Objective:To analyze diagnostic value of color Doppler ultrasound (B ultrasound) screening obstetric fetal abnormal condition. Methods:Using retrospective analysis, 1148 cases of pregnant women carried out prenatal B ultrasound examination were selected in our hospital from January, 2013 to June, 2013. B ultrasound examination data are complete, in order to postpartum, after induced labor or autopsy results as the standard, B ultrasound screening for fetal anomaly judgment before producing the accuracy, sensitivity and specificity. Results:Twelve cases of pregnant women were carried out abnormal fetal ultrasound examination, the detection rate was 1.05%(12/1148);after the induction of labor after multiparous, or autopsy results found that fetal abnormality were 13 cases, accounting for 1.13%;the sensitivity of ultrasound for fetal anomaly examination was 92.3%(12/13), the specificity was 100%(1135/1135), the accuracy was 99.9%(1147/1148), It had significant difference (x2=20.22, P<0.05). Conclusion:Prenatal ultrasonic examination system with safe, noninvasive, simple, good repeatability and high reliability,has an important value in the diagnosis of fetal abnormalities, and which has important clinical value to reduce the birth defect.

Objective To determine the influence of general anesthesia on postoperative cognitive function in patients undergoing noncardiac surgery. Methods Forty ASA Ⅰ -Ⅱ patients aged 50-70 years undergoing elective noncardiac surgery under general anesthesia ( n = 20) or general anesthesia combined with epidural block (n =20) were studied.Patients with psychiatrical or neurological disorders or taking hyponotics regularly were excluded.General anesthesia was induced with propofol 1.5-2.5mg/kg and fentanyl 2?g/kg.Tracheal or bronchial intubation was facilitated with vecuronium 0.6mg/kg.The patients were then mechanically ventilated and PETCO2 was maintained at 30-40mm Hg. Anesthesia was maintained with 1.0%-2.0% isoflurane and intermittent iv boluses of vecuronium. Epidural catheter was inserted at T8.9 and a mixture of 0.33% poutocaine and 2%lidocaine was infused through catheter at a rate of 4-6ml/h by using Graseby 3500 infusion pump.Radial artery was cannulated for intra-arterial pressure monitoring. ECG, PETCO2 and end-tidal-isoflurane concentration were monitored during operation. Whenever BP was

ObjectiveTo study the change of autophagy of human pancreatic cancer cell MiaPaCa-2 before and after Ad5-KAI1 tranfection,and to investigate the possible mechanism.MethodsThe MiaPaCa-2 cells without KAI1 expression were infected with Ad5-KAI1 with KAI1 target gene,and Ad5-null was used as negative control,and parental cell was used as blank control.The formation of autophagosomes was observed by electromicroscopy.The green fluorescent protein-labeled light chain 3 (LC3) associations with autophagosome membranes was detected by confocal microscopy.PD98059,LY294002 were applied to pre-treat the cells.The expression levels of beclin 1,AKT,ERK,the phosphorylation of AKT and ERK protein and the ratio of LC3-Ⅱ to LC3- Ⅰ were detected by Western blotting.ResultsAfter 100 MOI Ad5-KAI1 infections for 24 h,the rate of cell expressing KAI1 protein reached (84.97 ±8.56)％,number of LC3 increased from 4 to 20; and swelling,degeneration of mitochondria was observed,and bilayer-like structure in cytoplasm was found.The expression of beclinl increased (1.4 ±0.3 ) folds,and the expression of LC3-Ⅱ/LC3- Ⅰ increased (8.00 ±2.78) folds.PI3K blockade LY294002 pretreatment significantly suppressed the phosphorylation of AKT of MiaPaCa-2 (2.756 vs 1.516),but it did not inhibit the increase of ratio of LC3-Ⅱ to LC3- Ⅰ(0.770 vs 1.403).ERK blockade PD98059 pretreatment not only significantly suppressed the phosphorylation of ERK of MiaPaCa-2 ( 1.637 vs 0.403 ),but also inhibit the up-regulation of beclin 1 protein expression ( 2.377 vs 1.150) and increase of ratio of LC3- Ⅱ to LC3- Ⅰ (2.225 vs 0.680).ConclusionsKAI1 can significantly induce autophagy of human pancreatic cell line MiaPaCa-2 through phosphorylation of ERK rather than AKT.

Objective To explore the pathway of KAI1 induced autophagy regulating apoptosis in human pancreatic cancer cell line MiaPaCa-2.Methods There were three groups in the experiment,which were extracellular regulated protein kinases (ERK) phosphorylation inhibitor PD98059 pretreated group,Caspase-3 activation inhibitor VAD-FMK pretreated group and no PD98059 or VAD-FMK pretreated groups.And each group was divided into three sub groups with different treatment,which were adenovirus AD5-null vector infected control group,the human KAI1 gene recombinant adenovirus vector AD5 KAI1 infected group and autophagy inhibitor 3-MA pretreated and AD5-KAI1 infected group.The cell apoptosis was observed by AnnexinV-FITC/PI double staining.Caspase-3 activation level was evaluated by flow cytometry.ERK phosphorylation and poly(ADPribose) polymerase (PARP) cleavage were determined by Western blot.Results After the cancer cells infected with AD5 KAI1,KAI1 protein was expressed and GFP-LC3 green particles increased.Caspase-3 activation,PARP cleavage,ERK phosphorylation and apoptosis increased obviously.After autophagy inhibitor 3-MA pretreated,the percentage of apoptosis increased from (63.0 ± 7.9)％ to (88.0±4.5) ％ and Caspase-3 activation increased from (34.0±2.8) ％ to (44.2±4.0) ％ and PARP cleavage more.The apoptosis induced by 3-MA could be totally inhibited by Caspase-3 activation inhibitor VAD-FMK pretreated but could not be inhibited by ERK phosphorylation inhibitor PD98059.Conclusion KAI1- induced autophagy inhibits apoptosis through the downregulation of Caspase-3activation and PARP cleavage instead of ERK phosphorylation.

Objective To analyze the distribution and content characteristics of highly cited pa pers in Chinese nursing journals,in order to give a reference for nursing researchers to design their studies and to improve more high quality nursing papers.Methods Nursing papers were searched from database of China Academic Journal Network.Papers cited 100 times or more were collected for statistical analysis.Results There were 266 nursing papers cited 100 times or more.They were found in 9 nursing journals,of which Chinese Nursing Journal was 69.1％.The paper most highly cited was 1 298 times.The contents of highly cited papers covered basic nursing (infusion nursing and air way nursing),health education,nursing management (safety management,nursing laws,and nursing profession protection),humanistic care,psychological nursing care,and pressure of nurses.Conclusions In order to produce high quality of nursing paper,nursing researchers should improve their academic sensitivity,pay more attention to the scientific fronts,emphasize basic nursing research and study persistent.

Purpose To analyze retrospectively the clinicopahological characteristics and immuophenotype in 120 cases of pulmonary selerosing hemangioma ( PSH) . Methods Data of 120 cases of PSH were collected and reviewed, including gross features and frozen diagnosis, histopathological features, morphology in HE and immunohistochemical characteristics of tumor cells. Results PSH pres-ents a well-circumscribed mass with a sense of expansion after cutting, which showed a solid, grey to tan-yellow surface with foci of haemorrhage. Two kinds of tumor cells and four typical patterns with mixed forms, are often shown under light microscope (92/120, 76. 67%). Focal accumulation of histocytes and scattered mast cells were noted in some cases (83/120, 69. 17%). Both surface cells and round cells were TTF-1 and EMA positive. Surface cells expressed SP-A, CK and NapsinA. Round cells expressed vimentin. Conclusion Gross features and typical“two cell types, four patterns” contribute to PSH diagnosis. Meanwhile, foal accumulation of foam histocytes and scattered mast cells show a clue to PSH diagnosis and differential diagnosis.

Medical Image has been increasingly applied in clinical diagnosis and treatment.It is very important to make use of large numbers of images in medical image management system in order to help clinician to analyze and diagnose.The traditional information retrieval techniques are not fit for retrieving large scale medical image databases.It is a very promising idea to introduce Content-based Image Retrieval(CBIR) technique into indexing medical image databases.The structure of the Content-based Medical Image Retrieval System(CBMIR) is introduced,and the key problems are mainly investigated,which included image segmentation,feature extraction,similarity searching and feedback mechanism.At last,the status and development of CBMIR are discussed.

ObjectiveTo observe cluster needling of scalp acupuncture combined with rehabilitation(Tang's Approach) as an early intervention for the children with high-risk of cerebral palsy.Methods62 infants with high-risk of cerebral palsy in hospital from Jan. 2006 to Dec. 2008 were divided into the acupuncture with rehabilitation group and rehabilitation group. The scores of Mental Develop Mental Index (MDI) and Psycho-Motor Developmental Index (PDI) were assessed before and 3 months after the treatment. ResultsThe scores of MDI and PDI were better in acupuncture with rehabilitation group than in the rehabilitation group 3 months after the treatment (P＜0.01). There were significant differences in reducing dysfunction in the acupuncture with rehabilitation group compared with the rehabilitation group (P＜0.01). The follow-up result showed that there were certain advantages in reducing incidence of cerebral palsy by the acupuncture combined with rehabilitation. ConclusionAs an early intervention, Tang's Approach can improve motor function in children with high-risk cerebral palsy.

OBJECTIVEThe aim of this study is to analyze the three-dimensional crystal structure of SMU.2055 protein, a putative acetyltransferase from the major caries pathogen Streptococcus mutans (S. mutans). The design and selection of the structure-based small molecule inhibitors are also studied.

METHODSThe three-dimensional crystal structure of SMU.2055 protein was obtained by structural genomics research methods of gene cloning and expression, protein purification with Ni²⁺-chelating affinity chromatography, crystal screening, and X-ray diffraction data collection. An inhibitor virtual model matching with its target protein structure was set up using computer-aided drug design methods, virtual screening and fine docking, and Libdock and Autodock procedures.

RESULTSThe crystal of SMU.2055 protein was obtained, and its three-dimensional crystal structure was analyzed. This crystal was diffracted to a resolution of 0.23 nm. It belongs to orthorhombic space group C222(1), with unit cell parameters of a = 9.20 nm, b = 9.46 nm, and c = 19.39 nm. The asymmetric unit contained four molecules, with a solvent content of 56.7%. Moreover, five small molecule compounds, whose structure matched with that of the target protein in high degree, were designed and selected.

CONCLUSIONProtein crystallography research of S. mutans SMU.2055 helps to understand the structures and functions of proteins from S. mutans at the atomic level. These five compounds may be considered as effective inhibitors to SMU.2055. The virtual model of small molecule inhibitors we built will lay a foundation to the anticaries research based on the crystal structure of proteins.

Bacterial Proteins ; chemistry ; Cloning, Molecular ; Crystallization ; Crystallography, X-Ray ; Dental Caries ; Humans ; Streptococcus mutans ; chemistry ; X-Ray Diffraction

Objectives: To evaluate the efficacy of phacoemulsification and foldable IOL implantation with limbal tunnel incision.　Methods: A 3.2mm limbal tunnel incision was made on 72 eyes of 66 patients with senile, complicated and traumatic cataract. Phacoemulsification and foldable IOL implantation was performed. Visual acuity, corneal curvature and corneal topography were measured after the surgery.　 Results: One day, one week and one month after the surgery, visual acuity exceeded 0.5 in 69.4%, 80.6%,86.1% of the patients respectively. One week after the surgery, the mean astigmatism was (1.85±0.89)D(P<0.01), 0.30 D more than that before the surgery. Corneal topography showed that the incision was steep or flat. One month after the surgery, the mean astigmatism was (1.48±1.02)D，P>0.05,corneal topography had recovered.　 Conclusions: Phacoemulsification and foldable IOL implantation with limbal tunnel incision have comparatively simple, with less postoperative inflammation and faster recovery of visual acuity.