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Change of carbon monoxide in plasma and tissue during acute hypoxia / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal ; (4): 50-53, 2003.
Article in English | WPRIM | ID: wpr-244867
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the role of endogenous carbon monoxide (CO) in hypoxia.</p><p><b>METHODS</b>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 change of hemodynamic and blood gases.</p><p><b>RESULTS</b>Acute mild hypoxia (10% O2) significantly increaed 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 change occurred in accordance with the changes carbon monoxide.</p><p><b>CONCLUSION</b>Our results indicate, for the first time, that the endogenous carbon monoxide plays an important role in regulating the vessel tone during hypoxia.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Blood / Blood Gas Analysis / Carbon Monoxide / Acute Disease / Rats, Wistar / Cyclic GMP / Heme Oxygenase (Decyclizing) / Hemodynamics / Kidney / Liver Limits: Animals Language: English Journal: Chinese Medical Sciences Journal Year: 2003 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Blood / Blood Gas Analysis / Carbon Monoxide / Acute Disease / Rats, Wistar / Cyclic GMP / Heme Oxygenase (Decyclizing) / Hemodynamics / Kidney / Liver Limits: Animals Language: English Journal: Chinese Medical Sciences Journal Year: 2003 Type: Article