AIM:To evaluate the clinical efficacy and safety of balloon dilatation in infants with lacrimal passage obstruction.METHODS:Totally 86 patients (116 eyes) with lacrimal duct obstruction from July 1, 2015 to June 30, 2016 were randomly divided into two groups according to the digital table.The observation group (43 cases, 60 eyes) were operated with balloon dilatation and the control group (43 cases, 56 eyes) were treated with duct exploratory operation.The patients were followed up for 6mo to compare the efficacy.RESULTS:At the 6mo postoperatively, the primary cure rate and total cure rate in the observation group were significantly higher than those in the control group.There was significant difference between the two groups (P<0.05).CONCLUSION:Balloon dilatation operation is safe, and its clinical efficacy is better than lacrimal duct exploratory operation, is an effective way to treat lacrimal duct obstruction in infants.

Aim To study the role of ubiquitin carboxyl terminal hydrolase L1 (UCH-L1)involved in the pro-tective effect of fluoxetine against monocrotaline-in-duced pulmonary arterial hypertension in rats.Meth-ods Monocrotaline (60 mg·kg -1 )was used to es-tablish pulmonary arterial hypertension in rats and low-dose (2 mg·kg -1 ·d -1 )or high-dose (10 mg·kg -1 ·d -1 )fluoxetine was applied to inhibit pulmonary ar-terial hypertension.The hemodynamics,morphology of pulmonary arterioles and lungs,UCH-L1 protein ex-pression and nuclear factor-κB (NF-κB)nuclear trans-location were observed.Results Monocrotaline not only increased pulmonary arterial pressure and promo-ted pulmonary arterial remodelling and lung inflamma-tion,but also down-regulated UCH-L1 protein expres-sion and increased NF-κB activity in lungs.Fluoxetine inhibited these changes in a dose-dependent manner. However,UCH-L1 protein expression of pulmonary ar-teries did not significantly change among different groups.Conclusion Fluoxetine inhibits monocrotal-ine-induced lung inflammation in rats,involved in NF-κB activity inhibited by up-regulated UCH-L1 protein expression.

Objective To investigate the effect of conventional preseratives on the stability of carboxyhemoglobin(HbCO)in the stored blood samples.Methods Blood samples with 30%～40% and 60%～70% of HbCO were established,respectiviely.The samples were stored with the commomly used preseratives including formaldehyde,sodium fluoride,EDTA-Na_2,sodium nitrite,potassium oxalate,heparin sodium,sodium citrate and the mixture of sodium fluoride and sodium citrate(1:3).Saturation of HbCO in the preserved blood samples were determined at 0h,2h,8h,24h,3d,and 7d after treatment with the addictives,respectively.The data were evaluated statistically.Results The stability of HbCO was significantly affected in the formaldehyde and sodium nitrite-treated samples,but no significant effects of the other preseratives on the blood samples were detected.Conclusion The stability of HbCO in the blood samples conserved varies with the type of the preseratives used.The samples taken from cases with suspected death from carbon monoxide poisoning should be kept with proper preseratives.Blood samples preserved with formaldehyde and sodium nitrite are not suitable for HbCO determination.

In recent years, lower and lower class attendance has plagued the quality of uni-versity teaching. To solve this problem, this study conducted a questionnaire survey in accordance with the concepts of the Education Reform microscopic systems engineering and the method of SIMPP. The results showed that factors affecting student classroom attendance included two aspects: the sub-jective and objective factors. Indicators related to the subjective factors were: the personal attitude when faced with failure exams, the personal learning interest and personal grasp of the main source of knowledge. Indicators related to the objective factors were: school and teachers. Also, this study gave some suggestions on how to improve students' classroom attendance to provide data basis and refer-ence for further study on class attendance.

College students' self cognition of the learning effectiveness influences their learning behavior greatly. Focusing on college students' self cognition of their learning effectiveness, and then standardizing their learning behavior is one of the important work of educators in colleges. Therefore this paper has designed the questionnaire of the influencing factors of learning effectiveness self cog-nition, used SIMPP analysis method to analyze it, and set up the relation model. The analysis shows that college students' self cognition of learning effectiveness is influenced not only by students' dili-gence level and the recognition degree of specialized subject, but also by the factors such as the attitude when you get the bad results. The result provides data basis and scientific basis for future practice and relevant research for educators in colleges.

In order to improve the teaching reform of higher education systematically and op-erably, and in order to improve the effectiveness of teaching reform, teaching reform in Higher Educa-tion in the micro system engineering and SIMPP analysis method were proposed. With questionnaire survey on classroom learning state of all students from traditional Chinese medicine Grade 2010-2013 of Beijing University as an example, the principle and operation steps of SIMPP analysis method was systematically discussed. According to the students' related behavior pattern and strategy analysis affected by teachers, the analysis of the results of interpretation method and application direction was illustrated. At the same time, through the monograph, nine aspects (academic diligence level, learning effectiveness of self cognition, learning interest, teacher's influence, self-study ability, class atten-dance, learning objectives, curriculum satisfaction, major satisfaction) were analyzed by SIMPP. By modeling the related factors and their relationship, the internal relations between different factors were cleared, and the students' behavior patterns were found, and the corresponding reform measures were designed. Research shows that the concept and methods of teaching reform in Higher Education in the micro system engineering will produce a positive impact on teaching reform, curriculum reform, and the integration of family education and school education.

Diseases with excessive angiogenesis such as tumors need to be treated with anti-angiogenesis agents, while ischemic diseases need to be treated with pro-angiogenesis agents. Salviae Miltiorrhizae Radix et Rhizoma, the representative drug which promotes circulation and resolves clots, was widely used in treating tumors and ischemic diseases. This review focused on the current research on the angiogenic effect of Salviae Miltiorrhizae Radix et Rhizoma and its water-soluble or fat-soluble components. It was found that there are some controversy reports. Both pro-angiogenic and anti-angiogenic effects of Salviae Miltiorrhizae Radix et Rhizoma and its components have been reported. The major difference between tumor and ischemia is the maturity and stability of vessels. Angiogenesis is a complex process involving many signaling molecules. Therefore, the components of Salviae Miltiorrhizae Radix et Rhizoma will regulate the levels and functions of angiogenesis, and then vessels produce different maturity and stability. Overall, such controversy may be caused by differences in experimental conditions, the diversity of Salviae Miltiorrhizae Radix et Rhizoma components, the complexity of the angiogenic process, and the differences of drug distribution under different pathological states in vivo.

Aconitum brachypodum is traditionally known to be toxic chinese medicie, but its chemical constituents is not enough studied to date. To further elucidate the chemical constituents of A. brachypodum, 80% ethanol extract of A. brachypodum collected from Dong-Chuan area was investigated, which led to isolation of seventeen compounds. By spectroscopic methods, their structures were determined as hypaconitine (1), mesaconitine (2), talatisamine (3), neoline (4), fuziline (5), aconine (6), bullatine A (7), lepeine (8), songrine (9), isocorydine (10), beta-sitosterol (11), daucosterol (12), stearic acid (13), triacontanol (14), palmitic acid (15), benzoic acid (16), and inosine (17), respectively. All compounds except for compounds 1 and 7 were isolated from A. brachypodum for the first time.
Aconitum ; chemistry ; China ; Drugs, Chinese Herbal ; chemistry ; Magnetic Resonance Spectroscopy

Objective: To chine and express the recombinant human endothelial monocyte-activating polypeptide-Ⅱ(EMAP-Ⅱ)and identify its anti-tumor biological activities.Methods: EMAP-Ⅱ_(147-312)was expressed by the expression vector pMAL-p2x and E.coli BL-21 and the product was purified.The production of tissue factor(TF)in human umbili- cal vein endothelial cell ECV-304 mediated by the recombinant EMAP-Ⅱwas determined by chemiluminescence sub- strate.The promoting effect of recombinant EMAP-Ⅱon TNF?-induced ECV-304 cell.Apoptosis was determined by flow cytometry.Its inhibitory effect on human pancreaic cancer cell SW1990 proliferation was determined by MTT method. Results:DNA sequencing verified that EMAP-Ⅱwas correctly cloned.The molecular mass of the protein identified by SDS-PAGE was consistent with the theoretic value.The productivity of recombinant EMAP-Ⅱwas 500?g per 1 g bacteria (wet mass).The purified product induced expression of tissue factor(TF)in ECV-304 cells;it also enhanced the sensi- tivity of ECV-304 cells to the apoptotic effect of TNF?([16.6?2.5]% vs[25.6?2.3]%,P

Objective To investigate the distribution of water-borne fluoride and the current status of water defluoridation project by improving drinking water quality in endemic fluorosis areas in Shandong province,and to provide scientific basis for making strategies in prevention and control of the disease. Methods According to "the National Technical Scheme for Endemic Disease Control in 2004, 2005 and 2006", 113 endemic fluorosis diseased counties(cities, and districts) of the province's 17 cities were screened in order to investigate the fluoride level in drinking water in fluorosis villages, recheck the fluoride level after implementing the water defluoridation project, and investigate the current status of the water defluoridation project. The fluoride level in drinking water was determined by F-ion selective electrode. Results There were a total of 5816 water defluoridation projects in the province. Most of them were carried out by drilling a deep well to get under-ground water. The wells still in good condition were accounted for 72.80% (4234/5816). Intermittent operated wells were accounted for 3.11% (181/5816). Abandoned wells were accounted for 24.09%(1401/5816). Level of water fluoride was determined in 6940samples from fluorosis villages(villages that not carry out the water defluoridation project as well as villages carried out the water defluoridation project with abandoned wells were included) and the value that lower or equal to 1.00mg/L was determined in 2987 villages which accounted for 43.04% (2987/6940). Level of water fluoride that over 1.00 mg/L was found in 3953 villages which accounted for 56.96% (3593/6940), and the highest level of water fluoride was 11.33 mg/L. Level of water fluoride were determined in 4415 samples from water defluoridation project and the value lower or equal to 1.00 mg/L was in 2983 wells which accounted for 65.53%(2983/4415). The value over 1.00 mg/L was in 1522 wells which accounted for 34.47%(1522/4415), the highest value of water fluoride was 9.71 mg/L. Conclusions Level of water fluoride in up to 1/2 of the villages and 1/3 of the projects, is still higher than the standard in Shandong province. Nearly 1/4 of the project has been abandoned. The current situation for endemic fluorosis control is still not good in the province, countermeasures for endemic fluorosis must be carried out as soon as possible and surveillance of water defluoridation project must be strengthened.