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  • Title: [The change of angiotensin II receptors in children with left-to-right shunt].
    Author: Zhou TF, Qiao LN, An Q, Zhu Q, Dong LQ, Guo YH, Wang WD.
    Journal: Sichuan Da Xue Xue Bao Yi Xue Ban; 2005 Jan; 36(1):28-30. PubMed ID: 15702773.
    Abstract:
    OBJECTIVE: To explore the change of AT1 and AT2 receptors in children with left-to-right shunt. METHODS: Lung tissue was obtained from 20 children with left-to-right shunt by biopsy during operation, and lung tissue from 5 children by autopsy was used as control. The above specimens were stained by immunohistochemistry techniques for detecting AT1 and AT2 receptors. Histomorphometric study was done to measure the IOD value of pulmonary small vascular wall via the staining of AT1 and AT2 receptors, and the diameter of these vessels was 15-100 microm. RESULTS: The IOD values of pulmonary small vascular walls obtained from via the staining of AT1 and AT2 receptors in children with left-to-right shunt were higher than the IOD values in control group (P=0.000). CONCLUSION: The expression of AT1 and AT2 receptors in pulmonary small vascular walls in children with left-to-right shunt was higher than that of the control. It may provide a sound rationale for the pharmacological management of children with left-to-right shunt by use of ACEI or AT1 receptor antagonist.
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