中国医学科学杂志(英文版)
中國醫學科學雜誌(英文版)
중국의학과학잡지(영문판)
CHINESE MEDICAL SCIENCES JOURNAL
2003年
1期
50-53
,共4页
丁学琴%刘贵明%王俊科%盛卓人
丁學琴%劉貴明%王俊科%盛卓人
정학금%류귀명%왕준과%성탁인
carbon monoxide%hypoxia%cGMP
Objective.To investigate the role of endogenous carbon monoxide(CO)in hypoxia. Methods. After rats were inhaled with hypoxic gases and the heme oxygenase inhibitor ZnPPIX was administered,we measured the CO levels in plasma,liver,lung and kidney. Meanwhile plasma cGMP levels were observed. Furthermore,we recorded the changes of hemodynamic and blood gases. Results. Acute mild hypoxia(10%O2)significantly increased CO levels in plasma as well as liver,kidney and lung,while acute severe hypoxia(5%O2)significantly decreased CO levels in plasma as well as liver,kidney and lung. In addition,the former significantly elevated cGMP levels in plasma while the latter markedly reduced cGMP levels in plasma. The hemodynamic changes occurred in accordance with the changes of carbon monoxide. Conclusions. Our results indicate,for the first time ,that the endogenous carbon monoxide plays an important role in regulating the vessel tone during hypoxia.
