Genetics

The secret of DNA methylation

Methylation refers to a chemical modification of DNA and this modification can occur in millions of positions in the DNA sequence. Until now, scientists believed that this epigenetic phenomenon actively reduced the expression ...

Health

Q&A: What the EPA limits on 'forever chemicals' in water mean

No one wants to imagine chemicals in the water they drink. Yet PFAS—the "forever chemicals" used in products from clothing to some non-stick pans—contaminate nearly half of tap water in the U.S., according to a 2023 U.S. ...

Health

Sick and dying workers demand help after cleaning coal ash

The Tennessee Valley Authority, long respected for providing good jobs and cheap electricity, is facing a growing backlash over its handling of a massive coal ash spill a decade ago, with potentially serious consequences ...

Health

Scrapping the National Children's Study is a mistake

Environmental health research has confirmed that chronic, low-level exposure to toxins in our environment – including our food, air and water – can have a significant impact on our health. We need to expand our understanding ...

Genetics

Array pinpoints imprinted genes with potential links to disease

Researchers from North Carolina State University have developed an array that assesses methylation levels of genes located in imprint control regions (ICRs) within the human genome. The array represents a cost-effective, ...

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