Studies on medicinal resources from livestock. II. Anti-allergic effects of pig bile. (2) |
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Authors: | T Nakagami N Yamasaki S Taji |
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Institution: | R & D Center, Nippon Meat Packers Inc., Hyoga, Japan. |
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Abstract: | Anti-allergic activities of lyophilized pig bile ( PB]) were examined in mice with picryl chloride-induced contact dermatitis (PC-CD), an experimental model of delayed-type hypersensitivity (DTH; type-IV allergy). PC-CD was markedly inhibited by an oral administration of PB] within 4 h after but not during 8 to 16 h after challenge with picryl chloride. Anti-inflammatory activities of PB] were also examined in acetic acid-induced mouse increased vascular permeability, hypotonic-hyperthermic lysis of rat erythrocytes and carrageenin-induced rat hind paw edema. PB] had no effect on these models. The present study suggests that PB] inhibits PC-CD through its immuno-modulation in the inductive phase of DTH rather than by an anti-inflammatory action. |
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