
Influencing factors of early non-remission of proteinuria in patients with idiopathic membranous nephropathy
Lei Yang, Guoqin Wang, Xiaoyi Xu, Yanyan Wang, Lijun Sun, Hongrui Dong, Hong Cheng
Influencing factors of early non-remission of proteinuria in patients with idiopathic membranous nephropathy
Objective To investigate the influencing factors of non-remission of proteinuria in patients with nephrotic syndrome (NS) and idiopathic membranous nephropathy (IMN). Methods The study was a retrospective observational study. The clinical data of patients with NS who were diagnosed as IMN by renal biopsy and serum albumin recovered normal after six months of treatment were collected from Beijing Anzhen Hospital, Capital Medical University from June 1, 2010 to January 31, 2022. Patients were divided into proteinuria remission group and non-proteinuria remission group according to whether urinary protein < 3.5 g/24 h and decreased 50% from the onset. The differences of clinical and pathological characteristics between the two groups at baseline were compared. The logistic regression model was used to analyze the influencing factors of non-remission of proteinuria. Results Ninety-five NS patients with renal pathology of IMN were included in this study, with age of 57(43, 65) years old and 50 males (52.6%). There were 75 patients in the proteinuria remission group and 20 patients in the non-proteinuria remission group. Compared with the proteinuria remission group, the non-proteinuria remission group had higher baseline body mass index [(26.83±4.03) kg/m2vs. (24.68±3.97) m2, t=-2.149, P=0.034] and proportion of overweight (85.0% vs. 58.7%, χ2=4.765, P=0.029), and larger waist circumference [88.5(85.3, 101.5) cm vs. 87.0(77.5, 92.0) cm, Z=2.362, P=0.018]. Renal pathological results showed that the proportions of diabetes nephropathy (10.0% vs. 0, P=0.043) and glomerular hypertrophy (45.0% vs. 20.0%, χ2=5.227, P=0.022) were higher, and the average diameter of hypertrophic glomeruli was longer [(197.96±6.37) μm vs. (193.51±8.50) μm, t=2.029, P=0.041] in the proteinuria remission group than those in the non-proteinuria remission group. Multivariate logistic regression analysis results showed that waist circumference was an independent influencing factor of non-proteinuria remission in patients with IMN under waist circumference > 90 cm in men and >85 cm in women (OR=1.083, 95% CI 1.005-1.168, P=0.037). Conclusion Abdominal obesity is an independent risk factor of non-remission of proteinuria in NS patients with IMN after early treatment.
Glomerulonephritis, membranous / Nephrotic syndrome / Proteinuria / Early prognosis {{custom_keyword}} /
表1 蛋白尿缓解组和蛋白尿未缓解组特发性膜性肾病患者基线临床资料的比较 |
项目 | 蛋白尿缓解组(n=75) | 蛋白尿未缓解组(n=20) | 统计值(t/Z/χ 2) | P值 |
---|---|---|---|---|
年龄(岁) | 56.0(41.0,64.0) | 62.0(52.0,68.8) | 1.379 | 0.168 |
男性[例(%)] | 39(52.0) | 11(55.0) | 0.057 | 0.811 |
体重指数(kg/m2) | 24.68±3.97 | 26.83±4.03 | -2.149 | 0.034 |
超重[例(%)] | 44(58.7) | 17(85.0) | 4.765 | 0.029 |
腰围(cm) | 87.0(77.5,92.0) | 88.5(85.3,101.5) | 2.362 | 0.018 |
高血压[例(%)] | 46(61.3) | 14(70.0) | 0.510 | 0.475 |
糖尿病[例(%)] | 6(8.0) | 4(20.0) | 1.308 | 0.253 |
糖代谢异常[例(%)] | 22(29.3) | 9(45.0) | 1.763 | 0.184 |
代谢综合征[例(%)] | 23(30.7) | 9(45.0) | 1.452 | 0.228 |
肝脏病病史[例(%)] | 5(6.7) | 2(10.0) | 0.001 | 0.980 |
尿蛋白量(g/24 h) | 5.5(4.2,7.1) | 5.6(4.2,7.3) | -0.187 | 0.852 |
血清白蛋白(g/L) | 25.7(22.3,28.4) | 25.1(22.3,27.3) | -0.237 | 0.812 |
血肌酐(μmol/L) | 61.2(54.2,77.7) | 64.6(59.1,76.9) | 0.616 | 0.538 |
eGFR[ml·min-1·(1.73 m2)-1] | 98.52±23.93 | 93.72±25.69 | 0.784 | 0.435 |
血尿酸(μmol/L) | 355.0(299.8,424.8) | 383.2(314.0,447.2) | 1.005 | 0.315 |
空腹血糖(mmol/L) | 5.3(4.8,5.7) | 5.0(4.6,5.9) | -0.767 | 0.443 |
谷丙转氨酶(U/L) | 17.0(14.0,22.0) | 13.0(11.0,20.4) | -1.595 | 0.111 |
谷草转氨酶(U/L) | 22.0(19.0,27.0) | 20.0(15.0,24.0) | -1.605 | 0.109 |
三酰甘油(mmol/L) | 2.0(1.4,3.0) | 2.0(1.6,2.9) | 0.485 | 0.628 |
总胆固醇(mmol/L) | 7.3(5.8,9.0) | 7.1(6.0,8.7) | -0.346 | 0.729 |
血清PLA2R抗体阳性[例(%)] | 53(71.6)(n=74) | 12(60.0) | 0.997 | 0.318 |
血清PLA2R抗体滴度(RU/ml) | 48.3(12.0,87.4) | 37.7(5.5,101.3) | -0.495 | 0.621 |
肾活检后治疗方案[例(%)] | 7.689 | 0.040 | ||
单用环孢素 | 36(48.0) | 16(80.0) | ||
糖皮质激素联合环孢素 | 23(30.7) | 1(5.0) | ||
糖皮质激素联合环磷酰胺 | 4(5.3) | 1(5.0) | ||
其他 | 12(16.0) | 2(10.0) |
表2 两组特发性膜性肾病患者肾脏病理改变的比较 |
项目 | 蛋白尿缓解组(n=75) | 蛋白尿未缓解组(n=20) | 统计值(t/χ 2) | P值 |
---|---|---|---|---|
膜性肾病病理分期[例(%)] | 1.908 | 0.385 | ||
1期 | 24(32.0) | 9(45.0) | ||
2期 | 43(57.3) | 8(40.0) | ||
3期 | 8(10.7) | 3(15.0) | ||
IgG4阳性[例(%)]a | 65(86.7) | 17(85.0) | 0.001 | 1.000 |
多部位电子致密物沉积[例(%)] | 6(8.0) | 0(0) | 0.623 | 0.430 |
伴糖尿病肾病[例(%)] | 0(0) | 2(10.0) | 0.043 | |
伴肥胖相关肾小球病[例(%)] | 6(8.0) | 3(15.0) | 0.271 | 0.603 |
伴肾小球肥大[例(%)] | 15(20.0) | 9(45.0) | 5.227 | 0.022 |
肥大肾小球平均直径(μm,x-±s) | 193.51±8.50 | 197.96±6.37 | 2.029 | 0.041 |
伴节段硬化病变[例(%)] | 4(5.3) | 0(0) | 0.576 | |
伴缺血性肾损伤/高血压肾损伤[例(%)] | 8(10.7) | 0(0) | 1.152 | 0.283 |
缺血肾小球比例[%,M(P 25,P 75)] | 5.9(0,15.0) | 7.1(0,21.6) | 0.729 | 0.466 |
伴肾小管损伤[例(%)] | 3(4.0) | 0(0) | 1.000 | |
肾间质损伤程度分级(x-±s) | 0.91±0.63 | 1.02±0.34 | 0.764 | 0.445 |
肾组织PLA2R抗体阳性[例(%)] | 70(94.6)(n=74) | 20(100) | 1.129 | 0.575 |
表3 特发性膜性肾病患者治疗后蛋白尿未缓解的影响因素分析(多因素Logistic回归模型) |
因素 | 单因素 | 多因素 | ||||
---|---|---|---|---|---|---|
OR值 | 95% CI | P值 | OR值 | 95% CI | P值 | |
总体(n=95) | ||||||
腰围(每增加1 cm) | 1.096 | 1.019~1.177 | 0.013 | 1.083 | 1.005~1.168 | 0.037 |
性别(男/女) | 1.128 | 0.419~3.038 | 0.811 | 1.062 | 0.363~3.112 | 0.912 |
年龄(每增加1岁) | 1.022 | 0.986~1.059 | 0.230 | 1.026 | 0.984~1.068 | 0.227 |
伴肾小球肥大(无/有) | 3.273 | 1.149~9.324 | 0.026 | 2.652 | 0.871~8.073 | 0.086 |
单用环孢素者(n=52) | ||||||
腰围(每增加1 cm) | 1.126 | 1.025~1.236 | 0.013 | 1.152 | 1.022~1.297 | 0.020 |
性别(男/女) | 2.333 | 0.696~7.823 | 0.170 | 3.788 | 0.865~16.593 | 0.077 |
年龄(每增加1岁) | 1.027 | 0.981~1.074 | 0.254 | 1.062 | 0.996~1.134 | 0.068 |
伴肾小球肥大(无/有) | 2.600 | 0.766~8.821 | 0.125 | 2.566 | 0.562~11.709 | 0.224 |
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http://journal.yiigle.com/LinkIn.do?linkin_type=cma&DOI=10.3760/cma.j.cn441217-20220804-00809
杨蕾:数据收集、整理及统计,文章撰写;王国勤、程虹:研究指导、文章修改;徐潇漪、王艳艳:临床数据收集及指导;孙丽君、董鸿瑞:病理资料收集及指导
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