Objective To investigate the correlation between knee joint line and anterior knee pain after total knee arthroplasty (TKA).Methods From January 2008 to December 2010,76 patients with osteoarthritis underwent primary TKA in our hospital,including 11 males and 65 females,aged from 47 to 83 years (average,68.88±7.61 years).Fixed-bearing posterior stabilized TKA (PFC) was used in all patients.All patients were followed up every 12 months after TKA.According to the Figgie's method,pre-and post-operative knee joint line was measured,and the changes of pre-and post-operative knee joint line were calculated.If the knee joint line was elevated,it was defined as positive; on the contrary,it was defined as negative.The Feller's patellar score was used to assess pre-and post-operative patellar function.The correlation between joint line level and Feller's patellar score was analyzed 24 months after operation.Results The joint line level ranged from-6.8 to 10.44 mm (average,2.69±3.31 mm).With the rise of the joint line,the patient's patella score decreased.There is a negative correlation between the elevated joint line level and Feller's patellar score (r=-0.763,P=0.000).The Feller's patellar score decreased with the fall of joint line level,and there is a positive correlation between them (r=0.914,P=0.000).The Feller's patellar score was higher in patients whose joint line change was less than 4 mm than that in patients whose joint line change was greater than 4 mm (t=12.648,P=0.000; t=l 1.775,P=0.000).Conclusion The joint line change was correlated to anterior knee pain after TKA with fixedbearing posterior stabilized prosthesis.The joint line change less than 4 mm can result in a better knee joint function.

AIM: To study the protective effect of cardiomyopeptidin (CMP) attributed to polypeptide on cultured myocardial cells injured by anoxia-reoxygenation.METHODS: The anoxia-reoxygenation injury model were developed, anoxia for 60 min and reoxygenation for 30 min. The effect of CMP on myocardial ultrastructure was observed. [Ca 2+ ] i was estimated with adherent cell analysis and sorting 570(ACAS 570) laser cytometer and measured with fluorescent dye Fura-2-AM, the lipid fluidity of cellular membrane was determined by fluorescence polarization technique. RESULTS: CMP could obviously improve the ultrastructure of myocardial cells and dose-dependently decrease [Ca 2+ ] i and increase the lipid fluidity of cellular membrane, CMP also could markedly reduce the chromaticity value of pseudo-colour graphic model of Ca 2+ . CONCLUSION: Cardiomyopeptidin has an obvious protective effect on cultured myocardial cells injured by anoxia-reoxygenation, this may be related to its effect of decreasing [Ca 2+ ] i and increasing lipid fluidity of cellular membrane. [

AIM: To study the protective effect of cardiomyopeptidin (CMP) attributed to polypeptide on cultured myocardial cells injured by anoxia-reoxygenation.METHODS: The anoxia-reoxygenation injury model were developed, anoxia for 60 min and reoxygenation for 30 min. The effect of CMP on myocardial ultrastructure was observed. ［Ca2＋］i was estimated with adherent cell analysis and sorting 570(ACAS 570) laser cytometer and measured with fluorescent dye Fura-2-AM, the lipid fluidity of cellular membrane was determined by fluorescence polarization technique. RESULTS: CMP could obviously improve the ultrastructure of myocardial cells and dose-dependently decrease ［Ca2＋］i and increase the lipid fluidity of cellular membrane, CMP also could markedly reduce the chromaticity value of pseudo-colour graphic model of Ca2＋. CONCLUSION: Cardiomyopeptidin has an obvious protective effect on cultured myocardial cells injured by anoxia-reoxygenation, this may be related to its effect of decreasing ［Ca2＋］i and increasing lipid fluidity of cellular membrane.

AIM:To generate monoclonal antibodies against human augmenter of liver regeneration (rhALR). METHODS:After BALB/C mice were immunized by the purified rhALR, the cells of spleen were fused with the cells of SP2/0; The titer and speciality were respectively fathomed from ascites or foster fluid by ELISA and Western-blot test. RESULTS:2 hybridoma cell lines were successfully obtained. The McAbs titer from ascites and foster fluid are respectively about 10-3-10-5 and 10-2-10-3. It is evident that the two McAbs were directed at different epitopes. CONCLUSIONS:The McAbs have higher speciality. It is significantly useful of the value that how hALR distribute in tissue organs, how the hALR signals the metabolism in the body and the control distribution of the hALR on cell growth on the translational level and so on is researched.