Elevated Body Temperature Exaggerates Laryngeal Chemoreflex Apnea in Decerebrate Piglets
We investigated the interaction between body temperature and the duration of the laryngeal chemoreflex (LCR) in decerebrate piglets. Elevating body temperature by ∼ 2°C prolongs the duration of the LCR and the length of apnea associated with the reflex. This thermal prolongation seems to arise within the nucleus of the solitary tract in the brainstem, and we believe the thermal effect is mediated by enhanced GABAergic neurotransmission.
KeywordsSudden Infant Death Syndrome Solitary Tract Superior Laryngeal Nerve GABAergic Neurotransmission Elevated Body Temperature
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