Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
775.0±60.0 °C at 760 mmHg
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Hepatic lipid accumulation and oxidative stress (OS) lead to non-alcoholic fatty liver disease (NAFLD). Thus, we hypothesized that antihyperlipidemic and antioxidant activities of niga-ichigoside F1 (NI) would ameliorate events leading to NAFLD. Lanbuzheng (Geum japonicum Thunb. var. chinense), a type of wild vegetable found in Southwest China, was used to extract NI. Male C57BL/6J mice were fed a standard diet (Con) or a high-fat diet (HFD) (denoted as diet) with or without 40 mg kg-1 NI (defined as treatment) for 12 weeks. Diet-treatment interactions were observed in the final body weight, fat pad mass, respiratory exchange ratio (RER) in the daytime, and energy expenditure during the whole day. Moreover, NI alleviated hepatic steatosis, possibly by significantly interacting with HFD to regulate lipid metabolism genes (including Srebp1c, Acc1, Fasn, Scd1, Cpt1a and Fabp5). We also found significant diet-treatment interactions on superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) activities, and thiobarbituric acid reactive substance (TBARS) levels, as well as the nuclear and cellular Nrf2 protein levels. Significant free fatty acid (FFA)-treatment interactions on Nrf2 nuclear translocation, antioxidant enzymes activities, genes in lipogenesis (Srebp1c, Acc1, Fasn, and Scd1), and fatty acid oxidation (Pparα) and transport (Fabp5 and Cd36) were also detected in 1 mM FFA-treated HepG2 cells with or without 20 μM NI. These beneficial effects of NI on oxidative stress and lipid accumulation were abolished by Nrf2 siRNA. Our data revealed that dietary NI could prevent HFD-induced hepatic steatosis, possibly via interacting with HFD to activate Nrf2 nuclear translocation to maintain a redox status, thus regulating lipid metabolism genes expressions.
Niga-ichigoside F1 ameliorates high-fat diet-induced hepatic steatosis in male mice by Nrf2 activation
Shu-Fang Xia 1, Jing Shao, Shu-Ying Zhao, Yu-Yu Qiu, Li-Ping Teng, Wei Huang, Shan-Shan Wang, Xiang-Rong Cheng, Yu-Yu Jiang
2018 Feb 21
Eleven compounds were isolated from Poraqueiba sericea stems and identified as niga-ichigoside-F1 (1), trachelosperoside B1 (2), 4-epi-niga-ichigoside (7), 19α-hydroxyasiatic acid (3), myrianthic acid (4), hyptatic acid (5), trachelosperogenin B (6), arjunolic acid (8), and trachelosperogenin E (9), secologanoside (10) and secoxyloganin (11). Compounds 1-11 were tested for their antileishmanial activities against Leishmania infantum promastigotes, 1-6 and 8-11 were tested for their cytotoxic activities on fibroblasts, 1-3, 5-6, 8-11 were evaluated for their anti-elastase and anti-acetylcholinesterase assays activities by a spectrophotometric method and 1-2, 5 and 7-10 were tested using bioautography for their β-glucosidase. No antileishmanial activity was detected; compounds 1, 2 and 11 showed a moderate cytotoxic activity with IC50 17.7, 20.5 and 10.9 μg/mL, respectively; compounds 2, 8, 9 and 10 gave a percentage of inhibition ranging from 13 to 16% (at 50 μg/mL) and compounds 1 and 2 showed an inhibition zone on β-glucosidase and anti-acetylcholinesterase assays.
Icacinaceae; Poraqueiba sericea; secoiridoids; triterpenes.
Biological activities of triterpenoids from Poraqueiba sericea stems
Ilhem Zebiri 1, Mohamed Haddad 2, Laurent Duca 3, Michel Sauvain 2, Lucie Paloque 4 5, Billy Cabanillas 6, Elsa Rengifo 6, Jean-Bernard Behr 1, Laurence Voutquenne-Nazabadioko 1
Here, we evaluate the anti-inflammatory and wound-healing effects of methanolic crude extract obtained from aerial parts (leaves and branches) of Rubus imperialis Chum. Schl. (Rosaceae) and the pure compound niga-ichigoside F1. Anti-inflammatory activity was determined in vivo and in vitro, and the healing effect was evaluated in surgical lesions in mice skin. The 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) assay and H2O2-induced oxidative stress were used to determine antioxidant activity. The efferocytosis activity was also determined. The data obtained show that the extract of R. imperialis promote reduction in the inflammatory process induced by lipopolysaccharide (LPS) or carrageenan in the air pouch model; the effects could be reinforced by nitric oxide reduction in LPS-stimulated neutrophils, and an increase in the efferocytosis. The extract showed wound healing property in vitro and in vivo, scavenging activity for DPPH, and cytoprotection in the H2O2-induced oxidative stress in L929 cells. In addition, the compound niga-ichigoside F1 was able to reduce the NO secretion; however, it did not present wound-healing activity in vitro. Together, the data obtained point out the modulatory actions of R. imperialis extract on leukocyte migration to the inflamed tissue, the antioxidant, and the pro-resolutive activity. However, the R. imperialis anti-inflammatory activity may be mediated in parts by niga-ichigoside F1, and on wound healing do not correlated with niga-ichigoside F1.
Fibroblast; Inflammation; Macrophage; Wound healing.
Rubus imperialis (Rosaceae) extract and pure compound niga-ichigoside F1: wound healing and anti-inflammatory effects
Talita Dacroce Tonin 1, Liliani Carolini Thiesen 1, Maria Luisa de Oliveira Nunes 1, Milena Fronza Broering 1, Marcos Paulo Donato 1, Marina Jagielski Goss 1, Marcel Petreanu 1, Rivaldo Niero 1, Isabel Daufenback Machado 1, Jose Roberto Santin 2