Hormonal regulation of the fish gastrointestinal tract

Randal Buddington, Åshild Krogdahl

Research output: Contribution to journalReview article

33 Citations (Scopus)

Abstract

The gastrointestinal tracts (GIT) of fish and other vertebrates are challenged with a diversity of functional demands caused by changes and differences in dietary inputs and environmental conditions. This contribution reviews how hormonal regulation plays an essential role in modulating the GIT functions of fish to match changes in functional demands. Exemplary is how hormones produced by the GIT, the associated organs (e.g., pancreas), and other sources (e.g., hypothalamus, adrenal cortex, thyroid, gonads) modulate the digestive processes (motility, secretion, and nutrient absorption) in response to dietary inputs. Hormones regulate the other GIT functions of osmoregulation (secretion and absorption of electrolytes and water), immunity, endocrine secretions, metabolism, and the elimination of toxic metabolites and environmental contaminants to match changes in environmental conditions and physiological states. Although the regulatory molecules and associated signaling pathways have been conserved during evolution of the vertebrate GIT, the specific responses often vary among fish with different feeding habits and from different environments, and can differ from those described for mammals.

Original languageEnglish (US)
Pages (from-to)261-271
Number of pages11
JournalComparative Biochemistry and Physiology - A Molecular and Integrative Physiology
Volume139
Issue number3
DOIs
StatePublished - Nov 1 2004
Externally publishedYes

Fingerprint

Fish
Gastrointestinal Tract
Fishes
Gastrointestinal Hormones
Mammals
Poisons
Vertebrates
Metabolites
Metabolism
Electrolytes
Nutrients
Hormones
Osmoregulation
Impurities
Secretory Pathway
Adrenal Cortex
Gonads
Molecules
Water
Hypothalamus

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Physiology

Cite this

Hormonal regulation of the fish gastrointestinal tract. / Buddington, Randal; Krogdahl, Åshild.

In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology, Vol. 139, No. 3, 01.11.2004, p. 261-271.

Research output: Contribution to journalReview article

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