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中华肾病研究电子杂志 ›› 2018, Vol. 07 ›› Issue (03) : 102 -106. doi: 10.3877/cma.j.issn.2095-3216.2018.03.002

所属专题: 文献

论著

少量蛋白尿IgA肾病患者镜下血尿与病理指标的相关性分析
段姝伟1, 张岩1, 吴杰1,(), 孟金铃1, 刘述文1, 谢院生1, 蔡广研1   
  1. 1. 100853 北京,解放军总医院肾脏病科、解放军肾脏病研究所、肾脏疾病国家重点实验室、国家慢性肾病临床医学研究中心
  • 收稿日期:2018-05-19 出版日期:2018-06-28
  • 通信作者: 吴杰
  • 基金资助:
    国家科技重大专项课题中药大品种技术改造与技术提升研究的子课题(2014ZX09201021-007); 北京市科委课题(Z161100000516225)

Correlation analysis between microscopic hematuria and pathological parameters in patients with mild proteinuria

Shuwei Duan1, Yan Zhang1, Jie Wu1,(), Jinling Meng1, Shuwen Liu1, Yuansheng Xie1, Guangyan Cai1   

  1. 1. Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
  • Received:2018-05-19 Published:2018-06-28
  • Corresponding author: Jie Wu
  • About author:
    Corresponding author: Wu Jie, Email:
引用本文:

段姝伟, 张岩, 吴杰, 孟金铃, 刘述文, 谢院生, 蔡广研. 少量蛋白尿IgA肾病患者镜下血尿与病理指标的相关性分析[J]. 中华肾病研究电子杂志, 2018, 07(03): 102-106.

Shuwei Duan, Yan Zhang, Jie Wu, Jinling Meng, Shuwen Liu, Yuansheng Xie, Guangyan Cai. Correlation analysis between microscopic hematuria and pathological parameters in patients with mild proteinuria[J]. Chinese Journal of Kidney Disease Investigation(Electronic Edition), 2018, 07(03): 102-106.

目的

探索少量蛋白尿IgA肾病(IgAN)患者镜下血尿发生与病理指标的相关性。

方法

回顾性分析2007年1月1日至2012年12月31日在解放军总医院经肾穿刺活检首次诊断的原发性IgAN、尿蛋白<0.5 g/24 h且无肉眼血尿患者。采集患者肾穿刺活检前1周内的血压、尿蛋白定量、尿红细胞形态及计数、肾功能等指标。肾活检后的病理指标按照IgAN牛津分型更新版评价,采用Poisson回归分析镜下血尿水平与病理指标的相关性。

结果

共纳入尿蛋白<0.5 g/24 h的IgAN患者88例,其中无镜下血尿组22例,非满视野镜下血尿组58例,满视野镜下血尿组8例。Poisson回归分析显示在校正患者的尿蛋白和肾功能(eGFR)水平后,新月体形成(OR 6.55,95%CI 2.68~15.98)和系膜细胞增殖(OR 4.92,95%CI 1.75~13.83)与IgAN患者镜下血尿水平相关,系膜细胞增殖病变与节段硬化或球囊粘连病变存在交互作用(OR 3.82,95%CI 1.30~11.25)。

结论

在蛋白尿少于0.5 g/d的IgAN患者中,患者镜下血尿水平相关的病理因素主要是增殖性病变,包括系膜细胞增殖和新月体形成。系膜细胞增殖病变合并节段硬化和(或)球囊粘连病变,与镜下血尿水平的相关性显著增加。

Objective

To explore the correlation of microscopic hematuria with pathological parameters in IgA nephropathy (IgAN) patients with mild proteinuria.

Methods

A retrospective study was performed in primary IgAN patients with urinary protein <0.5 g/24 hours but no gross hematuria, who were first diagnosed by renal biopsy at the Chinese PLA General Hospital from January 1, 2007 to December 31, 2012. Clinical indicators were collected within 1 week before renal biopsy, including blood pressure, urinary protein quantitation, urinary red blood cell morphology and count, and renal function, etc. Pathological lesions were evaluated according to the updated Oxford classification method. The correlation of microscopic hematuria with pathological indicators was analyzed with the Poisson regression model.

Results

A total of 88 IgAN patients with urinary protein <0.5 g/24 hours were included in the study, among whom there were 22 cases without microscopic hematuria, 58 cases with non-full-field microscopic hematuria, and 8 cases with full-field microscopic hematuria. Poisson regression model analysis showed that the levels of microscopic hematuria were correlated with both the mesangial hypercellularity lesion (OR 4.92, 95%CI 1.75-13.83) and the crescents formation lesion (OR 6.55, 95%CI 2.68- 15.98), after adjustment of the patient′s urinary protein and renal function (eGFR) levels. And there is an interaction between the mesangial hypercellularity lesion and the segmental glomerulosclerosis lesion (OR 3.82, 95%CI 1.30- 11.25).

Conclusions

Proliferative lesions, including mesangial hypercellularity lesion and crescents formation lesion, were the main pathological factors associated with the microscopic hematuria in the IgAN patients with mild proteinuria (<0.5 g/24 hours). The mesangial cell proliferative lesion coexisting with the segmental sclerosis lesion had an significantly-increased correlation with the microscopic hematuria.

表1 入组IgA肾病患者的临床病理特征[±s或例数(%), n=88]
表2 根据镜下血尿程度分组比较IgA肾病患者的临床和病理指标[±s,例数(%)]
指标 无镜下血尿组(n=22) 非满视野镜下血尿组(n=58) 满视野镜下血尿组(n=8) F值或χ2 P
年龄(岁) 37.05±10.04 35.12±7.90 38.88±9.89 0.900 0.410
病史(月) 28.91±37.08 20.74±26.54 26.94±32.40 0.656 0.522
性别(男)a 17(77.27) 35(60.34) 2(25.00) 6.527 0.033
收缩压(mmHg) 122.14±14.19 121.98±13.90 126.88±19.07 0.410 0.665
舒张压(mmHg) 84.73±15.40 80.05±10.80 80.00±11.65 1.222 0.30
血红蛋白(g/L) 147.59±24.74 142.98±21.13 131.75±17.69 1.548 0.219
血清白蛋白(g/L) 43.18±3.63 41.88±3.60 40.13±4.41 2.186 0.119
血尿酸(μmol/L) 391.79±103.83 334.34±98.84 302.31±90.85 3.501 0.035
总胆固醇(mmol/L) 3.90±0.61 4.36±1.01 4.72±1.83 2.427 0.094
甘油三酯(mmol/L) 1.80±1.34 1.28±0.52 1.17±0.44 3.827 0.026
尿蛋白定量(g/d) 0.27±0.12 0.31±0.11 0.31±0.12 0.929 0.399
肌酐(μmol/L) 95.04±40.51 79.06±21.60 82.49±38.31 2.432 0.094
eGFR(ml/(min·1.73 m2) 96.08±26.23 106.71±17.67 97.67±35.70 2.142 0.124
CKD分期a ? ? ? 11.802 0.032
? 1期 13(59.09) 48(82.76) 5(62.50) ? ?
? 2期 7(31.82) 9(15.52) 1(12.50) ? ?
? 3期 2(9.09) 1(1.72) 2(25.00) ? ?
IgA(g/L) 2.92±1.08 3.24±1.13 2.78±0.57 1.095 0.339
IgG(g/L) 11.05±2.10 11.50±2.33 11.33±1.97 0.312 0.732
补体C3(g/dL) 1.08±0.19 1.04±0.22 0.95±0.23 1.201 0.306
补体C4(g/L) 0.21±0.05 0.23±0.08 0.19±0.06 1.878 0.159
M病变a ? ? ? 4.402 0.107
? M0病变 19(86.36) 40(68.97) 4(50.00) ? ?
? M1病变 3(13.64) 18(31.03) 4(50.00) ? ?
S病变a ? ? ? 6.024 0.056
? S0病变 15(68.18) 22(37.93) 3(37.50) ? ?
? S1病变 7(31.82) 36(62.07) 5(62.50) ? ?
C病变a ? ? ? 4.782 0.079
? C0病变 22(100.00) 51(87.93) 6(75.0) ? ?
? C1病变 0 7(12.07) 2(25.0) ? ?
T病变a ? ? ? 13.727 0.003
? T0病变 16(72.73) 49(84.48) 4(50.0) ? ?
? T1病变 4(18.18) 9(15.52) 1(12.50) ? ?
? T2病变 2(9.09) 0 3(37.50) ? ?
Lee氏分级a ? ? ? 7.747 0.184
? Ⅰ级 2(9.09) 0 1(12.50) ? ?
? Ⅱ级 3(13.64) 8(13.79) 0 ? ?
? Ⅲ级 15(68.18) 45(77.59) 6(75.0) ? ?
? Ⅳ级 2(9.09) 5(8.62) 1(12.50) ? ?
表3 入组IgA肾病患者病理指标对镜下血尿水平影响的相对危险度
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