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| EFFECTS OF NONSTEROIDAL ANTIINFLAMMATORY DRUGS UPON INTRARENAL BLOOD-FLOW - SELECTIVE MEDULLARY HYPOPERFUSION |
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| Author(s): AGMON Y, BREZIS M |
| Source: EXPERIMENTAL NEPHROLOGY Volume: 1 Issue: 6 Pages: 357-363 Published: NOV-DEC 1993 |
| Times Cited: 28 References: 0 |
| Abstract: Nonsteroidal anti-inflammatory drugs (NSAIDs) predispose to acute and chronic renal failure, possibly due to intrarenal hemodynamic effects. In anesthetized volume-expanded rats, total renal blood flow (RBF) was measured by an ultrasonic flowmeter placed around the left renal artery, superficial cortical blood flow (sCBF) by a flunt laser-Doppler probe placed over the kidney surface, mid-cortical (mCBF) and outer medullary blood flow (oMBF) by a needle laser-Doppler probe inserted into the renal parenchyma. Indomethacin (5 mg/kg i.v.) caused no significant change in RBF (n = 9) or mCBF (n = 6) and slightly increased sCBF (to 106 +/- 2% of baseline; n = 8, p < 0.05). By contrast, oMBF dropped significantly (to 55 +/- 4% of baseline; n = 8, p < 0.0001) within 30 min of indomethacin administration. Similarly, acetylsalicylate (50 mg/kg i.v.) slightly increased sCBF (to 110 +/- 3% of baseline; n = 5, p < 0.05) but caused a significant drop in oMBF (to 54 +/- 2 % of baseline; n = 5, p < 0.0001). These results suggest that NSAIDs cause a profound and selective reduction in oMBF which may predispose to acute or chronic intrarenal damage by aggravating medullary hypoxia. |
| Document Type: Article |
| Language: English |
Addresses:
1. HADASSAH UNIV HOSP, DEPT MED, RENAL LAB, POB 24035, MT SCOPUS, IL-91240 JERUSALEM, ISRAEL |
| Publisher: KARGER, ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND |
| Subject Category: Urology & Nephrology |
| IDS Number: MJ503 |
| ISSN: 1018-7782 |
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