Intestinal digestive enzyme modulation in house sparrow nestlings occurs within 24 h of a change in diet composition

The Journal of Experimental Biology
Katherine H RottW H Karasov

Abstract

Nestling house sparrows near fledging age (12 days) were previously found to reversibly modulate the activity of their intestinal digestive enzymes in response to changes in diet composition. However, it is not known how quickly nestlings can adjust to new diets with different substrate compositions, nor is it known how early in life nestlings can modulate their enzyme activity in response to changes in diet. In the present study, 3-day-old nestlings were captured from the wild and fed and switched among contrasting diets - one high in protein and low in carbohydrate and another higher in carbohydrate and with lower, but adequate, protein - in order to determine (1) how quickly house sparrow nestlings could adjust to changes in diet composition, (2) how early in life nestlings could modulate their digestive enzyme activity in response to these changes and (3) which digestive enzymes could be modulated in house sparrow nestlings earlier in life. We found that house sparrow nestlings as young as 3 days post-hatch were capable of modulating their intestinal disaccharidase activity within 24 h of a change in diet composition, and nestlings gained the ability to modulate aminopeptidase-N by 6 or 7 days of age. To our knowledge, this...Continue Reading

References

Aug 1, 1995·The American Journal of Physiology·D AfikW H Karasov
Apr 21, 1998·Physiological Zoology·P SabatC Martínez del Rio
Apr 26, 2000·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·E Caviedes-VidalW H Karasov
Mar 14, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·S R McWilliams, W H Karasov
Aug 23, 2001·Physiological and Biochemical Zoology : PBZ·E Caviedes-Vidal, W H Karasov
Apr 28, 2005·The Journal of Experimental Biology·Kenneth A Nagy
May 11, 2007·Proceedings. Biological Sciences·Sigrun SkjelsethBernt-Erik Saether
Aug 10, 2007·Proceedings. Biological Sciences·Steven L ChownHans Petter Leinaas
Apr 21, 2009·The Journal of Experimental Biology·Paweł BrzekWilliam H Karasov
Aug 14, 2009·Biological Reviews of the Cambridge Philosophical Society·Todd J McWhorterWilliam H Karasov
Feb 16, 2010·The Journal of Experimental Biology·Paweł BrzekWilliam H Karasov
Feb 15, 2011·Annual Review of Physiology·William H KarasovEnrique Caviedes-Vidal
Dec 28, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Paweł BrzękEnrique Caviedes-Vidal
Jul 23, 2013·The Journal of Experimental Biology·Paweł BrzekWilliam H Karasov
Aug 16, 2014·General and Comparative Endocrinology·Lynn B Martin, Andrea L Liebl
Jan 7, 2015·Physiology·Edwin R PriceWilliam H Karasov
Jul 1, 2015·Journal of Animal Physiology and Animal Nutrition·C Gatica-SosaE Caviedes-Vidal

❮ Previous
Next ❯

Citations

Feb 16, 2018·The Journal of Experimental Biology·Claudia Gatica-SosaEnrique Caviedes-Vidal
Jan 21, 2021·Proceedings. Biological Sciences·Michael GriegoAlexander R Gerson
Dec 5, 2020·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·William H Karasov, Enrique Caviedes-Vidal
Nov 12, 2020·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Antonio BrunEnrique Caviedes-Vidal
Jan 20, 2021·The Journal of Experimental Biology·Jessika LamarreDavid R Wilson

❮ 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.