• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.1
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• pp.171-173
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• 2006

Trichomonicidal activity of thirty methanolic herbal extracts used in traditional medicine in Korea was evaluated. Trichomonas vaginalis was used as experimental model, and anti-Trichomonas activity was determined over cultures of the parasite in TYM Diamond medium. Six methanolic extracts such as Acanthopanacis Cortex, Agrimoniae Herba, Pulsatillae Radix, Sanguisorbae Radix, Sophorae Radix, and Torilidis Fructus showed more than 50% trichomonicidal activity at the concentration of 200 g/ml. These extracts were further fractionated into n-butanol soluble and aqueous phases. Except for Acanthopanacis Cortex, all of n-butanol soluble phases showed potent trichomonicidal activity, while none of aqueous phases exhibited trichomonicidal activity.

• 한국약용작물학회:학술대회논문집
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• 2007.05a
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• pp.292-293
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• 2007

• Proceedings of the PSK Conference
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• 2002.04a
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• pp.210.3-211
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• 2002

• The Journal of Internal Korean Medicine
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• v.17 no.1
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• pp.204-209
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• 1996

Several medicinal Plants in Jeonbuk are screened for the contraction or relaxation to the acetylcholine and histamine induced contraction in the isolated rat and guinea pig's trachea smooth muscle. Contractions evoked by acetylcholine and histamine were inhibited by Flos Farfarae, Poria and Rhizoma alismatis, but contractions were increased Tuber Pinelliae, Herba Chelidonii, Fructus Qusqualis, Radix Asari, Semen Perillae, Folium Artemisiae and Fructus Schizamdrae increased the contractions evoked by acetylcholine and histamine. Radix Puerariae, Radix Osterici Koreani, Rhizoma Zingiberis siccatum, Radix Sanguisorbae, Rhizoma Atractylodis, Fructus gardeniae and Cortex Magnoliae did not effect the contractions evoked by acetylcholine and histamine.

• Korean Journal of Medicinal Crop Science
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• v.13 no.5
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• pp.219-226
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• 2005

Sanguisorbae radix (SR) from Sanguisorba officinalis L. (Losaceae) is widely used in Korea and China due to its various pharmacological activity. The present study aims to investigate the effect of the methanol extract of SR on amyloid ${\beta}$ Protein(25-35) $(A{\beta}\;(25-35))$, a synthetic 25-35 amyloid peptide, -induced neurotoxicity using cultured rat cortical neurons. SR, over a concentration range of $10-50\;{\mu}g/ml$, inhibited the $A{\beta}$ (25-35) $(10\;{\mu}M)-induced$ neuronal cell death, as assessed by a 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyl-tetrazolium bromide (MTT) assay and the number of apoptotic nuclei, evidenced by Hoechst 33342 staining. Pretreatment of SR $(50\;{\mu}g/ml)$ inhibited $10\;{\mu}M\;A{\beta}$ (25-35)-induced} elevation of cytosolic calcium concentration $([Ca^{2+}]c)$, which was measured by a fluorescent dye, fluo-4 AM. SR $(10\;and\;50\;{\mu}g/ml)$ inhibited glutamate release into medium induced by $10\;{\mu}M\;A{\beta}(25-35)$, which was measured by HPLC, and generation of reactive oxygen species. These results suggest that SR prevents $A{\beta}$ (25-35)-induced neuronal cell damage in vitro.

• Korean Journal of Medicinal Crop Science
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• v.8 no.2
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• pp.109-116
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• 2000

This study was carried out to screen herbs among herbal plants showing antimicrobial activity against some food spoilage and pathogenic microorganisms. One hundred fifteen kinds of herbal plants were extracted by 70% ethanol, and then they have been screened for antimicroorganisms. Six herbal plants such as Salviae radix, Dryopteris rhizoma, Terminaliae fructus, Araliae radix, Psoraleae fructus and Schisandrae fructus showed strong antimicrobial activities against Bacillus subtilis. Antimicrobial activities were showed in Anemarrhena radix and Dryopteris rhizoma on Candida albicans, and in Anemarrhenae radix, Dryopteris rhizoma and Polygalae radix on Schizosaccharomyces sp. It was revealed that eight herbal plants such as Dryopteris rhizoma, Salviae radix, Sappan ligunum, Sinomeniae radix, Schisandrae fructus, Rhui fructus, Sophorae radix and Inulae radix also showed antimicrobial activities on Streptococcus mutans. In addition, Anemarrhena radix, Curcuma tuber, Inulae radix, Polygonum radix, Sanguisorbae radix, Scutellariae radix and Terminaliae fructus and showed antimicrobial activities on Trichophyton mentagrophytes. Four kinds of herbal plants such as Dropteris rhizoma, Salviae radix, Terminaliae fructus and Scutellariae radix which showed broad antimicrobial spectrums were mixed by 1 : 1 ratio with the other herbal paints showing relatively strong microbial activities such as Terminaliae fructus, Sinomeniae radix and Scutellariae radix etc. The extracts of mixed herbal paints showed higher antimicrobial activities than those of single herbal plant.

• The Journal of Internal Korean Medicine
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• v.20 no.1
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• pp.122-132
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• 1999

Purpose : Hepatitis B virus DNA transfected cell line(HepG2.2.15) was cultured to evaluate the effect of herbs on the expression of HBeAg and the replication of HBV. HepG2.2.15 produces HBV particles as well as viral proteins into cell culture media. Methods : Extracts of herbs were adminitered to the cells on the proper concentration. Culture media was collected 48 hours after the herbal administration and HBeAg level in the media was examined by ELISA method. To confirm that the anti-viral effect was not due to direct cytotocixity of the extracts, normal cell proliferation was shown by cell counting. And as of the interference in protein synthesis of HepG2.2.15 by herb-extracts, we used the result of study that we performed before by ${\alpha}FP$ assay using EIA method. Results& Conclusion : Herb medicines like 地楡(Sanguisorbae Radix) and 覆盆子(Rubi Frusctus) showed significant inhibitory effect on HBeAg expression at p<0.01 and 五味子(Acanthopanacis Cortex) at p<0.05. Whereas, though some herbs such as ?草根(Rubiae Radix), 山査(Crataegii Fructus), 白芍藥(Paeoniae Radix Alba), and 大黃(Rhei Radix et Rhizoma) showed the tendecy to suppress HBeAg. most of them were not significant statistically. From the above, we could conclude that those herb medicines can be applied to patients effectively and further studies on effective fraction of some herbs are thought to be needed.

• Korean Journal of Pharmacognosy
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• v.18 no.2
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• pp.118-126
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• 1987

Natural Killer cells are considerd to play an important role in antitumor immune surveilance mechanism. In this study, 21 putative anticancer drugs selected from reference were assessed by evaluating the effect on rat Natural Killer cell activity (NKCA). All 21 herb drugs were extracted in boiling water, lyophilized, autoclaved, and then used for experiment. Culture supernatant of concanavalin-A (Con-A)-stimulated rat spleen cells as a source of lymphokine was also used as a control of comparison. Rat spleen cells were used as effector and NKCA was measured in 4hr $^{51}Cr-release$ assay against Yac-1 mouse lymphoma cell line. In order to determine the optimal conditions for NKCA augmentation, effector cells were treated with 3 different concentrations of each drug for 24, or 48 hrs before testing of NKCA, In optimal conditions determined from previous results, the effect of herb drugs on NKCA were assessed in 3 to 5experiments. NKCA was significantly enhanced by treatment with 4 herb drugs(Ponciri Fructus, Houttuyniae Herba, Aurantii Pericarpium, Nepetae Herba). Culture supernatant of Con-A-stimulated spleen cells also augmented the rat NKCA more significantly. The results show that 4 of the herb medicines supposed to display anticancer effect may have activity as a biological response modifier through augmentation of NKCA.

• The Journal of Internal Korean Medicine
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• v.31 no.2
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• pp.314-330
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• 2010

Objective : This study was performed to investigate the anti-fibrogenic effect and changes of inflammation-related genes by YBR I and YBR II (YBR I: Arteisiae Capillaris Herba, Atractylodis Rhizoma Alba, Hoelen/ YBR II: YBR I +Sanguisorbae Radix, Biotae Cacumen, Cirsii Japonici Herba) on HSC(hepatic stellate cells)-T6 and TAA-induced rat liver tissue. Materials and Methods : HSC-T6 were treated with various concentrations of distilled-water extract YBR I and YBR II extract for 24, 48 and 72 hours. After the treatment, cell viability, proliferation, procollagen levels and IL-6 levels were measured by using MTT Assay, BrdU Assay, Procollagen Type 1 C-peptide EIA kit, and Murine IL-6 ELISA Development kit. Rat liver fibrosis was induced by intraperitoneal TAA injection of 150mg/kg 3 times a week for 6 weeks. After the treatment, body weight, liver & spleen weights, liver function test, complete blood cell count and change of portal pressure were studied. In addition, gene expressions of ASMA, IL-6, MMP-2, TIMP-1 and TIMP-2, all of which are known to be associated with liver fibrosis, were analyzed by using Real-Time PCR. After YBR I and YBR IItreatment, percentages of collagen in TAA-induced rat liver tissue were measured. Results : The viability and proliferation of the HSC-T6 decreased as the concentration increased. The production of procollagen decreased as the concentration increased. The production of IL-6 was little influenced by YBR I and YBR II. There was no difference in rat body weight between the TAA-only group and the YBR groups. Compared with rat liver weight of TAA-only group, that of the YBR groups increased. In the YBR I group, the serum level of AST elevated by TAA injection significantly decreased and in the YBR I and II group, the serum level of ALP and ALT elevated by TAA injection decreased. In the YBR I group, white blood cell count elevated by TAA injection decreased but platelets increased. In the YBR I group, the portal pressure elevated by TAA injection significantly decreased. Decreases in the gene expression of ASMA and MMP-2 were observed in the YBR I group. The gene expression of IL-6 was little influenced by YBR I and YBR II -treated groups. In the histological finding, TAA injections caused severe fibrosis, but YBR I and YBR II treatment significantly reduced the amounts of hepatic collagens. Conclusions : These results suggest that YBR I and II have inhibitory effects on the hepatic fibrogenesis.