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KMID : 1123920130270010083
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Korean Journal of Oriental Physiology and Pathology
2013 Volume.27 No. 1 p.83 ~ p.91
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Synergic Anti-Pruritic and Anti-Inflammatory Effects of Scutellariae Radix plus Flos Loncerae Extracts in Rat Peritoneal Mast Cell and Chemical Antigen-Induced Mice
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Mok Ji-Ye
Jeon In-Hwa
Kim Hyeon-Soo
Shin Jun-Ho
Park Yong-Gyoun
Jang Seon-Il
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Abstract
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Pruritus is a unpleasant symptom in the skin that provokes the act of or desire to scratch. Mast cells are important effector cells in allergic reactions such as pruritus and inflammation. The purpose of this study was undertaken to investigate the synergic anti-pruritic and anti-inflammatory effects of Scutellariae Radix (SB) plus Flos Loncerae (FL) extracts in rat peritoneal mast cells (RPMCs), pruritogen-induced scratching mice and 2,4-dinitrofluorobenzene (DNFB)-induced allergic mice. We investigated the effect of SB, FL and SB plus FL extracts on the production of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and histamine in RPMCs, on the scratching behavior in ICR mice, and skin clinical serverity and inflammatory mediators in DNFB-induced allergic hairless mice. RPMCs stimulated with PMA plus A23187 or compound 48/80 significantly increased TNF-α, IL-1β or histamine production compared with media control. However, TNF-α IL-1β or histamine levels increased by PMA plus A23187 or compound 48/80 treatment were significantly inhibited by SB, FL in a dose-dependent manner. Especially, SB plus FL pretreatment had a synergic inhibitory effects on stimulator-induced cytokines (TNF-α and IL-1β) and histamine production. Moreover, SB plus FL administration had a synergic inhibitory effects on the scratching behavior induced by pruritogen (compound 48/80, histamine, serotonin, substance P) in ICR mice. Furthermore, SB plus FL administration had a synergic inhibitory effects on skin damage, inflammatory mediators, leukocyte and mast cell infiltration induced by DNFB in hairless mice. These results suggest that SB plus FL dministration has a potential use as a medicinal plant for treatment against itching and inflammation-related skin disease.
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KEYWORD
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Scutellariae Radix, Flos Loncerae, mast cells, antipruritus, anti-inflammation, synergic effects
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