Your ideas are not bad, but in all cases there are a few reasons that make them pretty much unusable in a real world (medical) application. Also none of your approaches solve the problem of resistance:...

In order to treat amblyopia you first have to treat the initial problem with the eyes that caused it, which is a medical issue and probably not what you are asking anyway. However, as wikipedia states,...

This is a cool question and while I'm not a neuro(bio)logist, I've tried to quickly look into this. Basically what you are asking for is the part of the (human) connectome (this is what researchers ...

Humans generally have the same set up of olfactory receptors, since they are encoded by genes (there likely are minor differences between people, since there are a lot of these genes). Therefore ...

Bacteria don't produce cytokines naturally (while some might be 'useful' for immune suppression, bacteria can't use human genes/DNA, which has introns, and the chance to randomly come up with a gene ...

No, this will likely never work - but chimeric trans plantations of 'humanised' organs might become possible. Firstly, the process of injecting human/patient cells into an embryo would - if it works -...

First, I want to point out that the RNA world hypothesis is just that - an hypothesis. While it has been shown that it's possible for certain RNA molecules to make copies of itself, this is not a '...