Objective To investigate the influence and the clinical significance of interleukin-2 (IL-2) on T lymphocyte subgroup after chemotherapy in acute myeloid leukemia patients. Methods Fiftyfour acute myeloid leukemia patients were divided into treatment group (chemotherapy combined with IL-2,28 cases) and control group (pure chemotherapy,26 cases) by radom digits table. In treatment group, IL-2400 000 U was dripped after chemotherapy for 14 days. Then the T lymphocyte subgroup change before and after treatment was examined. Results After 14 days' treatment, the levels of CD3 (0.6026±0.2275 ),CD4(0.4972±0.1224),CD56(0.3016±0.1053 ) in treatment group were significantly higher than those before treatment(0.3926±0.2010,0.2264±0.1190,0.1729±0.1226) and in control group (0.4352±0.1930,0.2738±0.1362,0.1937±0.1268)(P< 0.05). Conclusion IL-2 treatment can obviously raise the levels of T lymphocyte subgroup and can raise the immunologic function.

BACKGROUND:At present, there stil remain controversies concerning the choice of tibial slope in unicompartmental knee arthroplasty, and the related biomechanical studies are rare. OBJECTIVE:To find the rational tibial slope in mobile-bearing unicompartmental knee arthroplasty through the results of finite element analysis. METHODS:A finite element model of normal knee was established and validated using the techniques of three-dimensional reconstruction and finite element pre-processing. Then the finite element models of unicompartmental knee arthroplasty with different tibial slopes were established based on the normal knee model. The finite element analyses were conducted after the boundary conditions and loads were unified. RESULTS AND CONCLUSION: The finite element models of unicompartmental knee arthroplasty with different tibial slopes were established successfuly. The results of the finite element analyses indicated that the posteromedial tibial cortical and cancelous bone stress increased gradualy as the posterior slope increasing, as wel as the load distribution and the cartilage contact pressures of lateral compartment. The anteromedial tibial cortical stress increased significantly with the anterior slope. A posterior tibial slope of 0°-7° can be recommended when implanting a mobile-bearing unicompartmental knee arthroplasty.

Objective:To investigate the clinical efficacy and patient and partner's satisfaction with penile prosthesis implantation(PPI) for treating Chinese patients with severe erectile dysfunction(SED).Methods:One hundred and sixty-eight SED patients were successfully treated by PPI from July 2000 to June 2010.Of the 146(86.9%) patients who had been followed up over 6 months post-operation,36(24.7%) had been implanted with one piece malleable prosthesis(AMS650) and 110(75.3%) with three piece inflatable prosthesis(AMS700CXM).All the patients had been followed up by using international index of erectile dysfunction(IIEF5),Quality of Life Score(QOL) for evaluating clinical efficacy and using Visual Analogue Scale(VAS) for evaluating patient and partner's satisfaction and the duration of the follow-up was 6 to 119 months.Results:The mean age of patients was 35.9?12.1 years(20 to 75 years),All the operations were successful and sexual intercourse with PPI was performed post 4 to 6 weeks without severe complications like infection and erosion.The prosthesis survive rate and frequent sexual intercourse rate were 98.6% and 87.7% respectively.IIEF5 scores pre and post PPI were 6.3?1.7 and 21.3?1.6 respectively,the QOL scores pre and post PPI were 5.1?0.9 and 1.5?0.5 respectively,and both of them showed significant improvement(P