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Astragalus membranaceus reduces free radical mediated injury to renal tubules in rabbits receiving high energy shock waves

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Chinese Medical Journal 2005年第1期118卷 43-49页

作者： SHENGBin-wu CHENXing-fa ZHAOJun heda-lin NANXun-yi DepartmentofUrology FirstHospitalofXi＇anJiaotongUniversityXi＇anShaanxi710061China DepartmentofUrology FirstHospitalofXi＇anJiaotongUniversityXi＇anShaanxi710061China

Background Recent studies have revealed the important role of free radicals in renal damage induced by high energy shock waves (HESW) This study aimed at investigating the effects of Astragalus membranaceus , a traditional Chinese medicinal herb, on free radical mediated HESW induced damage to renal tubules in a live rabbit model Methods Forty five healthy male New Zealand white rabbits were randomly divided into three groups: control group ( n =15), sham group ( n =15), and herb treated group ( n =15) Three days prior to HESW application, the controls received verapamil (0 4 mg/kg), the shams received physiological saline (20 ml), and the herb treated animals received Astragalus membranaceus (2 4 g/kg) intravenously HESW (1500 shocks, 18kV) was applied to the right kidneys of all anesthetized rabbits We measured superoxide dismutase (SOD) and malondialdehyde (MDA) levels before and after shock treatment in blood and kidney homogenates Histopathological changes were also observed Results MDA levels increased and SOD activity decreased significantly in the sham group ( P 0 05) SOD values were significantly higher in the controls than in the shams ( P <0 05) By contrast, SOD levels recovered rapidly in the rabbits receiving Astragalus membranaceus , reaching a nadir within 24 hours, and returning to baseline more quickly than in control and sham rabbits ( P <0 05) Histopathological examinations showed that renal tubular damage in the controls was less severe than in the shams, while damage in the Astragalus membranaceus group was even more mild, with rapid recovery in comparison with the controls Conclusion This study provides preliminary evidence indicating that Astragalus membranaceus

关键词： astragalus membranaceus high-energy shock wave kidney injury

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低尘埃漂白硫酸盐桉木浆的生产

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中国造纸 2006年第4期25卷 34-37页

作者：周茂贤覃瑜萍高发明广西大学轻工与食品工程学院广西南宁530004 广西贺达纸业有限责任公司广西贺州542800

介绍了贺达纸业公司低尘埃全漂白硫酸盐桉木浆的制造工艺和主要生产设备,结合生产中积累的实践经验,对全漂白桉木浆的低尘埃控制技术进行了分析和探讨。

关键词：低尘埃漂白桉木生产工艺

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