OBJECTIVE:To prepare Levetiracetam soluble tablets and evaluate its quality. METHODS:The liquidity indexes of raw material(bulk density,tap density,etc.)and the particle size distribution,liquidity indexes,moisture of the intermediate,that was mixed granules,were investigated to establish preparation method of tablet. The content of levetiracetam was determined by HPLC,and quality indexes of soluble tablets were evaluated,such as appearance,disintegration time,the content of main com-ponent. RESULTS:The wet granulation method was established to prepare Levetiracetam soluble tablets. The specification was 100 mg/220 mg of prepared tablets,it was bright in appearance,and disintegration time was less than 1 min;average content of leveti-racetam was 100.1%,and rigidity was 7.5 kg;the friability of prepared tablets was up to the standard. CONCLUSIONS:The for-mulation and preparation technology of Levetiracetam soluble tablets are rational and controllable. The quality indexes of prepared tablets are all up to the requirements.

Objective: To validate the therapeutic value of CT-guided percutaneous ethanol injection (PEI) in the treatment of metastatic adrenal tumors. Methods: Thirty one foci (diameter ranging from 1.5 cm to 7.2 cm) in 25 patients with metastatic adrenal tumors were treated with CT-guided PEI for more than twice. Plain and enhanced CT scans were performed 1-2 months after PEI to observe the size and necrosis of the tumors. Results: Post-PEI enhanced CT scan showed that 18 of the 20 foci with diameters less than 3 cm completely necrotized; 11 foci with diameters between 3 cm and 7.2 cm necrotized partially, and 2 foci completely necrotized after another 2-3 courses of PEI treatment. Conclusion: CT guided PEI is a simple and minimally invasive means for treatment of metastatic adrenal tumors, and the therapeutic effect is satisfactory.

Objective:This study aims to explore the relationship between serum response factor (SRF) expression level and gas-tric cancer progression by detecting SRF expression level in cancer cells. Methods:The SRF gene in SGC-7901 cells was silenced by RNA interference. Transfection efficiency was detected by fluorescence microscopy, cell proliferation by CCK 8 method, SRF gene and protein expression level by real-time polymerase chain reaction and Western blot, and cell cycle by flow cytometry. Results:Cell treat-ment with siRNA-SRF induced significant reduction in SRF mRNA levels. Western blot analysis showed that SRF protein decreased by 40.1%in the siRNA group compared with that in the control group (P<0.05). Compared with the blank, negative, and mock transfection control groups, cell proliferation of the siRNA-SRF group decreased. The inhibition ratio reached 64.24%, as measured by the CCK-8 assay (P<0.05). Treatment with siRNA could block SGC-7901 cell cycle at G0/G1 phase (P<0.05). Conclusion:SRF expression is close-ly associated with gastric carcinoma cell proliferation. SRF protein level detection can provide a certain reference value in evaluating malignant gastric carcinoma progression. SRF is possibly an important target for the prevention and control of gastric cancers.

Adolescent ; Basal Ganglia Diseases ; Calcinosis ; Child ; Female ; Humans ; Pedigree

Objective: To study the impression of Chinese people on Chinese urban children, their main source of information about the Chinese people, and the infvuence of age, school, and gender upon their evaluation. Methods: 383 Chinese urban children ranging from 5 to 12 years were interviewed individually or investigated with the questionnaire. Results: Most of the children reported that the Chinese were happy, clean, peaceful, clever, hardworking, kind and nice. However, the urban children's positive impression of the Chinese people was decreased with their growing up. The study also found that children's information on the Chinese people was mainly in order from television, newspapers, books and cartoons, parents, classmates, friends and teachers, and radio, and that the information source became increasingly diversificed with age. No significant difference in gender and between two schools was found. Conclusion: Chinese urban children had a positive impression of Chinese people, and they had a preference and identity for Chinese people . Mass media were the main source of information.

Objective To study the feasibility of laparoscopic procedures in the treatment of ectopic pregnancy with hemorrhagic shock. Methods Laparoscopic procedures were carried out in 35 patients with ectopic pregnancy concurrent with hemorrhagic shock. Patients' blood pressures were all above 60/30 mmHg, and B-ultrasonography revealed the intra-abdominal blood loss

OBJECTIVE:To study inhibitory effects in vivo and in vitro of gemcitabine on liver cancer. METHODS:MCF-7 cells and HepG2 cells were treated with different concentrations of gemcitabine solutions(5,10,20,30,50,70 and 90 μmol/L). The absorbance of cells was determined by MTT assay after treated for 24,48 and 72 h. The inhibition ratio and 50% inhibiting concentration(IC50) of cells were calculated. Tumor-bearing mice were established by inoculating 0.2 ml liver cancer H22 cell line via right anterior axillary,and then randomly divided into control group(normal saline)and gemcitabine group(40 mg/kg)with 5 mice in each group. They were given relevant medicine intravenously every 2 days,for 3 times. The changes of body weight and in-hibition ratios were recorded. RESULTS:Gemcitabine can inhibit MCF-7 cells and HepG2 cells,and IC50 of gemcitabine to them were 30 and >90 μmol/L within 24 h respectively,and those of gemcitabine to them were all lower than 5 μmol/L after 48 h and 72 h. There was no statistical significance in body weight of tumor-bearing mice between 2 groups,and inhibitory rate of gemcitabi-ne to H22 cell line was 75.76%. CONCLUSIONS:Gemcitabine can inhibit liver cancer in vivo and in vitro.

Objective:To investigate the mobile phone dependence college students'features of detection of different facial expressions and give suggestion to future intervention for mobile phone dependence students.Methods:Totally 548 college students were assessed with the Mobile Phone Addiction Tendency Scale (MPATS).Two groups were screened by cluster analysis and high and low group standard,namely,mobile phone dependence group and control group,40 participants in each.A visual search task was used to examine the efficiency of facial processing.Participants searched displays of schematic faces and were required to determine whether the faces displayed were all the same or whether one was different.Results:When the expressions of the faces were the same,the main effect of number of faces was significant [F(1,468) =11.26,P ＜ 0.01],the detection of four faces was faster than that of eight faces [(1079.1 ± 187.9) msvs.(1139.2 ±202.7) ms].When the expressions of the faces were different,the main effect of expression types was statistically significant [F (1,312) =10.30,P ＜ 0.01],the detection of sad faces was faster than that of happy faces [(941.0 ± 168.5) ms vs.(997.8 ± 152.7) ms,P ＜ 0.01].The types of expressions had significant interaction with groups of participants [F (1,312) =16.55,P ＜ 0.01],mobile phone dependence group detected the sad faces significantly faster than the control group [(975.5 ± 112.4) ms vs.(906.4 ± 126.5) ms,P ＜0.05].Conclusion:The detection of sad faces is faster in those with mobile phone dependence than in controls.The detection of the sad and happy faces are serial search in both groups.

miRNA is a kind of endogenous non-coding short RNA. Mature miRNA was formed through the process of shearing and transporting after genetic transcription. miRNA exhibits many important biological functions through regulating expression and translation of target mRNAs. Different miRNAs may act as oncogenes or antioncogenes, and have tissue specificity. The progress of the tumorigenesis is usually accompanied by expression-profile changes of miRNAs. MiRNA regulates many tumor biological behaviors such as differentiation, proliferation, apoptosis, invasion, metastasis, and drug resistance of tumors. Furthermore, some miRNAs have clinical significance in predicting prognosis of tumor patients.

Objective To explore the expression of ATP-binding cassette transporter C2(ABCG2) in adriamycin(ADM)-resistant human esophageal cancer cells.Methods The ADM-resistant human esophageal cancer cell(Eca109/ADM) was induced by gradually increasing the ADM concentration in the culture medium of human esophageal cancer cell line(Eca109) and long time screening culture.ABCG2 mRNA and protein of ADM-resistant cells was detected by RT-PCR,flow cytometry(FCM) and Western blot.Drug excretion of Eca109/ADM cells was examined by FCM.The drug resistance index to ADM was detected by MTT.Results The expression of ABCG2 in Eca109/ADM cells was higher than that in Eca109 cells.The drug excretion of Eca109/ADM cells was stronger than Eca109 cells.The Ecal09/ADM cells drug resistance index to ADM was 3.29.Conclusion The ADM-resistant cell line Eca109/ADM was established successfully as an ideal chemoresistant cell model.ABCG2 might be involved in the drug resistance of esophageal cancer cell.