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47. Anti-inflammatory effects of the plant family Amaryllidaceae.

Author

Nair, Jerald J. and van Staden, Johannes

Subjects
*ANTI-inflammatory agents, *IN vitro studies, *WOUND healing, *NF-kappa B, *NITRIC oxide, *IN vivo studies, *PLANT extracts, *SURVEYS, *SYSTEMATIC reviews, *MEDLINE, *INTERFERONS, *MEDICINAL plants, *AMARYLLIDACEAE, *SEARCH engines, *PAIN management, *OXIDOREDUCTASES, *INFLAMMATION, *ONLINE information services, *TUMOR necrosis factors, *INTERLEUKINS, *PHARMACODYNAMICS
Abstract

Members of the plant family Amaryllidaceae are widely recorded in traditional systems of medicine. Their usage for inflammatory conditions is most prominent, with substantive evidence emerging from several locations around the world. This survey was undertaken to identify such plant taxa, highlight the countries from which they originate and afford details of the ailments against which they are utilized. The undertaking also sought to establish the in vitro and in vivo activities of Amaryllidaceae plant extracts in inflammation-based assays. Furthermore, it set out to unravel the molecular mechanisms used to explain these effects. Over six-hundred articles were identified in searches carried out on SciFinder, Scopus, ScienceDirect, PubMed and Google Scholar. These were condensed to around 170 that formulated the basis of the text. The keyword engaged was 'Amaryllidaceae' in conjunction with 'inflammation' or 'anti-inflammatory', as well as the names of individual genera combined with the latter two. Fifty-one species from thirty-five countries were identified for their uses against inflammation. Twenty-four of such conditions were discernible, of which their applicability in wound healing and pain management was most conspicuous. The utilization of all plant parts was apparent, preparations of which were used primarily via topical application. Extracts of seventy-three species (from twenty-three genera) were examined in nearly thirty inflammation-based assays where their activities in vitro and in vivo were shown to be significant. They were effective in vivo against pain and swelling as well as wound healing, without detriment towards test subjects. The in vitro studies were carried out mainly in mononuclear cells such as macrophages, leukocytes, lymphocytes and neutrophils against which their cytotoxic effects were seen to be minimal. The modes of operation were shown to involve modulation of both pro-inflammatory (such as NF-κB, TNF-α, IL-6, IFN-γ, COX and NO) and anti-inflammatory (such as IL-10) factors. The Amaryllidaceae is showcased as a platform highly conducive towards studies in the inflammation arena. Potent activities in instances were observed via in vitro and in vivo models of study, bolstered by the significant amounts of information emerging from traditional forms of medicine. It is conceivable that the family may yield future anti-inflammatory chemotherapeutics, particularly those related to its alkaloid principles. [Display omitted] • Fifty-one Amaryllidaceae species recorded worldwide for uses against inflammation. • Utilized most for wound healing, pain management and general inflammation purposes. • Extracts of seventy-three species have been examined in inflammation-related assays. • Good activities described from in vitro and in vivo models of study. • Effects manifested via modulation of both pro- and anti-inflammatory factors. [ABSTRACT FROM AUTHOR]

Published
2024
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