Indian Journal of PsychiatryIndian Journal of Psychiatry
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Year : 2021  |  Volume : 63  |  Issue : 5  |  Page : 456-461

Serum nitric oxide levels are depleted in depressed patients treated with electroconvulsive therapy

1 Department of Psychiatry, Izmir Bakircay University Faculty of Medicine, Izmir, Turkey
2 Department of Psychiatry, Istanbul Bakirkoy Research and Training Hospital for Psychiatry, Istanbul, Turkey
3 Department of Biochemistry, Ankara Yildirim Beyazit University Medical Faculty, Ankara, Turkey

Correspondence Address:
Murat İlhan Atagun
Department of Psychiatry, Izmir Bakircay University Faculty of Medicine, Gazi Mustafa Kemal Region, Kaynaklar Street, Menemen 35665, Izmir
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_1441_2

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Background: Nitric oxide (NO) is an endogenous substance which has several endocrine functions and may act as neurotransmitter in the brain. High levels of NO may provoke nitrosative stress. Aim: It was aimed to examine serum levels of NO in patients with depressive episodes who were treated with electroconvulsive therapy (ECT) in this study. Methods: The design was a case–control, follow-up study. Patients with depressive episodes (n = 23) and a healthy control group (n = 21) were enrolled. Three serum samples were obtained from the patient group (before ECT, after first and seventh sessions). NO, nitrite, and nitrate levels were examined. Statistical Analysis: Differences between groups were examined with t-test or Mann–Whitney U-test. Longitudinal data were evaluated with Panel Regression Analysis and Kruskal–Wallis Test. Results: Serum levels of NO and nitrite decreased significantly after the seventh session of ECT administration compared to the baseline and first session. Nitrate levels did not differ between the assessments. Conclusions: Reduction of the serum NO and nitrite levels might be a contributing factor for hypertension during the sessions. These findings are reflect the circulating NO levels. Further studies may dissect NO physiology in the brain in mental disorders and potential external effects.



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