Résumé
Objective Paeoniflorin ( PAE) is a potential neuroprotective agent.In this study, we investigated the protective effect of PAE on cerebral ischemia/reperfusion ( CI/R) injury in gerbils and its underlying mechanisms. Methods The model of CI/R was established in 50 gerbils by bilateral common carotid occlusion for 10 min followed by 6-hour reperfusion.Then the animals were equally randomized into five groups:sham, model, 5 mg/kg PAE, 10 mg/kg PAE, and 20 mg/kg PAE.The latter three groups were treated with intraperitoneal injection of PAE once daily for 3 days before carotid occlusion, while the former two groups with saline only, all at 10 ml/kg.Stroke indexes were calculated during the reperfusion.The contents of endogenous neuropeptides, endothelin and calcitonin gene-related peptide ( CGRP) in the plasma were measured by radioimmunoassay.The levels of superoxide dismutase ( SOD) and malondialdehyde ( MDA) in the brain tissue homogenate were determined by the method of xanthine oxidase. Results The 5, 10, and 20 mg/kg PAE groups showed significantly decreased stroke index (14.8 ±3.6, 12.3 ±2.0, and 12.7 ±1.4) as compared with the model group (18.4 ±2.9) (P<0.05), but remarkably increased SOD activity ([99.30 ±9.71], [106.85 ± 15.13] , and [110.25 ±14.90] vs [86.54 ±10.22] nU/mgPro, P<0.05) .The MDA content was significantly lower in the 10 and 20 mg/kg PAE groups than in the model group ([69.23 ±8.42] and [65.91 ±7.64] vs [94.76 ±10.30] μmol/mgPro, P<0.01). The plasma endothelin level was markedly decreased in all the PAE groups in comparison with the model group ([24.06 ±5.37], [19.62 ±5.60] and [21.08 ±4.64] vs [30.52 ±7.13] ng/L, P<0.05). Conclusion The protective effect of PAE pretreatment in CI/R injury appears to be associated with the inhibition of the brain free radicals, lipid peroxidation and endothelin production.
Résumé
Objective To explore the effect of using hydrochloricde lidocaine plasmagel in the urethral catheterization of male patients.Methods Divided 103 patients into the experimental group and the control group randomly.There were 53 cases in the experimental group and using hydrochloricde lidocaine plasmagel for the urethral catheterization.There were 50 cases in the control group and using the traditional paraff in urethral catheterization.Evaluated the pain degree of patients by VAS,and then monitored the blood press and the heart rate at the same time.Results There was a significant difference between these 2 groups in the VAS,P0.05.Conclusion Using hydrochloricde lidocaine plasmagel in the urethral catheterization of male patients is an effective method to alleviate the pain of patients and then decrease the incidence rate of complication.