Comment on

• Dopamine neurons implanted into people with Parkinson's disease survive without pathology for 14 years.

  Mendez I, Viñuela A, Astradsson A, Mukhida K, Hallett P, Robertson H, Tierney T, Holness R, Dagher A, Trojanowski JQ, Isacson O. Mendez I, et al. Nat Med. 2008 May;14(5):507-9. doi: 10.1038/nm1752. Epub 2008 Apr 6. Nat Med. 2008. PMID: 18391961 Free PMC article.
• Lewy body-like pathology in long-term embryonic nigral transplants in Parkinson's disease.

  Kordower JH, Chu Y, Hauser RA, Freeman TB, Olanow CW. Kordower JH, et al. Nat Med. 2008 May;14(5):504-6. doi: 10.1038/nm1747. Epub 2008 Apr 6. Nat Med. 2008. PMID: 18391962
• Lewy bodies in grafted neurons in subjects with Parkinson's disease suggest host-to-graft disease propagation.

  Li JY, Englund E, Holton JL, Soulet D, Hagell P, Lees AJ, Lashley T, Quinn NP, Rehncrona S, Björklund A, Widner H, Revesz T, Lindvall O, Brundin P. Li JY, et al. Nat Med. 2008 May;14(5):501-3. doi: 10.1038/nm1746. Epub 2008 Apr 6. Nat Med. 2008. PMID: 18391963