Objective To investigate the changes of phosphorylated CREB in spinal cord dorsal horn of rats underwent chronic compression of dorsal root ganglia (CCD) and effects of intrathecally administer NOS inhibitor L-NAME,AG or 7-NI and cGMP analogue 8-Br-cGMP on the expression of pCREB in dorsal horn and the changes in thermal hyperalgesia of rats.Methods 90 male adult Wistar rats were randomly divided into L-NAME,AG,8-Br-cGMP,7-NI,Cremophor and PBS groups.Different NOS inhibitors were injected intrathecally by microsyringe at the 5th day after CCD,the thermal paw withdrawal latencies were measured before injection and 0.5,2.0,6.0,12.0,24.0 h after treatment,the anti-nociceptive effects of agents were compared.The expression of pCREB was detected by immunohistochemical analysis 2 h after intrathecal injection.Results CCD significantly increased the expression of pCREB and pCREB positive neurons located in all laminae of bilateral spinal cord.The expression of pCREB in ispilateral and contralateral spinal cord showed no significant difference.Compared with PBS group,there was significant decreasing in number of pCREB positive neurons in L-NAME,AG and 7-NI groups(P

From the perspective of clinical doctors, in the teaching idea, national policy, school policies and different stages of clinicians cultivation , the article introduced the concept of translational medicine in the process of the clinical doctors tralning in the United States. It described US medical schools' (U.S. Virginia University School of medicine, for example) implementation ap-proach of translational medicine ideas in different stages, such as before entering school, during the period of school, practice exam and physician clinician tralning. It provided the reference for the de-velopment of translational medicine education in the process of China clinician education and tralning, including:medical students' integration into the related clinical research in preschool through volunteer service, the choice of multiple combination model of clinical science and basic research, interdisci-plinary examination of medical practitioners and the provisions of the research work in resident and specialist tralning stage.

BACKGROUND:Pueraria is a member of isoflavone characterizing by decreasing the toxic effects of alcohol,relieving the effect of alcohol withdrawal,anti-oxidative effect,removing oxygen free radicals,and preventing cell injury induced by lipid peroxidation.OBJECTIVE:To investigate the inhibitory effect of puerarin on adipogenic differentiation of alcohol-induced human bone marrow mesenchymal stem cells (hBMSCs).DESIGN,TIME AND SETTING:An in vitro observation based on cytology was performed at Laboratory of Biochemistry and Molecular Biology,Basic Medical College of Zhengzhou University in October 2008.MATERIALS:The bone marrow was taken from the adult healthy volunteers from the Department of Orthopedics of the First Affiliated Hospital of Zhengzhou University.Puerarin standard was provided by the National Institute for the Control of Pharmaceutical and Biological Products.METHODS:The primary hBMSCs were purified from the adult marrow by gradient centrifugation.The second passaged cells were divided into 3 groups.Blank control group:Cells were cultured with DMEM culture media containing 10% fetal bovine serum;Model group:Cells were cultured with 0.09 mol/L alcohol;Experimental group:Cells were cultured with 0.09 mol/L alcohol and 10-6 mol/L puerarin;while,the culture liquid was changed every two or three days.Cells were cultured for 7 days in each group.MAIN OUTCOME MEASURES:PPARγ 2 gene expression with RT-PCR;amount of adipocyte with oil red "O" staining;alkaline phosphatase activity.RESULTS:PPAR-γ2 mRNA expression in the model group was significantly greater than experimental group and blank control group (P ＜0.05),while the expression in the experimental group was slightly greater than blank control group,but there was no significant difference (P ＞0.05).The number of adipocytes was the most in the model group,and the lipid droplet was large and abundant.The number of adipocytes in the experimental group was significantly less than model group (P ＜ 0.05),and there were few adipocytes in the blank control group.Compared with blank control group,alkaline phosphatase activity was decreased in the model group (P＜0.05);but the activity in the experimental group was increased compared to model group (P ＜ 0.05).CONCLUSION:Puerarin inhibits differentiation of hBMSCs into adipocytes induced by alcohol.

Objective To investigate the clinical distribution and change in antimicrobial resistance of Acinetobact-er baumannii (A.baumannii)from a hospital between 2011 and 2013,so as to provide guidance for clinical treat-ment.Methods Sources and antimicrobial susceptibility testing results of A.baumannii from a hospital were ana-lyzed statistically.Results A total of 14 705 bacterial isolates were isolated in 2011 —2013,13.59%(n=1 999)of which were A.baumannii isolates,the percentage of A.baumannii in isolated pathogens in 3 years was 12.74%, 13.05%,and 14.85% respectively,which showed a rising trend (χ2 =9.458,P =0.002).The main specimen was sputum (n = 1 541 ,77.09%),bacteria were mainly isolated from patients in respiratory disease department (21 .71 %),surgical intensive care unit (16.26%),and emergency intensive care unit (8.26%).Antimicrobial re-sistance rates of A.baumannii increased year by year(all P <0.05);multidrug-resistant and extensively drug-resist-ant A.baumannii also increased year by year (all P <0.001).Conclusion Isolation rate and antimicrobial resistance rate of A.baumannii strains increase year by year,multidrug-resistant and extensively drug-resistant A.baumannii strains are obvious,which should be paid more attention in clinical department.

Aim To explore the effect of chemical hypoxia-mimetic agent,cobalt chloride(CoCl2)on inflammatory reaction in human keratinocytes(HaCat cells).Methods After HaCat cells were treated with CoCl2 at different concentrations to set up a chemical hypoxia-induced cell model of skin injury,cell viability,intracellular reactive oxygen species(ROS),mitochondrial membrane potential(MMP),the levels of both interleukin 6(IL-6)and interleukin 8(IL-8)as well as the expression of heme oxygenase-1(HO-1)were detected.Results The viability of HaCat cells was reduced by CoCl2 at the concentrations from 500 to 3 000 ?mol?L-1,and the higher CoCl2 doses,the lower cell viability was.CoCl2 induced oxidative stress reaction(increasing ROS production and decreasing MMP).CoCl2 induced inflammatory reaction,enhancing the release of IL-6 and IL-8.CoCl2 at concentrations from 1 000 to 3 000 ?mol?L-1 upregulated HO-1 expression in HaCat cells.Conclusion CoCl2 induces not only oxidative stress,but also inflammatory reaction,increasing the release of both IL-6 and IL-8,as well as HO-1 expression.

OBJECTIVE To describe the clinical features of the parapharyngeal space tumors and assess the postoperative complications and outcomes in our hospital.METHODS The clinical data of 135 cases with parapharyngeal space tumor treated from Jan.1995 to Dec.2005 in our hospital were retrospectively studied.RESULTS It included 24 heterogeneous histologies in this group.Neurogenic tumors(72.6 %) were the most common tumors,next were salivary gland tumors(15.6 %),and others 11.8 % tumors were miscellaneous tumors.There were 121(89.6 %) patients with benign lesions and 14(10.4 %) with malignant tumors.Transcervical approach was the most commonly applied route.Only 4 cases recurred in 113 operated benign patients.At end of the follow-up,of 14 patients with malignant tumors,4(28.6 %) were alive with no evidence of disease,5(35.7 %) were alive with disease,5(35.7 %) died of the diseases.CONCLUSION Primary parapharyngeal space neoplasms are rare and the majority of these tumors are benign.Surgery is the mainstay of treatment for parapharyngeal space tumors.Most benign cases with a low rate of complication and recurrence after operation,but malignant neoplasms have a poor prognosis.

Objective:To investigate the effect of miR-204 on the proliferation and differentiation of osteoblasts in osteoporosis mice by Wnt signaling pathway and its mechanism.Methods:Female Kunming mice were divided into: control group, sham operation group and osteoporosis group. Ovariectomy mouse models were established and identified by bilateral ovariectomy; Mouse primary osteoblasts were extracted and identified; Cells was transfected and detected the miR-204 expression levels; MTT was used to detect the viability of each group of cells; Alkaline phosphatase (ALP) activity was detected in each cell group; Cell flowmetry was used to detect apoptosis in each group; Cell flowmetry was used to detect the activity of Caspase-3 in each group of cells; Interaction between miR-204, β-catenin and LRP-5 was detected by dual luciferase reporter gene. Western blot was used to detect the expression of Wnt signaling pathway-related proteins.Results:The bone mineral density of the osteoporosis group was significantly lower than that of the control group and the sham operation group ( P=0.007, P=0.057) , indicating that the osteoporosis mice were successfully modeled; The expression level of miR-204 was significantly increased in the miR-204 mimics group ( P=0.007) , and decreased in the miR-204 inhibitor group ( P=0.031) ; The activity of bone cell and ALP activity of miR-204 mimics increased ( P=0.007, P=0.043) , and the activity of bone cell and ALP decreased by miR-204 inhibitor ( P=0.007, P=0.035) ; The invasive ability of miR-204 mimics was significantly increased ( P=0.006) , and the invasive ability of miR-204 inhibitor was decreased ( P=0.036) ; The apoptosis ability and Caspase-3 activity of miR-204 mimics were decreased ( P=0.041, P=0.045) , and the apoptosis ability and Caspase-3 activity of bone cells were enhanced by miR-204 inhibitor ( P=0.005, P=0.039) ; There were targeting relationship between miR-204 and β-catenin, LRP-5. The expressions of β-catenin and LRP-5 protein in osteoblasts of miR-204 mimics were up-regulated ( P=0.043, P=0.009) , and the expression of β-catenin and LRP-5 protein in bone cells of miR-204 inhibitor was down-regulated ( P=0.041, P=0.032) . Conclusion:miR-204 maybe promote the proliferation and differentiation of osteoblasts, activate Wnt signaling pathway, and has certain protective effect on osteoporosis.

Objective To assess the efficacy and side effects of intravesical instillation of BCG after transurethral resection of the bladder tumor (TURBT) in non-muscle invasive bladder cancer (NMIBC) patients.Methods The clinical data of patients treated with BCG 120 mg per course induced perfusion or more after TURBT from December 2013 to October 2016 in 18 hospitals of northeast China region,were analyzed retrospectively.The first part,data of 106 patients with moderate,high-risk NMIBC were collected.A total of 83 patients were male,while the other 23 patients were female.The average age was 66.7 years old.The clinical staging were T1 in 86(81.1％) cases,Ta in 20(18.9％) cases and carcinoma in situ in 6 (5.7％) patients.Intravesical instillation of BCG was executed after transurethral resection of the bladder tumor.The incidence rate of recurrence and progression during more than 6 months' follow-up time were observed.Multivariate analyses were done by using logistic analysis and Cox proportional hazards regression model with Kaplan-Meier method.The second part,treatment compliance of 276 patients with bladder cancer,including moderate/high-risk NMIBC in 263 cases,moderate/high-risk NMIBC followed with renal pelvis/ureteral carcinoma in 8 cases were and moderate/high-risk NMIBC with renal pelvis/ureteral carcinoma in 5 cases who treated with BCG after the surgeries,were observed.Patients consisted of 211 males and 65 females with average age of 68.3 years.Results With a median follow-up of 12 months,9 (8.5％) patients experienced tumor recurrence and 2 (1.9％) patients were found progression in the first part.The one-year cancer free recurrence rate of the patients was 91.5％.Statistically significant prognostic factors for recurrence identified by multivariable analyses were prior recurrence of the tumors (OR =3.214,95％CI0.804-12.845,P =0.099).In the second port,an incidence rate of adverse effects was 64.1％ (177/276).The Ⅲ/Ⅳ degree complications were occurred in 11 patients and satisfactory outcomes achieved with active treatment.A total of 36 patients withdrawal with the major causes were recurrence and progression of bladder tumor in 12 cases (4.4 ％),9 cases (3.3 ％) with economic reasons and 11 cases (4.0％) with serious complications.Conclusions NMIBC patients treated with intravesical BCG therapy have approving cancer free recurrence rates and acceptable adverse effects.Prior recurrence may be prognostic factor of recurrence after intravesical BCG therapy.

Objective:To establish autoverification rules for coagulation tests in multicenter cooperative units, in order to reduce workload for manual review of suspected results and shorten turnaround time (TAT) of test reports, while ensure the accuracy of results.Methods:A total of 14 394 blood samples were collected from fourteen hospitals during December 2019 to March 2020. These samples included: Rules Establishment Group 11 230 cases, including 1 182 cases for Delta check rules; Rules Validation Group 3 164 cases, including 487cases for Delta check; Clinical Application Trial Group 77 269 cases. Samples were analyzed for coagulation tests using Sysmex CS series automatic coagulation analyzers, and the clinical information, instrument parameters, test results, clinical diagnosis, medication history of anticoagulant and other relative results such as HCT, TG, TBIL, DBIL were summarized; on the basis of historical data, the 2.5 and 97.5 percentile of all data arranged from low to high were initially accumulated; on the basis of clinical suggestions, critical values and specific drug use as well as relative guidelines, autoverification rules and limits were established.The rules were then input into middleware, in which Stage I/Stage II validation was done. Positive coincidence, negative coincidence, false negative, false positive, autoverification pass rate, passing accuracy (coincidence of autoverification and manual verification) were calculated. Autoverification rules underwent trial application in coagulation results reports.Results:(1) The autoverification algorisms involve 33 rules regarding PT/INR, APTT, FBG, D-dimer, FDP,Delta check, reaction curve and sample abnormalities; (2)Autoverification Establishment Group showed autoverification pass rate was 68.42% (7 684/11 230), the false negative rate was 0%(0/11230), coincidence of autoverification and manual verification was 98.51%(11 063/11 230), in which positive coincidence and negative coincidence were respectively 30.09% (3 379/11 230) and 68.42%(7 684/11 230); Autoverification Validation Group showed autoverification pass rate was 60.37%(1 910/3 164), the false negative rate was 0%(0/11 230), coincidence of autoverification and manual verification was 97.79%(3 094/3 164), in which positive coincidence and negative coincidence were respectively 37.42%(1 184/3 164) and 60.37%(1 910/3 164); (3) Trialed implementation of these autoverification rules on 77 269 coagulation samples showed that the average TAT shortened by 8.5 min-83.1 min.Conclusions:This study established 33 autoverification rules in coagulation tests. Validation showedthese rules could ensure test quality while shortening TAT and lighten manual workload.