Objective:To investigate the effect of repetitive transcranial magnetic stimulation (rTMS) on cognitive function in patients with chronic schizophrenia.Methods:100 cases patients with chronic schizophrenia weree selected.They were divided into rTMS stimulation group and pseudo stimulation group according to the random number table method,and each group include 50 cases.The positive and Negative Syndrome Scale (PANSS) and the Treatment Emergent Symptom scale (TESS) were used to assess the clinical symptoms and side effects before and after the treatment;The Wisconsin Card Sorting Test (WCST) and Repeatable Neuropsychological State Measurement (RBANS) were used to assess the patients' cognitive function before and after treatment.Results:After treatment,the PANSS total score,the positive subscale score,the negative subscale score,the general psychopathological subscale score in the rTMS stimulation group were significantly reducing (P＜0.05),and significantly lower than those in the pseudo stimulation group (P＜0.05),but the TESS scores between the two groups did not differ significantly before and after treatment.The percentage of WCST in rTMS stimulation group was significantly higher than that in the pseudo stimulation group (P＜0.05),and the total time and wrong thinking time was shorter than that in the pseudo stimulation group (P＜0.05);The visual span and delayed memory performance of RBANS was significantly increased in the rTMS stimulation group (P＜0.05),and the visual span was significantly higher than that in the pseudo stimulus group (P＜0.05);There were 2 cases of patients with mild symptoms after the first treatment in RTMS stimulation group,all patients were without complaint followed up for 3 months.Conclusion:rTMS treatment on the part of the cognitive function of patients with chronic schizophrenia has a certain improvement effect,and higher security,it is worth further study.

Objective To study the effect of hypothermia on cerebral mitochondrial respiratory function and ultrastructure after traumatic brain injury(TBI). Methods Sprague-Dawley rats were subjected to moderate brain injury by using lateral fluid-percussion(LFP)and randomly divided into sham operation group,normothermic TBI group(rectal temperature for 36-37℃)and hypothermic TBI group(rectal temperature for 31-32℃ lasting for two hours).The ipsilateral brains were dissected and homogenized brain tissues were extracted to obtain mitochondfia by density-centrifugation and speed-centrifugation at 2,24 hours and at days 3 and 7 after TBI.The mitochondrial uhrastructure was studied by electron microscope.The indices of respiratory control rate(RCR)and P/O ratio of mitochondrial respiratory function were measured after oxygen consumption was determined with a Clark-type electrode.Results The mitochondrial uhrastructure of normothermic TBI group was damaged severely while that of hypothermic TBI group kept relatively integrated.The RCR and P/O ratio were markedly decreased two hours after TBI and reached the lowest level at the 24th hour(P＜0.01).At day 7,RCR kept at a lower level compared with sham operation group but P/O ratio recovered to normal.Change of RCR was similar in hypothermie TBI group and normothermic TBI group.However,RCR of the hypothermic TBI group was significantly higher than that of the normothermic TBI group within three days after TBI.In the meantime,P/O ratio recovered to normal three days after TBI. Conclusion Hypothermia can improve cerebral mitochondrial respiratory function and protect the mitochondrial structure after TBI.

Objective To investigate the effects of paravertebral injection of different concentrations of adriamycin on motor conduction function in rats. Methods Eighty healthy male Wistar rats weighing 250-300 gwere randomly divided into 4 groups (n = 20 each): 3 adriamycin groups receiving paravertebral injection of 0.3%, 0.5% and 1.0% adriamycin 10 μl respectively (group A1, A2, A3) and control group (group C)receiving equal volume of normal saline (NS) instead of adriamycin. The animals were anesthetized with intraperitoneal 3% pentobarbital 40 mg/kg. A right paramedian incision was made in the back from L3 to S1.L4,5,5,6 intervertebral foramina were exposed. 0.3%, 0.5% and 1.0% adriamycin and NS 10 pl were injected into the intervertebral foramina in group A1, A2, A3 and C respectively. Spinal motor evoked pontential (SMEP)was measured at 1, 2, 4 and 8 weeks (T1-4)after paravertebral injection. Results The latent period of SMEP was significantly prolonged and the amplitude decreased at T1-4 in group A3 as compared with group A1, A2 and C.Conclusion Paravertebral injection of 1.0% adriamycin can significantly depress motor conduction function.

Objective:To obtain recombinant Profilin of silkworm,identify its immunogenicity,predict its B cell epitopes and construct the evolutionary trees. Methods: The nucleotide sequence of Profilin was acquired from NCBI,synthesized it and cloned it into pET-28 vector. Then,the recombinant plasimids were transformed to E. coli BL21. After induced by IPTG,recombinant protein was purified by Affinity chromatography. Furtherly,its allergenicity was identified by Western blot,the potential B cell epitopes was analyzed through DNAStar and build the evolutionary trees by MEGA5. 05. Results: The recombinant protein of Profilin was successfully expressed and purified by affinity chromatography. Besides,the protein contains a high IgE-binding activity with IgE existing in serum of patients allergic to silkworm. Conclusion: The recombinant proflilin has IgE-binding activity, and it is meaningful for fundamental research and specific diagnosis studies of allergic diseases caused by silkworm.

To compare the effects of four different intensive insulin therapies on blood glucose control and vascular endothelial function in newly-diagnosed type 2 diabetes.Patients were randomly divided to accept pre-meal insulin aspart 30 or pre-meal insulin aspart and glargine at bedtime or pre-meal Novolin-R and NPH at bedtime or continuous subcutaneous insulin aspart infusion.Capillary blood glucose determination and continuous glucose monitoring system were carried out,therapeutic time and total insulin dosage were recorded.Ultrasound was used to evaluate the vascular endothelial function.Glucose level,incidence of low glucose,potency ratio of the four groups were similar( P＞0.05 ) ; FMD and NMD were not significantly improved ( P =0.718,P =0.065 ).The short-term efficacy and safety of the four groups are similar.The short-term intensive insulin therapy has no obvious effect on vascular endothelial function.

Objective To explore the efficacy of tigecycline combined with cefoperazone/sulbactam in the treatment of infections due to multiple drug resistant strains and pandrug-resistant acinetobacter baumannii, so as to guide the reasonable clinical medication.Methods A total of 16 cases of ventilator associated pneumonia caused by multiple drug resistant strains and pandrug-resistant acinetobacter baumannii treated in the First Hospital of Shijiazhuang from November 2012 to November 2014 were retrospectively analyzed, and the severity of the infection, clinical efficacy and mortality were observed.Results The multiple drug resistant strains and pandrugresistant acinetobacter baumannii were frequently detected in the 16 patients.Fifteen cases had been used other antibiotics before tigecycline, such as imipenem, cefoperazone/Shubatan, minocycline etc.The severity of underlying disease was assessed with the acute physiology and chronic health score(APACHE Ⅱ sore) within 24 h of admission, on the first day of tigecycline (TGC) therapy and after 7 days of TGC therapy.It showed that the average APACHE Ⅱ score were (25±6.0), (24.2±6.4) and (17.8±6.6) within 24 hours of admission(P＜0.01), on the first day of TGC therapy and after 7 days of TGC therapy.Thirty days after application of the TGC, the bacterial eradication rate was 56.25％ (9/16).The effective rate was 87.5％ (14/16).The failure rate was 12.5％ (2/16).Conclusion The effect of the tigecycline combined with cefoperazone/sulbactam on the clearance of the multiple drug resistant strains and pandrug-resistant acinetobacter baumanniiis is satisfied.

ObjectiveTo investigate the curative effect of neural stem cells (NSCs) transplantation combined with monosialotetrahexosyl ganglioside (GMi) in treatment of acute spinal cord injury in rats.MethodsCompressive spinal cord injury model at T8 segment was established in the adult SD rats that were then randomly divided into three groups, ie, control group, NSCs transplantation group and NSCs + GM1 group.Continuous observation was performed at 1,2, 4 and 8 weeks.Functional neurological recovery of the injured spinal cord was evaluated with motor function scale, pathology, transmission electron microscopy and somatosensory evoked potential (SEP).ResultsThe motor function of the lower extremities was recovered at different degrees in three groups.While the motor function recovery level of the animals and the positive staining cells of the calcitonin gene-related peptide (CGRP) in the NSCs + GM1 group were higher than those in the other two groups at 4 and 8 weeks (P ＜ 0.01).Compared with control group and NSCs group, focal necrosis and small vessel regeneration were observed only in the center of the injured segment in the NSCs + GM1 group at 8 weeks.Electron microscope scan showed edema under the membrane of the large myelin sheath in the control group, much intact myelin sheath, well-differentiated neurons and many kinds of synapse vesicles in the NSCs + GM1 group.The latent period of SEP was shortened markedly in the NSCs + GM1 group two weeks after transplantation (P ＜0.05).The latent period shortening was apparent in the NSCs group at 4 and 8 weeks after transplantation but was still longer than that in the control group.ConclusionsTransplantation of neural stem cells combined with use of GM1 can protect the nervous tissues after spinal cord injury, when GM1 reconstructs the spinal cord through promoting differentiation of the transplanted stem cells and linking with the host cells.

The non-neuronal cholinergic system, widely exists in prokaryotic, eukarytic, and even plant cells, however, it has not been investigated in preadipocytes and adipocytes. To search for evidence its existence in preadipocytes and adipocytes, the nicotinic acetylcholine receptor (nAChR) α7 subunit, acetyicholinesterase (ACHE) and choline acetyltransferase (CHAT) in 3T3-L1 cells were examined using immunohistochemical staining and Western blotting. The choline-regulated visfatin expression in 3T3-L1 preadipocytes was also tested by reverse transcriptase-PCR. Incubation with methyilycaconitine (10-6 to 10-4mol/L) for 12, 24 and 36 hours dose-dependently increased visfatin expression from 1.3- to 1.55-folds (P <0.01) with maximal induction at 24 hours with 10-4mol/L methyllycaconitine. Nicotine treatments (10-6 to 10-4 mol/L) for 12, 24 and 36 hours decreased visfatin expression; choline chloride (10-4 mol/L))suppressed visfatin expression in 3T3-L1 preadipocytes at 36 hours by 1.64 to 2.03 fold (P < 0.05) which was more effective as compared with nicotine. It was concluded that α7 nAChR was expressed in 3T3-L1 preadipocytes and involved in visfatin expression.

Objective To evaluate the effect of silencing ACAT1 gene on colon cancer cells proliferation,migration,invasion and colon cancer development by using the small interference RNA (siRNA) in colon cancer cell line HT-29.Methods Acyl coenzyme A cholesterol acyltransferase 1 (ACAT1) gene was silenced in HT-29 cell lines using Hiperfect transfection reagent.The expression level of ACAT1 was detected by real time PCR.CFSE and transwell assays were used to evaluate the effect of ACAT1 gene interfering on cells proliferation,mi gration and invasion.Result ACAT1 mRNA expression decreased obviously after siRNA interference.Compared with pre-transfection,proliferation,migration and invasion of colon cancer cells have been significantly inhibited (P ＜ 0.05).Conclusion ACAT1 gene interference reduced proliferation,migration and of invasion of HT29 cells,which provide a new potential target for colon cancer treatment.

OBJECTIVE:To evaluate the effects of PDCA cycle management on perioperative prophylactic application of antibiotics in typeⅠincision surgery of orthopedics department. METHODS:In retrospective analysis,512 discharge medical records, 861 ones and 1 070 ones were selected from our hospital before PDCA cycle management(Jan.-Dec. 2013,before intervention group), after first cycle of PDCA cycle management (Jan.-Dec. 2014,first intervention group) and after second cycle of PDCA cycle management(Jan.-Dec. 2015,second intervention group),respectively. The perioperative prophylactic application of antibiotics was analyzed comparatively before and after continuous intervention. RESULTS:After 2 cycles of PDCA cycle management intervention, the constituent ratio of internal fixation in orthopedics department increased significantly;utilization ratio of antibiotics,the rate of rational type,medication ratio 0.5-1 h before surgery,the rate of rational treatment course,the proportion of antibiotics use in accordance with indications increased from 50.20%,98.08%,93.77%,6.61%,82.10% to 58.41%,100%,99.04%,52.00%, 99.04%,respectively. The number of antibiotics type decreased from 4 to 2;the proportion of cephazolin increased significantly while that of clindamycin decreased significantly compared to before intervention. Postoperative prophylactic medication course decreased from(4.63 ± 2.42)d to(1.61 ± 0.75)d;the proportion of patients with medication course <24 h or ranged 24-48 h increased significantly, while those with medication course>72 h decreased significantly, with statistical significance (P<0.05). CONCLUSIONS:PDCA cycle management improves the rational rate of perioperative prophylactic application of antibiotics in typeⅠincision surgery of orthopedics department in our hospital. The prophylactic medication course of our hospital is not yet fully controlled within 24 h so it should be further intervened.