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The anti-inflammatory effects of quinolinic acid in the rat.

机译:喹啉酸对大鼠的抗炎作用。

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摘要

Quinolinic acid (QUIN) levels are elevated in patients and animals suffering from chronic infectious diseases. In the present study, male Sprague-Dawley rats were used to test the anti-inflammatory effects of QUIN using the carrageenan (CGN)-induced paw edema assay and the CGN sponge assay. Results of these studies indicate that QUIN (30, 100 or 300 mg/kg i.p.) caused a reduction of carrageenan-induced inflammation by as much as 80% at the highest dose. Moreover, QUIN reduced exudate volume and inhibited leukocyte migration in the sponge granuloma assay. In another experiment, the anti-inflammatory activity of QUIN was eliminated in adrenalectomized rats. QUIN did not reduce edema caused by arachidonic acid, bradykinin or compound 48/80. Neither morphine nor naloxone altered the anti-inflammatory activity of QUIN. These results may suggest that QUIN exerts its anti-inflammatory activity through a direct action on neutrophils or vascular permeability.
机译:患有慢性传染病的患者和动物中的喹啉酸(QUIN)水平升高。在本研究中,雄性Sprague-Dawley大鼠用于通过角叉菜胶(CGN)诱导的爪水肿测定法和CGN海绵测定法测试QUIN的抗炎作用。这些研究结果表明,QUIN(30、100或300 mg / kg i.p.)在最高剂量下能使角叉菜胶诱导的炎症减少多达80%。此外,在海绵肉芽肿试验中,QUIN减少了渗出液体积并抑制了白细胞迁移。在另一个实验中,在肾上腺切除的大鼠中消除了QUIN的抗炎活性。 QUIN不能减轻花生四烯酸,缓激肽或化合物48/80引起的水肿。吗啡和纳洛酮均未改变QUIN的抗炎活性。这些结果可能表明QUIN通过对嗜中性粒细胞或血管通透性的直接作用发挥其抗炎活性。

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