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Objective:To investigate the status quo and influencing factors of tutors' guidance satisfaction of medical postgraduates.Methods:Te satisfaction of tutors' guidance of 149 medical postgraduates from a class Ⅲ teaching hospital in Beijing who would graduate were investigated with questionnaires and statistically analyzed. SPSS 22.0 software was used for data statistical.Results:The rate of satisfaction of tutors' guidance was 92.62%. The satisfaction with the training of ideological ethics and academic integrity was relatively higher (94.97%), and the satisfaction with career planning guidance was lower (89.71%). The tutors' guiding frequency and contents, tutor's attention to postgraduates and the relationship between them, and so on had certain influence on the tutors' guidance satisfaction.Conclusion:The mechanism of tutor management should be strengthened and the management level of postgraduate should be improved.
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Prostaglandin E2 (PGE2) is a bioactive polyunsaturated fatty acid produced by arachidonic acid, and it is mainly metabolized in the liver and has an important regulatory effect on various liver diseases. Prostaglandin E synthases (PGESs) are important terminal rate-limiting enzymes in the PGE2 synthesis pathway and are involved in the development and progression of liver disease. This article mainly summarizes the role of PGESs in liver injury, hepatitis, and liver cancer in existing studies, hoping to provide a reference for further research on the role of PGESs in liver diseases.
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Objective To compare the safety and effectiveness of three types of intrauterine device (IUD) inserted immediately after artificial abortion.Methods A randomized controlled clinical trial was performed in 4 family planning service stations in Pudong New Area from January to December 2012.Total 1 200 eligible women were randomly assigned to receive three types of IUD:MYCu,TCu380A or G-Cu200 (n =400 in each group) immediately after vacuum aspiration.All subjects were followed up for 12 months.The cumulative rates of termination of three IUD after 12 months were analyzed with WHO LTA 2.0 life table.Results Total 1 199 subjects were followed up for 12 months with a drop-out rate of 0.08％ (1/1 200).No any uterine perforation was found.During the 12 months the pregnancy rates with IUD in situ in MYCu,TCu380A and G-Cu200 groups were 0.26/100 women year,0 and 0.52/100 women year,respectively (x2 =1.951,P ≥ 0.2).The rates of expulsion in three groups were 0.26/100 women year,1.84/100 women year and 2.05/100 women year,respectively(x2 =5.539,P =0.066).The remove rates related to bleeding and paining in three groups were 1.26/100 women year,7.29/100 women year and 2.76/100 women year,respectively (x2 =21.625,P =0.001).The discontinuation rates related to IUD use in there groups were 3.25/100 women year,9.00/100 women year and 5.50/100 women year,respectively(x2 =12.191,P =0.004).The rates of Abnormal position in three groups were 1.51/100 women year,0 and 0.26/100 women year,respectively (x2 =8.649,P =0.014).Conclusion Three IUDs inserted immediately after vacuum aspiration are all effective.Among three IUDs,MYCu shows lower expulsion rate,lower discontinuation rate related to IUD use and higher continuous rate; but the abnormal position rate of MYCu is higher than other two types IUD.
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Objective To evaluate the clinical value of ultrasonography detecting the poster urethrovesical angle(PUVA) in diagnosis of stress urinary incontinence(SUI).Methods From Jan.2006 to Dec.2008,the PUVA in resting phase (PUVA-r) and stress phase( PUVA-s) between with SUI and 100 healthy women were measured by color Doppler ultrasound,including 57 cases in SUI degree Ⅰ,22 cases in SUI degree Ⅱ,5 cases in SUI degree Ⅲ.Results (1) The PUVA-r and PUVA-s were (130±29) and (158±36)in SUI patients,which were significantly higher (113±19)and (115±23)in control group (P<0.01).(2) Correlation analysis showed that PUVA-s was positively correlated with the severity of SUI ( P < 0.01).(3) The area under the receiver operating characteristic curves (ROC) of PUVA-s was 0.82 (95% CI:0.76-0.89) between SUI patients and healthy women.When PUVA-s ≥ 140 ° was chosed as the cut-off value,the specificity,accuracy rate and positive predictive value in diagnosis of SUI were 84%,79%,81%,which were significantly higher than those when cut-off value of PUVA-s ≥ 120(54%,68%,62%; P < 0.05 ).Conclusion The PUVA-s in SUI patients are significantly increased and is positively correlated with the severity of SUI,which are indicated that PUVA-s ≥ 140should be used as cut-off value in diagnosis of SUI by ultrasonography.
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Objective To review the experience in the management of gastric cancer with liver cirrhosis and portal hypertension.Method A retrospective analysis was made in 35 gastric cancer cases with liver cirrhosis and portal hypertension admitted into our hospital from January 2000 through June 2009.Result There were no intraoperative death in this group.Postoperative ascites occurred in 19 patients,anastomotic leakage in one case,anastomotic bleeding in 2 cases,wound bleeding in 2 cases,intraabdominal infection in 17 cases (of which combined fungal infection in 4 patients),incision infection in one patient and chylous leakage in one case.The morbidity rate was 71%.Four patients died during hospitalization including multiple organ dysfunction syndrome in 2 cases,with mortality rate of 11%. Conclusion In order to reduce the incidence of mortality and complications,we should complete preoperative evaluation,correct perioperative management,guide surgery with damage control concept,follow individualized principles and emphasize on preventive devascularization.
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BACKGROUND: Preliminary study has proven that adult human bone marrow-derived mesenchymal stem cells (MSCs) suppress peripheral blood lymphocytes proliferation.But the mechanism was still to be investigated.OBJECTIVE: To study the negatively regulatory effect of adult human MSCs on allogeneic lymphocyte proliferation by cell-free condition.DESIGN,TIME AND SETTING: Cytological observation in vitro,which was performed in the Lanzhou General Hospital,Lanzhou Military Area Command of Chinese PLA between October 2005 and December 2007.MATERIALS: The bone marrow sample was provided by the allo-transplantation donor.The peripheral blood lymphocytes were provided by the healthy volunteer.METHODS: Adult human MSCs were separated with Percoll + adherence method.Allogeneic peripheral blood lymphocytes were obtained from healthy donors with Ficoll solution and the cell concentration was adjusted as 2×109/L for use.100μ L MSCs culture supernatant was taken out in 96-well plates.The groups were following: A superuatant + 3-day MSCs culture media (100 μ L/well); B superuatant + phytohemagglutini (PHA; 1 g/L,5 μ L); C medium + LG-DMEM culture media containing 10% fetal bovine serum (100 μ L); D medium + PHA (1 g/L,5 μ L).The cells were incubated at 37 ℃ with 5% CO2 in a fully humidified atmosphere for three days.MAIN OUTCOME MEASURES: Effect of MSCs supematant on proliferation and transformation of variant lymphocytes.RESULTS: Peripheral blood lymphocytes proliferation was suppressed as compared with the blank control group and PHA group after MSCs culture,and the inhibition ratio was 9.00% (P ＜ 0.05).When lymphocytes were stimulated by PHA,the suppression effects were even stronger and the inhibition ratio was 20.91% (P ＜ 0.01).CONCLUSION: Adult human MSCs supernatant can suppress peripheral blood lymphocytes proliferation and transformation; furthermore,PHA can enhance the inhibitory effect,suggesting the negative regulation is at least in part due to indirectly inhibiting lymphocytes via soluble cytokines.
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Objective To investigate the roles of matrix metalloproteinase-9, -2 (MMP-9, 2), and tissue inhibitors of metalloproteinase-1,2 (TIMP-1, 2) in pathogenesis of the accretio placenta. Methods The women with the placenta accrete were recruited and the placenta (23) and deciduas tissues (9) after labor were obtained, and the placenta (28) and deciduas (11) from women without the placenta accreta were obtained as control to get, too. The expressions of MMP-9, -2, TIMP-1, 2 in the placental and decidual tissues were analyzed by real-time PCR. Results mRNA expression of MMP-9 in the placenta accreta was (3.21?0.76) copies/?g total RNA, significantly higher (P