PMID: 3770440Jun 1, 1986Paper

Osmoregulatory effects of prolactin and growth hormone in embryonic chicks

General and Comparative Endocrinology
M J MurphyS C Brown

Abstract

Intact White Leghorn chick embryos were treated daily (on Days 6-13) with bovine prolactin (PRL) or ovine growth hormone (GH) at doses of 4-10 micrograms/g embryo wet wt. A control group received an equal volume of avian saline. [Na+] and [Cl-] were determined in allantoic fluid samples taken on Days 10, 12, and 14, and in amniotic fluid and blood plasma on Day 14. Allantoic fluid, amniotic fluid, and plasma osmolarities, embryo wet weight, hematocrit, and allantoic fluid volume were also determined on Day 14. PRL-treated embryos showed significantly lower allantoic [Na+] and [Cl-] compared to controls at Days 10, 12, and 14. Allantoic fluid osmolarity was reduced, and plasma osmolarity increased, at Day 14 in PRL-treated embryos. By contrast, PRL had no effect on allantoic volume, amniotic fluid [Na+], [Cl-], or osmolarity, plasma [Na+] or [Cl-], hematocrit, or embryo wet weight. GH-treated embryos showed significantly reduced allantoic [Na+] at both Days 10 and 14, but no other treatment effect. Calculations show that the decrease in total allantoic Na+ seen in PRL-treated embryos is equivalent in magnitude to 10% of the total egg Na+. Results from studies on embryonic amphibians and mammals suggest that this sodium is likely...Continue Reading

References

Mar 1, 1979·General and Comparative Endocrinology·L J Eddy
Nov 1, 1979·General and Comparative Endocrinology·S HarveyA Chadwick
Mar 1, 1973·The Journal of Experimental Zoology·J J FaberK L Thornburg
Oct 1, 1967·Proceedings of the Society for Experimental Biology and Medicine·D B BartosikD J Watson
Oct 1, 1982·Neuroendocrinology·C A Loretz, H A Bern
May 1, 1982·The Journal of Experimental Zoology·M J MurphyP S Brown

❮ Previous
Next ❯

Citations

Feb 1, 1993·The Journal of Experimental Zoology·N B ClarkM J Murphy
Jan 1, 1990·European Journal of Applied Physiology and Occupational Physiology·V L KatzR C Cefalo
Nov 25, 1998·Comparative Biochemistry and Physiology. Part C, Pharmacology, Toxicology & Endocrinology·S HarveyK L Hull
Sep 6, 2013·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Travis Alvine, Warren W Burggren
Oct 9, 2001·General and Comparative Endocrinology·A SchmidekA Epple
Feb 17, 2015·General and Comparative Endocrinology·Guixian BuYajun Wang
Feb 1, 1988·The Journal of Experimental Zoology·T A DavisR A Ackerman

❮ 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.

Related Papers

The Journal of Experimental Zoology. Supplement : Published Under Auspices of the American Society of Zoologists and the Division of Comparative Physiology and Biochemistry
F de PabloM A Lesniak
Comparative Biochemistry and Physiology. Comparative Physiology
T OhkuboK Sato
© 2021 Meta ULC. All rights reserved