Journal
DRUG DESIGN DEVELOPMENT AND THERAPY
Volume 15, Issue -, Pages 2885-2897Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/DDDT.S310263
Keywords
Anoectochilus roxburghi; polysaccharide; CCl4-induced hepatic damage; hepatoprotective effects; rat
Categories
Funding
- Social Development Project of Fuzhou Science and Technology Bureau, P. R. C. [2019-SZ-42]
- Special Project Scientific Research of the Fujian Provincial Department of Finance, China [2019 B029]
- Natural Fund Project of Fujian Province, China [2020J011155, 2020J01623]
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The study explored the hepatoprotective effects of Anoectochilus roxburghii polysaccharide (ARPS) on CCl4-induced liver injury in rats. ARPS showed antioxidant properties by reducing liver damage indicators, increasing glutathione content, and improving liver pathology.
Purpose: The polysaccharide of Anoectochilus roxburghii (wall.) Lindl. (ARPS) is one of its important active ingredients. Hepatoprotective effects of ARPS on rat liver injury induced by CCl4 were studied. Methods: ARPS was extracted using the ultrasonic method and successfully purified by high-speed counter-current chromatography (HSCCC) with a two-phase aqueous system composed of 12.5% PEG 1000-20% K2HPO4:KH2PO4 (1:1). The HSCCC conditions were optimized, and the structure of ARPS was characterized. The hepatoprotective effects of ARPS against CCl4-induced chronic hepatic injury in SD rats were evaluated. Results: The results showed that ARPS was a water-soluble polysaccharide with a molecular weight of 28,518 Da. It was composed of mannose, ribose, glucose, and arabian sugar; its monosaccharide molar ratio was glucose:ribose:arabinose:mannose = 54.24:13.20:1.09:1.00. The purity of ARPS was determined by HPLC to be 96.93%. The intervention effects of ARPS on CCl4-induced hepatic damage model in rats showed that ARPS could effectively reduce the activity of alanine amino transferase and aspartate amino transferase, decrease the content of malondialdehyde and nitric oxide synthesis, and increase the content of glutathione. Pathology revealed that liver plate order, liver cell degeneration, and edema were improved; inflammatory cell infiltration was not observed after ARPS intervention. Conclusion: ARPS had the function of antioxidant for protecting CCl(4)induced injured liver, and the mechanisms were related to anti-lipid peroxidation, which could eliminate oxygen-free radicals and protect liver cells from attacks by free radicals.
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