Abstract Title:

Levels of nitric oxide, asymmetric dimethyl arginine, symmetric dimethyl arginine,and L-arginine in patients with obsessive-compulsive disorder.

Abstract Source:

Turk J Med Sci. 2016 ;46(3):775-82. Epub 2016 Apr 19. PMID: 27513255

Abstract Author(s):

Enver Demirel Yilmaz, Mehmet Fatih Üstündağ, Ali Görkem Gençer, Yüksel Kivrak, Özge Ünal, Mustafa Bilici

Article Affiliation:

Enver Demirel Yilmaz


BACKGROUND/AIM: We aimed to investigate and compare to healthy controls the variations in the levels of nitric oxide (NO), asymmetric dimethyl arginine (ADMA), symmetric dimethyl arginine (SDMA), and L-arginine levels in patients with obsessive-compulsive disorder (OCD).

MATERIALS AND METHODS: We enrolled 30 patients with OCD and 30 healthy controls in the study consecutively. Diagnostic interviews of all participants were conducted with the Structured Clinical Interview for Axis I Disorders (SCID-I), and sociodemographic data of the participants were recorded. Patients scoring 10 points or more on the Yale-Brown Obsessive-Compulsive Scale were enrolled in the study.

RESULTS: The NO levels of patients with OCD were increased compared to the control group, but the increase was not statistically significant (P>0.05). However, patients with OCD had significantly lower levels of ADMA, SDMA, and L-arginine compared with the controls (P<0.001).

CONCLUSION: We found a significant decrease in ADMA, SDMA, and L-arginine as NO inhibitors between the groups, possibly because of an increase in NO. However, the insignificant increase in NO suggests that ADMA, SDMA, and L-arginine play direct and potentially important roles in OCD biology.

Study Type : Human Study

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