Abstract
A naturally occurring plant of the ginger family,
From Volume 52, Issue 3, March 2025 | Pages 206-210
A naturally occurring plant of the ginger family,
Curcuma longa (turmeric) is a plant of the ginger family (zingiberaceae), originating in the tropical regions of south-east India. Curcumin is the component that is responsible for turmeric's familiar, characteristic golden colour. It has been used extensively as a culinary spice and dye, as well as to treat a wide variety of medical issues in Ayurvedic and Chinese traditional medicine for thousands of years.1 In the UK herbal remedy market, turmeric is predominately used as an anti-inflammatory agent and is typically found as a dietary supplement.2
Curcumin, chemically known as 1,7-bis(4-hydroxy-3-methoxyphenyl)-1, 6-heptadiene-3, 5-dione, is the main bioactive component found in the thick underground stems (rhizomes) of Curcuma longa. It is the principal curcuminoid found in the rhizome, alongside three others, namely demethoxycurcumin, bisdemethoxycurcumin and cyclocurcumin.2,3
Curcumin is regarded as having a ‘privileged structure’, owing to its potential to modulate different signalling pathways in the pathological processes of various diseases.4 Curcumin can play a crucial role in inflammation-mediated pro-inflammatory molecular pathways by interrupting nuclear factor-kappa B (NF-κB) signalling at multiple levels. Additionally, it exerts its anti-inflammatory properties by regulating inflammatory signalling pathways by downregulating the activity of cyclo-oxygenase-2 (COX-2) and lipo-oxygenase, and inhibiting the production of pro-inflammatory cytokines such as tumour necrosis factor-alpha (TNF-α) and interleukins -1, -2, -6, -8, and -12.5,6
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