A phylogenetic hypothesis for the origin of hiccough
Article first published online: 21 JAN 2003
Copyright © 2003 Wiley Periodicals Inc.
Volume 25, Issue 2, pages 182–188, February 2003
How to Cite
Straus, C., Vasilakos, K., Wilson, R. J. A., Oshima, T., Zelter, M., Derenne, J.-Ph., Similowski, T. and Whitelaw, W. A. (2003), A phylogenetic hypothesis for the origin of hiccough. Bioessays, 25: 182–188. doi: 10.1002/bies.10224
- Issue published online: 21 JAN 2003
- Article first published online: 21 JAN 2003
- The Association pour le Développement et l'Organisation de la Recherche en Pneumologie (ADOREP)
The occurrence of hiccoughs (hiccups) is very widespread and yet their neuronal origin and physiological significance are still unresolved. Several hypotheses have been proposed. Here we consider a phylogenetic perspective, starting from the concept that the ventilatory central pattern generator of lower vertebrates provides the base upon which central pattern generators of higher vertebrates develop. Hiccoughs are characterized by glottal closure during inspiration and by early development in relation to lung ventilation. They are inhibited when the concentration of inhaled CO2 is increased and they can be abolished by the drug baclofen (an agonist of the GABAB receptor). These properties are shared by ventilatory motor patterns of lower vertebrates, leading to the hypothesis that hiccough is the expression of archaic motor patterns and particularly the motor pattern of gill ventilation in bimodal breathers such as most frogs. A circuit that can generate hiccoughs may persist in mammals because it has permitted the development of pattern generators for other useful functions of the pharynx and chest wall muscles, such as suckling or eupneic breathing. BioEssays 25:182–188, 2003. © 2003 Wiley Periodicals, Inc.