Not all genes are active at all times. DNA methylation is one of several epigenetic mechanisms that cells use to control gene expression. This straightforward experiment demonstrated that it was ...

DNA methylation is a fundamental epigenetic mechanism in which a methyl group is added onto a nucleotide, commonly cytosine. DNA methylation affects many biological processes, including gene ...

Past psychology research suggests that there is a strong relationship between difficult experiences during childhood and the development of depressive symptoms. In fact, statistics suggest that ...

In early embryogenesis, DNA is largely devoid of methylation (top left). Post implantation, de novo methylation begins (red circles), mediated primarily by DNA (cytosine-5-)-methyltransferase ...

Medically reviewed by Karina Tolentino, RD A person's chronological and biological ages may differ. Chronological age is the number of years a person has been alive, while biological age refers to how ...

Ph.D. candidate in Georgetown University’s tumor biology program defended his dissertation, titled “Molecular Signatures of ...

For example, DNA methylation modifies gene expression without altering the nucleotide sequence. A well-studied DNA methylation-based phenomenon is genomic imprinting (ie, genotype-independent ...

Dunn, recently carried out a study exploring how DNA methylation, an epigenetic modification that entails the addition of a methyl group to the DNA, contributes to the well-documented relationship ...