Abstract:Objective To investigate the effects of combined treatment with quetiapine and magnesium valproate on both subjective and objective sleep quality and interleukin-6 (IL-6) receptor mRNA expression in patients with bipolar disorder.Methods A total of 106 patients with bipolar disorder treated at Taiyuan Psychiatric Hospital from March 2022 to February 2024 were randomly divided into two groups, each with 53 cases. The control group received magnesium valproate treatment, while the observation group received a combination of quetiapine and magnesium valproate. The treatment outcomes, sleep quality, and IL-6 receptor mRNA expression levels were compared between the groups before and after treatment.Results The overall effective rate of treatment in the observation group was 90.6%, significantly higher than that in the control group (69.8%; P < 0.05). The observation group demonstrated a significantly greater reduction in Pittsburgh Sleep Quality Index (PSQI) scores from baseline to post-treatment compared to the control group (P < 0.05). Furthermore, the changes in total sleep time, sleep efficiency, sleep latency, REM latency, and number of awakenings before and after treatment were all more pronounced in the observation group than in the control group (P < 0.05). Additionally, the changes in relative IL-6 receptor mRNA expression from pre- to post-treatment were greater in the observation group than in the control group (P < 0.05).Conclusion The combination of quetiapine and magnesium valproate significantly improves both subjective and objective sleep quality and reduces IL-6 receptor mRNA expression in patients with bipolar disorder, showing superior efficacy compared to treatment with magnesium valproate alone.