The prevalence rate of nonalcoholic fatty liver disease (NAFLD) has been increasing year by year.However,since the complex pathogenesis of NAFLD has not been fully clarified,there still lacks a gold standard for the diagnosis and treatment of NAFLD.5-Hydroxytryptamine (5-HT) can affect the development and progression of NAFLD via several links and thus change the course of NAFLD.This article introduces the association between 5-HT and NAFLD,the role of 5-HT in the pathogenesis of NAFLD,and its future application in treatment.

Objective To observe the nursing effect of closed needle-free style injection connector in endoscopic nasobiliary drainage (ERCP). Methods From June 2013 to June 2014, 400 patients of the common bile duct stones underwent ERCP technique and placed nasobiliary were divided into two groups according to chronological. Between June 1st, 2013 and December 20th, 200 patients were set as control group, between December 21th, 2013 and June 30, 2014, 200 patients were set as experimental group. For the control group, the nasobiliary duct was directedly connected to the disposable drainage bag. For the experimental group, the nasobiliary duct was connected to closed needle-free style injection connector, and then to the drainage bag. The incidences of the detached connection, the fracture of the connection with the nasobiliary duct, bile leakage from the connection, and post-ERCP infection were compared between two groups. Results The incidence of bile leakage, crack pipes, separation and postoperative infection occurred at the junction nasobiliary rates in the experimental group were 0,0,0,2%(4/200), which were far lower than 35% (70/200),11% (22/200), 6% (12/200), 6%(12/200) of the control group. The difference was statistically significant (χ2=31.75~169.60, P < 0.01). Conclusions The application of closed needle-free style injection connector can effectively avoid the detachment and fracture of the connection, the occurrence of bile leakage, and post-ERCP infection. This will be helpful to decrease the burden of nursing care and increase patients′satisficationdegree.

Objective To determine the predictive value of fetal fibronectin (fFN) alone or combined with cervical length (CD for preterm birth in pregnant women with preterm labor. Methods Pregnant women were collected from three hospitals. fFN level in discharges from the posterior fornix and the CL under vaginal ultrasound scan were measured for all subjects who presented with preterm labor between 24-34+6 gestational weeks with intact membranes, cervical dilation

Objective:To explore the efficacy and safety of ornidazole in the treatment of trichomonal vaginitis. Methods:Totally 112 cases of trichomonal vaginitis from February 2011 to December 2012 in our hospital were selected and randomly divided into the ob-servation group and the control group with 56 cases in each. The control group was treated with metronidazole tablets 200mg, po,tid, and the observation group was treated with ornidazole tablets 500mg, po,bid. The treatment course was 7 days. The clinical effect, score of clinical symptoms and incidence of adverse reactions of the two groups were compared. Results:The total effective rate of the observation group was 96. 4%, which was higher than that of the control group (82. 1%), and the difference was statistically signifi-cant (P<0. 05). The symptom scores of the two groups were significantly improved after the treatment (P<0. 05), however, the score between the two groups showed no significant difference (P>0. 05). The incidence rate of adverse reactions in the observation group was 10. 71%, which was significantly lower than that in the control group (37. 5%), and the difference was statistically signifi-cant (P<0. 05). Conclusion:The clinical curative effect of ornidazole in the treatment of trichomonal vaginitis is notable with faster onset, shorter treatment course, lower adverse reaction rate and better patient tolerance,which is valuable in the clinical promotion.

Objective:To establish the mouse model of retinal neovascularization. Methods:Twenty neonatal C57BL/6J mice were divided into two groups randomly.The treated group was exposed to 75% oxygen for 5 days and then to room air.All animals were sacrificed at postnatal day 17 and both eyes were enucleated.Endothelial cell nuclei extending into the internal limiting membrane were counted via HE stain and the expression of vascular endothelial growth factor(VEGF) was detected via immunohistochemical stain. Results:On average,25.70?4.90 endothelial cell nuclei were seen in the treated group and 0.85?1.02 in the control group.The difference was statistically significant(P

Objective To investigate the effects of safflor yellow (SY) injection on acute lung injury (ALI) rats induced by oleic acid (OA) and its potential mechanism. Methods Wistar rats were randomly divided into six groups,including control group,OA group,OA+10 mg/kg anisodamine group,OA+8 mg/kg SY group,OA+16 mg/kg SY group,and OA+32 mg/kg SY group. Normal saline or anisodamine or SY were pretreated before 0.18 g/kg OA iv injection. The arterial partial pressure of oxygen,the pulmonary water content index,and MPO activity in lung tissue were determined; The mRNA level of TNF-?,IL-1?,IL-6,ICAM-1,and VCAM-1 were measured by RT-PCR; And NF-?B p65 protein in nucleus observed by immunohistochemical technology,while the level of p38 MAPK protein phosphorylation in lung tissue was analyzed by Western blotting. Results The arterial partial pressure of oxygen in all SY groups was higher than that in OA group,while the pulmonary water content index and MPO activity were lower than those in OA group,as well as the mRNA level of the above inflammatory cytokines and the NF-?B p65 in nucleus and level of p38 MAPK phosphorylation. Conclusion SY could alleviate the lung tissue edema,increase the arterial partial pressure of oxygen,and depress MPO activity in ALI rat induced by OA. The SY mechanism of attenuating the acute lung injury may be associated with inhibiting the p38 phosphorylation and NF-?B activation and reducing inflammatory factors expression.

Objective To investigate the clinical effect of McDonald cervical cerclage and the affecting factors. Methods Between January 2002 to December 2013 in Peking University First Hospital we performed McDonald cervical cerclage for 116 single pregnant women. They were defined as the successful group who deliveried the live babies after 28 weeks after the cerclage and the failure group who deliveried in the second trimester. According to the surgical indications they were divided into preventive cerclage group and therapeutic cerclage group. Then we analyzed the curative effect and the affecting factors in the groups. Results (1) In the 116 cases, 12 cases (10.3%) failed, and 104 cases (89.7%) succeeded. In the successful group, 37 cases (35.6%,37/104) deliveried pretermly and 67 cases (64.4%) deliveried termly. And there were 56 cases of vaginal delivery (53.8%), and 48 cases (46.2%) of cesarean section. (2) Among the 116 cases, 48 cases (41.4%) were included in prophylactic cerclage group, the gestational age was (16.3± 2.2) weeks, 68 (58.6%) cases were included in therapeutic group, the gestational age was (24.0±2.2) weeks. The operation time was (22±9) minutes in preventive group and (24±13) minutes in therapeutic group,there was no statistical difference between the two groups (P>0.05). Live-birth rate between preventive cerclage group and therapeutic cerclage group was no statistically significant difference (P>0.05). The term birth rate (72.9%, 35/48) in preventive group was higher than that in therapeutic group (47.1%, 32/68), the difference was statistically significant (P<0.01). Neonatal hospitalization rate was lower in preventive group (14.6%, 7/48) than therapeutic group (36.8%, 25/68) , the difference was statistically significant (P< 0.01). (3) In the failure group placental pathology was examed in 7 cases. The placental tissue showed a large number of neutrophils infiltrating in 6 cases (6/7). In the successful group, 27 pregnant women deliveried between 28 to 33+6 weeks (26.0%,27/104), 10 pregnant women deliveried between 34 to 36+6 weeks 10 cases (9.6%, 10/104), 67 cases deliveried after 37 weeks (64.4%, 67/104). A lot of factors including maternal age, the previous cervix operation history, perioperative application of progesterone, operation time and preoperative invasive procedure were compared between the successful group and the failure group. Only maternal age and preoperative invasive proedcure were statistically significant (P<0.05) and the others had no statistical significance (P>0.05). (4) There were 68 cases in the therapeutic group, 7 cases failed, and 61 cases succeeded;the preoperative cervical os in failure group [ (21 ± 20) mm] was wider than that in successful group [(14±5) mm], the difference was statistically significant (P<0.05);and preoperative vaginal ultrasound measurement of cervical canal length were (18 ± 8) mm versus (19 ± 10) mm, there was no statistically significant difference (P>0.05). Conclusions The McDonald cervical cerclage for cervical incompetence is a simple, safe and high successful rate of intervention measures. The term labor rate of prophylactic cervical cerclage was higher than that of the therapeutic cerclage. Older maternal age and preoperative invasive procedure may be the risk factors for cerclage. The infection may play an important factor leading to the failure of McDonald cervical cerclage.

Objective To design a kind of aseptic drainage device with safe practice and accurate measurement for clinical nurses. Methods The experiment group included 63 cases using drainage device with accurate measurement,and control group included 63 cases using disposal drainage bag with scale of visual measurement.The accuracy of drainage liquid measurement was compared between two groups,and bacterial culture was made for the drainage liquid of two groups.Results The measurement error of experiment group and control group was(3.31±1.8)mL and(56.0±5.8)mL,respectively.The difference was significant(t=-4.593,P<0.01).The bacterial culture results showed no obvious difference between two groups(positive rate were 15.9%vs 17.5%,χ2=0.057,P>0.05). Conclusion The accurately measured aseptic drainage device is convenient for nurses to practice in clinics,and its application can reduce workload of nurses and decrease the occurrence of pollution.

Objective To establish a flowcytometry method for detecting phagocysis of Mycobacterium tuberculosis(Mth) by the human peripheral blood neutrophils( PMNs), and to explore the effects of Thl and Th2 cytokine on phagocytotic activity of PMNs. Methods By using acid-fast staining the phagocytosis of Mtb by human neutrophil was observed by microscopy, and the phagocytosis of FTTC labeled Mtb by human neutrophils was detected under confocal microscope. The whole fresh peripheral blood of healthy adults was incubated with FTTC labeled Mtb and the phagocytosis were measured by flow cytometry. The altered phagocytosis of FTTC-Mtb by neutrophils pretreated with IL-2, IFN-γ, GM-CSF or IL-4 were measured. Results Human peripheral blood neutrophils activity of Mtb phagocytosis was observed by acid-fast staining and confocal microscope. The percentage of phagocytosis of Mtb was dependent on the time of incubation with Mtb. The percentages were 47% at 5 min and reached plateau about 66% ～72% at 15 min to 20 min.Pretreatment with different concentrations of IL-2 or IFN-γincreased the phagocytosis of Mtb by 76.7% and 75.2%, respectively; but pretreatment with IL-4 decreased the phagocytosis by 31.7%. Conclusion IL-2and IFN-γcan increase phagocytosis of Mth by neutrophils; while IL-4 can reduced neutrophil activity of phagocytosis of Mtb by human neutrophils, and demonstrate that Th1/Th2 type cytokins involve in regulating the acitvities of neutrophils anti-Mtb infection.

Objective To study the antitumor components from an actinomycete strain(N2010-37)of bottom mud in Zhanjiang Mangrove,South China Sea.Methods The components were isolated and purified by chromatographic techniques and recrystallization,and the structures were identified by spectral methods together with physicochemical analyses.The antitumor effects of these components were tested in vitro by MTT method.Results Three compounds were identified including two anthrones and one novel lactone.They are(3S,4R,7R,8R,9S)-3,8-dihydroxy-4,7,9-trimethyl-2,6-cyclononanediolacetone(1),2-hydroxy-l-methoxy-3-methylanthraquinone(2),and 1,6,8-thihydroxy-3-methyl-anthraquinone(3).Conclusion Compound 1 is a new compound,and compounds 1 and 3 show the favorablecytotoxic activities against human chronic granulocytic leukemia cell line K562 strain by MTT method in vitro.