Objective To evaluate the therapeutic effect of bone marrow mesenchymal stem cells (BMSC) transplantation via renal artery in treating experimental rats with adriamycin-induced chronic nephro -pathy.Methods A total of 50 male Sprague-Dawley (SD) rats were used as experimental animals.Two rats were used for the isolation and culture of BMSC.Twelve rats were designed as blank control group (group N);in other 36 rats adriamycin was injected through caudal vein to establish rat models of chronic nephropathy,these 36 rats were randomly and equally divided into three groups with 12 rats in each group:control group (group C,n=12),BMSC transplantation via renal artery group (group A,n=12),and BMSC transplantation via caudal vein group (group V,n=12).For the rats of group N,the same amount of normal saline was injected through caudal vein.Results At each observation point,the levels of blood urea nitrogen,serum creatinine,24 h urinary protein and 24 h urinary microprotein in group A,V and C were remarkably higher than those in group N (P＜0.01).One and two weeks after BMSC transplantation,the 24 h urinary microprotein level in group A was significantly lower than that in group C (P＜0.01);the serum creatinine level in group A was significantly lower than that in group C and group V (P＜0.01).One week after BMSC transplantation,both the 24 h urinary protein level and 24 h urinary microprotein level in group A were strikingly lower than those in group V (P＜0.01),but two weeks after BMSC transplantation these differences between group A and group V became not statistically significant.Conclusion BMSC transplantation via renal artery can improve cell-homing efficiency and improve the repair of damaged tissue as well.

Objective To evaluate the clinical application of high quality for super-selective renal artery embolization (SRAE) in treating bleeding after percutaneous nephrolithotomy (PCNL).Methods 134 patients received percutaneous nephrolithotomy were divided into control group (67 patients) and observation group (67 patients).All of patients with serious bleeding after PCNL were given SRAE in the Second Affiliated Hospital of Kunming Medical College from June 2010 to June 2015.At the same time,we gave high quality nursing to observation group.The patients in control group received routine nursing.The effect of nursing was observed.Results The degree of hematuria disappear of the patients in observation group was higher than that in control group (P＜ 0.05).There were fewer complications in observation group.In the sixth month after discharge,none of them had obvious renal impairment.No recurrence of hematuria,pus kidney and urinary cyst was tested.All cases were satisfied with the treatment.Conclusion It's the key to prevent serious complications and cure successfully with effective and timely supervision and high quality nursing care during the perioperation of SRAE in treating bleeding after PCNL.

Objective To compare the repair effect on renal function between different times of bone marrow mesenchymal stem cells (BMSCs) transplant via renal artery route in experimental rats with adriamycininduced nephropathy.Methods Adriamycin-induced nephropathy model was established in 32 rats through injection of adriamycin though the caudal vein.Based on the scheduled times of BMSCs transplant,the experimental rats were randomly and equally divided into M0 group (zero time),M1 group (one time),M2group (2 times) and M3 group (3 times) with 8 rats in each group.Other 8 SD rats were used as normal control group (N group).Single dose of 0.5 rnl BMSC suspension (2×106 cells/ml) was transplanted to the rats of M0 group (zero time),M1 group (one time),M2 group (2 times) and M3 group (3 times),for the rats of the groups not receiving BMSC transplant a single dose of 0.5 ml L-DMEM culture medium,used as a placebo,was adopted to replace BMSC suspension.The transplant interval was one week.Before transplant as well as one and two weeks after last time of transplant,the serum urea nitrogen,serum creatinine,24 h urine protein and 24 h urine microprotein were tested,and one week after last time of transplant pathological sections were made for laser focusing microscope examination to observe renal pathological changes and the distribution of BMSC cells in the kidney.Results The values of serum urea nitrogen,serum creatinine,24 h urine protein and 24 h urine microprotein determined at each observation time point in M0 group,M1 group,M2 group and M3 group were significantly higher than those in N group (P＜0.001).The values of 24 h urine protein and 24 h urine microprotein determined at one week after last time of transplant in M2 group and M3 group were strikingly lower than those in M1 group (P＜0.05),but these differences between M2 group and M3 group were not statistically significant (P=0.063).Conclusion For the treatment of adriamycin-induced nephropathy in experimental rats,two times of using BMSCs transplant via renal artery route can achieve optimal curative effect.

Objective To evaluate the therapeutic effect of bone marrow mesenchymal stem cell (MSC) infusion transplantation via renal artery and via caudal vein in treating chronic kidney disease (CKD) in rats,and to compare the expressions of aquaporin1 (AQP1) and aquaporin2 (AQP2) between the two transplantation routes.Methods A total of 50 male SD rats were selected for this experiment.Two experimental rats were used to make preparation of bone marrow MSC.CKD model was established with infusion of adriamycin via caudal vein in 36 rats.The 36 CKD models were randomly divided into adriamycininduced renal failure model control group (A-C group,n=12),MSC transplantation through the right renal artery group (M-A group,n=12) and MSC transplantation through the caudal vein group (M-V group,n=12).The remaining 12 male SD rats were used as the blank control group (N group).One week after the last bone marrow MSC transplantation,the 24 h urine volume,24 h urinary protein content,serum sodium content and serum albumin level were measured,and AQP1 and AQP2 expressions in the kidney tissue were determined by immunohistochemistry.Results Compared with A-C group,the serum albumin level and 24h urine volume in both M-V group and M-A group were significantly increased (P＜0.05),while 24h urinary protein content and serum sodium content were remarkably decreased (P＜0.05).The 24h urinary protein content in the M-A group was obviously lower than that in the M-V group (P＜0.05).The AQP1 and AQP2 expressions in the kidney tissue in both M-V group and M-A group were strikingly lower than those in the A-C group (P＜ 0.05),but no statistically significant differences in AQP1 and AQP2 expressions existed between the M-V group and the M-A group (P＞0.05).Conclusion MSC transplantation can increase serum albumin,and lower urinary protein,serum sodium and the expressions of AQP1 and AQP2 in renal parenchymal cells,which has the effect on repairing renal injury of adriamycin-induced CKD rats.For a given period of time,the clinical curative effect of MSC transplantation via renal artery is better than that of MSC transplantation via peripheral vein,but the difference in curative effect between the two MSC transplantation pathways has no obvious correlation with AQP1 and AQP2 expressions.