Objective Study the inhibitory action of gastric H~+/K~+-ATPase by scopaparia dulcis,extractive from ethanol.Methods measure the gastric H~+/K~+-ATPase activity by animal test and inorganic phosphorus measurement method.Results chemical estimation shows the H~+/K~+-ATPase activity of experiment group is lower than that of control group,there is remarkable difference in statistics.Conclusion the scopaparia dulcis'extractive from ethanol can inhibit the rats' gastric H~+/K~+-ATPase activity.

Objective To study the accuracy of plasma matrix metalloproteinase-9 (MMP-9) predicting hemorrhagic transformation (HT) in ischemic stroke. Methods The studies on plasma MMP-9 predicting HT in ischemic stroke were included, in which diagnostic criteria, methods, and subjects were clearly described, regardless of language of publication and type of studies. MEDLINE (Apr, 1966 to 2006), EMBase (Apt, 1966 to 2006), CNKI (Feb, 1977 to 2006), and wanfangshuju (1989 to 2005) were searched and the references lists of eligible studies were manually searched. Two reviewers independently evaluated the quality of studies and extracted data. The data were analyzed using the Revman 4. 2 or SPSS 11.0. Results Five trials including 497 patients fulfilled the inclusion criteria, 109 of the 497 patients developed HT. The heterogeneity among studies was great (xspecialty 89. 9% (95% CI: 86. 4%-93.5%), sensitivity 86. 5% (95% CI: 77. 3%-96. 8%). Conclusions The values of plasma MMP-9 may be an independent predictor of hemorrhagic transformation. The number of patients in the included studies is not large enough, and the results need to be confirmed in further studies.

Animals ; Carcinoma, Non-Small-Cell Lung ; genetics ; metabolism ; Humans ; Lung Neoplasms ; genetics ; metabolism ; Molecular Imaging ; Mutation ; Positron-Emission Tomography ; RNA, Messenger ; metabolism ; Receptor, Epidermal Growth Factor ; biosynthesis ; genetics

Coronary Restenosis ; etiology ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; therapy ; Stents ; Thrombosis ; etiology

Cone-Beam Computed Tomography ; methods ; Humans ; Nasopharyngeal Neoplasms ; diagnostic imaging ; radiotherapy ; Radiotherapy Planning, Computer-Assisted ; Radiotherapy, Intensity-Modulated ; methods

Objective To observe the sensitivity ofastrocytoma to chemotherapeutic drugs, in order to explore the drug selection using chemosensitivity testing in vitro on astrocytoma. Comparing different WHO grade astrocytoma to chemotherapeutic drugs sensitivity differences,providing the basis data for clinical treatment. Methods The astrocytoma cells were seperated and cultured in vitro from 142 tumor tissues by glioma resection, including 55 cases of low-grade astrocytoma (WHO grade Ⅰ , Ⅱ) and 87 cases of high-grade astrocytoma (WHO grade Ⅲ, Ⅳ). The proliferation inhibition and chemosensitivity of tumor cells to 11 drugs were investigated by using MTT method. Results There were 54.93% (78/142) patients recommended chemotherapeutic drug in 142 cases. The percentage was 41.82%(23/55) in the low-grade astrocytoma, and 63.22% (55/87) in the high-grade astrocytoma respectively. Teniposide,carboplatin,vincristine as the sensitive drugs were similar in different WHO grade astrocytoma. Conclusions The chemosensitivity testing could be used to filtrate sensitive drugs to clinical chemotherapy. The action is more prominent in high-grade astrocytoma than in low-grade astrocytoma. There is no difference in the choice of sensible drugs among different WHO grade astrocytoma.

Objectives:To investigate the association and the prognostic significance of the expression of telomerase activity (TA) and apoptosis (APO) in tissues of primary breast cancer.Methods:TRAP-PCR and ELISA were developed to detect the expression of TA,and make quantitative and qualitative analysis respectively.TUNEL was also used to evaluate apoptosis cells in cancer lesions and count apoptosis index (AI).The expression levels of proteins of oncogene Bcl-2 and p53 were measured by means of S-P immunohistochemistry.Results:The mean TA positive expression rate was 89.8%,and its mean optic density was (A) 0.63±0.29,which were significantly higher than those of normal tissues and benign breast lesions (P<0.05).The 5 years survival rate of patients with positive TA expression was lower (60.3%) than those of negative expression (77.4%).There were no relations between TA expression and patients ages,TNM staging,lymph nodes metastasis,size,locations and pathological types of cancer.But TA was positively correlated with APO (r=0.733 1,P<0.05) and the protein expression of oncogene Bcl-2 (r=0.781 4,P<0.05) and negatively correlated with that of p53 (r=-0.625 5,P<0.05).Moreover,in patients receiving preoperative chemotherapy,the levels of TA expression were much lower than those without chemotherapy (64.7% vs 85.1%),and the former had higher AI than the latter (7.19±3.75% vs 3.23±2.04%),intraarterial chemotherapy group were superior significantly to adjuvant group (P<0.05).Multivariate Cox Regression Analysis showed that only TA and AI influenced the survival time of primary breast cancer patients,and patients with higher positive TA expression and AI>4.0% had shorter survival time than those of negative TA expression and AI<4.0% patients.Conclusions:There was a significant correlation between TA and APO and its related oncogene Bcl-2,p53.TA and APO are of great diagnostic values,therapeutic helps and prognostic significance in the formation and the development of primary breast cancer.

Objective To observe the protective effect of sodium hyaluronate (Na-HA),and its effects on mRNA expression of peroxisome proliferators-activated receptor gamma (PPAR-γ) in cartilage of rabbit osteoarthritis (OA) model.Methods Forty eight white rabbits were divided into A,B,C groups randomly.Group A were normal controls,groups B and C were underwent unilateral anterior cruciate ligament transection (ACLT).The rabbits in group B were injected normal saline after ACLT;Group C rabbits received intra-articular 1% sodium hyaluronate (HA) injections 5 weeks after surgery,0.3 ml once a week.At week 11 after the surgery,all rabbits were sacrificed.The cartilage changes on the medial femoral condyles were graded.Cartilage sections were stained with safranin-O and HE,mRNA expression of PPAR-γ was detected by real time polymerase chain reaction (Real Time-PCR).Results Cartilage degeneration in group B was significantly more severe than in groups A and C.The grey value of Safranin-O of B group were higher than groups A and C.Expression of PPAR-γ mRNA in group B was higher than that in groups A and C.Conclusion NaHA has a protective effect on articular cartilage degeneration,and the inhibitory effect on PPAR-γ mRNA expression may be one of the therapeutic mechanism of Na-HA.

Objective To explore the CT features in CD_(117)-weak and CD_(117)-negative gastrointestinal stromal tumors(GIST).Methods The CD_(117)-weak and CD_(117)-negative Gist proved by pathologically and sur- gically in 13 cases were retrospectively analyzed.Results The tumor was located in the stomach in 6 cases, small intestine in 4 cases,colorectum in 2 cases,greater omentum in one case.The most common clinical manifestations were abdominal pain or discomfort in 6 cases,hematemesis or melena in 3 cases.Malignant tu- mors occurred in 8 cases.Benign tumors occurred in 5 cases.A soft tissue was identified in all 13 cases in CT examination.The CT examinations revealed cystic regions and bleeding in 5 cases.Calcification was not noted within the masses in all cases.The mean diameter of benign tumors was 3.4 cm?2.8 cm while that of malig- nant tumor was 7.5 cm?6.2 cm.All the cases underwent operation,the resection rate was 100%.After follow up from 6 months to 4 years in 10 cases,1 case died of tumor recurrence and metastasis,the others survived. Conclusion CD_(117)-weak and CD_(117)-negative Gist occurred more common in the stomach.CT is useful in lo- cation and differentiation of CD_(117)-weak and CD_(117)-negative gastric stromal tumors with regard to benign or malignant.Surgery is the main method for final diagnosis and treatment.

Objective To investigate the protective effect of Ambroxol against experimental lung ischemia reperfusion (I/R) injury in a situ hilar clamp model.Method Left lung of rat was rendered and ischemic for 90 minutes,and reperfused for up to 2 hours,as the model.Twenty-four SD rats were randomly divided into 3 groups with 8 rats each group:control group,I/R group,I/R and Ambroxol treatment group (AMB group).Rats of AMB group received Ambroxol (25 mg/kg) Intraabdominally 30 minutes before ischemia and intravenously 5 minutes before reperfusion.After 2 hours of reperfusion,blood-gas analysis,the serum level of IL-1?,IL-8 and TNF-?from carotid artery were delected.The wet/dry ratio of lung,the activity of erythrocuprein (SOD),the content of malonaldehyde (MDA) and the activity of myeloperoxidase (MPO) were determined and pathematology changes were observed in the left lung tissue.Differences within the groups were analysed using two-sample t-test. Results After 2 hours of repeffusion,there were no significant changes of artery partial pressure of oxygen (PO_2) and partial pressure of carbon dioxide (PCO_2) among three groups.The wet/dry ratio of lung,the activity of MPO (U/g) and the content of MDA (nmol/mgprot) of I/R group were (5.3?0.5),(1.30?0.26) and (0.66?0.16),significantly higher than those of the control group (P