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1-19 of 19
Keywords: prolactin
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2022) 225 (24): jeb244820.
Published: 23 December 2022
... and prolactin release from the pituitary to maintain parental care. The degree to which animals react to and recover from stressors likely affects maintenance of parental behavior and, ultimately, fitness. However, less is known about how gaining parental experience may alter hormonal stress responses...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2015) 218 (5): 731–739.
Published: 1 March 2015
.... This was addressed through the use of an abrupt exposure to a change in salinity. We measured changes in: (1) plasma osmolality and prolactin (PRL) levels; (2) pituitary expression of prolactin (PRL) and its receptors, PRLR1 and PRLR2; (3) branchial expression of PRLR1, PRLR2, Na + /Cl − co-transporter (NCC), Na...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2013) 216 (17): 3358–3368.
Published: 1 September 2013
... of the fur was positively related to circulating prolactin levels. We implanted non-reproductive gerbils with mini-osmotic pumps that delivered either prolactin or saline. Prolactin did not influence thermal conductance of the fur, but did reduce physical activity and UCP-1 levels in brown adipose tissue...
Includes: Supplementary data
Journal Articles
A. Ferlazzo, E. S. M. Carvalho, S. F. Gregorio, D. M. Power, A. V. M. Canario, F. Trischitta, J. Fuentes
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (21): 3836–3844.
Published: 1 November 2012
...A. Ferlazzo; E. S. M. Carvalho; S. F. Gregorio; D. M. Power; A. V. M. Canario; F. Trischitta; J. Fuentes SUMMARY The pituitary hormone prolactin is a pleiotropic endocrine factor that plays a major role in the regulation of ion balance in fish, with demonstrated actions mainly in the gills...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (10): 1691–1699.
Published: 15 May 2012
... to classical neurotransmitters and nitric oxide but produced light after melatonin (MT) application. Prolactin and α-melanocyte-stimulating hormone inhibited this hormonally induced luminescence as well as the spontaneous luminescence from the photogenic tissue. The action of MT seems to be mediated by binding...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2011) 214 (24): 4160–4170.
Published: 15 December 2011
... at peak lactation was strongly and negatively associated with the expression of thermogenic genes in BAT. Downregulation of these genes during lactation was correlated with low levels of circulating leptin and high levels of circulating prolactin. Our results are consistent with the HDL theory. However...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2011) 214 (17): 2919–2926.
Published: 1 September 2011
... may be associated with reproductive experiences, but the effects of reproductive experiences on SusEI or reproductive output remain unclear. Here, food intake, reproductive output, suckling behaviour and serum prolactin levels were measured in female Swiss mice throughout the 1st, 2nd, 3rd and 4th...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2010) 213 (17): 3005–3011.
Published: 1 September 2010
...Julien M. Claes; Jenny Krönström; Susanne Holmgren; Jérôme Mallefet SUMMARY Photophores (photogenic organs) of the lantern shark Etmopterus spinax are under hormonal control, with prolactin (PRL) and melatonin (MT) triggering the light emission. Differential sensitivity to these hormones in adult...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2010) 213 (11): 1852–1858.
Published: 1 June 2010
... that in the largest of these zones (ventral zone), photophores are under hormonal control, light being triggered by both melatonin (MT) and prolactin (PRL). In this study, we analysed the luminescent responses to MT and PRL in five other luminous zones from 12 female and eight male E. spinax specimens. The results...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2009) 212 (22): 3684–3692.
Published: 15 November 2009
.... Isolated photophore-filled skin patches produced light under melatonin (MT) and prolactin (PRL) stimulation in a dose-dependent manner but did not react to classical neurotransmitters. Theα-melanocyte-stimulating hormone (α-MSH) had an inhibitory effect on hormonal-induced luminescence. Because luzindole...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2009) 212 (13): 2007–2015.
Published: 1 July 2009
...Diego F. Fiol; Enio Sanmarti; Romina Sacchi; Dietmar Kültz SUMMARY A novel tilapia prolactin (PRL) receptor ( Om PRLR2) was identified based on its induction during hyperosmotic stress. Om PRLR2 protein shows 28% identity to tilapia Om PRLR1 and 26% identity to human PRLR. Comparison of Om PRLR1...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2006) 209 (8): 1413–1420.
Published: 15 April 2006
... of this behaviour in emperor penguins ( Aptenodytes forsteri ), whose failed breeders often kidnap chicks. We experimentally tested the hypothesis that kidnapping behaviour was the result of high residual levels of prolactin (PRL), a hormone involved in parental behaviour. Penguins with artificially decreased PRL...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (13): 2273–2280.
Published: 1 July 2003
.... As for hormonal control over permeability, prolactin mRNA expression (and anticipated production and release) is lower in fish kept at 29°C, suggesting that control over branchial permeability to water and ions needs to be downregulated at higher temperatures. In so doing, enhanced sodium pump activity...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (8): 1319–1323.
Published: 15 April 2003
...Makoto Takada; Miyoko Kasai SUMMARY The short-term effect of prolactin on the skin of the adult tree frog Hyla arborea japonica was investigated using current-fluctuation analysis. Basolateral application of ovine prolactin (10 μg ml -1 ) (1) increased the amiloride-blockable short-circuit current...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (7): 1137–1142.
Published: 1 April 2003
...Makoto Takada; Miyoko Kasai SUMMARY Prolactin (PRL) has, for some years, been considered to be the `juvenile hormone' in amphibians. Recently, growth hormone (GH) has been proposed as another candidate, because in the larval stages the expression of the mRNA GH is high but it is downregulated...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (23): 4031–4042.
Published: 1 December 2001
... and incubated with the hormones dexamethasone (10 μmol l –1 ), prolactin (1 μmol l –1 ) or triiodothyronine (100 μmol l –1 ) or with the autonomic secretagogues isoproterenol (100 μmol l –1 ) or carbamylcholine chloride (100 μmol l –1 ). Basal secretion of PC was greater at 30 days of age than at 70 days. Co...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (1996) 199 (12): 2573–2578.
Published: 1 December 1996
..., hydrocortisone (HC) and corticosterone (C), each either supplemented with prolactin (PRL) or lacking PRL. Skin cultured with Aldo alone or with the corticoid mixture (Aldo+HC+C) developed an adult-type epidermis: (i) both types of skin reacted to human blood group antigen A, a marker for the adult-type epidermis...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (1996) 199 (11): 2467–2475.
Published: 1 November 1996
...-strength sea water. Food-deprivation resulted in a significant increase in plasma concentrations of Na + , Cl − , cortisol, glucose, total amino acid, glutamate, serine and alanine, and in hepatic pyruvate kinase (PK) and lactate dehydrogenase (LDH) activities, whereas the prolactin-188 to prolactin-177...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (1993) 184 (1): 31–45.
Published: 1 November 1993
... vertebrates. The pituitary is important in hypercalcaemic regulation in fish; prolactin exerts a hypercalcaemic action in addition to its well-established hypernatraemic effect. However, alternation of plasma calcium concentration may not be the primary factor influencing prolactin secretion; changes...