Differential distribution of gonadotropin-releasing hormone variants in the brain of Hydrochaeris hydrochaeris (mammalia, rodentia)

1. In a previous paper we reported evidence for the presence of mGnRH- and sGnRH-like peptides in the preoptic-hypothalamic region of the capybara Hydrochaeris hydrochaeris (Montaner et al., 1998). In that study, the presence of a cGnRH-II like molecule in olfactory bulb extracts was suggested. 2. T...

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Autor principal: Montaner, A.D
Otros Autores: Affanni, J.M, King, J.A, Bianchini, J.J, Tonarelli, G., Somoza, G.M
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1999
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
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024 7 |2 cas  |a Gonadotropin-Releasing Hormone, 33515-09-2; LHRH, His(5)-Trp(7)-Tyr(8)-, 91097-16-4 
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030 |a CMNED 
100 1 |a Montaner, A.D. 
245 1 0 |a Differential distribution of gonadotropin-releasing hormone variants in the brain of Hydrochaeris hydrochaeris (mammalia, rodentia) 
260 |c 1999 
270 1 0 |m Somoza, G.M.; Instituto de Neurociencia, Departamento de Ciencias Biologicas, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina; email: somoza@bg.fcen.-uba.ar 
506 |2 openaire  |e Política editorial 
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504 |a King, J.A., Mehl, A.E.I., Tyndale-Biscoe, C.H., Hinds, L., Millar, R.P., A second form of GnRH, with chicken GnRH II-like properties, occurs together with mammalian GnRH in marsupial brains (1989) Endocrinology, 125, pp. 2244-2252 
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504 |a Montaner, A.D., Somoza, G.M., King, J.A., Bianchini, J.J., Bolis, C.G., Affanni, J.M., Identification of GnRH variants (mGnRH and sGnRH) in the forebrain of Hydrochaeris hydrochaeris (Mammalia, Rodentia) (1997) Advances in Comparative Endocrinology. Proceedings of the XIII International Congress of Comparative Endocrinology, pp. 715-719. , Kawashima, S., and Kikuyama, S. (eds.), Monduzzi Editore, Bologna, Tome II 
504 |a Montaner, A.D., Somoza, G.M., King, J.A., Bianchini, J.J., Bolis, C., Affanni, J.M., Chromatographic and immunological identification of GnRH (gonadotropin-releasing hormone) variants. Occurrence of mammalian and a salmon-like GnRH in the forebrain of an eutherian mammal (1998) Hydrochaeris Hydrochaeris (Mammalia, Rodentia). Regul. Pept., 73, pp. 197-204 
504 |a Muske, L.E., Ontogeny, phylogeny and neuroanatomical organization of multiple molecular forms of GnRH (1997) GnRH Neurons: Gene to Behavior, pp. 145-180. , Parhar, I. S., and Sakuma, Y. (eds.), Brain Shuppan, Tokyo 
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504 |a Parhar, I.S., GnRH in tilapia: Three genes, three origins and their roles (1997) GnRH Neurons: Gene to Behavior, pp. 197-219. , Parhar, I. S. and Sakuma, Y. (eds.), Brain Shuppan, Tokyo 
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504 |a Sherwood, N.M., The evolution of gonadotropin-releasing hormone (1997) International Symposium on the Comparative Biology of GnRH Neurons, , Tokyo, Japan (abstract) 
504 |a Sherwood, N., Zoeller, R.T., Moore, F.L., Multiple forms of gonadotropin-releasing hormone in amphibians brain (1986) Gen. Comp. Endocrinol., 61, pp. 313-322 
504 |a Somoza, G.M., Stefano, A.V., D'Eramo, J.L., Canosa, L.F., Fridman, O., Immunoreactive GnRH suggesting a third form of GnRH in addition to cIIGnRH and sGnRH in the brain and pituitary gland of Prochilodus lineatus (Characiformes) (1994) Gen. Comp. Endocrinol., 94, pp. 44-52 
504 |a Somoza, G.M., Paz, D.A., Stefano, A.V., Affanni, J.M., Identification of immunoreactive mammalian gonadotropin-releasing hormone in the brain of metamorphic larvae of Bufo arenarum Hensel (Amphibia: Anura) (1996) Int. J. Dev. Neurosci., 14, pp. 663-672 
504 |a Stefano, A.V., Canosa, L.F., D'Eramo, J.L., Fridman, O., Affanni, J.M., Somoza, G.M., GnRH molecular variants in the brain and pituitary gland of pejerrey, Odontesthes bonariensis (Atheriniformes). Immunological and chromatographic evidence for the presence of a novel molecular variant (1997) Comp. Biochem. Physiol. C, 3, pp. 335-345 
504 |a Terasawa, E., Quambeck, C., Two type of LHRH neurons in the forebrain of the rhesus monkey during embryonic development (1997) GnRH Neurons: Gene to Behavior, pp. 197-219. , Parhar, I. S., and Sakuma, Y. (eds.), Brain Shuppan, Tokyo 
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504 |a Yamamoto, N., Oka, Y., Amano, M., Aida, K., Hasegawa, Y., Kawashima, S., Multiple gonadotropin-releasing hormone (GnRH)-Immunoreactive systems in the brain of the dwarf gourami, Colisa lalia: Immunohistochemistry and radioimmunoassay (1995) J. Comp. Neurol., 355, pp. 354-368 
504 |a Yu, K.L., Sherwood, N.M., Peter, R.E., Differential distribution of two molecular forms of gonadotropin-releasing hormone in discrete brain areas of goldfish (Carassius auratus) (1988) Peptides, 9, pp. 625-630 
520 3 |a 1. In a previous paper we reported evidence for the presence of mGnRH- and sGnRH-like peptides in the preoptic-hypothalamic region of the capybara Hydrochaeris hydrochaeris (Montaner et al., 1998). In that study, the presence of a cGnRH-II like molecule in olfactory bulb extracts was suggested. 2. The capybara, the largest living rodent in the world, belongs to the order Hystricomorpha, which is considered to be one of the oldest groups of rodents. Some authors consider that this group is the ancestor of all remaining rodents. 3. In this study we have characterized GnRH molecular variants found in extracts from the olfactory bulbs and the mesencephalic region of capybara. These regions represent the two GnRH neuronal systems: the terminal nerve-septopreoptic and the midbrain systems. 4. An indirect method combining reverse-phase high-performance liquid chromatography (RP- HPLC) and radioimmunoassay (RIA) was used to characterize GnRH variants. The analysis of both extracts with two different RIA systems revealed three immunoreactive GnRH peaks, coeluting with mGnRH, cIIGnRH, and sGnRH synthetic standards. These results were additionally supported by serial dilution studies with specific antisera. 5. To our knowledge this the first report on the presence of three GnRH variants in the brain of an eutherian mammal. These results suggest that, similarly to other vertebrates, the expression of multiple GnRH variants-may also be a common pattern in mammals.  |l eng 
536 |a Detalles de la financiación: University of Cape Town 
536 |a Detalles de la financiación: National Council for Scientific Research 
536 |a Detalles de la financiación: South African Medical Research Council 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: This work was supported by grants from CONICET (National Research Council of Argentina) to INEUCI and the Medical Research Council of South Africa and the University of Cape Town to J. A. K. We are also in debt to Prof. José Osinaldi and Ing. Roque Fernández (Dirección General de Desarrollo Agrícola y Recursos Naturales, Secretaría de Estado de la Producción, Gobierno de la Provin-cia de Entre Ríos), Dr. Juan Carlos Reboreda, and Dr. Jorge Zorzópulos for helpful discussion and Juan José Piniela for his help in the care of the animals. 
593 |a Instituto de Neurociencia, Depto. de Ciencias Biológicas, Universidad de Buenos Aires (UBA), 1428 Buenos Aires, Argentina 
593 |a Ctro. Invest. Cie. y T., Matteri y España, 3105 Diamante, Entre Ríos, Argentina 
593 |a Depto. de Quim. Orgánica, Fac. de Bioquim. y Cie. Biol., Univ. Nac. Litoral, Paraje El Pozo, 3200 Santa Fe, Argentina 
593 |a Department of Chemical Pathology, Univ. of Cape Town Medical School, Groote Schuur Hospital, Observatory 7925, Cape Town, South Africa 
690 1 0 |a CAPYBARA 
690 1 0 |a GONADOTROPIN-RELEASING HORMONE 
690 1 0 |a HPLC 
690 1 0 |a MAMMALIAN 
690 1 0 |a RADIOIMMUNOASSAY 
690 1 0 |a GONADORELIN 
690 1 0 |a ANIMAL CELL 
690 1 0 |a ANIMAL TISSUE 
690 1 0 |a ARTICLE 
690 1 0 |a FEMALE 
690 1 0 |a GENETIC VARIABILITY 
690 1 0 |a HORMONE DETERMINATION 
690 1 0 |a MALE 
690 1 0 |a MESENCEPHALON 
690 1 0 |a MOLECULAR BIOLOGY 
690 1 0 |a NONHUMAN 
690 1 0 |a OLFACTORY BULB 
690 1 0 |a PRIORITY JOURNAL 
690 1 0 |a PROTEIN EXPRESSION 
690 1 0 |a PROTEIN LOCALIZATION 
690 1 0 |a REVERSED PHASE LIQUID CHROMATOGRAPHY 
690 1 0 |a RODENT 
690 1 0 |a TISSUE DISTRIBUTION 
690 1 0 |a ANIMALS 
690 1 0 |a EVOLUTION 
690 1 0 |a FEMALE 
690 1 0 |a GONADOTROPIN-RELEASING HORMONE 
690 1 0 |a MALE 
690 1 0 |a MESENCEPHALON 
690 1 0 |a OLFACTORY BULB 
690 1 0 |a RODENTIA 
690 1 0 |a ANIMALIA 
690 1 0 |a EUTHERIA 
690 1 0 |a HYDROCHAERIS HYDROCHAERIS 
690 1 0 |a HYSTRICOGNATHI 
690 1 0 |a MAMMALIA 
690 1 0 |a RODENTIA 
690 1 0 |a VERTEBRATA 
700 1 |a Affanni, J.M. 
700 1 |a King, J.A. 
700 1 |a Bianchini, J.J. 
700 1 |a Tonarelli, G. 
700 1 |a Somoza, G.M. 
773 0 |d 1999  |g v. 19  |h pp. 635-651  |k n. 5  |p Cell. Mol. Neurobiol.  |x 02724340  |t Cellular and Molecular Neurobiology 
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