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Immunology, Endocrine & Metabolic Agents in Medicinal Chemistry (Discontinued)


ISSN (Print): 1871-5222
ISSN (Online): 1875-6115

An Angiotensin Converting Enzyme Inhibitor Suppresses Contrast Media Induced Renal Dysfunction in a Murine Model of Subtotal Nephrectomy

Author(s): Masahito Ogawa, Jun-ichi Suzuki and Mitsuaki Isobe

Volume 13, Issue 3, 2013

Page: [176 - 184] Pages: 9

DOI: 10.2174/18715222113139990010

Price: $65


Backgrounds: Contrast media (CM)-induced nephropathy (CIN) affects morbidity and mortality in humans. Although CIN is mediated by several factors including the renin-angiotensin system (RAS), little is known about the pathophysiology. To clarify the mechanism, we developed a novel murine CIN model.

Methods: We made 5/6 subtotal nephrectomy (NTX) and administered CM (iopamidol) intravenously into the mice 4 weeks after NTX. Mice received an angiotensin converting enzyme inhibitor (ACEI, n=6), an angiotensin II receptor blocker (ARB, n=4), or ACEI plus a bradykinin B2 receptor antagonist (Hoe-140, n=5) daily.

Results: Serum creatinine levels were significantly elevated in the NTX group compared to the non-NTX group on day 28. A day after CM injection, creatinine levels were additionally elevated in the non-treated group. While ACEI treatment significantly suppressed the creatinine levels, ARB treatment did not decrease the levels. Hoe-140 negated ACEI’s ability to suppress renal dysfunction.

Conclusion: ACEI treatment may be useful for the prevention of CM-induced nephropathy.

Keywords: Angiotensin converting enzyme, bradykinin, contrast media, murine model, renal dysfunction, renin angiotensin system.

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