I red it. It talks about only replacable structures. This is why I wanted to get deeply into what do you mean.
Here are the structures, that in your link are being damaged primarely:
"Such proteins are responsible for the elasticity of the artery wall, the transparency of the lens of the eye, and the high tensile strength of the ligaments"
- Arteries are being transplanted currently from one place of the body to another. Furthermore veins are being transplanted on the places of the arteries. Give new arteries, the medicine already knows how o place them in you.
- The lens of the eye is being replaced with artifitial one today. The methodics exists. The lens simply currently is artifitial. Make a biological lense from the patients cells, and it will be replaced. The surgery procedure exists.
- The ligaments are transplantable too. They are just strches of connective tissue. Give the new ligaments, and the surgery will place them in their place.
"One subtle form of mechanical damage that probably contributes to the stiffening of the large arteries"
- The larger is an artery the easier it can be replaced by surgery.
The idea, that you can make new structures with stem cells and replace the old ones is enough to solve all of the medical problems all over the body.
If some area has some damage, no matter what exactly the damage is, accumulation, crosslinks or whatever you don't like, then you can fix it by simply replacing that part. With genetically identical structure. The whatever damage goes away with the removed part.
This is the correct path to the immortality.
Make the new structures and find a way to replace them.
Not impossible per se.
I am not talking only fantasies. The future is knocking on the door.
A team, that makes arteries from stem cells:
http://www.futuretim...tm#.VMUBwSwpq9f
Some basic info about replacing blood vessels:
http://www.healthlin...-bypass-surgery
The routine procedure for replacement of the lens:
https://www.youtube....h?v=qNdbEp88M4s
The methods for reaching ligamnets are dependant on the ligament to be reached. But the modern surgery can access them.
If we make the constant replacement we will live forever.
How long we will live if we make the removal of crosslinks?