Scientists have discovered that machine perfusion can reduce the biological age of donated livers by up to 30%, potentially boosting transplant success and paving the way for drug-based rejuvenation. This breakthrough offers a promising alternative to traditional cold storage.
- Machine perfusion reduces liver biological age by roughly 30%.
- Rejuvenated livers may lower post‑transplant failure rates.
- Future drug therapies could mimic the perfusion effect at a lower cost.
When a donor organ is removed, the clock starts ticking. Surgeons typically flush it with a preservative solution, bag it, and place it on ice, where degradation begins almost immediately. The organ must then be transplanted within a few hours.
An alternative has gained traction: machine perfusion. The liver is pumped with nutrients and oxygen, removing waste products for about six to twelve hours, essentially giving it a second life. This allows doctors to assess the organ’s viability before implantation.
Research shared with MIT Technology Review shows that perfused livers become biologically younger at the molecular level. Using “aging clocks” to examine epigenetic DNA marks in 37 samples, the team found that machine‑perfused livers were biologically 30% younger than their chronologically younger, cold‑stored counterparts.
Why This Matters
BozokMedia analysis indicates that perfusion improves inflammatory pathways and tissue structure, enhancing post‑transplant function and potentially increasing the usable donor pool.
“Pumping livers at 34 °C with oxygen and nutrients actually reverses their biological age,” says Dr. Longchamp.
Frequently Asked Questions
Q1: Does this technique work for all donor ages?
A1: Current studies focus on donors in their 30s‑50s; further research is needed for 70‑80‑year‑old donors.
Q2: How expensive is machine perfusion?
A2: Costs about €10,000 in Germany and $80,000–$100,000 in the U.S.
