首页> 外文学位 >Caffeine Combined with Sedative/Anesthetic Drugs Used in Neonatal Medicine and Apoptotic Neurotoxicity in Developing Mouse Brain.
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Caffeine Combined with Sedative/Anesthetic Drugs Used in Neonatal Medicine and Apoptotic Neurotoxicity in Developing Mouse Brain.

机译:咖啡因与用于新生儿医学的镇静/麻醉药合用,并在发育中的小鼠大脑中具有凋亡神经毒性。

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摘要

Each year, millions of premature babies are exposed to sedative/anesthetic drugs (SADs) in the neonatal intensive care unit (NICU). Acute exposure to SADs triggers widespread apoptosis in the developing brain of rodents and non-human primates. Furthermore, premature infants are administered caffeine (CAF) to treat respiratory dysfunction. Mounting evidence suggests that CAF may be neurotoxic and, when given in combination with SADs, potentiates SAD-induced cell death. However, the apoptotic interaction of CAF and SAD co-exposure is poorly understood. In a series of studies, I report that CAF combined with the NICU SADs midazolam, ketamine, or fentanyl is more neurotoxic to the postnatal day 3 (PND3) mouse brain than either CAF or SAD alone. Since many premature infants are given CAF + SADs chronically, I tested whether multiple exposures of CAF + SAD at PND3 + PND6 is more detrimental to the developing brain than a single exposure at PND6. My results indicate that the PND6 mouse brain is as vulnerable to multiple exposures of CAF + SAD on PND3 and PND6 as it is to a single exposure on PND6. Based on these results, neonatologists should exercise caution by limiting CAF + SADs co-exposure to durations necessary to ensure the survival of babies born prematurely.
机译:每年,成千上万的早产儿在新生儿重症监护病房(NICU)中都使用镇静/麻醉药(SAD)。急性暴露于SAD会在啮齿动物和非人类灵长类动物的发育中大脑中引发广泛的细胞凋亡。此外,早产儿要服用咖啡因(CAF)来治疗呼吸功能障碍。越来越多的证据表明,CAF可能具有神经毒性,当与SAD联合使用时,可增强SAD诱导的细胞死亡。但是,对CAF和SAD共同暴露的凋亡相互作用了解甚少。在一系列研究中,我报告说CAF与NICU SAD联合使用的咪达唑仑,氯胺酮或芬太尼对出生后第3天(PND3)小鼠的大脑比单独使用CAF或SAD更具神经毒性。由于许多早产儿会长期接受CAF + SAD,因此我测试了PND3 + PND6多次CAF + SAD暴露是否比PND6一次暴露更有害于发育中的大脑。我的结果表明,PND6小鼠的大脑容易受到PND3和PND6上CAF + SAD的多次暴露的影响,就像它受到PND6上的单次暴露一样。基于这些结果,新生儿科医生应谨慎行事,将CAF + SADs共同暴露时间限制在确保早产婴儿生存所必需的持续时间上。

著录项

  • 作者

    Cabrera, Omar Hosea.;

  • 作者单位

    University of Missouri - Saint Louis.;

  • 授予单位 University of Missouri - Saint Louis.;
  • 学科 Neurosciences.
  • 学位 Ph.D.
  • 年度 2016
  • 页码 69 p.
  • 总页数 69
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤学;
  • 关键词

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