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Anti-lipid Potential of Drimys brasiliensis.

ABSTRACT: The traditional use of Drimys brasiliensis Miers (Winteraceae) in the south of Brazil to reduce cholesterol has not been described in scientific literature.To verify the hypocholesterolemic effects of D. brasiliensis using rats as animal model.The bark of D. brasiliensis was extracted with water with further lyophilization and was subjected to phytochemical analysis by high-performance liquid chromatography (HPLC), and free radical scavenging activities by 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay to determine antioxidant potential. The hypocholesterolemic activity was determined in male Wistar rats treated with 100 and 250 mg/kg/day extract concomitantly fed a hypercaloric diet, over 20 days (prevention assay). In the treatment assay, rats were fed a hypercaloric diet for 40 days and received the extract (100 mg/kg/day) from day 20.In this research, we found that the extract of the bark of D. brasiliensis was able to reduce the triglycerides significantly and reduce total cholesterol at doses 100 and 250 mg/kg/day and both administration regimens (prevention and treatment) in rats treated with the extract and hypercaloric diet. The extract showed strong antioxidant properties (DPPH assay), probably responsible by hypocholesterolemic activity of the plant. By HPLC, we detected catechin (1.34%), epicatechin (3.48%), rutin (0.86%), caffeic acid (0.45%), and ferulic acid (0.84%) in D. brasiliensis extract.We confirm the popular use of the plant to reduce of cholesterol.The extract of the bark of Drimys brasiliensis was able to reduce the triglycerides significantly and reduced total cholesterol at doses 100 and 250 mg/kg/day and both administration regimens (prevention and treatment) in rats treated with the extract and hypercaloric dietThe extract showed strong antioxidant properties (1,1-diphenyl-2-picrylhydrazyl assay), probably responsible by hypocholesterolemic activity of the plantThe extracts present catechin (1.34%), epicatechin (3.48%), rutin (0.86%), caffeic acid (0.45%), and ferulic acid (0.84%)The plant can be used to cholesterol reduction. Abbreviations used: HPLC: High-performance liquid chromatography; PDA: Photodiode array detector; RS: Reference substances; DPPH: 1,1-diphenyl-2-picrylhydrazyl; VCEAC: Vitamin C equivalent antioxidant capacity.

SUBMITTER: Merotto J

PROVIDER: S-EPMC5538182 | biostudies-other | 2017 Jul

REPOSITORIES: biostudies-other

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Project description:Hookworm is one type of soil-transmitted helminth, which could exert an anti-inflammatory effect in human or animal host, which provides a beneficial possibility for the discovery of inflammatory-related disease interventions. The identification of hookworm-derived anti-inflammatory molecules is urgently needed for future translational research. The emergence of metabolomics has become a powerful approach to comprehensively characterize metabolic alterations in recent times. Herein, excretory and secretory products (ESPs) were collected from cultured adult worm, while small intestinal contents were obtained from Nippostrongylus brasiliensis (N. brasiliensis, Nb)-infected mice. Through ultra-high-performance liquid chromatography coupled with mass spectrometry (UHPLC-MS) platform, metabolomics analysis was used to explore the identification of anti-inflammatory molecules. Out of 45 differential metabolites that were discovered from ESPs, 10 of them showed potential anti-inflammatory properties, which could be subclassed into amino acids, furanocoumarins, linear diarylheptanoids, gamma butyrolactones, and alpha-keto acids. In terms of intestinal contents that were derived from N. brasiliensis-infected mice, 14 out of 301 differential metabolites were discovered to demonstrate anti-inflammatory effects, with possible subclassification into amino acids, benzylisoquinolines, quaternary ammonium salts, pyrimidines, pregnane steroids, purines, biphenyls, and glycerophosphocholines. Furthermore, nine of the differential metabolites appeared both in ESPs and infected intestinal contents, wherein four were proven to show anti-inflammation properties, namely, L-glutamine, glutamine (Gln), pyruvate, and alanine-Gln (Ala-Gln). In summary, we have provided a method for the identification and analysis of parasite-derived molecules with potential anti-inflammatory properties in the present study. This array of anti-inflammatory metabolites could provide clues for future evaluation and translational study of these anti-inflammatory molecules.

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Anti-lipid Potential of Drimys brasiliensis.

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