Clinical efficacy of turtle shell decocted pills for endometriosis and their influence on cellular immunity

To explore the therapeutic efficacy of the levonorgestrel-releasing intrauterine system combined with turtle shell decocted pills for endometriosis and their effect on cellular immune function.

Clinical data of 118 patients with endometriosis admitted to Taizhou First People's Hospital from January 2019 to January 2020 were retrospectively analyzed. The patients were assigned into a single-drug group (n=68) and a combined traditional Chinese medicine group (n=50) according to treatment methods. The single-drug group was treated with the levonorgestrel-releasing intrauterine system, and the combined traditional Chinese medicine group was treated with additional turtle shell decocted pills for three cycles for a total of 12 weeks. Enzyme-linked immunosorbent assay was adopted to measure the concentration of Th1 cytokines (tumor necrosis factor (TNF)-α and interferon (IFN)-γ) and Th2 cytokines (interleukin (IL)-6 and IL-10), and the protein level of programmed cell death 1 (PD-1) and programmed cell death ligand 1 (PD-L1). The levels of serum luteinizing hormone (LH), follicle stimulating hormone (FSH), and estradiol (E2) were compared between the two groups. The response rate of treatment, the control rate of blood pressure and the incidence of adverse reactions were recorded in both groups.

The response rate of treatment in the combined traditional Chinese medicine group was higher than that in the single-drug group (P<0.05). Compared to before treatment, the TNF-α and IFN-γ increased in both groups after treatment, and the expressions were higher in the combined traditional Chinese medicine group than in the single-drug group (all P<0.05). After treatment, the levels of IL-6, IL-10, PD-1, and PD-L1 decreased, and the decreases in the combined traditional Chinese medicine group were greater than those in the single-drug group (all P<0.05). Serum LH, FSH and E2 levels before and after the treatment in the two groups were not statistically different (all P>0.05). The incidence of treatment-related adverse reactions between the two groups of patients was also not statistically different (P>0.05).

Turtle shell decocted pills can increase the clinical efficacy of levonorgestrel-releasing intrauterine system in the treatment of endometriosis, reduce levels of PD-1, and PD-L1 and improve cellular immune function. The pills do not affect the secretion of ovarian hormones or increase adverse reactions.