Animals ; Calcitonin Gene-Related Peptide ; blood ; Cerebral Infarction ; blood ; Endothelins ; blood ; Humans ; Nitric Oxide ; blood ; Plasminogen Inactivators ; blood ; Thromboxane B2 ; blood

Producing cellulase conditions such as different temperature,inoculum size,liquid level and pH level by Trichoderma aureoviride in the shaking bottle were studied by orthogonal design method. The results showed that the main factor affecting the producing cellulase was temperature among the orthogonal conditions.The optimum conditions were as follows:cultivating solution initial pH was 6, cultivating temperature was 28℃,inoculation size was 8%,liquid level was 40 mL in 150 mL triangle bottle,rotation speed was 170 r/min.

Objective To explore the effects of extract of Gingko biloba leaves (EGb) on learning, memory and hippoeampal heine oxygenase-1 (HO-1) expression in diabetic rats.Methods The behaviors of streptozotoein-induced diabetic rats were observed by Morris water maze for learning and memory after 6 months of diabetes.The HO-1 mRNA expression and protein expression in hippocampus of diabetic rats were detected by RT- PCR and immunohistochemistry respectively.Results The escape latency time in Morris water maze of diabetic rats was prolonged markedly.HO-1 mRNA and HO-1 protein expressions in hippocampus of diabetic rats were increased (1.635?0.326 vs 0.978?0.214,7.2?1.7 vs 1.9?0.5,respectively,both P＜0.01).The escape latency times in EGb (100,50 mg/kg) treated groups were shortened.HO-1 mRNA and HO-1 protein expressions in hippocampus were decreased at the same time as compared with diabetic group (100 mg/kg:0.954?0.144,2.0?0.8;50 mg/kg:0.988?0.154,2.5?0.6,all P＜0.01).Conclusion EGb can significantly inhibit HO-1 expression in hippocampus and improve learning and memory dysfunction in diabetic rats.

Antigens, CD20 ; metabolism ; Antigens, CD34 ; metabolism ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Cyclophosphamide ; therapeutic use ; Diagnosis, Differential ; Doxorubicin ; therapeutic use ; Humans ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; metabolism ; pathology ; Male ; Melanoma ; metabolism ; pathology ; Middle Aged ; Prednisone ; therapeutic use ; Vascular Neoplasms ; drug therapy ; metabolism ; pathology ; Vincristine ; therapeutic use

Objective: To investigate the effect of RNA interference (RNAi) targeting AKT1 and PI3K P85 on the proliferation and invasion of breast carcinoma MCF-7 cells. Methods: The recombinant adenovirus expression vector, which contained short hairpin RNA (shRNA) targeting open reading frames of AKT1 and PI3K P85 (rAd5-siAKT1-siPI3K), was transfected into human breast carcinoma MCF-7 cells. AKT1 and PI3K P85 mRNA and protein expressions were detected by real-time PCR and Western blotting analysis. The expressions of PCNA, cyclinD1, and P53 were also detected by Western blotting analysis. The proliferation and apoptosis of MCF-7 cells were measured by MTT, flow cytometry and 2-dementinal and 3-dementional matrigel assay. Results: Recombinant adenovirus vector rAd5-siAKT1-siPI3K dramatically down-regulated AKT1 and PI3K P85 mRNA and protein expressions in MCF-7 cells; the downstream factors PCNA and cyclin D1 were also down-regulated, while P53 was up-regulated. Growth of MCF-7 cells was inhibited by over 50% in rAd5-siAKT1-siPI3K group as measured by MTT assay, and cell cycle was arrested in G_1/G_0 phase compared with untransfected and rAd5-siCtrl transfected groups. Cell growth on matrigel matrix showed normal cell shapes, while the cells in rAd5-siAKT1-siPI3K transfected group were detached from the matrix or grew in scattered clustering patterns, forming only small aggregates. Conclusion: shRNA targeting AKT1 and PI3K P85 can significantly down-regulate the expression of AKT1 and PI3K P85 in breast carcinoma MCF-7 cells, and inhibit the growth of MCF-7 cells in vitro.

Objective To study the effect of intensive trunk muscle training on balance and walking in pa- tients with hemiplegia caused by stroke.Methods A total of 90 stroke patients were recruited and randomly divid- ed into a treatment group(45 cases)and a control group(45 cases).All the patients were given conventional reha- bilitation training.Meanwhile,intensive trunk muscle training was also administered for those in the treatment group as well.The trunk control function,balance ability and walking ability were assessed by using the trunk control test, Berg Balance Scale and the balance subscale of the Fugl-Meyer physical performance test,and Holden's functional ambulation classification,respectively,before and after 6 weeks of training.Results It was found that all the pa- tients scored better with the trunk control test,Berg's balance scale,the balance subscale of the Fugl-Meyer physical performance test and Holden's ambulation classification after treatment,and there were significant differences between the two groups after treatment(P

Carcinoma, Renal Cell ; metabolism ; pathology ; surgery ; Cytokines ; metabolism ; Diagnosis, Differential ; Humans ; Immunohistochemistry ; Kidney ; chemistry ; pathology ; surgery ; Kidney Diseases, Cystic ; metabolism ; pathology ; surgery ; Kidney Neoplasms ; metabolism ; pathology ; surgery ; Male ; Middle Aged ; Mucin-1 ; metabolism ; Nephrectomy

Aged, 80 and over ; Antibodies, Monoclonal ; metabolism ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Diagnosis, Differential ; Granuloma ; metabolism ; pathology ; Humans ; Keratins ; immunology ; Male ; Mucin-1 ; metabolism ; Skin Neoplasms ; metabolism ; pathology

The study aims to characterize and compare interferon reference standards from 5 manufacturers. By testing molecular mass and trypsin-digested peptide mass mapping, the amino acid sequence was verified and post-translational modifications such as disulfide bond were identified. Results show that the molecular mass and amino acid sequence were consistent with theory; the disulfide bonds of 4 lots of interferon were Cys1-Cys98/Cys29-Cys138, 1 lot was Cys29-Cys139/Cys86-Cys99; N-terminal "+Met", acetyl N-terminal and Met oxidation were identified in part of the sample. UPLC-MS can be used to characterize and compare interferon reference standards from different manufacturers.
Amino Acid Sequence ; Chromatography, High Pressure Liquid ; methods ; Interferons ; standards ; Mass Spectrometry ; methods ; Molecular Weight ; Oxidation-Reduction ; Peptide Mapping ; Protein Processing, Post-Translational ; Reference Standards

A method to determine dihydroxyacetone (DHA) in fermentation broth was developed by high performance liquid chromatography (HPLC). DHA was separated on a Alltima C18(5?m,250?4.6mm). The mobile phase was 0.5% methanol solution (pH adjusted to 3.0 with H3PO4), the flow-rate was 1.0 ml/min and the detective wavelength was 200 nm. The detection limits of DHA was 0.1 g/L～10.0 g/L. 6.2 g/L DHA in the fermentation broth was detected by HPLC, which was in agreement with the result by spectrophotometric method.The method was applicable for DHA determination in the fermentation process.