Respiratory rhythm generation, hypoxia, and oxidative stress—implications for development

Publication date: Available online 29 July 2019Source: Respiratory Physiology & NeurobiologyAuthor(s): Alfredo J. Garcia, Jean Charles Viemari, Maggie A. KhuuAbstractEncountered in a number of clinical conditions, repeated hypoxia/reoxygenation challenges during the neonatal period can pose both a threat to immediate survival as well diminished quality of living later on in life. This review focuses on our current understanding of central respiratory rhythm generation and the role that hypoxia and reoxygenation play in influencing rhythmogenesis. Here, we examine the stereotypical response of the inspiratory rhythm from the preBötzinger complex (preBötC), basic neuronal mechanisms that support rhythm generation during the peri-hypoxic interval, and the physiological consequences of inspiratory network responsivity to hypoxia and reoxygenation, acute and chronic intermittent hypoxia, and oxidative stress. These topics are examined in the context of Sudden Infant Death Syndrome, apneas of prematurity, and neonatal abstinence syndrome.

Source: Respiratory Physiology and Neurobiology - July 30, 2019 Category: Respiratory Medicine Source Type: research