NAC and Vitamin D Improve CNS and Plasma Oxidative Stress in Neonatal HIE and Are Associated with Favorable Long-Term Outcomes.

NAC and Vitamin D Improve CNS and Plasma Oxidative Stress in Neonatal HIE and Are Associated with Favorable Long-Term Outcomes.
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NAC和维生素D改善了新生儿HIE中的CNS和血浆氧化应激,并与有利的长期结局有关。

DOI:
10.3390/antiox10091344
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发表时间:
2021-08-25
期刊:
Antioxidants (Basel, Switzerland)
影响因子:
--
通讯作者:
Wiest DB
Wiest DB
中科院分区:
其他
文献类型:
--
作者:
Jenkins DD;Moss HG;Brown TR;Yazdani M;Thayyil S;Montaldo P;Vento M;Kuligowski J;Wagner C;Hollis BW;Wiest DB

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N-乙酰半胱氨酸(NAC)和维生素D在严重或炎症致敏的缺氧缺血性脑病(HIE)动物模型中提供有效的神经保护。为了将这些FDA批准的药物应用于HIE新生儿,我们进行了一项为期10天的NAC(25,40 mg/kg q12 h)+1,25(OH)2D(骨化三醇0.05 mg/kg q12 h,0.03 mg/kg q24 h)(NVD)的早期开放标签试验,以评估治疗性低温和正常体温期间的药代动力学(PK)。我们在NVD输注前和输注后5天通过基底神经节(BG)中的系列MRS将PK样本与血浆异前列腺素、CNS谷胱甘肽(GSH)和总肌酸(tCr)的药效学(PD)目标配对。婴儿有中度(n = 14)或重度HIE(n = 16),脐带炎(32%)和维生素D缺乏症(75%)。NVD导致CNS GSH和tCr快速、剂量反应性增加,与血浆[NAC]呈正相关,与血浆异呋喃呈负相关,并且在基线[GSH]和[tCr]较低的婴儿中更大,表明这些PD标志物的增加通过神经需求滴定。低温和正常体温改变了NAC PK估计值。NVD耐受性良好。排除遗传综合征(2例)、延长ECMO(2例)、失访(1例)和SIDS死亡(1例),24例NVD治疗的HIE婴儿在24-48个月时没有脑瘫、自闭症或认知延迟的证据。这些数据证实,低,安全剂量的NVD在HIE新生儿降低血浆和中枢神经系统的氧化应激,改善中枢神经系统的能量,并与良好的发展结果在2至4年。
N-acetylcysteine (NAC) and vitamin D provide effective neuroprotection in animal models of severe or inflammation-sensitized hypoxic ischemic encephalopathy (HIE). To translate these FDA-approved drugs to HIE neonates, we conducted an early phase, open-label trial of 10 days of NAC (25, 40 mg/kg q12h) + 1,25(OH)2D (calcitriol 0.05 mg/kg q12h, 0.03 mg/kg q24h), (NVD), for pharmacokinetic (PK) estimates during therapeutic hypothermia and normothermia. We paired PK samples with pharmacodynamic (PD) targets of plasma isoprostanoids, CNS glutathione (GSH) and total creatine (tCr) by serial MRS in basal ganglia (BG) before and after NVD infusion at five days. Infants had moderate (n = 14) or severe HIE (n = 16), funisitis (32%), and vitamin D deficiency (75%). NVD resulted in rapid, dose-responsive increases in CNS GSH and tCr that correlated positively with plasma [NAC], inversely with plasma isofurans, and was greater in infants with lower baseline [GSH] and [tCr], suggesting increases in these PD markers were titrated by neural demand. Hypothermia and normothermia altered NAC PK estimates. NVD was well tolerated. Excluding genetic syndromes (2), prolonged ECMO (2), lost-to-follow-up (1) and SIDS death (1), 24 NVD treated HIE infants have no evidence of cerebral palsy, autism or cognitive delay at 24–48 months. These data confirm that low, safe doses of NVD in HIE neonates decreased oxidative stress in plasma and CNS, improved CNS energetics, and are associated with favorable developmental outcomes at two to four years.
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