objective to evaluate the cost-effectiveness of three therapeutic schemes, ampicillin-sulbactam injection ( a), cefoperazone injection ( b) and levofloxacin injection ( c) in treatment of the community acquired pneumonia infections.

the in vitro activity mic of levofloxacin against 823 clinical isolates were determined and compared with other antimicrobial agents.

体外药效学（PD）研究系测定左氧氟沙星对近期823株临床分离菌的药敏参数[最低抑菌浓度（MIC）]，并与其他相关抗菌药进行比较。

determination of levofloxacin lactate and related substances in levofloxacin lactate and sodium chloride injection by rp-hplc

RP-HPLC法测定乳酸左氧氟沙星氯化钠注射液中主药含量及有关物质

result: there were no obvious changes in the external appearance and ph value in 8 hours.

结果：在室温下8h内，乳酸左氧氟沙星与常用注射液配伍后，外观和pH值变化不显著；

objective: to study the stability of levofloxacin hydrochloride mixed with four kinds of injection ( raceanisodamine, dexamethasone, potassium chloride, vitamin c) in glucose injection solution.

目的：考察盐酸左氧氟沙星在葡萄糖输液中与4种注射液（消旋山莨菪碱、地塞米松、氯化钾、维生素C）的配伍稳定性。

study on the interaction of levofloxacin and mcm-41 by fluorescence spectrum

荧光光谱法研究左氧氟沙星与MCM-41的相互作用

meta-analysis on clinical efficacy of combination regimens with levofloxacin in retreatment of pulmonary tuberculosis

含左氧氟沙星方案治疗复治肺结核临床疗效的Meta分析

conclusion the species distribution, molecular electrical property and apparent distribution coefficient of levofloxacin all demonstrated much to be reliant on ph value.

结论左氧氟沙星的离子分布、分子荷电性质和表观分配系数均表现出强的pH值依赖性。

meta-analysis on microbiological outcomes of bacterial infections treated with moxifloxacin versus levofloxacin

莫西沙星与左氧氟沙星治疗细菌性感染的细菌学疗效比较的Meta分析

objective levofloxacins of various salts were studied for its effect and mechanism on hepatitis b in vitro.

目的研究不同盐的左氧氟沙星体外抗HBV的作用及其机理。

chinical study of levofloxacin in the treatment of respiratory tract bacterial infections with copd

左氧氟沙星治疗COPD合并肺部感染的疗效观察

pharmacokinetics and pharmacodynamics of levofloxacin in patients with respiratory tract infections using bayesian forecasting

Bayesian反馈法研究左氧氟沙星在呼吸系统感染患者中药动学及药效学

hplc determination of levofloxacin in levofloxacin ophthalmic gel bioequivalence of levofloxacin hydrochloride tablets in chinese healthy volunteers

HPLC法测定盐酸左氧氟沙星液状眼用凝胶中左氧氟沙星的含量

comparison of effect of levofloxacin triple and bismuth quadruple in hp eradication

左氧氟沙星三联与铋剂四联疗法根除HP疗效的比较

compatibility of levofloxacin injection combined with vitamin c

左氧氟沙星与维生素C注射液的配伍稳定性

objective to study the effects of cigarette smoke on macrophage metalloelastase ( mmp-12) mrna expression in the rats passively inhaled the smoke and the role of n-acetyl-cysteine ( nac) in the management of copd.

目的：探讨香烟烟雾对被动吸烟大鼠巨噬细胞弹性蛋白酶（MMP-12）表达的影响及N-乙酰半胱氨酸（NAC）在慢性阻塞性肺疾病中的治疗作用。

the aim of the experiment was to study the lipid peroxidation damage of arsenic and the antagonistic action of n-acetyl-cysteine and vite on the damage induced by arsenic in blood, liver and kidney of rats.

本试验探讨了砷对小鼠血液和肝、肾脂质过氧化损伤及抗氧化剂N-乙酰半胱氨酸（NAC）和VitE对砷致小鼠脂质过氧化损伤的拮抗作用。

moreover, addition of n-acetylcysteine or glycyrrhizic acid together with acetaminophen reduced the hepatotoxicity of acetaminophen, which illustrated the feasibility of gel entrapment culture of hepatocytes as a hepatotoxicity model to reflect the situation of a hepatoprotective drug in vivo.

此外，N-乙酰半胱氨酸（NAC）与甘草酸（GA）与醋氨酚一起加到培养基中能显著抑制醋氨酚导致的肝毒性，进一步说明凝胶包埋培养肝细胞可以反映保肝药物的临床作用。

methods: serum creatine kinase was determined by n-acetyl cysteine ( nac) assay in 22 patients with ruptured tubal pregnancies and 35 patients with unruptured tubal pregnancies. fallopian tube tissues were examined by histopathology.

方法：采用N-乙酰半胱氨酸（NAC）法，测定22例破裂型输卵管妊娠患者和35例未破裂型输卵管妊娠患者的血清CK水平，同时对输卵管妊娠组织标本进行病理分析。

in lps+ nac group, pregnant mice were injected with n-acetylcysteine ( nac) at 30 min before and at 3 h after lps ( 0.2 mg/ kg, ip);

LPS+NAC组在注射LPS（0.2mg/kg，ip）前30min和后3h给予N-乙酰半胱氨酸（NAC）；

n-acetylcysteine ( nac) is a main part of free thiol in vivo, a precursor of glutathione. and has some effects on scavenging free radicals and protecting cells.

N－乙酰半胱氨酸（NAC）是体内游离巯基的组成部分，既可补充体内谷胱甘肽，又具有清除自由基、保护细胞的作用。