Lack of a role for inducible nitric oxide synthase in an experimental model of nephrotic syndrome.
Lack of a role for inducible nitric oxide synthase in an experimental model of nephrotic syndrome.
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在肾病综合征的实验模型中缺乏诱导型一氧化氮合酶的作用。
DOI：
10.1016/s0006-2952(00)00308-7
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发表时间：
2000
影响因子：
5.8
通讯作者：
Mayeux,PR
中科院分区：
文献类型：
--
作者：
Walker,LM;Shah,SV;Mayeux,PR
Puromycin aminonucleoside (PAN) administration in rats produces an experimental model of nephrotic syndrome characterized by glomerular epithelial cell injury and proteinuria. The purpose of this study was to examine the role of nitric oxide (NO) in this model of minimal change glomerular disease. Aminoguanidine (AG) was used to inhibit inducible nitric oxide synthase (iNOS). Sprague–Dawley rats were divided into Control (N = 9), PAN (N = 14), AG (N = 2), and PAN + AG (N = 12) treatment groups. Control animals received saline (i.v.), PAN animals received PAN (75 mg/kg, i.v.), and PAN + AG animals received PAN plus AG (50 mg/kg, i.p., twice daily). AG animals received a saline injection (i.v.) on day 0 in the place of PAN and then AG on the same schedule as the PAN + AG group. Animals were kept in metabolic cages, and urinary protein excretion and nitrite (NO2−) excretion were measured daily. PAN administration increased urinary NO2−excretion by day 2, and levels remained elevated through day 7. AG prevented this PAN-induced increase in urinary NO2−excretion. Plasma nitrate (NO3−) and NO2−(NOx) concentrations were also increased in the PAN and PAN + AG groups. iNOS protein expression was not detected in either the glomeruli or the cortex at day 7. Proteinuria developed in PAN animals on day 4 and increased steadily through day 7. PAN + AG animals showed a pattern similar to that of the PAN group. These results indicated that in contrast to models of proliferative glomerulonephritis, NO formation during PAN-induced nephrotic syndrome is increased but does not participate in the development of glomerular injury as measured by proteinuria.
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DOI：
--
发表时间：
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期刊：
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DOI：
--
发表时间：
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期刊：
Molecular pharmacology.
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