New findings by scientists from Canada and the United States indicate that fetal neural tissue transplanted into the brain of patients with Huntington disease not only failed to slow or stop disease progression but also underwent degeneration similar to the pathological changes of this disorder (Cicchetti F et al. Proc Natl Acad Sci U S A. 2009. doi:10.1073/pnas.0904239106 [published online ahead of print July 20, 2008]).
Stephenson J. Huntington Disease Setback. JAMA. 2009;302(7):732. doi:10.1001/jama.2009.1159