The homeostatic dynamics of feeding behaviour identify novel mechanisms of anorectic agents.

Abstract:

:Better understanding of feeding behaviour will be vital in reducing obesity and metabolic syndrome, but we lack a standard model that captures the complexity of feeding behaviour. We construct an accurate stochastic model of rodent feeding at the bout level in order to perform quantitative behavioural analysis. Analysing the different effects on feeding behaviour of peptide YY3-36 (PYY3-36), lithium chloride, glucagon-like peptide 1 (GLP-1), and leptin shows the precise behavioural changes caused by each anorectic agent. Our analysis demonstrates that the changes in feeding behaviour evoked by the anorectic agents investigated do not mimic the behaviour of well-fed animals and that the intermeal interval is influenced by fullness. We show how robust homeostatic control of feeding thwarts attempts to reduce food intake and how this might be overcome. In silico experiments suggest that introducing a minimum intermeal interval or modulating upper gut emptying can be as effective as anorectic drug administration.

journal_name

PLoS Biol

journal_title

PLoS biology

authors

McGrath TM,Spreckley E,Rodriguez AF,Viscomi C,Alamshah A,Akalestou E,Murphy KG,Jones NS

doi

10.1371/journal.pbio.3000482

subject

Has Abstract

pub_date

2019-12-05 00:00:00

pages

e3000482

issue

12

eissn

1544-9173

issn

1545-7885

pii

PBIOLOGY-D-19-01121

journal_volume

17

pub_type

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