Prenatal development of respiratory chemoreceptors in endothermic vertebrates.
Prenatal development of respiratory chemoreceptors in endothermic vertebrates.
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DOI:
10.1016/j.resp.2011.04.027
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发表时间:
2011-08-31
影响因子:
2.3
通讯作者:
Pilarski, Jason Q.
中科院分区:
文献类型:
--
作者:
Hempleman, Steven C.;Pilarski, Jason Q.
Respiratory chemoreceptors are neurons that detect PCO2, PO2, and/or pH in body fluids and provide sensory feedback for the control of breathing. They play a critical role in coupling pulmonary ventilation to metabolic demand in endothermic vertebrates. During birth in mammals and hatching in birds, the state change from placental or chorioallantoic gas exchange to pulmonary respiration makes acute demands on the neonatal lungs and ventilatory control system, including the respiratory chemoreceptors. Here we review the literature on prenatal development of carotid body chemoreceptors, central chemoreceptors, and airway chemoreceptors, with emphasis on the histology, histochemistry, and neurophysiology of chemosensory cells or their afferents, and their physiological genomics if known. In general, respiratory chemoreceptors develop prenatally and are functional but immature at birth or hatching. Each type of respiratory chemoreceptor has a unique prenatal developmental timecourse, and all studied to date require a period of postnatal maturation to express the full adult response.
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