ROLES OF HEMODYNAMIC AND TUBULAR FACTORS IN GENTAMICIN-MEDIATED NEPHROPATHY

被引:18
作者
HISHIDA, A [1 ]
NAKAJIMA, T [1 ]
YAMADA, M [1 ]
KATO, A [1 ]
HONDA, N [1 ]
机构
[1] HAMAMATSU UNIV SCH MED, DEPT MED 1, HAMAMATSU, SHIZUOKA, JAPAN
关键词
AMINOGLYCOSIDE; HYDROXYL RADICAL; RENAL BLOOD FLOW; RENIN-ANGIOTENSIN SYSTEMS; TUBULAR NECROSIS;
D O I
10.3109/08860229409044852
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Gentamicin (GM) often causes polyuric acute renal failure (ARF) in humans and animals. GM-mediated ARF in rats was accompanied with activated renin-angiotensin system, increased renal endothelin content, and enhanced lipid peroxidation. Suppression of the renin-angiotensin activity by desoxycorticosterone acetate and saline drinking, and treatment with superoxide dismutase attenuated the GM-induced decline in whole-kidney GFR with well-maintained RBF but did not reduce the severity of tubular necrosis. On the other hand, treatment with dimethylthiourea, a hydroxyl radical scavenger, attenuated the GM-mediated decline in GFR and lessened tubular necrosis but did not ameliorate the reduction in RBF. These data suggest contributions of both vascular and tubular factors to the GM-induced decline in GFR in rats. However, relative importance of these factors probably differs with different doses of the agent.
引用
收藏
页码:109 / 116
页数:8
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