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Li Ren

11 papers in the library · 114 citations · publishing 2018-2026

Papers

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Bolus versus Continuous Infusion of Esketamine for Prevention of Postpartum Depression After Caesarean Delivery: A Randomized, Double-Blind, Controlled Trial.

Drug Design, Development and Therapy 2026 Jie Yang, Qiqi Yan, Ting Zhang et al.

Esketamine is increasingly being applied for preventing postpartum depression (PPD). However, clinical protocols for this application are inconsistent, particularly concerning the route of administration. The aim was to determine whether esketamine bolus administration differed from continuous infusion in terms of preventing PPD. A total of 503 subjects without prenatal depression undergoing...

Intraoperative Esketamine and Postpartum Depression Among Women With Cesarean Delivery: A Randomized Clinical Trial

Obstetric Anesthesia Digest November 18, 2025 Li Ren, Ting Zhang, B Zou et al. 1 citation

( JAMA Network Open . 2025;8(2):e2459331. doi: 10.1001/jamanetworkopen.2024.59331) Postpartum depression (PPD) is a widespread condition affecting about 17.7% of new mothers globally, with an even higher incidence of 21.4% reported in China. Cesarean birth (CB) appears to increase the risk of developing PPD compared to vaginal births. Given the growing recognition of esketamine, a derivative of...

Inhibition of SERT and NMDAR synergistically confers rapid antidepressant effects of ketamine

National Science Review September 5, 2025 Huoqing Luo, Ming Chen, Yingjie Ning et al. 1 citation

-methyl-d-aspartate receptor (NMDAR) blockade is crucial for the rapid antidepressant effects of ketamine, the involvement of other mechanisms remains contentious, particularly regarding the role of serotonin, a key neurotransmitter in the target of traditional antidepressants. Here, we demonstrate that ketamine elevates serotonin levels by inhibiting the serotonin transporter (SERT). A...

[Esketamine Alleviates Postoperative Depressive Symptoms in Frail Elderly Patients Undergoing Thoracoscopic Radical Resection of Lung Cancer: A Randomized Double-Blind Controlled Trial].

Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition March 20, 2025 Congli Zhang, Yan Yan, Junjie Ma et al. 1 citation

To investigate the effect of esketamine on postoperative depression in frail elderly patients undergoing thoracoscopic radical resection of lung cancer. A total of 88 frail elderly patients undergoing elective thoracoscopic radical resection of lung cancer were assigned randomly (using a randomization table) and in a double-blind way (blinding applies to both researchers and patients) to an...

Esketamine-mediated alleviation of electroconvulsive shock-induced memory impairment is associated with the regulation of mGluR5 in depressive-like rats.

Pharmacology, biochemistry, and behavior March 1, 2025 Yiwei Shen, Wei Ran, Dawei Liu et al. 2 citations

Electroconvulsive therapy (ECT) is recognized as one of the most efficacious interventions for depression. However, it is associated with impairments in learning and memory functions. Ketamine has demonstrated potential in mitigating cognitive deficits. Notably, the metabotropic glutamate system is hypothesized to play a pivotal role in cognitive process regulation. Nevertheless, the...

Intraoperative Esketamine and Postpartum Depression Among Women With Cesarean Delivery: A Randomized Clinical Trial.

JAMA Network Open February 3, 2025 Li Ren, Ting Zhang, Bingyu Zou et al. 13 citations

Esketamine has been found to reduce the incidence of postpartum depression (PPD) in randomized clinical trials. However, current evidence from randomized clinical trials does not reflect esketamine's efficacy in clinical settings. To assess the clinical efficacy of intraoperative esketamine administration for preventing PPD among women who underwent cesarean delivery. This randomized clinical...

The mechanistic basis for the rapid antidepressant-like effects of ketamine: From neural circuits to molecular pathways.

Progress in Neuro-psychopharmacology and Biological Psychiatry December 1, 2023 Li Ren

Conventional antidepressants that target monoaminergic receptors require several weeks to be efficacious. This lag represents a significant problem in the currently available treatments for serious depression. Ketamine, acting as an N-methyl-d-aspartate receptor antagonist, was shown to have rapid antidepressant-like effects, marking a significant advancement in the study of mood disorders....

Subanesthetic dose of ketamine for the antidepressant effects and the associated cognitive impairments of electroconvulsive therapy in elderly patients—A randomized, double‐blind, controlled clinical study

Brain and Behavior December 11, 2020 Lei Zou, S. Min, Qibin Chen et al.

We previously confirmed that low‐dose ketamine, as an adjunctive anesthetic for electroconvulsive therapy (ECT) in adult patients with depression, accelerates the effects of ECT and reduces the ECT‐induced learning and memory deficits. This study explored the efficacy and safety of low‐dose ketamine in elderly patients with depression.

Effects of Low-Dose Ketamine on the Antidepressant Efficacy and Suicidal Ideations in Patients Undergoing Electroconvulsive Therapy.

Journal of ECT January 6, 2020 Qibin Chen, Jun Dong, Jie Luo et al. 22 citations

OBJECTIVES It remains controversial whether a subanesthetic dose of ketamine could modulate the antidepressant effect of electroconvulsive therapy (ECT) in patients with major depressive disorder. We investigated the effect of ketamine on accelerating the antidepressant efficacy of ECT. METHODS One hundred twenty-seven patients with major depressive disorder were included in this randomized,...

Intermittent administration of low dose ketamine can shorten the course of electroconvulsive therapy for depression and reduce complications: A randomized controlled trial.

Psychiatry Research November 1, 2019 Jun Dong, S. Min, H. Qiu et al. 26 citations

This study aimed to investigate the efficacy and safety of intermittent low-dose ketamine on improving the efficacy of ECT. Patients diagnosed with Major Depressive Disorder (MDD) (n = 134) were randomized into 3 groups: routine ECT group (group E, n = 45); repeated ketamine-assisted ECT group (group RK, n = 43), and intermittent ketamine-assisted ECT group (group IK, n = 46). Patients in group...

Ketamine in electroconvulsive therapy for depressive disorder: A systematic review and meta-analysis.

Journal of Psychiatric Research September 1, 2018 Li Ren, Jie Deng, S. Min et al. 48 citations

Electroconvulsive therapy (ECT) is one of the most effective treatments for depressive disorder. Sub-anesthetic dose of ketamine exerts a rapid and robust antidepressive effect. However, it is still unclear whether ketamine usage in ECT is efficacious as an antidepressant. We aimed to conduct a systematic review and meta-analysis on the effects of ketamine in ECT among patients with depressive...