72 h goups, respectively. A few tissues distant from the hematoma on the way into the cranium were taken from the 2 former groups as control. Immunohistochemistry staining and reverse transcription polymerase chain reaction (RT-PCR) were used to detected expression of complement facters C3 ,complement inhibitor (Clusterin),the infiltration of the inflammatory cells, the proliferation of neuroglia cells and the expression of cytokins.Results The immunohistochemistry staining showed that the expression of complement facter C3 got to the peak at 12~72 h (P

Objective Non-small-cell lung cancer with ipsilateral mediastinal lymph node metastasis (N2) belongs to heterogeneous subgroup. We analyzed the prognosis of patients with resected N2 NSCLC to determine the clinical significance. Methods The present study comprised 146 consecutive patients whom underwent surgical resection of N2 NSCLC between January 1997 and January 2000. Histological type, location, T primary tumor status, operation mode, clinical N2 (cN2) factor, N2 level(single or multiple), number of positive nodes(N2-num), and the cycles of adjuvant chemotherapy were estimated from the date of operation using the Kaplan-Meier and Log Rank analysis. The Cox regression model evaluated the influence of factors on the survival. Results The 3-and 5-year survival rate of these N2 NSCLC patients were 19.86% and 14.56%, respectively. The patients with tumor in the right lower lobe showed a significantly longer survival than left lobes. The histological type, tumor location, cN2 factor, N2 level and N2-number were associated with survival. A multivariate analysis using Cox regression identified 4 factors of prognosis: tumor site, T status, N2 level and clinical N2 status. Conclusion This article has identified N2 NSCLC subgroups and found that patients with mN2, N2L1 and single N2 have better prognosis.

This paper summerized the surgical treatment of primary bronchogenic carcinoma in 3568 cases between 1957-1991. The resectability rate was 90. 3%, postoperative morbidity rate 8.32% and operative mortality 0. 89%. Pathological diagnoses of the resected specimens included squa-mous cell carcinoma for 48.7%, adenocarcinoma 22.9%, small cell cancer 15. 4%, large cell cancer 1. 3% and squa-mous-adenocarcinoma in 10.1%. The follow-up rate was 93%. The 5-and 10-year survival rates were 34.6% and 22.79% respectively. Analyses of the data demonstratad that the histologic type, pathological stage and metastasis of mediastinal lymph node are the important factors affecting the prognosis. According to UICC P-TNM,42. 6% of the patients in this group were in stage III. The 5 year survival rate was 19% in IIIa patients and 6% in IIIb. According to authors experience, it is recommended that in IIIa patients with nonsmall cell cardinoma, active surgical treatment should be adopted; in patients with small cell carcinoma, chemotherapy and radiotherapy should be given pre-and postoperatively, in IIIb patients with small cell carcinoma, surgical treatment is generally not indicated.

To improve the expression level of non fusion hbFGF in E coli , the coding sequence of human bFGF gene, which had been cloned from primarily cultured human fibroblast, was mutated according to the principle of lowering the GC content and increasing the codon preference After being ligated into pET 3c and transformed into BL21(DE3), the recombinant induced by IPTG Expression level was up to 30% of the total bacterial protein The result indicated that optimizing of the TIR would promote the expression level of recombinant protein

Objective To compare the characteristics of post-stroke depression in patients with and without aphasia.Methods Seventy patients on the first infarction with aphasia and 70 stroke patients without aphasia were recruited.The aphasia deficits in patients were evaluated by using the Aphasia Battery of Chinese ( Aphasia Battery of Chinese, ABC) .The Stroke Aphasic Depression Questionnaire Hospital Version ( Stroke Aphasic Depression Questionnaire Hospital Version, SADQ-H) was applied to analyze the depression in the two groups.Results The sore in SADQ-H of the aphasia group was significantly higher than the control group( (22.03 ±9.55 )vs ( 16.81 ± 10.47 ), P ＜ 0.01 ) .Loss interest, anhedonia, social avoidance, irritability, depression, decreased attention were more serious in patients with aphasia after stroke than that without aphasia.Compared with control group ,the incidence of depression in aphasia group was higher(64.28% vs 50.00% ).The incidence in different types of aphasia: the complete aphasia ( 78.26% ), transcortical mixed aphasia ( 62.50% ), Broca ( 61.53% ),Werincke (62.50%).There was significantly correlation between the incidence of depression and the severity of aphasia.Conclusion The incidence of depression in stroke patients with aphasia is high,especially who have complete aphasia, transcortical mixed aphasia, Broca and Werincke, and it closely relate to the severity of aphasia.

Objective To preliminarily investigate the cutoff value of Stroke Aphasic Depression Questionnaire Hospital Version (SADQ-H) in the diagnosis of post-stroke depression. Methods Using receiver operating characteristic (ROC) curves, the total scores of 17-item Hamilton Depression Rating Scale (HAMD-17) greater than 7 points and Beck Depression Inventory (BDI-13) greater than 4 points were taken as the cutoff values for the assessment of depression. SADQ-H for the assessment of the depression classification standard in patients with post-stroke aphasia was investigated preliminarily by HAMD-17 (8-17 were mild depression; 18-24 were moderate depression, and＞24 was severe depression). Results When HAMD-17 was used as a standard, ROC area under curve (AUC) was 0. 909 (95% confidence interval [CI] 0.814-1.005). When 19.50 was used as a cutoff value, the sensitivity, specificity, positive predictive value, negative predictive value, and κ coefficient of SADQ-H were 82. 6%,91.7%, 87. 0%, 83.3%, and 0. 77, respectively. When BDI-13 was used as a standard, ROC AUC was 0. 916 (95% CI 0. 824-1. 008). When choosing 18.50 as a cutoff value of diagnosis,the sensitivity, specificity, positive predictive value, negative predictive value, and κ coefficient of SADQ-H were 80. 0%, 90. 0%, 84. 0%, 90. 0%, and 0. 68, respectively. The classification standards of SADQ-H for the assessment of depression in patients with post-stroke aphasia were 19, 22 and 26 points. Conclusions When the cutoff value of SADQ-H was 19 points, it had higher sensitivity, specificity, positive predictive value and negative predictive value for the assessment of depression; 19, 22 and 26 points could be used as the classification diagnostic standard of SADQ-H in the assessment of depression in patients with post-stroke aphasia.

Objective:To investigate the neuropsychological characteristics of Chinese agraphia caused by basal ganglia(BG)infarction.Methods:The writing abilities of 40 patients with BG infarction were detected by Chinese agraphia battery(CAB),and all the writing scores and agraphia quotient were calculated.The head CT/MRI images in agraphia and non-agraphia groups were standardized,the infarction were revealed and the superposition of two-dimensional arrays were performed,so that the central tendency of infarction was visually displayed.Results: Among the 40 patients,21 had left BG infraction,and 17 had agraphia;19 had right BG infraction,and 4 had agraphia.The two-dimensional superimposing neuroimages showed that BG infarctions caused agraphia was mostly in the left BG,including the left putamen,the head and body of the caudate nucleus,but there were fewer infarctions in the right putamen and the body of the candate nucleus.BG infarction caused agraphia was mostly aphasic agraphia,which was characterized by the orthographic disorders,paragraphia,and grammar mistakes.Conclusions: BG infarction may result in aphasic agraphia,which suggested that BG is involed in writing and processing,and it is the subcortical center of this advanced neurofunction in writing.

Objective To investigate the clinical features and influencing factors of somatic symptoms in patients with acute stroke.Methods Patients with acute stroke were enrolled in the study.Using the scores of symptom checklist 90 (SCL-90)-somatization factor part,the patients were divided into either a somatic symptom group (≥24) or a control group (＜24).Their age,gender,economic level,education level,underlying diseases,Hamilton Anxiety Scale (HAMA),Hamilton Depression Scale (HAMD),NEO Five-Factor Inventory scores,Social Support Rating Scale scores-simplified Chinese version,Mini-Mental StateExamination (MMSE) scores,National Institute of Health Stroke Scale (NIHSS) scores were documented and analyzed.Results A total of 70 patients with acute stroke were enrolled,and 33 (47.1％) of them had somatic symptoms.There were no significant differences in demographic characteristics,education level,family income,occupation,marital status,living alone,residence,medical expenses payment methods and social support scores between the somatic symptom group and the control group.There were also no significant differences in the types of stroke,lesion side,baseline NIHSS score,MMSE score,and NEO Five-Factor Inventory score between the 2 groups.There was significant difference in lesion side between the somatic symptom group and the control group (x2 =0.161,P=0.006).The comparison of neuropsychological test results showed that the proportion of patients with an anxiety state of the somatic symptom group was significantly higher than that of the control group (24.2％ vs.5.4％;x2 =5.055,P =0.025),but there was no significant difference in the proportion of patients with depression status;after excluding the cases who met the anxiety and depression criteria,HAMA (8.08 ± 3.12 vs.5.58 ± 3.06;t =-3.059,P =0.003) and HAMD (10.80 ± 4.81 vs.7.73 ± 3.88;t =-2.694,P =0.009) scores of the somatic symptom group (n =25) were significantly higher than those of the control group (n =33).The number of somatic symptoms of the somatic symptom group was significantly more than that of the control group (Z =-5.817,P ＜ 0.001),and was more likely to have pain symptoms (97.0％ vs.73.0％;x2 =7.584,P =0.006).The correlation analysis showed that there was a significant positive correlation in the 12-item scores of the SCL-90 somatic factors and HAMA (r =0.494,P ＜0.001) and HAMD (r=0.369,P=0.002) scores in patients.Multivariate logistic regression analysis showed that HAMA score was an independent risk factor for somatic symptoms after stroke.(odds ratio 1.286,95％ confidence interval 1.060-1.560;P=0.011).Conclusions The incidence of somatic symptoms is high after acute stroke,especially in patients with cortical stroke.The somatic patients after stroke are prone to have pain-related symptoms.The patients with anxiety and depression status after stroke are prone to have somatic symptoms after stroke;HAMA score is an independent risk factor for having somatic symptoms after stroke.

0.05,X 2 =0.45),and the focus stability ratio were42.5%and32.4%respectively.Compared with the FOLFOX4group,the hospitalization course in capecitabine group is significantly shorter(8.5days vs25.3days,P=0.000)and the total medical cost was significantly lower(5941.7RMB vs13304.6RMB,P=0.001).The cost structure analysis showed that the direct and indirect medical costs of the FOLFOX4group increased more significantly(P=0.001)and the incidence for adverse effects of this group was lower than that of the capecitabine group.CONCLUSION:From the perspective of pharmacoeconomic evaluation,capecitabine is better than FOLFOX4in treating the digestive malignant tumor.

A magnetic extraction sorbent based on Fe3 O4@poly ( methacrylic acid-co-ethylene dimethacrylate) ( Fe3 O4@MAED ) was synthesized using methacrylic acid and ethylene dimethacrylate as monomer and cross-linker, respectively. The magnetic sorbent was characterized by FTIR spectroscopy, elemental analysis and transmission electron microscopy. At the same time, the Fe3 O4@MAED was used to extract four benzoylurea pesticides in water and juice samples under magnetic dispersive solid phase microextraction ( MDSPME ) format. To obtain the optimal extraction conditions, several parameters, including the amount of sorbent, desorption solvent, extraction and desorption time, pH value, and ionic strength in sample matrix were investigated. Based on this, a fast, simple and sensitive method for the determination of benzoylurea pesticides in water and juice samples was developed by the combination of MDSPME with HPLC equipped with diode array detector. Under the optimized experimental conditions, the developed method possessed expected linear dynamic ranges, coefficients of correlation ( R2>0. 99 ) and sensitivity. The limits of detection (S/N=3) for target analytes were 0. 10-0. 19 μg/L in water and 0. 12-0. 30 μg/L in juice, respectively. The RSDs for intra-day were less than 7% and inter-day RSDs were less than 11%. The developed method was successfully applied to the determination of benzoylurea pesticides residues in water and juice samples and the recoveries of spiked target compounds were in the range of 69. 4%-118. 0%. The results demonstrated that the Fe3 O4@ MAED could extract benzoylurea pesticides effectively through multi-interactions including hydrophobic, hydrogen-bond and ion-exchange interactions between sorbent and analytes.