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Effects of hypercapnia on the lung
#MMPMID28044311
Shigemura M
; Lecuona E
; Sznajder JI
J Physiol
2017[Apr]; 595
(8
): 2431-2437
PMID28044311
show ga
Gases are sensed by lung cells and can activate specific intracellular signalling
pathways, and thus have physiological and pathophysiological effects. Carbon
dioxide (CO(2) ), a primary product of oxidative metabolism, can be sensed by
eukaryotic cells eliciting specific responses via recently identified signalling
pathways. However, the physiological and pathophysiological effects of high CO(2)
(hypercapnia) on the lungs and specific lung cells, which are the primary site of
CO(2) elimination, are incompletely understood. In this review, we provide a
physiological and mechanistic perspective on the effects of hypercapnia on the
lungs and discuss the recent understanding of CO(2) modulation of the alveolar
epithelial function (lung oedema clearance), epithelial cell repair, innate
immunity and airway function.