• Korean Journal of Medicinal Crop Science
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• v.16 no.1
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• pp.27-32
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• 2008

This study aimed to investigate the anti-allergic activity and the mechanism of action of Crassirhizomae rhizoma (CR). The extract of CR exhibited potent inhibitory activity in mast cells; its $IC_{50}$ values were $31.2{\pm}1.5{\mu}g/m{\ell}$ for rat basophile leukemia (RBL)-2H3 mast cells and $51.5{\pm}2.1{\mu}g/m{\ell}$ for bone marrow-derived mast cells by antigen stimulation. It also suppressed the expression of TNF-${\alpha}$ and IL-4 mRNAs in RBL-2H3 cells. In an in-vivo animal allergy model, it inhibited a local allergic reaction, passive cutaneous anaphylaxis (PCA), in a dose-dependent manner. With regard to the mechanism of action, CR inhibited the activating phosphorylation of Syk kinase, a key signaling protein for the activation of mast cells. Taken together, these results strongly suggested that the anti-allergic activity of CR is mediated through the inhibition of histamine release and allergic cytokine production by the inhibition of Syk in mast cells.

• Korean Journal of Medicinal Crop Science
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• v.14 no.5
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• pp.282-288
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• 2006

The effects of extracts from various Oriental medicinal herbs on mast-cell-mediated allergic reactions were investigated in this study. Out of these extracts, the medicinal herb Atractylodis rhizoma alba exhibited the most potent activity in the cells, with $IC_50$ values of $20.5\;{\mu}g/ml$, by DNP-BSA and $33.04\;{\mu}g/ml$, by compound 48/80. Similar to the in vitro activity, Atractylodis rhizoma alba inhibited compound-48/80-induced systemic anaphylaxis by 31.3% at 300 mg/kg in mice. It also suppressed the secretion of $TNF-{\alpha}$, a major pro-inflammatory cytokine in the cells. These results may suggest that Atractylodis rhizoma alba shows anti-allergic activity in compound 48/80-induced anaphylactic mice through the inhibition of mast cells.

• YAKHAK HOEJI
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• v.42 no.4
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• pp.395-402
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• 1998

Mori Cortex Radicis, the root bark of mulberry tree, has been used in the treatment of bronchial asthma and other lung diseases in traditional medicine. There was a recent repor t that the water soluble part with molecular weight of above 10,000 has anti-allergic activity. Therefore, we intended to isolate and purify the anti-allergic compound from hot water extract of the Mori Cortex Radicis. Crude extract of Mori Cortex Radicis was prepared by hot-water extraction, and anti-allergic compound was further purified by alcohol precipitation, successive ultrafiltration, anion exchange chromatography and gel filtration chromatography. This compound had homogeneity which was shown by the sharp single peak in HPLC chromatogram (TSK-GEL G400OPW column, RI detector). The molecular weight of the compound was estimated as 23Kda on the basis of calibration curve plotted against protein standards. This compound was identified as complex of sugar, protein and lignin (19.2: 5.9: 72.7), and proteolysis could not decrease the anti-allergic activity but mild delignification decreased the activity remarkably. Therefore, we concluded that the anti-allergic compound of Mori Cortex Radicis was a lignin-carbohydrate complex.

• Korean Journal of Pharmacognosy
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• v.50 no.3
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• pp.165-174
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• 2019

Oregonin is known as a representative active substance of plants of the Alnus species. In this study, we will show the results of establishing a method for extracting trace amounts of useful substances in plants. Additionally, a variety of physiological activity studies were conducted with extracts containing high content of useful substances. In this study, anti-oxidant, anti-inflammatory and anti-allergic activities of supercritical fluid residue 60% EtOH extracts of Alnus sibirica (ASCFR) were investigated in vitro. To explore anti-oxidant and anti-inflammatory characteristics of supercritical extract, DPPH radical scavenging, and ABTS radical scavenging activity, inhibition of nitric oxide production in LPS-stimulated RAW 264.7 cells and ${\beta}$-hexosaminidase release in IgE-stimulated RBL-2H3 cells were examined, respectively. Results showed a concentration-dependent increase in DPPH and ABTS radical scavenging activity. Cells stimulated with LPS produced more nitric oxide than normal control cells. However, cells treated with supercritical fluid residue 60% EtOH extract decreased production in a concentration-dependent manner. In anti-allergic activity studies, ASCFR showed concentration-dependentanti-allergic activity. Based on results and strong antioxidant activity, ASCFR has potential as basic research materials for development of therapeutic supplements-based medicines or functional cosmetics related to chronic inflammatory skin immunity diseases.

• YAKHAK HOEJI
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• v.36 no.2
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• pp.140-149
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• 1992

Anti-allergic action of each water extracts of some crude drugs was investigated in mice and rats. The activity of hyaluronidase which was used in the screening test of anti-allergic action was inhibited significantly by Amomi Semen, Asiasari Radix, Cimicifugae Rhizoma, Cinnamomi Ramulus, Glycyrrhizae Radix and Scutellariae Radix. The 48-hour homologous passive cutaneous anaphylaxis(48-hr PCA) in mouse ear was inhibited significantly by intraperitoneal(i.p.) injection of Amomi Semen, Cimicifugae Rhizoma, and ketotifen, a comparative drug of an anti-allergic action. The increase of vascular permeability induced by histamine or serotonin was inhibited significantly by i.p. injection of Amomi Semen, Cimicifugae Rhizoma, Cinnamomi Ramulus and ketotifen. In rat dorsal skin, the increase of vascular permeability which was induced by histamine, serotonin or compound 48/80 was inhibited significantly by i.p. injection of Amomi Semen, Asiasari Radix, Cimicifugae Rhizoma, Scutellariae Radix and ketotifen. Armeniacae Semen and Liriopis Tuber which had not inhibited hyaluronidase activity did not inhibit 48-hr PCA and the increase of histamine, serotonin or compound 48/80-induced vascular permeability in mice and rats. These results suggest that each water extract of Amomi Semen and Cimicifugae Rhizoma has anti-allergic action.

• YAKHAK HOEJI
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• v.52 no.5
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• pp.370-375
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• 2008

In this study, the anti-allergic activity and mechanim of Salviae radix (SR) were investigated. The ethanol extract of SR showed significant inhibitory effect on degranulation from antigen-stimulated mast cells and it also inhibited the expression and secretion of TNF-${\alpha}$ and IL-4 in antigen-stimulated RBL-2H3 cells. In the mast cell-mediated local animal allergy model, it suppressed the passive cutaneous anaphylaxis in a dose-dependent manner. As its mechanism of action, SR inhibited the activating phosphorylation of Syk, a downstream signaling molecule of Src-family kinase, for the activation of mast cells. The results of the study indicate that the anti-allergic activity of SR is mediated by the inhibition of Src-family kinase in mast cells.

• Archives of Pharmacal Research
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• v.27 no.1
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• pp.57-60
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• 2004

Glycyrrhizin (18$\beta$-glycyrrhetinic acid-3-O-$\beta$-D-glucuronopyranosyl-(1$\rightarrow2)-\beta$-D-glucuronide, GL) was transformed to 18$\beta$-glycyrrhetinic acid-3-O-$\beta$-D-glucuronide (GAMG) by Streptococcus LJ-22. The antiallergic activities of GL and GAMG was measured using a RBL cell assay system and contact hypersensitivity model mice. GAMG exhibited anti-allergic activity with $IC_{50}$ values of 0.28 mM. GAMG, which is sweeter than GL, and 18$\beta$-glycyrrhetinic acid, which is a GAMG metabolite by human intestinal bacteria, also inhibited the passive cutaneous anaphylaxis and skin contact inflammation. In conclusion, GAMG may be useful as a new sweet food additive and an anti-allergic agent.

• Korean Journal of Breeding Science
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• v.40 no.1
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• pp.22-25
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• 2008

The anti-allergic effect of C3GHi rice breeded from the cross of 'Heugjinjubyeo' and 'Suwon 415' was investigated. Antiscratching behavioral effects of the water extract of C3GHi was higher than Heugjinjubyeo. Orally administered BCRs' extracts exhibited potent inhibitory activity against scratching behaviors which were induced by compound 48/80. The inhibitory effect of C3GHi against the passive cutaneous reaction was more potent than that of Heugjinjubyeo. These finding suggest that black colored rice, especially C3GHi, may inhibit scratching behaviors and passive cutaneous reaction, and its anti-allergic activities were increased by means of selecting high C3G rice seeds.

• Advances in Traditional Medicine
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• v.9 no.1
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• pp.58-66
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• 2009

Allergic conjunctivitis is the most common allergic disease. These diseases are severe & frequent which requires search of new treatments. The aim of the study was to investigate the effects of Tinospora cordifolia (TC), Rubia cordifolia Linn. (RC) on experimentally induced allergic conjunctivitis in rats. In this study, dried water soluble extracts of TC and RC. (250 and 500 mg/kg, p.o. for 7 days) were evaluated for their antiallergic activity in Wistar rats. They were tested for inhibition of egg albumin-induced vascular permeability, inhibition of histamine release from the rat conjunctiva as well as in histamine content in tears. TC and RC showed significant (P < 0.05) inhibition in vascular permeability, inhibition in histamine release from the rat conjunctiva which is reflected by reduced level of histamine content in tears. The activities were found to be comparable to azelastine hydrochloride. These results suggest that the inhibitory effect on egg albumin-induced experimental allergic conjunctivitis in rat may be due to the antihistaminic activity of TC and RC. Our studies provide evidence that TC and RC may be beneficial in the treatment of allergic conjunctivitis.

• Journal of Sasang Constitutional Medicine
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• v.16 no.3
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• pp.85-95
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• 2004

1. Objectives Although the incidence of allergic rhinitis is increasing continually, Sasang Constitutional Medicine is showing favorable treatment outcomes. This study was aimed to test the antimicrobial effects of Bojungikgi-tang, Gwakhyangjeonggi-san, and Gunggwihyangso-san which are being applied to allergic rhinitis of Soeumin. 2. Methods Klebsiella pneumoniae 289 was extracted from allergic rhinitis patients. Bojungikgi-tang, Gwakhyangjeonggi-san, and Gunggwihyangso-san were boiled down and concentrated, and the substances obtained were tested for the effects on stability to temperature and pH and on antimicrobial activity 3. Results When measured the level of antimicrobial activity, the inhibition zones of Bojungikgi-tang, Gwakhyangjeonggi-san, and Gunggwihyangso-san were found 11.42, 11.07, and 10.63mm, respectively. The levels of MIC were $15{\mu}{\ell}$, $20{\mu}{\ell}$, and $10{\mu}{\ell}$ in that order. The antimicrobial activities were increased 13.88% in Bojungikgi-tang, 16.63% in Gwakhyangjeonggi-san, and 10.72% in Gunggwihyangso-san. There was no influence of pH to antimicrobial activity of all three substances. 4. Conclusions Bojungikgi-tang, Gwakhyangjeonggi-san, and Gunggwihyangso-san had a high level of antimicrobial activity to Klebsiella pneumoniae 289 even at a low concentration.