Matching Human Unilateral AKI, a Reverse Translational Approach to Investigate Kidney Recovery after Ischemia
- Authors
- Soranno, Danielle E.; Gil, Hyo-Wook; Kirkbride-Romeo, Lara; Altmann, Christopher; Montford, John R.; Yang, Haichun; Levine, Ani; Buchanan, Jane; Faubel, Sarah
- Issue Date
- Jun-2019
- Publisher
- Lippincott Williams & Wilkins Ltd.
- Keywords
- 의약학
- Citation
- Journal of the American Society of Nephrology : JASN, v.30, no.6, pp 990 - 1005
- Pages
- 16
- Journal Title
- Journal of the American Society of Nephrology : JASN
- Volume
- 30
- Number
- 6
- Start Page
- 990
- End Page
- 1005
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/4484
- DOI
- 10.1681/ASN.2018080808
- ISSN
- 1046-6673
1533-3450
- Abstract
- Background The duration of renal ischemia that is associated with (or leads to) renal injury in patients is uncertain, and a reverse translational research approach has been proposed to improve animal models of AKI to facilitate clinical translatability. We developed a two murine models of unilateral renal ischemia to match a recently published human study that investigated renal injury after unilateral renal ischemia during partial nephrectomy. Methods Eight 10-week-old C57BL/6 male mice underwent left UiAKI or sham procedure, with or without intra-operative ice packs. Functional, histological, and biomarker outcomes were followed at 2, 6 and 24 hours, or 14 or 28 days later. The 14 and 28 day cohorts were duplicated such that contralateral nephrectomy could be performed 3 days prior to sacrifice with functional measurements obtained to isolate the glomerular filtration rate of the injured kidney. Results The short-term outcomes correlated with the human study findings with urine and serum biomarkers of injury peaking around 24 hours and then normalizing, and reassuring immediate histological outcomes. Functional and histological outcomes at the later time-points (14 and 28 days) demonstrate an increase in fibrosis markers, and a reduction in glomerular filtration rate in the injured kidney, corresponding to the duration of ischemia, while serum and urine biomarkers remained reassuring. Conclusions Our findings suggest that clinically available biomarkers of renal function are falsely reassuring against long-term injury following UiAKI, and that the duration of ischemia correlates with impaired function and increased fibrosis.
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