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OBJECTIVE： To study the effect mechanism of iridoid glycosides extracted from Scrophularia ningpoensis inhibiting cardiomyocytes apoptosis in myocardial infarction model rats. METHODS： The male Wistar rats were randomly divided into sham operation group， model group and S. ningpoensis iridoid glycosides low-dose， medium-dose and high-dose groups， with 10 rats in each group. Myocardial infarction models were established by ligating the left anterior descending coronary artery of the rats， and sham operation group was only threaded without ligation. After the model was established， each administration group was given S. ningpoensis iridoid glycosides suspension intragastrically at three different doses of 50，100，200 mg/kg （by the amount of total glycosides extract） with 10 mL/time， twice a day， for consecutive 7 days. Sham operation group and model group were given constant volume of normal saline intragastrically with same method. The changes of S-T segment of lead ECG Ⅱ were recorded before， after and during 7 days of administration. Cardiac function of rats was examined. The serum levels of LDH， CK-MB， cTnⅠ， NT-pro BNP and TNF-α were determined by colorimetry， immunosuppression or ELISA. The apoptosis of myocardial cells was observed by TUNEL method. SOD activity and MDA content in cardiac myocytes were detected by colorimetry. The expressions of Bcl-2， Bax， Cyt C， Caspase-8， Caspase-9， Caspase-12， Caspase-3 and Calpain in cardiac myocytes were detected by ELISA， enzymolysis colorimetry or enzymatic fluorescence assay. RESULTS： Compared with sham operation， electrocardiogram S-T segment was significantly elevated and the left ventricular end-diastolic diameter and left ventricular end-systolic diameter were significantly increased in the model group； left ventricular ejection fraction and short axis shortening rate decreased significantly； serum levels of LDH， CK-MB， cTnⅠ， NT-pro BNP and TNF-α were increased significantly； there were a large number of yellow-brown apoptotic cells in myocardial tissue； the activity of SOD in myocardial tissue was significantly decreased while the content of MDA was significantly increased； the protein expression level of Bcl-2 and Bcl-2/Bax were significantly decreased， while the levels of Bax， Cyt C， Caspase-3， Caspase-8， Caspase-9， Caspase-12 and Calpain were significantly increased （P＜0.05 or P＜0.01）. Compared with model group， above indexes and pathological changes of myocardial tissue were improved significantly in administration group； the level of Bcl-2 and Bcl-2/Bax in cardiomyocytes increased significantly， while the levels of Bax， Cyt C， Caspase-3， Caspase-8， Caspase-9， Caspase-12 and Calpain decreased significantly （P＜0.05 or P＜0.01）. CONCLUSIONS： S. ningpoensis iridoid glycosides can inhibit the activation of Caspase-3 by inhibiting three apoptotic pathways related to Caspase-8， Caspase-9 and Caspase-12， and then inhibit the apoptosis of cardiomyocytes.
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Objective@#To investigate the safety and efficacy of needle-tract assisted standard percutaneous nephrolithotomy (PCNL) for the treatment of complicated upper urinary tract calculi.@*Methods@#The clinical data of 1 562 patients with complicated upper urinary calculi who received standard PCNL from December 2013 to December 2017 at Department of Urology, the First Affiliated Hospital of Xiamen University were retrospectively analyzed. There were large residual stones in 256 patients through B-ultrasound exploration after standard PCNL, could′t be detected with nephoscope in standard PCNL tracts. 16 F mini PCNL tract were established in 120 cases for treatment of residual stones, while needle-tract were established in order to guide nephroscope to find residual stones in 126 cases. Needle-tract were transferred to 16 F mini PCNL tract for treatment of residual stones in 10 patients if these residual stones could′t be detected through needle-tract. Operation time, change of hemoglobin level after operation, incidence of postoperative complications, time of hospitalization and rate of stone clearance were measured in two groups. The statistical methods used included t test, Wilcoxon rank sum test, and χ2 test.@*Results@#There were 1 to 3 mini tracts (M(QR): 1(1)) established in the mini tracts group and 1 to 7 needle-tracts (M(QR): 3(2)) established in the needle-tract group (Z=-10.57, P=0.000). Compared with mini tract group, the operation time ((62.0±18.0) minutes vs. (84.0±15.5) minutes, t=10.242, P=0.000), hospitalization time ((4.40±0.86) days vs. (5.20±0.81) days, t=7.570, P=0.049), hemoglobin dropped ((1.31±0.47) g/L vs. (2.74±0.63) g/L, t=20.12, P=0.000), and incidence of postoperative complications (7.9% (10/126) vs. 19.2% (23/120), χ2=6.674, P=0.01) of needle-tract group were lower, while postoperative stone clearance rate was higher (89.7% vs. 76.7%, χ2=7.497, P=0.006). No perioperative severe complications such as pleural injury, pneumatothorax, perforation of renal, trauma of abdominal organ occurred in two groups.@*Conclusion@#Needle-tract assisted standard PCNL for the treatment of complicated upper urinary calculi can significantly improve stone clearance rate, reduce operation time, decrease risk of kidney and surrounding organs damage.
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Objective To compare the long-term outcomes of the retropubic tension-free vaginal tape (TVT) versus the transobturator tension-free vaginal tape (TVT-O) for women with stress urinary incontinence (SUI).Methods From July 2001 to June 2011,data of 120 female patients with SUI were retrospectively reviewed,of which 45 patients received TVT treatment,while 75 patients received TVT-O.The median age in TVT group was 45.1 years (range 35-72 years),and the median age in TVT-O group was 50.5 years (range 39-76 years).We retrospectively analyzed the long-term subjective effect,objective effect and the rate of complications in the two groups.Results Median follow-up period was 121 months (range 72-192 months).The complete satisfaction rate was 89％ (40/45) in TVT group,and 92％(69/75) in TVT-O group,with no statistical difference between the two groups.The negative rate of cough test was 84.4％ (38/45) in TVT group,and 76.0％ (57/75)in TVT-O group,with a statistically significant difference.The rate of urinary tract injury was 8.9％ (4/45) in TVT group,and 4.0％ (3/75) in TVT-O group.The rate of thigh pain was 0 in TVT group,and 6.7％ (3/45) in TVT-O group.The rate of micturition frequency and urinary incomplete emptying after operations was 6.7％ (5/75) in TVT group,and 5.3％ (4/75) in TVT-O group.Conclusions The long-term subjective effect between TVT and TVT-O groups was similar.The objective effect in TVT group was better.There was no statistical difference in complication rate between the two groups,which showed different types of complications in different procedures.
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Objective To compare the long-term outcomes of the retropubic tension-free vaginal tape (TVT) versus the transobturator tension-free vaginal tape (TVT-O) for women with stress urinary incontinence (SUI).Methods From July 2001 to June 2011,data of 120 female patients with SUI were retrospectively reviewed,of which 45 patients received TVT treatment,while 75 patients received TVT-O.The median age in TVT group was 45.1 years (range 35-72 years),and the median age in TVT-O group was 50.5 years (range 39-76 years).We retrospectively analyzed the long-term subjective effect,objective effect and the rate of complications in the two groups.Results Median follow-up period was 121 months (range 72-192 months).The complete satisfaction rate was 89％ (40/45) in TVT group,and 92％(69/75) in TVT-O group,with no statistical difference between the two groups.The negative rate of cough test was 84.4％ (38/45) in TVT group,and 76.0％ (57/75)in TVT-O group,with a statistically significant difference.The rate of urinary tract injury was 8.9％ (4/45) in TVT group,and 4.0％ (3/75) in TVT-O group.The rate of thigh pain was 0 in TVT group,and 6.7％ (3/45) in TVT-O group.The rate of micturition frequency and urinary incomplete emptying after operations was 6.7％ (5/75) in TVT group,and 5.3％ (4/75) in TVT-O group.Conclusions The long-term subjective effect between TVT and TVT-O groups was similar.The objective effect in TVT group was better.There was no statistical difference in complication rate between the two groups,which showed different types of complications in different procedures.
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Objective To explore neuroprotective effects of blonanserin on H2O2-induced injury in PC12 cells. Meth?ods PC12 cells were divided into four groups:control group (C group), H2O2-treated group (H group), blonanserin pretreat?ed group (B group) and positive control group (vitamin E- pretreated, E group). The effects of different concentrations of blonanserin (0, 5, 10, 20, 40, 80 and 160 μmol·L-1) on cell proliferation in PC 12 cells were observed. MTT assay was used to detect the cell activity of different groups. The apoptotic rates of different groups were measured by TUNEL assay. The mor?phological changes were observed using inverted microscope and Hoechst 33258 staining. The superoxide dismutase (SOD) vi?ability and malondialdehyde (MDA) levels were detecded by biochemical methods in four groups. Results The appropriate concentration of blonanserin (0-20 μmol·L-1) can promote the growth of PC12 cells. Comparing with the C group, the apoptot?ic rate and MDA level were increased in group H, while the cell viability and the SOD viability were decreased obviously ( P<0.05). Compared with H group, the cell viability, SOD viability were significantly increased, while the MDA level and apoptotic rate were decreased (P<0.05). Conclusion Blonanserin shows neuroprotective effect on H2O2-induced injury in PC12 cells.