Heroin use is associated with excessive histone acetylation, an epigenetic process that regulates gene expression, and more years of drug use correlate with higher levels of hyperacetylation, ...

Epigenetics, the dynamic regulation of genetic expression, involves complex molecular mechanisms. While the process of gene silencing by methylating the H3K27 position in histones is understood, not ...

In 2018, when the study of potentially modifiable genetic markers for sleep apnea was emerging, a group of researchers from Mexico published a study titled, “Dad’s snoring may have left molecular ...

All the cells in an organism have the exact same genetic sequence. What differs across cell types is their epigenetics—meticulously placed chemical tags that influence which genes are expressed in ...

All cells in the body contain the same DNA, but different cell types express different genes; skin cells express genes for the skin, liver cells express liver genes, and so on. This coordination is ...

In Alzheimer’s disease, brain damage is often linked to a mix of problems, including beta-amyloid buildup, tau pathology, ...

In skin, some aberrant adult epidermal stem cells turn on SOX9, kickstarting a process that ultimately activates cancer genes. Early on, every stem cell faces a fateful choice. During skin development ...

The past few years have seen an explosion of heroin abuse and deaths from opiate overdose. But little is known about the molecular underpinnings of heroin addiction. A new study in Biological ...

Salk Institute researchers find new mode of epigenetic targeting, showing for the first time that genetic sequences can direct new DNA methylation patterns in plants LA JOLLA (November 21, 2025)—All ...