Triterpenoids from Alisma orientale and their NF-кB Inhibitory Activity

Yang, Qian; Li, Yinqing; Liu, Xizi; Han, Shiyi; Fan, Shuochao

doi:10.1055/a-1543-1261

Cited by 1 publication

(1 citation statement)

References 27 publications

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“…Rhizoma alismatis has a long history of use in China and exhibits physiological activities, such as diuretic, anti-urolithiasis, antioxidant, and anti-inflammatory characteristics [29,30]. Du et al [31] showed that R. alismatis extract is almost nontoxic to cells at low concentrations, and that adding it to oleic acid-treated hepatocytes could reverse the lipid peroxidation in hepatocytes and reduce the expression of cellular inflammatory factors, as well as the degree of cell damage.…”

Section: Introductionmentioning

confidence: 99%

Carboxymethylated Rhizoma alismatis Polysaccharides Regulate Calcium Oxalate Crystals Growth and Reduce the Regulated Crystals’ Cytotoxicity

Cheng

Ouyang

2023

Biomolecules

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Objective: This study explored the effects of polysaccharides (RAPD) extracted from the traditional anti-stone Chinese medicine Rhizoma alismatis and their carboxymethylated derivatives (RAPs) on the crystal phase, morphology, and size of calcium oxalate (CaOx). It also determined the damaging ability of the regulated crystals on human renal tubular epithelial cells (HK-2). Methods: RAPD carboxymethylation with a carboxyl group (–COOH) content of 3.57% was carried out by the chloroacetic acid solvent method. The effects of –COOH content in RAPs and RAP concentration on the regulation of CaOx crystal growth were studied by controlling the variables. Cell experiments were conducted to explore the differences in the cytotoxicity of RAP-regulated crystals. Results: The –COOH contents of RAPD, RAP1, RAP2, and RAP3 were 3.57%, 7.79%, 10.84%, and 15.33%, respectively. RAPs can inhibit the growth of calcium oxalate monohydrate (COM) and induce the formation of calcium oxalate dihydrate (COD). When the –COOH content in RAPs was high, their ability to induce COD formation was enhanced. In the crystals induced by RAPs, a high COD content can lower the damage to cells. In particular, the cytotoxicity of the crystals induced by RAP3 was the lowest. When the concentration of RAP3 increased, the cytotoxicity gradually increased due to the reduced size of the formed COD crystals. An interaction was observed between RAPs and crystals, and the number of RAPs adsorbed in the crystals was positively correlated with the –COOH content in RAPs. Conclusions: RAPs can reduce the damage of CaOx to HK-2 cells by regulating the crystallization of CaOx crystals and effectively reducing the risk of kidney stone formation. RAPs, especially RAP3 with a high carboxyl group content, has the potential to be developed as a novel green anti-stone drug.

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Section: Introductionmentioning

confidence: 99%