Renal effects of prolonged synthesis inhibition of endothelium-derived nitric oxide.

Renal effects of prolonged synthesis inhibition of endothelium-derived nitric oxide.
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长期抑制内皮源性一氧化氮的合成对肾脏的影响。

DOI:
10.1161/01.hyp.20.1.113
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发表时间:
1992
期刊:
Hypertension (Dallas, Tex. : 1979)
影响因子:
--
通讯作者:
Quesada,T
Quesada,T
中科院分区:
--
文献类型:
--
作者:
Salazar,FJ;Pinilla,JM;López,F;Romero,JC;Quesada,T

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本研究的目的是在清醒的狗中调查一氧化氮合成抑制对肾小球滤过率、钠和水排泄以及肾素和醛固酮血浆水平的长期影响。经过 3 天的对照期后,连续 3 天输注内皮源性一氧化氮合成抑制剂 NG-硝基-L-精氨酸甲酯,剂量 (50 ng/kg/min) 不会引起动脉压发生显着变化 (n = 6)。一氧化氮合成的抑制导致肾小球滤过率大幅持续下降(p 小于 0.05)约 35%。这一变化伴随着抑制一氧化氮合成的第 1、2 和 3 天,尿钠排泄量从 78.9 +/- 4.6 meq/天分别减少到 49.8 +/- 6.8、60.1 +/- 4.2 和 53.5 +/- 9.0 meq/天。钠排泄分数的变化未能达到统计学显着性。一氧化氮合成抑制还导致尿流量显着且持续的下降。肾小球滤过率、尿钠排泄和利尿的降低伴随着血浆肾素活性增加 45%(p 小于 0.05),而血浆醛固酮浓度没有变化。到恢复期的第 3 天,肾小球滤过率、尿钠排泄、利尿和血浆肾素活性恢复到与对照期间相似的值。连续 3 天给予 L-精氨酸(5 微克/kg.min 静脉注射)不会改变任何测量参数,但有效预防了 3 天一氧化氮合成抑制引起的所有肾脏变化。(摘要截断为 250 字)
The aim of the present study was to investigate in conscious dogs the long-term effects of nitric oxide synthesis inhibition on glomerular filtration rate, sodium and water excretion, and plasma levels of renin and aldosterone. After a control period of 3 days, an inhibitor of endothelium-derived nitric oxide synthesis, NG-nitro-L-arginine-methyl ester, was infused for 3 consecutive days at a dose (50 ng/kg/min) that did not induce significant changes in arterial pressure (n = 6). The inhibition of nitric oxide synthesis led to a large and sustained decrease (p less than 0.05) in glomerular filtration rate of approximately 35%. This change was accompanied by a decrease (p less than 0.05) in urinary sodium excretion from 78.9 +/- 4.6 meq/day to 49.8 +/- 6.8, 60.1 +/- 4.2, and 53.5 +/- 9.0 meq/day by days 1, 2, and 3 of nitric oxide synthesis inhibition, respectively. Changes in fractional sodium excretion failed to achieve statistical significance. Nitric oxide synthesis inhibition also induced a significant and sustained decrease in urine flow rate. The decrease in glomerular filtration rate, natriuresis, and diuresis was accompanied by a 45% increase in plasma renin activity (p less than 0.05) and no change in plasma aldosterone concentration. By day 3 of the recovery period, glomerular filtration rate, natriuresis, diuresis, and plasma renin activity returned to values similar to those found during the control period. The administration of L-arginine during 3 consecutive days (5 micrograms/kg.min i.v.) did not modify any of the parameters measured but effectively prevented all the renal changes induced by the 3 days of nitric oxide synthesis inhibition.(ABSTRACT TRUNCATED AT 250 WORDS)
内皮源性舒张因子抑制肾素释放。
DOI: --
发表时间: 1988
影响因子: 5
作者:
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内皮源性舒张因子控制正常大鼠肾脏中的肾血流动力学。
DOI: 10.1681/asn.v16875
发表时间: 1990
期刊: Journal of the American Society of Nephrology : JASN
影响因子: --
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内皮源性舒张因子和一氧化氮对大鼠系膜细胞的影响。
DOI: --
发表时间: 1990
影响因子: --
作者:
Pamela J. Shultz;A. Schorer;Leopoldo Raij
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氨基酸输注对肾血流动力学的影响:内皮衍生舒张因子的作用
DOI: --
发表时间: 1991
期刊: HYPERTENSION
影响因子: 8.3
作者:
J. P. Tolins;L. Raij
通讯作者: L. Raij
L-精氨酸合成一氧化氮调节离体灌注和完整大鼠肾脏的肾血管阻力
DOI: --
发表时间: 1991
期刊:
影响因子: --
作者:
W. Welch;C. Wilcox;K. Aisaka;S. Gross;O. Griffith;B. Fontoura;T. Maack;R. Levi
通讯作者: R. Levi