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Interrenal Gland (0):
Recent article
Interrenal Gland
Journal of Endocrinology (200)1 2009
Abstract
We describe central and peripheral sites for direct interaction between mediators of both neuroendocrine axes in the common carp (Cyprinus carpio). Despite suggestions in the literature that CRH is thyrotropic in some fish; we were not able to establish stimulatory effects of CRH on the expression o...
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PMID: 18931024
PDF is available here.
PDF is available here.
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Molecular Endocrinology (21)2 2007
Abstract
We studied the organogenesis of the interrenal organ, the teleost homolog of the mammalian adrenal gland, in zebrafish. To this end we compared wild-type zebrafish interrenal development with that of mutants lacking pituitary cell types including corticotrophs. In addition, we studied the effects of...
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PMID: 17082325
PDF is available here.
PDF is available here.
Abstract
Facilitation of the stress response results from a reduction of the inhibitory effects of circulating corticosteroids, allowing an animal to respond to a novel stressor. In this study, the existence of a facilitated cortisol stress response in normal (STD) and 17alpha-hydroxylase deficient XX mas-1/...
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PMID: 17188688
PDF is available here.
PDF is available here.
Abstract
The disruption of endocrine system function in wildlife species, including teleosts, by contaminants such as metals is presently of major environmental concern. Recently, it has been shown that cadmium (Cd) exposure results in significant reductions in corticosteroid secretion by fish interrenal ste...
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PMID: 17031756
PDF is available here.
PDF is available here.
Molecular Endocrinology (20)11 2006
Abstract
We report the isolation and characterization of a DAX1 homolog, dax1, in zebrafish. The dax1 cDNA encodes a protein of 264 amino acids, including the conserved carboxy-terminal ligand binding-like motif; but the amino-terminal region lacks the unusual repeats of the DNA binding-like domain in mammal...
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PMID: 16840536
PDF is available here.
PDF is available here.
Journal of Endocrinology (190)1 2006
Abstract
Highly unsaturated fatty acids are essential components of cellular membranes of vertebrates and can modulate physiological processes, including membrane transport, receptor function and enzymatic activities. In gilthead sea bream, dietary deficiencies of essential fatty acids of marine fish raise t...
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PMID: 16837609
PDF is available here.
PDF is available here.
Abstract
These results indicate that catecholamines released from the chromaffin cells within the interrenal tissue may act as a paracrine factor to stimulate interrenal steroidogenesis in the sea bass....
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PMID: 16443381
PDF is available here.
PDF is available here.
Abstract
The finding that thyrotropin-releasing hormone does not always act as a thyrotropin (TSH)-releasing factor in non-mammalian vertebrates has led researchers to believe that another hypothalamic factor may exhibit this function. In representatives of all non-mammalian vertebrate classes, corticotropin...
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PMID: 16337947
PDF is available here.
PDF is available here.
Abstract
I (UI), or pharmacological treatments or stressors that result in an increase in forebrain CRF and UI gene expression, can elicit dose-dependent reductions in food intake that are at least partially reversed by pre-treatment with a CRF receptor antagonist. In addition, the appetite suppressing effec...
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PMID: 16410007
PDF is available here.
PDF is available here.
Abstract
We investigated the relationship between adrenocorticotropic hormone (ACTH)- and cAMP-stimulated cortisol production in vitro and levels of StAR transcripts in interrenal cells of rainbow trout. To assess the effect of ACTH on mRNA levels of a downstream steroidogenic enzyme, we also investigated th...
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PMID: 16246334
PDF is available here.
PDF is available here.
Abstract
We isolated complementary DNAs encoding CYP11A and HSD3 from the freshwater stingray Potamotrygon motoro. The P. motoro CYP11A (2182 bp total length) and HSD3 (2248 bp total length) cDNAs harbor open reading frames that encode proteins of 542 and 376 amino acids (respectively) that are similar (CYP1...
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PMID: 16978895
PDF is available here.
PDF is available here.
Abstract
ACTH and ACTH receptor-like molecules were found at the examined stages of development (2, 4, 8, 12, 18, and 24 days post-hatching) in yolk sac, pronephros tubules, interrenal tissue, thymus, liver, spleen, cardinal veins, and skin of the teleost fish Dicentrarchus labrax. ACTH and the related recep...
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PMID: 16061067
PDF is available here.
PDF is available here.
Journal of Morphology (262)3 2004
Abstract
The influence of adrenocorticotropic hormone (ACTH) on the interrenal gland of Triturus carnifex was investigated by in vivo administration of synthetic ACTH. The effects were evaluated by examination of the ultrastructural morphological and morphometrical features of the tissues as well as the circ...
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PMID: 15487003
PDF is available here.
PDF is available here.
Abstract
The adrenal medulla in mammalian species is surrounded by a cortex that contains three distinct layers, whereas the cortex and medulla are intermingled in poultry species. The objective of the present study was to determine the distinct zonation changes in the adrenal cortex of geese in various ages...
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PMID: 15307661
PDF is available here.
PDF is available here.
Journal of Experimental Biology (207)Pt 1 2004
Abstract
We argue that the use of hsps as indicators of stressed states in fish in general is premature....
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PMID: 14638828
PDF is available here.
PDF is available here.
Abstract
Two experiments were carried out to investigate the influence of confinement stress on plasma cortisol levels and on the sensitivity of the interrenal cells to adrenocorticotropic hormone (ACTH) stimulation in sea bass Dicentrarchus labrax. Confining sea bass at 70 kg m(-3) for 24 h resulted in elev...
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PMID: 14613789
PDF is available here.
PDF is available here.
Abstract
We have cloned a cDNA encoding P450c21, for the first time in non-mammalian vertebrates, from the head kidney of the eel (Anguilla japonica). The overall similarity of the deduced P450c21 sequence was modest (41-44% amino acid identity) between the eel and mammals. However, the functional domains fo...
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PMID: 14519100
PDF is available here.
PDF is available here.
Developmental Biology (260)1 2003
Abstract
We propose that ff1b is required for the development of the steroidogenic tissue of the interrenal organ....
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PMID: 12885566
PDF is available here.
PDF is available here.
Interrenal responses to high ambient temperature in soft-shelled turtle, Lissemys punctata punctata.
Abstract
An exposure to ambient temperature of 25 degrees C had no perceptible effect on interrenal function but further increase of temperature to 35 degrees C caused nuclear hypertrophy with increase of nuclear diameter, RNA concentration, acid phosphatase and alkaline phosphatase activities, accompanied b...
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PMID: 15248489
PDF is available here.
PDF is available here.
Abstract
Sex steroids appear to be responsible for hyperactivation of the hypothalamus-pituitary-interrenal (HPI) axis that occurs in mature semelparous Pacific salmon as a prelude to post-spawning (programmed) death. This study was undertaken to examine the direct effects of sex steroids on interrenal activ...
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PMID: 12899856
PDF is available here.
PDF is available here.
Development (130)10 2003
Abstract
We studied zebrafish because of the ease of embryo manipulation. The adrenocortical equivalent in zebrafish is called the interrenal, because it is embedded in the kidney. We find that interrenal development parallels that of the embryonic kidney (pronephros). Primordial interrenal cells first appea...
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PMID: 12668625
PDF is available here.
PDF is available here.
Chemosphere (50)9 2003
Abstract
Precision-cut tissue slices of the anterior kidney from Atlantic cod (Gadus morhua) were prepared with a Krumdieck tissue slicer and exposed to 2-(2-chlorophenyl)-2-(4-chloro-(14C)phenyl)-1,1-dichlorethane (o,p(')-[14C]DDD) in vitro. Microautoradiography revealed irreversible o,p(')-DDD-derived bind...
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PMID: 12547339
PDF is available here.
PDF is available here.
Abstract
The adrenal homolog of teleosts is not a compact organ as the adrenal glands of most vertebrates but is composed by aminergic chromaffin and interrenal steroidogenic cells located mostly inside the head kidney that, in this taxon, generally has a hematopoietic function. The two tissues can be mixed,...
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PMID: 14692682
PDF is available here.
PDF is available here.
Abstract
In the present study the response of white sea-bream (Diplodus sargus), used as experimental model, to different stocking densities was tested to assess whether the induced stress conditions were able to activate a chemical communication. Once a good recovery was evident, six days after capture and...
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PMID: 12161203
PDF is available here.
PDF is available here.
Journal of Experimental Biology (205)Pt 3 2002
Abstract
These results suggest that selection for stress responsiveness in salmonid fish leads to behavioural alterations, which are of potential importance to the performance of these fish in aquaculture rearing operations....
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PMID: 11854375
PDF is available here.
PDF is available here.
Folia Biologica (Krakow) (50)3-4 2002
Abstract
The aim of the current work was to investigate the role of gonadotropins and female sex hormones on interrenal activity in soft-shelled turtles, Lissemys punctata punctata. 1) FSH treatment (3 microg/100 g body wt daily for 10 days) caused interrenal hypertrophy with increased nuclear diameter, rais...
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PMID: 12729156
PDF is available here.
PDF is available here.
Abstract
This work presents the structure and ultrastructure of the interrenal gland and chromaffin cells, as well as the morphology of the head kidney of Brycon cephalus. The head kidney is composed of fused bilateral lobes located anterior to the swim bladder and ventrolateral to the spinal column. The par...
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PMID: 11820404
PDF is available here.
PDF is available here.
Journal of Anatomy (199)Pt 3 2001
Abstract
The steroidogenic interrenal cells in the adrenal homologue of the male stickleback (Gasterosteus aculeatus) were studied in relation to the reproductive cycle by means of histological and ultrastructural observations, and using histochemical methods for the localisation of 3beta-hydroxysteroid dehy...
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PMID: 11554507
PDF is available here.
PDF is available here.
Abstract
I (UI). Central injections of CRF or UI, or treatments that result in an increase in hypothalamic CRF and UI gene expression, can elicit dose-dependent decreases in food intake that can be reversed by pre-treatment with a CRF-receptor antagonist. Evidence also suggests that cortisol, the end product...
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PMID: 11399500
PDF is available here.
PDF is available here.
Abstract
Dynamics of adrenocorticotropin (ACTH), alpha melanocyte-stimulating hormone (alpha-MSH), N-acetylated-beta-endorphin (N-ac-beta-END), cortisol, and growth hormone (GH) were investigated in gilthead sea bream (Sparus aurata) stressed by handling plus confinement. As indices of the secondary stress r...
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PMID: 11254375
PDF is available here.
PDF is available here.
Abstract
Plasma levels of cortisol, growth hormone (GH), adrenocorticotropin hormone (ACTH), alpha-melanocyte-stimulating hormone (alpha-MSH), N-acetyl-beta-endorphin, in vitro ACTH-stimulated cortisol secretion, and in vitro corticotropin-releasing hormone (CRH)- and thyrotropin-releasing hormone (TRH)-stim...
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PMID: 10936035
PDF is available here.
PDF is available here.
Abstract
ABSTRACT Despite the intensive study of endothelin (ET) in mammals, the primary structure and biological activity of the peptide is not known for any species of non-mammalian tetrapod. Extracts of the stomach and the liver of the European green frog Rana ridibunda contained ET-like immunoreactivity...
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PMID: 10750029
PDF is available here.
PDF is available here.
Abstract
The interrenal gland (the homologue of the mammalian adrenal cortex) of elasmobranchs (sharks, skates, and rays) produces 1alpha-hydroxycorticosterone (1alpha-B), which has been reported to function both as a gluco- and mineralocorticosteroid. In vitro synthesis of 1alpha-B by Atlantic stingray (Das...
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PMID: 10469989
PDF is available here.
PDF is available here.
Abstract
Comparative biochemistry and physiology. Part C, Pharmacology, toxicology & endocrinology (122)2 1999
Abstract
We injected toads exposed to coal combustion wastes and toads from an unpolluted reference site with adrenocorticotropic hormone (ACTH), as well as the vehicle alone (saline). Initial circulating levels of corticosterone in toads captured at the polluted area were significantly higher than levels in...
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PMID: 10190044
PDF is available here.
PDF is available here.
Molecular and Cellular Endocrinology (146)1-2 1998
Abstract
These results show that eel P450(11beta) does not possess significant aldosterone synthesizing activity. Northern blot analysis detected a 1.8 kb transcript of P450(11beta) using RNA extracted from interrenals of untreated Japanese eel but no hybridization signal was apparent using RNA extracted fro...
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PMID: 10022778
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to clarify the possible involvement of nitric oxide (NO) on prostaglandin (PG) E2-9-ketoreductase activity in the gonadotropin-releasing hormone (GnRH)-dependent PGF2 alpha synthesis by the interrenal gland of the female water frog, Rana esculenta, during the post-reproduct...
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PMID: 9653767
PDF is available here.
PDF is available here.
Journal of Endocrinology (157)1 1998
Abstract
Whole-body levels of ACTH, alpha-MSH and cortisol in eggs and larvae of the common carp (Cyprinus carpio) were determined periodically up until 168 h after fertilisation. ACTH, alpha-MSH and cortisol immunoreactivity was detected in unfertilised eggs, and endogenous production of ACTH and alpha-MSH...
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PMID: 9614366
PDF is available here.
PDF is available here.
Journal of Endocrinology (157)1 1998
Abstract
We report for the first time that beta-naphthoflavone (BNF) abolishes ACTH stimulation of cortisol production in rainbow trout (Oncorhynchus mykiss). There was significantly higher hepatic cytochrome P450 content and ethoxyresorufin O-de-ethylase and uridine-5'-diphosphoglucuronic acid transferase a...
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PMID: 9614358
PDF is available here.
PDF is available here.
Abstract
An in-vitro effect of nonapeptide neurohormone vasotocin on thyroid and interrenal glands was studied in hybrid of Siberian and Lena sturgeons [correction of salmons] at light microscopy level using morphometric method. At a concentration of 0.1 and 1 nmol/l vasotocin was shown to exert undirectional...
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PMID: 9826823
PDF is available here.
PDF is available here.
Journal of Endocrinology (156)1 1998
Abstract
Only C-type natriuretic peptide (CNP) has been identified in primitive elasmobranch fish. CNP is the most conserved molecule in the natriuretic peptide family, suggesting that it is the ancestral type. As a first step to investigating the ancestral type of natriuretic peptide receptors, CNP receptor...
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PMID: 9496242
PDF is available here.
PDF is available here.
Abstract
We suggest that assessment of these parameters of the HPI axis may be useful indices of chronic environmental stress in trout.
Copyright 1997 Academic Press....
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PMID: 9405110
PDF is available here.
PDF is available here.
Abstract
Activation of the hypothalamus-pituitary-interrenal (HPI) axis is characteristic of stress responses, which may result from a variety of environmental challenges. To investigate whether the stress response, and in particular the HPI axis, in tilapia (Oreochromis mossambicus) is compromised by short-...
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PMID: 9405123
PDF is available here.
PDF is available here.
Abstract
Physiological levels of 17alpha,20beta-dihydroxy-4-pregnen-3-one (17, 20-P) stimulated time- and dose-dependent increases in cortisol production by rainbow trout (Oncorhynchus mykiss) interrenal tissue cultured in vitro. Significant stimulation occurred in response to 100, 300, and 1000 ng/ml of 17,...
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PMID: 9245525
PDF is available here.
PDF is available here.
American Journal of Physiology -- Legacy Content (273)1 Pt 2 1997
Abstract
I [amino acid (AA) positions 1-7] and [Asn1, Val5]ANG I (AA 1-6), respectively. Pretreatment with either losartan (10(-5) M), PD-123319 (10(-5) M), or hexamethonium (10(-3) M) had no effect on [Asn1, Val5]ANG II-elicited catecholamine release. Pretreatment with captopril (10(-4) M) significantly red...
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PMID: 9249532
PDF is available here.
PDF is available here.
Abstract
Abstract
We conclude that administration of Ang II leads, either directly or indirectly, to synthesis and release of aldosterone from the interrenal tissues of larval Ambystoma tigrinum and that this rise can be significantly attenuated by saralasin. We furthermore conclude that although the renin-angiotensi...
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PMID: 9000464
PDF is available here.
PDF is available here.
Abstract
Administration (i.m.) of synthetic mammalian LHRH (40 ng/frog, alternate day for 30 days) to adult male intact frogs R. cyanophlyctis resulted in activation of the interrenal cells as shown by increases in nuclear diameters of the interrenal cells, activity (histochemical demonstration) of delta 5-3...
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PMID: 9055652
PDF is available here.
PDF is available here.
Abstract
Interrenal activity in relation to sexual maturity in male rainbow trout, and the effects of in vivo treatment with 11-ketotestosterone (11-KT) were investigated. Silastic pellets containing either 11-KT or no steroid were implanted in maturing male and immature male and female rainbow trout for a t...
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PMID: 8812400
PDF is available here.
PDF is available here.
Abstract
The enzymatic activity of 3 beta-hydroxysteroid dehydrogenase 5-ene isomerase (3 beta HSD/I) catalyzes an essential step in the biosynthesis of steroid hormones including progesterone, mineralocorticoids, glucocorticoids, estrogens, and androgens. Its subcellular localization in steroidogenic tissue...
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PMID: 8812365
PDF is available here.
PDF is available here.
Abstract
Antisera against bovine adrenodoxin and cytochrome P-450(21) (steroid 21-hydroxylase) cross-reacted with the interrenal cells of the adult Asian seabass (Lates calcarifer); the cells were arranged as cords, two cells thick, in the headkidney. During larval development, cells immunoreactive for adren...
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PMID: 8860319
PDF is available here.
PDF is available here.
Cell and Tissue Research (283)1 1996
Abstract
Immunocytochemistry was used to investigate the presence of corticotropin-releasing factor-like peptides in the interrenal (adrenal) glands of the bullfrog Rana catesbeiana by using specific antisera raised against synthetic nonconjugated rat/human corticotropin-releasing factor, urotensin I, and sa...
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PMID: 8581951
PDF is available here.
PDF is available here.
Abstract
We conclude that (1) the final maturation of the corticosteroid stress response in rainbow trout occurs at the level of the brain and/or sensory inputs and not at the level of the interrenal cell; (2) negative feedback mechanisms within the HPI axis develop 3 to 4 weeks after hatching; and (3) the p...
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PMID: 8536950
PDF is available here.
PDF is available here.
Abstract
A significant reduction in stress-induced plasma cortisol levels is apparent in mature male rainbow trout compared to immature fish of both sexes and of the same age and strain. Mean plasma cortisol levels in groups of immature fish subjected to a standard 1-hr confinement stress were consistently h...
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PMID: 7628690
PDF is available here.
PDF is available here.
Abstract
Plasma levels of ACTH, alpha-MSH, and N-ac-beta-END, and in vitro interrenal ACTH sensitivity were investigated in rainbow trout (Oncorhynchus mykiss) stressed by confinement and in unstressed fish treated with exogenous cortisol. Within 3 hr after the onset of confinement, plasma cortisol and ACTH...
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PMID: 7628687
PDF is available here.
PDF is available here.
Cellular Signalling (7)3 1995
Abstract
These results suggest that GnRH stimulates 9-ketoreductase enhancing PGF2 alpha which in turn activates aromatase through cAMP mediation in the interrenal of Rana esculenta....
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PMID: 7544992
PDF is available here.
PDF is available here.
Abstract
To gain insight in immuno-endocrine communication in teleosts the physiological effects of interleukin 1 and bacterial lipopolysaccharide in teleosts were investigated. Tilapia (Oreochromis mossambicus) were treated with murine interleukin 1 and E. coli lipopolysaccharide in vivo, and lipopolysaccha...
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PMID: 7622674
PDF is available here.
PDF is available here.
Abstract
The ontogeny of the interrenal stress response in rainbow trout was characterized by measuring resting and acute-stress-induced changes in whole-body cortisol levels in embryos and larvae at different early developmental stages. In Experiment 1, resting cortisol levels averaged 6.0 ng/g in newly fer...
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PMID: 7713384
PDF is available here.
PDF is available here.
Abstract
This study examines ACTH-like immunoreactivity in the pituitary pars distalis and pars intermedia of the freshwater teleost Oreochromis mossambicus (tilapia). Two products (tACTHA and tACTHB) were present in both lobes. These two products also accounted for the majority of the ACTH i.r. when in vitr...
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PMID: 7883141
PDF is available here.
PDF is available here.
Abstract
I and II (UI and UII), stimulate cortisol secretion by interrenal preparations of seawater (SW) and freshwater (FW) adapted trout. Steroid secretion was not disturbed in sham-treated control groups. The increased cortisol secretion following perifusion of tissue with 10(-7) M ACTH in combination wit...
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PMID: 7843571
PDF is available here.
PDF is available here.