Impact of age on cardiovascular function, inflammation, and oxidative stress in experimental asphyxial cardiac arrest

Acta Anaesthesiologica Scandinavica
N SecherA Granfeldt

Abstract

Advanced age is an independent predictor of poor outcome after cardiac arrest (CA). From experimental studies of regional ischemia-reperfusion injury, advanced age is associated with larger infarct size, reduced organ function, and augmented oxidative stress. The objective of this study was to investigate the effect of age on cardiovascular function, oxidative stress, inflammation, and endothelial activation after CA representing global ischemia-reperfusion. Aged (26 months) and young (5 months) rats were subjected to 8 min of asphyxia induced CA, resuscitated and observed for 360 min. Left ventricular pressure-derived cardiac function was measured at baseline and 360 min after CA. Blood samples obtained at baseline, 120 min, and 360 min after CA were analyzed for IL-1β, IL-6, IL-10, TNF-α, elastase, sE-selectin, sL-selectin, sI-CAM1, hemeoxygenase-1 (HO-1) and protein carbonyl. Tissue samples of brain, heart, kidney, and lung were analyzed for HO-1. Cardiac function, evaluated by dP/dtmax and dP/dtmin , was decreased after CA in both young and aged rats, with no group differences. Mean arterial pressure increased after CA in young, but not old rats. Aged rats showed significantly higher plasma levels of elastase and sE-selecti...Continue Reading

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Citations

Aug 31, 2018·Disease Markers·Yoshimi KishimotoYukihiko Momiyama
Jul 28, 2019·International Journal of Molecular Sciences·Yoshimi KishimotoYukihiko Momiyama

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