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Effect of steroids and relevant cytokine analysis in acute tubulointerstitial nephritis.


ABSTRACT:

Background

Acute tubulointerstitial nephritis (ATIN) is an important cause of acute kidney injury and often a potentially reversible disease. However, the role of steroids in ATIN remains controversial and the underlying mechanisms remain unresolved.

Methods

A total of 113 adult patients with biopsy-proven ATIN were recruited from three tertiary referral centers. Of 102 patients with idiopathic or drug-induced ATIN, outcomes such as renal recovery, end-stage renal disease, and all-cause mortality were compared between the steroid-treated and non-treated groups. Plasma and urine inflammatory cytokine levels at the time of biopsy were analyzed in patients (n?=?33) using a bead-based multiplex assay and compared with those of healthy individuals (n?=?40).

Results

Steroids were used in 92 (81.4%) of the total patients and in 82 (80.3%) patients with idiopathic or drug-induced ATIN. The rate of renal recovery and the risks of end-stage renal disease and mortality were not different between the steroid-treated and non-treated groups. Despite using a propensity score matching method (n?=?20 in each group), none of the outcomes were different between the two groups. Several cytokines, such as monocyte chemotactic protein-1, interferon-?, and interleukin-6 and interleukin-8 levels, were markedly elevated in plasma and urine of patients compared with those in healthy individuals. However, cytokines related to Th2 response, such as IL-10, IL-33, were not different between the two groups.

Conclusions

Steroid use does not affect the overall outcome of ATIN. Based on the fact that targeting therapy should be investigated to improve outcomes, the present cytokine results will be helpful for developing a novel therapy for ATIN.

SUBMITTER: Yun D 

PROVIDER: S-EPMC6417076 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Publications

Effect of steroids and relevant cytokine analysis in acute tubulointerstitial nephritis.

Yun Donghwan D   Jang Myoung-Jin MJ   An Jung Nam JN   Lee Jung Pyo JP   Kim Dong Ki DK   Chin Ho Jun HJ   Kim Yon Su YS   Lee Dong-Sup DS   Han Seung Seok SS  

BMC nephrology 20190312 1


<h4>Background</h4>Acute tubulointerstitial nephritis (ATIN) is an important cause of acute kidney injury and often a potentially reversible disease. However, the role of steroids in ATIN remains controversial and the underlying mechanisms remain unresolved.<h4>Methods</h4>A total of 113 adult patients with biopsy-proven ATIN were recruited from three tertiary referral centers. Of 102 patients with idiopathic or drug-induced ATIN, outcomes such as renal recovery, end-stage renal disease, and all  ...[more]

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