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Zhiqiang Zhou

2 papers in the library · 2 citations · publishing 2012-2026

Papers

Prophylactic esketamine to reduce postpartum depression in primiparae: A multicentre, double-blind, randomised clinical trial.

European journal of anaesthesiology January 29, 2026 Tiantian Chu, Xiaoling Peng, Keliang Wan et al. 2 citations

A single dose of esketamine given intravenously around the time of cesarean section, followed by 24 hours of low-dose esketamine in patient-controlled pain relief, reduced the overall incidence of postpartum depression within three months after childbirth in first-time mothers who were not already depressed. The total rate of postpartum depression was 11.59% in the esketamine group versus 20.89% in the saline control group. The benefit was most evident at 7 days postpartum, with no significant differences at 1, 2, or 3 months individually. Mild side effects like dizziness, hallucination, and dissociation occurred in some women. The treatment appears relatively safe and prevents postpartum depression in the short term.

Role of L-arginine/nitric oxide pathway in the antidepressant effects of ketamine

Zhonghua xingwei yixue yu naokexue zazhi September 20, 2012 Guang-Fen Zhang, Nan Wang, Jinyun Shi et al.

In rats subjected to the forced swimming test, ketamine at 10 mg/kg reduced immobility time, an indicator of antidepressant-like effect, and lowered hippocampal nitric oxide (NO) levels. The NO precursor L-arginine increased NO and blocked ketamine's behavioral effect, while the NO synthase inhibitor L-NAME enhanced the effect of a low ketamine dose (3 mg/kg) and also reduced NO. These findings suggest that ketamine's antidepressant action involves suppression of the L-arginine/nitric oxide pathway.