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.

Objective To study the effects of curcumin mediated photodynamic therapy (PDT)on the growth and proliferation in human cervical cancer cell line H8 in vitro and in vivo,and to investigate its antitumor mechanisms.Methods The effects of curcumin mediated PDT on proliferation of human cervical cancer H8 cell by MTT assay was used to screen the optimal parameter.Changes in cell morphology were observed by May-Gr ünwald-Farbstoff Giemsa staining.The apoptosis rate was estimated by flow cytometry.The effect of PDT by curcumin on the expressions of Bcl-2,P53 and survivin in H8 cells was detected by fluorescence real-time reverse transcription-polymerase chain reaction (RT-PCR).Forty BALB/C nude mice underwent subcutaneous injection of H8 cell line so as to establish animal models,and then were randomly divided into four equal groups:control group,irradiation alone group,curcumin alone group,curcumin PDT group.HE staining and pathological examination were performed.Immunohistochemical study was conducted to detect the protein expression of the apoptosis inhibiting genes of Bcl-2.Results The proliferation inhibition of H8 cells was obvious after PDT when curcumin 5μmol/L with irradiation 100 J/cm2,and with dose dependent manner.Typical morphologic features of apoptosis appeared characterizedly by marked chromatin condensation,nuclear pyknosis and fragmentation,and the appearance of apoptotic bodies.The total apoptosis rate was higher in PDT group [(47.21 ± 4.11)％]than in control group(1.71 ±0.16) ％ (P＜0.01).The mRNA expression of Bcl-2,P53 and survivin in H8 cells were suppressed significantly.HE staining showed remarkable subcutaneous necrosis in the PDT group.Immunohistochemistry showed remarkable down-regulation of protein expression of Bcl-2(P＜0.01).Conclusions Curcumin-mediated photodynamic therapy has a significant killing effect on H8 cells in vivo and in vitro.Its antitumor effect might be related to induction of Tumor cell apoptosis and suppression of Bcl-2 mRNA and protein expression.

Objective To detect the histological characteristics of collagen nodules from hypertrophic scars (HS) and investigate the origin of collagen nodules.Methods The scar tissues were collected from patients with plastic operation.Morphological characteristics of collagen nodules were observed by light microscopy of HE-stained sections; expressions of type Ⅰ /Ⅲ collagens were observed by polarized light microscopy of sirius red-stained sections; expression and distribution of myofibroblasts (MFb)-specific protein (α-smooth muscle actin,α-SMA) were observed by immunostaining in order to observe level of local tissue tension.Results Collagen nodules varied in shape,not only sphereshaped,and in size.Moreover,abundant fibroblasts (Fb) with large and light-stained nuclei were seen in the nodules compared to non-nodule area,indicating that the cells located in the modules were active.Some collagen nodules were composed largely of collagen type Ⅲ (green),but some mainly contained collagen type Ⅰ (red or yellow),indicating the difference in the time of nodule formation.α-SMA was expressed mainly in the deep dermis equivalent to the level of reticular layer of the new scar tissues (2 months after injury) ; α-SMA was expressed mainly in the nodules of the old scar tissues (2-10 years after injury),but almost not in non-nodule areas except for a strongly positive staining in the vessels.Moreover,α-SMA presented a heterogeneous distribution in the collagen nodules,with stronger expression in the epidermal end than in the subcutaneous tissue end and stronger expression in the superficial dermis than that in the deeper part.It was suggested that there existed massive amount of MFb and high tension in the nodules arid that the tension distribution was not uniform in or between the nodules.Conclusions Collagen nodules are of varying shape and size and collagen types are associated with the time of nodule formation.Moreover,Formation of the collagen nodules may be closely related to the distribution and evolution of the local tissue tension.

Objective To explore the surgical methods for the treatment of the total anomalous pulmonary venous connection (TAPVC) and choices to prevent related complications.Methods We analyzed retrospectively the clinical data of 24 cases with TAPVC admitted to our hospital from Jan 2006 to Dec 2011,including 15 male and 9 females with the age range of 50 d-14 years.There were 10 cases younger than six months,accounting for 41.7％ (10/24).The average body weight was (9.30 ± 3.96) kg.There were 8 cases 33.3％ (8/24) had a body weight of below 10.00 kg.Among the patients,16 cases (66.7％,16/24) were supracardic type,6 (25.0％) were cardiac type,and 2 (8.30％) were intracardiac type.For the treatment of the upracardiac type,5 cases were treated through the right atrium and interatrial septum incision path;Eleven cases were through the left atrial anastomosis.For the treatment of the cardiac type,the right atrial incision was used for coronary vein antrum isolation,and the patch was carefully packaged to separate the coronary sinus openings into the left atrial side.For the 2 cases of the intracardiac type,heart was slightly lift towards the right,and the venous anastomosis was performed for the left atrial posterior wall and the summary vein,and the vertical vein was then ligated.Results No surgery-related death occurred.Reoperation was performed for 1 patient occurred pulmonary edema due to pulmonary venous obstruction induced two days post-surgery.Condition was improved after the extension of left atrial side as the patient was found to have anastomotic stenosis.Postoperative arrhythmia were observed in 7 cases (29.2％,7/24),including 3 nodal arrhythmia (12.5％,3/24) and 4 (16.7％,4/24) atrial arrhythmia.Patients were followed up for 4-24 months.All children during the follow-up period were in good condition.They had significantly improved activity tolerance compared with pre-surgery.Chest X-ray showed clear markings free of congestion.Conclusion Appropriate surgical approach and routes could help improve the success rate of surgery treatment of TAPVC and reduce postoperative complications,thus achieving good therapeutic effect.

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 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 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.