Objective To improve pediatric laparoscopic surgical nursing care by establishing and applying standardized management mode, and ensure the operations and the children′s safety. Methods 100 children were respectively selected who received laparoscopic surgery from January to June and from July to December 2015 as control group and test group. Nursing workflow were respectively carried out before and after standardized management mode applied in control group and test group. Then we compared the differences in examination scores, time cost of operative preparation and surgeon satisfaction of specialist nurses between the two groups. Results After the implementation of standardized management, the examination scores of specialist nurses were higher than before. The theoretical and operating scores before implementation were (74.94 ± 2.01) and (81.63 ± 0.92) points, while the scores after implementation were (80.67 ± 3.91) points and (86.22 ± 1.48) points relatively. The differences were statistically significant (t=3.726,7.570, P<0.01);The time cost of operative preparation was significantly shortened from (27.94±1.88) minutes to (23.56±1.61) minutes (t=5.181,P<0.01);In the survey of nurses′satisfaction, the nursing knowledge scores increased from (3.77 ± 0.57) points to (4.17 ± 0.46) points after the implementation, while skill scores lifted from (3.57 ± 0.63) points to (4.00 ± 0.83) points, with all the differences above are statistically significant(t=2.994, 2.282,P < 0.01). The rate of laparoscopic equipment failure was declined, especially the case of equipment failure due to misuse had reduced from 12 to 2 cases (χ2=7.680,P < 0.05). Conclusions Application of standardized management mode can effectively improve the nurses′ professional ability and the rate of normally used equipment in the operation, which improved surgeon′s satisfaction.

Aim To research into the effect of quercetin on coronary artery(CA) damage in diabetic rats and its relationship with Kv1.5.Methods Thirty male rats were randomly divided into blank control group, diabetes group and diabetes group + quercetin group.The effects of quercetin on heart coronary flow (CF) in diabetes rat were observed by CF measurement;the effects of quercetin on CA tension in diabetes rat were detected by CA tension measurement.To investigate the mechanism of quercetin improving CA lesions caused by diabetes, Kv currents of CA VSMC in rats were recorded using whole cell patch clamp, and Kv1.5 mRNA of CA VSMC was determined.Results Compared with normal group, CF of diabetic rats dropped significantly, and CF could increase with the supplement of quercetin in rat diet;the maximum contraction amplitude of CA in response to the contraction of KCl could be reduced with supplement of quercetin in diabetic rat dietary;compared with diabetes group, the contraction of CA from diabetes + quercetin to 4-AP significantly decreased;compared with blank control group, CA VSMC Kv currents of diabetes group had a significant decrease(P<0.05), and dietary supplement of quercetin could improve the above changes;RT-PCR results indicated that the expression of Kv1.5 mRNA on rat CA was the highest in control group, then in diabetes group and the lowest in diabetes+quercetin group.Conclusion Quercetin has protective effect on coronary muscle damage caused by diabetes, which maybe related to Kv1.5 channel.

Objective To study the ultrasonographic characteristics of rotator cuff tear after shoulder trauma,and to evaluate the value of ultrasonography in the diagnosis of rotator cuff tear.Methods Thirty-three patients suspected as rotator cuff tear in acute injuries were detected by ultrasound.Sonographic examinations were compared with surgery,arthrography or MRI.Results Sonographic characteristics include: invisibility of the cuff,focal defect of the rotator cuff,focal abnormal echogenicity within the cuff,focal thinned cuff.The sensitivity of sonography in detecting rotator cuff tear was 92% (22/24),the specificity was 82% (9/11),and the accuracy was 94% (31/33).Conclusions Sonography is the preferred examination method in the diagnosis of rotator cuff tear.

ObjectiveTo investigate the association between serum level of osteopotin(OPN) and disease activity of rheumatoid arthritis (RA) patients, and explore the importance of OPN in the pathogenesis of interstitial lung disease (ILD) in RA. MethodsSixty-five RA patients and 20 healthy controls were pros-pectively enrolled. RA patients were divided into active group(n=43) and inactive group(n=22), and ILD groups (n=24) and non-ILD group (n=41). Enzyme-linked immunosorbent assay (ELISA) was used to detect the serum levels of OPN in patients with RA and healthy controls, and the relationship between OPN and other clinical and laboratory findings were analyzed.Results① Serum OPN tended to be significantly higher in RA patients (median, 18.0 ng/ml) than in the healthy controls (median, 14.3 ng/ml), P<0.01; ②The serum level of OPN in RA patients showed a significant positive correlation with the course of disease, numbers of tender joints , ESR and CRP, but no positive relationship was found in number of swollen joints; ③ The serum level of OPN was significantly higher in RA-ILD patients(median, 20.0 ng/ml) than that in non-lLD (median, 17.0 ng/ml, P<0.05). And there was remarkable negative correlation between the concentration of serum OPN and the value of PaO2, but no association was found with pulmonary function %VC and %DLCO. ④ Compared with the non-ILD group, the ILD group had more active disease in terms of tender joint counts and swollen joint counts, ESR, CRP(P<0.01) and the serum titer of RF-IgM,(P<0.05). ConclusionOPN plays a role in the pathogenesis of RA and is related to the disease activity. It may serve as an active disease inflammatory marker of RA . OPN may be involved in the pathogenesis of RA related ILD and is associated with the severity of pulmonary damage.

Objective To explore the clinical application value of plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP) in diagnosis and treatment of symptomatic patent ductus arteriosus (sPDA) in preterm infants. Methods A total of 107 preterm infants with gestational age of 28-32 weeks and birth weight less than 1500 g who were admitted to the neonatal intensive care unit from October 2013 to September 2014 were recruited. Plasma NT-proBNP were on 4th and 7th day after birth. The echocardiography examination was performed within 30 minutes after the blood was drawn. According to the echocardiography examination on 4th day after birth, the infants were divided into the patent ductus arteriosus (PDA) group (n?=?39) and the control group (n?=?68). According to whether there were signiifcant hemodynamics changes of ultrasonography and clinical symptoms, the PDA group were classiifed into the sPDA group (n?=?20) and the asymptomatic PDA group (asPDA, n?=?19). Then according to whether ibuprofen was taken, the sPDA group was further divided into treatment group (n?=?13) and non-treatment group (n?=?7). Results On the 4th day after birth, the level of plasma NT-proBNP in the sPDA group was signiifcantly higher than that in asPDA group, and the level of plasma NT-proBNP in asPDA group was signiifcantly higher than that in the control group (P??0.05). In the treatment group, the level of plasma NT-proBNP on the 7th day after birth was signiifcantly lower than that on the 4th day after birth (P??0.05). In PDA group, the level of plasma NT-proBNP on the 4th day after birth was positively correlated with ductus arteriosus (DA) diameter, ratio of the left atrium to aortic root diameter (LA/AO ratio) and transductal diameter-to-left pulmonary artery ratio (TDD/LPA) (r?=?0.498-0.670, respectively). The area under receiver operator characteristic (ROC) curve for prediction of sPDA by the plasma NT proBNP on the 4th day after birth was 0.969 (95%CI:0.938-1.000). When the NT-proBNP was 13964 pg/ml on the 4th day after birth, the sensitivity for diagnosis sPDA was 95%, the speciifcity was 95.4%. Conclusions The level of plasma NT-proBNP is signiifcantly higher in preterm infants with sPDA and is decreased after treatment. Plasma NT-proBNP on the 4th day after birth is a sensitive marker for predicting sPDA. Dynamic monitoring of plasma NT-proBNP has important clinical value in selection of the treatment strategy in preterm infants with PDA.

Objective To investigate the role of Toll like receptor 4/nuclear factor-κB (TLR4/NF-κB) signal pathway on myocardial dysfunction after cardiac arrest-cardiopulmonary resuscitation (CA-CPR) in animal model. Methods Twenty-six pigs were randomly divided into sham group (n = 6), CA-CPR 12 hours group (n = 10) and CA-CPR 24 hours group (n = 10). The model of CA-CPR was reproduced by endocardial electrical stimulation for 8 minutes followed by CPR, and the pigs in sham group were only given anesthesia and tracheal intubation. The changes in hemodynamics including mean arterial pressure (MAP) and cardiac output (CO), as well as morphology and ultrastructure of myocardial cells were observed before and after CPR. The levels of serum tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were determined by enzyme linked immunosorbent assay (ELISA), and protein and mRNA expressions of TLR4/NF-κB in the myocardium were determined by Western Blot and real-time fluorescence quantitative reverse transcription-polymerase chain reaction (RT-PCR), respectively. Results Hemodynamic disturbance and myocardial serious injury were observed in CA-CPR groups. Compared with sham group, the levels of serum TNF-α were markedly increased 0.5 hour after return of spontaneous circulation (ROSC) in CA-CPR 12 hours and 24 hours groups (pg/L: 62.49±6.66, 48.39±2.37 vs. 10.75±0.74, both P < 0.05), and peaked at 2 hours (pg/L: 70.93±5.51, 66.03±2.60 vs. 10.87±0.91, both P < 0.05) followed by a gradual decline. The levels of serum IL-6 at 0.5 hours after ROSC in CA-CPR 12 hours and 24 hours groups were markedly higher than those of sham group (pg/L: 14.42±1.99, 11.23±1.12 vs. 8.75±0.74, both P < 0.05), and peaked at 12 hours (pg/L: 36.50±2.91, 38.15±1.26 vs. 8.88±0.62, both P < 0.05) followed by a gradual decline. The protein expressions of TLR4 and NF-κB in the myocardium were significantly increased in CA-CPR 12 hours and 24 hours groups as compared with sham group [TLR4 protein (gray value): 0.11±0.03, 0.24±0.05 vs. 0.05±0.02; NF-κB protein (gray value): 0.27±0.04, 0.24±0.03 vs. 0.09±0.02, all P < 0.05]. The mRNA levels of TLR4 in CA-CPR 12 hours and 24 hours groups were increased by approximately (9.93±1.07) folds and (9.21±1.27) folds of sham group respectively, and NF-κB mRNA expressions were increased by (4.44±0.96) folds and (6.09±0.81) folds of sham group respectively (all P < 0.01). Conclusion Activation of TLR4/NF-κB signal pathway may be one of the main pathological mechanisms of post resuscitation myocardial injury in a porcine model of CA-CPR.

ObjectiveTo examine whether Shenfu injection (SFI) reduces post-resuscitation myocardial dysfunction in a pig model by modulating expression imbalance of transcription factors of regulatory T cell, namely GATA-3 and T-bet.Methods Thirty pigs were randomly divided into sham group (n = 6) and cardiopulmonary resuscitation (CPR) group (n = 24) according to the random number table method, and the pigs in the CPR group were randomly subdivided into normal saline (NS) group, epinephrine (EP) group, and SFI group (n = 8 per group). After 8minutes of untreated ventricular fibrillation (VF) followed by 2 minutes of CPR, animals in three groups respectively received central venous injection of either 20 mL SFI (1.0 mL/kg, SFI group), EP (0.02 mg/kg, EP group) or NS (NS group). Blood samples were obtained before VF and 0.5, 2, 6 hours after restoration of spontaneous circulation (ROSC), and the parameters of hemodynamics and oxygen metabolism were determined. Surviving pigs were sacrificed at 24 hours after ROSC, the pathological changes in myocardium were observed, the levels of interleukin-4 (IL-4), tumor necrosis factor-α (TNF-α) andγ-interferon (IFN-γ) were measured by enzyme linked immunosorbent assay (ELISA), and expressions of protein and mRNA of GATA-3 and T-bet were determined by Western Blot and quantitative real-time polymerase chain reaction (RT-qPCR), respectively.Results Six pigs of three resuscitation groups were successfully resuscitated. The CPR time, number of defibrillation, defibrillation energy, and ROSC time were significantly decreased in the EP and SFI groups compared with those in the NS group. Compared with the sham group, the parameters of left ventricular systolic function and oxygen metabolism were significantly decreased, myofibril organelles were extensively damaged, and progressive and severe deterioration of the myocardium was found, and mitochondrial structure was not recognizable in the NS group; the level of IL-4 in myocardium were markedly decreased, while that of TNF-α, IFN-γand IFN-γ/ IL-4 [reflecting helper T cell 1/2 (Th1/Th2)] were significantly increased. Protein and mRNA expressions of GATA-3 were markedly reduced in the myocardium of pigs in the NS group compared with that of the sham group at 24 hours after ROSC, while T-bet was significantly increased. Compared with the NS group, animals treated with SFI had minimal myocardial intracellular damage, with decreased heart rate (HR, bpm: 90.33±3.79 vs. 106.83±5.36) and increased mean arterial pressure (MAP), cardiac output (CO), oxygen delivery (DO2), and oxygen consumption (VO2) at 6 hours after ROSC [MAP (mmHg, 1 mmHg = 0.133 kPa): 107.67±1.96 vs. 86.83±1.85, CO (L/min): 2.47±0.08 vs. 2.09±0.04, DO2 (mL/min): 364.31±4.21 vs. 272.33±3.29, VO2 (mL/min): 95.00±2.22 vs. 82.50±2.28, allP<0.05]. Compared with the NS groups at 24 hours after ROSC, level of IL-4 was markedly increased in myocardial cells (ng/L: 33.80±3.06 vs. 16.15±1.34,P< 0.05), while the levels of TNF-α, IFN-γ and IFN-γ/IL-4 were lowered significantly [TNF-α (ng/L): 18.16±0.71 vs. 29.64±1.89, IFN-γ (ng/L): 373.75±18.36 vs. 512.86±27.86, IFN-γ/IL-4: 16.15±1.34 vs. 33.80±3.06, allP< 0.05], and myocardial T-bet protein and mRNA expressions were reduced [T-bet protein (gray value): 0.41±0.07 vs. 0.59±0.11, T-bet mRNA (2-ΔΔCt): 4.37±0.21 vs. 7.57±0.55, bothP< 0.05], furthermore, myocardial GATA-3 protein and mRNA expressions were significantly up-regulated in SFI group [GATA-3 protein (gray value): 0.25±0.07 vs. 0.16±0.07, GATA-3 mRNA (2-ΔΔCt): 0.63±0.07 vs. 0.34±0.05, bothP< 0.05]. The parameters in SFI group were significantly improved compared with those of the EP group.ConclusionsMyocardial immune dysfunction is induced by Th1/Th2 imbalance following myocardial injury subsequent to CPR in pigs. SFI can attenuate myocardial injury and regulate myocardial immune disorders, protect post-resuscitation myocardial injury by modulating expression imbalance of transcription factors GATA-3 and T-bet.

Objective To investigate the proper inner control genes suitable for mRNA expression level comparison of aging rat tissues.Methods Real-time reverse transcription PCR was used to examine in aging rat tissues the expression level of G3pd(glyceraldehyde-3-phosphate dehydrogenase),ACTB(?-actin),H3f3b(H3 histone,family 3B),Arbp(acidic ribosomal phosphoprotein P0)and 18S(18S ribosomal RNA).Results The most stably expressed housekeeping gene in aging rat kidney was ACTB,in heart and lung G3pd showed the minimum variation;Arbp expression was the most stable one in different tissues.Conclusion For aging rat intra-tissue mRNA normalization at least two housekeeping genes should be used: one is the ribosomal RNA gene 18S and another one is Arbp.

Objective To observe the toxicity and effection of three dimensional conformal radiation therapy(3DCRT)based on conventional fractionation radiotherapy in combination with chemotherapy in non-small-cell lung cancer(NSCLC).Methods 62 NSCLC patients with stage Ⅲ were chosen as research objects.All the patients received chemotherapy two cycles with NP regimen firstly(NVB 40 mg d1,8,DDP 30 mg d2-5),then they accepted radiotherapy in twentith day after chemotherapy when hemocyte got normal.In the first half period of the radiotherapy,conventional radiotherapy were given with 2 Gy/f,after the dose got 40 Gy/20 f,then three dimensional conformal radiation therapy were given with 4～6 Gy/f every 1 to 2 days until the total dose got 24～30 Gy/4～6 f.The patients with supraclavicular lymphnode metastatic carcinoma received conventional fractionation radiotherapy with 60Co or 6 MV-X ray combined electronic ray until the dose(DT)up to 64～66 Gy.After radiotherapy,the patients accepted chemotherapy two cycles with NP regimen again.Results All the 62 patients completed treatment plan,and follow-up survey had lasted for 3 years.The short-term efficacy was evaluated in 3 months after radiotherapy. Among 62 patients, 9 cases gained a complete remission(CR),40 cases partial remission(PR),and the total remission was 79.0%.The acute toxicity showed acute radiation esophagitis,radiation pneumonia and acute gastrointestinal reaction.However,expectant treatment was effective.The 1,2,3 year survival rate was 7 1.0%,48.4%,30.6%,respectively.The 1,2,3 year local control rate was 80.6%,62.9%,40.3%,respectively.Conclusion 3DCRT based on conventional fractionation radiotherapy for NSCLC have good effection and mild toxicity.

Aim To investigate the vasodilatory effect of Ferulic acid on in vitro rat coronary artery and its possible mechanism. Methods By using the mi-crovessel tension recorder system, the vasodilatory effect of FA on resting and contractin-vitro rat coronary artery was determined;the influence of endothelial in-tegrity to FA-induced vasorelaxation was observed; the relationship of FA on [ Ca2+] ex-influx-induced and [ Ca2+] in-efflux-induced contractions was discussed;the mechanism of vasodilatory effect of FA was ex-plored by applying the inhibitors of KCa(TEA),KATP channel ( Gli ) , KIR channel ( BaCl2 ) , KV ( 4-AP ) , NOS( L-NAME) and COX( Indo) . Results FA had no effect on the resting tension of in vitro rat coronary artery. FA dilated the in-vitro rat coronary artery pre-treated with KCl ( 60 mmol · L-1 ) , U46619 ( 1 μmol · L-1 ) and PE ( 10μmol · L-1 ) in a concentration-dependent fashion ( P < 0. 05 ) . FA inhibited the [ Ca2+] ex-influx-induced and [ Ca2+] in-efflux-in-duced contractions significantly ( P <0. 05 ) . 4-AP ( 1 mmol· L-1 ) restrained the diastolic function of FA, while TEA, Gli, BaCl2、L-NAME, Indo had no obvious effect ( P >0. 05 ) . Conclusion The diastolic func-tion could be related to the activation of KV channel on vascular smooth muscle cells, the free Ca2+ from Sar-coplasmic reticulum cells and blockade extracellular Calcium channel do not depend on KCa, KATP, KIR channel, nor the endothelial function.