Adult ; Chondroblastoma ; pathology ; Chondroma ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Ovarian Neoplasms ; pathology ; surgery ; Ovary ; pathology ; Teratoma ; pathology

Objective To establish rat models with Alzheimer's disease(AD) induced by ?-amyloid,and to observe the effects of nicotine on learning and memorizing ability of the rats. Methods Aggregated A?1-40 was injected into the bilateral basal forebrain of the rats.Learning and memorizing ability of the rats were inspected through Morris water maze test.The effects of nicotine on learning and memorizing ability of the rats induced by ?-amyloid peptide were observed. Results The learning and memorizing ability of AD animal models injected aggregated(A?1-40) for 2 weeks decreased(P

Objective To share our experiences on integrated services in providing fetal diagnosis and postnatal treatment for congenital diaphragmatic hernia(CDH).Methods A retrospective analysis was conducted on 25 pregnancies diagnosed as CDH by both prenatal ultrasound and MRI in Maternal and Children Hospital of Guangdong Province from January 2012 to January 2014.All of the subjects received integral medical management including prenatal management (prenatal diagnosis and consultation), perinatal management (prenatal care and delivery) and neonatal treatment.Results Among the 25 CDH fetuses, 11 were mild, nine were moderate, and five were severe.One severe case, who was diagnosed at 26 gestational weeks, was aborted on demand of the mother.The other 24 cases continued their pregnancy and all delivered after 35 weeks including 13 cesarean sections (one due to twin pregnancy and 12 due to maternal demand) and 11 vaginal birth.The mean gestational age when CDH was diagnosed was (24.5 ± 3.5) weeks, and the 24 women delivered at an average of (37.5 ± 1.4) gestational weeks.The eleven mild cases accepted mask oxygenation.For those 13 moderate or severe CDH cases, all received dexamethasone to promote fetal lung maturity at 32 gestational weeks, seven were intubated before clamp the cord, and the other six did after.These 13 babies accepted high-frequency oscillation ventilation, with a median duration of 58 hours, and some of them treated with inhaled nitric oxide on requirement with a median duration of 52 hours.Except two cases died before operation, the rest 22 cases underwent neonatal surgery.One moderate case died at 48 hours after surgery due to pulmonary hypertension and respiratory failure.Another one severe case withdrew treatment at two months old.The other 20 infants recovered fully.Conclusions Integrated management including prenatal diagnosis and postnatal treatment, provides an effective and streamlined mode for diagnosis and treatment of CDH.Therefore,it might minimize potential medical risks.

2', 3', 5'-Tri-O-acetyl-N6-(3-hydroxylaniline)adenosine (WS070117) is a derivative compound of natural product cordycepin. It has significant lipids regulating activity and low toxicity which has been proved by in vitro and in vivo experiments. In this study, 1H NMR-based metabolomics was used to investigate the dose-related effects of WS070117 on hyperlipidemia of high-fat-fed hamsters. The hyperlipidemic hamsters were administrated with six different doses of WS070117, including 3, 12, 50, 100, 200 and 400 mg x kg(-1) x d(-1). 1H NMR spectra of hamster serum were visually and statistically analyzed using two multivariate analyses: principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA). As a result, WS070117-treated groups showed dose-related regulation of metabolites associated with lipid metabolism, choline metabolism and glucose metabolism. The dose of 3 mg x kg(-1) x d(-1) of WS070117 only exhibited a little lipids regulating activity. However, the doses of 12 and 50 mg x kg(-1) x d(-1) of WS070117 both regulated the contents of metabolites to reverse significantly toward normal levels. When the dose of WS070117 reached 100 mg x kg(-1) x d(-1), it was more effective than positive control drugs. The work suggested that NMR-based metabolomics might be a valuable approach to evaluate dose-related effects of lipids regulating compounds.
Adenosine ; analogs & derivatives ; pharmacology ; Animals ; Cricetinae ; Hyperlipidemias ; metabolism ; Least-Squares Analysis ; Lipid Metabolism ; drug effects ; Magnetic Resonance Spectroscopy ; Metabolomics ; Multivariate Analysis ; Principal Component Analysis

Objective To explore the effect of Angiopoietin-2(ANG-2) and Endostatin (ENS) in patho genesis and development of endometriosis.Methods Twenty-five endometriosis cases and 24 controls were enrolled. ANG-2 and ENS in endometrium were detected by Immunohistochemistry. The concentrations of ANG-2 and ENS in peritoneal fluid were measured with enzyme linked immunoabsorbant assay.Results In the EMs group,ANG-2 positive rate in eutopic endometrium was significantly higher than that of ectopic endometrium. The ANG-2 positive rate in ectopic endometrium was significantly higher than that of control group;in EMs group,the ENS positive rate in ectopic endometrium was significantly higher than that in eutopic endometrium.The ENS positive rate in eutopic endometrium was significantly higher than that in control group. There was no significant difference of ANG-2 or ENS between stageⅠ～Ⅱand stage Ⅲ～Ⅳ. In peritoneal fluid,ANG-2 and ENS concentration and ratio of ANG-2/ENS in endometriosis were significantly higher than that in controls. Conclusion The effect of angiopoietin-2 and endostatin in angiogenesis of endometriosis are important play a role in pathogenesis and development of the endometriosis.

Objective To understand the status of drinking-water supply and the progress of waterimproving projects in drinking-water-borne endemic fluorosis areas in Henan,and to provide scientific data for related government departments to carry out prevention and surveillance plan for those areas.Methods Questionnaire survey was carried out in all the villages in drinking-water-borne endemic fluorosis areas in Henan in 2010.Each village was given one set of questionnaire.Results By the end of 2010,the total number of fluorosis villages in Henan was 25 434,among them 11 484 villages had been conducted water-improving projects,accounting for 45.15％.Currently,9267 water-improving projects worked properly,accounting for 36.4％(9267/25 434)of all villages surveyed,and 80.7％ (9267/11 484)villages had water-improving projects.The projects in 2217 villages do not work properly,accounting for 19.3％(2217/11 484) of all projects.There were 5832 water-imp.roving projects conducted amnog 2005-2010,accounting for 50.8％ (5832/11 484) of all water-improving projects.Among villages with no such projects,97.5％(15 769/16 167) of them used shallow groundwater,and in villages with water-improving projects,89.6％ (8303/9267) of them used deep groundwater as drinking-water supply.Conclusions After 2005,the water improving progress was significantly speed up in drinking-water-borne endemic fluorosis areas in Henan,but progress of the water improving projects is relatively slow due to changing and expanding of fluorosis areas.The government should increase investment and improve the proportion of waterimproving defluoridation.

AIM:To study the visual acuity and refractive status of students pupils and middle school students in Shenzhen, and to provide a scientific basis for the prevention and control of myopia.
METHODS:A cluster sampling method was used to select five primary school students(6 737) and three junior middle school students(1 925) from Shenzhen. The visual acuity, anterior segment, fundus, eye position, and refractive status were measured. Information on associated factors for poor vision were also obtained using a questionaire. The risk factors of poor vision and the rate of myopia between grade or gender were analysed by Chi-square test.
RESULTS:The rate of poor vision was 67. 0%. Female, family history of high myopia, long time of continuous look near, short time of outdoor activities were the main risk factors. The rate of emmetropia, hyperopia, astigmatism and myopia were 15. 1%, 11. 3%, 11. 0% and 62. 6% respectively. Emmetropia, hyperopia and astigmatism incidenece rate decreased with age growing, but myopia incidence rate was increased. There were significant differences between adjacent two grades in myopia(χ2=7. 338-45. 018, P<0. 05 ) except the primary grade six and the junior grade one. There were significant differences between boys ( 61. 0%) and girls ( 65. 5%) in myopia(χ2=17. 180, P<0. 05).
CONCLUSION:The rate of poor vison is pretty high in students of Shenzhen aged between 5 to 16 years old, and myopia is the main reason. The development rate of myopia is increased with age. Early management of myopia may play an important role in controlling poor vision in students.

Objective To evaluate the value of GE′s Q-analysis real-time ultrasonic elastography quantitative analysis software in the diagnosis of breast diseases and explore the best cutoff point of the breast diseases diagnosis.Methods The elastograms of 71 breast lesions(66 patients)were evaluated by using the GE LOGIQ E9 with the Q-analysis software.All the 71 lesions were diagnosed as malignant and benign lesions by surgery or biopsy.The receiver operating characteristic (ROC)curves of the entirety elasticity rate and local elasticity rate was performed.We compared the areas under ROC curves ( AUC) of the two modalities and confirmed the best cutoff point of the breast diseases diagnosis .We also assessed the sensitivity and specificity of the two modalities .Lastly we assessed the ROC curves with Z test to determine whether the difference between the two modalities was significant .Results Among the 71 leisions (66 patients),there were 37 benign lesions and 34 malignant ones.The elastograms of the leisions showed that the elasticity of 37 benign leisions was good ,the hardness value was low and the texture was even .As for the 34 malignant leisions,the elasticity was bad,the hardness value was high and the texture was uneven .The AUC of the local modality was 0.899 ( >0.5).The AUC of the entire modality,was 0.985 ( >0.5).Both modalities were accurate for the diagnosis of breast diseases .When the cutoff point of entirety elasticity rate was set as 3.60,the sensitiveness was 82.4%and the specificity was 86.5%.When the cutoff point of local elasticity rate was set as 2.60,the sensitiveness was 97.1% and the specificity was 91.9%.The difference between the two modalities was significant (Z =2.621,P=0.0088).Conclusions Q-analysis real-time ultrasonic elastography quantitative analysis is able to evaluate the rigidity and texture of tissue and is valuable to distinguish benign breast lesions between malignant breast lesions .The sensitiveness and specificity of local modality are higher than that of entirety modality .

Objective To explore the effect of Angiopoietin-2(ANG-2) and Endostatin (ENS) in patho genesis and development of endometriosis. Methods Twenty-five endometriosis cases and 24 controls were enrolled. ANG-2 and ENS in endometrium were detected by Immunohistochemistry. The concentrations of ANG-2 and ENS in peri-toneal fluid were measured with enzyme linked immunoabsorbant assay. Results In the EMs group, ANG-2 positive rate in eutopic endometrium was significantly higher than that of ectopic endometrium. The ANG-2 positive rate in ectopic endometrium was significantly higher than that of control group; in EMs group, the ENS positive rate in ec-topic endometrium was significantly higher than that in eutopic endometrium. The ENS positive rate in eutopic endo-metrium was significantly higher than that in control group. There was no significant difference of ANG-2 or ENS between stage Ⅰ～Ⅱand stage Ⅲ～Ⅳ. In peritoneal fluid, ANG-2 and ENS concentration and ratio of ANG-2/ ENS in endometriosis were significantly higher than that in controls. Conclusion The effect of angiopoietin-2 and endostatin in angiogenesis of endometriosis are important play a role in pathogenesis and development of the endo-metriosis.

Objective To analyze the clinical features of pandrug-resistant Acinetobacter baumannii (PDR-Ab) in a hospital and compare the efficacy of different antibiotic treatments on patients with pneumonia caused by PDR-Ab.Methods Data were ret- rospectively collected from all isolated PDR-Ab strains in our hospital from February 2004 to March 2005.The clinical features and outcomes were reviewed.Results A total of 77 strains of PDR-Ab were collected, 45 of which were pathogens causing clini- cal infections (35 strains from lower respiratory tract, 6 from bloodstream, 3 from drainage fluid, and 1 from wounds).Lower respiratory tract was the most common source of PDR-Ab.More than 90% of the isolated PDR-Ab strains produced OXA-23 type?-lactamase.Cefoperazone-sulbactam plus minocyeline showed good efficacy for patients with PDR-Ab pneumonia.The total clinical cure rate was 68.4%.Bacterial eradication rate was 42.1%.The factors influencing bacterial clearance were pro- longed mechanical ventilation prior to positive culture (17.5 d vs 5.5 d).mixed infection (100% vs 12.5%) and lower GCS score (9.1?0.7 vs 13.2?2.1).Concomitant septic shock (OR=13.8) and APACHEⅡscore (OR=2.1) were independent factors of clinical outcome.Conclusions Nosocomial infections caused by PDR-Ab are not untreatable.Our analysis suggests that cefoperazone-sulbactam plus minocycline may be an effective treatment for lower respiratory tract infections caused by PDR-Ab in our hospital.