Objective To explore coping strategies and influence factors in primary glaucoma patients through describing characteristics of their coping strategies.Methods From November 2007 to June 2008,data were collected from 120 primary glaucoma patients in three hospitals in Guangzhou and Shenzhen.The final sample consisted of 100 patients and the data underwent analysis.Results Among different coping styles of primary glaucoma patients,facing was lower than norm,avoiding and yielding were higher than norm.The factors related to coping style were age,different cohabitant,different economic condition,different occupation,different educational level and health payment mode.Conclusions Primary glaucoma patients usually took avoiding or yielding coping styles.Nurses should help patients with low income and education background to face the disease positively.Besides,fully consideration should be given to patients with different age,at the same time,marriage and family support should also exert active function.

OBJECTIVE:To study the effects of particle size of ticagrelor crude drug on in vitro dissolution behavior of Ticagre-lor tablets. METHODS:Ticagrelor crude drug and different particle size of ticagrelor powder A,B,C,D,E after smashing for dif-ferent time(15,30,40,60 s)were used to prepare the tablet by wet granulation method. Accumulative in vitro dissolution rate of prepared tablets within 60 min were determined by UV spectrophotometry at 300 nm(using 0.2% tween as medium,paddle meth-od). Using original tablet as reference preparation,the similarity factor(f2)method was used to compare the similarity of dissolu-tion behavior between 5 prepared tablets and original tablet. RESULTS:d(0.9)of powder A,B,C,D,E were 69.181,40.778, 24.805,12.611,3.083 μm,respectively. The corresponding f2 were 27.77,36.79,50.06,67.68,79.99. CONCLUSIONS:The par-ticle size of ticagrelor crude drug is much smaller,and the dissolution behavior of prepared tablet is closer to that of original tablet. The in vitro dissolution rate of Ticagrelor tablets is improved remarkably by micronization technology. In order to produce Ticagre-lor tablets with the same bioavailability as original tablet,particle size of ticagrelor crude drug powder should be controlled with d(0.9)≤20μm.

Animals ; Dentate Gyrus ; Hippocampus ; Rats ; Receptors, Adrenergic, beta ; Sleep ; Spatial Learning

This study was performed to prepare immobilized β-glucosidase and snailase, then optimize and compare the process conditions for conversion of icariin. Immobilized β-glucosidase and snailase were prepared using crosslink-embedding method. The best conditions of the preparation process were optimized by single factor analysis and the properties of immobilized β-glucosidase and snailase were investigated. The reaction conditions including temperature, pH, substrate ratio, substrate concentration, reaction time and reusing times of the conversion of icariin using immobilized β-glucosidase or snailase were optimized. Immobilized β-glucosidase and snailase exhibited better heat stabilities and could remain about 60% activity after storage at 4 degrees C for 4 weeks. The optimized conditions for the conversion of icariin were as follows, the temperature of 50 degrees C, pH of 5.0, enzyme and substrate ratio of 1 : 1, substrate concentration of 0.1 mg x mL(-1), reaction time of 6 h for β-glucosidase and 2 h for snailase, respectively. In 5 experiments, the average conversion ratio of immobilized β-glucosidase and snailase was 70.76% and 74.97%. The results suggest an effect of promoted stabilities, prolonged lifetimes in both β-glucosidase and snailase after immobilization. The immobilized β-glucosidase and snailase exhibited a higher conversion rate and reusability compared to the free β-glucosidase and snailase. Moreover, the conversion rate of immobilized snailase was higher than that of immobilized β-glucosidase. The process of icariin conversion using immobilized β-glucosidase and snailase was moderate and feasible, which suggests that immobilized enzymes may hold a promise for industrial usage.
Enzymes, Immobilized ; chemistry ; Flavonoids ; chemistry ; Hydrolysis ; Temperature ; beta-Glucosidase ; chemistry

Objective To create a large samples digital database of breast ultrasound imaging (DDBUI),which is open and can be used for scientific research,clinical training and diagnose in order to improve early diagnostic rate of breast cancer by using the database.Methods The database applies structured query language (SQL) to record the integrated resources of patients with breast masses and utilizes Brower/Server (B/S) technology to achieve universal data access.Results The database consists of 853 cases and 5780 images.So far,researchers in home and abroad have done many researches with the images in DDBUI.For example,the speckle reduction,enhancement,segmentation and classification algorithms for computer aided diagnosis (CAD).The database provides a complete shared operation platform for clinical diagnosis and teaching.Conclusions The first public database of breast ultrasound images is created which provides comprehensive information for the development and verification different CAD algorithms,and is helpful for researches,ultrasound diagnosis learning,and improving the breast cancer diagnosis.

Brain delivery of drugs remains challenging due to the presence of the blood-brain barrier (BBB). With advances in nanotechnology and biotechnology, new possibilities for brain-targeted drug delivery have emerged. Biomimetic nano drug delivery systems with high brain-targeting and BBB-penetrating capabilities, along with good biocompatibility and safety, can enable 'invisible' drug delivery. In this review, five different types of biomimetic strategies are presented and their research progress in central nervous system disorders is reviewed. Finally, the challenges and future prospects for biomimetic nano drug delivery systems in intracerebral drug delivery are summarized.

Objective To identify and verify the different genes expression pattern between human endometrial endothelial cells (HEEC) isolated from endometrial cancer and normal endometrium.Methods Endothelial cells were isolated from 5 patients with endometrial cancer (endometrial cancer group 1) and 5 patients with normal endometria tissue (control group 1) admitted from June to November 2007 in Shandong Cancer Hospital.Global expression patterns of endothelial cells were examined using oligonucleotide microarrays.Tissues from 36 patients with endometrial cancer(endometrial cancer group 2) and 10 normal endometrial tissues (control group 2) admitted from January 2007 to April 2008 were selected to verify the expression of different genes,in which up-regulated genes including ESM1,MMP-10,SPP1 and HMGB1 were tested by quantitative real-time PCR and immunohistochemistry.Results Microarray analyses revealed 317 genes that exhibited ＞ 2-fold or ＜ 0.5 differences were identified (including 191 genes up-regulated and 126 down-regulated).Pathway analysis showed that these genes involved cell cycle,cell adhesion molecules,and extracellular matrix-receptor interaction were obviously predominant.Of them,97 up-regulated genes and 44 down-regulated genes were related to angiogenesis.The mRNA expression of ESM1,MMP-10,SPP1 and HMGB1 in endometrial cancer group 2 were 0.898、3.890、1.433 and 1.881,respectively.Positive expression of SPP1,MMP-10,ESM1 and HMGB1 was observed in endometrial cancer group 2.However,the SPP1,ESM1 and HMGB1 was negative expressed in control group 2.Conclusion It shows that there are the different angiogenesis related genes between endometrial cancer and normal endothelium,which will provide insights into the anti-angiogenesis therapy for endometrial cancers.

Objective To explore the relationship between autism spectrum disorder (ASD) and gastrointestinal problems. Methods 172 ASD children were investigated with self-made questionnaire from July, 2014 to Augest, 2015. The frequencies of motor behaviors, vocal behaviors and behavioral problems, and the intensity of the behavioral problems in the period with or without gastrointestinal symptoms were compared. Results The frequencies of motor behaviors (F=67.4, P<0.001), vocal behaviors (F=43.6, P<0.001) and behavioral prob-lems (F=79.4, P<0.001), and the intensity of the behavioral problems (F=65.7, P<0.001) were all more in the period with gastrointestinal symptoms than without gastrointestinal symptoms. Conclusion There are more behavioral problems in the ASD children with the presence of gastrointestinal symptoms;while the behavioral symptoms may be a indicator of gastrointestinal problems in children with ASD.

Objective To explore the significance of detecting miR-145 hypermethylation in non-small cell lung cancer (NSCLC). Methods Seventy-five NSCLC tissues and adjacent tissues was collected from May 2012 to January 2015. The methylation status of miR-145 promoter was tested by bisulfite sequencing PCR (BSP) and the expression of miR-145 evaluated by ISH. The correlation between miR-145 methylation and clinical parameters , and the relationship between miR-145 methylation and expression were statistically analyzed. Results The hypermethy-lation ratio of miR-145 in NSCLC tissues was higher than that in the adjacent tissues. Hypermethylation of miR-145 was correlated with NSCLC differentiation stage, but not with gender and age. In NSCLC, miR-145 hypermethyla-tion was negatively related with its expression. Conclusion MiR-145 hypermethylation is closely related with dif-ferentiation stage in NSCLC tissues. MiR-145 hypermethylation may be a potential biomarker for estimating NSCLC differentiation stage.

Objective To establish the HeLa cell line that can stably express EYFP fluorescent protein as the model for anion channel blocker (halide ion) screening ,which lays the foundation for high throughput screening of anion channel blocker (halide ion) .Methods Through gene recombination technology ,a new lentivirus vector which can express mutant protein YFP (EYFP‐H148Q/I152L) and puromycin resistance ,was built .The mixture of lentivirus vector and packaging plasmid was transfected into 293T cells to produce lentivirus particles . After infection of HeLa cells by the lentivirus particles ,puromycin was used to screen the cells as YFP‐positive HeLa cell line .Then cell amplification was carried out after purification and efficiency of EYFP‐H148Q/I152L was further detected by Real‐time quantitative PCR (RT‐PCR) and Western blot .We then verified the activity of EYFP‐HeLa transfected cell line as a screening model of anion channel blocker .Results Gene sequencing verified that EYFP‐H148Q/I152L was successfully inserted into lentivirus vectors .RT‐PCR and Western blot results showed that the target gene was overexpressed in HeLa cells . The specific yellow fluorescence of EYFP of HeLa cells could be observed under fluorescence microscope with the efficiency of nearly 100% . I- (low permeability ) solution stimulated the opening of anion (halogen) channels ,and the yellow fluorescence was quenched by I - flow into cells . Conclusion The EYFP‐HeLa cell line can stably express EYFP yellow fluorescent protein and is sensitive to the internal flow of I - .Therefore ,it can be used as an ideal screening model of anion channel blocker (halide ion) .