目的:探讨健脾生血颗粒治疗小儿缺铁性贫血的疗效与安全性及其对相关指标的影响。方法:选取2011年1月至2012年12月来我院门诊治疗的小儿缺铁性贫血患儿92例,采用随机数表法分为观察组和对照组各46例。观察组给予健脾生血颗粒治疗,≤1岁...目的:探讨健脾生血颗粒治疗小儿缺铁性贫血的疗效与安全性及其对相关指标的影响。方法:选取2011年1月至2012年12月来我院门诊治疗的小儿缺铁性贫血患儿92例,采用随机数表法分为观察组和对照组各46例。观察组给予健脾生血颗粒治疗,≤1岁每次2.5 g,>1岁~3岁每次5 g,>3岁~5岁每次7.5 g,每日3次饭后温开水冲服;对照组给予右旋糖酐铁口服液治疗,体质量≤5 kg 5 mL/d,>5 kg^9 kg 10 mL/d,>9 kg 10~20 mL/d,每天分3次口服。1个月为1疗程,共治疗2个疗程。观察疗效、相关指标变化及不良反应情况,治疗后6个月随访复发情况。结果:治疗2个月,两组均取得较好疗效,痊愈率及总有效率比较差异均无统计学意义(P>0.05);RBC、Hb、Hct、MCV、MCH、MCHC均明显升高(P<0.01),且两组间比较差异无统计学意义(P>0.05);SF、SI、TIBC均明显改善(P<0.01),但观察组SF、SI水平高于对照组(P<0.05),TIBC水平低于对照组(P<0.01)。两组不良反应发生率差异无统计学意义(P>0.05),但观察组复发率(8.7%)低于对照组(23.9%)(P<0.05)。结论:健脾生血颗粒治疗小儿缺铁性贫血疗效满意,能明显改善红细胞、血清铁水平,体现了中西医结合治疗"标本兼治"的优势,且不良反应少,复发率低,值得临床推广应用。展开更多
AIM: To prepare a kind of magnetic iron-dextran nanopartides that was coated with anti-E.coli O157:H7 IgG, analyze its application conditions, and try to use it to isolate E.coli O157:H7 from foods. METHODS: Magnetic ...AIM: To prepare a kind of magnetic iron-dextran nanopartides that was coated with anti-E.coli O157:H7 IgG, analyze its application conditions, and try to use it to isolate E.coli O157:H7 from foods. METHODS: Magnetic iron-dextran nanopartides were prepared by the reaction of a mixture of ferric and ferrous ions with dextran polymers under alkaline conditions. The particles were coated with antiserum against E.coli O157: H7 by the periodate oxidation-borohydride reduction procedure. The oxidation time, amount of antibody coating the particles, amount of nanoparticles, incubation time and isolation time were varied to determine their effects on recovery of the organisms. Finally, the optimum conditions for isolating E.coli O157:H7 from food samples were established. RESULTS: E.coli O157:H7 can be isolated from samples within 15 min with the sensitivity of 101 CFU/mL or even less. In the presence of 108 CFU/mL of other organisms, the sensitivity is 101-102 CFU/mL. Nonspecific binding of other bacteria to the particles was not observed. Two and a half hours of enrichment is enough for the particles to detect the target from the food samples inoculated with 1 CFU/g. CONCLUSION: Isolation of target bacteria by immuno magnetic nanoparticles is an efficient method with high sensitivity and specificity. The technique is so simple that it can be operated in lab and field even by untrained personnel.展开更多
文摘目的:探讨健脾生血颗粒治疗小儿缺铁性贫血的疗效与安全性及其对相关指标的影响。方法:选取2011年1月至2012年12月来我院门诊治疗的小儿缺铁性贫血患儿92例,采用随机数表法分为观察组和对照组各46例。观察组给予健脾生血颗粒治疗,≤1岁每次2.5 g,>1岁~3岁每次5 g,>3岁~5岁每次7.5 g,每日3次饭后温开水冲服;对照组给予右旋糖酐铁口服液治疗,体质量≤5 kg 5 mL/d,>5 kg^9 kg 10 mL/d,>9 kg 10~20 mL/d,每天分3次口服。1个月为1疗程,共治疗2个疗程。观察疗效、相关指标变化及不良反应情况,治疗后6个月随访复发情况。结果:治疗2个月,两组均取得较好疗效,痊愈率及总有效率比较差异均无统计学意义(P>0.05);RBC、Hb、Hct、MCV、MCH、MCHC均明显升高(P<0.01),且两组间比较差异无统计学意义(P>0.05);SF、SI、TIBC均明显改善(P<0.01),但观察组SF、SI水平高于对照组(P<0.05),TIBC水平低于对照组(P<0.01)。两组不良反应发生率差异无统计学意义(P>0.05),但观察组复发率(8.7%)低于对照组(23.9%)(P<0.05)。结论:健脾生血颗粒治疗小儿缺铁性贫血疗效满意,能明显改善红细胞、血清铁水平,体现了中西医结合治疗"标本兼治"的优势,且不良反应少,复发率低,值得临床推广应用。
基金Supported by the National High-technology Research and Development Program of China (863 Program), No. 2003AA302260
文摘AIM: To prepare a kind of magnetic iron-dextran nanopartides that was coated with anti-E.coli O157:H7 IgG, analyze its application conditions, and try to use it to isolate E.coli O157:H7 from foods. METHODS: Magnetic iron-dextran nanopartides were prepared by the reaction of a mixture of ferric and ferrous ions with dextran polymers under alkaline conditions. The particles were coated with antiserum against E.coli O157: H7 by the periodate oxidation-borohydride reduction procedure. The oxidation time, amount of antibody coating the particles, amount of nanoparticles, incubation time and isolation time were varied to determine their effects on recovery of the organisms. Finally, the optimum conditions for isolating E.coli O157:H7 from food samples were established. RESULTS: E.coli O157:H7 can be isolated from samples within 15 min with the sensitivity of 101 CFU/mL or even less. In the presence of 108 CFU/mL of other organisms, the sensitivity is 101-102 CFU/mL. Nonspecific binding of other bacteria to the particles was not observed. Two and a half hours of enrichment is enough for the particles to detect the target from the food samples inoculated with 1 CFU/g. CONCLUSION: Isolation of target bacteria by immuno magnetic nanoparticles is an efficient method with high sensitivity and specificity. The technique is so simple that it can be operated in lab and field even by untrained personnel.
