The adrenal gland of newt Triturus carnifex (Amphibia, Urodela) following in vivo betamethasone administration

Anatomy and Embryology
Anna CapaldoLorenzo Varano

Abstract

The response of the adrenal gland of Triturus carnifex to betamethasone administration was studied; the effects were evaluated by examination of the ultrastructural morphological features of the tissues as well as the serum levels of aldosterone, corticosterone, norepinephrine and epinephrine. In March and June, betamethasone significantly decreased the serum levels of aldosterone and corticosterone and the lipid droplet content in the steroidogenic cells. Moreover, betamethasone influenced the chromaffin tissue, enhancing in March (when the chromaffin cells produce norepinephrine and epinephrine in almost equal quantities) epinephrine serum levels and the numeric ratio between norepinephrine and epinephrine granules in the chromaffin cells. In June, (when the chromaffin cells contain almost exclusively norepinephrine granules) betamethasone administration raised norepinephrine serum levels, whereas a decrease in the numeric ratio between norepinephrine and epinephrine granules in the chromaffin cells was found. Finally, betamethasone administration did not evoke in June any increase in the mean number of epinephrine granules in the chromaffin cells and/or in epinephrine serum levels, as would be expected if phenyletanolamine-N...Continue Reading

References

May 1, 1976·General and Comparative Endocrinology·W DupontR Vaillant
Nov 1, 1990·General and Comparative Endocrinology·W Kloas, W Hanke
Feb 1, 1986·General and Comparative Endocrinology·W ThurmondW Hanke
Jan 1, 1994·Experimental and Clinical Endocrinology·O P Gupta, W Hanke
Jun 1, 1997·General and Comparative Endocrinology·B GfellW Hanke
Jan 10, 1998·General and Comparative Endocrinology·W KloasW Hanke
Nov 25, 1998·Comparative Biochemistry and Physiology. Part C, Pharmacology, Toxicology & Endocrinology·S G ReidS F Perry
Feb 13, 2001·Journal of Neuroendocrinology·A Hodel
Dec 24, 2005·Anatomy and Embryology·Milica Manojlović StojanoskiMilka Sekulić
Apr 1, 1991·Journal of Morphology·V Laforgia, A Capaldo
Jan 1, 1992·Journal of Morphology·Vincenza LaForgia, Anna Capaldo
Sep 1, 1986·Journal of Morphology·Elena Grassi Milano, Fiorenza Accordi

❮ Previous
Next ❯

Citations

Jul 9, 2008·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Flaminia GayAnna Capaldo
Aug 30, 2008·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Enrico CrivellatoAntonio De Luca

❮ 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.