One of the most commonly used gene-delivery methods relies on engineered viruses to insert stretches of genetic material into a cell’s genome. Although effective, these viruses tend to insert their ...

The slice of code — a stretch of DNA that acts like a dial to turn up the expression of certain genes — expanded the outer ...

NAD+, or nicotinamide adenine dinucleotide, is an essential coenzyme in regulating metabolism, longevity, DNA repair, and the immune system. A deregulation of NAD+ levels is associated with signs of ...