Effect of heme oxygenase-1 inducer hemin on chronic renal failure rats.
The role of HO-1 inducer, hemin, in chronic renal failure (CRF) rats and its possible mechanism of action was studied. 5/6 subtotal nephrectomy was performed to establish chronic renal failure model. Rats were randomly assigned to 4 groups: sham-operated group, CRF group, ferrous gluconate group and hemin group. At the 10th week after operation, serum creatinine, BUN, RBC, HGB and HCT were measured. Renal pathologic changes were observed. RT-PCR and immunohistochemistry were used to detect the expression and distribution of HO-1. RT-PCR and radioimmunoassay was used to determine the expression of ET-1 in the kidney and plasma. The results showed that as compared with CRF group, serum creatinine and BUN in hemin group were reduced significantly and nephrogenic anemia was improved markedly. Glomerular mesangial proliferation and interstitial lesion were also ameliorated significantly. Hemin not only increased the expression of HO-1 but also reduced the expression of ET-1 in the kidney. The level of ET-1 protein in the plasma was also reduced after hemin treatment. Most of these indexes were not obviously changed in ferrous gluconate group. It was suggested that through inducing the expression of HO-1 and reducing the level of ET-1 in the kidney and plasma, hemin plays an important protective role in 5/6 subtotal nephrectomized rats.
Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Shenwei
S
Liu
Liming
L
Shi
Xiaocheng
X
Liu
D000818:Animals; D019332:Endothelin-1 / Q000096:biosynthesis / Q000235:genetics; D051547:Heme Oxygenase-1 / Q000096:biosynthesis* / Q000235:genetics; D006427:Hemin / Q000494:pharmacology*; D007668:Kidney / Q000187:drug effects / Q000201:enzymology* / Q000473:pathology; D007676:Kidney Failure, Chronic / Q000201:enzymology* / Q000209:etiology / Q000473:pathology; D008297:Male; D009392:Nephrectomy; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley
D019332:Endothelin-1; D006427:Hemin; D051547:Heme Oxygenase-1