[Effect of Paroxysmal Atrial Fibrillation on Parameters Monitored by Transpulmonary Thermodilution Method].

Objective: To investigate the effect of atrial fibrillation on the accuracy of parameters monitored by transpulmonary thermodilution method.

Methods: Totally 12 patients from emergency intensive care unit with paroxysmal atrial fibrillation were enrolled. The hemodynamic parameters such as heart rate, mean arterial pressure, cardiac index, systemic vascular resistance index, intrathoracic blood volume index, and extravascular lung water index were monitored by transpulmonary thermodilution method before paroxysmal atrial fibrillation and during atrial fibrillation, the number of B-lines was detected by lung ultrasonography before and during paroxysmal atrial fibrillation.

[Study the effects of Salvia miltiorrhiza monomer IH764-3 on the expression of matrix metalloproteinase in lungs of rats exposed to Paraquat (PQ)].

Objective: To observe the expression of the matrix metalloproteinase 2 (MMP-2) and membrane-type 1 metalloproteinase (MT1-MMP) in lung of rats exposed to paraquat (PQ) and the effects of Salvia miltiorrhiza monomer IH764-3 on above expression.

Methods: Ninety adult healthy Sprague-Dawley (SD) rats were randomly divided into the control group (group A, 6 rats), the exposure group (group B, 42 rats) and the group treated by Salvia miltiorrhiza monomer IH764-3 (group C, 42 rats). The group B and C were treated intragastrically with 1ml of PQ (50 mg/kg), and the group A was treated intragastrically with normal saline.

[Pathologic changes and expression of Heme oxygenase-1 in paraquat-induced renal injury].

Objective: To study the mechanism of paraquat-induced renal injury in rats.

Methods: Adult healthy Sprague-Dawley (SD) rats (female and male in half) were randomly divided into two groups, the control group and the paraquat poisoned group. The rats in the paraquat poisoned group were treated with PQ (25 mg/kg) intraperitoneally while the rats in the control group were treated with the same dose of normal saline.