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|Title:||Endogenous histamine in immune inflammation in 6-day-old air pouch of facsimile synovium|
|Authors:||Sin, Y.M. |
|Citation:||Sin, Y.M.,Ang, L.N. (1990). Endogenous histamine in immune inflammation in 6-day-old air pouch of facsimile synovium. International Archives of Allergy and Applied Immunology 91 (2) : 181-185. ScholarBank@NUS Repository.|
|Abstract:||Immune inflammation was induced by injecting bovine serum albumin (BSA) into 6-day-old air pouches of mice presensitized with 2 weekly injections of an emulsion containing BSA and complete Freund's adjuvant. Control mice were also similarly pretreated with the same emulsion without BSA. The results show that the numbers of exudate leucocytes in the air pouches of both test and control groups increased and peaked at 4 h and then declined after the antigen challenge. However, the values of exudate leucocytes in the test animals at 4- and 24-hour intervals were significantly lower than those of the control. On the other hand, exudate histamine of the test group peaked at 1 h, and this was significantly higher than that of the control. Injection of exogenous histamine or histaminase with the challenging antigen increased the number of exudate leucocytes in both test and control animals. The findings thus suggest that endogenous histamine released in immune inflammation most probably plays the same role as in non-immune inflammation by enhancing the vascular permeability at the inflammatory site in the early phase of the inflammatory reaction.|
|Source Title:||International Archives of Allergy and Applied Immunology|
|Appears in Collections:||Staff Publications|
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