Abstract:
:We have studied fasting plasma tryptophan (TRP) levels and tryptophan/large neutral amino acid (TRP/LNAA) ratios in 12 patients with obsessive-compulsive disorder (OCD) and 12 patients with OCD and a coexisting current diagnosis of major depressive disorder (OCD-MDD). Assessments were made at baseline and after 6 weeks of treatment with fluvoxamine. OCD-MDD patients had significantly lower baseline TRP levels and TRP/LNAA ratios than OCD patients. After 6 weeks of fluvoxamine treatment, OCD-MDD patients had significant increases in plasma TRP and TRP/LNAA ratio, whereas OCD patients had non-significant decreases. Our data suggest that a major depressive syndrome could be a state variable affecting the changes in plasma TRP and TRP/LNAA ratio in OCD patients.
journal_name
Psychiatry Resjournal_title
Psychiatry researchauthors
Bellodi L,Erzegovesi S,Bianchi L,Lucini V,Conca R,Lucca Adoi
10.1016/s0165-1781(96)02961-7subject
Has Abstractpub_date
1997-03-03 00:00:00pages
9-15issue
1eissn
0165-1781issn
1872-7123pii
S0165178196029617journal_volume
69pub_type
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