• Korean Journal of Pharmacognosy
• /
• v.48 no.4
• /
• pp.343-349
• /
• 2017

The current definition of Arismatis Rhizoma is the tuberous root of Alisma orientale Juzepzuk in the Korean Pharmacopoeia, but there is still no marker compound. So it has difficulties in quality control. Therefore, in this study, we have established a method to analyze alisol B and alisol B acetate using HPLC as a marker compounds of Arismatis Rhizoma. As the result of the analysis, alisol B content was ranged from 0.02% to 0.50% and alisol B acetate content was ranged from 0.12% to 0.25% in 40 samples. The stability of alisol B and alisol B acetate was investigated during 24 months. As a result, alisol B acetate was significantly decreased. The marker compound of Arismatis Rhizoma is alisol B acetate and the content of 0.05% or more is suitable by applying the stability results.

• Korean Journal of Pharmacognosy
• /
• v.13 no.3
• /
• pp.112-115
• /
• 1982

Alisol A monoacetate, alisol B monoacetate, alisol C monoacetate and alisol B were isolated from Alismatis Rhizoma, which is a herbal drug used frequently in the oriental prescriptions. Potential liver-protective activities of the isolated alisol compounds were evaluated against $CCl_4-induced$ liver damage. The results obtained from liver microsomal enzyme assay, measurement of serum glutamic pyruvic transaminase (EC 2.6.1.2) and serum triglyceride content indicated that alisol A,B and C monoacetates showed significant liver-protective activities against $CCl_4$ poisoning. Alisol B monoacetate exhibited slightly higher activity than that of alisol B.

• Natural Product Sciences
• /
• v.14 no.3
• /
• pp.152-155
• /
• 2008

An HPLC-ESI-MS method has been developed to identify and quantify two main tetracyclic triterpenes, alisol B 23-acetate and alisol C 23-acetate in the Alismatis Rhizoma (Taeg-Sa). The relative distribution of the two triterpenes in the methanolic extract of commercially available Alismatis Rhizoma was established by selective ion monitoring (SIM) mode via electrospray ionization (ESI) source. Regression equations revealed good linear relationship, and the correlation coefficients were 0.999 and 0.998 for alisol B 23-acetate and alisol C 23-acetate, respectively, between the peak areas of the components and their concentration in a range of $0.06-2.0{\mu}g/mL$. It was found that there were significant differences in the amount of alisol B 23-acetate and alisol C 23-acetate between Korean and Chinese origins. The results showed that this method could be used to identify the two components in Alismatis Rhizoma with high sensitivity and selectivity.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.34 no.2
• /
• pp.243-246
• /
• 2005

Alismatis Rhizoma is an oriental medicine originated from the rhizome of Alisma orientale or Alisma plangtago-aquatica var. orientale (Alismataceae). As an standard compound of this plant, alisol B 23-acetate was isolated from the dichloromethane fraction of Alisma orientale and identified by the spectroscopic evidences. A Quantitative analysis of alisol B 23-acetate using HPLC method showed that the average content was 0.47$\pm$0.11% in 33 samples throughout the various regions of Korea.

• Archives of Pharmacal Research
• /
• v.24 no.6
• /
• pp.524-526
• /
• 2001

Four prostate-type triterpenes were isolated from a methanol extract of Alismatis Rhizoma by bioassay-guided isolation using in vitro cytotoxic assay. The compounds were identified as alisol B 23-acetate (1), alisol C 23-acetate (2), alisol B (3), alisol A 24-acetate (4) by spectroscopic methods. Amongst the compounds, alisol B (3) showed significant cytotoxicity against SK-OV3, B16-F10, and HT1080 cancer cell lines with $ED_50$ values of 7.5, 7.5, $4.9\mu\textrm{g}/ml$, respectively.

• Archives of Pharmacal Research
• /
• v.26 no.6
• /
• pp.463-465
• /
• 2003

Four protostane-type triterpenes, alisol B 23-acetate (1a), alisol C 23-acetate (2a), alisol B(3a), and alisol A 24-acetate (4a), were isolated from the rhizome of Alismatis plantago-aquatica L. var. orientale Samuelson (Alismataceae) and eleven protostane derivatives (compounds 1-11) were obtained by selective modification from alisol B 23-acetate (1a). These compounds were investigated for their anti-complement activity against the classical pathway of the complement system. Alisol B (3a) and alisol A 24-acetate (4a) exhibited anti-complement activity with $IC_{50} values of 150 and 130 \mu$ M. Among the synthetic derivatives, the tetrahydroxylated protostane triterpene (9) showed moderate inhibitory activity with $IC_{50} value of 97.1 \mu$ M. Introduction of an aldehyde group at C-23 (10; $IC_{50} value, 47.7 \mu$ M) showed the most potent inhibitory effect on the complement system in vitro.

• Korean Journal of Pharmacognosy
• /
• v.42 no.3
• /
• pp.218-222
• /
• 2011

The purpose of this research is to study of inhibitory activity of protostane type triterpens against farnesyl-protein transferase (FPTase). The ingredients of Alismatis Rhizoma, alisol B 23-acetate, C 23-acetate, alisols B and A 24-acetate, and thirteen synthetic analogues from alisol B 23-acetate exhibited inhibition activity against FPTase by scintillation proximity assay method. As a result, alisol C 23-acetate, one of the constituents of Alismatis Rhizoma, the synthetic analogues carboxylated and hydroxylated on branch chain of protostane exhibited a significant inhibitory activity. However, the compounds significantly lowered the inhibitory activity, when there is no 3 position keto on protostane skeletone.

• Natural Product Sciences
• /
• v.18 no.2
• /
• pp.121-129
• /
• 2012

Hepatoprotective effects of methanol extract and alisol B 23-acetate of Alisma orientale were studied in acetaminophen (APAP)-treated rats. APAP increased hepatic content of lipid peroxide, which was suppressed by methanol extract and alisol B 23-acetate. The liver of rats treated with APAP had higher P-450, aminopyrine N-demethylase and aniline hydroxylase activities than those of normal control rats. The increases in hepatic drug metabolizing enzymes by the i.p. injection of APAP were significantly alleviated by the administration of methanol extract or alisol B 23-acetate. The injection of APAP also resulted in a substantial reduction of hepatic glutathione content and glutathione S-transferase activity, and the decreases were partially, but significantly, restrained by the oral administration of methanol extract prior to the i.p. injection of APAP. Hepatic activities of glutathione reductase (GR) and ${\gamma}$-glutamylcystein synthetase ${\gamma}$-GCS) were also decreased significantly in APAP-treated rats. The decreases in hepatic GR and ${\gamma}$-GCS activities by APAP injection were improved partially, but significantly, with administration of methanol extract of A. orientale. Treatment with alisol B 23-acetate also improved the hepatic ${\gamma}$-GCS activity significantly, but not GR.

• The Journal of Internal Korean Medicine
• /
• v.38 no.6
• /
• pp.891-901
• /
• 2017

Objectives: The aim of the study was to evaluate the anti-asthmatic effect of alismatis rhizoma and alisol acetate B combination therapy in a murine asthma model. Methods: C57BL/6 mice were sensitized to and challenged with a mixture of ragweed, dust mite, and aspergillus to induce an asthma animal model. Alismatis rhizoma extract and alisol acetate B combination therapy was co-administered only in the experimental group. To evaluate the anti-asthmatic effect of the combination therapy, inflammatory cell counts in bronchoalveolar lavage (BAL) fluid were determined, and tissue was examined histologically with hematoxylin and eosin (H & E) and periodic acid-Schiff (PAS) stains, by enzyme-linked immunosorbent assay (ELISA) of IgE, IL-4, and IL-5, and with reverse transcription polymerase chain reaction (RT-PCR) of IL-5, IL-33, MUC5AC. Results: Alismatis rhizoma and alisol acetate B combination therapy reduced the number of inflammatory cells, alleviated histologic features, and down-regulated all the investigated asthma mediators, IgE, IL-4, IL-5, IL-33, and MUC5AC. Conclusions: According to the above results, alismatis rhizoma and alisol acetate B combination therapy may have therapeutic potential for asthma.

• Korean Journal of Pharmacognosy
• /
• v.12 no.4
• /
• pp.200-202
• /
• 1981

Alisol B(II) and alisol B monoacetate (III) isolated from the rhizome of Alisma orientale Jazepczuk (Alismataceae) showed antagonistic effects against the contractions induced by angiotensin and bradykinin in rat ileum. However, they seem to be nonspecific antagonism.