title: S-adenosylmethionine blood levels in major depression: changes with drug treatment.
abstract: BACKGROUND
  The relationship between plasma levels of S-adenosylmethionine (SAMe), an endogenous methyl donor, and clinical response were studied in patients with a DSM-III-R diagnosis of major depression.
  
  
  METHODS
  A double-blind randomized protocol comparing oral SAMe with oral desipramine, involving a total of 26 patients, was employed.
  
  
  RESULTS
  At the end of the 4-week trial, 62% of the patients treated with SAMe and 50% of the patients treated with desipramine had significantly improved. Regardless of the type of treatment, patients with a 50% decrease in their Hamilton Depression Scale (HAM-D) score showed a significant increase in plasma SAMe concentration.
  
  
  CONCLUSIONS
  The significant correlation between plasma SAMe levels and the degree of clinical improvement in depressed patients regardless of the type of treatment suggests that SAMe may play an important role in regulating mood.
authors.affiliation: University of California, Irvine Medical Center, Orange 92668.
authors.forename: K M
authors.initials: KM
authors.lastname: Bell
authors.forename: S G
authors.initials: SG
authors.lastname: Potkin
authors.forename: D
authors.initials: D
authors.lastname: Carreon
authors.forename: L
authors.initials: L
authors.lastname: Plon
mesh_terms: D000328:Adult; D003866:Depressive Disorder / Q000097:blood* / Q000175:diagnosis / Q000188:drug therapy*; D003891:Desipramine / Q000097:blood / Q000494:pharmacology / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008716:Methionine Adenosyltransferase / Q000378:metabolism; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D012436:S-Adenosylmethionine / Q000097:blood* / Q000378:metabolism / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D012436:S-Adenosylmethionine; D008716:Methionine Adenosyltransferase; D003891:Desipramine