Objective:To observe the effect of calcitonin gene-related peptide (CGRP) on the expression of osteoprotegerin (OPG) and receptor activator of nuclear factor-kappaB ligand (RANKL) in osteoblast cells through an in vitro breast cancer cell and osteoblast cell co-culture system. Methods:The metastatic breast cancer MDA-MB-231 or MDA-MB-435 cells were co-cultured with osteoblast MG63 cells to establish an in vitro microenvironment of bone metastasis of breast cancer. After treated with CGRP(1?108 mol/L),OPG and RANKL mRNA and protein expressions in osteoblast MG63 cells were examined by RT-PCR and Western blotting. Results:Expression of RANKL in osteoblast MG63 cells was up-regulated at both mRNA and protein levels when osteoblast MG63 cells were co-cultured with breast cancer MDA-MB-231 or MDA-MB-435 cells,while those of OPG in osteoblast MG63 cells were both down-regulated (P

Objective To assess the value of prenatal ultrasonography in diagnosing fetal absent pulmonary valve syndrome(APVS). Methods This was a retrospective study of 8 fetuses with absent pulmonary valve syndrome. Fetal echocardiography and segmental analysis were used to determine the atrial situs,atrioventricular connections and ventriculoarterial relationships. Cardiac chamber dimensions,Doppler studies of the atrioventricular valve and semilunar value were recorded, and cardiothoracic ratio were calculated. Results Levocardia,normal situs and atrioventricular connections were present in all cases. All cases showed typical signs:severe dilatation of the pulmonary trunk and it's branches, and concurrent occurrence of pulmonary valve stenosis and regurgitation. In 6/8 there was an associated ventricular septal defect,overriding aorta and absent arterial duct(Fallot-like APVS),while in 2/8 there was an assoiciated intact ventricular septal and patent arterial duct. Extracardiac malformations were detected in 5 cases.Conclusions APVS can be accurately diagnosed by prenatal ultrasonography but we should pay more attention to the ventricular septal and arterial duct,due to the existence of two variants.

Objective To analyze the clinical characteristics of Mycoplasma pneumoniae pneumonia in children under 2 years old. Methods The clinical features and treatment outcomes were analyzed in 57 children under 2 years old and compared with 153 children more than 2 years old. Results Compared with children more than 2 years old, in children under 2 years old, the number of cases with fever was fewer, the fever peak was lower and the lasting time was shorter. However, in children under 2 years old, the severe pulmonary signs were more common, the incidence of wheeze was higher, meanwhile, the count of white blood cells (WBCs) was signiifcantly increased, more small pieces of lfuff shadow was showed on chest X-ray, and the pulmo-nary complications were fewer, less corticosteroid was needed for treatment. After one-week therapy, the chest X-ray shadows were disappeared in most of children. Complications out of lungs, such as rash, liver function damage and cardiac damage can be found in both groups and no signiifcant difference (P>0.05). Conclusions Mycoplasma pneumoniae pneumonia in children under 2 years old had the characteristics of mild symptoms, severe pulmonary signs, few pulmonary complications, light systemic inlfammations and mild radiological changes.

In this study, we applied in vivo electroporation(EP) for HBV DNA vaccine administration to improve the cell transfection rate of plasmid DNA and to enhance the immune response. In BALB/c mice (8 mice in each group), the luciferase activity (16170?12533RLU) was 4 digits higher than that of the non EP control (8 02?8 00RLU), the difference between them was very significant ( P

Doctors must carry out informed consent in medical treatment.However,to ensure patients' rights and interests mostly,this obligation needs exempted in some special cases.This article studies the insufficiency in the existing regulation on doctors' obligations exemption.It also lists some constructive suggestions based on the existing theory to solve this problem.

OBJECTIVE:To establish a method for the dissolution determination of Tamibarotene tablet. METHODS:HPLC was performed on the column of Diamonsil C18 with mobile phase of methanol-water-acetic acid(85∶15∶1,V/V/V)at a flow rate of 1.0 ml/min,detection wavelength was 235 nm,column temperature was 25 ℃,and injection volume was 20 μl. The paddle method was used to determine the dissolution,using pH6.8 phosphate buffer dissolution as medium,medium volume was 900 ml,the rotat-ing speed was 50 r/min,taking samples after 60 min. RESULTS:The linear range of tamibarotene was 0.801-2.804 μg/ml (r=0.999 6);RSDs of precision,stability and reproducibility tests were lower than 3%;recovery was 99.58%-100.90%(RSD=0.25%,n=9);the accumulative dissolution rate of 3 batches of samples was 98.25%,96.54%,92.38%(n=6). CONCLUSIONS:The method simple,accurate with high sensitivity and specificity,and suitable for the dissolution determination of Tamibarotene tablet.

Objective To determine whether therapy of Salvia miltiorrhiza,Ligustrazine and magnesium sulfate has effect on concentrations of SOD, MDA,NO,ET,TXA 2, PGI 2 in blood and outcomes of women with pregnancy-induced hypertension(PIH). Methods Two hundred and twenty-five women with moderate PIH were studied while treated with Salvia miltiorrhiza, Ligustrazine and magnesium sulfate in group A, B, and C(n=75 respectively). Concentrations of SOD, MDA, NO, ET, TXA 2, PGI 2 in blood, blood pressure, postpartum hemorrhage, fetal distress, and neonatal asphyxia were monitored. Results In maternal blood the concentrations of SOD in the three groups before and after treatment were 178.3?4.1 vs 219.5?4.1、190.4?2.4 vs 208.4? 2.4、176.1?3.4 vs 221.1?2.2、MDA 11.4?1.3 vs 7.2?1.2、13.0?2.7 vs 8.6?2.0、10.3?1.5 vs 7.1?1.1、NO 747?202 vs 940?232、798?159 vs 907?142、776?212 vs 862?189、ET 78.3?4.5 vs 62.3?3.8、78.3?4.3 vs 58.3?4.4、76.9?3.9 vs 60.2?2.9、TXA 2 560?28 vs 486?27、537?27 vs 502?20、558?25 vs 472?21、PGI 2 162?13 vs 217?14、167?17 vs 227?16、169?13 vs 213?11 respectively,there were significant differences between betore and after treatment (P0.05). Conclusions It is showed that Salvia miltiorrhiza ,Ligustrazine and magnesium sulfate can well balance circulating levels of SOD, MDA, NO, ET, TXA 2, and PGI 2 in women with PIH. Magnesium sulfate may interfere the results of the monitoring on the fetal heart rate.

25 % . Homologous blood was transfused when Hct was

Objective To investigate the status of patient safety culture cognition and safety nursing behavior among nurses and examine the influence of patient safety culture cognition on safety nursing behavior of nurses using structural equation model. Methods A total of 350 clinical nurses were recruited in a hospital in Dalian with multi-stage sampling method. Patient Safety Culture Assessing Scale, Safety Behavior Scale were delivered to the investigation object. Results The mean score of the patients safety culture was 4.09±0.47, which was above average;the total score of nurses′safety nursing behavior was 4.74 ± 0.31, which was at high level; the causality model of patient safety culture cognition and the safety nursing behavior was accepted (path coefficient=0.35,P<0.01). Conclusions Nurses′ patient safety culture cognition has a significant impact on safety nursing behavior. Hospital should cultivate the awareness of the patient safety culture, so as to promote the safety nursing behavior.

This study was aimed to evaluate the applicability of common Chinese word segmentation software used in the literature study of traditional Chinese medicine (TCM) text,in order to put forward ideas on developing specialized TCM text word segmentation software.By means of installing and operating Chinese word segmentation software,the text segmentation experiment was conducted on TCM text samples.Aspects,such Chinese word segmentation accuracy,speed,maneuverability,reliability,extendibility,portability and other characteristics,were compared among different Chinese word segmentation software.The results showed that there were differences on the accuracy,speed,maneuverability,reliability,extendibility,portability among different Chinese word segmentation software.It was difficult to achieve best performance on different aspects by single software.Through the comparison of different Chinese word segmentation software,the Pan-Gu Segment software showed the best performance on accuracy,with good maneuverability,and high word segmentation efficiency,which was the most suitable for word segmentation in TCM text.It was concluded that developing specialized TCM text segmentation software may be the best solution to meet the requirement of text segmentation in TCM literature study.Basic studies should be strengthened from aspects,such as the construction of standard TCM copus,the completion of TCM dictionary base,the introduction,optimization and innovation of word segmentation algorithm,as well as the development of word segmentation software for TCM text.