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11.
CHEN Xiao-yin ZHANG Qun YANG Qin-he XIE Qiu-ling SHEN Qiang XU Yun-sheng 《园艺学报》2002,18(12):1529-1531
AIM: To examine the effect of traditional chinese medicine recipe, Taoren Honghua(semen persicae-flos carthami) decoction, on hyperlipidemia without symptom. METHODS: The plasma TC, TG, LDL, HDL, apolipoprotein(Apo) A, Apo Bof the patients with hyperlipidemia without symptom were measured using automatic analyzer (shimadiu CL-7200), the production of nitric oxide(NO) was detected by Greiss reaction, and SODactivity and MDAformation were examined using o-trihydroxy benzene and barbituric methotheds, respectively. RESULTS: After oral administration of Taoren Honghua decoction, the plasma levels of TC, TG, LDL, and MDAof the patients were markedly decreased, however, the plasma levels of ApoA, HDL, SODand NOwere significantly increased and almost no change was detected in the plasma level of Apo B. In control group, it was found that although the plasma level of TC, TG and LDL were decreased ( P<0.05 ) and ApoAas well as HDLwere increased, ApoB, SOD, MDA and NO production were all unchanged. CONCLUSION: The traditional chinese medicine recipe, Taoren Honghua decoction,has a significant therapeutic effect on patients with hyperlipidemia by removing blood stasis, promoting qi circulation and in turn reducing blood lipid level. 相似文献
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三尖杉枝叶粉末防治花生根结线虫病 总被引:6,自引:0,他引:6
采用盆栽及大田小区试验,研究了三尖杉Cephalotaxus fortunei枝叶干粉末对花生根结线虫病的防治效果.盆栽试验结果表明,每盆(2kg土)施用三尖杉枝叶干粉末10、15及20 g三种处理,与对照组相比,初侵染相应推迟4、6、10天,并能减少侵染量,降低根结增长率,显著减轻花生根结线虫病病情.大田小区试验结果与盆栽试验结果相似,每小区(5m2)沟施三尖杉枝叶干粉末120、80、50 g,处理后34及53天的2次平均防治效果分别为89%、82%及50%,施药对照10%益舒宝颗粒剂25g处理(相当于45kg/hm2)为74%.综合使用剂量及花生生长情况,建议沟施150kg/hm2三尖杉枝叶干粉为宜. 相似文献
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AIM: To investigate the role of potassium channels in the regulation of intracellular free calcium concentration ( [Ca2+]i) of pulmonary artery smooth muscle cells (PASMCs) in rats. METHODS: The fluorescence Ca2+ indicator Fura-2/AM was used to observe [Ca2+]i of rat PASMCs in normal and chronic hypoxic condition. The influences of potassium channels on PASMCs proliferation were assessed by MTT assay. RESULTS: 1. In normoxic condition, [Ca2+]i was (156.91±8.60) nmol/L, and in hypoxic condition, [Ca2+]i was (294.01±16.81) nmol/L. 2. In normoxic condition, the voltage-dependent K+-channel antagonist 4-aminopyridine (4AP), but not the Ca2+-activated K+-channel antagonist tetraethylammonium (TEA) and the ATP-sensitive K+-channel antagonist glibenclamide (Glib) increased [Ca2+]i. 3. In hypoxic condition, 4AP and TEA caused the rise in [Ca2+]i , but Glib had no effect on [Ca2+]i. 4. MTT assay showed that 4AP increased the value of absorbing light degree (A value) in normoxic and hypoxic condition (0.582±0.062,0.873±0.043,respectively, P<0.01), TEA increased A value only in hypoxic condition, and Glib had no effect on the proliferation of PASMCs. CONCLUSIONS: KV plays an important role in the regulation of [Ca2+]i and proliferation of PASMCs. KCa serves as distinct responsive roles in the regulation of proliferation of PASMCs in hypoxic condition. KATP has no effect on [Ca2+]i and proliferation of PASMCs in normoxic and hypoxic conditions. 相似文献
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AIM: To investigate the effect of sodium nitroprusside (SNP) on activation of nuclear factor κB. METHODS: The techniques of culture of human T lymphocytes, Western blot and RT-PCR were applied. The effects of NO donor sodium nitroprusside (SNP) at different concentrations on mRNA and protein expression of IκBα in human T lymphocytes at 30 min or 120 min after stimulating with phytohaemagglutinin (PHA-P) were observed. RESULTS: SNP at middle or high concentrations reduced the degradation of κIBαprotein 30 min after stimulating with PHA-P,and increased the re-expression of κIBαmRNA 120 min after stimulating with PHA-P significantly.CONCLUSION: The mechanism of inhibitory effect of SNP at middle or high concentrations may be due to the decrease in degradation and the increase in re-synthesis of κIBα.The regulatory mechanism of SNP at low concentration may not be through κIBα. 相似文献
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果寡糖对猪粪便细菌群作用下L-色氨酸代谢的影响 总被引:3,自引:0,他引:3
本试验研究了果寡糖对猪粪便细菌群作用下L -色氨酸代谢的影响。将 10 % (W/V)粪水厌氧分装于无菌瓶中 ,分成 4组 :1组 (对照 )添加 2 5 0 μmol/LL -色氨酸 ;2~ 4组 :分别在对照组的基础上添加 0 .5 % ,1.0 %和 1.5 %果寡糖。 38℃、厌氧培养。在培养期的不同时间点 (0 ,2 ,4 ,6 ,8,12 ,18,2 4h)分别从各瓶中取 1mL培养液 ,分析各培养液中吲哚类物质含量。培养 2 4h后 ,分析各培养液中细菌学指标和pH。结果表明 :含L -色氨酸的体外培养液中添加 0 .5 % ,1.0 %和 1.5 %果寡糖 ,培养 2 4h后 ,使粪臭素浓度、吲哚 - 3-乙酸峰值和pH值均显著降低。添加1.0 %和 1.5 %果寡糖显著降低色氨酸降解率和粪臭素相对产率 ,显著提高吲哚相对产率 ,显著降低梭菌和大肠杆菌数 ,显著增加双歧杆菌和总厌氧菌数。 相似文献
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目的分析量纲分析法的基本原理、量纲和谐原理和Ⅱ定理及其分析法的一般步骤,探讨求解雨滴降落的终极速度的新方法.方法选用半定量的量纲分析法求解三种雨滴降落模型的终极速度.结果将用量纲分析法求得的雨滴降落终极速度与应用牛顿运动定律分析雨滴降落的终极速度结果相比较,结果相一致.结论量纲分析法求解雨滴降落终极速度显示了很大的便捷性,其忽略了复杂的过程分析,仅仅考虑可能影响物理结论的相关物理量,并直接找出物理量之间的内在关系,为物理教学和科研工作提供了一种新的思路. 相似文献