Constructing internal quality control system is an important measure to improve teaching quality in the universities.Teaching supervision plays an important role in the teaching quality guaranteeing system.This article introduced and summarized the practice of teaching supervision in Tianjin Medical University including the establishment of three-leveled teaching supervision,emphasis of process management,innovation,significance and achievements of teaching supervision.

Objective To study the effects of nifedipine and mibefradil on the cell proliferation,apoptosis,migration on the HEC-1 A in vitro and also study the mRNA and protein expression levels of the calcium channel alpha1 D( Cav1.3 ) and calcium channel alpha1G (Cav3.1 ) to discuss the effects of the calcium antagonists on the mechanisms of the endometrial carcinoma.Methods ( 1 ) Add 10 μmol/L nifedipine and mibefradil at 15 minutes before adding 10 μmol/L 17β-estradiol( 17β-E2 ) and 100 μmol/L b-estradiol-6-(O-carboxymethyl) oxime(E2-BSA) to the HEC-1A in different time including 0,5,15,30,60,120 minutes.Then the changes of mRNA and protein were detected by reverse transcripiton( RT)-PCR and western-blot.(2)Add 1.25,2.5,5,10,20,40,80,100 μmol/L nifedipine and mibefradil to the HEC-1 A at 24,48,96 hours to detect the cell proliferation by 3-( 4,5 )-dimethylthiahiazo (-z-y1)-3,5-diphenytetrazoliumromide (MTT) method.(3) Add 10 μmol/L nifedipine and mibefradil to the HEC-1A,then detect the apoptosis at 0 minute,30 minutes,1 hour,6 hours,24 hours and migration in vitro at 36 hours with transwell methods.Results ( 1 ) After the pretreated effect of the nifedipine before 17β-E2,the mRNA express of Cav1.3 genes was lowest at 15 minutes,and returned to the control level after 30 minutes.The protein level didn't change very much in 30 minutes,but rose after 60 minutes.The Cav3.1 genes mRNA express was lowest at 5 minutes,rose at 30 minutes and returned to the 0 minute level gradually.(2) After the pretreated effect of the nifedipine before E2-BSA,the Cav1.3 genes mRNA was lowest at 5 minutes and returned at 15 minutes.The protein level rose gradually in 15 minutes but reduced after 15 minutes.The Cav3.1 mRNA and protein level were reduced at every time point.(3) After the pretreated effect of the mibefradil before 17β-E2,there was no change of mRNA expression of Cav1.3 genes.The protein level rose at 15 and 60 minutes,there was no change in any other time.The Cav3.1 genes mRNA were gradually reduced and the protein level rose at 15 minutes,and there was no change in any other times.(4) After the pretreated effect of the mibefradil before E2-BSA,the mRNA and protein of Cav1.3 levels were reduced after 15 minutes.There was no mRNA expression of Cav3.1,while the protein level was lowest at 15 minutes.(5)Nifedipine and mibefradil affected HEC-1A proliferation depended on the different concentration and interval time points.There was significant difference than those in control group ( P ＜ 0.05 ).( 6 ) There were statistical differences in apoptosis rate after adding nifedipine ( P ＜ 0.05 ),while rose at mibefradil treated the same time ( 24 hours:8.41 ± 0.07,0 minute:3.74 ± 0.18 ; P ＜ 0.05 ).(7) The numbers of stained cells after both nifedipine and mibefradil treated reduced more than control group.Conclusions ( 1 ) Nifedipine and mibefradil could inhibit both the effect of the estrogen on the L-type and T-type calcium channel in short time,meanwhile the mibefradil effects last long time. (2) The inhibited effect of the mibefradil on the proliferation,apoptosis and migration of HEC-1A cells in vitro is more significant than that by nifedidipine.

Objective: To study the relationship between mental health and achievement motivation of teachers.Methods: 322 high school teachers completed SCL-90 and Achievement Motivation Scale.Results: The percent of high-score teachers with at least one SCL-90 subscale scored more than 3 is more than 5%.There is obvious correlation between the score of SCL-90 and the AMS's.Conclusion: The high level of achievement-seeking or the high level of failure-avoiding is harmful to the mental health of teachers.

ObjectiveTo investigate the role of iNOS in the middle and late stage of pulmonary hypertension (PH) and the effect of L-Arginine(L-Arg) on these stage.MethodsThirty healthy male SD rats were randomly divided into five groups.All rats except those in control group were injected intraperitoneally (ip) with a single dose (50 mg/kg) of MCT to induce PH.Then the L3 and L5 groups were injected ip with 500 mg/kg L-Arg daily for 3 weeks and 5weeks respectively,the M3 and M5groups received a daily ip injection of the same amount of saline as L-Arg for 3 weeks and 5 weeks respectively; the same amount of saline was injected ip daily in control group for 5 weeks.Right ventricular systolic pressure(RVSP) was measured before lungs were excised for immunohistochemistry at the end of experiments. ResultsThe expressions of iNOS and elastin in M3 and M5 were higher compared to the control group,but L-Arg partly reduced the expressions of iNOS and elastin both at 3weeks and 5 weeks post-MCT.The reduction of eNOS expression in L3 and L5 groups were lower compared to M3 and M5 groups,but the eNOS expression in L3 and L5 groups were still lower than control group.ConclusionDuring the middle and late stage of PH,the expression of eNOS was decreased.The expression of iNOS was induced,which would produce numerous NO.However,these NO had no benefit on the development of PH.L-Arg could restore the balance of eNOS and iNOS,and could inhibit the development of PH,which may provide a new clues to explore the pathogenesis and treatment of PH.

AIM:To evaluate the inhibitory effect of FRNK on the phosphorylation of FAK and apoptosis in hepatic stellate cells (HSCs). METHODS: After stimulated with fibronectin, HSCs was transfected with FRNK plasmid by cationic liposome method. The apoptosis of FRNK-induced HSCs was examined by Annexin-V/propidium iodide double-labeled flow cytometry (FCM), gel electrophoresis and transmission electron microscope. The protein levels of FRNK, FAK and p-FAK (Tyr397) in HSCs were assayed by Western blotting, and RT-PCR was used to detect the expression of mRNA. RESULTS: The expression of FRNK was enhanced and the phosphorylation of FAK was inhibited after FRNK was transiently transfected into HSCs in vitro. The apoptotic rate in HSCs exposed to FRNK plasmid for 48 h was higher than that in the non-FRNK plasmid group [(25.37?1.92) % vs (9.28?1.05) %, P

Objective To establish a suitable extraction and purification process line for industrial production of liquiritin. Methods With the extraction rate of liquiritin as index, orthogonal test was used to determine the optimum conditions; with the retention rate of liquiritin and impurity removal rate as the indexes, orthogonal test was used to optimize the best ultrafiltration process parameters. Results The optimum extraction conditions were: 24 times 0.75%ammonia water, extracted three times, each time under 60 min. The liquiritin average extraction rate was 72.3%. The best ultrafiltration process parameters were: 10 nm inorganic ceramic membrane, pressure of 0.12 MPa, temperature of 25 ℃. The liquiritin average retention rate was 98.9%, and the average removal rate of impurity was 23.3%. Conclusion This process has low production cost and good safety, and is suitable for industrial application.

Objective To investigate the mixed protamine zinc recombinant human insulin lispro injection on glucose metabolism, immune function in patients with type 2 diabetes and its inflammatory mechanisms.Methods 125 patients enrolled were randomly divided into two groups according to the random number table: control group (n =61) and observation group (n =64).The control group were received conventional treatment, observation group were received mixed protamine zinc recombinant human insulin lispro injection on the basis of control group, with a course of three months of both groups.The fasting blood glucose (FBG), 2h post prandial blood glucose (2hPG), glycated hemoglobin (HbA1c), fasting insulin, insulin resistance index ( IRI) , CD4 +, CD8 +, CD4 +/CD8 +changes and inflammatory cytokines levels were compared before and after treatment between two groups. Results The level of FBG, 2hPG, HbA1c after treatment was respectively lower than that before treatment in both groups (P<0.05), and the above indexes of observation group after treatment was respectively lower than that of control group (P<0.05).The level of fasting insulin, IRI after treatment was respectively lower than that before treatment in both groups (P<0.05), and the above indexes of observation group after treatment was respectively lower than that of control group (P<0.05).The level of CD8 +was lower, CD4 +, CD4 +/CD8 +was higher after treatment than that before treatment in both groups, respectively (P<0.05), and the CD8 +level of observation group after treatment was lower, CD4 +, CD4 +/CD8 +was higher than that of control group, respectively (P<0.05).The level of TNF-α, IL-6, CRP after treatment was respectively lower than that before treatment in both groups (P<0.05), and the above indexes of observation group after treatment was respectively lower than that of control group (P<0.05).Conclusion The mixed protamine zinc recombinant human insulin lispro injection can significantly improve glucose metabolism in patients with type 2 diabetes, and enhance immune function, reduce inflammation, thereby reducing the incidence of cardiovascular events.

Objective To study the effects of an extended-interval dosing regimen of gonadotropin releasing hormone agonist(GnRH-a) in the treatment of adenomyosis. Methods 20 patients with adenomyosis who asked for medicine treatment were divided into two groups randomly(n=10). The patients in the study group were given four doses of triptorelin depot 3. 75mg every 6 weeks in a new extended-interval dosing regimen. The other patients in the control group were given triptorelin 3.75mg in the conventional depot regimen of six doses,each given 4 weeks apart. The changes of degree of dysmenorrhea and the uterine volume were investigated. And the level of sexual hormone was also detected both before and after therapy.Results After six months of therapy,the reliving rate of dysmenorrheal was 100% both in the new regimen and the conventional regimen. The uterine volume was reduced at 46.7 % and 47. 5 % . And the level of LH, FSH and E2 were decreased significantly(P 0.05).Conclusion The use of the extended-interval dosing regimen of triptorelin depot in adenomyosis results in a consistent hypoestrogenised state,which is similar to that achieved by the conventional regimen. The new regimen thus reduces the cost of treatment obviously.

Objective To probe into the current services and outcomes of township hospitals following their transformation, and their future positioning of functionality. Methods Pinpointing townships A, B and C as samples from a district in Beijing, in which field surveys were made in the township hospitals to learn their services, service provision methods and outcomes. Results Among the current services provided by these three hospitals, those of public health and primary healthcare nature in hospital A account for 50% each; those in hospital B account for 70% and 30% respectively; those in hospital C account for 60% and 40% respectively. Recommendable services provided in these hospitals include universal coverage of medical files, management of infectious diseases, public health emergency management, and immunization. Conclusion Township hospitals as the center of the 3-tier rural health service network, deserve a repositioning of their functionality to fit the health needs of residents at large.

Objective To survey the status of clinical isolates multi-drug resistant Enterobacteriaceae produ-cing KPC carbapenemase in Huizhou city of Guangdong Province .Methods 81 strains of multi-drug resistant Enter-obacteriaceae were collectded from 2009 to 2011 in Huizhou region.Modified Hodge test(MHT) was used to screen stains which may produce carbapenemase , modified three-dimensional test was used to detect ESBLs , AmpC and MBLs.Polymerase chain reaction (PCR) and gene sequencing methods were performed to confirm KPC genotypes . Results Of 81 strains multi-drug resistant enterobacteriaceae ,13 of which had passitive results were screened by modified Hodge test ,including 7 strains of Enterobacter cloacae ,4 strains of Klebsiella pneumonia and 2 strains of Escherichia coli;By modified three-dimensional test ,9 strains produced MBLs ,2 strains produced ESBLs ,1 strain pro-duced AmpC ,1 strain produced ESBLs and AmpC at the same time .KPC was amplified from a strain of Klebsiella pneumonia which produce ESBLs by PCR ,KPC-2 genetype was identified by gene sequencing .Conclusion Klebsiel-la pneumonia with KPC–2 carbapenemase has emerged in huizhou city ,but the production of metallo-beta-lactamase is the main cause that Enterobacteriaceae resist to carbapenemase drugs .