including DNA methylation and histone modifications. Noncoding RNAs also play a key role in HCC pathogenesis and may serve as biomarkers for diagnosis and prognosis.
A new study reveals that the weight of fathers during adolescence can harm genes in future children, linked to asthma, obesity, and low lung function. The effect is more pronounced in female children, highlighting a potential vulnerability window for lifestyle influences.
Researchers found that consuming foods high in methyl adaptogens, such as green tea and berries, can reduce markers of epigenetic aging. The study, which involved middle-aged men, suggests that targeted food choices may help slow the aging process.
Researchers identified two distinct epigenetic profiles in Burkitt Lymphoma, one associated with a favorable clinical course and the other with early relapse and shorter survival. This discovery has implications for treatment strategies and may lead to personalized medicine approaches.
A study led by IGTP identifies an epigenetic signature of 156 altered CpG sites in primary tumours that can help stratify patients according to their risk of developing distant metastases. The findings contribute to a better understanding of the disease and open new avenues for patient stratification and personalised treatment strategies.
A study on captive olive baboons found that about a quarter exhibited accelerated aging, while another quarter showed signs of slower aging. The researchers investigated physical indicators such as walking speed and fine motor skills, but found that these changes were more closely related to chronological age than epigenetic age.
Researchers are exploring the use of immunotherapy drugs and a tumor-busting 'oncolytic' virus to tackle high-grade neuroendocrine tumors. A new clinical trial, led by Dr. Aman Chauhan, aims to unlock the mysteries of renal cell carcinoma through detailed laboratory and clinical studies.
Researchers developed a new method to measure changes in DNA that can help predict a person's age, focusing on how random chemical tags become over time. The study found that methylation entropy predicted age as accurately as traditional methods, with an average error of just five years.
Researchers developed a cell-based reporter assay that can quantify epigenetic changes induced by chemicals and potential carcinogens. The epi-TK assay detects gene silencing and activation, reflecting epigenetic changes associated with both gene expression and DNA methylation.
Researchers at ISTA have discovered a new DNA marker, N4-methylcytosine (4mC), crucial for sperm function and fertility in the liverwort Marchantia polymorpha. The team found that high levels of 4mC are necessary for agile sperm development, affecting swimming speed, direction, and fertilization success.
A comprehensive genomic and epigenomic analysis of ICE syndrome has identified key genes and epigenetic changes associated with the disorder. The study found significant associations between genetic variants and copy number losses in specific genes, as well as promoter hypomethylation leading to epithelioid hyperplasia.
Research reveals that placental DNA methylation influences expression of genes associated with psychiatric disorders, suggesting genetic risk manifests during prenatal stage. The study identifies schizophrenia, bipolar disorder, and major depression disorder as most strongly linked conditions.
A Finnish twin study investigated the relationship between long-term leisure-time physical activity and mortality, finding that moderate activity offers a 7% lower mortality risk. The study also found no additional benefit from high levels of physical activity in reducing mortality risk.
The study identified over 34,000 genomic regions with distinct ON/OFF methylation patterns, including novel imprinted regions and tissue-specific variability. This atlas provides valuable insights into epigenetic regulation and may help explain the inheritance patterns of genetic diseases such as CHARGE syndrome.
A new study suggests that extreme heat exposure accelerates biological aging in older adults, with participants experiencing greater increases in biological age in neighborhoods with more days of high heat. The study analyzed epigenetic changes and found a significant correlation between heat index values and biological age.
A study found that DNA methylation clocks used in forensic science and epigenetics are less reliable when applied to non-blood tissues, such as lungs, colon, and kidneys. The researchers suggest that organ-specific epigenetic clocks may be needed to improve biological age prediction.
Researchers have uncovered dynamic methylation changes that shape fruit flavor, providing insights into breeding improved lemon varieties with enhanced taste and market value. The study's findings highlight a direct connection between DNA methylation patterns and citric acid metabolism.
A new study reveals that postnatal exposure to tobacco smoke can alter the way genes are expressed, increasing the risk of diseases such as asthma and cancer. The study found 11 regions associated with second-hand smoke exposure, six of which are linked to smoking-related diseases.
Researchers identified distinct molecular features of early onset colorectal cancer in racial and ethnic minorities, including widespread changes in DNA methylation and metabolic gene expression. These findings suggest that environmental risk factors such as diet and stress may contribute to the disparities in incidence and mortality a...
A study found that a simple blood test could predict breast cancer risk in older women by measuring biological aging via DNA methylation changes. Lifestyle factors, such as obesity and hormone replacement therapy, also influenced epigenetic aging and breast cancer risk.
Researchers developed a new tool to measure biological aging in individual cell types, providing insights into diseases like Alzheimer's and liver pathologies. The study found that certain brain cells and liver cells show signs of accelerated aging, making it a better tool for detecting diseases.
Prof. Stephen Baylin, Prof. Peter Jones, and Prof. Andrew Feinberg will receive the Harvey Prize for their groundbreaking work in cancer epigenetics, transforming our understanding of cellular function and disease progression. Their research has led to new diagnostic approaches and accelerated treatments targeting epigenetic mechanisms.
A study has identified a gene called MdTCP11 that controls the growth of compact apple trees, also known as spur-type varieties. These trees exhibit increased fruit yield and require less pruning, making them ideal for modern orchards.
A novel method has been developed to infer DNA methylation patterns in non-skeletal tissues from ancient specimens, providing new insights into human evolution. The study found over 1,850 sites of differential methylation specifically in prefrontal cortex neurons, linked to genes crucial for brain development.
This systematic review analyzes 33 biological clocks used for aging and mortality quantification, categorizing them into epigenetic and phenotypic clocks. Epigenetic clocks demonstrate precision in estimating chronological age through DNA methylation, while phenotypic clocks predict mortality using easily measurable clinical variables.
A recent study demonstrates that stool DNA testing is highly sensitive and specific for detecting colorectal cancer among Thai individuals, with a sensitivity of 91.5% and specificity of 90.3%. The test targets methylation statuses of three genes and may provide a viable non-invasive alternative to colonoscopy.
Researchers found that plants have multiple enzymes for adding methyl groups to DNA, allowing them to override genetic instructions. The study reveals the evolutionary history of these enzymes and their unique structures, providing insights into plant resilience to environmental changes.
A new study found that the effects of alcohol exposure on an embryo prior to implantation can be detected in the late-gestation placenta. The research revealed significant molecular changes in the placenta, including DNA methylation alterations that could serve as a molecular signature for detecting alcohol exposure.
A new mechanism of DNA damage response has been identified, involving an RNA transcript that regulates genome stability. The study found that NEAT1, a long non-coding RNA transcript, plays a crucial role in recognizing and repairing DNA double-strand breaks.