Antitussive Activity of the Water-Extracted Carbohydrate Polymer from Terminalia chebula on Citric Acid-Induced Cough

作者：Nosalova Gabriela; Jurecek Ludovit; Chatterjee Udipta Ranjan; Majee Sujay Kumar; Nosal Slavomir; Ray Bimalendu^*

来源：Evidence-Based Complementary and Alternative Medicine, 2013, 2013: 650134.

DOI：10.1155/2013/650134

Terminalia chebula, a medicinal plant, is widely used in the management of various diseases. As the water extract of its dried ripe fruit is a frequently used preparation, we decided to look for bioactive polysaccharide in this extract. We demonstrate that the obtained polysaccharide fraction, CP, contained a highly branched arabinogalactan protein having a (1 -> 3)-, (1 -> 6)- and (1 -> 3, 6)-linked beta-D-Galp together with (1 -> 5)- and (1 -> 3)-linked alpha-L-Araf and nonreducing end units of alpha-L-Araf. This polymer possesses strong antitussive property. Our results showed that the number of citric acid-induced cough efforts decreased significantly after the oral application of polysaccharide fraction in a dose of 50 mg kg(-1) body weight. Its antitussive efficacy was higher than cough suppressive effect of standard drug codeine. Therefore, traditional aqueous extraction method provides a major polysaccharide, which induces a pharmacological effect: this could represent an attractive approach in phytotherapeutic managements.

• 出版日期2013