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.

Objective To investigate the Lemple-Zie complexity (LZC) characteristics in patients with Alzheimer' s disease(AD),mild cognitive impairment(MCI) and normal elderly,and the possibility of differentiating AD,MCI and normal elderly by LZC.Methods Electroencephalogram (EEG) of 30 AD patients,30 MCI patients and 20 normal elderly with eyes closed in rest state were recorded.In acquired EEG data,2048 points(10.14 s)of each channel were selected for LZC calculation by Matlab 7.0 software.Results (1) The average LZC values in AD,MCI and control groups were 0.396 ± 0.036,0.470 ±0.051,0.523 ±0.055 respectively.As compared with control group,the values in AD and MCI groups were decreased (F =43.092,P =0.000).(2) LZC values of AD in all channels (from 0.373 ± 0.042 to 0.430 ±0.083),whole brain,bilateral hemispheres,frontal and temporal areas were significantly lower than those in the normal group (from 0.498 ± 0.067 to 0.566 ± 0.059 ; t =3.602-8.747,P =0.000-0.010),and showed the significant decline(＞ 23％)in bilateral anterior middle temporal,frontal areas,the left parietal area.(3) Except the T6 channel,LZC values of AD groups in the remaining channels(from 0.373 ±0.042 to 0.418±0.063),the whole brain,bilateral hemispheres,frontal and temporal areas were significantly lower than those in the MCI group(from 0.455 ± 0.072 to 0.489 ± 0.063 ; in T5 channel,t =2.038,P =0.041,the others t=4.178-7.424,all P=0.000).(4) LZC values of MCI groups in the whole brain,bilateral hemispheres,temporal areas,parietal areas,the left frontal area were notably lower than those in the control group.Conclusions With the decline of the cognitive function,the EEG complexity value shows the parallel change.It suggests that the EEG complexity value can reflect the change of brain function in the duration from normal age to dementia in some degree; The MCI patients with abnormal LZC values in temporal and frontal lobes have a certain degree relation with the occurrence of AD.

BACKGROUND:Silver ion dressing can reduce tissue necrosis, accelerate the epithelial formation, relieve the patient’s pain during the treatment, and strengthen various growth factors for wound repair, which is based on the theory of wet healing theory. It has obvious advantages for chronic wound healing, such as anti-infection and promoting wound granulation and epithelial hyperplasia.
OBJECTIVE:To observe the efficacy of silver ion dressing used in healing of chronic wound.
METHODS:A total of 40 patients who had chronic wounds were selected from Tangshan Branch Hospital of Nanjing General Hospital of Nanjing Military Command. Al cases were divided into two groups. The treatment group was treated with silver ion dressing, and the control group was treated with routine dressing. Secretions extracted from wound were used for bacterial culture prior to and 7, 14, and 21 days after treatment. Healing condition and velocity were observed and wound pain was assessed using visual analog scale.
RESULTS AND CONCLUSION: The detection rate of wound bacteria in the treatment group was significantly lower than that of the control group (P<0.05). And the time of healing was shorter in the treatment group than the control group (P<0.05). Wound pain during dressing change was relieved (P<0.05). Medical costs showed no difference between the two groups (P>0.05). No adverse reaction occurred in the two groups. These findings indicate that silver ion dressing used in chronic wound healing can prevent infection and promote wound granulation or epithelial hyperplasia. It can effectively promote wound healing and has no bad reaction.

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.

Objective:To investigate and compare the influences of Ghrelin and growth hormone releasing peptide 6(GHRP-6) on the contractility of stomach smooth muscle in guinea pigs,and to study the related mechanism.Methods: The myenteric plexuses of gastric fundus and antrium in guinea pigs were stimulated with electrical field stimulation(EFS) to observe the influence of Ghrelin and GHRP-6 on the contractility of stomach smooth muscle.The influences of N-nitro-L-arginine(L-NNA) and L-Arginine(L-AA) on the effect of Ghrelin and GHRP-6 were studied to disclose the mechanism of the effects of Ghrelin and GHRP-6.Results: The circular muscle tissues of the gastric fundus generated on-relaxations and off-contractions when stimulating myenteric plexuses with 1-16 Hz electrical field;the on-responses induced relaxation could be reduced by L-NNA and the off-contractions induced contraction could be blocked by atropine and guanethidine.In fundic strips,ghrelin and GHRP-6 could decrease the on-response induced relaxation and increase off-response induced contraction of the muscle,with the effect of Ghrelin obviously stronger than that of GHRP-6.L-NNA could increase the effects of Ghrelin and GHRP-6-induced muscle contraction,and L-AA could decrease their effects.In the antral strips,electrical field stimulation of myenteric plexuses led to disappearance of relaxation wave,only leaving off-contractions.Both ghrelin and GHRP-6 could increase that contraction.Conclusion: Both ghrelin and GHRP-6 can promote the contractility of stomach smooth muscle in guinea pigs through stimulating myenteric plexuses of gastric fundus and antrium,which might be related to the NO pathway.

OBJECTIVE:To investigate outpatients' cognition(including knowledge,attitude and behavior)on adverse drug reactions(ADR),and to analyze the influential factors of ADR cognition.METHODS:An on-the-spot questionnaire survey was conducted in which a total of 488 outpatients sampled from our hospital from May to December in 2007 were investigated and the data analyzed statistically.RESULTS:The correct rate was 36.6% for the questions related to cognition on ADR.70.5% of the patients investigated had a poor cognition on ADR.The factors influencing patients' cognition on ADR included educational background,ADR experience,pharmacists' guidance on medication,source of medicine knowledge,occupation,doctors' guidance on medication,community ADR lecture,and gender.CONCLUSION:The outpatients have a poor cognition on ADR.Both doctors and pharmacists should offer guidance on medication and give lecture in community to inform patients the knowledge about rational administration and ADR.

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.

Protein kinase B (PKB), a serine/threonine kinase Akt, regulates many vital cellular functions, such as cell apoptosis, cell cycle progression and glucose metabolism, etc. Akt/PKB carries out these functions mainly through phosphorylation of a number of cellular substrates. As one of the important substrates of Akt, FOXO transcription factors have attracted more and more attention in regulating cell cycle and apoptosis. FOXO transcription factors are primarily regulated by the phosphatidylinositol 3-kinase/Akt signal pathway via phosphorylation,and re-positioning accompanied by sub-cellular distribution. This article reviews the role of FOXO transcri ption factors in neuronal apoptosis after cerebral ischemia.

Objective To investigate the prevalence of small intestinal bacteria overgrowth (SIBO)in patients with minimal hepatic encephalopathy (MHE). Methods Ninety patients with cirrhosis and 20 healthy volunteers were studied. All of them were assessed with glucose hydrogen breath test (GHBT) to detect SIBO. And number connection test (NCT-A, NCT-BC) and digit symbol test (DST) were used to diagnose MHE. Results One case (5.0%) out of 20 healthy volunteers was SIBO and none was MHE,and 28 cases (31.1%) out of 90 cirrhosis patients were SIBO and 38 cases (42.2%) were MHE. Twenty-one (55.3%,21/38) cases were diagnosed as SIBO among these patients with MHE,and 7 cases (13.5%,7/52)were diagnosed as SIBO among these patients without MHE. There was significant difference between cirrhosis with MHE and cirrhosis without MHE (x2 = 17.90,P＜ 0.01 ). Conclusions Patients with cirrhosis have a higher prevalence of SIBO. The incidence rate of SIBO in cirrhosis patients with MHE is more than that without MHE.