Objective:To investigate whether celecoxib(CXB), a specific COX-2 inhibitor,can inhibit the proliferation of cyst lining epithelial cells through blocking mitogen-activated protein kinase(MAPK) signal transduction pathway.Methods: Primarily cultured cells were treated with different concentrations of CXB(0,2.5?10~(-6),5?10~(-6),1?10~(-5),2?10~(-5),3?10~(-5),4?10~(-5),5?10~(-5)mol/L) and the proliferative status was evaluated by BrdU assay.The levels of vascular endothelial growth factor(VEGF) were measured by enzyme-linked immunosorbent assay(ELISA);the production of proliferating cell nuclear antigen(PCNA) and phosphoMAPK were measured by real-time reverse transcription-PCR assay;and the expression of PCNA,MAPK and phospho-MAPK protein was detected by Western blotting.Results: BrdU assay revealed that CXB inhibited cell growth in a concentration-dependent manner;the maximum inhibition rate([63.9?1.2]%) was found when cells were treated with 2?10~(-5) mol/L CXB for 24 h.VEGF secretion by cyst lining epithelial cell was reduced by CXB in a concentration and time-dependent manner.The mRNA and protein levels of PCNA,phospho-MAPK in CXBtreated group were lower than those in control group(with no CXB treatment).Conclusion: CXB can obviously inhibit the proliferation of cyst lining epithelial cell and the secretion of VEGF,which might be through interfering with the phosphorylation of MAPK and partly blocking MAPK signal transduction pathway.

Objective To improve the quality and santdard of medical French bilingual teaching and promote the learning ability of the students in medical universities. Medthods Analogy between English and French was applied to the intervention of bilingual teaching in the clinical students who were learning medical French. The advantages and disadvantages were analyzed.Results The students could apply their prior English to medical French learning and make progress in both languages. A series problems were found during the practice:arrangement of teaching contents, lack of teaching materials and shortage of teaching staff. Conclusion Analogy between English and French is an effective teaching method in both foreign language teaching and bilingual teaching. But the expected teaching goals can be achieved only by formulating reasonable teaching contents and strategies and mproving teachers’ quality.

Infiltrated immune cells and cytokines in the tumor microenvironment may play different functions that appear tightly related to clinical outcomes.Radiotherapy mainly kills tumor cells through radiobio-logical effect,meanwhile it can indirectly change tumor immunologic microenvironment,and has a local or dis-tant anti-tumor immunological effect cooperatively.Animal experiments and clinical trials of radiotherapy com-bined with immunotherapy display well applied prospects,but the mode of radiotherapy in combined treatment needs further research.

Objective: To evaluate the development, safety and efficacy of percutaneous nephrolithotomy(PNL) for management of upper urinary tract calculi in pediatric patients.Methods: In the study, 77 pediatric patients undergoing 87 PNLs through mini or standard tract for upper urinary tract calculi between January 2005 and December 2016 in Peking University People''s hospital were reviewed, including 69 renal calculi, 6 upper ureteral calculi, 12 renal and upper ureteral calculi, 35 single calculi, 43 multiple calculi and 9 staghorn calculi.The development and efficacy of PNL in pediatric patients were studied by analyzing the characteristics and clinical indexes, and by reviewing the associated literature.The Clavien classification system was used to evaluate the complications after PNL.Results: A total of 87 PNLs were performed in 77 pediatric patients.Eighty-one upper urinary tract calculi were managed through a single tract(93.1%), 5 pediatric patients were managed through 2 tracts(5.7%), and 1 pe-diatric patient was managed through 3 tracts(1.2%).The mean operating time was (77.0±29.8) min.The stone-free rate after one session was 100% for single calculi and 71.2% for multiple or staghorn calculi, 5(5.8%) children underwent auxiliary procedure to remove the residual calculi and the final stone-free rate of PNL was 88.5%.One of the main complications of pediatric PNL was fever.Sixteen(18.4%) had moderate fever(38-39 ℃), 5(5.7%) had high fever(39-40 ℃) and there were no severe complications of infection, such as sepsis or septic shock.The mean hemoglobin loss was (10.3±16.1) g/L and the serum creatinine rise was (7.0±13.3) μmol/L.One(1.2%) pediatric patient suffered ureteroscopic lithotripsy because of the obstruction by the residual stone in ureter.No injury of organs or retroperitoneal urinary extravasation occurred.General assessment of the complications showed Clavien grade Ⅰ complications in 14 (16.1%) pediatric patients, grade Ⅱ in 7(8.0%) children and grade Ⅲ in 1(1.2%) children.There was no grade Ⅳ or Ⅴ complications.The overall complication rate was 25.3%.Conclusion: PNL for management of upper urinary tract calculi in pediatric patients is effective.Complications after PNL, as assessed with Clavien classification system, are mild and PNL in pediatric patients is safe.

OBJECTIVE:To provide reference for reasonably designing package inserts of ointment for manufacturers. METH-ODS:According to items included in Management Regulation for Package Insert and Label and Specification for Chemicals and Bi-ological Products for Treatment,labeled items in package inserts of 51 kinds of ointment for external use during Jan.-Jun. 2016 in our hospital were analyzed. RESULTS:Among the 51 kinds of ointment,39 were domestic varieties and 12 were imported variet-ies. In the package inserts of 39 domestic varieties,items with lower labeling rates were overdose,pharmacokinetics,use guid-ance,pharmacology and toxicology,with labeling rates of 2.6%,5.1%,15.4%,28.2%;while the labeling rates of imported vari-eties were 16.7%,83.3%,75.0%,100%. Compared with package inserts of imported ointment,composition,dosage and usage, adverse reactions,contraindications,precautions,drug interactions,medication for special populations were not enough detailed in domestic ointments. CONCLUSIONS:It is suggested that manufacturers consult medicine experts, list all auxiliary materials through Management Regulation for Drug Description and Label,refine and improve the labeling contents of dosage and usage,ad-verse reactions,precautions,medication for special populations,pharmacology and toxicology,overdose,etc. In addition,admin-istrative departments should strengthen the regulatory approval efforts.

The clinical puncture skills are the elementary technical skills for every medical student.In recent years,reforms have been carried out on teaching method of the training of clinical puncture skills in our hospital and we have achieved satisfactory teaching effect.These reform measures include reforming of operating flow,repeated training from simulative training to clinical practice,educating the medics'consiousness of medical safety and cultivating their competence of communication with patients.

Objective To investigate the status of urogenital Ureaplasma urealyticum (Uu) infection and their drug tolerance in our area,so as to guide rational administration for the clinic.Methods Mycoplasma culture and drug susceptibility test were performed for 771 patients with urogenital infaction. The culture,identification and drug resistance of mycoplasma were carried out with one complex mycoplasma kit.Results The positive rate of Uu was 49.9%. The proportional percentage of males was 12.5% and the Uu positive rate was 22.3%,for females,the proportional percentage and Uu positive rate was 87.5% and 60.6% respectively. The population aged 21-40 was susceptible to Uu infection. The most sensitive antibioties to Uu was clindamycin (95.12%),followed by doxycycline (87.57%) and roxithromycin (86.24%).Conclusion The difference of Uu drug sensitivty was significant in different areas. So it is necessary to select antibioties by drug sensitivity. Clindamycin,doxycycline and roxithromycin may are used as preferred antibioties in treating Uu infection in our area. The drug-resistance status of spectinomycin and lincomycin was serious.

This paper probes into the scientific research management at a teaching hospital,where three responsibilities are required in clinical service,medical education and research.The staffs＇ need for scientific research is discussed base on Maslow＇s need-hierarchy theory.An incentive system is also proposed for research and professional development of the hospital.

Objective To compare the effects of transcranial and trans-spinal low frequency magnetic stimulation (MS) on the expression of growth-associated protein-43 (GAP-43) in the spinal neurons of rats after spinal cord injury (SCI). Methods Forty-five Sprague-Dawley female rats were divided randomly into a transcranial magnetic stimulation (TMS) group,a trans-spinal cord magnetic stimulation group and a model control group with 15 in each group.Another 6 rats served as a normal control group.Spinal cord injury at the T9-10 level was modeled according to the modified Allen's method.The rats in the two MS groups received magnetic stimulation at 0.5 Hz and 75％ of the maximum output intensity ( 1.9 T) of the magnetic stimulator beginning 24 h post injury.They received 30 pulses daily for 28 days while the rats in the model control group were not exposed to MS.Basso-Beattie-Bresnahan (BBB) scale scores and motion evoked potentials (MEPs) were measured at the 1st,7th,14th,21 st and 28th day post injury.The expression of GAP-43 protein was studied using immunohistochemical methods and semi-quantified by Western blotting. Results At the 4th week post injury the average BBB scores in the model control group,the TMS group and the trans-spinal cord magnetic stimulation group were all significantly different. MEP amplitudes decreased significantly in all groups after the injury,and the latency was prolonged,but there were no significant differences among groups at any time point.GAP-43 expression also increased after SCI,and it was significantly higher in the MS groups than in the model control group at 4 weeks. Moreover,the expression of GAP-43 in the trans-spinal cord MS group was significantly greater than in the TMS group.Conclusion Magnetic stimulation can promote nerve regeneration and improve locomotor recovery after spinal cord injury,at least in rats.The effect of trans-spinal cord magnetic stimulation is superior to that of TMS.The mechanism may be related to the activation of central pattern generators.

Objective To observe the therapeutic efficacy of moxa smoke fumigation in promoting the wounds healing and improving the pain at dressing changes after perianal abscess surgery.Method A hundred eligible patients with perianal abscess were divided into a treatment group and a control group by the random number table, 50 cases in each group. The subjects all received dressing change from nurses of the Anorectal Department. In addition, the treatment group received moxa smoke fumigation at wounds for 30 min and the control group received microwave radiation at wounds for 30 min, both after dressing change, for a total of 14 times. The wounds-healed time, Visual Analogue Scale (VAS) scores on the day 1, 2, 3, 7, and 14 after the surgery, and Verbal Rating Scale (VRS) scores of the two groups were observed.ResultPatients in the treatment group took significantly shorter time to heal the wounds compared to those in the control group (P<0.05); the VAS score on the first day after the surgery in the treatment group was insignificantly different from that in the control group (P>0.05), while the scores in the treatment group on day 2, 3, 7 and 14 were significantly lower than those in the control group (P<0.05); the VRS scores on day 1, 2, 3, 7, and 14 in the treatmentgroup were significantly lower than those in the control group (P<0.05).Conclusion Moxa smoke fumigation can promote the healing of the wounds after perianal abscess surgery, reduce the pain brought by dressing change, and this analgesic effect is consistent.