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Abstract:

Distribution and development of the melanin-concentrating hormone (MCH) system were examined by immunocytochemistry of the brain, pituitary gland and skin of the South American cichlid fishCichlasoma dimerus. In adults, the most prominent group of MCH-ir perikarya was located in the nucleus lateralis tuberis (NLT). Outside the NLT, in the posterior hypothalamic region, a group of small neurons was found between the third ventricle and the lateral ventricular recess with delicate immunoreactive fibers that did not seem to contribute to the pituitary innervation. MCH-ir perikarya were identified at day 4 after hatching (AH) in a proliferating zone of the hypothalamic floor. Pituitary innervation could be detected at this stage. Another group of small MCH-ir neurons, only detected in pre-juvenile stages, originated close to the third ventricle in the medial hypothalamic region by day 6 AH.αMSH-ir neurons were localized in similar regions of the NLT and in the nucleus periventricularis posterior (NPP). Free MCH-ir neuromasts were detected in the ventral and dorsal skin of larval heads. These epidermal sensory organs were in close association with blood vessels and dermal melanocytes, suggesting that MCH synthesized in larval skin might act in an endocrine way reaching different targets and/or in a paracrine mode regulating melanin concentration in dermal melanocytes.

Registro:

Documento: Artículo
Título:Melanin-concentrating hormone system in the brain and skin of the cichlid fish Cichlasoma dimerus: Anatomical localization ontogeny and distribution in comparison to α-melanocyte-stimulating hormone-expressing cells
Autor:Pandolfi, M.; Cánepa, M.M.; Ravaglia, M.A.; Maggese, M.C.; Paz, D.A.; Vissio, P.G.
Filiación:Dpto. de Biodiversidad y Biol. Exp., Universidad de Buenos Aires, Ciudad Universitaria, (C1428EHA) Buenos Aires, Argentina
Palabras clave:αMSH; Brain; Cichlasoma dimerus(Teleostei); Development; Immunocytochemistry; MCH; Neuromasts; Pituitary gland; intermedin; melanin; melanin concentrating hormone; alpha intermedin; hypophysis hormone; hypothalamus hormone; melanin; melanin concentrating hormone; melanin-concentrating hormone; animal tissue; article; blood vessel; brain; brain third ventricle; cichlid; controlled study; epidermis; female; hypophysis; hypothalamus nucleus; hypothalamus periventricular nucleus; immunohistochemistry; immunoreactivity; larva; lateral brain ventricle; male; melanocyte; nerve cell; nonhuman; ontogeny; perikaryon; posterior hypothalamus; priority journal; sense organ; skin; animal; animal embryo; chemistry; cichlid; cytology; melanocyte; posterior hypothalamus; prenatal development; skin; Animalia; Cichlasoma; Cichlidae; Teleostei; alpha-MSH; Animals; Cichlids; Embryo, Nonmammalian; Hypothalamic Hormones; Hypothalamus, Posterior; Immunohistochemistry; Melanins; Melanocytes; Neurons; Pituitary Gland; Pituitary Hormones; Skin
Año:2003
Volumen:311
Número:1
Página de inicio:61
Página de fin:69
DOI: http://dx.doi.org/10.1007/s00441-002-0654-4
Título revista:Cell and Tissue Research
Título revista abreviado:Cell Tissue Res.
ISSN:0302766X
CODEN:CTSRC
CAS:alpha-MSH, 581-05-5; Hypothalamic Hormones; melanin-concentrating hormone, 67382-96-1; Melanins; Pituitary Hormones
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0302766X_v311_n1_p61_Pandolfi

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Citas:

---------- APA ----------
Pandolfi, M., Cánepa, M.M., Ravaglia, M.A., Maggese, M.C., Paz, D.A. & Vissio, P.G. (2003) . Melanin-concentrating hormone system in the brain and skin of the cichlid fish Cichlasoma dimerus: Anatomical localization ontogeny and distribution in comparison to α-melanocyte-stimulating hormone-expressing cells. Cell and Tissue Research, 311(1), 61-69.
http://dx.doi.org/10.1007/s00441-002-0654-4
---------- CHICAGO ----------
Pandolfi, M., Cánepa, M.M., Ravaglia, M.A., Maggese, M.C., Paz, D.A., Vissio, P.G. "Melanin-concentrating hormone system in the brain and skin of the cichlid fish Cichlasoma dimerus: Anatomical localization ontogeny and distribution in comparison to α-melanocyte-stimulating hormone-expressing cells" . Cell and Tissue Research 311, no. 1 (2003) : 61-69.
http://dx.doi.org/10.1007/s00441-002-0654-4
---------- MLA ----------
Pandolfi, M., Cánepa, M.M., Ravaglia, M.A., Maggese, M.C., Paz, D.A., Vissio, P.G. "Melanin-concentrating hormone system in the brain and skin of the cichlid fish Cichlasoma dimerus: Anatomical localization ontogeny and distribution in comparison to α-melanocyte-stimulating hormone-expressing cells" . Cell and Tissue Research, vol. 311, no. 1, 2003, pp. 61-69.
http://dx.doi.org/10.1007/s00441-002-0654-4
---------- VANCOUVER ----------
Pandolfi, M., Cánepa, M.M., Ravaglia, M.A., Maggese, M.C., Paz, D.A., Vissio, P.G. Melanin-concentrating hormone system in the brain and skin of the cichlid fish Cichlasoma dimerus: Anatomical localization ontogeny and distribution in comparison to α-melanocyte-stimulating hormone-expressing cells. Cell Tissue Res. 2003;311(1):61-69.
http://dx.doi.org/10.1007/s00441-002-0654-4