The intestinal response to feeding in seawater gulf toadfish, Opsanus beta, includes elevated base secretion and increased epithelial oxygen consumption

The Journal of Experimental Biology
Josi R Taylor, Martin Grosell

Abstract

Intestinal HCO3- secretion is essential to marine teleost fish osmoregulation and comprises a considerable source of base efflux attributable to both serosal HCO3- and endogenous CO2 hydration. The role of intestinal HCO3- secretion in dynamic acid-base balance regulation appears negligible in studies of unfed fish, but evidence of high intestinal fluid [HCO3-] in fed marine teleosts led us to investigate the source of this HCO3- and its potential role in offsetting the postprandial 'alkaline tide' commonly associated with digestion. Specifically, we hypothesized that elevated metabolic rate and thus endogenous CO2 production by intestinal tissue as well as increased transepithelial intestinal HCO3- secretion occur post-feeding and offset a postprandial alkaline tide. To test these hypotheses changes in HCO3- secretion and O2 consumption by gulf toadfish (Opsanus beta) isolated intestine were quantified 0, 3, 6, 12, 24 and 48 h post-feeding. Intestinal tissue of unfed fish in general showed high rates of HCO3- secretion (15.5 mumol g(-1) h(-1)) and O2 consumption (8.9 mumol g(-1) h(-1)). Furthermore, postprandial increases in both intestinal HCO3- secretion and O2 consumption (1.6- and 1.9-fold peak increases, respectively) wer...Continue Reading

References

Jan 1, 1965·Scandinavian Journal of Clinical and Laboratory Investigation·S J Rune
May 1, 1981·The American Journal of Physiology·L J Mandel, R S Balaban
Mar 1, 1995·The Proceedings of the Nutrition Society·P H DuéeM T Morel
Jan 1, 1995·Physiological Reviews·S J Hersey, G Sachs
Jul 1, 1993·Journal of Dairy Science·R Britton, C Krehbiel
Jun 25, 2002·Journal of Clinical Gastroenterology·Yaron Niv, Gerald M Fraser
Nov 8, 2002·Biochimica Et Biophysica Acta·Rod W WilsonMartin Grosell
Jun 20, 2003·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·M Danielle McDonaldPatrick J Walsh
Mar 11, 2004·The Journal of Experimental Biology·Denis V AndradeTobias Wang
Jul 8, 2005·The Journal of Experimental Biology·Chris M WoodPatrick J Walsh
Jul 9, 2005·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Jean-Hervé LignotStephen M Secor
May 24, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·M D McCue
Jul 22, 2006·The Journal of Experimental Biology·Martin Grosell
Jul 22, 2006·The Journal of Experimental Biology·Josi R Taylor, Martin Grosell
Mar 25, 1919·The Journal of Physiology·A Krogh, I Leitch
Mar 29, 2007·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Josi R TaylorMartin Grosell
Jul 28, 2007·Respiratory Physiology & Neurobiology·Chris M WoodSunita Nadella
Jan 25, 2008·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Yukihiro KuritaShigehisa Hirose
Jun 10, 2008·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Yung-Che Tseng, Pung-Pung Hwang
Jul 4, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Stephen M Secor
Jul 16, 2008·The Journal of Experimental Biology·Carol Bucking, Chris M Wood
Jan 20, 2009·Science·R W WilsonM Grosell
Jun 30, 2009·The Journal of Experimental Biology·Carol BuckingChris M Wood

❮ Previous
Next ❯

Citations

Aug 28, 2014·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·C A CooperR W Wilson
Sep 30, 2016·Scientific Reports·Rachael M Heuer, Martin Grosell
Jan 29, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Carol BuckingChris M Wood
Jul 18, 2019·Proceedings. Biological Sciences·Chris M Wood, Junho Eom
Aug 29, 2014·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Rachael M Heuer, Martin Grosell
Jul 20, 2017·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Alyssa M WeinrauchGreg G Goss
May 26, 2018·The Journal of Experimental Biology·Jeroen BrijsMichael Axelsson
May 11, 2012·The Journal of Experimental Biology·Carol BuckingMartin Grosell

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.