Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital

Subtle Phenotype Differences in Psychiatric Patients With and Without Serum Immunoglobulin G Antibodies to Synapsin

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


  1. The Puzzle of Emotion Regulation: Development and Evaluation of the Tangram Emotion Coding Manual for Children

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Autoimmune Diseases and Psychotic Disorders

    Publikation: Bidrag til tidsskriftReviewForskningpeer review

  1. Favorable five-year outcomes for heart failure diagnosed in younger patients without severe comorbidity

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Does type 2 diabetes confer higher relative rates of cardiovascular events in women compared with men?

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Catheter ablation for atrial fibrillation is associated with lower incidence of heart failure and death

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  • Sverre Georg Sæther
  • Arne Vaaler
  • Anita Evjenth
  • Therese Aune
  • Markus Höltje
  • Klemens Ruprecht
  • Morten Schou
Vis graf over relationer

The discovery that antibodies targeting neuronal antigens can induce severe psychiatric symptoms has been a significant progress in the understanding of psychiatric disorders. Antibodies targeting synapsin I in serum and cerebrospinal fluid (CSF) were first reported in 2015 in a patient with limbic encephalitis. Because of its regulatory function for neurotransmitter release, synapsin I has been suggested to play a role in psychiatric disorders. It is, however, unknown whether or not synapsin antibodies are of clinical significance in patients with psychiatric disorders. In the present study, we aimed to investigate if synapsin I immunoglobulin (Ig)G serum antibody positive patients admitted to acute psychiatric care have a different psychiatric phenotype than synapsin IgG antibody negative patients. A total of 13 anti-synapsin positive patients were matched for age, sex, and psychiatric diagnosis with 39 anti-synapsin negative patients from the same cohort. The groups were compared regarding 11 clinical features frequently seen in anti-neuronal antibody associated disorders. Anti-synapsin positive patients had higher agitation scores as measured with the Positive and Negative Syndrome Scale Excited Component [median (interquartile range) 11 (8) versus 7 (7), p = 0.04] compared to controls. However, the absolute scores were low in both groups, and the difference may not be clinically significant. Other clinical features assessed (e.g. hallucinations, delusions) did not differ between groups. We conclude that synapsin serum IgG antibodies lack syndrome specificity in patients admitted to acute psychiatric inpatient care. However, further studies addressing functional effects of synapsin antibodies are needed to conclude whether or not they have a pathophysiological relevance.

TidsskriftFrontiers in Psychiatry
Sider (fra-til)401
StatusUdgivet - 2019

ID: 59450774