The Endocrine Response to Stress - A Comparative View

Tort, Lluís

doi:10.5772/21446

Cited by 13 publications

(17 citation statements)

References 80 publications

(65 reference statements)

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“…CRH binds to corticotrophinreleasing hormone receptors on corticotrophs located in the pars distalis of the anterior pituitary, and triggers the release of adrenocorticotropic hormone (ACTH). ACTH then stimulates the synthesis and release of glucocorticoids from the adrenal gland in tetrapods and the interrenal tissue in fish (Wendelaar Bonga, 1997;Tort and Teles, 2011 Abbreviations: HPA, hypothalamic-pituitary-adrenal; HPI, hypothalamic-pituitary-interrenal; ACTH, adrenocorticotropic hormone; CRH, corticotropin releasing hormone; MRM, multiple reaction monitoring; TIC, total ion current; UHPLC, ultra high performance liquid chromatography; UHPLC/MS/MS, ultra high performance liquid chromatography-tandem mass spectrometry.…”

Section: Introductionmentioning

confidence: 98%

“…Activation of the HPA/I axis triggers a release of corticotropin-releasing hormone (CRH), a neuropeptide released from the hypothalamic paraventricular nucleus or preoptic nucleus, in mammals and fish, respectively (Tort and Teles, 2011). CRH binds to corticotrophinreleasing hormone receptors on corticotrophs located in the pars distalis of the anterior pituitary, and triggers the release of adrenocorticotropic hormone (ACTH).…”

Section: Introductionmentioning

confidence: 99%

“…The stress response is found across all vertebrate groups (Tort and Teles, 2011) and is mediated by glucocorticoids acting on glucocorticoid receptors and ultimately causing changes in the expression of stress-response genes. The ability to perceive and respond to stressful situations is considered an adaptive response (Wendelaar Bonga, 1997;Barton, 2002), and it helps the organism cope with stressors by increasing the amount of available energy.…”

Section: Introductionmentioning

confidence: 99%

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A putative corticosteroid hormone in Pacific lamprey, Entosphenus tridentatus

Rai

Szeitz

Roberts

et al. 2015

General and Comparative Endocrinology

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A putative corticosteroid hormone in Pacific lamprey, Entosphenus tridentatus

Rai

Szeitz

Roberts

et al. 2015

General and Comparative Endocrinology

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“…The underlying endocrine patterns are evolutionarily conserved (Tort and Teles 2011). The renal steroidogenic cells of teleost fish release the corticosteroid cortisol through the hypothalamicpituitary-interrenal (HPI) axis into the blood circulation system.…”

Section: Introductionmentioning

confidence: 99%

Impact of Thermal Stress on Kidney-Specific Gene Expression in Farmed Regional and Imported Rainbow Trout

et al. 2015

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Seasonal water temperatures can be stressful for fish in aquaculture and can therefore negatively influence their welfare. Although the kidney is the crucial organ associated with the primary stress response, knowledge about the stress-modulated kidney transcriptome in salmonids is limited. In the present study, we used a comparative microarray approach to characterize the general gene expression profiles of rainbow trout trunk kidney after a 2-week acclimation to mild heat (23 °C) and cold stress (8 °C). Hypothesizing that local adaptation influences stress performance, we aimed to identify differences in the temperature-induced gene expression in the regional trout strain BORN, in addition to a common imported strain. Moderate temperature challenge provoked typical stress response clusters, including heat-shock proteins or cold-inducible factors, in addition to altered energy metabolism in trout kidney. Mild cold, in particular, enhanced renal protein degradation processes, as well as mRNA and protein synthesis, while it also triggered fatty acid biosynthesis. Mild heat led to cytoskeleton-stabilizing processes and might have facilitated cell damage and infection. Furthermore, both breeding lines used different strategies for energy provision, cellular defense, and cell death/survival pathways. As a main finding, the genes involved in energy provision showed generally higher transcript levels at both temperatures in BORN trout compared to imported trout, indicating adjusted metabolic rates under local environmental conditions. Altogether, this study provides a general overview of stress-induced transcriptional patterns in rainbow trout trunk kidney, in addition to identifying genes and networks that contribute to the robustness of the BORN strain. Our analyses suggest SERPINH1 and CIRBP as general marker genes for heat stress and cold stress in trout, respectively.

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“…GCs, including cortisol and/or corticosterone in mammals as well as cortisol in fish, are synthesized in the adrenal cortex of mammals, but in the interrenal tissue of the head kidneys in teleosts ( 39 ). In response to stress, the pituitary gland signals the adrenal gland/interrenal tissue to release GCs.…”

Section: Stress-induced Glucocorticoid Effects On Bone Mineral Metabomentioning

confidence: 99%

Stress, Glucocorticoids and Bone: A Review From Mammals and Fish

2018

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Glucocorticoids (GCs) are the final effector products of a neuroendocrine HPA/HPI axis governing energy balance and stress response in vertebrates. From a physiological point of view, basal GC levels are essential for intermediary metabolism and participate in the development and homeostasis of a wide range of body tissues, including the skeleton. Numerous mammalian studies have demonstrated that GC hormones exert a positive role during bone modeling and remodeling as they promote osteoblastogenesis to maintain the bone architecture. Although the pharmacological effect of the so-called stress hormones has been widely reported, the role of endogenous GCs on bone mineral metabolism as result of the endocrine stress response has been largely overlooked across vertebrates. In addition, stress responses are variable depending on the stressor (e.g., starvation, predation, and environmental change), life cycle events (e.g., migration and aging), and differ among vertebrate lineages, which react differently according to their biological, social and cognitive complexity (e.g., mineral demands, physical, and psychological stress). This review intends to summarize the endogenous GCs action on bone metabolism of mammals and fish under a variety of challenging circumstances. Particular emphasis will be given to the regulatory loop between GCs and the parathyroid hormone (PTH) family peptides, and other key regulators of mineral homeostasis and bone remodeling in vertebrates.

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The Endocrine Response to Stress - A Comparative View

Cited by 13 publications

References 80 publications

A putative corticosteroid hormone in Pacific lamprey, Entosphenus tridentatus

A putative corticosteroid hormone in Pacific lamprey, Entosphenus tridentatus

Impact of Thermal Stress on Kidney-Specific Gene Expression in Farmed Regional and Imported Rainbow Trout

Stress, Glucocorticoids and Bone: A Review From Mammals and Fish

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