By Josh Conway – Lifespan.io –
Disruption to genetic structures is associated with the expression of old viral genes. Researchers publishing in Nature Aging have investigated one of the core biological reasons behind the decline of stem cells’ ability to proliferate.
The genetic component of cells is comprised of two main parts: heterochromatin and euchromatin. Heterochromatin is largely silent, as it is a tightly packed mass that consists primarily of non-coding DNA. Euchromatin, on the other hand, is rich in actively transcribed genes and is considerably less packed.
