Objective To study the effect of CO2 pneumoperitoneum on the anti-apoptotic capability of human cervical carcinoma cell line(CaSki).Methods The imitated CO2 pneumoperitoneum was established in vitro.After CaSki cells were exposed to CO2 pneumoperitoneum at 0,7 or 14 mmHg for 1,2,3,4 h,the expressions of Survivin mRNA and Bcl-2 protein were examined by RT-PCR and Western blot respectively.The untreated CaSki cells served as control.Results Under 7 or 14 mmHg,the expressions of Survivn and Bcl-2 had an increasing tendency with the exposure time prolongation.Within the same exposure time,the expressions of Survivin and Bcl-2 under 7 mmHg were significantly higher than those under 0 or 14 mmHg or in control group.Conclusion Under certain pressure and within certain exposure time,CO2 pneumoperitoneum could improve anti-apoptotic capability of human cervical carcinoma cells,which may be one reason for the promoting effect of carbon dioxide pneumoperitoneum on malignant cells growth.

Objective To explore the value of direct and indirect ultrasonographic signs in diagnosis of small breast cancer. Methods The sonographic features of 103 small breast lesions (47 malignant, 56 benign) were retrospectively analyzed and divided into direct and indirect signs according to the pathology.The results of ultrasonography were compared with pathology. Agreement was measured with K statistics between ultrasonographie signs and pathology. Results Compared with the malignant and benign small breast noplasms, there was statistical significance of the direact signs of micro calcifications, grade Ⅱ- Ⅲ flow,resistance index (RI)≥0.7 and the indireact signs of changes of superficial fascia (P<0.01).Agreement was moderate for micro calcifications, grade Ⅱ-Ⅲ flow, RI≥0.7, changes of superficial fascia (0.7> K≥0.4) ,and substantial for the combination of direct and indirect signs(K=0.726). Conclusions Combination of direct and indirect ultrasonographie signs was significant in diagnosis of small breast cancer.

Objective To study the protective effect of estrogen against neuronal injury and the possible roles of alteration in the expression of bcl－ 2 following cerebral ischemia. Methods rats were ovariectomized.Brain ischemia was induced by left middle cerebral artery occlusion (MCAO) for 2 hours, and 22 hours of reperfusion,all animals were killed. The cerebral cortex sector histology was examined under light microscope (both qualitatively and quantitatively). The expression of bcl－ 2 was analyzed with immunohistochemical method. Results In estrogen－ treated groups, the density of normal neruons were significantly higher(P<0.05);Estrogen increased the expression of bcl-2(P<0.05).Conclusions The neuroprotective of estrogen was associated with up-regulation of bcl-2 in cerebral ischemia.

On the basis of educational psychology fundamentals and characteristics, this study constructed the experiential teaching of music therapy. The preparations made before class include the construction of experiential teaching system, improvement of multimedia resources, and the establish-ment of music therapeutic room. Music therapy activities were taken as the main body and problem-based learning as the leading factor, clinical observation as the basis, and social practice as the com-plement, etc. This study provides basis and reference for the theoretical teaching and clinical practice of music therapy in medical colleges and universities.

Objective To analyze CT and MR imaging features of dysembryoplastic neuroepithelial tumor(DNT),so that to improve its diagnostic accuracy.Methods CT and MRI fidnings of DNT in 10 cases proved surgically and pathologically were retrospectively reviewed.Results All lesions were located in the super-tentorial gray matter regions or involved the cererbral certex mainly.The lesions were round,lobular,triangular or irregular pseudocystic masses with definite borders mostly.The lesions were hypointense on T_1WI and hyperintense on T_2WI.On fluid attenuated inversion recovery weighted images,the hyperintense "ring sign" and septa of the lesions were seen.On diffuse-weighted images(DWI),the lesions were hypointense or slight hypointense.On MR spectroscopy,NAA of the lesions slightly decreased.There were no peripheral edema and mass effect with well-demarcated.7 lesions had no enhancement and 3 lesions had slight unhomogeneous enhancement after administration of contrast medium.The lesions in 2 cases on plain CT showed low attenuation and one had calcification inside the lesion.Conclusion DNTs are of typical neuroradiologic features,that may be helpful for the diagnosis of which preoperatively.

Objective To observe the effects of hyperbaric oxygen therapy(HBOT) on Glasgow coma scale(GCS) in patients with traumatic brain injury(TBI) and the influences of course and initiating time of HBOT on the therapeutic effects.Methods 105 cases of TBI patients,which performed HBOT more than 30 days in HBOT Center of Southwest Hospital,were analyzed retrospectively.The GCS improvements were compared with 29 cases of TBI patients without HBOT during the same period.They were also compared between patients with different severity,initiating times and courses of HBOT.Results The GCS improvement of patients with HBOT was 3.97?2.65,especially in severe TBI patients(5.22?2.49),Both were higher than that without HBOT(2.38?2.16)(P

Objective Study on the intracellular calcium and growth suppression of human breast cancer cells exposed by high intensity ultrasound (HIU). Methods Exposed human breast cancer cells MDA-MB-231 and MCF-7 in vitro with HIU (50 W/cm2). Examined the intracellular calcium from exposed cells with Fura-2 fluorescence probe. The cell viabilities were measured by MTT assay. The rate of cell apoptosis and distribution of cell cycle were detected on flow cytometry. Results The lever of intracellular calcium went up in pace with exposed time of HIU, MCF-7 cells were (572±20.1), (670±18.9), (815± 16.3) nmol/L (F = 663.65, P＜0.001), MDA-MB-231 cell was (582±16.3), (687±19.7), (843± 14.8) nmol/L (F = 863.06, P＜0.001), and the distribution of cell cycle waved to G0-G1, the ratios of G0-G1 in MCF-7 and MDA-MB-231 were (60.5±5.5)%, (66.3±7.0)%, (74.5±8.2)% (F=8.17, P = 0.002) and (58.5± 6.3) %, (66.1±6.3)%, (71.2±7.9) % (F=7.51, F= 0.003). Apoptotic rate upgraded gradually, the apoptotic rates of MCF-7 and MDA-MB-231 were (7.3±1.7)%, (13.2±3.5) %, (19.3±3.7)% (F= 18.73, P＜0.001) and (6.3±1.8)%, (11.4±2.31)%, (16.4±3.3)% (F = 19.26, P＜0.001). Under MTT assay, the rate of cell growth suppression increased significantly, the rates of cell growth suppression in MCF-7 and MDA-MB-231 were (9.2±2.2) %, (24.3±3.9)%, (48.6±5.5)%(F=117.16, P ＜0.001) and (9.0±1.7)%, (22.3±3.5) %, (416± 6.4)% (F =71.25, P＜0.001). Conclusion HIU enhanced the intracellular calcium of human breast cancer cells within given time and promoted the distribution of cell cycle to G0-G1. The rate of cell apoptosis and the cell's death rate increased evidently.

Objective To investigate the effect of continuous care provided by midwife group personnel to pregnant women.Methods 100 cases of pregnant women were screened out and divided into the study group and the control group with 50 patients in each group randomly.The study group received continuous care provided by midwife group personnel,the control group received traditional nursing.Effect of different nursing measures on mothers and neonates were compared.Results Antenatal cognition and rate of natural delivery of the study group were higher than the control group.The rate of neonatal asphyxia and postpartum depression occurred in the study group were lower than the control group,Maternal and family sarisfaction and rates of breasffeeding of the study group were higher than the control group.Conclusions Continuoas care provided by midwife group personnel can increase antenatal cognition and rate of natural delivery,maternal and family satisfaction.breast feeding rates and the overall quality of nursing staff,reduce rate of neonatal asphyxia with few postpartum depression,then improve the quality of perinatal care.

Objective:To investigate the impact of Bayesian penalized likelihood (BPL) PET reconstruction method on the uptake of 18F-fluorodeoxyglucose (FDG) and signal to noise ratio (SNR) of lungs, liver, aorta and bones. Methods:From March 2019 to June 2019, the 18F-FDG PET/CT images of 60 patients with clinical diagnosed tumors (29 males, 31 females, age: 24-89 (60.4±15.2) years) in Yuhuangding Hospital were retrospectively analyzed. PET images were reconstructed with ordered subset expectation maximization (OSEM), time of flight (TOF)+ point spread function (PSF) and BPL (β=350) algorithms. Volumes of interest (VOIs) were delineated on the right upper lung lobe, the right liver, aortic root and lumbar vertebra. The mean standardized uptake value (SUV mean), maximum standardized uptake value (SUV max), peak of lean body standardized uptake value (SUL peak), standard deviation of standardized uptake value (SUV SD) and the SNR were measured. The percentage of SNR change (%ΔSNR) between the BPL method and non-BPL methods were calculated. The correlations between body mass index (BMI) and %ΔSNR were analyzed by Pearson correlation analysis. One-way analysis of variance and the least significant difference (LSD) t test were used to analyze the data. Results:There were no significant differences of SUV mean and SUL peak in lung, aorta, liver and lumbar vertebra among 3 methods ( F values: 0.04-1.95, all P>0.05). The SUV max in lung, aorta, liver and lumbar vertebra of BPL reconstruction (1.14±0.82, 2.13±0.37, 2.95±0.50 and 2.76±0.87) was significantly lower than those of TOF+ PSF (1.56±0.61, 2.99±0.75, 4.32±0.94 and 4.05±1.48) and OSEM (1.51±0.67, 3.00±0.70, 4.45±1.12 and 3.81±1.06) reconstructions ( F values: 20.59-52.24, all P<0.001) and SUV SD (0.13±0.07, 0.20±0.05, 0.26±0.06, 0.38±0.17) was also significantly lower than those of TOF+ PSF (0.24±0.11, 0.43±0.11, 0.58±0.15, 0.67±0.21) and OSEM (0.21±0.09, 0.42±0.10, 0.58±0.14, 0.63±0.20) reconstructions ( F values: 24.46-124.95, all P<0.001), while the SNR (4.67±1.34, 7.74±2.22, 8.17±1.77, 4.45±1.22) was significantly higher than those of TOF+ PSF (2.54±0.72, 3.55±0.82, 3.77±0.91, 2.49±0.69) and OSEM (2.65±0.64, 3.67±0.80, 3.75±0.87, 2.60±0.67) reconstructions ( F values: 83.04-247.73, all P<0.001). However, there were no significant differences between OSEM and TOF+ PSF reconstructed images in SUL peak, SUV mean, SUV SD and SNR (all P>0.05). In BPL group, SNR increased with the increase of BMI, and there were statistically differences of aortic SNR (7.07±2.21 vs 9.67±2.26) and liver SNR (7.75±1.85 vs 9.32±0.70) between BMI<25 kg/m 2 and BMI≥30 kg/m 2 ( F values: 3.46 and 4.19, both P<0.05). Positive correlations were found between %ΔSNR of lung, aorta, liver and lumbar vertebra in OSEM and TOF+ PSF and BMI ( r value: 0.042-0.354, all P<0.05). Conclusion:In background tissues, BPL algorithm has no significant impact on absolute quantification compared with OSEM and TOF + PSF reconstruction methods but it can significantly improve SNR, especially for the patients with large body weight.

Objective To prepare an attenuated Listeria vaccine Lmdd-LMP2A expressing the Ep-stein-Barr virus latent membrane protein 2A ( EBV-LMP2A) and evaluate its specific anti-tumor effects on nasopharyngeal carcinoma.Methods The gene fragment encoding EBV-LMP2A was amplified by PCR analysis and then subcloned into the shuttle vector p1565.PCR restriction enzyme digestion and DNA se-quencing were performed to identify the recombinant shuttle vector p1565-LMP2A.The p1565-LMP2A vector was then transformed into competent strains of the attenuated Listeria monocytogenes ( Lmdd) .The recombi-nant attenuated Listeria vaccine strain Lmdd-LMP2A was verified by Western blot assay.The histological sections of spleen and liver tissues were stained by Haematoxylin and eosin ( H&E) for analysis of inflamma-tion.A tumor-bearing HLA-A2 transgenic mouse model was established by subcutaneous injection of CNE-1/HLA-A2/LMP2A nasopharyngeal carcinoma cell line.The prepared Lmdd-LMP2A vaccine was inoculated into the mice via tail intravenous injection for the evaluation of specific CTL induction and the in vivo anti-tumor effects.Results The shuttle vector p1565-LMP2A and the recombinant attenuated Listeria vaccine strain Lmdd-LMP2A with stable expression of LMP2A protein were successfully constructed.The immunized mice showed mild inflammations with no structural damage and necrosis as indicated by H&E staining.The growth of tumors in tumor-bearing HLA-A2 transgenic mice was significantly inhibited by the immunization of Lmdd-LMP2A vaccine as compared with mice without inoculation.The survival time of mice was prolonged with the immunization of Lmdd-LMP2A vaccine.Conclusion The prepared attenuated Listeria vaccine Lm-dd-LMP2A showed specific anti-tumor effects with the safety advantage, suggesting the possibility of using it for anti-tumor therapy in clinic.