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Rosuvastatin pretreatment suppresses distant organ injury following unilateral renal ischemia‐reperfusion in hypertensive Dahl salt‐sensitive rats
Author(s) -
Kanno Makoto,
Nakayama Masaaki,
Zhu WanJun,
Hayashi Yoshimitsu,
Kazama Junichiro J
Publication year - 2018
Publication title -
nephrology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 61
eISSN - 1440-1797
pISSN - 1320-5358
DOI - 10.1111/nep.13169
Subject(s) - medicine , rosuvastatin , kidney , malondialdehyde , ischemia , endocrinology , creatinine , oxidative stress , superoxide dismutase , inflammation , infiltration (hvac) , urology , physics , thermodynamics
Aim Ischaemia‐reperfusion (I/R) induces distant organ injury (DOI) via inflammation and oxidative stress. Statins have anti‐inflammatory and anti‐oxidant effects independent of their cholesterol‐lowering properties. To clarify whether statins could suppress DOI, we investigated the effect of rosuvastatin (RO) on the contralateral kidney following unilateral renal I/R. Methods Dahl salt‐sensitive rats (6 weeks old) were randomly divided into four groups: sham, sham with RO, I/R, and I/R with RO. All rats were fed a high‐salt (8%) diet for 6 weeks. RO (10 mg/kg per day) was pre‐administered by supplementation to the drinking water for 2 weeks before I/R. The rats then underwent unilateral renal I/R (ischemia for 45 min). Three days after I/R, laboratory data, histological changes and protein expression levels of the contralateral kidney were assessed. Results I/R significantly elevated serum creatinine and malondialdehyde levels and induced a significantly higher glomerular sclerosis index and tubular dilation area of the contralateral kidney, with about 2‐fold infiltration of ED‐1‐positive cells. In the I/R group, protein expression of superoxide dismutase (SOD) of the contralateral kidney was reduced to about 50% of the sham group. RO‐pretreatment significantly suppressed all of these changes following I/R. Conclusion RO‐pretreatment diminished contralateral kidney injury with the suppression of ED‐1‐positive cell infiltration and SOD reduction after I/R. RO appears to have a protective effect on DOI by its anti‐inflammatory and anti‐oxidant effects.