Persistent mucin glycoprotein alterations in equine recurrent airway obstruction.

Persistent mucin glycoprotein alterations in equine recurrent airway obstruction.
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马复发性气道阻塞中的持续粘蛋白糖蛋白改变。

DOI:
10.1152/ajplung.2001.281.3.l704
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发表时间:
2001
期刊:
American journal of physiology. Lung cellular and molecular physiology
影响因子:
--
通讯作者:
Robinson,NE
Robinson,NE
中科院分区:
--
文献类型:
--
作者:
Jefcoat,AM;Hotchkiss,JA;Gerber,V;Harkema,JR;Basbaum,CB;Robinson,NE

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Horses with the episodic asthmalike condition of recurrent airway obstruction (RAO) have bouts of inflammation and bronchoconstriction associated with indoor housing. To assess the potential differences in airway secretions between RAO-affected and control horses, methods to quantify mucus secretions were developed and applied to bronchoalveolar lavage fluid. The relative difference in the amount of mucin glycoproteins between control and RAO-affected horses was assessed with a carbohydrate side chain-specific monoclonal antibody (4E4) in an enzyme-linked immunosorbent assay and by carbohydrate-specific enzyme-linked lectin assays. Significantly increased levels of 4E4-immunoreactive glycoprotein and the mucin-associated carbohydrates fucose (α-1,2 linkage) andN-acetylglucosamine were detected in RAO-affected horses in acute disease. RAO-affected horses in remission maintained significantly elevated levels of α-1,2-fucose andN-acetylglucosamine, whereas the 4E4-immunoreactive glycoprotein levels displayed a trend toward an increase over control levels. These results indicated that persistent changes in the quantity and/or quality of mucus glycoproteins occurred in the RAO-affected horses.
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