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Expression of NGAL in serum and renal tissues of patients with primary nephrotic syndrome and acute kidney injury

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF PATHOPHYSIOLOGY
Issue:
11
DOI:
10.3969/j.issn.1000-4718.2012.11.013
Key Word:
原发性肾病综合征;中性粒细胞明胶酶相关脂质运载蛋白;急性肾损伤

Abstract: 目的:检测原发性肾病综合征(PNS)患者血清及肾组织中中性粒细胞明胶酶相关脂质运载蛋白(NGAL)的水平,探讨PNS合并急性肾损伤(AKI)时患者血清及肾组织中NGAL浓度的变化.方法:72例PNS患者根据病理结果分为:(1)PNS合并急性肾小管坏死(ATN)组 15例,其中微小病变(MCD)合并ATN 10例,系膜增生(MsPGN)合并ATN 5例;(2)PNS不合并ATN组 57例,其中MCD组 24例,膜性肾病(MN)组23例和MsPGN 组10例.15例健康体检者的血液及5例正常肾组织作为正常对照组.采用ELISA检测血清NGAL的水平;采用免疫组化法检测肾组织中NGAL的表达.结果:(1)PNS患者血清NGAL水平及肾组织中NGAL表达明显高于正常对照组(P<0.05),其中MN组较MCD组和MsPGN组血清NGAL水平明显升高(P<0.05).(2)MCD合并ATN组和MsPGN合并ATN组血清NGAL水平及肾组织中NGAL表达较不合并ATN组显著升高(P<0.05).(3)血清中NGAL与24 h尿蛋白定量、血尿素氮和血肌酐呈正相关(P<0.05),与血清白蛋白和β2微球蛋白无明显相关性(P>0.05);血清中NGAL与肾组织NGAL的表达呈正相关(P<0.01).结论:血清NGAL可能作为判断原发性肾病综合征并发急性肾损伤的早期、无创、敏感指标.

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