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Abstract Title:

In Vitro Anti-inflammatory Effects of Equisetum arvense Are Not Solely Mediated by Silica.

Abstract Source:

Planta Med. 2018 May ;84(8):519-526. Epub 2017 Dec 4. PMID: 29202511

Abstract Author(s):

Carmen Steinborn, Olivier Potterat, Ulrich Meyer, Rainer Trittler, Sven Stadlbauer, Roman Huber, Carsten Gründemann

Article Affiliation:

Carmen Steinborn

Abstract:

, known as common horsetail, is used for the treatment of inflammatory diseases and is the plant with the highest concentration of silica. Yet it is unknown if the medicinal properties are mediated by its silica content. In the current study, optimal conditions for silica-rich horsetail preparations were identified. Bioactivity of the preparations was analyzedusing flow cytometry-based activity and functionality profiling of primary human lymphocytes as well as cytokine measurement using a classical ELISA technique. Experiments revealed that horsetail preparations suppress activation and proliferation of lymphocytes by an interleukin-2-dependent mechanism. The effect increased with the silica concentration in the decoctions. Lymphocytes' polyfunctionality was also influenced, shown by a downregulation of IFN-. Analytical profiling by HPLC-UV-MS and bioactivity testing revealed relevant immunosuppressive concentrations of a component that has been identified as isoquercitrin. Our results show that both silica and isoquercitrin are active compounds of horsetail preparations.

Study Type : In Vitro Study

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Sayer Ji
Founder of GreenMedInfo.com

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