plasma diamine oxidase activity in asthmatic children
Clicks: 270
ID: 133521
1996
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Abstract
Histamine plays an important role in the development of asthmatic symptoms. Diamine oxidase (DAO histaminase), which inactivates histamine, is located in the intestine and kidney and is released into plasma. Plasma DAO activity in asthmatic children was measured by a recently developed high performance liquid chromatographic method using histamine as the DAO substrate. Diamine oxidase activity was higher in severely asthmatic children than in those with mild asthma. A time course study during the acute exacerbation phase revealed that DAO activity rose during acute asthmatic attacks and then decreased gradually over several days. Although the mechanisms of plasma DAO activity increase during acute asthmatic attacks could not be explained, data showed that plasma DAO activity is an important index of histamine metabolism in asthmatics and may relate to some mechanisms of acute exacerbation of airway inflammation. Consequently, fluctuations in plasma DAO can be used as one of various indices of instability in management of asthma.
| Reference Key |
toyoshima1996allergologyplasma
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|---|---|
| Authors | ;Kyoichiro Toyoshima;Ikuo Imamura;Satoru Doi;Toshishige Inoue;Isamu Takamatsu;Norihide Murayama;Makoto Kameda;Michiaki Hayashida;Hiroyuki Fukui |
| Journal | current drug discovery technologies |
| Year | 1996 |
| DOI |
10.2332/allergolint.45.141
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| URL | |
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