Changes in the coordination between respiration and swallowing from suckling through weaning.

Title

Changes in the coordination between respiration and swallowing from suckling through weaning.

Creator

Bond Laura E; Mayerl Christopher J; Stricklen Bethany M; German Rebecca Z; Gould Francois D H

Publisher

Biology letters

Date

2020
2020-04

Description

All mammals undergo weaning from milk to solid food. This process requires substantial changes to mammalian oropharyngeal function. The coordination of swallowing and respiration is a crucial component of maintaining airway function throughout feeding and matures over infant development. However, how this coordination is affected by weaning is unknown. In this study, we ask how changes in posture, neural maturation and food properties associated with the weaning affect coordination of respiration and swallowing in a validated infant pig model. We recorded seven piglets feeding before and during the weaning age with liquid milk in a bottle and in a bowl, and solid feed in a bowl. Using videofluoroscopy synchronized with respiration, we found (i) the delay in the onset of inspiration after swallowing does not change with head position, (ii) the delay is different between solid food and bowl drinking at the same age and (iii) the delay increases over time when bottle feeding, suggesting a maturational effect. Significant changes in aerodigestive coordination occur prior to and post-weaning, resulting in distinctive patterns for liquid and solid food. The interplay of maturational timelines of oropharyngeal function at weaning may serve as a locus for behavioural and life-history plasticity.

Subject

aerodigestive; chin-tuck maneuver; deglutition; dysphagia; food transport; mammal; maturation; preterm; solid food; thickened infant formula; weaning

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Format

journalArticle

Search for Full-text

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Pages

20190942

Issue

4

Volume

16

ISSN

1744-957X 1744-9561

NEOMED College

NEOMED College of Medicine

NEOMED Department

Department of Anatomy & Neurobiology; NEOMED Postdoc Publications

Update Year & Number

June 2020 Update I

Citation

Bond Laura E; Mayerl Christopher J; Stricklen Bethany M; German Rebecca Z; Gould Francois D H, “Changes in the coordination between respiration and swallowing from suckling through weaning.,” NEOMED Bibliography Database, accessed January 25, 2021, https://neomed.omeka.net/items/show/11043.

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