Intrapulmonary lipopolysaccharide exposure upregulates cytokine expression in the neonatal brainstem.
Intrapulmonary lipopolysaccharide exposure upregulates cytokine expression in the neonatal brainstem.
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DOI:
10.1111/j.1651-2227.2011.02564.x
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发表时间:
2012-05
期刊:
影响因子:
--
通讯作者:
Martin RJ
中科院分区:
文献类型:
--
作者:
Balan KV;Kc P;Mayer CA;Wilson CG;Belkadi A;Martin RJ
Perinatal inflammation and neonatal sepsis trigger lung and brain injury. We hypothesized that endotoxin exposure in the immature lung upregulates proinflammatory cytokine expression in the brainstem and impairs respiratory control. Lipopolysaccharide (LPS) or saline was administered intratracheally to vagal intact or denervated rat pups. LPS increased brainstem IL-1β and vagotomy blunted this response. There was an attenuated ventilatory response to hypoxia and increased brainstem IL-1β expression after LPS. Intratracheal endotoxin exposure in rat pups is associated with upregulation of IL-1β in the brainstem that is vagally mediated and associated with an impaired hypoxic ventilatory response.
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