Changes of pulmonary ?_1-and ?-adrenergic receptors during endotoxin-induced acute lung injury in rats / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12)1989.
Article
in Chinese
| WPRIM
| ID: wpr-516234
ABSTRACT
Changes of pulmonary ?_1-and ?-adrenergic receptor (?_1-AR and ?-AR)during endotoxin-induced acute lung injury in rates were oberved to find out the rela-tionship between them and the mechanism of change. Results showed that there was amarked decrease of B_max of both ?_1-AR and ?-AR by 35% and 43% respectively, dur-ing acute lung injury. The down regulation of ?-AR might be one of causes of acutelung injury while that of ?_1-AR seems to be a protective response. Active oxygen playedan important role in endotoxin-induced down regulation of AR in the rat lungs. The increa-sed level of norepinephrine and epinephrine was not the main factor that initiate the downregulation of AR. Intravenous injection of tumor necrosis factor (5?10~6U/kg ) exerts noiafluence on the changes of pulmonary AR in rats.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Pathophysiology
Year:
1989
Type:
Article
Similar
MEDLINE
...
LILACS
LIS