Adult ; Chemotherapy, Adjuvant ; Diagnosis, Differential ; Female ; Humans ; Lung Neoplasms ; secondary ; Mediastinal Neoplasms ; diagnostic imaging ; drug therapy ; pathology ; surgery ; Mediastinum ; diagnostic imaging ; pathology ; Neoplasm Recurrence, Local ; Osteosarcoma ; diagnostic imaging ; drug therapy ; pathology ; secondary ; surgery ; Tomography, X-Ray Computed

Objective: To observe the clinical efficacy of heat-sensitive moxibustion for vascular dementia and explore its mechanism. Methods: A total of 70 patients with vascular dementia were randomized into an observation group and a control group, with 35 cases in each group. The control group was treated with piracetam, and the observation group was treated with heat-sensitive moxibustion on the basis of the treatment of the control group. The treatment lasted for 8 weeks. Before and after the treatment, the mini-mental state examination (MMSE), activity of daily living (ADL) and traditional Chinese medicine (TCM) symptom scores were assessed, and the levels of acetyl choline (Ach) and homocysteine (Hcy) were measured. The efficacy was evaluated after treatment. Results: The total effective rate of the observation group was significantly higher than that of the control group (P<0.05). After treatment, the MMSE and ADL scores in the observation group decreased significantly, and were lower than those in the control group (all P<0.05); the TCM symptom score of the observation group decreased significantly (P<0.05), while that of the control group had no significant change (P>0.05); the plasma Ach level in the observation group increased significantly (P<0.05), and the Hcy level decreased significantly (P<0.05), which were statistically different from those in the control group (both P<0.05). Conclusion: Heat-sensitive moxibustion plus piracetam is effective in treating vascular dementia. It can significantly improve dementia symptoms and ADL, which may be related to the correction of plasma Ach and Hcy levels.

Objective: To observe the clinical efficacy of heat-sensitive moxibustion in intervening acute ischemic stroke. Methods: A total of 112 patients were divided into a control group and an observation group by the random number table method, with 56 cases in each group. The control group was treated with conventional treatment, and the observation group was treated with heat-sensitive moxibustion on the basis of the treatment in the control group. The National Institute of Health stroke scale (NIHSS) and modified Barthel index (MBI) were evaluated, and the intracranial hemodynamic indicators including mean velocity (Vm), pulsatility index (PI) and resistance index (RI) were recorded, and the serum levels of superoxide dismutase (SOD) and homocysteine (HCY) were measured before and after treatment. Clinical efficacy was evaluated after treatment. Results: The total effective rate of the observation group was significantly higher than that of the control group (P<0.05). After treatment, the NIHSS scores in both groups decreased significantly (both P<0.05), and the MBI scores increased significantly (both P<0.05). The improvements of NIHSS and MBI scores in the observation group were superior to those in the control group (both P<0.05). Vm in both groups increased significantly (both P<0.05), PI and RI decreased (all P<0.05), and Vm, PI and RI in the observation group were superior to those in the control group (all P<0.05). The serum levels of SOD and HCY in the observation group were significantly improved, and were statistically different from those in the control group (both P<0.05). Conclusion: Conventional treatment plus heat-sensitive moxibustion is effective in intervening acute ischemic stroke. It can promote the recovery of neurological function, improve daily activities, and improve intracranial blood flow, which may be related to the regulation of serum SOD and HCY levels.

Objective: To study the quality and transdermal properties of matrine microemulsion-based hydrogel (MBH) to provide basis for the development of the preparation.Methods: The stability of MBH was observed at 4 ℃ for 3 months and the changes of particle appearance, viscosity, pH and matrine content were observed.The transdermal permeation of MBH was investigated by a dual chamber permeation and diffusion device with excised mouse skin as the barrier.Taking rabbits as the experimental subjects, the irritation of MBH to the normal skin and damaged skin was investigated.Results: The appearance, viscosity, pH and matrine content of MBH at 4 ℃ in 3 months did not change significantly.In vitro transdermal test showed that MBH had a good penetration rate on mouse skin, and no skin irritation occurred after single or multiple administrations.Conclusion: MBH has good stability and high rate of transdermal penetration without skin irritation, which is a promising drug delivery system of matrine with good application prospects.

Objective To explore the inhibitory effect of astragalus polysaccharide (APS) on the proliferation of human erythroleukemia K562 cells and its mechanisms.Methods After K562 cells (purchased from Shanghai cell bank of chinese academy of science) were treated with different concentrations (0 mg/L,100 mg/L,200 mg/L and 400 mg/L) of APS.The influences of APS on the growth rate,doubling time and cell cycle distribution of K562 cells were observed by methyl thiazolyl tetra-zolium assay (MTF) and flow cytometry,respectively.Furthermore,the reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting assay were used to detect the expressions of Cyclin A,Cyclin B,Cyclin E and p21 gene at the mRNA and protein levels,respectively.Results MTT assay findings showed that,compared to the control group (0 mg/L APS),growth rates of K562 cells treated with 100 mg/L,200 mg/L and 400 mg/L APS decreased significantly (all P ＜ 0.01),and the doubling times lengthened significantly (all P ＜ 0.01).Flow cytometry findings revealed that,compared to the control group,the G1 phase cells in K562 cells of APS group increased significantly (P ＜0.01),while the S and G2/M phase cells decreased significantly (all P ＜ 0.01).RT-PCR and Western blotting results indicated that Cyclin B and Cyclin E expression of K562 cells at the mRNA and protein levels in the APS group were significantly lower than those of the control group(all P ＜ 0.01),whereas p21 expression was significantly enhanced at mRNA and protein levels (P ＜ 0.01),and Cyclin A expression was not significantly different at mRNA and protein levels between the 2 groups (all P ＞ 0.05).Conclusions APS could inhibit the proliferation of human erythroleukemia K562 cells.APS could inhibit the proliferation of K562 cells by down-regulating the expression of Cyclin B and Cyclin E and up-regulating the expression of p21.

AIMTo investigate the cellular uptake of monostearin solid lipid nanoparticles (MSLN) and the influence on the cellular uptake by MSLN modified with PEG2000 in human-type II cell alveolar epithelial cell line (A549) and murine macrophages cell line (J774A1).

METHODSMSLN were prepared by a novel solvent diffusion method. The particle size distribution and zeta potential of MSLN, measured by light scattering and electrophoretic mobility, were investigated. The cytotoxicity of MSLN and MTX-loaded MSLN in A549 cells were performed by the MTT method. Rhodamine B was incorporated into solid lipid nanoparticles as fluorescent marker, after PEG2000 integrating monostearin during preparation, the cellular uptake of MSLN by A549 and J774A1 cell lines were determined spectrofluorimetrically.

RESULTSThe IC50 of MSLN and MTX-loaded MSLN on A549 cells were 227.56 microg x mL(-1) and 71.37 microg x mL(-1), respectively. The percentage of cellular uptake showed a negative correlation to the concentration of MSLN in incubation medium and the internalization behaved rapidly. Contrary to situation in J774A1 cell line, internalization of solid lipid nanoparticles was promoted with increasing the content of PEG2000 incorporated into MSLN in A549 cell line.

CONCLUSIONAfter modifying MSLN with PEG2000, it represents relative lower phagocytosis by J774A1 cell line and higher uptake in A549 cell line.

Adenocarcinoma ; metabolism ; pathology ; Animals ; Cell Line ; Cell Line, Tumor ; Cell Survival ; drug effects ; Drug Carriers ; Drug Delivery Systems ; Glycerides ; chemistry ; metabolism ; toxicity ; Humans ; Lung Neoplasms ; metabolism ; pathology ; Macrophages ; cytology ; Mice ; Nanotechnology ; Particle Size ; Phagocytosis

Adult ; Antibodies, Monoclonal ; metabolism ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Cyclophosphamide ; therapeutic use ; Diagnosis, Differential ; Doxorubicin ; therapeutic use ; Follow-Up Studies ; Humans ; Leukocyte Common Antigens ; metabolism ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; metabolism ; pathology ; Male ; Mucin-1 ; metabolism ; Prednisone ; therapeutic use ; Receptor Protein-Tyrosine Kinases ; metabolism ; Vincristine ; therapeutic use

Objective To evaluate the effect of operation on breast duct fishtula. Methods 41 patients with breast duct fitula were subjected to fistulectomy or mastectomy. Results All patients had no re ccurrence after operation from 0.5 to 17 years. The clinical analysis showed that the causes of breast duct fistula were bacterial infection, retracted nipple, tissuration in the middle of nipple and breast duct dialation. Conclusions Fistulectomy or mastectomy is the most effective treatment of breast duct fistula.

The hexane extract from marine actinomycetes 124092 showed potent inhibition on B16 cell line by MTT assay. The hexane extract was fractionationed on silica gel column by vacuum liquid chromatography to afford 6 fractions(Fr1~Fr6), and Fr6 showed cytotoxic activity. To determine the bioacitve components of hexane extract, Fr6 was analyzed by GC/MS. The main components were identified as palmitic acid (11.76%), oleic acid (12.16%), linoleic acid (14.77%), and lactobacillic acid (61.31%). It have been reported that palmitic acid, oleic acid, and linoleic acid possess cytotoxic activity on rat ascites tumor cells and linoleic acid have suppressive effect on human lung adenocarcinoma cells.

The optimization on liquid fermentation and purification of the fibrinolytic enzyme from Stenotrophomonas maltophilia(DR-929) was investigated.The results showed the best fermentation are amidulin 2.0%,soya flour 1.0%,yeast extract 0.5%,NaCl 1.0%,CaCl2 0.02%,MgSO4 0.05%,inoculum of 36 hours,fermental time 4d,initial pH 8.0 or 9.0,temperature 25℃,volume of media 30ml,volume of inoculum 5% or 6%.The purification process includes the following steps: removing cells by the centrifugation,25%~70% saturation ammonium sulfate precipitation,HIC with Phenyl FF(high sub),IEC with Q-Sepharose FF,gel filtration chromatography with Superdex 75.SDS-PAGE electrophoresis was used to examine the purification effect,and the results indicated that homogeneous strap in SDS-PAGE and has a molecular weight around 28.3kDa.The purification factor and activity recovery of the fibrinolytic enzyme are 271.5 and 24.5%,respectively.