Medical research

New research shows how stress can weaken defenses

Research from the lab of Mark Alkema, Ph.D., professor of neurobiology, sheds light on how the "flight-or-flight" response impairs long-term organism health. The study, conducted in the nematode worm, C. elegans, a common ...

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 ...

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