Precision and timing of gene expression is essential for normal biological functions and, when disrupted, can lead to many ...

Epigenetics is the study of various heritable alterations that control gene expression without changing the DNA sequence. 1 The name epigenetics comes from the Greek prefix “epi”, which means on top ...

UCSF scientists engineered old fibroblast cells to turn their genes on and off in the same way as young fibroblasts. The old ...

What do your genes have to do with growing old? Quite a lot. But is it due to the actual DNA, or the way those genes are expressed? KPBS sci-tech reporter Thomas Fudge has more on new research that ...

Scientists identified 473 human genes that act as genetic “on/off switches,” shaping disease risk through tissue-specific or universal patterns regulated by DNA changes and hormones. Study: ...

A new research paper featured as the cover of Volume 17, Issue 12 of Aging-US was published on December 22, 2025, titled "A ...

Gene editing is now reaching the mainstream, ushering in a new era of genetic manipulation. Traditionally, inserting or deleting entire genes, regulating their expression, and altering specific ...

The natural RNAi mechanism can be directed by either short interfering RNA (siRNA) or microRNA (miRNA). 1 There are four key steps in the RNAi pathway. When miRNA acts as the guide for RNAi, only a ...

Vitamin C is a key nutritional component in fruits, yet its concentration often changes dramatically as fruits develop.

Unlike animals, plants generate most organs after embryogenesis through stem cell–driven meristems, enabling lifelong growth ...