Distribution of liposomes in tuberculous mice

L.C. Orozco , M. Forero , M. Wasserman , J.J. Ahumada
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引用次数: 12

Abstract

The dynamics of the distribution of liposomes for use as drug carriers for the treatment of tuberculosis is studied. While the free radiolabel injected into mice was rapidly excreted by the kidneys, the same label trapped within liposomes was retained for longer periods in the liver, spleen and lung. There were variations in the distribution and retention times of liposomes of different composition.

When the distribution of liposomes in healthy and tuberculous mice was compared, a greater accumulation in the liver, spleen and lungs of healthy mice was observed, although the retention time in tuberculous mice was longer. These findings merit consideration in the design of therapies based on liposome-entrapped drugs as the dynamics of distribution and retention differ between normal and infected animals.

脂质体在结核小鼠体内的分布
研究了用于治疗结核病的药物载体脂质体的分布动力学。注射到小鼠体内的游离放射性标签迅速由肾脏排出,而脂质体中的放射性标签在肝脏、脾脏和肺中保留的时间较长。不同组成的脂质体在分布和滞留时间上存在差异。将脂质体在健康小鼠和结核小鼠中的分布进行比较,发现健康小鼠的肝、脾和肺中积聚较多,但结核小鼠的滞留时间较长。这些发现值得在设计基于脂质体包裹的药物的疗法时加以考虑,因为正常动物和感染动物之间的分布和保留动力学是不同的。
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