Reperfusion therapies(thrombolysis,mechanical thrombectomy,or stenting,etc.) for acute ischemic stroke are the most effective therapy.Reperfusion therapy may limit ischemic tissue enlargement,leading to a reduced infarct size and favorable clinical outcome by restoring the blood flow before the salvageable penumbra became the progress of ischemic brain infarction.intravenous (IV) recombinant tissue plasminogen activator (rt-PA) therapy is the only proven effective treatment of acute ischemic stroke.Although thrombolytic therapy has matured,but the standard intravenous thrombolytic therapy (non-enhanced computed tomography (CT)-guided,3 h time window,the intravenous injection of tPA) have many restrictions,including a short therapeutic time window,recanalization rate was only 50 %,and the major dangers of symptomatic hemorrhagic transformation.As a result,currently in clinical practice,only a minority of patients (usually 1% to 3%) received thrombolytic therapy.So there are some issues still need to be further explored,such as the expansion of thrombolytic time window,a new thrombolytic drugs are used for more than 3h incidence of acute ischemic stroke patients,the evaluation of new reperfusion methods (in particular,multi-modal imaging technology),intravenous,and intra-arterial thrombolysis combined application of thrombolytic therapy,and new anti-platelet drug combination,and the application of mechanical devices or by transcranial Doppler ultrasound to promote the role of thrombolytic drugs.

Objective To explore influence factors of gerontal patients with lung squamous carcinoma after surgical therapy . Methods 210 gerontal patients with lung squamous carcinoma were accepted surgical therapy and adjuvant therapy ,and were fol-lowed up .The survival rates of 1 ,3 and 5 years after the surgery were evaluated by Kaplan-Meier ,and influence factors were ana-lyzed by Cox regression .Results The 1 ,3 and 5 years survival rates were 89 .0% ,68 .6% and 56 .2% ,respectively .The survival rates were significantly influenced by the smoking history ,the abnormal degree of mediastinal lymph node ,TNM stage ,the class number of lymph node dissection ,and the class number of mediastinal lymph node dissection(P<0 .05) .The smoking history(χ2 =16 .198 ,P=0 .000) ,the abnormal degree of mediastinal lymph node(χ2 =8 .873 ,P=0 .003) ,TNM stage(χ2 =18 .718 ,P=0 .000) , and the class number of mediastinal lymph node dissection (χ2 =4 .897 ,P=0 .027) were the influence factors of prognostic .Conclu-sion The accurate TNM staging and mediastinal lymph node with image examination could be more appropriate to operative indica-tions ,meanwhile ,if smoking was controlled ,the class number of mediastinal lymph node dissection was more .These could be bene-ficial to the survival .

Objective To study the influence of splenectomy on the surgical efficacy in the patients with gastric cancer in the up-per and middle portion and entire stomach .Methods 86 patients with gastric cancer in the upper and middle portion and entire stomach receiving the gastric cancer D 2 radical operation in the two hospitals from April 2003 to January 2008 were selected and di-vided into the observation group(47 cases) and the control group(39 cases) .The observation group accepted the modified lymph-adenectomy with spleen-preserving ,while the control group accepted the D2 total radical gastrectomy with splenectomy .The long-term effects were compared between the two groups .Results The total hospitalization time and the occurrence rate of postoperative complications were(20 .62 ± 7 .93)d and 10 .64% in the observation group ,which were less than (27 .51 ± 12 .44)d and 30 .77% in the control group ,and the differences between the two groups showed the statistical significance (t=3 .128 ,χ2 =5 .446 ,P=0 .000) . The 5-year survival rate in different TNM stages had no statistical difference between the two groups (P>0 .05) .Conclusion For the patients with gastric cancer in the upper and middle portion and entire stomach without spleen or splenogastric ligament metas-tasis ,the modified spleen-preserving lymphadenectomy could make the patients to get the same prognosis as the gastrectomy com-bined with splenectomy ,which reduces the occurrence rate of complications and is worth promoting clinically.

BACKGROUND:Stem cells are a kind of cells characterized as species diversity, self-replication and renewal
ability, multiple differentiation potential and high proliferation potential. Then, the stem celltreatment for ischemic brain injury would be of great benefit. Stem celltherapy provides a new way for the treatment of ischemic stroke, but the mechanism is stil unclear.
OBJECTIVE:To describe the types of stem cells and review the mechanism underlying stem celltreatment for ischemic stroke.
METHODS:The first author retrieved PubMed database, Chinese Journal Ful-text Database for articles related to stem cellclassification and effectiveness, safety and mechanism of stem celltherapy for ischemic stroke
published from January 1992 to September 2012. The key words were“stem cells, brain ischemic stroke,
transplantation, treatment”in English and Chinese, respectively. A total of 168 literatures were retrieved, and 61 articles met the inclusion criteria.
RESULTS AND CONCLUSION:Stem celltherapy for ischemic stroke has shown a promising prospect though it is staged in the period of animal models. Stem celltransplantation for promoting functional recovery in the treatment of stroke has been completed in the clinical phase I or phase II trials. Stem celltransplantation for ischemic stroke appears to have no adverse reactions and to promote functional recovery. Main difficulties in stem celltransplantation for treatment of ischemic stroke include sources of stem cells, transplantation approach, stem cellsurvival in the host body, stem cellintegration with the host brain, therapeutic effectiveness and security. Based on the acquired results from the mechanism research and clinical trials, how to safely and quickly apply the stem celltherapy from the experiments to the clinic stil needs to work.

Objective To investigate the changes and the significance of the contents in matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9) in plasm of patients with intracerebral hemorrhage (ICH). Methods The contents of MMP-2 and MMP-9 in plasm of 50 patients with ICH and 50 healthy people (control group) were measured respectively through ELISA methods. Results Compared with the control group,the increase of the contents of MMP-2 and MMP-9 had obvious statistic significance in plasm of patients with ICH (P0.05),but they had obvious statistic significance in the comparison among other time groups (P

Objective To explore the expression of X-linked inhibitor of apoptosis (XIAP) in pancreatic carcinoma tissues and SW1990 cell line, and to investigate its relationship to the chemoresistance. Methods The expression of XIAP in 23 pancreatic carcinoma tissues was detected by immunohistochemistry and the relationship of XIAP expression with the clinical stage and pathological grade was analyzed. 5-FU was used to induce the chemoresistant capability of SW1990 pancreatic cell line. The XIAP expression in SW1990 was examined by RT-PCR and Western blot. The XIAP level in the cells and its chemoresistance to 5-FU were analyzed by linear regression. Results The XIAP expression was detected in 89. 6% (20/23) of pancreatic carcinoma tissues and 33. 3% (4/12) of normal pancreatic tissues,respectively. The positive rate and expression level of XIAP were higher in pancreatic carcinoma than normal pancreatic tissues. In addition, 5-FU could induce the chemoresistance (P

Objective To analyze the correlation of C -reactive protein level and acute cerebral hemorrhage prognosis,provide the evidence for determining the condition and prognosis.Methods 163 patients with acute spon-taneous intracerebral hemorrhage met selection criteria in Yantai Economic and Technology Development Area Hospi-tal were selected as the study objects,the CRP were detected by immunoturbidimetry in the 1 day,3 days,7 days, 14 days after admission,the NIHSS were calculated,48 cases of healthy people were selected as the control group,the CRP between hemorrhage group and the healthy control group,patients with different brain hemorrhage,patients with different neurological deficit were compared.Results (1 )The C -reactive protein of cerebral hemorrhage group when admission were (8.92 ±1.0)mg/L,the control group were (4.25 ±0.23)mg/L,the C -reactive protein of cer-ebral hemorrhage group were significantly higher than that of the control group,the difference was statistically signifi-cant,t =-3.683,P <0.01.(2)The mean serum CRP after admission admission 1,3,7,14d were (9.34 ±1.65) mg/L,(9.56 ±1.58)mg/L,(6.58 ±1.17)mg/L,(4.98 ±1.26)mg/L,the CRP was a large rise in the course of the disease 1d,3d peak,F =7.487,P <0.05,the CRP had difference between large amount of brain hemorrhage,moder-ate amount of brain hemorrhage,and small amount of brain hemorrhage,a large amount of patients with cerebral hem-orrhage CRP levels were higher than a moderate amount of patients with cerebral hemorrhage and a small amount of patients with cerebral hemorrhage 1,3 and 7d,during which the difference was statistically significant(F =3.31, 4.62,4.21,P <0.01 or P <0.05).(3)The CRP peak levels of different degrees of neurological deficits in patients with acute cerebral hemorrhage decreased in 3d,7d,14d,the CRP of 3d were higher than that in 1d,the CRP of 7,14d were lower than that in 1d,CRP levels between different neurological deficits degree of acute cerebral hemorrhage were also significantly different (F =4.29,5.32,3.62,3.21,P <0.05 or P <0.01),the CRP levels of Severe neurological deficit in 1d,3d,7d,14d were significantly higher in mild and moderate neurological deficit (t =6.567,4.241, 4.010,3.511 and 4.965,3.031,3.104,3.009,P <0.05 or P <0.01 ).Conclusion The serum CRP levels of patients with acute cerebral hemorrhage significantly increased,the serum CRP level shows dynamic changes in the first three days of the onset of peak,the CRP levels significantly correlated with the prognosis of cerebral hemorrhage, the more severe neurological deficit,the greater the amount of cerebral hemorrhage,higher serum CRP levels.

Objective To study comparatively reduction and prevention of surgery-induced peritoneal adhesion by methylene blue and hyaluronate sodium. Methods 46 patients with acute diffuse peritonitis or adhesion intestinal ileus were divided at random into 3 groups: methylene blue ( MB) group, hyaluronate sodium (HS) group and control ( C ) group. The alteration of postoperation recovery,serum MDA, TNF? and erythrocytes SOD in patients were investigated. Results The recuperation in group MB was better than in group C (P

The 2450 MHz microwave irradiation was applied to the scrotal area of the rabbit and the temperature of the scrotal skin was maintained to 41—42℃ for 20 minutes. Ultrastructural alterations of the mucosa and muscularis of the seminal vesicles were studied by transmission electron microscopy at different intervals from 1 hour to 45 days after treatment. Both the principal cells and the smooth muscle cells were sensitive to microwave irradiation. Ultrastructural changes were detected in a few principal cells and smooth muscle cells after 1 hour. Later, the degeneration became serious 3 to 7 days following exposure, but appeared to be alleviated after 45 days. The main alterations in principal cells were dilatation of the rough endoplasmic reticulum and Gelgi complex, many myelin figures and accumulation of lipid droplets in the cytoplasm, swelling of microvilli and degeneration of nuclei. There were many vacuoles and myelin figures in the degenerative smooth muscle cells. Some basal cells also underwent degeneration. In addition, thickening and irregular infolding of the lamina propria were noted. The significance of the effects of microwave on the seminal vesicles was discussed.

Objective:To investigate the effect of sintering temperature on the shrinkage and microstructure of dental fluorosilicic mica glass-ceramic with two different particle size. Methods:Fluorosilicic mica glass powder with average particle diameter of 72.8 ?m was named PO and that with average diameter of 4.5 ?m was named Pm. PO and Pm were molded by cool isostatic pressing technique and then sintered at different temperatures between 600-1 000 ℃. The shrinkage and microstructure of the sintered blocks of PO and Pm were systematically compared with each other. Results:The shrinkage of PO and Pm blocks were all increased as the temperature ascended. However, the shrinkage curves were distinctly different. At the same sintering temperature the shringkage of Pm was larger than that of PO. Moreover, the turning points of temperature (reflecting transition of the sintering mechanisms) of Pm was higher than that of PO. The microstructure observation showed that sintering at 950 ℃ resulted in mica crystal in glass-ceramics and the best compactness of the sintered blocks of both PO and Pm. Conclusion:Sintering glass powder of smaller particle size at 700-850 ℃ may achieve better sintering compactness.