alexa Chronological Change of the Serum IgA/C3 Ratio Indicate
ISSN: 2376-0311

JBR Journal of Clinical Diagnosis and Research
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Research Article

Chronological Change of the Serum IgA/C3 Ratio Indicates the Efficacy of Tonsillectomy for IgA Nephropathy

Yoshio Shimizu1,2,3*, Takashi Kobayashi2,4, Hitoshi Suzuki2,4, Yusuke Suzuki2,4, Satoshi Horikoshi4 and Yasuhiko Tomino2,4

1Nephrology Department, Juntendo University, Shizuoka Hospital, Izunokuni, Shizuoka, Japan

2The Clinical Research Project for Intensive Therapy of Chronic Kidney Diseases (CKD), Juntendo University Faculty of Medicine, Japan

3Shizuoka Medical Research Center for Disaster, Juntendo Universit, Japan

4Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan

Corresponding Author:
Yoshio Shimizu
Nephrology Department, Juntendo University, Shizuoka Hospital, Izunokuni, Shizuoka, Japan
Tel: +81-55-948-3111
Fax: +81-55-946-0858
E-mail: [email protected]

Received Date: October 22, 2016; Accepted Date: November 12, 2016; Published Date: November 16, 2016

Citation: Shimizu Y, Kobayashi T, Suzuki H, Suzuki Y, Horikoshi S, et al. (2016) Chronological Change of the Serum IgA/C3 Ratio Indicates the Efficacy of Tonsillectomy for IgA Nephropathy. J Clin Diagn Res 4:132. doi: 10.4172/2376- 0311.1000132

Copyright: © 2016 Shimizu Y, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background/aims: Although the serum IgA/C3 ratio is a good biomarker to predict the diagnosis, histological findings, and prognosis of IgA nephropathy (IgAN), the chronological change of the IgA/C3 ratio has not been discussed. The present study evaluates the chronological change of the IgA/C3 ratio. Methods: The serum IgA/C3 ratio of 43 IgAN patients was measured at the time of biopsy and on the nearest consultation day in an outpatient clinic since April 30th, 2014. The change rate of the serum IgA/C3 ratio (⊿IgA/C3/ year) was calculated. The correlation between ⊿IgA/C3/year and other parameters, including the change rate of serum creatinine (⊿Cr/year), clinical and histological grades, and the risk stratification for end-stage kidney disease (ESKD) in IgAN patients determined by Japanese Society of Nephrology (JSN). Results: The patients with tonsillectomy had a smaller ⊿IgA/C3/year than those without tonsillectomy. ⊿IgA/C3/ year was positively correlated with ⊿Cr/year. ⊿IgA/C3/year decreased along with the severity of histological grade, clinical grade, and ESKD risk. The patients with a combination of tonsillectomy and steroid pulse therapy show a strong down-regulation of ⊿IgA/C3/year and conserved their renal function. A multiple regression analysis revealed that significant enhancers for ⊿IgA/C3/year are tonsillectomy and ESKD risk grade 3, and that those for ⊿Cr/year are tonsillectomy, steroid therapy, and the clinical grade. Conclusion: The serum IgA/C3 ratio does not only show the activity of IgAN, but also the chronological change of the IgA/C3 ratio indicates the efficacy of tonsillectomy for IgAN patients.

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