• Korean Journal of Plant Resources
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• v.32 no.4
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• pp.255-263
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• 2019

Glycyrrhizae radix is one of the most frequently prescribed ingredients in Oriental medicine, and Glycyrrhizae radix extract has been shown to exert anti-cancer effects. However, the cellular and molecular mechanisms of programed cell death (apoptosis) by Glycyrrhizae radix are poorly defined. In the present study, it was examined the molecular mechanisms of apoptosis by water extracts of Glycyrrhizae radix (GRW) in human bladder T24 cancer cells. It was found that GRW could inhibit the cell growth of T24 cells in a concentration-dependent manner, which was associated with the induction of apoptotic cell death, as evidenced by the formation of apoptotic bodies, DNA fragmentation and increased populations of annexin-V positive cells. The induction of apoptotic cell death by GRW was connected with an up-regulation of pro-apoptotic Bax protein expression and down-regulation of anti-apoptotic proteins (Bcl-2 and Bcl-xL), and inhibition of apoptosis family proteins (XIAP, cIAP-1 and cIAP-2). In addition, apoptosis-inducing concentrations of GRW induced the activation of caspase-9, an initiator caspase of the mitochondrial-mediated intrinsic pathway, and caspase-3, accompanied by proteolytic degradation of PARP. GRW also induced apoptosis via a death receptor-mediated extrinsic pathway by caspase-8 activation, resulting in the down-regulation of total Bid and suggesting the existence of cross-talk between the extrinsic and intrinsic pathways. Taken together, the present results suggest that GRW may be a potential chemotherapeutic agent for the control of human bladder cancer cells.

• Korean Journal of Plant Resources
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• v.20 no.3
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• pp.226-233
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• 2007

To develop a clinically available saponin- or sapogenin complex from Oriental medicines, the EtOH extract (KPRG-A) was obtained by extracting from the four crude drugs, Kalopanacis Cortex, Platycodi Radix, Rubi Fructus and Glycyrrhizae Radis. The BuOH fraction (KPRG-B), a crude saponin complex, was prepared by fractionating KPRG-A, which were further completely hydrolyzed to afford the sapogenin complex (KPRG-D). In an attempt to find the antinoicpetive effects of the saponin complex and sapogenin complex, KPRG-C, and -D, were assayed by writhing-, hot plate-, and tail-flick tests using mice or rats. The three samples were also subjected to antiiflammatory tests using serotonin-induced and carrageenan-induced hind paw edema mice and rats, respectively. The three samples significantly reduced inflammations and pains of the experimental animal. The potency were found in the order of KPRG-D> KPRG-C> KPRG-B. The most active sample, KPRG-D, caused no death, no body increase or no anatomical pathlogic change even at 2,000 mg/kg dose. These results suggest that a sapogenin complex, KPRG-D, which was found to contain mainly hederagenin, platycodigenin, polygalacic acid, 23-hydroxytormentic acid, glycyrrhetic acid together with minor triterpene acids, could be a potential candidate for antiinflammatory therapeutics.

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.210.1-210.1
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• 2003

Keokhachukeu-tang is the one of Chinese traditional prescription used for the treatment of liver disease. This prescription consists of Carthami Flos (6g), Persicae Semen (9g), Pteropi Faeces (9g), Corydalis Tuber (9g), Moutan Radicis Cortex (6g), Paeoniae Radix rubra (9g), Angelicae gigantis Radix (9g), Cnidii Rhizoma (9g), Linderae Radix (12g), Cyperi Rhizoma (12g), Aurantii Fructus (9g), and Glycyrrhizae Radix (3g). Water extract of Keokhachukeu-tang showed a moderate hepatoprotective effect on tacrine-induced cytotoxicity in Hep G2 cells. (omitted)

• The Korea Journal of Herbology
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• v.29 no.5
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• pp.9-16
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• 2014

Objectives : Investigation of the antidepressant effect of Glycyrrhizae Radix (GR) through the anti-inflammatory effect. Methods : Depression in rats was induced by LPS (i,p.3days). The rats were treated with GR100 mg/kg (GR 100) or GR400 mg/kg (GR 400). The depressive immobility was examined with Tail Suspension Test(TST) and Forced Swimming Test(FST). The expression of nuclear factor-${\kappa}B$(NF-${\kappa}B)$, $I{\kappa}B$ was measured with western blotting. The concentration of corticosterone, cytokine in plasma was measured with ELISA. The expression of c-Fos in the paraventricular nucleus(PVN) and tyrosine hydroxylase(TH) in the locus coeluleus(LC) were measured with immunostaining method. Results : In the TST, GR400 group significantly decreased immobility time compared with the LPS group. In the FST, GR100, GR400 group significantly decreased immobility time comparing with the LPS group. c-Fos expression in GR100 and GR400 group was decreased comparing with the lipoplysaccharide(LPS) group. The $I{\kappa}B$ expression of GR100 and GR400 group was increased comparing with the LPS group. The level of corticosterone of GR100 group was decreased comparing with the LPS group. The concentration of cytokine of GR100 and GR400 group was decreased comparing with the LPS group. TH expression in the LC was increased in LPS group, but in GR100 and GR400 group was not shown significant decrease. Conclusion : According to this results obtained, GR has antidepressant effects by the anti inflammatory action through the suppression of HPA axis activity, not through the action against the catecholaminergic system.

• Korean Journal of Pharmacognosy
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• v.36 no.3 s.142
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• pp.209-219
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• 2005

In this study, we carried out the preparing standardization and regulation of processed Glycyrrhizae Radix (PGR) which have been widely used in oriental medicines. Glycyrrhizae Radix(GR) have been generally prepared by the stir-frying, or mix-frying with honey for the purpose of decreasing sweetness and augmenting vitality. Firstly, we tried to standardize PGR prepared by the stir-frying. We purchased 14 kinds of PGR and non-processed GR(NPGR) at oriental physician's offices and oriental pharmacies on a nation scale, respectively. The amounts of dry on loss, water extract, diluted ethanol extract, ether extract, total ash, acid insoluble ash, glycyrrhizin(GL), glycyrrhetic acid(GA) and liquiritin(LQ) of them were examined. The amounts of dry on loss, GL and LQ in commercial PGRs showed remarkable decrease, while GA showed increased as compared with NPGR. In order to standardize preparing method of PGR, the effect of heating time on physico-chemical parameters and biological activities were examined. Physico-chemical parameters such as dry on loss, extract amount, GL and LQ contents in PGRs showed decrease, however, GA was increased with heating time as compared with NPGR. Also, GA, obtained from heat-treated GR, was found as an artifact in PGRs. PGR was more effective than NPGA in vitro test of DPPH scavenging effect and TBA-Rs reducing effect. PGR and NPGR showed potent hepatoprotective effect on $CCl_4-intoxicated$ rats. Especially, PGR prepared by 80 min of heating was the most effective. Considering these results, the optimal condition for PGR preparation was $150^{\circ}C$ for 80 min.

• Korean Journal of Pharmacognosy
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• v.14 no.3
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• pp.113-118
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• 1983

Studies were undertaken to develop for the anti-inflammatory analgesic activities of 'Insam-Tang' extract, which composed of four crude drugs; Ginseng Radix, Glycyrrhizae Radix, Atractylodis Rhizoma, and Zingiberis Rhizoma, was known to be applied in edema, convulsion, excremental blood, and cooling pain etc, in oriental herb remedies. It was exhibited significant anti-inflammatory effect on carrageenin inflammation, and preventive and therapeutic effects to chronic inflammation on Freund' complete adjuvant in rats, Especially, therapeutic effect of extract 500mg/kg was observed more effective than that of phenylbutazone 50mg/kg. Also, it was shown significant effect on leakage of dye into the peritoneal cavity and analgesic effect on squirm symptom induced by acetic acid in mice.

• The Korea Journal of Herbology
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• v.20 no.3
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• pp.51-58
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• 2005

Objectives : The purpose of this research was physiological activities and investigate cytotoxicity of Sunbanghwalmyung-um extract. Methods : Physiological activity and a cytotoxicity were examined through the hot water and ethanol extracts from Sunbanghwalmyung-um and its ingredient. Results : The electron donating ability(EDA) was 66.9%, 71.3% in 1000 ppm water extract and ethanol extract. Above 90% from 1000 ppm ethanol extract showed a higher activities and it is Rhei Radix et Rhizoma, Lonicerae Flos, Gleditsiae Spina, Glycyrrhizae Radix, Myrrh. SOD-like activity was weak as 12.24%, 16.62% in 700 ppm. In water and ethanol extracts cytotoxicity were against G361, B16F10, MDA, A549, high cytotoxity over 70%. Rhei Radix et Rhizoma, Gleditsiae Spina, Trichosanthis Radix, Paeoniae Radix Rubra showed high cytotoxicity in water and ethanol extracts. Conclusions : We observed physiological activities and investigated cytotoxicity of Sunbanghwalmyung-um and its ingredients. The results also demonstrated in food or cosmetic industry.

• Biomolecules & Therapeutics
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• v.4 no.3
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• pp.280-284
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• 1996

Licorice has been widely used in combination with other herbs or synthetic drugs for various disorders. In an effort to study the effect of licorice roots (Glycyrrhizae Radix, GR) and glycyrrhizin on the hepatic glucuronidation, we have previously found that the pretreatment of GR or glycyrrhizin for 6 days resulted in a marked increase in the enzymatic activity of 3-methylcholanthrene (3-MC)-inducible hepatic UDP-glucuronosyltransferase (UGT) isozyme that has high affinity toward phenolic substrates (p-nitrophenol form, UGTIA) in Sprague-Dawley rats. As an approach to elucidate the mechanism for the enzyme activation by licorice in rat liver, we examined the levels of hepatocellular mRNAs for UGTIA upon the treatment of GR or glycyrrhizin. The hepatic mRNAs were extracted from Sprague-Dawley rats and Wistar rats after the treatment of the methanol extract of GR (1 g/kg, p.o.), glycyrrhizin (23 mg/kg, p.o.) for 6 days, or 3-MC (40 mg/kg, i.p.) for 3 days. Using the UGT1A1 CDNA as a probe, we found that the mRNAs for the enzyme were induced by 3-MC treatment while those were influenced neither by GR nor by glycyrrhizin in both strains of rats. These results indicate that the activation of rat liver UGTI A by licorice and glycyrrhizin was not due to the induction of mRNAs for the enzyme.

• Journal of Physiology & Pathology in Korean Medicine
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• v.25 no.1
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• pp.78-83
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• 2011

The purpose of this study is to investigate whether the intracellular hydrogen peroxide productions of mouse macrophage RAW 264.7 are modulated by Red Ginseng-Ejung-tang water extract (ER) and White Ginseng-Ejung-tang water extract (EG). Red Ginseng-Ejung-tang were composed of Red Ginseng, Atractylodes rhizome white, Zingiberis Rhizoma Siccus, and Glycyrrhizae Radix. White Ginseng-Ejung-tang were composed of White Ginseng, Atractylodes rhizome white, Zingiberis Rhizoma Siccus, and Glycyrrhizae Radix. The intracellular hydrogen peroxide productions were measured by dihydrorhodamine 123 assay with spectrofluorometer (excitation 485 nm; emission 535 nm). For 4, 20, 24, 44, 48, 68, and 72 h incubation, ER significantly increased hydrogen peroxide productions of RAW 264.7 at the concentration of 25, 50, 100, and $200{\mu}g/mL$ (P <0.05). EG for 4, 20, 24, 44, and 48 h incubation significantly increased hydrogen peroxide productions of RAW 264.7 at the concentration of 25, 50, 100, and $200{\mu}g/mL$ (P <0.05). For 68 and 72 h incubation, EG at the concentration of 50, 100, and $200{\mu}g/mL$ significantly increased hydrogen peroxide productions in RAW 264.7 (P <0.05). These results suggest that ER and EG have the immune-enhancing properties related with their increasing effects on the intracellular hydrogen peroxide production of macrophage.

• Journal of Pharmaceutical Investigation
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• v.39 no.3
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• pp.161-166
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• 2009

This study is to specify the criteria and testing methods of WHW extract which has a potency as a therapeutic agent for chronic renal failure. The determination of specifications of WHW extract is mostly important because of the quality assurance. Three batches of WHW extract were obtained by the extraction at $98^{\circ}$C for 3 hr using water from mixture of 15 herbal medicines including Codonopsis Pilosulae Radix, Salviae Radix, Pinelliae Rhizoma, Coptidis Rhizoma, Evodiae Fructus, Epimedii Herba, Rhei Rhizoma, Perillae Herba, Glycyrrhizae Radix, Artemixiae capillaris Herba, Alimatis Rhizoma, Hoelen, Atractylodies Rhizoma alba, Polyporus and Cinnamomi Ramulus, subsequently, vaccum-dried for 15 hr. The yield of WHW extracts was 24.53% on the average. The identification of each herbal medicine of WHW extract was performed by modification of Korean Pharmacopeia IX (KP IX). The assay of WHW extract was performed using standard such as berberine, icariin, glycyrrhizin, and cinnamic acid of indicative herbal medicines by modification of KP IX, too. As well as, paticle size classification test was carried out to indicate the boundary of particle size of WHW extract and the particle size of WHW extract more than 50% showed the 140 ${\mu}$m. Taken together, WHW extract could be prepared reproducibly and assurable if follows the presented extraction and drying steps and its specifications were satisfied with the indicated criteria.