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褐多孔菌水煎剂对脂质代谢的影响 总被引:1,自引:0,他引:1
东星月 《中国生化药物杂志》1999,20(1):45-45
实验观察了褐多孔菌水煎剂对高脂血症患者脂质代谢的影响。结果表明:用药4周后血清总胆固醇和甘油三酯明显下降,同时高密度脂蛋白胆固醇逐渐上升。说明该水煎剂具有调节血脂作用。 相似文献
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目的:探讨肠道菌定植饮(DZY)对小鼠和斑马鱼的肠道菌群的调节作用。方法:设置DZY 3个剂量组0.41、0.82、2.46 g·kg-1·BW,连续灌胃30 d,测定灌胃前后小鼠粪便中肠杆菌、肠球菌、产气荚膜梭菌、乳杆菌、双歧杆菌菌落数;使用CM-DiI红色荧光标记青春双歧杆菌,DiO绿色荧光标记短乳杆菌;同时饲喂受精后5天(5 dpf)野生型AB品系斑马鱼,建立斑马鱼肠道菌群模型。将模型斑马鱼培养至6 dpf,移除短乳杆菌和青春双歧杆菌,分别给予DZY(1000、2000、4000 μg·mL-1)、阳性对照常欣卫口服液(8.30 μg·mL-1),并设置模型对照组。24 h后,每个实验组随机取10尾斑马鱼置于荧光显微镜下拍照,分析肠道短乳杆菌、青春双歧杆菌的荧光强度。结果:DZY对小鼠肠道中的肠杆菌、肠球菌、乳杆菌数量无明显影响;但显著增加了双歧杆菌的数量,抑制了产气荚膜梭菌的生长。给予1000、2000、4000 μg·mL-1 DZY都能显著增加斑马鱼肠道中短乳杆菌、青春双歧杆菌的数量。结论:DZY能够在抑制条件致病菌的同时,增加有益菌的数量,具有调节肠道菌群的作用。 相似文献
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本实验用抗生素造成小鼠肠道菌群失调的模型,然后给小鼠灌喂厌氧-1号菌液(1亿活菌/ml)0.5ml,7d后查肠道菌群与自然恢复组比有显著差别,说明厌氧-1号活菌制剂对菌群失调小鼠肠道菌群具有调整作用. 相似文献
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目的研究褪黑素/低聚糖(脑白金)对老年人肠道菌群的影响。方法按“保健食品检验与评价技术规范”设计,44例〉60岁老年人随机分为2组,脑白金组服用脑白金(褪黑素/低聚糖),对照组服用安慰剂(淀粉/焦糖色素),均连服14d。结果服用14d后,脑白金组与安慰剂组比较,脑白金组服用前后自身进行比较,双歧杆菌及乳杆菌均增加,差异有统计学意义(P〈0.05,P〈0.01);而拟杆菌与肠杆菌减少,差异均有统计学意义(P〈0.05)。结论脑白金能促进老年人体内有益菌双歧杆菌及乳杆菌的增殖,抑制有害菌拟杆菌和条件致病菌肠杆菌的增殖。 相似文献
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医院内感染菌群变化趋势及耐药性分析 总被引:2,自引:0,他引:2
目的了解医院内感染病原菌群及其耐药性变化的趋势。方法对各病区5年中院内感染病原菌的分离及对抗生素的耐药情况进行统计分析。结果统计结果表明,列前10位的院内感染病原菌依次为:铜绿假单胞菌(21.5%)、酵母菌(16.2%)、大肠埃希菌(11.9%)、不动杆菌(9.9%)、肠球菌(8.9%)、肺炎克雷伯菌(8.6%)、阴沟肠杆菌(6.1%)、金黄色葡萄球菌(4.4%)、嗜麦芽窄食单胞菌(3.4%)、粘质沙雷菌(1.6%)。亚胺培南对铜绿假单胞菌的耐药率由15%升高至24%。哌拉西林/他唑巴坦、头孢哌酮/舒巴坦对G~-细菌的耐药率也呈逐年上升的趋势;耐万古霉素的肠球菌在逐年增加自,0~5%;结论 5年中,我院G~-、G~+细菌及酵母菌的分离率变化不大,细菌耐药性普遍提高。 相似文献
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Growth of 26 strains of sulfate-reducing bacteria isolated from the environment was inhibited by two cationic surfactants, namely, Hyamine 2389 and Lutensit K-LC at concentrations of 166 mg/1 or less. Hyamine 1622 (cationic) inhibited 21 strains at a concentration of 100 mg/1. Two strains were resistant to 100 mg/1 of Chloramine T, but 4 strains were resistant to 60 mg/1. Hydrogen peroxide at the concentration of 583 mg/1 was able to prevent the growth of 17 strains. Time-kill tests indicated that the majority of the strains were sensitive to all tested biocides during the first few minutes of exposure which extended to about one hour at lower concentrations. Lowering the temperature during exposure of bacteria did not exert any substantial effect on the biocidal efficiency of the tested chemicals. Higher concentrations of the biocides may require the lowering or raising of the pH and in the presence of organic matter. 相似文献
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We performed abdominal hysterectomy and administered aztreonam (AZT) for prophylaxis of postoperative infections, and investigated influences of the antibiotics on vaginal bacterial flora. The obtained results are summarized as follows. 1. Patients administered with AZT were studied (n = 48) for bacteria isolated from their vaginae preoperatively and at the 7th and the 14th days postoperatively. Groups of patients administered with cephalothin (CET), cefamandole (CMD) and latamoxef (LMOX) were also studied for comparison. 2. In the AZT group, the rate of isolation of aerobic Gram-positive bacteria was high (68.8-81.4%) whereas those of aerobic Gram-negative and anaerobic bacteria were low. 3. When changes in isolation frequencies of bacteria from the subjects preoperatively to postoperatively were compared, the following tendencies were observed: increase in the rate of aerobic Gram-positive bacteria was larger in the LMOX group than in the AZT group whereas decrease in the rate of aerobic Gram-negative bacteria was largest in the LMOX group followed by the AZT group then by the CMD group. Rates of decrease of anaerobic bacteria showed similar tendencies to the latter. Isolation rates of Candida sp. showed the largest increase in the LMOX group, followed by CET, CMD then AZT groups. 相似文献