Consistent decrease in global DNA methylation and hydroxymethylation in the hippocampus of Alzheimer's disease patients.
Leonidas Chouliaras,Diego Mastroeni,Diego Mastroeni,Elaine Delvaux,Andrew Grover,Gunter Kenis,Patrick R. Hof,Harry W.M. Steinbusch,Paul D. Coleman,Bart P. F. Rutten,Daniel L.A. van den Hove,Daniel L.A. van den Hove +11 more
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TLDR
Human postmortem results strengthen the notion that AD is associated with alterations in DNA methylation and hydroxymethylation, and provide a basis for further epigenetic studies identifying the exact genetic loci with aberrant epigenetic signatures.About:
This article is published in Neurobiology of Aging.The article was published on 2013-09-01 and is currently open access. It has received 351 citations till now. The article focuses on the topics: DNA Hydroxymethylation & DNA methylation.read more
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Epigenetic Factors in Late-Onset Alzheimer’s Disease: MTHFR and CTH Gene Polymorphisms, Metabolic Transsulfuration and Methylation Pathways, and B Vitamins
TL;DR: The importance of supplementing vitamin B12 (methylcobalamin, vitamin B9 (folic acid), vitamin B6 (pyridoxine), and SAM to patients in early stages of LOAD is emphasized.
Journal ArticleDOI
Role of epigenetics in Alzheimer's disease pathogenesis.
TL;DR: Findings clearly show that epigenetic mechanisms in Alzheimer's disease are dysregulated during disease progression, already in its early stages, but it is not clear if the observed epigenetic changes represent a cause or a consequence of the disease.
Journal ArticleDOI
Altering 5-hydroxymethylcytosine modification impacts ischemic brain injury.
Zhigang Miao,Yuquan He,Ning Xin,Miao Sun,Li Chen,Li Lin,Jizhen Li,Jiming Kong,Peng Jin,Xingshun Xu +9 more
TL;DR: 5hmC modifications at the promoter region of brain-derived neurotrophic factor (BDNF) increased, which was accompanied by increased BDNF mRNA, whereas the inhibition of Tet2 reduced BDNF RNA and protein expression, and the abundance of 5hmC in blood samples from patients with acute ischemic stroke was increased.
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Opening up the DNA methylome of dementia
TL;DR: This review provides an in-depth summary of the current knowledge about DNA methylation in dementia, focusing exclusively on the analyses performed in human brain.
Journal ArticleDOI
Human pluripotent stem cell-derived models and drug screening in CNS precision medicine.
TL;DR: This work reviews advances in deriving cellular models of human central nervous system (CNS) disorders using iPSCs along with strategies for investigating disease‐relevant phenotypes, translatable biomarkers, and therapeutic targets and focuses on phenotype‐based, small‐molecule screens employing human stem cell–derived models.
References
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Epigenetic regulation of gene expression: how the genome integrates intrinsic and environmental signals
Rudolf Jaenisch,Adrian Bird +1 more
TL;DR: Advances in the understanding of the mechanism and role of DNA methylation in biological processes are reviewed, showing that epigenetic mechanisms seem to allow an organism to respond to the environment through changes in gene expression.
Journal ArticleDOI
Conversion of 5-Methylcytosine to 5-Hydroxymethylcytosine in Mammalian DNA by MLL Partner TET1
Mamta Tahiliani,Kian Peng Koh,Yinghua Shen,William A. Pastor,Hozefa S. Bandukwala,Yevgeny Brudno,Suneet Agarwal,Lakshminarayan M. Iyer,David R. Liu,L. Aravind,Anjana Rao +10 more
TL;DR: It is shown here that TET1, a fusion partner of the MLL gene in acute myeloid leukemia, is a 2-oxoglutarate (2OG)- and Fe(II)-dependent enzyme that catalyzes conversion of 5mC to 5-hydroxymethylcytosine (hmC) in cultured cells and in vitro.
Journal ArticleDOI
Alzheimer's Disease Is a Synaptic Failure
TL;DR: Mounting evidence suggests that this syndrome begins with subtle alterations of hippocampal synaptic efficacy prior to frank neuronal degeneration, and that the synaptic dysfunction is caused by diffusible oligomeric assemblies of the amyloid β protein.
Journal ArticleDOI
The Nuclear DNA Base 5-Hydroxymethylcytosine Is Present in Purkinje Neurons and the Brain
TL;DR: It is shown that, as well as 5mC in mammalian genomes, there are also significant amounts of 5-hydroxymethylcytosine (5hmC) in DNA of Purkinje neurons, which have large nuclei with apparently very little heterochromatin.
Journal ArticleDOI
Linking DNA methylation and histone modification: patterns and paradigms
Howard Cedar,Yehudit Bergman +1 more
TL;DR: Relationships between DNA methylation and histone modification have implications for understanding normal development as well as somatic cell reprogramming and tumorigenesis.
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