Objective:To study the anti-depression mechanism of Shugan Jiannao Tiaoyu Tablets(SJTT) and provide evidene for clinical application. Methods: Depressive rat model were established by unpredictable stress with raising alone. Model rats were randomly divided into 5 groups, each 12, then each group was administrated through intragastric perfusion daily with the rate of 1.0ml/100g according to their weight before stimulation: fluoxetine group with 0.75 mg/kg, low-dose group of SJTT with 1.8g/kg, high-dose group of SJTT with 3.6g/kg, normal group and model group with 1.0ml/100g of isotonic Na chloride. The whole course lasted for 21 days from the first day of model making to the day of death. The pathologic character of hippocampus was observed by light microscopic examination. The change of cell ultramicrostructure was observed by transmission electron microscope. The expression of C-FOS and C-JUN were detected by immunohistochemistry. Results: SJTT could reduce the neuron damage of hippocam. Compared with model group, the gray scale of immunoreaction positve cells of C-FOS and C-JUN increased in high dose group of SJTT. Conclusion:SJTT can decrease the neuron damage induced by stress in hippacam and had anti-depression effect.

Objective To evaluate the mechanism of immunosuppressive activity of 1,25-dihydroxyvitamin D_3 and provide a theoretical basis for clinical use. Methods Different inbred strain male BALB/C (H-2d) and male C57BL/6(H-2b) mice were used as skin transplantation donors and recipients, respectively. After operation C57BL/6 mice were conditioned with 1,25-dihydroxyvitamin D_3 2.5 ??g/kg every day, Cyclosporine A (CsA) po 25 mg/kg every day separately or unitedly. Ten days after transplantation, the recipients were sacrificed, and the spleens were collected. The mouse splenic T lymphocytic subsets, mixed lymphocyte reaction (MLR), the activity of natural killer (NK) cells were determined. Results The mean survival time (MST) of skin allografts was prolonged from ( 9.75 ? 0.89 ) days to ( 13.13 ? 1.13 ) days by treatment of the recipient mice with 1,25-dihydroxyvitamin D_3. CD3 + and CD4 + subset percentage in 1,25-dihydroxyvitamin D_3 group was lower than that in control group CD3 + ( 40.19 ? 4.25 )% vs ( 48.70 ? 7.19 )%, P

Objective To evaluate the function of the domestic sickbeds set up by our hospital in the prevention and cure of non infectious chronic diseases. Methods A perspective study was made through offering health education, guidance and home treatment to 116 cases using domestic sickbeds and employing the method of self management. In addition, the clinical treatment results of the patients and the rate of their satisfaction towards domestic sickbeds were surveyed, analyzed and assessed. Results Through long term follow up visits, it was found that compared with the intermittently standardized group and the completely non standardized group, the control rate of chronic diseases in the standardized group with systematic management and treatment was significantly higher while the rates of complications and mortality were much lower (P

Objective To compare the dosimetric difference between jaw tracking technique (JTT) and static jaw technique (SJT) in dynamic intensity-modulated radiotherapy (IMRT) for preoperative radiotherapy of rectal cancer patients.Methods Jaw tracking and static jaw were used to develope the intensity-modulated plans for 10 patients respectively.For all the patients,the dose to surrounding tissues was minimized as low as possible,the 95％ volume of the planning target volume (PTV) and planning gross target volume (PGTV) satisfy the prescribed dose.The doses of the planning target volumes,organs at risk and normal tissue were detected by dose-volume histogram.Two groups of treatment plan dose were verified by ionization chamber array 2D-Array 729 and OCTAVIUS (PTW) phantom.Results The treatment plans of two groups could satisfy the clinical requirements.There was no significant difference between the maximum and the mean dose of target.The volumes of jaw tracking dynamic intensity-modulated radiotherapy were lower,including the V5,V10,V20,V30,V40 (volumes receiving 5,10,20,30 and 40 Gy,respectively),mean dose(D) for body and V10,V20,V30,D for bilateral femoral head,bladder,and small intestine.There was significant difference for the results (t =-2.32-12.24,P ＜0.05).The verification results showed that the treatment plans were all passed the dosimetric verification.Conclusions Jaw tracking intensity-modulated radiotherapy and jaw fixed IMRT plan could achieve equal dose coverage in patients with rectal cancer,while jaw tracking techniques could reduce normal tissue dose and organs at risk dose.

Objective To explore the effect and mechanism of magnesium on calcification induced by hyperphosphate.Methods Vascular smooth muscle cells (VSMCs) were primarily cultured in vitro and induced calcification by β-glycerophosphate (β-GP).VSMCs were randomly divided into control group,high phosphorus group (10 mmol/L β-GP),magnesium intervèntion group(10 mmol/L β-GP + 3 mmol/L MgSO4) and 2-aminoethoxy-diphenylborate (2-APB,an inhibitor of magnesium transporter) intervention group(10 mmol/L β-GP+3 mmol/L MgSO4+ 10-4 mol/L 2-APB).Calcium deposition and alkaline phosphatase (ALP) activity were measured by alizarin red staining,quantification of calcium and euzyme linked immunosorbent assay.RT-PCR and Western blotting were used to observe the expression of core binding factor α-1 (Cbfα-1) mRNA and protein,respectively.In vivo,male Sprague-Dawley rats (n=24) were randomly divided into control group (methylcellulose+high phosphorous diet),vascular calcification group (adenine suspension + high phosphorous diet),high magnesium intervention group(adenine suspension+high phosphorous and magnesium diet).The aortic pulse wave velocity (PWV) was measured,and vascular calcification was determined by von Kossa stain and quantification of calcium.Cbfα-1 in aortic was measured by immunohistochemistry.Results In vitro,compared with high phosphorus group,calcification,ALP activity (P ＜ 0.05) and Cbfα-1expression in VSMCs were significantly decreased in magnesium intervention group after incubation for 14 days,but the addition of 2-APB might inhibit the protective effect of magnesium on VSMCs.Dynamic observation of Cbfα-1 showed that magnesium significantly inhibited the expression of Cbfα-1 (P ＜ 0.05) on the third day and the inhibitory role was obviously increased in a time-dependent manner.Consistent with the findings in vitro,the aortic PWV,calcification were all significantly reduced (P ＜ 0.05) in high magnesium intervention group with high serum magnesium level,when compared with vascular calcification group.Immunohistochemistry showed that hypermagnesemia downregulated obviously the expression of Cbfα-1 induced by hyperphosphatemia(P ＜ 0.05).Conclusion Magnesium protects against vascular calcification by inhibiting osteogenic differentiation of VSMCs.

Objective To explore the effect of vitamin K2 on β-glycerophosphate(β-GP)-induced rat vascular smooth muscle cells (VSMCs) calcification and and the mechanism.Methods VSMCs were obtained from rat aortic,and identified by immunocytochemistry,then randomly divided into control group,high phosphorus group,vitamin K2 group (the group was settled three subgroups according to the concentration of vitamin K2 based on the high phosphorus medium,namely 10 μmol/L,25 μmol/L,50 μmol/L) and noggin (bone morphogenetic protein pathway inhibitor) group.Calcification was visualized by Alizarin red staining,calcium load in cells was quantified by o-cresolphthalein complexone method and alkaline phosphatase (ALP) activity was measured after stimulating 14 days,gene expressions of bone morphogenetic protein-2 (BMP-2),SMAD1,SMAD7 and Runx2 mRNA were detected by RT-PCR,Runx2 protein levels was detected by Western blotting after stimulating 3 days.Results Compared with the cells in control group,high phosphorus induced cell calcification,increased ALP activity,up-regulated the expression of BMP-2,SMAD1,Runx2 mRNA (P ＜ 0.05) and down-regulated the expression of SMAD7 (P ＜ 0.01),while compared with high phosphorus group,the calcium deposition,ALP activity and the expression of BMP-2,SMAD1,Runx2 mRNA were remarkably reduced in a dose-dependent manner by treatment with vitamin K2 (P ＜ 0.05) and the expression of SMAD7 was increased (P ＜ 0.01).Compared with high phosphorus group,SMAD1 and Runx2 expression in noggin group were remarkably reduced(P ＜ 0.01).Conclusion Vitamin K2 inhibits β-glycerophosphate-induced VSMCs calcification which correlates with the suppression of the expression of osteoblast markers through the down-regulation of bone morphogenetic protein pathway.

Objective To investigate the needs of nursing-based continuing home care in old patients with chronic diseases in communi-ty. Methods From June to August, 2016, 14 old patients with chronic diseases were purposively sampled, and interviewed with semi-struc-ture. The data were collected and refined with phenomenological analysis. Results The patients were very positive in nursing-based continu-ing home care. The main requirements included the knowledge about chronic diseases, psychological comforts, rehabilitation nursing, daily security help and medical insurance support. Conclusion It is necessary to support the continuing home care for old patients with chronic diseases, and strengthen the profesional nursing team building in community.

Objective:To analyze the factors that affect patient prognosis after radical nephrectomy.Meth-ods:A total of 389 cases of renal cell carcinoma treated with radical nephrectomy between January 1 993 and December 2006 were reviewed.All the data were encoded.inserted into an Excel database and then ana-lyzed by SPSS 1 3.0 software.The cumulative survival rates were calculated by life-table method.We as-sessed the impact of multiple covariates on survival time with the Cox Regression model.Results:The patho-logical results showed that 307 cases were clear call carcinoma,51 cases were papillary renal cell carcinoma,21 cases were chromophobic renal cell carcinoma,2 cases were collecting duct carcinoma.and 8 cases were unclassified.One hundred and ninety-eight cases were of T1N0M0, 113 cases were of T2N0M0, 3 cases were of T1N1M0,10 cases were of T2N1M0, 51 cases were of T3N0M0, and 14 cases were of T3N1M0, Two hundred and sixty-eight cases were followed up.The 1-year survival rate was 96.5%,the 3-year survival rate was 90.7%.the 5-year survival rate was 75.7%.and the 10-year survival rate was 65.8%.Multivariable analysis revealed that significant prognostic factors included TNM stage,Robson stage.vena cava and supplementary treat-ment(X2=22.50.P=0.001).The most important prognostic factor was pathological stage(TNM and Robson).The regression coefficients were 0.533 and 0.674,and the relative risk was 1.941 and 2.01 1(P=0.004 and p=0.002).Conclusion:Radical nephrectomy is safe and effective.TNM stage.Robson stage and vena cava are prognostic factors.Supplementary treatment is a protective factor.

Objective To understand the risk factors of neurogenic pulmonary edema in the patients with severe hand foot and mouth disease(HFMD). Methods According to neurogenic pulmonary edema or not ,79 patients with severe HFMD were divided into two groups. The difference was analyzed on the clinical symptoms, signs,the outcomes of laboratory and electroencephalogram (EEG) examination between the two groups. Then the risk factors of neurogenic pulmonary edema was analyzed by logistic regression analysis.Results There were significant differences of the EV71 infection rate,high body temperature,myoclonia,limb weakness,the disability of eyeball regulation,tachycardia, hypertension or hypotension, the extension of capillary filling time, leucocytosist, creatine kinase isoenzyme, hyperglycaemia between two groups. However, there were no significant differences of fever, fever time, vomiting, somnolence, convulsion, limb tremor, c-reactive protein and EEG between two groups. Tachycardia, hypertension or hypotension, hyperglycaemia were significant risk factors for neurogenic pulmonary edema by logistic regression analysis. And hyperglycaemia was the most significant prognostic factor(odd ratio 27. 075, P = 0. 000 2). Conclusion Tachycardia, hypertension or hypotension,hyperglycaemia are the significant risk factors for neurogenic pulmonary edema. It is especially important for hyperglycaemia to predict neurogenic pulmonary edema.

Objective To analyze the failure rate and failure factors related to ventilator weaning off in children. Methods Clinical data of 214 patients who received mechanical ventilation in pediatric intensive care unit of Tianjin Children's Hospital from Jan 2005 to Dec 2008 were analyzed retrospectively. Results There were 141 planned extubation events,122 of which were successful and 19 of which were unsuccessful.The failure rate of planned extubation was 13.5%. The failure rate of infants less than 6 months was higher than that of infants more than 6 months, but there was no significant difference ( 15.0% vs 9. 8%, P ＞0.05). The success rate of extubation in pneumonia cases (90. 7% )was higher than that in others (P ＜0. 05 ). The duration of mechanical ventilation had no effect on success rate of extubation ( (7. 64 ± 5.68 ) d vs (6. 95 ± 3. 14) d, P ＞ 0. 05 ). The duration of corticosteroid treatment after extubation in the successful group was less than that in the failure group ( ( 12. 35 ±9. 69) h vs ( 18.63 ± 12. 17) h,P ＜0. 05). According to the result of multiple linear regression analysis ( R2 = 0. 093), airway obstruction was the high risk factor of the extubation failure( F = 14. 256, P ＜ 0. 001 ). Conclusion Currently,weaning from mechanical ventilation in PICU depends on the combination of pediatricians' experience and objective indicators. The key point for improving the success rate of exubation is that we should explore reasonable and feasible extubation protocol and discover and exclude the related factors of exubation failure as earlier as possible.