Arginine vasotocin-melatonin interactions in fish: a hypothesis

Kulczykowska, Ewa

doi:10.1007/bf01103367

Cited by 24 publications

(7 citation statements)

References 34 publications

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“…Vasotocin projections are found throughout the teleost brain, especially in forebrain and hindbrain regions [10,14,17,25,34,48]. Surprisingly, in C. dimerus, no immunolabeling was observed in extra-hypothalamic regions, except for the pineal complex, where AVT is believed to play a role in the coordination between photoperiodic cues and reproductive events [27]. Noteworthy is the fact that the above mentioned studies where AVT fibres were broadly observed across the brain of different fish species, used frozen IHC protocols in contrast to the paraffin based protocol used here.…”

Section: Discussionmentioning

confidence: 65%

Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus

Ramallo

Grober

Canepa

et al. 2012

General and Comparative Endocrinology

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Section: Discussionmentioning

confidence: 65%

Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus

Ramallo

Grober

Canepa

et al. 2012

General and Comparative Endocrinology

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“…Functional analysis of differentially expressed genes also highlighted that xenobiotic metabolism was co-regulated with melatonin-related genes. Melatonin hormone is secreted by the pineal gland and it is an important player in several functions related to osmoregulation [ 58 – 60 ], but also to interact with other well-known osmoregulatory fish hormones produced in the hypothalamus, like arginine vasotocin or isotocin [ 61 , 62 ]. In addition, salinity transfer promoted thyroid hormone metabolism in peripheral tissues (e.g.…”

Section: Discussionmentioning

confidence: 99%

Unraveling the Tissue-Specific Gene Signatures of Gilthead Sea Bream (Sparus aurata L.) after Hyper- and Hypo-Osmotic Challenges

et al. 2016

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A custom microarray was used for the transcriptomic profiling of liver, gills and hypothalamus in response to hypo- (38‰ → 5‰) or hyper- (38‰ → 55‰) osmotic challenges (7 days after salinity transfer) in gilthead sea bream (Sparus aurata) juveniles. The total number of differentially expressed genes was 777. Among them, 341 and 310 were differentially expressed in liver after hypo- and hyper-osmotic challenges, respectively. The magnitude of changes was lower in gills and hypothalamus with around 131 and 160 responsive genes in at least one osmotic stress condition, respectively. Regardless of tissue, a number of genes were equally regulated in either hypo- and hyper-osmotic challenges: 127 out of 524 in liver, 11 out of 131 in gills and 19 out of 160 in hypothalamus. In liver and gills, functional analysis of differentially expressed genes recognized two major clusters of overlapping canonical pathways that were mostly related to “Energy Metabolism” and “Oxidative Stress”. The later cluster was represented in all the analyzed tissues, including the hypothalamus, where differentially expressed genes related to “Cell and tissue architecture” were also over-represented. Overall the response for “Energy Metabolism” was the up-regulation, whereas for oxidative stress-related genes the type of response was highly dependent of tissue. These results support common and different osmoregulatory responses in the three analyzed tissues, helping to load new allostatic conditions or even to return to basal levels after hypo- or hyper-osmotic challenges according to the different physiological role of each tissue.

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“…Another possible action of melatonin in osmoregulation could be through interactions with growth hormone (GH) and arginine‐vasotocin (AVT), hormones clearly associated with electrolyte balance. Thus, melatonin synthesis and/or release in rainbow trout Oncorhynchus mykiss is inhibited during osmotic acclimation when plasma AVT levels are elevated (Kulczykowska 1995, 2001). Moreover, pinealectomy and/or melatonin treatment affects a number of GH‐ and prolactin (PRL)‐related processes including plasma electrolyte balance (Falcón et al 2003).…”

Section: Changes In Osmolality and Levels Of Glucose And Sodium In mentioning

confidence: 99%

Melatonin treatment affects the osmoregulatory capacity of rainbow trout

Sangiao‐Alvarellos¹,

Míguez²,

Soengas³

2007

Aquaculture Res

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Arginine vasotocin-melatonin interactions in fish: a hypothesis

Cited by 24 publications

References 34 publications

Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus

Arginine-vasotocin expression and participation in reproduction and social behavior in males of the cichlid fish Cichlasoma dimerus

Unraveling the Tissue-Specific Gene Signatures of Gilthead Sea Bream (Sparus aurata L.) after Hyper- and Hypo-Osmotic Challenges

Melatonin treatment affects the osmoregulatory capacity of rainbow trout

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