Dry powdered aerosols of diatrizoic acid nanoparticle agglomerates as a lung contrast agent.

Dry powdered aerosols of diatrizoic acid nanoparticle agglomerates as a lung contrast agent.
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DOI:
10.1016/j.ijpharm.2010.03.009
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发表时间:
2010-05-31
影响因子:
5.8
通讯作者:
Berkland, Cory
Berkland, Cory
中科院分区:
医学2区
文献类型:
--
作者:
El-Gendy, Nashwa;Aillon, Kristin L.;Berkland, Cory

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雾化造影剂可以提高生物医学成像模式的分辨率,并能够更准确地诊断肺部疾病。许多碘化化合物,如泛影酸,已被证明是安全和有用的放射线检查的气道。必须改进此类化合物的制剂以允许最小气道的成像。这里,通过将纳米颗粒组装成可吸入微粒来产生泛影酸纳米颗粒团聚体,所述可吸入微粒可以增加肺外周中的沉积。纳米颗粒团聚体已得到充分表征,并在体内确定了安全性。对大鼠吹入干粉后,给药后2 h未观察到急性肺泡组织损伤。泛影酸纳米颗粒团聚体具有有效和安全的可吸入肺造影剂的特性。
Aerosolized contrast agents may improve the resolution of biomedical imaging modalities and enable more accurate diagnosis of lung diseases. Many iodinated compounds, such as diatrizoic acid, have been shown to be safe and useful for radiographic examination of the airways. Formulations of such compounds must be improved in order to allow imaging of the smallest airways. Here, diatrizoic acid nanoparticle agglomerates were created by assembling nanoparticles into inhalable microparticles that may augment deposition in the lung periphery. Nanoparticle agglomerates were fully characterized and safety was determined in vivo. After dry powder insufflation to rats, no acute alveolar tissue damage was observed 2 h post dose. Diatrizoic acid nanoparticle agglomerates possess the characteristics of an efficient and safe inhalable lung contrast agent.
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发表时间: 2007-01-01
期刊: AAPS PHARMSCITECH
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