The effects of replacing eggs with chicks on mesotocin, dopamine, and prolactin in the native Thai hen

Sinpru, Panpradub; Sartsoongnoen, Natagarn; Rozenboim, Israel; Porter, Tom E.; Halawani, Mohamed E. El; Chaiseha, Yupaporn

doi:10.1016/j.ygcen.2018.04.013

Cited by 12 publications

(15 citation statements)

References 60 publications

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“…It has been well documented that PRL is an essential factor in regulating incubation behavior in domestic birds (El Halawani et al, ; Riddle, Bates, & Dykshorn, ; Riddle, Bates, & Lahr, ; Sharp, Scanes, Williams, Harvey, & Chadwick, ; Youngren et al, ; Zadworny, Walton, & Etches, ). In addition, recent observations indicate that VIPergic, dopaminergic, and mesotonergic system is associated with occurrence of incubation behavior (Namken, Sinpru, Kamkrathok, Sartsoongnoen, & Chaiseha, ; Sinpru et al, ). Nonetheless, the distinct molecular mechanism underlying in the onset and maintenance of this behavior has not been fully understood.…”

Section: Discussionmentioning

confidence: 99%

“…It has been well documented that PRL is an essential factor in regulating incuba- Zadworny, Walton, & Etches, 1985). In addition, recent observations indicate that VIPergic, dopaminergic, and mesotonergic system is associated with occurrence of incubation behavior (Namken, Sinpru, Kamkrathok, Sartsoongnoen, & Chaiseha, 2017;Sinpru et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

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Identification of hypothalamic genes in associating with food intake during incubation behavior in domestic chicken

Takeda

Ohkubo

2019

Animal Science Journal

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The molecular mechanism underlying in the onset and maintenance of incubation behavior are not fully understood, and it is still unknown the reason why White Leghorn, a layer strain, hens never display incubation behavior. Therefore, to explore specific hypothalamic genes regulating incubation behavior, cap analysis of gene expression (CAGE) were applied to comparison between incubating Silkie and laying White Leghorn hens. In addition, mRNA expression of some differentially expressed genes (DEGs) and melanocortinergic appetite genes including agouti‐related peptide (AgRP) and pro‐opiomelanocortin (POMC) was also analyzed on Silkie hens under natural anorexia and starvation. The CAGE identified 217 hypothalamic DEGs in incubating Silkie hens, and that of two, transthyretin (TTR) and prolactin‐releasing peptide (PrRP), suggested as appetite gene, were markedly up– and down‐regulated in incubating hens, respectively. In addition, AgRP and POMC expression also increased in incubating bird. mRNA expression of TTR, PrRP, and appetite genes were not differed significantly by starvation, although TTR mRNA expression was relatively high in fasting hens. Consequently, transcriptome by CAGE identified a number of hypothalamic genes differentially expressed by incubation behavior in Silkie hens. Of these, it is suggested that TTR and PrRP may, at least in part, be related to adaptation to natural anorexia in incubating Silkie chickens.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Identification of hypothalamic genes in associating with food intake during incubation behavior in domestic chicken

Takeda

Ohkubo

2019

Animal Science Journal

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“…Both studies found that the number of mesotocin-immunoreactive neurons was higher in specific hypothalamic nuclei of incubating than of non-incubating laying hens. While in the first chicken study showed no major differences in mesotocin-immunoreactive neurons between incubating and chick-brooding hens, a subsequent study on the same species found that hens that had been incubating eggs naturally and had their eggs swapped by chicks, had higher numbers of neurons showing mesotocin-immunoreactivity than hens that continued incubating eggs and received no chicks [40]. Combined, these studies suggest that mesotocin is important for transitions between parental care stages in some bird species.…”

Section: Discussionmentioning

confidence: 99%

Brain transcriptomic changes in Japanese quail reveal roles for neurotensin and urocortin 3 in avian parental care

Lopes

Bruijn

2020

Preprint

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For many species, parental care critically affects offspring survival. But what drives animals to display parental behaviours towards young? In mammals, pregnancy-induced physiological transformations seem key in preparing the neural circuits that lead towards attraction (and reduced-aggression) to young. Beyond mammalian maternal behaviour, knowledge of the neural mechanisms that underlie parental care is severely lacking. We took advantage of a domesticated bird species, the Japanese quail, for which parental behaviour towards chicks can be induced through a sensitization procedure, a process that is not effective in all animals. We used the variation in parental responses to study neural transcriptomic changes associated with the sensitization procedure itself, with the outcome of the procedure (i.e., presence of parental behaviours) and with spontaneous parental care (i.e., in the absence of sensitization). Out of the brain regions studied, we found that most differences in gene expression were located in the hypothalamus. Our results highlight several molecular pathways that may contribute to the modulation of avian parental care. We identified one gene, neurotensin, that was previously only demonstrated to be causally associated with parental care in mammals. Our work opens new avenues of research into understanding the neural basis of parental care in non-mammalian species.

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“…Thus, it is plausible that somatosensory input from the eggs itself can evoke prolactin secretion via neuronal pathways (Massaro et al, 2007). Indeed, swapping eggs from the parents leads to reduced serum prolactin levels (Sinpru et al, 2018). The potential neuronal pathways involved have not been revealed to date.…”

Section: Ventromedial Nucleus Ventrolateral (Vmhvl)mentioning

confidence: 99%

Secretion and Function of Pituitary Prolactin in Evolutionary Perspective

et al. 2020

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The hypothalamo-pituitary system developed in early vertebrates. Prolactin is an ancient vertebrate hormone released from the pituitary that exerts particularly diverse functions. The purpose of the review is to take a comparative approach in the description of prolactin, its secretion from pituitary lactotrophs, and hormonal functions. Since the reproductive and osmoregulatory roles of prolactin are best established in a variety of species, these functions are the primary subjects of discussion. Different types of prolactin and prolactin receptors developed during vertebrate evolution, which will be described in this review. The signal transduction of prolactin receptors is well conserved among vertebrates enabling us to describe the whole subphylum. Then, the review focuses on the regulation of prolactin release in mammals as we have the most knowledge on this class of vertebrates. Prolactin secretion in response to different reproductive stimuli, such as estrogen-induced release, mating, pregnancy and suckling is detailed. Reproduction in birds is different from that in mammals in several aspects. Prolactin is released during incubation in avian species whose regulation and functional significance are discussed. Little information is available on prolactin in reptiles and amphibians; therefore, they are mentioned only in specific cases to explain certain evolutionary aspects. In turn, the osmoregulatory function of prolactin is well established in fish. The different types of pituitary prolactin in fish play particularly important roles in the adaptation of eutherian species to fresh water environments. To achieve this function, prolactin is released from lactotrophs in hyposmolarity, as they are directly osmosensitive in fish. In turn, the released prolactin acts on branchial epithelia, especially ionocytes of the gill to retain salt and excrete water. This review will highlight the points where comparative data give new ideas or suggest new approaches for investigation in other taxa.

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The effects of replacing eggs with chicks on mesotocin, dopamine, and prolactin in the native Thai hen

Cited by 12 publications

References 60 publications

Identification of hypothalamic genes in associating with food intake during incubation behavior in domestic chicken

Identification of hypothalamic genes in associating with food intake during incubation behavior in domestic chicken

Brain transcriptomic changes in Japanese quail reveal roles for neurotensin and urocortin 3 in avian parental care

Secretion and Function of Pituitary Prolactin in Evolutionary Perspective

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