https://emsenn.net/tags/anthraquinones/ Recent content in Anthraquinones on emsenn.net Hugo en-us Thu, 02 Apr 2026 00:00:00 +0000 https://emsenn.net/library/domains/science/domains/medicine/domains/pharmacology/terms/emodin/ Thu, 02 Apr 2026 00:00:00 +0000 https://emsenn.net/library/domains/science/domains/medicine/domains/pharmacology/terms/emodin/ <p>Emodin (1,3,8-trihydroxy-6-methylanthraquinone) is a naturally occurring anthraquinone found in the roots and rhizomes of several medicinal plants, including <a href="../../../../biology/domains/botany/terms/japanese-knotweed.md" class="link-internal">Japanese knotweed</a> (<em>Reynoutria japonica</em>), rhubarb (<em>Rheum</em> spp.), cascara sagrada (<em>Frangula purshiana</em>), senna (<em>Senna alexandrina</em>), and aloe (<em>Aloe vera</em>). It is one of the principal bioactive compounds in the Traditional Chinese Medicine herb <a href="../../traditional-chinese-medicine/terms/hu-zhang.md" class="link-internal">Hu Zhang</a> and in Da Huang (rhubarb root), where it contributes to their purgative and heat-clearing actions.</p> <h2 id="traditional-use">Traditional use</h2> <p>In TCM, emodin-containing herbs are classified as bitter and cold — herbs that drain heat, dry dampness, and promote downward movement (purgation). Rhubarb root (Da Huang) is the archetypal &ldquo;drastic purgative&rdquo; in the Chinese materia medica, used for constipation with heat signs, abdominal distension, and blood stasis. Japanese knotweed rhizome (Hu Zhang) shares these properties. The laxative action of both herbs is attributable primarily to their anthraquinone content, of which emodin is a major component.</p>