ObjectiveTo analyze the effect of empowerment management for nursing risk in blood purification center.Methods16 nurses were chosen and nursing risk were authorized to six management groups,each group was respectively responsible for their share of nursing work.Before the implementation of empowerment management for nursing risk,100 patients undergoing maintenance hemodialysis were chosen,and after the implementation another 100 patients were also selected.The nursing effect was compared before and after the implementation.ResultsAfter the implementation,the score of nursing quality and patients' satisfaction degree were significantly improved.ConclusionsThe effective empowerment management for nursing risk can raise management effect of nurses continuously,and stir up the initiative and creativity of nursing staff,lower nursing risk occurrence.It is an effective management method that promotes nursing quality comprehensively.

Objective To discuss alexithymia in patients with maintenance hemodialysis and its impact on medical coping style and the ability of daily living. Methods The patients with end-stage renal disease treated by the maintenance hemodialysis (MHD) were divided into 2 groups, namely, alexithymia group (total score>60) and non-alexithymia group (total score <50) ,according to the Toronto Alexithymia Scale (TAS-20). The Medical response to the questionnaire (MCMQ) and the activities of daily living scale (ADL) were used to evaluate the patients. Results The TAS-20 score was (72.31±12.28) in 67 cases of patients with MHD. Among these, 31 cases for TAS-20 total score>60 points ,with an average score (82.37±15.84) and 26 cases for TAS-20 total score <50 points, with an average score (50.17±10.24). There was significant difference (t=8.90, P<0.01). The face factor score of MCMQ was significantly lower in alexithymia groups than that in non-alexithymia group,while the avoidance and subordination factor score was significantly higher than that in non-alexithymia group(P<0.01 or 0.05). The ADL scores and factor scores of the alexithymia group were significantly higher than that of non-alexithymia group,and there was a significant difference (t=3.53, P<0.01). Correlation analysis showed that TAS-20 score and the face factor score of MCMQ was significantly negatively correlated with MCMQ e-vasive and subordination factor,and factor scores and ADL score was significantly positively correlated (P<0.01 or 0.05). Conclusion MHD patients in the alexithymia group tend to use and yield response to avoid negative cop-ing style and less use of active coping style. The quality of life and activities of daily living of MHD patients in alex-ithymia group are worse than that of the non-alexithymia group.

Objective To evaluate the clinical efficacy of laparoscopic surgery in the treatment of endometriosis. Methods Clinical data of 102 patients with endometriosis treated by laparoscopic surgery were retrospectively analyzed. Results There were no conversions to open surgery or complications in all the patients. The operation time was 80 5 min ? 28 3 min, the intraoperative blood loss was 25 2 ml ? 23 2 ml and the postoperative hospital stay 3 0 d ? 1 2 d. Follow-up for 6 months ～ 66 months in 83 patients showed 21 cases of recurrence. Normal pregnancy was seen in 23 patients among 53 patients with endometriosis associated with infertility. Conclusions Laparoscopic surgery is effective for endometriosis, but the danger of recurrence should not be overlooked.

Molecularly imprinted polymers for dimethoate recognition were synthesized by the precipitation polymerization technique using methyl methacrylate (MMA) as the functional monomer and ethylene glycol dimethacrylate (EGDMA) as the cross-linker. The morphology, adsorption and recognition properties were investigated by scanning electron microscopy (SEM), static adsorption test, and competitive adsorption test. To obtain the best selectivity and binding performance, the synthesis and adsorption conditions of MIPs were optimized through single factor experiments. Under the optimized conditions, the resultant polymers exhibited uniform size, satisfactory binding capacity and significant selectivity. Furthermore, the imprinted polymers were successfully applied as a specific solid-phase extractants combined with high performance liquid chromatography (HPLC) for determination of dimethoate residues in the cucumber samples. The average recoveries of three spiked samples ranged from 78.5% to 87.9% with the relative standard deviations (RSDs) less than 4.4% and the limit of detection (LOD) obtained for dimethoate as low as 2.3μg/mL.

Objective To investigate the influence of pertussis toxin(PTX)on G protein-coupled estrogen receptor(GPER)-mediated activation of phosphatidylinositol 3-kinase(PI3K)/protein kinase B (Akt)signaling activated by 17 β-estradiol(17β-E2)in endometrial carcinoma cells.Methods Expressions of GPER protein were detected by immunohistochemical SP method in Ishikawa and HEC-1A cells.Changes of levels of GPER,ERα and ERβ protein and the activation of Akt protein were observed by western blot in the two cells after they were treated by PTX for 30 minutes at different concentrations(0,0.1,0.5,1.0 μg/ml),and then co-stimulated with with 1 × 10-6 mol/L 17β-E2 respectively at different time (Ishikawa 30 minutes,HEC-1A 15 minutes).Results(1)Immunohistochemical SP method showed that GPER was positive stained in cell cytoplasm of Ishikawa and HEC-1A cell.(2)After co-treated with PTX at different concentrations(0,O.1,0.5,1.0 μg/ml)and 10-6 mol/L 17β-E2,in Ishikawa cell,the ratio of pAkt/Akt was 0.74 ±0.54,0.34 ±0.06,0.18 ±0.03,0.07 ±0.15,the gray values of GPER was 0.872 ± 0.490,0.395 ± 0.054,0.145 ± 0.014,0.034 ± 0.008,and with increasing concentration of PTX,the ratio of p-Akt/Akt and the expression of GPER decreased gradually(P ＜ 0.05),which was most obviously when the concentration was 1.0 μg/ml(F =63.729,P =0.0001;F =160.284,P =0.0001);ERα and ERβ protein had no significant change among different groups(P ＞0.05).In HEC-1A cell,the ratio of pAkt/Akt was 0.73 ±0.09,0.26 ±0.14,0.11 ±0.03,0,the Gray values of GPER is 0.927 ±0.134,0.485 ± 0.022,0.194 ± 0.004,0,and with increasing concentration of PTX,the ratio of p-Akt/Akt and the expression of GPER decreased gradually(P ＜ 0.05),which were also completely inhibited when the concentration was 1 μg/ml(F =1039.321,P =0.0001;F =109.646,P =0.0001),ERα protein had no significant differences(P ＞ 0.05)among different groups.ERβ was negatively expressed.Conclusion The results proposed that the activation of PI3K/Akt signaling in Ishikawa and HEC-1A cells could be inhibited after blocking the role of GPER by PTX.

Objective To investigate the relationships between expressions of HPV and EBV in larynge-al carcinoma. Methods DNA flow-through hybridization and gene chip genotyping technology(HybriMax)and real-time quantitative PCR were used for 37 subtypes of HPV detection and quantitative detection of EBV in 101 cases of laryngeal cancer paraffin embedded tissue specimens. 43 cases of vocal cord polyp of paraffin embedded tissue specimens were used as the controls. Results The positive rate of laryngeal carcinoma was 13.86% in group HPV and 9.3% in the control group ,with no statistically significant difference between the positive expres-sions of HPV in the laryngeal carcinoma group and control group(P>0.05). The positive rate of laryngeal carci-noma was 63.37% and 13.95%,respectively ,in group EBV ,and the control group ,with significant difference between them(P < 0.05). In respect of the positive rate by comparing differently differentiated EBV in laryngeal carcinoma ,there was no significant difference in the positive expression of EBV in well differentiated and differen-tiated laryngeal carcinoma(P>0.05),but the difference was statistically significant in highly differentiated EBV as compared with those with low differentiation type,medium differentiation and poor differentiation(P < 0.05). There was no significant difference between the groups in view of sex ,age and course of disease in the patients (P > 0.05). Conclusions The incidence of laryngeal carcinoma is closely related with EBV infection ,possibly relationed with HPV and high-risk subtypes of HPV have a certain role in the process of induced laryngeal carcino-ma. The gender ,age and duration of disease have no significant correlation with EBV infection. This study will provide a basis for further invesgitation of pathogenesis of laryngeal cancer and prevention and treatment of larynge-al cancer.

Objective To purify native F1 antigen from E pestis EV76 strain and determine its ef-ficacy against Y. pestis. Methods A new purification method was developed by the substitution of physical disruption ( glass beads) for organic solvent ( acetone and toluene) one, followed by a combination of ammo-nium sulfate fractionation and SephacrylS-200HR column filtration chromatography. Groups of mice were im-munized with F1 antigen adsorbed to 25% aluminum hydroxide in PBS by intramuscular route. The immu-nized animals were challenged subeutaneously(s, c. ) with 104 CFU of Y. pestis strain 141 at 18 weeks after the primary immunization. Results There was no IgG titre difference between two groups of mice with one-dose immunization, whereas in the two-dose immunization groups, the group F1-40 μg induced a statistically higher antibody titre than the group F1-20 μg. Complete protection was observed for animals immunized with purified F1 antigen by s.c. route. In contrast, the control mice immunized with aluminum hydroxide suc-cumbed to a same dose of Y. pestis 141 challenge. Conclusion This purification strategy is a simple and ef-fective, and can be operated in a large scale. Native F1 antigen extracted from Y. pestis EV76 is highly im-munagenic, and can be used as a key antigen component to develop sub-unit vaccine of plague.

Objective To investigate the effect and clinical value of interventional therapy in the treatment of gestational trophoblastic neoplasia(GTN).Methods 28 cases of GTN were selected,of which 18 cases were treated with fluorouracil +dactinomycin(5-Fu+KSM)for 2 courses,however,the level of β-HCG and uterine lesions did not significantly reduced.The remained 10 cases were treated with etoposide+actinomycin-D+ methotrexate+ tetrahydrofolate+ vincristine+ cyclophosphamide(EMA-CO)chemotherapy for 2 courses,Ⅳ degree of myelosuppression and severe gastrointestinal reactions appeared and had to cease the next cycle of treatment. All patients were treated with uterine artery and/or ovarian arterial infusion(cisplatin,etoposide,bleomycin)for 2 courses,meanwhile, the gelatin sponge particles were used for embolization of uterine arteries and/or ovarian arteries.The β-HCG level,tumor volume, and the changes of sex hormones were tested before and one year after interventional therapy.Results 28 patients underwent transcatheter uterine arterial and/or ovarian arterial chemoembolization and embolization,the internal iliac arteriography showed significant tumor staining.20 patients underwent double uterine arterial infusion and embolization,and 8 patients underwent bilateral uterine arterial and unilateral ovarian arterial infusion and embolization.β-HCG and lesion size were measured on the 18th day after intervention.The results showed that the β-HCG decreased significantly after 2 courses of treatment,and the uterine lesion was reduced or disappeared,with a significant statistical difference,however,sex hormone levels did not changed significantly before interventional therapy and during one year follow-up.Conclusion The interventional treatment of GTN is less invasive,effective,and worthy of clinical application.

Objective To summarize prenatal two-dimensional ultrasound examination results of different types of fetal limb deformity,and emphasise on some rare deformity disease such as phocomelia and sirenomelia.To investigate the value of systematic continuous sequence approach in the examination of fetal limb during pregnancy periods.Methods Eighteen thousand seven hundred and eight cases of fetus were selected from September 2014 to August 2016 in the 105th Hospital of Chinese People's Liberation Army,which were screened by routine and systematic ultrasonography.The systematic continuous sequence approach was used to focus on examination of the fetal limb.All fetuses with abnormal limbs were followed up.The ultrasonographic images were compared with the results of pathological examination and X-ray examination to summarize the ultrasonographic features of fetal limb deformities.Results Seventy-six cases of fetal limb deformity were detected by prenatal ultrasotmd system in 18 708 cases.Three cases were detected at 11-13 + 6 weeks of gestation,18 at 14-19 + 6 weeks,38 at 20-27 + 6 weeks,17 at 28-35 + 6 weeks.Types of limb deformities are as fllowing,11 cases of abnormal number of fingers (adactylism,polydactyly,syndactyly),2 cases of cleft hand deformity,45 cases of foot varus,1 case of sirenomelia and 4 cases of short limbs.Thirty-seven cases of fetal limb deformity combined with other system malformations and 12 cases were with multiple system malformations.Karyotypes were abnormal in 11 cases,including 3 cases of trisomy 21,6 cases of trisomy 18 and 3 cases of trisomy 13.One case of prenatal ultrasound diagnosis of twins with sirenomelia.An autopsy of twin fetus indicated that there were epactal toes at the left foot.Prenatal ultrasonography.Conclusions The systematic continuous sequence approach in early and middle pregnancy play the advantages of each pregnancy examination.The fetal limb deformity can be detected early by combining application of systematic continuous sequence approach.

Esophageal squamous cell carcinoma (ESCC) is a deadly malignancy with regard to mortality and prognosis, and the 5-year survival rate for all patients diagnosed with ESCC remains poor. A better understanding of the biological mechanisms of ESCC tumorigenesis and progression is of great importance to improve treatment of this disease. In this study, we demonstrated that the glutathione metabolism pathway is highly enriched in ESCC cells compared with normal esophageal epithelial cells in an in vivo mouse model. In addition, treatment with L-buthionine-sulfoximine (BSO) to deplete glutathione decreased the ESCC tumor burden in mice, thus demonstrating the critical role of glutathione metabolism in ESCC progression. BSO treatment also led to decreased cell proliferation and activation of cell apoptosis in ESCC. Finally, BSO treatment blocked NF-κB pathway activation in ESCC. Our study reveals a new pathway that regulates ESCC progression and suggests that inhibition of glutathione metabolism may be a potential strategy for ESCC treatment.
Animals ; Apoptosis ; Carcinogenesis ; Carcinoma, Squamous Cell ; Cell Proliferation ; Epithelial Cells ; Esophageal Neoplasms* ; Glutathione* ; Humans ; Metabolism* ; Mice ; Mortality ; Prognosis ; Survival Rate ; Tumor Burden