Comparative aspects of the pineal/melatonin system of poikilothermic vertebrates

@article{Filadelfi1996ComparativeAO,
  title={Comparative aspects of the pineal/melatonin system of poikilothermic vertebrates},
  author={A. M. Filadelfi and A. Castrucci},
  journal={Journal of Pineal Research},
  year={1996},
  volume={20}
}
Abstract: The pineal gland of poikilothermic vertebrates originates as an evagination from the diencephalic roof between the habenular and the posterior commissures, and associates with a parapineal organ to form the so‐called pineal complex. The pinealocytes may be photosensitive, secretory or intermediate cells between both. Melatonin, the indoleamine secreted by the pineal, exhibits a circadian secretory rhythm that conveys environmental information to the organism. The peak melatonin… Expand
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It is concluded that the pineal organs of both species, at least during the austral summer, exhibit signs of being directly photo-sensitive. Expand
Melatonin in non-mammalian vertebrates: Physiological role in reproduction?
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The data available to date do not support the concept that melatonin plays an important physiological role in the photoperiodic control of reproduction in non-mammalians. Expand
Melatonin does not affect the black pigment migration in the crab Neohelice granulata
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Seasonal variation in the activity of melatonin synthesis in cultivated pineal body of fresh water teleost: Zacco temmincki
TLDR
The results indicate clearly that the circadian rhythm exists in the melatonin synthesis of the pineal body in Zacco temmincki. Expand
Regulation of Melanopsins and Per1 by α-MSH and Melatonin in Photosensitive Xenopus laevis Melanophores
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The results demonstrate that unlike what has been reported for other peripheral clocks and cultured cells, medium changes or hormones do not play a major role in synchronizing the Xenopus melanophore population. Expand
The expression of melanopsin and clock genes in Xenopus laevis melanophores and their modulation by melatonin
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It is suggested that the dermal melanophores of X. laevis might have some characteristics of a peripheral clock, and that melatonin modulates, to a certain extent, melanopsin and clock gene expression. Expand
Melatonin as a Hormone: New Physiological and Clinical Insights.
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Maternal melatonin programs the fetuses' behavior and physiology to cope with the environmental light/dark cycle and season after birth, and unique ways of action turn melatonin into a biological time-domain-acting molecule. Expand
Pharmacology of Melatonin and Its Receptors
TLDR
This chapter discusses in detail the various aspects of melatonin with its key role in the body and how this versatile hormone and its receptors work in a synchronized way to alter the pathophysiological processes of the body according to the biological clock and circadian rhythm. Expand
Melatonina: actualidad de una hormona olvidada Melatonin: the actuality of a forgotten hormone
TLDR
Melatonin, a hormone whose importance was not recognized until relatively recently, has the possibility, to serve as a transducer between the ambient light changes and the rhythm of the cycles of various biological processes (circadian or seasonal rhythms), among other functions. Expand
Possible role of non-classical chromatophorotropins on the regulation of the crustacean erythrophore.
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It is demonstrated that besides PCH and PDH, CCAP and melatonin also regulate the pigment migration within the crustacean erythrophore. Expand
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