Objective To study the clinical effect of minocycline hydrochlorideointment on the treatment of patients with retrograde pulpitis.Methods From January 2015 to December 2016 in Huzhou central hospital, 90 cases with retrograde pulpitis as the research object were divided into two groups, the control group and the observation group, 45 cases in each group.The control group were received conventional treatment combined with iodine glycerin, and the observation group were given conventional treatment combined with minocycline hydrochloride ointment.The clinical data were compared in the two groups.Results After treatment, plaque index(0.91±0.30), gingival bleeding index(2.11±1.32), explore clinical depth(4.58±1.19)and attachment loss(3.06±1.85)in the observation group were better than the plaque index(1.38±0.49), gingival bleeding index(3.07±1.83),explore clinical depth(4.87±1.49)and attachment loss(5.18±1.39)in the control group, the difference between the two groups was statistically significant(P< 0.05);the clinical effect 95.6% in the observation group was better than 80.0% in the control group(P< 0.05).The adverse reaction rate was 6.7% in the observation group, which was lower than 17.8% in the control group(P< 0.05).Conclusion It that the conventional method combined with minocycline hydrochloride ointment on the treatment of retrograde pulpitis has significant clinical effect, can effectively improve the clinical symptoms of patients, is worthy of clinical application.

AIM: To investigate the effects of angiotensinⅡ receptor type Ⅰ antagonist irbesartan and angiotensin-converting enzyme inhibitor perindopril on the myocardial expression of connexin 43 (CX43), desmin and cardiac troponin T (cTnT) in the pressure overload-induced rat cardiac hypertrophy. METHODS: 40 male adult Sprague-Dawley rats were divided into 5 groups (8 animals for each): sham operation group and other four groups with ventricular hypertrophy caused by banding aortic artery. Drugs were given one week after operation as follows: sham operation group, normal saline (2 mL?kg~-1?d~-1 ig) was given; Operative groups: animals with ventricular hypertrophy were treated with normal saline 2 mL?kg~-1?d~-1 ig; Treatment groups: animals with ventricular hypertrophy were treated with perindopril 2 mg?kg~-1?d~-1 ig, irbesartan 20 mg?kg~-1?d~-1 ig or irbesartan 20 mg?kg~-1?d~-1 ig plus perindopril 2 mg?kg~-1?d~-1 ig, respectively. Left ventricular mass index (LVMI), transverse diameter of myocardial cell (TDM), and myocardial expression of CX43, desmin and cTnT by immunohistochemistry were performed at the end of 8 weeks of drug intervention. RESULTS: LVMI, TDM were remarkably decreased after drug intervention, compared to animals of operative group (P

AIM: To investigate the correlation between renal transforming growth factor-?1 (TGF-?1) expression and cellular apoptosis, and effect of tea polyphenols (TP) on TGF-?1 expression and apoptosis. METHODS: Four group animals in a rat model of CsA-induced chronic nephrotoxicity were respectively treated by vehicle (olive oil, 0.1 mL?kg~(-1)?d~(-1), sc), TP (80 mg?kg~(-1)?d~(-1), ig), CsA (15 mg?kg~(-1)?d~(-1), sc) and TP (80 mg?kg~(-1)?d~(-1), ig) plus CsA (15 mg?kg~(-1)?d~(-1), sc). At the end of 28th day of treatment, renal creatinine clearance and tissue pathology were analyzed. The TGF-?1 expression was detected by immunohistochemistry and Western blotting. TUNEL assay, apoptosis-related enzymatic activity caspase-3 were also detected. RESULTS: Compared to CsA-treated rats, the animals treated with CsA plus TP showed a significant increase in the renal creatinine clearance (0.12?0.03 vs 0.22?0.02,P

Objective To understand the situation of undergraduates' quality of life and analyze the influence factors in order to offer basis for improving personnel training mode of public health department in Wuhan University. Methods Questionnaire survey has been conducted among all undergraduates of public health department in Wuhan University. The questionnaire includes the level of internationalization, compound and practice innovation activities. At the same time, students' quality of life has been investigated using the WHOQOL-BREF. SPSS13.0 has been used to make statistical analysis. Scores between groups has been compared utilizing t test, analysis of variance has been made and influence factors has been ana-lyzed utilizing multiple linear regression. Results The average of the undergraduate graduates' quality of life total score is(3.54±0.77),with a scoring rate of 70.9%. The dimension with the highest scoring rate is social relations, and its scoring rate is 75.1%. The dimension with the lowest scoring rate is environment, with scoring rate 65.9%. Compared with the norm, the scores of the overall quality of life, physical health, social relations and environment are all above the norm(P<0.05). The result of multiple linear regression indicates that female(t=-2.338, P=0.020), students from high income family(t=3.512, P=0.001) and students with a high degree of practice innovation activity participation(t=3.515, P=0.001) have a high quality of life. Conclusion The students' quality of life from school of public health, Wuhan University is slightly higher than the general population. The quality of life is influenced significantly by part of cultivating ways. There is a need which personnel training mode is innovated in order to improve the quality of cultivation.

Two simple and sensitive high performance liquid chromatography–tandem mass spectrometry (HPLC–MS/MS) methods were developed and validated for the determination of fenticonazole in human plasma after percutaneous and intravaginal administration. Mifepristone was used as an internal standard (IS), and simple protein precipitation by acetonitrile containing 2%acetic acid was utilized for extracting the analytes from the plasma samples. Chromatographic separation was performed on a Kinetex XB-C18 column. The quantitation was performed by a mass spectrometer equipped with an electrospray ionization source in multiple reactions monitoring (MRM) positive ion mode using precursor-to-product ion transitions of m/z 455.2–199.1 for fenticonazole and m/z 430.2–372.3 for mifepristone. The validated linear ranges of fenticonazole were 5–1000 pg/mL and 0.1–20 ng/mL in plasma for the methods A and B, respectively. For the two methods, the accuracy data ranged from 85% to 115%, the intra- and inter-batch precision data were less than 15%, the recovery data were more than 90%, and no matrix interference was observed. The methods A and B were successfully validated and applied to the pharmacokinetic studies of fenticonazole gel in Chinese healthy volunteers after percutaneous and intravaginal administration, respectively.

Objective To investigate the feasibility of labeling mice spleen lymphocytes with superparamagnetic iron oxide(SPIO)and in vitro MR imaging of the labeled cells.Methods Spleen lymphocytes of 5 mice were isolated and then labeled with SPIO of 100,50,25,15,10,5 μg/ml,which was previously prepared with PLL.Prussian blue staining was performed to show the intracellular iron.Cell viability was compared among fresh,labeled and unlabeled cells.Different concentrations of mice spleen lymphocytes were screened using 3.0 T MR on T2WI,T2 * WI and SWI sequences in vitro.Cell viability was compared using independent-sample t test between groups.The MRI values among different groups were compared using one-way ANOVA.Results SPIO prepared with PLL could successfully label mice spleen lymphocytes,the optimum concentration of SPIO was 5 μg/ml.The Prussian blue staining showed intracellular blue spots and a labeling efficiency of(93.6 ± 2.1)％.Three groups of fresh,labeled and unlabeled cells showed a Trypan blue staining result of(94.8 ± 3.1)％,(88.7 ± 2.7)％,and(88.9 ±3.2)％,respectively; no statistically significant difference was found in cell viability between labeled and unlabeled lymphocytes(t =0.281,P ＞ 0.05); however,the cell viability of fresh cells were statistically significant higher than the labeled and unlabeled lymphocytes(t =8.125 and 7.253 respectively,P ＜0.05for all).Among the T2 WI,T2 * WI and SWI sequences under the same concentrations of cells,the SWI sequence was the most sensitive.Conclusions The mice spleen lymphocytes can be effectively labeled with SPIO with no impact on cell viability,and MR can be used to track these labeled cells in vitro.The SWI sequence is the most sensitive.

In order to remove the endotoxin from the blood of endotoxemia patients, we prepared a new adsorbent with heparin space arm and polymyxin B (PMB) ligand. The carrier of chloromethyl polystyrene resin was activated and heparin space arm was grafted, and then PMB ligand was immobilized onto adsorbent with glutaraldehyde. We employed in vitro FITC-lipopolysaccharide (FITC-LPS) static adsorption to characterize the adsorption properties on the adsorbent, and conducted in vitro lipopolysaccharide (LPS) static adsorption to measure quantitavely the adsorption capacity and rate, and then evaluated the blood compatibility. The in vitro static adsorption indicated that the adsorbent had the removal rate of LPS above 70% with the adsorption equilibrium time for 2 hours. Blood compatibility experiment showed that the adsorbent had little negative effects on blood cells and plasma protein, and their adsorption rates were less than 10% for hemocytes and 20% for plasma protein respectively. This adsorbent exhibited high selectivity, high adsorption capacity and good biocompatibility, and presented a promising clinical application in the treatment of endotoxemia.
Adsorption ; Endotoxemia ; therapy ; Endotoxins ; isolation & purification ; Hemofiltration ; instrumentation ; methods ; Heparin ; chemistry ; Humans ; Ion Exchange Resins ; chemistry ; Ligands ; Polymyxin B ; chemistry ; Sorption Detoxification ; methods

Objective:To systematically evaluate the clinical efficacy of laparoscopic common bile duct exploration (LCBDE) combined with endoscopic nasobiliary drainage (ENBD) versus T-tube drainage in the treatment of choledocholithiasis.Methods:Databases including PubMed(Medline), Embase, the Cochrane Library, Web of Science, Wanfang, CNKI and CBM were searched for literatures from January 1960 to May 2019 with the key words including "胆总管结石病,胆总管结石; T管引流, T管;鼻胆管引流,经内镜鼻胆管引流术, ENBD管, ENBD引流; cholelithiasis, common bile duct stone, jaundice, obstructive, Jaundice, gallstone; T-tube drainage, T-tube, t-tube, biliary tract drainge, drainge tube; endoscopic nasobiliary drainage, nasobiliary drainage, nasobiliary tube, endoscopic drainage tubes, endoscopic drainage tube, endoscopic retrograde biliary drainage" . The randomized controlled trials (RCTs) and high quality non-randomized controlled trials (NRCTs) on comparing ENBD and T-tube drainage during laparoscopic choledocholithotomy were included.Patients who received LCBDE combined with preoperative or intraoperative ENBD were allocated into ENBD group, and patients who received LCBDE combined with postoperative T-tube drainage were allocated into T-tube drainage group. Reported outcomes: operation time, volume of intraoperative blood loss, duration of postoperative hospital stay, time to drainage tube removal, time to postoperative gastrointestinal function recovery, treatment expenses, rate of surgical failure, incidence of postoperative biliary fistula, incidence of postoperative incisional infection, incidence of postoperative residual stones, incidence of postoperative pancreatitis, incidence of postoperative hyperamylasemia, incidence of postoperative bile peritonitis. Count data were represented as odds ratio ( OR) and 95% confidence interval (95% CI). Measurement data were represented as mean difference ( MD) and 95% CI. The I2 and Q tests were used to analyze literature heterogeneity. I2≤50% or P>0.10 indicated no significant heterogeneity, so fixed effects model was used for Meta analysis. I2>50% and P≤0.10 indicated a significant heterogeneity, so random effects model was used for Meta analysis. When analyzing the measurement data, subgroup analysis of individual indicators was performed if there were more than 4 RCTs included, and NRCTs were analyzed for supplement if there were no more than 4 RCTs included. When analyzing the count data, RCTs and NRCTs were combined for analysis. Funnel plots were used to test potential publication bias if there were more than or equal to 10 studies included, while no test was needed if there were less than 10 studies included. Results:(1) Document retrival: 26 literatures meeting the standards were included, including 9 RCTs and 17 NRCTs (4 semi-randomized studies and 13 case-control studies). There were 2 098 patients, including 1 114 patients in the ENBD group and 984 patients in the T-tube drainage group. (2) Results of Meta analysis. ① Duration of postoperative hospital stay: there was a significant difference in the duration of postoperative hospital stay between the ENBD group and T-tube drainage group ( MD=-6.53, 95% CI: -8.64 to -4.43, P<0.05). Further analysis of 9 RCTs showed significant differences in the duration of postoperative hospital stay between patients without acute complications of choledocholithiasis in the ENBD group and those in the T-tube drainage group, between patients with acute complications of choledocholithiasis in the ENBD group and T-tube drainage group, respectively ( MD=-5.88, -8.77, 95% CI: -8.32 to -3.45, -12.39 to -5.15, P<0.05). ② Time to drainage tube removal: for the RCTs, there was a significant difference in the time to drainage tube removal between the ENBD group and T-tube drainage group ( MD=-46.01, 95% CI: -83.64 to -8.37, P<0.05). For the NRCTs, there was a significant difference in the time to drainage tube removal between the ENBD group and T-tube drainage group ( MD=-24.05, 95% CI: -32.93 to -15.18, P<0.05). ③ Time to postoperative gastrointestinal function recovery: for the RCTs, there was a significant difference in the time to postoperative gastrointestinal function recovery between the ENBD group and T-tube drainage group ( MD=17.80, 95% CI: -31.11 to -4.48, P<0.05). For the NRCTs, there was a significant difference in the time to drainage tube removal between the ENBD group and T-tube drainage group ( MD=-5.64, 95% CI: -10.16 to -1.12, P<0.05). ④ Incidence of postoperative biliary fistula: there was a significant difference in the incidence of postoperative biliary fistula between the ENBD group and T-tube drainage group ( OR=0.50, 95% CI: 0.28-0.89, P<0.05). ⑤ Incidence of postoperative incisional infection: there was a significant difference in the incidence of postoperative incisional infection between the ENBD group and T-tube drainage group ( OR=0.35, 95% CI: 0.17-0.73, P<0.05). (3) Analysis of publication bias. The incidence of postoperative biliary fistula in the two groups was analyzed by funnel plot based on the 15 studies. The bilateral symmetry was presented in the funnel plot for incidence of postoperative biliary fistula, suggesting that publication bias had little influence on results of Meta analysis. Conclusion:For patients with choledocholithiasis that endoscopic lithotomy is not feasible, LCBDE combined with ENBD can significantly shorten duration of postoperative hospital stay, time to drainage tube removal, postoperative gastrointestinal function recovery time, reduce the incidence of postoperative biliary fistula and incisional infection compared with LCBDE combined with T-tube drainage.

Objective To observe the image characteristics of OCT in patients of acquired immunodeficiency syndrome (AIDS) with cytomegalovirus retinitis (CMVR).Methods Thirty-nine eyes of 26 patients of AIDS with CMVR diagnosed in Department of ophthalmology of Beijing Ditan Hospital Capital Medical University from January 2015 to December 2017 were included in this study.All the patients were males,with the mean age of 33.12± 9.87 years.All the patients underwent the OCT examination by Spectralis HRA+OCT.The locations of scanning were macular,optical papilla and posterior pole of retina with retinitis.Typical images were saved and analyzed.Results The OCT pathological changes of CMVR included increase of retinal thickness and reflex of retina,indiscernible retinal layers,irregularity or absent external limiting membrane and/or ellipsoid zone,hyperreflective spots,vitreous cells.Among 39 eyes,there were 6 eyes with strong point-like reflection in the outer layer of retina around the lesion,31 eyes (79.49％) with strong point-like reflection in the full layer of retina,25 eyes (64.10％) with lesion involved macular area,34 eyes (87.17％) with vitreous cells.Conclusions OCT images of the eyes with AIDS with CMVR were characterized by lesions involving the whole retina.Absent ellipsoid zone or structural changes can be seen in the affected areas and peripheral areas of the lesion.

Objective:To investigate the demand and practical utility of simulation operations specialists (SOS) in simulation teaching modules during the standardized residency training.Methods:Based on the feedback for stimulated courses of standardized residency training, subjective evaluation of all residents, teachers and SOS who participated in simulation courses in 2017-2018 academic year were investigated and studied via the mobile phone online investigation. At the same time, the design data of teaching concept map of relevant curriculum were also included. The SPSS 13.0 was used to conduct the t test and chi-square test. Results:At present, only 26.3% of the preset functions were used in the medical simulation courses based on high-tech medical simulator. Tutors commanded less than 30% functions, while SOS participated in the whole process of the course preparation and commanded 63.6% of the course operations, which was higher than the requirement of teaching concept map (45.5%). Among them, ECG monitoring regulation, venous management and special effects makeup were in greatest needs and were items with the biggest gap between ideality and reality. Resident physicians required SOS to replace the tutors to operate teaching facilities, so as to reduce interruption (37.0%), implications (31.3%) during courses, and improvement of experience sense during the course (32.3%). Furthermore, specialists with clinical background needed more assistance from SOS than those without clinical background ( tQ3=3.204, tQ4=2.573, tQ5=2.660; P<0.05). Differences were found between the actual work content of SOS and their job requirement ( χ2=12.632, P<0.01). Conclusion:SOS plays a significant role in the simulation course of standardized residency training, especially in the course of clinical professional physicians. Auxiliary functions of simulated courses, such as teaching aids management, special effects makeup, course designing, qualified SP and others are the main necessities for SOS at present. Participation of tutors and SOS together is essential to ensure a good development and performance of medical simulation courses for standardized residency training.