The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies
In teleosts, cortisol is the primary glucocorticoid secreted by the steroidogenic cells of the interrenal gland and an increase in its plasma concentration is a frequent indicator of stress. Cortisol has been postulated as an endogenous mediator involved in the regulation of reproduction and aggress...
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todo:paper_00166480_v195_n_p88_Morandini2023-10-03T14:14:05Z The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies Morandini, L. Honji, R.M. Ramallo, M.R. Moreira, R.G. Pandolfi, M. Cichlids Cortisol Interrenal gland Social hierarchies Stress 11 oxotestosterone hydrocortisone 11-ketotestosterone hydrocortisone testosterone anatomical variation animal tissue article chromaffin cell Cichlasoma dimerus controlled study enzyme linked immunosorbent assay fish histology hydrocortisone blood level immunohistochemistry interrenal gland kidney cell male molecular dynamics morphometrics nonhuman phenotype priority journal social dominance social status steroidogenesis stress aggression analogs and derivatives anatomy and histology animal blood cichlid enzyme immunoassay growth, development and aging interrenal gland mental stress metabolism physiology territoriality Aggression Animals Cichlids Hierarchy, Social Hydrocortisone Immunoenzyme Techniques Interrenal Gland Male Stress, Psychological Territoriality Testosterone In teleosts, cortisol is the primary glucocorticoid secreted by the steroidogenic cells of the interrenal gland and an increase in its plasma concentration is a frequent indicator of stress. Cortisol has been postulated as an endogenous mediator involved in the regulation of reproduction and aggression related to social dynamics. The cichlid fish Cichlasoma dimerus, is a monogamous species that exhibits complex social hierarchies; males appear in one of two basic alternative phenotypes: non-territorial and territorial males. In this work, we postulated as a general hypothesis that the morphometry of the interrenal gland cells and the plasma levels of cortisol and 11-ketotestosterone (11-KT) are related to the social rank in adult males of C. dimerus. First, the location and distribution of the interrenal gland with respect to its context - the kidney - was studied. Plasma levels of cortisol and 11-KT in territorial and non-territorial males were established by ELISA. Finally, a morphometric analysis of steroidogenic and chromaffin cells of the interrenal gland was performed. Results showed that the interrenal gland was exclusively located in the posterior portion of the cephalic kidney. Non-territorial males presented a greater nuclear area of their steroidogenic cells. Additionally, plasma cortisol and 11-KT levels were lower and higher, respectively, in territorial males. Finally, plasma cortisol levels positively correlated with the nuclear area of interrenal steroidogenic cells. Thus, the interrenal gland, by means of one of its products, cortisol, may be fulfilling an important role in the establishment of social hierarchies and their stability. © 2013 Elsevier Inc. Fil:Ramallo, M.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pandolfi, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00166480_v195_n_p88_Morandini |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cichlids Cortisol Interrenal gland Social hierarchies Stress 11 oxotestosterone hydrocortisone 11-ketotestosterone hydrocortisone testosterone anatomical variation animal tissue article chromaffin cell Cichlasoma dimerus controlled study enzyme linked immunosorbent assay fish histology hydrocortisone blood level immunohistochemistry interrenal gland kidney cell male molecular dynamics morphometrics nonhuman phenotype priority journal social dominance social status steroidogenesis stress aggression analogs and derivatives anatomy and histology animal blood cichlid enzyme immunoassay growth, development and aging interrenal gland mental stress metabolism physiology territoriality Aggression Animals Cichlids Hierarchy, Social Hydrocortisone Immunoenzyme Techniques Interrenal Gland Male Stress, Psychological Territoriality Testosterone |
| spellingShingle |
Cichlids Cortisol Interrenal gland Social hierarchies Stress 11 oxotestosterone hydrocortisone 11-ketotestosterone hydrocortisone testosterone anatomical variation animal tissue article chromaffin cell Cichlasoma dimerus controlled study enzyme linked immunosorbent assay fish histology hydrocortisone blood level immunohistochemistry interrenal gland kidney cell male molecular dynamics morphometrics nonhuman phenotype priority journal social dominance social status steroidogenesis stress aggression analogs and derivatives anatomy and histology animal blood cichlid enzyme immunoassay growth, development and aging interrenal gland mental stress metabolism physiology territoriality Aggression Animals Cichlids Hierarchy, Social Hydrocortisone Immunoenzyme Techniques Interrenal Gland Male Stress, Psychological Territoriality Testosterone Morandini, L. Honji, R.M. Ramallo, M.R. Moreira, R.G. Pandolfi, M. The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies |
| topic_facet |
Cichlids Cortisol Interrenal gland Social hierarchies Stress 11 oxotestosterone hydrocortisone 11-ketotestosterone hydrocortisone testosterone anatomical variation animal tissue article chromaffin cell Cichlasoma dimerus controlled study enzyme linked immunosorbent assay fish histology hydrocortisone blood level immunohistochemistry interrenal gland kidney cell male molecular dynamics morphometrics nonhuman phenotype priority journal social dominance social status steroidogenesis stress aggression analogs and derivatives anatomy and histology animal blood cichlid enzyme immunoassay growth, development and aging interrenal gland mental stress metabolism physiology territoriality Aggression Animals Cichlids Hierarchy, Social Hydrocortisone Immunoenzyme Techniques Interrenal Gland Male Stress, Psychological Territoriality Testosterone |
| description |
In teleosts, cortisol is the primary glucocorticoid secreted by the steroidogenic cells of the interrenal gland and an increase in its plasma concentration is a frequent indicator of stress. Cortisol has been postulated as an endogenous mediator involved in the regulation of reproduction and aggression related to social dynamics. The cichlid fish Cichlasoma dimerus, is a monogamous species that exhibits complex social hierarchies; males appear in one of two basic alternative phenotypes: non-territorial and territorial males. In this work, we postulated as a general hypothesis that the morphometry of the interrenal gland cells and the plasma levels of cortisol and 11-ketotestosterone (11-KT) are related to the social rank in adult males of C. dimerus. First, the location and distribution of the interrenal gland with respect to its context - the kidney - was studied. Plasma levels of cortisol and 11-KT in territorial and non-territorial males were established by ELISA. Finally, a morphometric analysis of steroidogenic and chromaffin cells of the interrenal gland was performed. Results showed that the interrenal gland was exclusively located in the posterior portion of the cephalic kidney. Non-territorial males presented a greater nuclear area of their steroidogenic cells. Additionally, plasma cortisol and 11-KT levels were lower and higher, respectively, in territorial males. Finally, plasma cortisol levels positively correlated with the nuclear area of interrenal steroidogenic cells. Thus, the interrenal gland, by means of one of its products, cortisol, may be fulfilling an important role in the establishment of social hierarchies and their stability. © 2013 Elsevier Inc. |
| format |
JOUR |
| author |
Morandini, L. Honji, R.M. Ramallo, M.R. Moreira, R.G. Pandolfi, M. |
| author_facet |
Morandini, L. Honji, R.M. Ramallo, M.R. Moreira, R.G. Pandolfi, M. |
| author_sort |
Morandini, L. |
| title |
The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies |
| title_short |
The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies |
| title_full |
The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies |
| title_fullStr |
The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies |
| title_full_unstemmed |
The interrenal gland in males of the cichlid fish Cichlasoma dimerus: Relationship with stress and the establishment of social hierarchies |
| title_sort |
interrenal gland in males of the cichlid fish cichlasoma dimerus: relationship with stress and the establishment of social hierarchies |
| url |
http://hdl.handle.net/20.500.12110/paper_00166480_v195_n_p88_Morandini |
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