TY - JOUR T1 - PAthologic prion protein spreading in the peripheral nervous system of a patient with sporadic creutzfeldt-jakob disease AU - Favereaux A, Quadrio I, Vital C, et al Y1 - 2004/05/01 N1 - 10.1001/archneur.61.5.747 JO - Archives of Neurology SP - 747 EP - 750 VL - 61 IS - 5 N2 - Background  Involvement of the peripheral nervous system in the pathogenesis of prion diseases is becoming increasingly evident. However, pathologic protease-resistant prion protein deposition in the peripheral nerves of patients with Creutzfeldt-Jakob disease has never been demonstrated, to our knowledge.Objective  To determine whether mutated prion protein accumulation could be shown in the peripheral nervous system of patients with sporadic Creutzfeldt-Jakob disease.Design  Autopsy study.Patients  Three patients with sporadic Creutzfeldt-Jakob disease.Interventions  Study of the brain, spinal cord, and sciatic and superficial peroneal nerves by immunohistochemistry and Western blot analysis.Main Outcome Measure  Demonstration of protease-resistant prion protein accumulation.Results  In all cases, protease-resistant prion protein accumulation was found in the brain and posterior horns of the spinal cord. In 1 case, protease-resistant prion protein deposits were also evidenced in the dorsal root ganglia and the superficial peroneal nerve.Conclusions  Protease-resistant prion protein may be found in the peripheral nervous system of some patients with sporadic Creutzfeldt-Jakob disease. However, a larger series is required to assess the incidence of peripheral nervous system involvement and to discuss the diagnostic usefulness of peripheral nerve biopsy in sporadic Creutzfeldt-Jakob disease. SN - 0003-9942 M3 - doi: 10.1001/archneur.61.5.747 UR - http://dx.doi.org/10.1001/archneur.61.5.747 ER -