Dose of budesonide with surfactant affects lung and systemic inflammation after normal and injurious ventilation in preterm lambs.

Dose of budesonide with surfactant affects lung and systemic inflammation after normal and injurious ventilation in preterm lambs.
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DOI:
10.1038/s41390-020-0809-6
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发表时间:
2020-11
期刊:
影响因子:
3.6
通讯作者:
Jobe AH
Jobe AH
中科院分区:
医学3区
文献类型:
--
作者:
Hillman NH;Abugisisa L;Royse E;Fee E;Kemp MW;Kramer BW;Schmidt AF;Salomone F;Clarke MW;Musk GC;Jobe AH

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在表面活性剂中添加 0.25 mg/kg 布地奈德 (Bud) 可降低早产羊机械通气的肺部和全身反应,以及早产儿支气管肺发育不良 (BPD) 的发生率和严重程度。表面活性剂中较低的布地奈德浓度将减少损伤,同时减少全身皮质类固醇暴露。早产羔羊接受以下任一治疗:1) 从出生起就使用表面活性剂进行保护性潮气量 (VT) 通气,或 2) 15 分钟的伤害性 VT 通气,然后进行表面活性剂治疗。羔羊进一步分配至与以下物质混合的表面活性剂:i)盐水,ii)Bud 0.25 mg/kg,iii)Bud 0.1 mg/kg,或iv)Bud 0.04 mg/kg。然后所有羔羊均使用保护性 VT 通气 6 小时。血浆芽水平与接受的剂量成正比,并在通气过程中降低。在保护性和伤害性 VT 通气中,6 小时时只有不到 4% 的芽留在肺中。 Bud 0.25 mg/kg 的生理学和损伤标志物在 0.1 mg/kg 的情况下也有一些改善,而 0.04 mg/kg 的影响很小。较低剂量的 Bud 在减少机械通气引起的肺部和全身炎症方面效果较差。血浆芽水平与给予的剂量成正比,并且大部分离开肺部。
The addition of budesonide (Bud) 0.25 mg/kg to surfactant decreased the lung and systemic responses to mechanical ventilation in preterm sheep, and the rates and severity of bronchopulmonary dysplasia (BPD) in preterm infants. Lower budesonide concentrations in surfactant will decrease injury while decreasing systemic corticosteroid exposure. Preterm lambs received either: 1) protective tidal volume (VT) ventilation with surfactant from birth or 2) injurious VT ventilation for 15 minutes then surfactant treatment. Lambs were further assigned to surfactant mixed with: i) Saline, ii) Bud 0.25 mg/kg, iii) Bud 0.1 mg/kg, or iv) Bud 0.04 mg/kg. All lambs were then ventilated with protective VT for 6 hours. Plasma Bud levels were proportional to the dose received, and decreased throughout ventilation. In both protective and injurious VT ventilation, less than 4% of Bud remained in the lung at 6 h. Some of the improvements in physiology and markers of injury with Bud 0.25 mg/kg were also found with 0.1 mg/kg, whereas 0.04 mg/kg had only minimal effects. Lower doses of Bud were less effective at decreasing lung and systemic inflammation from mechanical ventilation. The plasma Bud levels were proportional to dose given and the majority left the lung.
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