Atherosclerosis ; immunology ; Dendritic Cells ; immunology ; Humans

Sijunzi Decoction polysaccharide (SJZDP) is the active component contributing to the function of intestinal immunoregulation, which is the highest content in Sijunzi Decoction. SJZDP can activate immunological response in peyer’s patch, mesenteric lymph nodes, intestinal epithelial cells and intestinal intraepithelial lymphocytes, but the mechanism is unknown. The reported mechanisms of SJZDP’s intestinal immunoregulation activity are related to its regulation of intestinal flora and polyamine signaling pathway. This review is to give a comprehensive summary of information regarding the intestinal immunoregulation of SJZDP and mechanism to help us take the action for reasonable clinical utilization and further researches.

OBJECTIVETo observe the inhibitory effect of gefitineb on the proliferation and its inducing effect on the apoptosis of mouse I-10 Leydig testicular cancer cells in vitro.

METHODSWe treated I-10 Leydig testicular cancer cells of mice with gefitineb at 0, 1.25, 2.5, 5, 10, 20, and 40 µmol/L. Then we determined the inhibitory effect of gefitineb on the growth of the cells by MTT, detected their early and late apoptosis by Annexin V-FITC/propidium iodide double staining and Hoechst 33258 nuclear staining, respectively, and observed the expressions of apoptosis-related proteins Bcl-2, Bax and caspase 3/9 by Western blot.

RESULTSCompared with the blank control group, gefitineb significantly inhibited the proliferation of the I-10 cells at 10 and 20 µmol/L (P < 0.05). The survival rate of the cells was (32.4 ± 2.8)% (P < 0.01) and their early and late apoptosis rates were (26.7 ± 4.2)% and (59.33 ± 10.2)% in the 40 µmol/L group, significantly different from those in the control (P < 0.05 and P <0.01). In comparison with the blank control group, gefitineb at 10, 20, and 40 µmol/L increased the expression of pro-apoptotic protein Bax by (41.9 ± 7.1), (60.1 ± 9.8), and (69.0 ± 11.3)% (all P < 0.05), decreased that of apoptosis-inhibitory protein Bcl-2 by (50.3 ± 8.9), (63.9 ± 6.9), and (88.7 ± 13.9)% (all P < 0.05), and elevated that of the cleft proteins caspase-3 by (69.0 ± 6.9)% (P < 0.05), (71.5 ± 8.1)% (P < 0.05), and (110.9 ± 14.2)% (P < 0.01) and caspase-9 by (51.8 ± 4.9), (54.7 ± 6.7), and (43.8 ± 11.8)% (all P < 0.05).

CONCLUSIONGefitineb can increase the cytotoxicity of I-10 Leydig testicular cancer cells of mice and induce their apoptosis via the mitochondria-mediated apoptosis signaling pathway.

Animals ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; Apoptosis Regulatory Proteins ; metabolism ; Caspase 3 ; metabolism ; Caspase 9 ; metabolism ; Cell Proliferation ; drug effects ; Cell Survival ; Leydig Cell Tumor ; drug therapy ; metabolism ; pathology ; Male ; Mice ; Neoplasm Proteins ; metabolism ; Neoplasms, Germ Cell and Embryonal ; drug therapy ; metabolism ; pathology ; Quinazolines ; pharmacology ; Testicular Neoplasms ; drug therapy ; metabolism ; pathology ; bcl-2-Associated X Protein ; metabolism

Data Mining ; Diabetic Neuropathies ; drug therapy ; Diagnosis, Differential ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; Phytotherapy

Objective: To establish the quality standard for compound Heishen pills. Methods: Scrophulariae Radix, Radix et Rhizoma and Belamcancae Rhizoma were identified by TLC. HPLC was used to determine the content of harpagoside and cinnamic acid in Scrophulariae Radix on a Welchrom-C18 column using methanol-acetonitrile-1% ethylic acid (8∶21∶71) as the mobile phase. The flow rate was 1. 0 ml·min-1 . The column temperature was at 30℃ and the detection wavelength was set at 278 nm. Results:The TLC method had good specificity without interference from negative control. The linear range of harpagoside was 1. 32-65. 80μg·ml-1 with the average recovery of 98. 06%(RSD=2. 16%),and that of cinnamic acid was 0. 38-19. 20 μg·ml-1 with the average recovery of 98. 78%(RSD=1. 34%). RSDs of precision, stability and reproductibility tests were all below 2%. Conclusion: The established method is accurate, feasible and reproducible. It can be used in the quality control of compound Heishen pills.

Objective To explore the clinical significance of micro-metastasis ( mM ) in the nipple-areola complex (NAC) and the regional skin of breast cancer. Methods Samples from the skin projection of the lump and the midline-transection of the nipple-areola complex were collected from 60 breast cancer patients for both routine pathological examination ( RP) and cytokeratin-19 (CK-19) monoclonal antibody immuneohistochemical examination (IHC). Results NAC invasion was identified by RP in 3 cases (5. 0% ) , and by IHC in 7 cases (11.7%) ( x2 = 2. 25, P

OBJECTIVE:To prepare the Albendazole nanoliposomes freeze-dried power and study its properties. METHODS:Freeze-drying method was conducted to prepare Albendazole nanoliposomes freeze-dried power,using the particle size,encapsula-tion efficiency,appearance,redispersibility as indexes,single factor test was combined with orthogonal test to screen freeze-drying preparation technology. The morphological changes,particle size,Zeta potential,moisture content,12 months stability at 4 ℃ be-fore and after freeze-drying were detected. RESULTS:Plus a total content of freeze-dried protective agent was 10%,the ratio of glucose-trehalose-mannitol was 1.0:1.0:3.0,using quick-freeze,pre-freezing 18 h in -35 ℃ refrigerator,dry-freezing 48 h to ob-tain freeze-dried powder. Compared with before freeze-drying,the freeze-dried liposomal morphology had no obvious changes, showing clear phospholipid bilayer membrane structure;the particle sizes before and after freeze-drying were (208.63 ± 1.04) nm and (223.04 ± 2.02) nm,Zeta potentials were (-15.6 ± 0.04) mV and (-19.4 ± 0.06) mV,encapsulation efficiencies were (94.62±0.49)%and(91.10±0.46)%(n=3),respectively. Compared with liposomes,liposomes freeze-dried power had good sta-bility in 12 months at 4 ℃. CONCLUSIONS:Albendazole nanoliposomes freeze-dried power is prepared successfully,its stability is superior to albendazole nanoliposomes,and the freeze-drying technology is feasible.

In order to solve the problem of selection and in vivo delivery problem in siRNA treatment, hepatitis B virus (HBV) HBx gene which could be targeted by siRNA was studied. The siRNA expression plasmid which specific inhibits HBx expression was obtained by in vitro selection via a dual-luciferase plasmid including HBx-Fluc fusion protein expression domain. The selected siRNA expression plasmid was then encapsulated in PEG-modified cationic liposome, which was devoted into pharmacodynamic studies at both cellular and animal level. The results illustrated that the cationic liposome which encapsulated siRNA expression plasmid could effectively inhibit HBx gene expression both in vitro and in vivo.
Cations ; Gene Expression Regulation, Viral ; drug effects ; Hepatitis B virus ; genetics ; Liposomes ; chemistry ; Plasmids ; RNA, Small Interfering ; chemistry ; Trans-Activators ; genetics ; metabolism

A method for automatic background recognition and removal in CR/DR images is presented in the paper. It is applied to PACS environment, significantly improving and increasing various features such as image display, image printing, image transporting and image compression.
Algorithms ; Humans ; Image Processing, Computer-Assisted ; methods ; Quality Control ; Radiographic Image Enhancement ; methods ; Radiographic Image Interpretation, Computer-Assisted ; methods ; Radiology Information Systems ; Sensitivity and Specificity ; Tomography, X-Ray Computed ; methods

Objective·To construct C-shaped cartilage rings by rabbit auricular cartilage-derived chondrocytes combing with both electrospun gelatin/ polycaprolactone(GT/PCL) nanofibrous membranes and 3D printed supporters for repairing tracheal cartilage defects.Methods·Primary chondrocytes were isolated from rabbit auricular cartilage with methods of trypsin enzyme digestion and collagenase enzyme digestion.After proliferation in vitro,the chondrocytes of passage 2 were harvested for further experiments.Ultrafine composite fibers of GT/PCL were fabricated via electrospinning.The electrospun GT/PCL membranes were tailored into rectangle shape,the length of which is 12 cm and the width is 2.5 cm.Chondrocytes were seeded on membrane at a density of 1 × 108 cells/mL.Then the membrane were rolled onto a 3D printed supporter of poly(DL-lactide-ε-caprolactone) (PLCL) material to construct a C-shaped cartilage-like complex.After 8 weeks of subcutaneous incubation in vivo,gross inspection and paraffin section staining were applied for evaluation.Results·After 8 weeks of culture in vivo,mature cartilage-like tissue were formed with open-cylindrical bellow appearance and pecific mechanical property.C-shaped rings arranged at regular intervals on the inner surface of tissue,which were similar to the normal structure of tracheal cartilages.Histological and immunohistological staining showed a large number of typical lacunar structures and extracellular matrix secretions.Conclusion·It is feasible to construct tissue engineered C-shaped cartilage tissue by combing chondrocytes with GT/PCL membrane and 3D printed PLCL supporter for tracheal cartilage repair.