Objective:To explore the Wnt-β-catenin signal molecule expression level in acute kidney injury rats renal tissue. Methods:A total of 48 rats accorded to the random number table method were divided into normal control group ( Control group) ,sham operation group ( Sham group) and ischemia reperfusion group ( IRI group) ,each group with 16 rats,Control group was given normal fed,IRI group were established ischemia reperfusion injury rats model,Sham group opened dorsal skin and then wound was closed. 4 rats were sacrificed respectively at 1,3,5,7 d after surgery,the pathological changes of kidney tissue were observed in the three groups,and the serum creatinine,urea level was detected in the three groups. Wnt4,β-catenin,Lrp6 protein expression was detected in three groups of rats by Western blot,Wnt4,β-catenin,Lrp6 mRNA in renal tissues were detected by Real-time quantitative RT-PCR. Results:There was no significant difference in renal injury score and serum creatinine between Control group and Sham group (P>0. 05),IRI group kidney injury score and serum creatinine,urea first increased and then gradually decreased,which was the highest in 3 d after surgery,IRI group renal injury score and serum creatinine,urea were significantly higher than those in Control group and Sham group 1,3,5,7 d after surgery (P<0. 05). There was no significant difference in Wnt4,β-catenin,Lrp6 protein between Control group and Sham group (P>0. 05),IRI group Wnt4,β-catenin,Lrp6 protein gradually increased,which reached to peak at 5 d after surgery,and then gradually decreased,IRI group Wnt4,β-catenin,Lrp6 protein were significantly higher than those in Control group and Sham group 1,3,5,7 d after surgery(P<0. 05). There was no significant difference in Wnt4,β-catenin,Lrp6 mRNA between Control group and Sham group (P>0. 05),IRI group Wnt4,β-catenin,Lrp6 mRNA gradually increased,which reached to peak at 3 d after surgery,and then gradually decreased,IRI group Wnt4,β-catenin,Lrp6 mRNA were significantly higher than those in Control group and Sham group 1,3,5,7 d after surgery (P<0. 05). Conclusion: The expression of Wnt-β-catenin signal molecule are significantly increase in acute kidney injury,and the activation of Wnt-β-catenin signal pathway is involved in the repair process of renal tissue.

Objective To compare the effects of heat-sensitive moxibustion and ginger-partition moxibustion on refractory peripheral facial paralysis. Methods Fifty-five patients with refractory peripheral facial paralysis were randomized into heat-sensitive moxibustion group (N=28) and ginger-partition moxibustion group (N=27). For two cases dropped out during the treatment, a total of 25 cases were finally enrolled into the ginger-partition moxibustion group. Two groups received oral use of mecobalamin tablets and conventional acupuncture, and heat-sensitive moxibustion group was given heat-sensitive moxibustion and ginger-partition moxibustion group was given ginger-partition moxibustion additionally. The moxibustion was performed once a day and ten times constituted one course, the treatment covered 6 courses. The clinical effect of the two groups was evaluated by 40-score method, House-Brackmann facial neurological function evaluation standard, blink reflex ( BR) , electromyogram and electroneurography. Results ( 1) Symptoms integral was increased in both groups after treatment ( P<0.01) , and the scores of heat-sensitive moxibustion group were higher than those of ginger-partition moxibustion group ( P<0.01). ( 2) The markedly effective rate of heat-sensitive moxibustion group was 75.00% and that of ginger-partition moxibustion group was 44.00%, and there was statistically significant difference between them ( P<0.05). ( 3) The results of electrophysiological examination showed that the difference values of ipsilateral and contralateral BR R1, R2, R2’ in both groups after treatment were less than those before treatment ( P<0.01) , and the abnormal rate of electromyography for heat-sensitive moxibustion group was improved obviously after treatment ( P<0.01) . The amplitude of compound muscle action potentials ( CMAP) of orbicularis oculi/orbicularis oris at the affected side of both groups showed a decreasing trend, but the differences were insignificant between the two groups after treatment ( P>0.05). Conclusion The curative effect of heat-sensitive moxibustion for the treatment of refractory peripheral facial paralysis is better than that of ginger-partition moxibustion.

Objective 30 Pseudomonasaeruginosa mechanism of resistance to quinolones.Methods For the determination of ciprofloxacin MIC by agar dilution method.Used PCR on DNA gyrase and topoisomerase Ⅳ,resistance genes gyrA,gyrB, parC and parE were amplified,and BLAST,to determine whether there was resistance to bits mutation point;using pulsed-field gel electrophoresis (PFGE)of these 30 strains homology analysis.Results The 28 bacterial strains gyrA gene ampli-fied fragment of 137 points were C→T mutation causes T83I;17 strains gyrB gene amplified fragment of 351 G→C lead to G466A;parC gene amplification 21 bacteria fragment 277 point increase with C→U mutation causes S87L change two differ-ent strains parE gene locus C→U mutation A425V and A473V cause change.PFGE results:30 Pseudomonas aeruginosa could be divided into six clones,Aclone 4,B clone 7,C clone 3,D clone 14,and two other single clones.Conclusion The tar-get mutant strains closely related to the epidemic clone type,the same changes in the same pop-type strains of drug targets, and proportional to the level of ciprofloxacin MICs value,the more the number of mutated genes,MICs value higher.GyrA gene most prone to mutation,the mutation was also the first to be discovered,more than any other target of the mutation mutations on binding of drugs and targets that would be the focus of concern.

Objective Laboratory tests of yeast, with their disadvantages of long identification, complicated operation, and low positive rate, cannot meet the needsof rapid diagnosis and timely treatment.This studyinvestigated the feasibility ofapplying matrix-assisted laser desorption ionization-time of flight mass spectrometry ( MALDI-TOF-MS) in rapid identification and clinical isolationof yeast strains. Methods A total of 120 clinical non-repetitive isolates were collected from clinical culture samples and identified by MALDI-TOF-MS and VITEK 2-Compact/API, respectively.The discordant results were resolved by ITS gene sequencing. Results Of the 120 yeast isolates analyzed, 117 (97.5%) were correctly identified at the species level by MALDI-TOF-MS, 1(0.8%) misidenti-fied, and 2 ( 1.7%) unidentified.ITS gene sequencing of the 3 isolates showed the coincidence rate to be 0( 0/3) for MALDI-TOF-MS and Vitek 2-Compact/API. Conclusion MALDI-TOF-MScan be used as a rapid, accurate, and inexpensive tool for the identification of clinical yeast strains.

Objective To evaluate the role of Toll-like receptor 2/nuclear factor-κB(TLR2/NF-κB)signaling pathway pretreatment in ventilator-induced lung injury(VILI). Methods Thirty male Sprague-Dawley(SD)rats were randomly divided into three groups by using random number scale,with 10 rats in each group. Group A:rats were given 200μL of TLR2 monoclonal antibodies(TLR2mAb,10μg/kg)by slow instillation through tracheal catheter, and then ventilated with a high tidal volume(VT)of 40 mL/kg. Group B:ventilated with a normal VT of 8 mL/kg. Group C:rats were tracheally instilled with 10 μg/kg of TLR2mAb devoid of biologic activity,and then ventilated with a high VT of 40 mL/kg. The rats were mechanically ventilated for 4 hours,the lung wet to dry weight ratio(W/D)was calculated. The changes in pathology and ultrastructure in lung tissue were observed with microscope. Enzyme linked immunosorbent assay(ELISA)was performed to determine the concentration of interleukins(IL-1β,IL-6)and tumor necrosis factor-α(TNF-α)in serum and brconchoalveolar lavage fluid(BALF). Real-time fluorescent quantitation reverse transcription-polymerase chain reaction(RT-PCR)was used to assess the mRNA expressions of TLR2, NF-κB and myeloid differentiation factor 88(MyD88)in lung tissue. Results No obvious pathological changes in lungs were found in group A and group B,and no obvious damages to ultra-microstructure were found in lung macrophages, typeⅠepithelial cell and typeⅡepithelial cell. In group C,pathological changes were observed,including pulmonary alveoli fusion,alveoli septum thickening,inflammatory cells infiltration,and damages to ultrastructure of lung macrophage,damage to cell membrane of typeⅠepithelial cells and typeⅡepithelial cells,vacuoles in cytoplasm, damage to organelle,and even pyknosis and perinuclear cistern thickening. Compared with group C,W/D ratio and mean concentration of inflammatory cytokines in serum and BALF showed a significant decrease in group A and B〔W/D ratio:1.151±0.026,1.128±0.048 vs. 1.403±0.062;concentration of IL-1βin serum(ng/L):37.05±5.61, 34.52±4.31 vs. 51.45±8.18;concentration of IL-6 in serum(ng/L):53.65±5.16,55.77±5.62 vs. 89.96±7.08;concentration of TNF-αin serum(ng/L):71.93±13.29,67.36±11.42 vs. 96.20±11.60;concentration of IL-1βin BALF(ng/L):56.48±6.16,54.44±7.26 vs. 99.77±8.41;concentration of IL-6 in BALF(ng/L):172.44±21.26, 163.47±18.70 vs. 216.22±23.90;concentration of TNF-α in BALF(ng/L):235.81±42.75,231.72±40.38 vs. 374.85±69.61,all P<0.01〕,but there were no significant differences between group A and group B(all P>0.05). The mRNA expressions of TLR2,MyD88,and NF-κB were significantly decreased in group A and group B compared with those in group C〔TLR2 mRNA(2-ΔΔCt):1.021±0.287,0.938±0.196 vs. 3.862±0.871;MyD88 mRNA (2-ΔΔCt):1.235±0.277,1.300±0.306 vs. 3.618±1.107;NF-κB mRNA(2-ΔΔCt):0.519±0.036,1.043±0.170 vs. 20.280±9.466,P<0.05 or P<0.01〕,but there was no significant difference among the parameters mentioned above between group A and B(all P>0.05). Conclusion To some extent,pre-intervention with TLR2mAb to block the TLR2/NF-κB signal pathway can inhibit the release of pro-inflammatory factors,and regulate the VILI.

Objective To evaluate the changes in the expression of aquaporin 1 (AQP1) and aquaporin4 (AQP4) in lung tissues during one-lung ventilation in patients undergoing pulmonary lobectomy.Methods Forty ASA physical status Ⅰ or Ⅱ patients,aged 30-64 yr,weighing 45-79kg,undergoing pulmonary lobectomy,were randomly divided into 2 groups(n=20 each):two-lung ventilation group (group T) and one-lung ventilation group (group O).Anesthesia was induced with iv injection of midazolam,fentanyl,vecuronium and propofol.In group T,the patients were intubated with a single-lumen endotracheal tube and two-lung ventilation was performed.In group O,double-lumen endobranchial tube was inserted,and two-lung ventilation was performed followed by onelung ventilation after chest opening.PET CO2 was maintained at 5.3-24.0 kPa and SpO2 was maintained ＞ 92％.Anesthesia was maintained with iv infusion of remifentanil,propofol and vecuronium.The normal lung tissues were obtained from the site near the pathologic changes for microscopic examination (with light microscope) and examination of the ultrastructure (with transmission electron microscope),and for determination of W/D lung weight ratio,the expression of AQP1 mRNA and AQP4 mRNA (by RT-PCR) and the expression of AQP1 protein and AQP4 protein (by Western blot).Results Compared with group T,W/D lung weight ratio was significantly increased,the expression of AQP1 mRNA and protein was down-regulated in group O (P ＜ 0.05),and no significant changes were found in the expression of AQP4 mRNA and protein in group O (P ＞ 0.05).Pathological changes were observed in group O.Conclusion Down-regulation of AQP1 expression may be involved in the acute lung injury induced by one-lung ventilation in patients undergoing pulmonary lobectomy,however,AQP4 has no such effect.

AIM: To investigate the biological characterics of human second-trimester fetal cord blood mesenchymal stem cells (MSC) and its application prospects in utero gene transfer/therapy (IUGT). METHODS: Nuclear cells separated from cord blood were cultured in DMEM medium. Surface antigens of the MSC were analyzed by the FACScan flow cytometry. Adipogenic and osteogenic mediums were used to assess the differentiation ability of the cells. Adenovirus vector deliver green fluorescent protein gene (Ad-GFP) was used to transfected the MSC and the expressing of GFP was detected by fluorescent microscope. The MSC were injected into the liver of newborn rat. The immunofluorescence analysis was conducted to determine the presence of double-positive CD105+/CD166+ cells in different organs of rats. MSC were subcutaneous injected into the human-nonobese diabetes/severe combined immunodeficiency disease (NOD/SCID) mice and carcinogenesises of the MSC in vivo were detected by pathological diagnosis. RESULTS: MSC could be separated from fetal cord blood. These cells were uniformly positive for CD29, CD44, CD59, CD105, CD166 and negative for CD34, CD45, CD80, CD86, HLA-DR. The cells had the abilities to differentiate into adipogenic and osteogenic cells in vitro, expressed the GFP at high levels (56 32%?3 28%). The MSC were located at different organs after injected into the newborn rats and didn't have carcinogenicity in vivo. CONCLUSION: Human second-trimester fetal cord blood MSC is an promising target cells in fetal IUGT.

Objective To observe the clinical efficacy of Zhuang’s Moxibustion plus acupuncture in treating spastic paralysis due to craniocerebral injury.Method Ninety-two patients with spastic paralysis due to craniocerebral injury were randomized into a treatment group of 60 cases and a control group of 32 cases. The control group was intervened by conventional internal medicine and rehabilitation, while the treatment group was intervened by Zhuang’s moxibustion plus acupuncture in addition to the intervention given to the control group. The modified Ashworth Scale (MAS) was adopted to evaluate the clinical efficacy.Result The total effective rate was 75.0% in the treatment group versus 65.6% in the control group, and the between-group difference was statistically significant (P<0.01).Conclusion Zhuang’s moxibustion plus acupuncture is an effective approach in treating spastic paralysis due to craniocerebral injury.

Objective To explore the efficacy and safety of single or combine using radionuclide 89SrCl2/Yunke in cancer patients with bone metastasis. Methods Four hundred and one cancer patients with bone metas-tasis during 2012 Jan to 2016 Jan in Affiliated Tumor Hospital of Guangxi Medical University were included by a prospective study. According to different therapy ,these patients were randomly divided into three groups:radionu-clide 89SrCl2 group(n=111),Yunke group(n=130)and combined therapy group(n=160). The effect of pain relief and adverse reaction among three groups were compared after therapy. Results Compared with single using radionuclide 89SrCl2 or Yunke ,the cancer pain and bone metastasis in combined-using group were significantly re-lieved with effective rate of 91.25%and 98.75%respectively;the incidence of'pain shine'(11.7%),leucopenia (10.8%)and thrombocytopenia(6.3%)in combined-using group were both lower than single-using group. The ef-fective rate of cancer pain and bone metastasis relief ,and incidence of adverse reaction among single using radionu-clide 89SrCl2 or Yunke were similar. Conclusion Combined-using radionuclide 89SrCl2 and Yunke would effectively and safely relieve cancer with bone metastasis.

Objective To understand the current status of physical activity among urban school-aged children and its association with obesity.Methods 295 pupils,aged 9 to 13 years were selected,using the method of convenience sampling.Data on anthropometric measurements was collected,including weight and height.Questionnaire survey,clinic examination,dietary investigation of school lunch and surveillance on 7-day physical activity by pedometers,were done and Multi-linear regression was used to analyze the relationship between waist to height ratio (WHtR),fat mass percentage (FMP),body mass index (BMI) and physical activity.Single-variable and multiple non-conditional logistic regression modeling were applied to analyze data collected from obesity and physical activities.Results 15.5％ of boys and 13.1％ of girls reached 60 minutes per day of ‘ moderate-vigorous physical activities’.Compared with normal children,overweight/obesity children showed an increase of sedentary activity time,total energy expenditure,and energy expenditure of physical activity.With the increase of 1 hours daily on going to school by private car,WHtR and FMP increased by 0.01 and 2.06 units,respectively.FMP increased 0.89 units among with the increase of sedentary activity time,1 hour daily.BMI and the intake of leafy vegetables (eg.spinach,cabbage)showed a negative correlation.As the frequency of leafy vegetables consumption increased once weekly,BMI fell 0.10 units.After adjustment for sex and age,the risk of overweight/obesity was 3.82-fold (95％CI:1.17-12.47) among children who had sedentary activity time more than 120 min/ d,than those having less than 120 min/d.Conclusion Our data showed that children' s daily physical activity was not enough and measures should be taken to decrease the time of sedentary behavior and increase the energy expenditure through physical activities.