Objective To investigate the expression of vascular endothelial growth factor (VEGF) and Bax in non‐small cell lung cancer (NSCLC) and clinical value .Methods Paraffin specimens were collected from 80 cases of NSCLC tissues(NSCLC group) and 20 cases of normal lung tissue adjacent to benign lesions(control group) .Western blot and immunohistochemistry were used to dectect the expression of VEGF and Bax .The relationship of the expression of VEGF and Bax with histological classifica‐tion ,stage ,lymph mode metastasis were analyzed .Results The expression of VEGF in NSCLC group was higher than that in con‐trol group ,the differences were statistically significant (P<0 .05) .The higher expression of VEGF in the group of stage Ⅲ‐Ⅳ was obtained than that in the group of stage Ⅰ‐Ⅱ (P<0 .05) .The higher expression of VEGF in the group with lymph mode metasta‐sis was obtained than that in the group without lymph mode metastasis (P<0 .05) .The expression of VEGF was not found to be related with histological classification (P>0 .05) .The expression of Bax in NSCLC tissue was lower than that in normal tissue ,the differences was statistically significant (P<0 .05) .The lower expression of Bax in the group of stage Ⅲ‐Ⅳ was obtained than that in the group of stage Ⅰ‐Ⅱ (P<0 .05) .The lower expression of Bax in the group with lymph mode metastasis was obtained than that in the group without lymph mode metastasis (P<0 .05) .The expression of Bax was not found to be related with histological classification (P>0 .05) .The expression of VEGF was negatively correlated with Bax in NSCLC (P<0 .05) .Conclusion The ex‐pression of VEGF played a promoting effect in the NSCLC ,and was negatively correlated with the expression of Bax protein ,and the expression of the two could provide a basis for the diagnosis and prognosis of NSCLC .

Objective To observe the pathological changes of esophageal carcinoma after preoperative radiotherapy. Methods A total of 28 thoracic esophageal carcinoma patients treated with surgery following preoperative radiotherapy of 40 Gy (S+R group), and other 28 patients treated with surgery alone (S group) were studied. The pathological changes of the resected samples of these patients were analyzed and compared. In all of the cases, the tumor regression rate, infiltration depth of tumor cells, involvement rate of blood vessels and lymphatic vessels, and metastasis rate of lymph nodes and residual lesions were studied. Results The tumor regression rate in S+R group was significantly higher than that in S group, but the infiltration depth of tumor cells and involvement rate of blood vessels and lymphatic vessels in S+R group were significantly lower than those in S group. The stromal reaction in S+R group was stronger than that in S group. There was no significant difference in metastasis positive rate of lymph nodes and residual lesions between the two groups. Conclusion Preoperative radiotherapy has obvious effect on the treatment of esophageal carcinoma from the view of pathological changes. However, further studies should be conducted on whether the pathological changes mean the improvement of survival rate or not.

OBJECTIVE:To study the stability of omeprazole sodium solution for injection under the influence of metal ion calcium and magnesium.METHODS:HPLC was adopted to determine the variation of the content of omeprazole sodium solution acted by metal ion calcium and magnesium of different concentrations in different time.The change in colour and luster was also observed.RESULTS:Omeprazole sodium solution tended to disintegrate rapidly along with the prolonging of time,and increase with the increasing of concentration;when Mg2+ was added,change in color was seen,with no degradation substance produced;when Ca2+was added,change in color was also seen,with white deposit produced.CONCLUSION:Ca2+ and Mg2+ show significant influence on the stability of omeprazole sodium solution.

Objective To investigate the effects of N-acetylcysteine (NAC) pretreatment on the liver function and mRNA and protein expressions of nuclear factor-KB (NF-KB) in brain-dead BA-Ma mini pigs. Methods The brain-dead model was established by increasing intracranial pressure by a modi-fied, slow and intermittent way. A total of 15 BA-Ma mini pigs were randomly and equally divided into three groups (five in each group), ie, control group (Group C) : treated only with opening and closing abdomen after anesthesia; group without NAC treatment (group B): brain-dead models without use of NAC; NAC treatment group (Group N): 1 and 12 hours after establishment of brain-dead models, 200 mg/kg NAC was added into 100 ml normal saline and intravenously transfused. Levels of ALT and AST in serum as well as TNF-α, IL-1β and IL-6 were determined at 3,6,12, 18,24 hours after brain death. The changes of liver tissues were observed by HE staining under a light microscope, the uhrastruc-rural changes of liver tissues observed under electron microscope, the expression of NF-KB detected by immnohistochemistry and change of NF-KB mRNA by RT-PCR. Results (1) Compared with Group C, serum ALT and AST began to increase at 12 hours after brain death, but IL-1β, IL-6 and TNF-α be-gan to increase three hours after brain death in Groups B and N. mRNA and protein expressions of NF-KB in Groups B and N began to increase six hours after brain death, when Group B increased more sharply than Group N, with statistical difference (P<0.05). (2) At 12 hours after brain death, injury of liver cells in Group B was severer than that in Group N. Conclusion NAC can inhibit the mRNA and pro-tein expressions of NF-KB, decrease the release of inflammatory factors and hence protect the hepatic structure and function during brain death.

Objective To built up the ERP model,measure mode and P300 potential reference standard in mice with vascular dementia(VD),and characterize the P300 potential in mice with VD.Methods Fortyeight mice were randomly divided into a normal group.sham operation group and a VD group.The mice in the Vd group were subject to repetitive ischemia and reperfusion by using the ligation of bilateral common carotid arteries so as to establish the VD model.The behavioral abnormalities were investigated by step-down test and water maze test.The N2 and P3 components of P300 potentials were also recorded.Results It was shown that the learning and memory abilities as reflected by the step down test and water maze test scores were decrease in mice in the VD group when compared with those in the normal group and sham operation group(P<0.05).The N2 and P3 latencies significantly prolonged(P<0.01)and P3 amplitudes decreased(P<0.05)in VD group as well.Conclusions In VD mice,there is a significant prolongation of the P300 potential latency and a significant decrease of learning and memory abilities.Recordings of P300 from unanesthetized mice could be an objective,non-invasive,quantitative and valuable electrophysiological method for studying the cognitive function of VD mice.

ObjectiveTo explore the value of virtual touch tissue quantification (VTQ) in evaluating Lauren classification of advanced gastric carcinoma.MethodsForty-one patients with gastric cancer proved by endoscopic biopsy performed preoperative VTQ examination,and the findings were compared with postoperative pathologic results via hematoxylin -eosin and Alcian Blue-Periodic Acid Schiff (AB-PAS) staining.ResultsIn 41 patients,26 cases were diagnosed as diffuse type and 15 cases as intestinal type by pathology after operation.The shear wave velocity(SWV) of diffuse type was higher than that of intestinal type [(1.72± 0.83)m/s vs (1.05± 0.66)m/s,t =2.819,P=0.008] measured by virtual touch tissue quantification (VTQ).According to the area under the ROC curve,the cut- off value of SWV in gastric cancer tissues for assessing the diffuse type was 1.045 m/s with a sensitivity of 80.8％ and specificity of 73.3 ％ respectively.ConclusionsVTQ could be considered as a promising method to distinguish the Lauren classification in patients with advanced gastric carcinoma.

Objective:To explore the correlation among serum levels of resistin ,oxidized low density lipoprotein (ox‐LDL) ,high sensitive C reactive protein (hsCRP) and severity of acute ischemic cerebrovascular diseases .Methods :A total of 92 patients with acute ischemic cerebrovascular diseases ,who were treated in our hospital from Nov 2013 to Nov 2014 ,were selected ,including 36 cases with transient ischemic attack (TIA ,TIA group) ,29 cases with re‐versible ischemic brain damage (RIBD ,RIBD group) and 27 cases with focal cerebral infarction (FCI ,FCI group) . Another 70 healthy volunteers were regarded as normal control group .Serum levels of resistin ,ox‐LDL and hsCRP were measured and compared among all groups .Pearson correlation analysis was used to analyze the correlation a‐mong serum levels of resistin , ox‐LDL , hsCRP and severity of acute ischemic cerebrovascular diseases . Results:Compared with normal control group ,there were significant rise in serum levels of resistin [ (0.26 ± 0.42)μg/L vs . (0.63 ± 0.38)μg/L vs .(0.91 ± 0.45)μg/L ,(0.89 ± 0.42)μg/L] ,ox‐LDL [ (334.3 ± 142.5) mg/L vs .(451.7 ± 15.8) mg/L vs .(518.3 ± 205.7) mg/L ,(520.7 ± 198.9) mg/L] and hsCRP [ (5.8 ± 4.9) mg/L vs .(8.7 ± 7.6) mg/L vs .(13.5± 9.1) mg/L ,(13.6 ± 7.4) mg/L] in TIA group ,RIBD group and FCI group (P< 0.01 all);those of RIBD group and FCI group were higher than that of TIA group (P<0.01 all) ,and there were no signifi‐cant difference in above indexes between RIBD group and FCI group (P>0.05 all) .Pearson correlation analysis in‐dicated that serum levels of resistin , ox‐LDL and hsCRP were significant positively correlated with severity of acute ischemic cerebovascular disease (r=0.473~0.902 , P<0.01 all) .Conclusion:Serum levels of resistin ,ox‐LDL and hsCRP can reflect severity of acute ischemic cerebrovascular diseases ,which is worth extending .

Objective To assess the effectiveness of donepezil versus huperzine in the treatment of elderly patients with mild cognitive impairment (MCI).Methods Total 122 elderly patients with MCI were divided into two groups:donepezil treatment (5.0 mg once daily) (n=71) and huperzine treatment group (0.1 mg twice daily) (n=51).All the patients were followed up for 24 weeks.Before and 12 weeks,24 weeks after drug treatment,the cognitive functions were evaluated,including MMSE,MOCA,ADAS-cog,CDR,GDS,ADL,HIS and HAMD.Results There was no significant difference in age,sex,education time and neuropsychology rating scales between the groups before drug use.As compared with the score before drug use,the donepezil group showed a significant increase in MMSE after 12-weeks (t=4.47) or 24-weeks (t=6.16) (P＜0.01),a decrease in the score of ADAS-cog after 12-weeks (t=2.33,P＜0.05) or 24-weeks( t=3.68,P＜0.05),and an increase in the score of MOCA after 24-weeks drug use (t=2.56,P＜0.05).The huperzine group showed significant improvement in MMSE after 24-weeks drug use (t=2.80,P＜0.05),but there was no difference in other time points or in the score of MOCA and ADAS-cog as compared with the score before drug use.After 24 weeks' treatment,the donepezil group had higher MMSE (t=2.01,P＜0.05) and lower ADAS-cog (t=2.09,P＜0.05) scores than the huperzine group.30 patients (total effective rate was 42.3 ％) and 9 patients (total effective rate was 17.6 ％ ) became improved in donepezil and huperzine group,respectively,with significant difference (x2 =8.26,P＜0.01 ).There were 5 cases in the donepezil group and 3 cases in the huperzine group getting slight side-effects which disappeared by continuing to take drugs or by adjusting drug taking time.Conclusions Donepezil and huperzine as the cholinesterase inhibitors are effective and safe,and the efficacy of donepezil is faster and better in treating elderly patients with MCI.

Objective This study is to summarize the experience of microsurgical reconstruction for donor liver anatomical variations of hepatic arteries in orthotopic liver transplantation. Methods During the bench surgery, the anatomy of donors′ hepatic arteries was carefully examined and microsurgical techniques were used for the anomalous arteries. The graft arterial flow was checked by Doppler ultrasound daily in the first week in postoperative period and periodically thereafter. Results The arterial anatomy was anomalousin 20 out of 141 (14%) donor livers. Nine cases (6.3%) needed arterial reconstruction. In these cases, 7(4.9%) aberrant right hepatic arteries originating from superior mesenteric artery were anastomosed to gastro-duodenal arteries and another two aberrant hepatic left or right arteries were anastomosed to the stump of the donor splenic arteries. Conclusions The variations of hepatic arteries in donors are common. To obtain the ideal arterial supply of liver graft, both careful checking on the origin of donor's artery and appropriate plastic performance with refined microsurgical techniques are necessary.

Objective This study was conducted to measure the mandibular incisive canal (MIC) by cone beam computed tomography(CBCT)and to assess 3?dimensional structure, course and adjacent structure of the MIC , in order to ensure safe region for surgery of the mandibular interforaminal area. Methods A total of the CBCT images from 83 patients were studied and measured. The detection rates of MIC were calculated The diameter of the MIC and the distances from MIC to the labial and lingual cortices and the inferior border of the mandible and tooth tips were measured at canines and lateral incisors. Results MIC was found in 67.8%of the patients. In the position of canine, the diameter of MIC, the mean distance of the MIC to the tips of the teeth, to the buccal border of the mandible , to the lingual border of the mandible and the inferior border of the mandible were (1.3±0.4), (8.9±2.9), (4.3±0.9), (5.2±1.1) and (8.6± 1.5) mm, respectively. In the position of the incisor, the distance of MIC, the mean distance of the MIC to the tips of the teeth, to the buccal border of the mandible , to the lingual border of the mandible and the inferior border of the mandible were (1.0 ± 0.3), (13.3 ± 4.0), (4.2 ± 0.9), (5.9 ± 0.9) and (8.9 ± 1.8) mm, respectively. Conclusion CBCT clearly show three dimensional structure, course and adjacent structure of the MIC. Preoperative CBCT can provide vital information for surgery of the mandibular interforaminal area.