摘要
目的：观察鱼腥草液膀胱冲洗对兔膀胱感染模型的抑菌作用，为防治尿路感染提供新的方法。方法选择雄性新西兰长耳大白兔20只，按随机数字表法分为庆大霉素对照组和3个不同浓度鱼腥草组，每组5只。采用导尿管向兔膀胱注入大肠埃希菌液1 mL（105 cfu/mL）夹闭导尿管1 h的方法复制兔膀胱感染模型；鱼腥草组分别向膀胱注入0.25、0.50、1.00 g/mL鱼腥草液50 mL，对照组向膀胱注入160 kU庆大霉素。于制模前及制模后3、5、7、9 d取兔耳血，检测各组血白细胞计数（WBC）、中性粒细胞比例（N%）；同时取中段晨尿检测菌尿阳性率和尿WBC阳性率；实验结束后处死动物取膀胱组织，光镜下观察病理学改变。结果制模前各组动物菌尿和尿WBC均为阴性，血常规WBC、N%均在正常范围。制模后3 d各组菌尿阳性率和尿WBC阳性率均达到100%；制模后随着治疗时间延长，各组菌尿阳性率和尿WBC阳性率逐渐下降，5 d时鱼腥草0.50 g/mL和1.00 g/mL组已出现统计学意义（菌尿阳性率为60%和40%，尿WBC阳性率为60%和40%，而庆大霉素对照组和鱼腥草0.25 g/mL阳性率仍为100%，均P＜0.01），制模9 d时两组均达到0水平，而0.25 g/mL组仍为20%的阳性率，说明鱼腥草0.50 g/mL和1.00 g/mL组抑菌作用较鱼腥草0.25 g/mL强。制模后各组WBC及N%均较制模前有所增加，3 d时已出现了统计学意义〔WBC（×109/L）：庆大霉素对照组为13.00±5.23比8.95±2.69，鱼腥草0.25 g/mL组为14.52±10.28比8.73±3.16，鱼腥草0.50 g/mL组为12.97±11.33比7.83±4.51，鱼腥草1.00 g/mL组为13.03±9.17比6.45±3.85；N%：庆大霉素对照组为（80.99±14.93比63.41±7.96，鱼腥草0.25 g/mL组为89.62±9.41比70.01±9.13，鱼腥草0.50 g/mL组为87.69±11.34比67.75±8.91，鱼腥草1.00 g/mL 组为85.67±12.81比65.12±4.63〕，7 d时有所下降，9 d时鱼腥草0.50 g/mL和1.00 g/mL组WBC和N%均恢复到正常范围〔WBC（×109/L）：鱼腥草0.50 g/mL组为8.56±5.38，鱼腥草1.00 g/mL组为7.93±4.82；N%：鱼腥草0.50 g/mL组为65.97±8.35，鱼腥草1.00 g/mL组为65.57±9.12〕。光镜下可见鱼腥草治疗组膀胱组织黏膜各层组织细胞形态正常，表明鱼腥草液对膀胱没有造成过敏等炎性反应。结论应用鱼腥草液进行膀胱冲洗治疗兔尿路感染，抑菌作用好于庆大霉素。
Objective To observe the bacteriostasis of herba houttuyniae liquid in bladder irrigation for treatment of rabbit bladder infection model, and to offer a new way for prevention and treatment of urinary tract infection.Methods Twenty male New Zealand long-eared white rabbits were divided into gentamicin control group and three different concentrations herba houttuyniae groups according to random number table method, each group 5 rabbits. The rabbit bladder infection model was replicated by injecting coli liquid 1 mL （105 cfu/mL） into the urinary bladder through a urethral catheter, and clipping the catheter for 1 hour. After model establishment for 3 days, in the three herba houttuyniae groups, 0.25, 0.50, 1.00 g/mL herba houttuyniae liquid 50 mL were injected into the bladder respectively, and in the gentamicin control group, 160 kU gentamicin was injected into the bladder. Before molding and after molding for 3, 5, 7, 9 days, ear blood in rabbit was taken, and white blood cell （WBC） count and neutrophil percentage （N%） were tested; at the same time, the middle segment morning urine was taken to detect bacteriuria and urine WBC positive rates; after the experiment, the animals were sacrificed, the urinary bladder tissues were taken, and the pathological changes in urinary bladder tissue were observed by a light microscope.Results Before molding, the bacteriuria in animals of each group was negative and the results of urine WBC, blood WBC and N% were within normal range. After molding for 3 days, bacteriuria and urine WBC positive rates reached 100%; with the prolongation of treatment after molding, the above two rates in each group were gradually decreased, and herba houttuyniae 0.50 g/mL and 1.00 g/mL groups appeared statistical significance on the 5th day （bacteriuria positive rate was 60% and 40%, urine WBC positive rate was 60% and 40% respectively, while the gentamicin control group and herba houttuyniae 0.25 g/mL group was still 100% positive, allP 〈 0.01）; on the 9th day, the bacteriuria positive rate in both higher dosage herba houttuyniae groups was 0, in 0.25 g/mL group, it still had the positive rate 20%, showing herba houttuyniae 0.50 g/mL and 1.00 g/mL had stronger inhibitory effect than herba houttuyniae 0.25 g/mL. WBC and N% were increased in each group after molding, and on the 3rd day, WBC and N were significantly higher in each group than those before molding [WBC （×109/L）： gentamicin control group 13.00±5.23 vs. 8.95±2.69, herba houttuyniae 0.25 g/mL group 14.52±10.28 vs. 8.73±3.16, herba houttuyniae 0.50 g/mL group 12.97±11.33 vs. 7.83±4.51, herba houttuyniae 1.00 g/mL group 13.03±9.17 vs. 6.45±3.85. N%： gentamicin control group 80.99±14.93 vs. 63.41±7.96, herba houttuyniae 0.25 g/mL group 89.62±9.41 vs. 70.01±9.13, herba houttuyniae 0.50 g/mL group 87.69±11.34 vs. 67.75±8.91, herba houttuyniae 1.00 g/mL group 85.67±12.81 vs. 65.12±4.63]. On the 7th day, WBC and N% fell, and on the 9th day, the WBC and N% were restored to normal range in herba houttuyniae 0.50 g/mL and 1.00 g/mL groups [WBC （×109/L）： herba houttuyniae 0.50 g/mL group 8.56±5.38, herba houttuyniae 1.00 g/mL group 7.93±4.82. N%： herba houttuyniae 0.50 g/mL group 65.97±8.35, herba houttuyniae 1.00 g/mL group 65.57±9.12]. Under light microscopy, it was shown that the morphological appearances of tissue cells in various layers of bladder mucosa were normal in herba houttuyniae group, demonstrating that herba houttuyniae fluid in bladder did not cause allergic inflammatory reaction, etc.Conclusion The bacteriostatic action of herba houttuyniae liquid for bladder irrigation in treatment of rabbits with urinary tract infection is better than that of gentamicin.
出处
《中国中西医结合急救杂志》
CAS
北大核心
2015年第6期611-614,共4页
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care
基金
天津市中西医结合科研基金项目（2011098）
关键词
鱼腥草
兔
膀胱冲洗
尿路感染
Herba houttuyniae
Rabbit
Bladder irrigation
Urinary tract infection
