1.Randomized study of low molecular weight heparin (LMWH) plus chemtherapy in advanced non-small cell lung cancer
China Oncology 1998;0(04):-
Purpose: To evaluate the efficacy, safety and survival of low molecular weight heparin ( LMWH) plus chemotherapy in patients with advanced non-small cell lung cancer. Methods: 46 patients with NSCLC were randomized into chemotherapy plus LMWH. (study group) and chemotherapy only( control group). Both groups received two cycles of MVP regimen (MMC 6 mg/m2, YDS 3 mg/m2 x 2, DDP 90 mg/m2). Patients in the study group were treated with LMWH 5000u twice daily from the third day before chemtherapy up to 7 days. Results: The response rate was 56. 5% (13/23) for the study group and 39. l%(9/23) for the control group. Median survival time( MST) and 1-year survival rate were 12, 1 months(95%CI:8.52~14.64) and 52.2% for the study group compare 8.4 months(95%CI:6.15 ~ 10. 85) and 34. 8% for the control group. There were significant differences for MST( 12. 1 vs 8. 4) and 1 year survival rate(52. 2% vs 34. 8%) in the study group as compared to the control group. No difference in response rate and toxicities were found between the two groups. Conclusions: Chemotherapy( MVP regimen) plus LMWH is effective and safe. Prolonged survival was observed in patients who received MVP regimen plus LMWH.
7. Optimization of solid lipid nanoparticles of silymarin by using Box-Behnken experimental design
Chinese Traditional and Herbal Drugs 2011;42(11):2221-2225
Objective: To optimize the formulation parameters of solid lipid nanoparticles (SLN) of Silymarin by Box-Behnken experimental design. Methods: A three-factor and three-level Box-Behnken experimental design was employed using emulsion evaporation-low temperature solidification technique to prepare SLN with Silymarin as model drug. Response surface methodology was used to investigate the factors affecting entrapment efficiency (EE), drug loading (DL), and particle size. Binomial mathematical model-optimized formulation was established with EE, DL, and particle size as response values. Results: The optimal formulation was as follows: the amount of glycerol monostearate was 5.05%, the concentration of Poloxamer 188 was 7.25%, and the amount of drug was 15%. Conclusion: The Box-Behnken experimental design could be used to optimize the SLN of silymarin.
8.Technetium [99Tc] methylenediphosphonate inhibits osteoclast formation from PBMCs in patients with rheumatoid arthritis
Ying JI ; Xiaocong HUO ; Hao ZHANG
Journal of Central South University(Medical Sciences) 2009;34(7):684-688
Objective To observe the influence of technetium [99Tc] methylenedipho-honate (99Tc-MDP) on osteoclastogenesis induced by receptor activator of NF-κB ligand (RANKL) and macrophage-colony stimulating factor (M-CSF)in peripheral blood mononuclear cells in patients with rheumatoid arthritis, and to study the mechanism of 99Tc-MDP in osteoclast differentiation. Methods The monocytes/macrophages were isolated from peripheral blood in patients with rheumatoid arthri-tis, incubated in RPMI-1640 with receptor activator of NF-κB ligand (RANKL, 25 μg/L), macro-phage-colony stimulating factor (M-CSF, 25μg/L ) and different concentrations of 99Tc-MDP (5, 10, 20,and 50 mg/L) for 4,12, and 20 days. Tartrate resistant acid phosphatase staining was used to observe the formation of osteoclasts. Results After 12 or 16 days culture of peripheral blood mononuclear cells, plenty of large nultinuclear cells could be found on the coverslips. 99Tc-MDP markedly inhibited those changes and the inhibitory effects were increased as the concentration of 99Tc-MDP increased (P<0.05). Conclusion 99Tc-MDP probably has some protective effect on rheumatoid arthritis by inhibiting osteoclast formation.
10.Establishment of Model of Diffuse Mesangioproliferation Complicated With Focal Segmentally Glomerulosclerosis Model of Rat
Hao ZHAN ; Longzhen JI ; Kun WU
Journal of Chinese Physician 2001;0(08):-
Objective To establish a animal model for diffusion mesangioproliferation complicating focal segmentally glomerulosclerosis.Methods The models were established in the seventieth day by repetitive injection of 4mg/kg and 3mg/kg adriamycin to the SD rats in the 7th and 30th day after removal of their right kidneys.Results Serious edema, profuse albuminuria, hypoalbuminemia, hyperlipemia and renal failure were presented. Simultaneously, diffuse medium- or serious-grade proliferation of mesangial matrix, slight-grade proliferation of mesangial cells, segmental sclerosis of 22% of glomeruli, and overexpression of PDGF-B and bFGF in glomeruli were showed by pathologic examination, computerized image analysis and immunohistochemistry staining.Conclusions The models established in the transition stage from mesangioproliferation to glomerulosclerosis are helpful to study mechanisms and take measures for prevention and cure of chronic glomerulonephritis.