Correlation between endothelia cells activation and imbalance of cytokines in pulmonary hypertension of congenital heart disease / 药物分析学报

Objective To explore the correlation between endothelia cells activation and cytokines (ET-1, NO) levels in patients with pulmonary hypertension (PH), and to discuss their roles in the development of PH. Methods Twenty patients with simple ventricular septal defect (VSD) were chosen as controls, and 30 patients with PH were studied. Plasma levels of ET-1 and NO were measured by radioimmunoassay or colorimetric method. Before cardiopulmonary bypass was established, the specimens from right lung were fixed with formaldehyde solution, embedded with paraffin and stained by SP immunohistochemistry. Intercellular adhesion molecule-1 (ICAM-1) expression was measured through the determination of the light density with computer imaging technology. Results Compared with that of the patients with simple VSD, the light density of ICAM-1 and plasma level of ET-1 increased in patients with PH; but plasma level of NO decreased (P<0.05). Positive correlation was observed between ICAM-1 and ET-1/NO (P<0.05). Conclusion Endothelia cells activation and imbalance of ET-1/NO might play an important role in the development of PH.

Correlation between endothelia cells activation and imbalance of cytokines in pulmonary hypertension of congenital heart disease / 西安交通大学学报·英文版

Objective: To explore the correlation between endothelia cells activation and cytokines (ET-1, NO) levels in patients with pulmonary hypertension (PH), and to discuss their roles in the development of PH. Methods: Twenty patients with simple ventricular septal defect (VSD) were chosen as controls, and 30 patients with PH were studied. Plasma levels of ET-1 and NO were measured by radioimmunoassay or colorimetric method. Before cardiopulmonary bypass was established, the specimens from right lung were fixed with formaldehyde solution, embedded with paraffin and stained by SP immunohistochemistry. Intercellular adhesion molecule-1 (ICAM-1) expression was measured through the determination of the light density with computer imaging technology. Results: Compared with that of the patients with simple VSD, the light density of ICAM-1 and plasma level of ET-1 increased in patients with PH; but plasma level of NO decreased (P<0.05). Positive correlation was observed between ICAM-1 and ET-1/NO (P<0.05). Conclusion: Endothelia cells activation and imbalance of ET-1/NO might play an important role in the development of PH.

Experimental Study of Lung and Kidney Aquaporin-1 Expression and Level of plasma ET in Lung-Qi Deficiency Model Rats / 中国中医药信息杂志

Objective To observe the changes of lung and kidney aquaporin-1 expression in Lung-Qi deficiency model rats and to investigate and compare the effects of endothlin(ET)on the expression of lung and kidney aquaporin-1.It provide expremental basis to the theory of mutual relationship of lung and kidney.Method Twenty healthy rats were divided into the model group and the control group.Sample blood was taken and ET was measured by radioimmunoassay.The method of Western blot was used to observe the expression of aquaporin-1 in lung and kidney.Result The expression of aquaporin-1 in kidney was higher in model group than in the control group,while the expression of aquaporin-1 in lung was on the contrary.Compared with the control group,ET in the plasma was higher in the model group(P