Objective To evaluate the effect of remifentanil pretreatment on myoclonus after etomidate injection.Methods Sixty patients undergoing scheduled for intestinal endoscopy under general anesthesia were divided into remifentanil group and control group by random digits table method with 30 cases each.Before 0.3 mg/kg etomidate was given,the patients in remifentanil group and control group were pretreated with remifentanil 0.5 μ g/kg or amount of 0.9％ sodium chloride.Myoclonus was observed and recorded.Nausea,pruritis and apnea were observed after procedures.Results The incidence of myoclonus was 73.3％(22/30) in control group,mild in 11 cases,moderate in 10 cases and severe in 1 case.The incidence of myoclonus was 6.7％(2/30) in remifentanil group and mild in 2 cases.There was significant difference in the incidence of myoclonus between two groups (P ＜ 0.01).In control group,the ratio of myoclonus was 14/16 in males and 8/14 in females.In remifentanil group,male and female each had 1 case of myoclonus.There was no nausea,pruritis and apnea in remifentanil group.Conclusion Pretreatment with 0.5 μ g/kg remifentanil reduces myoclonus after etomidate injection,male patients are more associated with the incidence of myoclonus than female patients.

Objective To investigate the effect of ropivacaine combined with dexanmethasone sprayed intratracheally in patients with resistant tubes and postoperative sore throat.Methods Eighty patients ASA Ⅰ-Ⅱ grade undergoing laparoscopic cholecystectomy were randomly divided into four groups by random digits tabel method,20 patients in each.2 ml of 0.75％ ropivacaine combined with 1 ml dexamethasone (group A) ; 2 ml of 0.75％ ropivacaine combined with 1 ml 0.9％ sodium (group B) ; 3 ml of 1％ tetracaine (group C); 3 ml of 0.9％ sodium (group D) were immediately intratracheal sprayed before intubation.The resistant tubes and degree of postoperative 24 h sore throat [by visual analog scale (VAS) scores],comfort [by Bruggrmann comfort scale (BCS) scores] and the incidence of sore throat were recorded.Results The resistant tubes appraised rate in group A,B and C was higher than that in group D [65.0％ (13/20),60.0％ (12/20),70.0％ (14/20) vs.5.0％ (1/20)] (P ＜ 0.05),but there was no significant difference among group A,B and C (P＞ 0.05).The incidence of sore throat at 24 h after surgery in group A,B and C was lower than that in group D [20.0％(4/20),25.0％ (5/20),25.0％ (5/20) vs.90.0％ (18/20)] (P ＜ 0.05),but there was no significant difference among group A,B and C (P＞ 0.05).The VAS and BCS scores in group A were better than those in group B,C and D [(0.52 ± 1.14) scores vs.(1.68 ± 1.42),(1.59 ± 1.33),(4.22 ± 1.95) scores,(2.80 ± 1.54) scores vs.(1.60 ± 1.19),(1.80 ± 1.20) and (0.45 ± 0.81) scores] (P ＜ 0.05),but there were no significant differences between group B and group C (P ＞ 0.05).Conclusion Ropivacaine combined with dexamethasone sprayedintratracheally can significantly increase the degree of postoperative resistant tubes,decrease the rate of sore throat after general anesthesia,and increase patient' s comfort.

Objective To investigate the effects of HMME mediated photodynamic therapy (PDT) on apoptosis of murine hepatoma cell line MM45T-Li.MethodsThe photodynamic treatment on MM45T-Li cells was performed in vitro using HMME as photosensitizer and 630 nm laser as light source.The ceils were incubated with HMME of 2.5,5,10 and 20 μg/ml for 4 h respectively,and then irradiated with laser at different dosages.The dark toxicity of HMME and the activity of cells after PDT were evaluated by MTT assay.The effect of PDT on apoptosis were observed by Hoechst fluorescent staining analysis.ResultsMTT assay showed that there were no significant effects on cell growth in each concentration group of HMME when the cells were not exposed to light.The inhibition ratio of cells increased with laser dosage at HMME concentration of 10 and 20 μg/ml.Chromatin condensation,nuclear pyknosis and karyorrhexis were observed after PDT by Hoechst fluorescent staining analysis.The apoptosis rate increased in groups of 5.4 J/cm2 and 7.2 J/cm2 compared with that of control (P＜0.05).Conclusion HMME mediated PDT can efficiently induce the apoptosis of MM45T-Li cells.

Objective: To evaluate the impact of anemia on prognosis of elder patients with acute coronary syndrome (ACS) after percutaneous coronary intervention (PCI).
Methods: A total of 908 consecutive ACS patients elder than 60 years of age with PCI in our hospital from 2010-06 to 2012-06 were studied. According to WHO deifnition of anemia (HB<12.0 g/dL in female and HB<13.0 g/dL in male), the patients were classiifed as Anemia group, n=283 and Non-anemia group, n=625. The patients were followed-up for 1 year. The basic clinical characteristics, incidences of mortality and major adverse cardiovascular and cerebravascular events (MACCE) were compared between 2 groups by cardiac death, myocardial re-infarction, worsening of cardiac function, target vessel revascularization, cerebral hemorrhage and cerebral infarction.
Results: There were 31%of patients suffering from anemia. Anemia group had more patients with the elder age, female gender, diabetes, hypertension, chronic kidney disease, decreased LVEF, more patients with 3 vessel-disease, and higher mortality at 1 year after PCI, higher rate of MACCE than those in Non-anemia group, all P<0.05. Multiple regression analysis indicated that anemia is the independent predictor for mortality in elder ACS patients at 1 year after PCI, P<0.05.
Conclusion: Anemia may increase the incidences of mortality and MACCE in elder ACS patients after PCI for a long-term.

Objective To understand the current status,type,and effect of training programs conducted by Health Bureau and CDC in China.Methods One person of each province was selected from China field epidemiology training network and designated as contact person who was responsible for collecting information of field practical training lasting for at least 6 months for staff of public health emergency and infectious disease control in each province from October 2001 to October 2010.Questionnaire including basic condition,organization and management,training design,faculty condition,trainee condition and training outputs was designed and filled in by contact person.Results There were 35 training programs covering over 9 provinces in China.The first province and city FETP started in 2004,including Guangdong FETP,Zhejiang FETP,Hangzhou FETP,Ningbo FETP and Guizhou FETP.Thirty-five training programs had 355 mentors,22(6％)were CFETP graduates and 57 (16％)were local FETP graduates.All program funds were paid by local governments.The training programs included two parts,theoretical lectures and field practice,which occupying 10％-20％ and 80％-90％ of the whole training time,respectively.Among 6 evaluative items including emergency investigation,surveillance analysis,surveillance evaluation,planned investigation,investigation report and paper publication,most programs(50％-94％) had less than average one person per time.Conclusions Field epidemiology training program after several years of development in china achieves the certain scale.Some provincial programs are successful,but the effect and quality of training programs in different areas are uneven.We suggest optimizing of field epidemiology training resources and further expanding China field epidemiology training network.

Objective To understand the effect of anti-cysticercus therapy for patients with cerebral cysticercosis and the changes of cysticercus on CT image after treatment. Methods The patients with cerebral cysticercosis were classified by the presentation of their brain CT image before treatment, then the effect of anti-cysticercus therapy on them after treatment was analyzed and the presentations of their brain CT images between before and after treatment were compared. Results There were different changes on CT image of cysticercus in brain tissues after anti-cysticercus therapy for different types of patients with cerebral cysticercosis. Type Ⅰ: the focus was absorbed completely after treatment in the majority of patients and calcificated in the minority. Almost all the patients were cured clinically after anticysticercus therapy. Type Ⅱ: the focus was absorbed completely in the minority, and one to two or more calcification dots were observed in the majority of patients. Anti-cysticercus therapy was effective. Type Ⅲ and Ⅳ: the absorption of focus was not very good and the effect of anti-cysticercus therapy was lower relatively. Conclusion The changes of CT image such as absorption, calcification, has important significance in forecasting prognosis and instructing clinical usage.

Objective: To analyze the risk factors for lung cancer and to provide scientific evidence for prevention of lung cancer. Methods: A total of 461 newly diagnosed patients with primary lung cancer from January 2015 to June 2017 in Shaoxing were selected as the case group. Six hundred healthy residents with the same residence,distribution of gender and age as the cases were selected as the control group by frequency matching method. A questionnaire survey was conducted to collect demographic characteristics,family history of major chronic diseases,disease history and behavioral factors. The method of case-control study and multivariate logistic regression model were used for statistical analysis of the risk factors for lung cancer. Results: The results of multivariate logistic regression analysis showed that after adjusting for age and gender,family history of cancer（OR=6.606,95%CI：3.439-12.689）,history of lung diseases（OR=2.836,95%CI：1.208-6.659）,high level of stress（OR=2.485,95%CI：1.830-3.376）,low consumption of fresh vegetables（OR=3.116,95%CI：2.470-3.930）and smoking（OR=6.029,95%CI：3.716-9.783）were risk factors for lung cancer;after adjusting for age,gender,family history of cancer,history of lung diseases,stress levels and consumption of fresh vegetables,quitting smoking for less than ten years was a risk factor for lung cancer（OR=4.751,95%CI：2.404-9.386）compared with quitting smoking for ten years or above. Conclusion Family history of cancer,history of lung diseases,high level of stress,low consumption of fresh vegetables and smoking were risk factors for lung cancer.

Abstract: Objective To construct a shuttle vector pHT315-AaCPR100A with two spore-producing-dependent promoters and the target gene AaCPR100A in Escherichia coli-Bacillus thuringiensis. Methods The forward promoter of Cry3A, named Pro-1 (+), was amplified by PCR using pSVP27A plasmid as the template, and the target gene AaCPR100A was amplified using Aedes aegypti RNA reverse conversion cDNA as the template. The plasmid pHT315 was linearized by digestion with Hind Ⅲ and Sal Ⅰ. The forward promoter and the target gene were inserted into the linearized vector pHT315 successively by in-fusion cloning according to the transcription direction. The synthesized plasmid containing the Cry3A reverse promoter sequence was used as the template, and the Pro-1 (-) reverse promoter was amplified by PCR. The intermediate vector containing the forward promoter and the target gene was linearized by EcoR I restriction enzyme, and the reverse promoter was inserted downstream of the target gene by in-fusion cloning in the direction of transcription. Results By agarose gel electrophoresis, the forward promoter, target gene AaCPR100A and reverse promoter bands were clear and of good quality, which could be used for in-fusion cloning experiments. The two spore-producing-dependent promoters and target gene fragments were connected by In-fusion cloning. The recombinant vector pHT315-AaCPR100A was verified by PCR. The forward promoter, target gene fragment and reverse promoter were successfully amplified in the recombinant vector. Nucleotide sequencing verified that the sequencing results of the bidirectional promoter sequence and the target gene sequence were basically consistent with the sequence alignment results, which met the requirements of the construction of vector elements and proved that the recombinant vector was successfully constructed. Conclusions Based on the above results, this study proves that the recombinant shuttle vector with two spore-producing-dependent promoters can be successfully constructed by in-fusion cloning technology, laying the foundation for the construction of engineered Bacillus thuringiensis expressing dsRNA of AaCPR100A.

In order to obtain a more stable PEGylated interferon alpha-2b, and prolong its half life, interferon alpha-2b (IFN alpha-2b) was modified with monomethoxy polyethylene glycol propionaldehyde (mPEG-ALD) 20000. It was found that the optimized reaction condition for the maximum bioactivity and highest PEGylation degree of the mono PEGylated interferon alpha-2b was as follows: in 20 mmol/L, pH 6.5, citric acid and sodium dihydrogen phosphate buffer, the concentration of IFN alpha-2b was 4 mg/mL, and the molar ratio of PEG/IFN alpha-2b was 8:1, and the reaction time was 20 h at 4 degrees C. Under the optimized reaction condition, the mono PEGylation degree reached to 55%. Ion exchange chromatography was used to separate and purify mono PEGylated interferon alpha-2b from the reaction mixture. The purity of mono PEGylated interferon alpha-2b was higher than 97% characterized by HPLC. The bioactivity of the mono PEGylated interferon alpha-2b was 13.4% of the native IFN alpha-2b, while its half life in SD rat is much longer than the native IFN alpha-2b. The mono PEGylated interferon alpha-2b is also stable in aqueous.
Animals ; Antiviral Agents ; chemistry ; pharmacokinetics ; Drug Stability ; Humans ; Interferon-alpha ; chemistry ; pharmacokinetics ; Polyethylene Glycols ; chemistry ; Rats ; Rats, Sprague-Dawley ; Recombinant Proteins

BACKGROUND AND OBJECTIVES: Previous studies have shown that integrins alpha5beta1 (ITGA5B1) gene-modified rat bone marrow mesenchymal stem cells (rBMSCs) could prevent cell anoikis and increase the nitric oxide (NO) production. Here we examined the capability of rBMSCs/ITGA5B1 on the phenotype modulation of Human Pulmonary Artery Smooth Muscle Cell (HPASMC) in vitro. METHODS AND RESULTS: The synthetic (dedifferentiated) phenotype of HPASMC was induced by monocrotaline (MCT, 1μM) for 24 h and then co-cultured with rBMSCs/ITGA5B1 in a transwell culture system. The activation of NO/cGMP (nitric oxide/Guanosine-3′, 5′-cyclic monophosphate) signaling was investigated in HPASMC. The changes of pro-inflammatory factors, oxidative stress, vasodilator, vasoconstrictor, contractile and synthetic genes, and the morphological changes of HPASMC were investigated. The results of this study showed that the NO/cGMP signal, endothelial nitric oxide synthase (eNOS) expression, the expression of the vasoprotective genes heme oxygenase-1 (HMOX1) and prostaglandin-endoperoxide synthase 2 (PTGS2) were increased, but the expression of transforming growth factor-β1 (TGF-β1), CCAAT/enhancer-binding proteins delta (Cebpd), Krüppel-like factor 4 (KLF4), and activating transcription factor 4 (ATF4) were reduced in MCT treated HPASMC co-cultured with rBMSCs/ITGA5B1. The synthetic smooth muscle cells (SMCs) phenotype markers thrombospondin-1, epiregulin and the vasoconstrictor endothelin (ET)-1, thromboxane A2 receptor (TbxA2R) were down-regulated, whereas the contractile SMCs phenotype marker transgelin expression was up-regulated by rBMSCs/ITGA5B1. Furthermore, rBMSCs/ITGA5B1 promoted the morphological restoration from synthetic (dedifferentiation) to contractile (differentiation) phenotype in MCT treated HPASMC. CONCLUSIONS: rBMSCs/ITGA5B1 could inhibit inflammation and oxidative stress related genes to promote the HPASMC cell differentiation by activation NO/cGMP signal.
Activating Transcription Factor 4 ; Animals ; Anoikis ; Bone Marrow ; Cell Differentiation ; Endothelins ; Epiregulin ; Genes, Synthetic ; Heme Oxygenase-1 ; Humans ; In Vitro Techniques ; Inflammation ; Integrins ; Mesenchymal Stromal Cells ; Monocrotaline ; Muscle, Smooth, Vascular ; Myocytes, Smooth Muscle ; Nitric Oxide Synthase Type III ; Nitric Oxide ; Oxidative Stress ; Phenotype ; Prostaglandin-Endoperoxide Synthases ; Pulmonary Artery ; Rats ; Receptors, Thromboxane A2, Prostaglandin H2