Development of melanin-concentrating hormone-immunoreactive elements in the brain of gilthead seabream (Sparus auratus)

Cell and Tissue Research
J M Mancera, P Fernández-Llebrez

Abstract

The development of the hypothalamic melanin-concentrating hormone (MCH) system of the teleost Sparus auratus has been studied by immunocytochemistry using an anti-salmon MCH serum. Immunoreactive perikarya and fibers are found in embryos, larvae, and juvenile specimens. In juveniles, most labeled neurons are present in the nucleus lateralis tuberis; some are dispersed in the nucleus recessus lateralis and nucleus periventricularis posterior. From the nucleus lateralis tuberis, MCH neurons project a conspicuous tract of fibers to the ventral hypothalamus; this penetrates the pituitary stalk and reaches the neurohypophysis. Most fibers end close to the cells of the pars intermedia, and some reach the adenohypophysial rostral pars distalis. Immunoreactive fibers can also be seen in extrahypophysial localizations, such as the preoptic region and the nucleus sacci vasculosi. In embryos, MCH-immunoreactive neurons first appear at 36h post-fertilization in the ventrolateral margin of the developing hypothalamus. In larvae, at 4 days post-hatching, perikarya can be observed in the ventrolateral border of the hypothalamus and in the mid-hypothalamus, near the ventricle. At 26 days post-hatching, MCH perikarya are restricted to the nucle...Continue Reading

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Citations

Dec 4, 2009·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Ying Li, Anthony N van den Pol
Oct 24, 2012·Frontiers in Neuroendocrinology·S CroizierP Y Risold
Aug 4, 2009·Peptides·P Y RisoldB Griffond
Jun 24, 2005·The Journal of Comparative Neurology·Gema HuesaThomas E Finger
Sep 24, 1999·The Journal of Comparative Neurology·A CastroR Anadón
Dec 19, 2019·Frontiers in Neuroscience·Giovanne B Diniz, Jackson C Bittencourt
Jun 15, 2017·Frontiers in Systems Neuroscience·Giovanne B Diniz, Jackson C Bittencourt

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