PMID- 23318518 OWN - NLM STAT- MEDLINE DCOM- 20130326 LR - 20211021 IS - 2168-6157 (Electronic) IS - 2168-6149 (Print) IS - 2168-6149 (Linking) VI - 70 IP - 1 DP - 2013 Jan TI - Persistent intrathecal antibody synthesis 15 years after recovering from anti-N-methyl-D-aspartate receptor encephalitis. PG - 117-9 LID - 10.1001/jamaneurol.2013.585 [doi] AB - BACKGROUND: Anti- N-methyl-D-aspartate receptor (NMDAR) encephalitis is a severe autoimmune disorder characterized by high intrathecal antibody synthesis. Little is known about the long-term follow-up of the cerebrospinal fluid antibody status. OBJECTIVE: To describe persistent intrathecal antibody synthesis in a clinically healthy person 15 years after recovering from anti-NMDAR encephalitis. DESIGN: Case report. SETTING: Academic medical center. PATIENT: A 40-year-old woman who had been diagnosed as having encephalitis of unknown origin in 1995. MAIN OUTCOME MEASURES: Clinical evaluation and NMDAR antibody testing. RESULTS: On reexamination in 2011, the patient had fully recovered. Investigation of archived as well as follow-up serum and cerebrospinal fluid samples revealed intrathecal synthesis of NMDAR antibodies. CONCLUSIONS: This is the longest follow-up on a patient with anti-NMDAR encephalitis. Our findings emphasize that intrathecal antibody synthesis does not necessarily reflect disease activity and that the significance of NMDAR antibody titers needs to be interpreted for each patient according to the clinical context. FAU - Hansen, Hans-Christian AU - Hansen HC AD - Department of Neurology and Psychiatry, Friedrich-Ebert-Hospital, Neumunster, Germany. FAU - Klingbeil, Christine AU - Klingbeil C FAU - Dalmau, Josep AU - Dalmau J FAU - Li, Wenhan AU - Li W FAU - Weissbrich, Benedikt AU - Weissbrich B FAU - Wandinger, Klaus-Peter AU - Wandinger KP LA - eng GR - R56 CA089054/CA/NCI NIH HHS/United States GR - R01CA89054/CA/NCI NIH HHS/United States GR - R01 MH094741/MH/NIMH NIH HHS/United States GR - R01NS077851/NS/NINDS NIH HHS/United States GR - R01 NS077851/NS/NINDS NIH HHS/United States GR - R01 CA107192/CA/NCI NIH HHS/United States GR - R01MH094741/MH/NIMH NIH HHS/United States GR - R01 CA089054/CA/NCI NIH HHS/United States PT - Case Reports PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - JAMA Neurol JT - JAMA neurology JID - 101589536 RN - 0 (Autoantibodies) RN - 0 (Receptors, N-Methyl-D-Aspartate) SB - IM MH - Adult MH - Anti-N-Methyl-D-Aspartate Receptor Encephalitis/cerebrospinal fluid/*immunology/physiopathology MH - Autoantibodies/*biosynthesis/cerebrospinal fluid MH - Female MH - Follow-Up Studies MH - Humans MH - Receptors, N-Methyl-D-Aspartate/*immunology MH - Time Factors PMC - PMC3707142 MID - NIHMS490665 EDAT- 2013/01/16 06:00 MHDA- 2013/03/27 06:00 PMCR- 2013/07/10 CRDT- 2013/01/16 06:00 PHST- 2013/01/16 06:00 [entrez] PHST- 2013/01/16 06:00 [pubmed] PHST- 2013/03/27 06:00 [medline] PHST- 2013/07/10 00:00 [pmc-release] AID - 1557586 [pii] AID - 10.1001/jamaneurol.2013.585 [doi] PST - ppublish SO - JAMA Neurol. 2013 Jan;70(1):117-9. doi: 10.1001/jamaneurol.2013.585.