title: 123I-ADAM SPET imaging of serotonin transporter in patients with epilepsy and comorbid depression.
abstract: BACKGROUND
  Purpose of the study was to investigate alterations in midbrain serotonin transporter (SERT) binding in patients with epilepsy and symptoms of depression compared to patients with epilepsy with no symptoms of depression.
  
  
  METHODS
  We studied 12 patients with epilepsy (7 patients had focal and 5 had generalized epilepsy syndromes). The presence of self-reported symptoms of depression was assessed using Beck Depression Inventory (BDI) and the Emotional State Questionnaire (EST-Q). The binding potential of the SERT was assessed by performing brain single photon emission tomography (SPET) using the SERT radioligand 2-((2-((dimethylamino)methyl)phenyl)thio)-5-(123)iodophenylamine (123I-ADAM).
  
  
  RESULTS
  Seven patients had BDI and EST-Q subscale scores greater than 11 points, which was interpreted as the presence of symptoms of depression. We found that 123I-ADAM binding was not significantly different between patients with epilepsy with and without symptoms of depression. In addition, 123I-ADAM binding did not show a significant correlation to either BDI or EST-Q depression subscale scores and did not differ between patients with focal vs. generalized epilepsy.
  
  
  CONCLUSIONS
  The results of our study failed to demonstrate alterations of SERT binding properties in patients with epilepsy with or without symptoms of depression.
authors.affiliation: Department of Neurology and Neurosurgery, University of Tartu, 8 L, Puusepa St,, 51014 Tartu, Estonia. maarika.liik@kliinikum.ee.
authors.forename: Maarika
authors.initials: M
authors.lastname: Liik
authors.forename: Malle
authors.initials: M
authors.lastname: Paris
authors.forename: Liina
authors.initials: L
authors.lastname: Vahter
authors.forename: Katrin
authors.initials: K
authors.lastname: Gross-Paju
authors.forename: Sulev
authors.initials: S
authors.lastname: Haldre
mesh_terms: D000328:Adult; D002928:Cinanserin / Q000031:analogs & derivatives*; D015897:Comorbidity; D003863:Depression / Q000000981:diagnostic imaging* / Q000453:epidemiology; D004827:Epilepsy / Q000000981:diagnostic imaging* / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D019275:Radiopharmaceuticals; D050486:Serotonin Plasma Membrane Transport Proteins / Q000378:metabolism*; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods; D055815:Young Adult
chemical_list: C413491:2-((2-((dimethylamino)methyl)phenyl)thio)-5-iodophenylamine; D019275:Radiopharmaceuticals; D050486:Serotonin Plasma Membrane Transport Proteins; D002928:Cinanserin