Even here, though, stem-cell therapists talk openly of treating brain diseases such as Parkinson's with specially grown nerve cells, so some form of partial immortalisation might be on the cards.

即使这样，干细胞临床医然在公开探讨用专门培养的神经细胞来治疗诸如帕金森症一类的脑疾病，这样看来，现某种形式的"局部永"或许会为可能。