AIM: To compare and analyze the stereopsis of intermittent exotropia children under the different backgrounds of dynamic stimuli and static stimuli.
METHODS: We collected 56 children ( male 26, female 30 with intermittent exotropia at the age from 5y to 12y and examined their stereopsis under the different backgrounds of dynamic stimuli and static stimuli using a multidimensional sense perception training software. The differences between the dynamic stereopsis and static stereopsis were compared.
RESULTS: Totally 17 cases ( 30%) had both dynamicstereopsis and static stereopsis, 39 cases ( 70%) had either dynamic or static stereopsis deficit, only 10 cases ( 26%) had dynamic stereopsis, 25 cases ( 64%) static stereopsis left and 4 cases ( 10%) were without any form of stereopsis. The positive rate of dynamic stereopsis was better than the positive rate of static stereopsis, with statistical significance (P<0. 05).
CONCLUSION: Dynamicstereopsis is better than the static stereopsis to intermittent exotropia children.

OBJECTIVEThis study aims to examine the prevalence and diameter of the bony canal structure of the posterior superior alveolar artery (PSAA), residual alveolar bone height, and distance of its inferior border from the alveolar crest using cone-beam computed tomography (CBCT).

METHODSCBCT images of maxilla in 116 patients were randomly selected from patients who underwent maxillary sinus augmentation procedure and/or posterior teeth implant therapy from April 2011 to September 2012. The lower border of the bony canal to the alveolar crest, diameter of the bony canal, and residual alveolar bone height below the sinus floor to the ridge crest were measured from CBCT scans. Data were presented using descriptive statistics.

RESULTSThe prevalence of the bony canal was 75.14% (133/177). The mean diameter of the bony canal was (0.96 ± 0.29) mm. The residual alveolar bone height was (7.14 ± 3.64) mm. The distance of the bony canal's inferior border from the alveolar crest was (17.92 ± 5.68) mm. No statistically significant differences between the right and left sides were observed (F = 0.295, P > 0.05). The mean diameter of the bony canal was significantly smaller in females than that in males (F = 0.187, P < 0.05). The maxillary alveolar dimension was significantly correlated with the residual alveolar bone height.

CONCLUSIONThe results from this study suggest that CBCT is a valuable tool in evaluating the presence of the bony canal of the PSAAs efore maxillary sinus surgery.

Alveolar Process ; Arteries ; Cone-Beam Computed Tomography ; Humans ; Maxilla ; Maxillary Sinus ; Sinus Floor Augmentation

OBJECTIVETo explore the inhibitory effect of cinnamaldehyde on invasion capacities of human breast cancer cell line MDA-MB-435S and its relation with regulating the expression of miR-27a.

METHODSThe effect of cinnamaldehyde on invasive capacities of MDA-MB-435S was measured by Transwell matrigel invasion assay. The effect of miR-27a expression on invasive capabilities of MDA-MB-435S, the intervention of cinnamaldehyde in the miR-27a expression, and its relation with its effect on invasive capabilities were defected with liposome 2000 transinfection miRNA27a mimics/inhibitors, real time-polymerase chain reaction (Real-time PCR), and Transwell chamber model.

RESULTSCompared with the control group, the number of cells passing through the transwell chamber was more significantly reduced after treated by cinnamaldehyde for 12 h (P < 0.05). The miR-27a expression was 962.07 times and 40% of that of the control group after transinfected by miR-27a mimics and miR-27a inhibitors. After transinfected by miR-27a inhibitors, the number of cells passing through the transwell chamber was more significantly reduced (P < 0.05). The miR-27a expression of MDA-MB-435S was down-regulated by 12-h treatment of cinnamaldehyde (2(-deltaCt) = 0.56, 0.18, 0.18, respectively). The number of miR-27a mimics transinfection pretreated MDA-MB-435S cells passing through the transwell chamber increased more obviously than the number of un-pretreated MDA-MB-435S cells in the control group (P < 0.05).

CONCLUSIONSCinnamaldehyde could inhibit invasive capabilities of human breast cancer cell line MDA-MB-435S. The over-expression of miR-27a played an important role in the invasive capability of MDA-MB-435S. The inhibition of cinnamaldehyde on invasive capabilities of MDA-MB-435S cells was correlated with down-regulating the expression of miR-27a.

Acrolein ; analogs & derivatives ; pharmacology ; Breast Neoplasms ; metabolism ; pathology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Female ; Humans ; MicroRNAs ; genetics

This study reported the analysis of plasma phospholipid metabolism of the rats and the pathological biomarkers between the type 2 diabetes model control group (MC) and the normal control group (NC). SD rats were randomly divided into 2 groups: NC and MC. To investigate state of plasma metabolite profiling in normal body, type 2 diabetes mellitus (T2DM) model group using UPLC-Q-TOF/MS which was used as analysis tool in this research. The compounds were identified by UPLC-Q-TOF/MS based on MS/MS fragment ions information, element composition in MassLynx 4.1 and the Lipid Maps database. The sign of two groups of samples in specific markers for screening was through a software package in R software (BioMark software). The results show that the pathological markers were mainly phosphatidylcholine (PC) and triglycerides (TG); the 2-acyl PC in the MC group was less more obviously than that in the NC group; high carbon number and high degree of unsaturation of the TG was reduced under the condition of type 2 diabetes. In the state of type 2 diabetes, metabolic changes occurred in rat plasma phospholipids obviously, which had a close relationship with the occurrence and development of T2DM.
Animals ; Biomarkers ; blood ; Chromatography, High Pressure Liquid ; Diabetes Mellitus, Experimental ; blood ; Diabetes Mellitus, Type 2 ; blood ; Metabolome ; Phospholipids ; blood ; Rats ; Rats, Sprague-Dawley ; Tandem Mass Spectrometry

Objective To study the value of flow cytometry in identifying metastatic CK positive and negative nonhematopoietic neoplasms in bone marrow. Methods Twenty-six cell lines representing ten epithelial neoplasms, one lymphoma cell line and one human T cell lymphoblast-like cell line were purchased from American Tissue Culture Collection. From July 2009 to June 2010, five nonhematopoietic neoplasms,fifteen hematopoietic neoplasms and fifteen control patients with complete remession after hematopoietic stem cell transplantation were collected in Beijing Daopei Hospital. Cryopreserved cell lines were thawed and cultured until they entered log phase. After permeabilization, cell lines were analyzed by staining with cytoplasmic CK-FITC antibody using four-color flow cytometer. The percent CK positivity was measured by comparing with negative control. Bone marrow samples were stained with membrane and cytoplasmic antibodies according to our routine methods. Based on lineage markers and blast markers as well as CK expression, the relevant hematopoietic diseases were diagnosed or excluded according to 2008 World Health Organization diagnosis standards. Results All epithelial neoplasm cell lines expressed CK, with average positive percentage 81.1%. All the lymphoid tumor cell lines didn't express CK. Two epithelial neoplasms were CK positive, 100. 0% in thyroid carcinoma and 98. 2% in lung carcinoma, respectively. Hematopoietic tumor and control samples didn't express CK. They expressed relevant hematopoietic markers, such as CD45 as well as lineage markers, or CD138 and cytoplasmic immunoglobulin light chain. Three nonepithelial nonhematopoietic neoplasms didn't express CK. CK positive or negative nonhematopoietic neoplasms didn't express hematopoietic markers such as CD45, HLA-ABC and HLA-DR DP DQ, as well as lineage specific markers. Besides, CK positive might be helpful to suggest epithelial origin. Conclusion Flow cytometry with hematopoietic markers and CK can effectively exclude hematopoietic tumor and identify metastatic CK positive and negative nonhematopoietic neoplasms in bone marrow.

Objective To dynamically investigate the effects of aluminum on the concentration of free intracellular Ca2+([Ca2+]i) and the expression of calcium channels in the hippocampus of rats. Methods Healthy 64 Wistar rats were taken as the experimental objects. And these rats were randomly divided into 16 groups according to their weights, and were instilled with AlCl3 at 0(control),37.3,74.7 and 248.7 mg/kg respectively. The experimental time exposed to AlCl3 was 45,75,120 d, among which the rats were given AlCl3 for 120 d fed normally for 30 d. The hippoeampus were segregated on day 45,75,120 and 150 d and the[Ca2+]i of hippocampus of rats were detected by fluorospectrophotometer. The expression of Ryanodine receptor 2 (RyR2) mRNA and α1C ubunit of L-type calcium ehannels(L-Ca2+α1C) mRNA were detected by RT-PCR analysis. Results [Ca2+]i was increased by AlCl3 in a dose-and time-dependant manner(F=23.136 and 19.089, P<0.01). There was a synergistic effect between the dose and time in [Ca2+]i (F=2.270, P<0.05). In time of 120,150 days, the [Ca2+]i of rats hippocampus in 37.3[(299.3±48.7), (342.7±35.3)nmol/L], 74.7[(391.2±47.9), (408.1±42.8)nmol/L] and 248.7 mg/kg group[(397.9±55.8), (405.2±22.7)nmol/L] significantly increased compared with control group [(195.1±29.9), (209.1±30.6)nmol/L; P<0.01]. The expression of RyR2 mRNA and L-Ca2+α1C mRNA were increased by AlCl3(F=23.301 and 60.812, P<0.01). The experimental time could lower the expression of L-Ca2+ α1C mRNA (F=6.088, P<0.01), but had no influences on the expression of RyR2 mR NA (F=1.361, P>0.05). There was interaction between the dose of AlCl3 and the time in the expression of L-Ca2+α1C mRNA (F=5.876,P< 0.01). On day 75,120 and 150 of the experiment, the expression of L-Ca2+α1C mRNA in rat hippocampus of 74.7 (1.03±0.16,1.18±0.18,0.92±0.11) and 248.7 mg/kg group(1.89±0.26, 1.25±0.10, 1.07±0.14) also increased compared with control group(0.63±0.09,0.78±0.16,0.69±0.11; P<0.05 or <0.01). On day 45,75, 120 and 150 of the experiment, the expression of RyR2 mRNA in 74.7(0.49±0.06,0.51±0.07,0.57±0.11, 0.47±0.11), 248.7(0.47±0.03,0.52±0.09, 0.70±0.10, 0.78±0.09)mg/kg AlCl3 groups was highly increased compared with control group (0.24±0.07, 0.32±0.04, 0.30±0.06, 0.27±0.06; P<0.05 or<0.01). Conclusion Al increases [Ca2+]i by increasing the expression of the RyR2 mRNA and L-Ca2+α1C mRNA, thus exerts an irreversible neuronal toxicity.

Aluminum ; toxicity ; Animals ; Animals, Newborn ; Calcium ; metabolism ; Cerebral Cortex ; drug effects ; metabolism ; Dose-Response Relationship, Drug ; Female ; Male ; Rats ; Rats, Wistar

Diabetes Mellitus ; diagnosis ; therapy ; Humans ; Medicine, Chinese Traditional ; methods

ABSTRACT:Colorectal cancer is a malignant tumor with high incidence,insidious onset,long duration and poor prognosis.”Disease prevention” theory has important significance in preventing incidence,blocking development,prevention of recurrence and metastasis of colorectal cancer.This paper discussed main methods of prevention and treatment of colorectal cancer,which are disease prevention,prevention of disease incidence,preventing disease from exacerbating,and prevention of recurrence.

Objective To seek a time-saving,economical and safe method on cleaning and disinfecting endotraeheat tubes,to improve nursing work efficiency.Methods The endotracheal tubes were divided into four groups,which were sterilized by Xiaojiajing solution,3% hydrogen peroxide solution,rapid multi-enzyme cleaner in advanced and regular method respectively.Each group include 30 tubes.The germ contaminations and flora distribution of endotracheal tubes,as well as cost and time of each method were analized before and after disinfection.Results Before sterilization,the germ contaminations were insignificantly different between four groups(P ＞0.05).The sterile effects of the four groups were statistically insignificant(P ＞ 0.05).However,the time-consuming with Xiaojiajing solution,3% hydrogen peroxide solution and rapid multi-enzyme cleaner was obviously shorter compared with the regular method(P ＜ 0.05),Xiaojiajing solution group cost the least.Conclusions The methods with xiaojiajing solution,hydrogen peroxide solution and rapid multi-enzyme cleaner can shorten the time compared with the regular method in different degree.Considering the costeffectiveness,rapid multi-enzyme cleaner has a good effect but expensive,hydrogen peroxide solution was relatively longer but cheaper and Xiaojiajing solution was cheapest method overall,which is worthy to be nsedf in the hospital.