ObjectiveTo study the impact of quercetin on LPS-stimulated macrophage inflammatory cytokine release.MethodsDetermined by MTT assay with different concentrations of quercetin on the activity of RAW 264.7 cells.Cells were divided into five groups:A (control group),B group (LPS intervention group),C (LPS+quercetin 50 μmol/L),D group (LPS+quercetin 150 μmol/L) and E group (LPS+quercetin 250 μmol/L).Cells expression of toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (Myd88) and NF-kappa B (p65) mRNA in each group was determined by real-time determination; Supematant IL-6 and TNF-α secretion level was tested by ELISA determination.ResultsThe quercetin at 0 to 250 μmol/L concentration range on the activity of RAW 264.7 cells did not significantly affect.Compared with the control group,quercetin can effectively reduce the level of LPS-induced TLR4 and of MyD88 and of NF-κB (p65) of rmRNA expression and supematant IL-6 and TNF-α secretion,and dose-dependent manner(P＜0.01).ConclusionQuercetin may reduce macrophage inflammatory cytokine secretion by inhibiting the activation of TLR-Myd88-NF-κB pathway.

refer to the cases with pression caused by both posterior and anterior matters, the posterior-anterior surgery is better.

Objective To assess the feasibility of heterogeneous acellular dermal matrix(ADM)seeded with adipose derived stem cells(ADSC)for urethroplasty in a rabbit model.Methods ADSC were isolated from a rabbit and expanded in vitro,then identified by flow cytometry.We seeded ADSC onto the ADM and made it into tissue-engineered urethra.12 male rabbits were removed 1 cm urethra and divided into experiment group and control group.There were 6 rabbits in each group.Reconstructed urethra with tissueengineered urethra was used in experiment group,while unseeded ADM were used in control group.Urethrography was performed at 6 months after surgery.The animals were scarified at 3 and 6 months after surgery and the repaired urethra were harvested.H&E staining and immunohistochemical staining were performed with cytokeratin AE1/AE3 and smooth muscle desmin makers.Results The morphology of isolated ADSC was with long spindle cross-links,and had multicentral growth.Flow cytometry showed that the ADSC expressed CD166,CD105,CD90 and CD44,but not expressed CD45 and CD13.The cells could growth well on the ADM and showed good biocompatibility with it.All animals could void normally,urethrography showed there was no significant stenosis.3 months after surgery,the experiment group appeared regenerated smooth muscle but not in the control group,both groups did not regenerate urothelium.At 6 months urothelium and smooth muscle cells could be observed in the experiment group,but only the smooth muscle was evident in the control group.Conclusions By applying tissue engineering methods,we can seed the ADSC onto the heterogeneous ADM and make it into tissue-engineered urethra,which can help improve the reconstructive effect of urethra.

OBJECTIVETo investigate the clinical outcomes of the posterior C1,2 screw-rod combined with C2 unilateral translaminar screw and contralateral pedicle screw fixation and autogenous bicortical iliac crest graft fusion in treating upper cervical instability with vertebral artery variations.

METHODSFrom June 2008 to December 2012, the clinical data of 12 patients with upper cervical instability underwent C1 lateral mass screws-C2 unilateral laminar and contralateral pedicle screws fixation combined with autogenous bicortical iliac crest graft fusion were analyzed retrospectively. There were 8 males and 4 females with a mean age of 47.5 years (ranged, 16 to 77 years). Patients suffered from occipitocervical activity limitation of motion with pain or not, VAS was 0-7 points with an average of (3.50 +/- 2.71) points. Unilateral vertebral artery hypoplasia was demonstrated by vertebral arteriography (VAG) or CTA in all patients. Cervical X-ray and CT scans were done within 7 days after surgery in order to confirm internal fixation position. Internal fixation loosening and breakage, reduction losing, bone fusion ratio were observed during follow-up.

RESULTSNo nerves and vertebral artery injuries occurred during operation. Cervical pain obviously decreased and VAS was (0.92 +/- 0.90) points. Cervical alignment of 12 patients had well-recovered by X-ray while Atlantoaxial ventral lamina cortex of 1 case was encroached by CT scan without neurological symptom. All patients were followed up for 6 months to 3 years, no internal fixation loosening and breakage, reduction losing were found. All patients obtained bone fusion in 6-12 months after operation.

CONCLUSIONPosterior C1 lateral mass screws-C2 unilateral laminar and contralateral pedicle screws fixation combined with autogenous bicortical iliac crest graft fusion can achieve biomechanical stability and raise the successful rate of bone fusion, while avoiding the risk of vertebral artery injury and overcoming the insufficient of bone fusion during bilateral laminar screws placement as well. Posterior C1 lateral mass screws fixation is a safe and effective additional method in treating upper cervical instability with vertebral artery variations.

Adolescent ; Adult ; Aged ; Bone Screws ; Cervical Vertebrae ; surgery ; Female ; Humans ; Internal Fixators ; Joint Instability ; surgery ; Male ; Middle Aged ; Tomography, X-Ray Computed ; Vertebral Artery ; pathology

【Objective】 To study the differentiate expression genes and regulation signaling pathways related to the occurrence and development of dilated cardiomyopathy with heart failure, we used bioinformatics methods to explore gene chip in gene expression omnibus(GEO) and genes related to dilated cardiomyopathy in online mendelian inheritance in man(OMIM) . 【Methods】 GSE21610 and GSE29919 chip gene sets sequenced by Herz- &Diabeteszentrum NRW laboratory of the University of Bochum, Germany with myocardial biopsy specimens from clinical cases under the platform GPL570 and uploaded to GEO public database were selected to perform our study. Myocardial biopsy specimens from dilated cardiomyopathy with heart failure and normal cardiac function were regarded as the experimental group(14 and 21 cases, respectively) and the control group(12 and 8 cases, respectively). Up-regulated expression genes with the criteria: P < 0.05, were screened in GEO2R with the selected samples of two chips, which were then used to perform kyoto encyclopedia of genes and genomes(KEGG) pathways analysis, gene ontology(GO) function analysis, and protein-protein interaction(PPI) analysis, and the results were displayed through Volcano map, Venn map, Heat map, and Bubble charts with enrichment pathways drawn by R language packages. Meanwhile, KEGG pathways with the criteria: NOM. P < 0.05, and core genes relating to dilated cardiomyopathy with heart failure were performed through gene set enrichment analysis (GSEA). All candidate genes were then intersected with the reported genes in the OMIM, respectively, and clinical significance of these candidate genes was explored in relevant literatures. 【Results】 A total of 173 up-regulated expression genes with P < 0.05, were obtained by GEO2R, which are mainly related to inflammatory signals, cell proliferation and differentiation regulating, and classical apoptotic signaling pathways. These genes were intersected with the 754 reported genes in OMIM, and three reported up-regulated expression genes were obtained: NPPA for diagnosis of heart failure, APOA1 that associates with cytokine action, and COL6A1 that regulates lateral tubular remodeling. 158 and 46 core genes from KEGG pathways with NOM. P < 0.05 were obtained by GSEA, respectively, which were then intersected with the 754 reported genes in OMIM, and two core genes were obtained: PRKCA, enhancing myocardial contractility, and BMP2, promoting the development of heart failure. 【Conclusions】 Based on bioinformatics analysis, we found that the candidate genes PRKCA, BMP2, NPPA, and COL6A1 are likely to be closely related to the occurrence and development of dilated cardiomyopathy with heart failure, which can be used to reveal meaningful therapeutic clues and directions for the clinical treatment of dilated cardiomyopathy with advanced cardiac dysfunction.

Adenocarcinoma/surgery* ; Esophageal Neoplasms/surgery* ; Esophagogastric Junction/surgery* ; Gastrectomy ; Humans ; Margins of Excision ; Neoadjuvant Therapy ; Retrospective Studies ; Stomach Neoplasms/surgery*

To investigate the effect of compound Chinese traditional medicine PC-SPES II I in inhibiting proliferation of human prostate cancer cell LNCaP based on the androgen receptor (AR) signaling pathway. The effect of PC-SPES II on LNCaP cell proliferation was detected by MTT assay. According to the findings, at the mass concentration of 180-1 440 mg x L(-1), PC-SPES II significantly inhibited the proliferation of LNCaP cells; the IC50 of PC-SPES II at 24 h and 48 h were 311.48, 199.01 mg x L(-1), respectively. The flow Cytometry detection showed 240 mg x L(-1) PC-SPES II arrested cells in G2/M phase, and an obvious apoptotic peak appeared before G0/G1 peak and rose over time. Meanwhile, Hoechst 33258 staining revealed apoptotic cellular morphology. Annexin V-FITC/PI staining manifested an increase in apoptotic cell ratio at the PC-SPES II concentration of 480 mg x L(-1) in a dose dependent manner. The prostate specific antigen (PSA) secretion of LNCaP cells was tested by PSA ELISA kit. Besides, compared with 25 mg x L(-1) Bic, 480 mg x L(-1) PC-SPES II significantly reduced the cell secretion of PSA. The AR and PSA mRNA and protein expressions were detected by qRT-PCR and Western blot. According to the results, after the induction of LNCaP cells with synthetic androgen 25 μg x L(-1) R1881, 240-480 mg x L(-1) PC-SPES II notably down-regulated the AR and PSA mRNA and protein expressions and inhibited the translocation of AR from cytoplasm to nucleus. In summary, PC-SPES II significantly can inhibit the in vitro proliferation of LNCaP cells and arrest cell cycle arrest in G2/M phase. Its mechanism may be associated with the down-regulation of the AR and PSA expressions and the inhibition of AR nuclear translocation.
Antineoplastic Agents, Phytogenic ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Male ; Prostate-Specific Antigen ; genetics ; metabolism ; Prostatic Neoplasms ; drug therapy ; genetics ; metabolism ; physiopathology ; Receptors, Androgen ; genetics ; metabolism ; Signal Transduction ; drug effects

Objective To evaluate risks of symptomatic pulmonary embolism (PE) in deep vein thrombosis (DVT) patients complicating iliac vein compression syndrome (IVCS).Methods Between January 2010 and January 2015,patients diagnosed with lower extremity DVT and IVCS at our institution were included.The odds of symptomatic PE versus lower extremity DVT complicated with IVCS were assessed using Logistic regression models.Its association with age,gender,thrombophilic risk factors,degree of stenosis,filter implantation and symptomatic PE were assessed.Results Of 759 patients,410 patients had inferior vena cava (IVC) filters implanted and 349 had not.In filter placement group,3 patients suffered from symptomatic PE among 32 with thrombi intercepted in IVC filters.In the group with no IVC filters placement,39 cases suffered from symptomatic PE.Symptomatic PE was in positive correlation to respiratory disease and right lower extremity DVT,and negative correlation to IVC filter implantation.Conclusions In lower extremity DVT patients complicated with IVCS,the right lower extrenity DVT and respiratory disease are risk factors of symptomatic PE.IVC filter implantation prevents symptomatic PE from happening in most patients.

【Objective】To evaluate the role of serum antimullerian hormone （AMH） concentration in predicting clinical outcomes in controlled ovarian stimulation and intrauterine insemination （IUI）. 【Methods】 A retrospective analysis of IUI data from patients with polycystic ovary syndrome and infertility in our reproductive center from January 2014 to August 2017. According to the clinical outcomes，data was divided into three groups：clinical pregnancy group，non-pregnant group，and cancellation cycle group due to multiple follicular or no dominant follicular develop. The ovarian function evaluation indexes were compared such as serum AMH，basal FSH and basal sinus follicle（AFC）. The cutoff values of the AMH to predict multi- follicular development or no dominant follicular development which IUI cycles were cancelled，and to predict obtain cumulative clinical pregnancy outcomes were calculated according to the ROC curve to cancel the cycle. 【Results】 The clinical pregnancy rates of PCOS patients were from 15.9% to 17.1% ，while the cumulative clinical pregnancy rate increased in repeat cycles （≤3 cycles） was 21.6% ，significantly higher than the average clinical pregnancy rate（16.7%）during the first cycle. AMH levels in the cancelled cycle group were significantly higher than those in the non-cancelled cycle group［（14.1±6.5）vs（10.3±4.3）ng/mL，（14.1±6.5）vs（9.3±4.3）ng/mL， P<0.025］. Compared with the clinical pregnancy group，cancel cycle group and non- pregnant group，the mean AFC of the former two groups were significantly higher［（34.5±11.4）vs（30.7±11.3），（7.8±10.8）vs（30.7±11.3），P<0.025］. In addition，we found that women′ s age，baseline FSH were negatively correlated with the cumulative pregnancy rate of repeated IUI cycles，and women′s baseline BMI，baseline LH，AFC，and AMH were positively correlated with cumulative pregnancy rates. The number of mature follicles on the HCG triggering day，as well as the value of AMH，may be the influencing factor of IUI cumulative clinical pregnancy. By ROC curve analysis，we assume that AMH is more suitable than the AFC to predict IUI cycle cancellation rate and the cumulative pregnancy rate.【Conclusion】Repeated IUI cycles can be improved cumulative pregnancy rate of PCOS infertile couples. AMH，as an important index to measure ovarian reserve function，can be used to predict the the IUI cumulative clinical pregnancy outcomes and cancelled cycle rates：as AMH increased to more than 6.56 ng/mL，the pregnancy rate increased；but when AMH ≥14.72 ng/mL，the risk of cancelled IUI cycles was increased，becasues of multi-follicular developing and absence of dominant follicle development.

Objective To establish a rat skin organ culture model to study the initiation of hair follicle morphogenesis, and the dynamic expression of Wnt10b/β-catenin in the developing hair follicle. Methods The dorsal skins of SD rat at embryos 14-17 (E14-E17) were cultured on a gelatin sponge-supported tissue culture system at the air/liquid interface of DMEM with 10 % fetal bovine serum (FBS) for 3-6 days, some of which removed from El5 were cultured in DMEM with FBS of different concentrations. HE staining and fluoroimmunoassay were adopted. Results The model we established allowed skin tissues isolated from E14-E15 to develop in a manner that was histologically and temporarily similar to the process in vivo. However, the developing hair follicle ceased to continue when their morphogenetic process reached the forth stage, and the concentration of FBS did not show any significant effect on the development of hair follicle. Expression of Wnt10b/β-catenin was induced in culture, as it also occurred in vivo,but grew weak till it disappeared in culture for 6 days, which was accompanied by development halt of hair follicle. Conclusions A rat skin organ culture model is established in which the morphogenesis of hair follicle takes place in a manner similar to in vivo, and Wnt10b/β-catenin probably has a close connection with the early morphogenesis of hair follicle.