Cnidium

What is Cnidium?

Cnidium is a plant species widely distributed across Eurasia from the family of umbellifers (Apiaceae). Botanically, various species are grouped under the name Cnidium – such as Cnidium dubium, Cnidium silaifolium, or Cnidium monnieri, the latter of which is of particular importance in traditional Asian healing practices. The plant is characterized by its pinnate leaves and striking, umbrella-like clusters of white to pale pink flowers, which attract numerous insects, especially in summer. It prefers to grow in dry meadows, on embankments, and along open forest edges and has become quite rare in parts of Central Europe, which is why it is a protected species. Traditionally, various parts of Cnidium were used in folk medicine – especially the seeds, which are rich in essential oils and secondary plant compounds. In Traditional Chinese Medicine (TCM), Cnidium monnieri (Chinese: She Chuang Zi) in particular is a well-known carrier of active compounds that has been attributed a wide range of applications – from skin conditions to strengthening the sexual system. In Western naturopathy, the plant is less well known so far but is increasingly attracting the interest of research and phytotherapy.

What health benefits does Cnidium offer?

Depending on the species and form of application, Cnidium is attributed a range of potential effects. Modern research – particularly with regard to Cnidium monnieri – has examined some of these applications more closely:

  • Antimicrobial effect: Studies show that extracts from various Cnidium plant species exhibit antimicrobial properties against certain bacteria and fungi (1,2,3).
  • Antioxidant properties: Various active compounds contained in the plants could potentially have antioxidant effects (1,4,5).
  • Anticarcinogenic effect: Studies suggest that Cnidium plant species have partially cancer-inhibiting effects by inducing apoptosis and cell cycle arrest in HT-29 cells (6,7).
  • Anti-inflammatory properties: Investigations link active compounds of Cnidium with anti-inflammatory effects (6,8,9).
  • Skin care and regeneration: In TCM, Cnidium is used externally for eczema, itching, and fungal infections – especially in combination with other herbs.
  • Plant compound osthole: The active compound osthole contained in Cnidium is the focus of many investigations and is being studied, among other things, for its anti-inflammatory effect (10).

How does Cnidium work in the body?

The main effect of Cnidium is attributable to the secondary plant compounds it contains, specifically the coumarin derivative osthole, which is present in relatively high concentrations in the seeds. Other constituents such as flavonoids, terpenes, and essential oils can additionally support antioxidant or germ-inhibiting effects (1–11).

Are there risks or side effects?

  • High concentration of individual active compounds: Especially with concentrated extracts (e.g., osthole), side effects such as skin irritation or light sensitivity can occur – particularly with external application in high doses.
  • Not recommended for pregnant women: In TCM, Cnidium monnieri is not used during pregnancy. The available study data in this case is not yet sufficiently conclusive, so from a research perspective as well, its use should be avoided.
  • Interactions possible: Due to the diverse mechanisms of action, interactions with medications could occur – especially with preparations that act on the central nervous system or hormone balance.

Conclusion

The Cnidium plant is a traditional medicinal plant with a long history of use in Asia and Europe. Cnidium monnieri in particular finds diverse applications in Chinese medicine. Initial studies confirm various properties – specifically regarding the active compound osthole. As with all medicinal plants: use should be deliberate, possible risks should be observed, and a physician should be consulted.

Sources:

  1. Lee, M. J., & Kang, M. K. (2020). Analysis of the Antimicrobial, Cytotoxic, and Antioxidant Activities of Cnidium officinale Extracts. Plants (Basel, Switzerland), 9(8), 988. https://doi.org/10.3390/plants9080988
  2. Jung, D.-S. (2007). Antimicrobial activity of the aerial part (leaf and stem) extracts of Cnidium officinale Makino, a Korean medicinal herb. Microbiology and Biotechnology Letters, 35(1), 30–35. http://mbl.or.kr/journal/view.html?doi=
  3. Kim TY, Kwon HC, Lee SY, et al. Antibacterial Activity of Senkyunolide A Isolated from Cnidium Officinale Extract. Journal of Cosmetic science... 2020 Nov-Dec;71(6):377-383. PMID: 33413782.
  4. Jeong, J. B., Ju, S. Y., Park, J. H., Lee, J. R., Yun, K. W., Kwon, S. T., Lim, J. H., Chung, G. Y., & Jeong, H. J. (2009). Antioxidant activity in essential oils of Cnidium officinale makino and Ligusticum chuanxiong Hort and their inhibitory effects on DNA damage and apoptosis induced by ultraviolet B in mammalian cell. Cancer epidemiology, 33(1), 41–46. https://doi.org/10.1016/j.canep.2009.04.010
  5. Kim, H.-j., Mun, J.-S., Oh, S.-H., & Kim, J.-H. (2024). Antioxidant and longevity-related properties of the ethyl acetate fraction of Cnidium officinale Makino in Caenorhabditis elegans. Preventive Nutrition and Food Science, 29(3), 311–320. https://doi.org/10.3746/pnf.2024.29.3.311
  6. de la Cruz, J., Kim, D.-H., & Hwang, S. G. (2014). Anti-cancer effects of Cnidium officinale Makino extract mediated through apoptosis and cell cycle arrest in the HT29 human colorectal cancer cell line. Asian Pacific Journal of Cancer Prevention, 15(13), 5117–5122. http://dx.doi.org/10.7314/APJCP.2014.15.13.5117
  7. Khan, S. A., & Lee, T. K. W. (2022). Network-Pharmacology-Based Study on Active Phytochemicals and Molecular Mechanism of Cnidium monnieri in Treating Hepatocellular Carcinoma. International journal of molecular sciences, 23(10), 5400. https://doi.org/10.3390/ijms23105400
  8. Ningsih, F. N., Okuyama, T., To, S., Nishidono, Y., Okumura, T., Tanaka, K., Ikeya, Y., & Nishizawa, M. (2020). Comparative Analysis of Anti-inflammatory Activity of the Constituents of the Rhizome of Cnidium officinale Using Rat Hepatocytes. Biological & pharmaceutical bulletin, 43(12), 1867–1875. https://doi.org/10.1248/bpb.b20-00416
  9. Tran, H. N. K., Cao, T. Q., Kim, J. A., Youn, U. J., Kim, S., Woo, M. H., & Min, B. S. (2018). Anti-inflammatory activity of compounds from the rhizome of Cnidium officinale. Archives of pharmacal research, 41(10), 977–985. https://doi.org/10.1007/s12272-018-1048-9
  10. Zhou, Y., Du, Z., Wu, Q., Guo, M., Chen, Z., Sun, C., Li, X., Zou, Y., Zheng, Z., Chen, P., Cho, W. J., Cho, Y. C., Chattipakorn, N., Wang, Y., Liang, G., & Tang, Q. (2024). Discovery of novel osthole derivatives exerting anti-inflammatory effect on DSS-induced ulcerative colitis and LPS-induced acute lung injury in mice. European journal of medicinal chemistry, 268, 116252. https://doi.org/10.1016/j.ejmech.2024.116252
  11. Li, R., Dang, S., Yao, M., Zhao, C., Zhang, W., Cui, J., Wang, J., & Wen, A. (2020). Osthole alleviates neuropathic pain in mice by inhibiting the P2Y1-receptor-dependent JNK signaling pathway. Aging, 12(9), 7945–7962. https://doi.org/10.18632/aging.103114