迷迭香酸 T2765

Product Introduction
Bioactivity


英文名: Rosmarinic acid

描述: Rosmarinic acid (Labiatenic acid) 广泛存在植物中，具有抗氧化、抗炎和抗菌活性。它抑制 MAO-A，MAO-B 和 COMT，IC50分别为 50.1，184.6 和 26.7 μM。

细胞实验: Rosmarinic acid (RA) is dissolved in DMSO and stored, and then diluted with appropriate media before use[2]. Human keratinocytes (HaCaT cells) are treated with Rosmarinic acid (0.625, 1.25, 2.5, or 5 μM) and exposed to UVB radiation 1 h later. They are then incubated at 37°C for 48 h. At this time, MTT is added to each well to obtain a total reaction volume of 200 μL. After 4 h incubation, the supernatant is removed by aspiration. The formazan crystals in each well are dissolved in dimethyl sulfoxide (DMSO; 150 μL), and the absorbance at 540 nm is measured on a scanning multi-well spectrophotometer[2].

体外活性: Rosmarinic acid (RA) exhibits a multifunctional profile characterized by antioxidant effects, and monoamine oxidases (MAO-A and MAO-B) and catechol-O-methyl transferase (COMT) inhibition in vitro. Rosmarinic acid exhibits antioxidant effects against hydroxyl (HO(•)) and nitric oxide (NO) radicals (IC50 of 29.4 and 140 μM, respectively), and inhibition of lipid peroxidation (IC50 of 19.6 μM)[1]. Rosmarinic acid (RA) exerts a significant cytoprotective effect by scavenging intracellular ROS induced by UVB. In Water2-treated cells, 2.5 μM Rosmarinic acid scavenges 60% of intracellular ROS compared to 77% of intracellular ROS scavenging effect in N-acetyl-L-cysteine (NAC)[2].

体内活性: Rosmarinic acid (RA) is a widespread phenolic ester compound in plants, particularly those in the Labiatae family of herbs, like Rosmarinus officinali, Salvia miltiorrhiza, and Prunella vulgaris. Rosmarinic acid suppresses colonic inflammation in dextran sulphate sodium (DSS)-induced mice by dual inhibition of NF-κB and STAT3 activation. In the DSS-induced colitis model, Treatment with Rosmarinic acid (30, 60 mg/kg, p.o.) markedly attenuates the production of cytokines[3].

存储条件: Powder: -20°C for 3 years | In solvent: -80°C for 1 year

溶解度: H2O : 36.03 mg/mL (100 mM)
DMSO : 72.07 mg/mL (200 mM)
5% DMSO+95% Saline : 1.5 mg/mL (4.16 mM)


关键字: Monoamine Oxidase | inhibit | Inhibitor | MAO | Endogenous Metabolite | Rosmarinic acid | COMT | Apoptosis

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