Stem cell therapy can mean a lot of things. Stem cells have been used in a variety of scenarios for many diseases. For Alzheimer's disease, stem cells could in theory be used to replace any abnormal cell populations in the patient's brain. But can we do such a thing in practice?
Cancer treatments have improved a lot over the past few years and they keep improving. One of the methods researchers use to treat cancer, is drugs, delivered by nanoparticles.
A study in particular tried to find out whether miRNAs play a role in those defects with stem cell transplants. miRNAs, are small RNA molecules that affect the genome but do not code for any proteins. It has been shown, that such small pieces of RNA can be used as signals in the cell and they can be expressed under varying stimuli.
Genetic traits that influence longevity exist, and can certainly be passed from parents to children. But as a general phenotype, longevity is very complex. All the genes related to longevity will not necessarily pass to the children in a predictable way.
Cellular ageing has been shown to lead to age related pathologies.