Therapeutic effects on cancer of the active ingredients in rhizoma paridis

Cancer is a major threat to human health, with high mortality and a low cure rate, continuously challenging public health worldwide. Extensive clinical application of traditional Chinese medicine (TCM) for patients with poor outcomes of radiotherapy and chemotherapy provides a new direction in anticancer therapy. Anticancer mechanisms of the active ingredients in TCM have also been extensively studied in the medical field. As a type of TCM against cancer, Rhizoma Paridis (Chinese name: Chonglou) has important antitumor effects in clinical application. The main active ingredients of Rhizoma Paridis (e.g., total saponins, polyphyllin I, polyphyllin II, polyphyllin VI, and polyphyllin VII) have shown strong antitumor activities in various cancers, such as breast cancer, lung cancer, colorectal cancer, hepatocellular carcinoma (HCC), and gastric cancer. Rhizoma Paridis also has low concentrations of certain other active ingredients with antitumor effects, such as saponins polyphyllin E, polyphyllin H, Paris polyphylla-22, gracillin, and formosanin-C. Many researchers have studied the anticancer mechanism of Rhizoma Paridis and its active ingredients. This review article describes research progress regarding the molecular mechanism and antitumor effects of the active ingredients in Rhizoma Paridis, suggesting that various active ingredients in Rhizoma Paridis may be potentially therapeutic against cancer.

A Traditional Chinese Medicine for the Treatment of Endometrial Hyperplasia via Regulating the HPO Axis in Rats

Dysfunctional uterine bleeding, accompanied by endometrial hyperplasia (EH), is a common gynecological disease that seriously affects female physical and mental health. Some drugs have been prompted to cure the disease, but most medications have certain side effects and limitations. In the present study, we demonstrated an unexploited Chinese traditional medicine, a combination of Saururus chinensis, Celosia cristata, and Spatholobus suberectus (SCS), which could be used for the treatment of EH and associated complications in rats. We identified the active components from the three Chinese herbs via thin-layer chromatography and high-performance liquid chromatography methods. In addition, serum biochemical indexes and histologic section results found that acute high-dose SCS exerted no adverse impacts on the rats. We then showed that SCS shortened coagulation time (p=0.018) and degree of swelling (p=0.021) on rats at 30 min compared to blank control. Further studies proved that recovered endometrial thickness was associated with the modulation of four hormones (follicle-stimulating hormone, luteinizing hormone, estrogen, and progesterone). Specifically, follicle-stimulating hormone and progesterone contents increased gradually with time, and estrogen was decreased, whereas luteinizing hormone content was returned to normal after a short-term elevation (p < 0.05). Besides, SCS increased uterine endometrium's mRNA expression levels of matrix metalloproteinase-1 (p < 0.001) and tissue inhibitor of matrix metalloproteinase-1 (p < 0.001), promoting the repair of proliferating endometrium in the rats. Collectively, our study indicates that SCS harbors a profoundly curative effect on the treatment of EH and relative complications and uncovers the mechanism at molecular and gene expression levels.