Effects of Selective Inhibition of PDE4 by YM976 on Airway Reactivity and Cough in Ovalbumin-Sensitized Guinea Pigs

Author(s):  
J. Mokrý ◽  
A. Urbanová ◽  
I. Medvedová ◽  
M. Kertys ◽  
P. Mikolka ◽  
...  





1991 ◽  
Vol 88 (4) ◽  
pp. 604-612 ◽  
Author(s):  
D BERGREN ◽  
R TOWNLEY ◽  
D MARQUARDT ◽  
H GRUBER ◽  
V BERGREN




1988 ◽  
Vol 64 (5) ◽  
pp. 1773-1778 ◽  
Author(s):  
W. Cibulas ◽  
S. M. Brooks ◽  
C. G. Murlas ◽  
M. L. Miller ◽  
R. T. McKay

The influence of cyclophosphamide-induced granulocyte depletion on toluene diisocyanate (TDI)-related changes in airway reactivity and pathology was assessed in guinea pigs. Twelve cyclophosphamide-treated and 12 control animals comprising each group were studied physiologically before and 2 h after a single 10-min exposure to 3 ppm of TDI. Reactivity was determined in intact unanesthetized animals by measuring specific airway conductance before and during intravenous acetylcholine infusion. After testing, tracheal tissue for light microscopic examination was obtained from three hyperreactive guinea pigs in each exposed group and compared with tissue from treated and control animals (n = 3 each) that had not been TDI exposed. Cyclophosphamide treatment caused substantial decreases in both circulating and airway granulocyte counts. However, the incidence and degree of bronchial hyperreactivity that occurred 2 h post-TDI was similar in the untreated and treated groups. Our results indicate that TDI-induced bronchial hyperreactivity 1) occurs shortly after a brief high concentration exposure and 2) appears independent of circulating or airway granulocyte counts.



Author(s):  
Juraj Mokry ◽  
Anna Urbanova ◽  
Martin Kertys ◽  
Ivana Medvedova ◽  
Peter Mikolka ◽  
...  


1993 ◽  
Vol 5 (2) ◽  
pp. 251-263 ◽  
Author(s):  
Taro Mizutani ◽  
Takahiro Kobayashi ◽  
Hiroshi Naito




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