Identification of immunoreactive mammalian gonadotropin-releasing hormone in the brain of metamorphic larvae of Bufo arenarum hensel (Amphibia: Anura)

Gonadotropin-releasing hormone (GnRH) immunoreactivity in brain extracts of Bufo arenarum tadpoles were investigated by high-performance liquid chromatography, followed by radioimmunoassay analysis using two different antisera raised against different GnRH variants. Only one immunoreactive peak was...

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Autor principal: Somoza, G.M
Otros Autores: Paz, D.A, Stefano, A.V, Affanni, J.M
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Elsevier Ltd 1996
Acceso en línea:Registro en Scopus
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024 7 |2 cas  |a gonadorelin, 33515-09-2, 9034-40-6 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
030 |a IJDND 
100 1 |a Somoza, G.M. 
245 1 0 |a Identification of immunoreactive mammalian gonadotropin-releasing hormone in the brain of metamorphic larvae of Bufo arenarum hensel (Amphibia: Anura) 
260 |b Elsevier Ltd  |c 1996 
270 1 0 |m Somoza, G.M.; INEUCI-CONICET, Departamento de Biologia, Ciudad Universitaria, 4 Piso, Pabellon II, (1428) Buenos Aires, Argentina 
506 |2 openaire  |e Política editorial 
504 |a Branton, W.D., Jan, L.Y., Jan, Y.N., Non-mammalian luteinizing hormone-releasing factor (LRF) in tadpole and frog brain (1982) Soc. Neurosci. Abstr., 8, p. 14 
504 |a Cáceres-Dittmar, G., Tapia, F.J., Guerrero, H.Y., Paiva, C.L., Marcano, D., Gonadotropin-releasing hormone immunoreactivity in the brain of the tropical freshwater fish Pygocentrus notatus (Teleostei-Characidae) (1993) Histol. Histopathol., 8, pp. 133-138 
504 |a Cariello, L., Romano, G., Spagnuolo, A., Zanetti, L., Fasano, S., Minucei, S., Di Matteo, L., Chieffi, G., Molecular forms of immunoreactive gonadotropin releasing hormone in hypothalamus and testis of the frog Rana esculenta (1989) Gen. Comp. Endocrinol., 75, pp. 343-348 
504 |a D'Aniello, B., Masucci, M., Di Meglio, M., Ciarcia, G., Rastogi, R.K., Distribution of gonadotropin-releasing hormone-like peptides in the brain during development of juvenile male Rana esculenta (1991) Cell Tiss. Res., 265, pp. 51-55 
504 |a Hayes, W.P., Wray, S., Battey, J.F., The frog gonadotropin-releasing hormone-i (GnRH-I) gene has a mammalian-like expression pattern and conserved domains in GnRH-associated peptide, but brain onset is delayed until metamorphosis (1994) Endocrinology, 134, pp. 1835-1845 
504 |a King, J.A., Millar, R.P., Hypothalamic luteinizing-hormone releasing hormone content in relation to the seasonal reproductive cycle in Xenopus laevis (1979) Gen. Comp. Endocrinol., 39, pp. 309-312 
504 |a King, J.A., Millar, R.P., Identification of His5,Trp7,Tyr8-GnRH (chicken GnRH-II) in amphibian brain (1986) Peptides, 7, pp. 827-834 
504 |a King, J.A., Millar, R.P., Evolutionary aspects of gonadotropin-releasing hormone and its receptor (1995) Cell. Molec. Neurobiol., 15, pp. 2-23 
504 |a King, J.A., Stenveld, A., Millar, R.P., Differential regional distribution of gonadotropin-releasing hormones in amphibian (clawed toad Xenopus laevis) brain (1994) Regul. Pept., 50, pp. 277-289 
504 |a Licht, P., Pei-San, T., Stokowska-Brochocka, J., The nature and distribution of gonadotropin releasing hormones in brains and plasma of ranid frogs (1994) Gen. Comp. Endocrinol., 94, pp. 186-198 
504 |a Martin, M.C., Nuñez, A.M., Tomatis, M.E., Metamorfosis en anfibios. I. Desarrollo metamórfico en larvas de Bufo arenarum Hensel (Amphibia: Anura) (1985) Hist. Nat., 5, pp. 289-302 
504 |a Miranda, L.A., Paz, D.A., Dezi, R.E., Pisanó, A., Immunocytochemical and morphometric study of TSH, PRL, GH and ACTH cells in Bufo arenarum larvae with inhibited thyroid function (1995) Gen. Comp. Endocrinol., 98, pp. 166-176 
504 |a Murakami, S., Kikuyama, S., Arai, Y., The origin of the luteinizing hormone-releasing hormone (LHRH) neurons in newts ( Cynops pyrrhogaster): The effect of olfactory placode ablation (1992) Cell Tiss. Res., 269, pp. 21-27 
504 |a Muske, L.E., Moore, F.L., Ontogeny of immunoreactive gonadotropin-releasing hormone neuronal systems in amphibians (1990) Brain Res., 534, pp. 177-187 
504 |a Norgren, R.B., Brackenbury, R., Cell adhesion molecules and the migration of lhrh neurons during development (1993) Devl Biol., 160, pp. 377-387 
504 |a Northcutt, R.G., Muske, L.E., Multiple embryonic origins of gonadotropin-releasing hormone (GnRH) immunoreactive neurons (1994) Devl Brain Res., 78, pp. 279-290 
504 |a Powell, J.F.F., Zohar, Y., Elizur, A., Fischer, W.H., Craig, A.G., Rivier, J.E., Lovejoy, D.A., Sherwood, N.M., Three forms of gonadotropin-releasing hormone characterized from brains of one species (1994) Proc. Natn. Acad. Sci. U.S.A., 91, pp. 12081-12805 
504 |a Schwanzel-Fukuda, M., Pfaff, D.W., Origin of luteinizing hormone-releasing hormone neurons (1989) Nature, 338, pp. 161-164 
504 |a Schwanzel-Fukuda, M., Jorgenson, K.L., Bergen, H.T., Weesner, G.D., Pfaff, D.W., Biology of normal luteinizing hormone-releasing hormone neurons during and after their migration from olfactory placode (1992) Endocrinol. Rev., 13, pp. 623-634 
504 |a Sherwood, N.M., Zoeller, R.T., Moore, F.L., Multiple forms of gonadotropin releasing hormone in amphibian brains (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 Sullivan, K.A., Silverman, A.J., The ontogeny of gonadotropin-releasing hormone neurons in the chick (1993) Neuroendocrinology, 58, pp. 597-608 
504 |a Yu, K.L., Nahorniak, C.S., Peter, R.E., Corrigan, A., Rivier, J.E., Vale, W.W., Brain distribution of radioimmunoassayable gonadotropin-releasing hormone in female goldfish: Seasonal variation and periovulatory changes (1987) Gen. Comp. Endocrinol., 67, pp. 234-246 
504 |a Yu, K., Sherwood, N., Peter, R.E., Differential distribution of two molecular forms of gonadotropin-releasing hormone in discrete brain areas of goldfish ( Carassius auratus) (1989) Pepudes, 9, pp. 625-630 
520 3 |a Gonadotropin-releasing hormone (GnRH) immunoreactivity in brain extracts of Bufo arenarum tadpoles were investigated by high-performance liquid chromatography, followed by radioimmunoassay analysis using two different antisera raised against different GnRH variants. Only one immunoreactive peak was identified, eluting in the same position as synthetic mammalian GnRH. This result was further confirmed by serial dilution studies using more specific mammalian GnRH antisera. Our results suggest that mammalian GnRH is most likely an endogenous peptide in the brain of the developing larvae and froglets of Bufo arenarum and quite likely it is the only GnRH variant present during those development stages. The distribution and density of cell bodies and fibers were analysed by immunocytochemical procedures. Immunoreactive cell bodies appeared in the olfactory epithelium and across the olfactory nerve at late prometamorphic larval stages. Near the metamorphic climax and in froglets, perikarya and fibers were detected in basal forebrain, preoptic and hypothalamic areas. No immunoreaction was observed at midbrain, hindbrain and spinal cord levels. This study suggests that mammalian GnRH is most likely an endogenous peptide and is probably the only GnRH variant in the brain of the developing larvae and froglets of Bufo arenarum.  |l eng 
593 |a Institut de Neurociencia, INEUCI-CONICET, Ciudad Universitaria, (1428) Buenos Aires, Argentina 
593 |a Lab. de Invest. Embriologicas, LABINE-CONICET, Montevideo 126, (1019) Buenos Aires, Argentina 
690 1 0 |a GMRH 
690 1 0 |a MIGRATION 
690 1 0 |a NERVOUS TERMINALIS 
690 1 0 |a OLFACTORY PLACODE 
690 1 0 |a TADPOLES 
690 1 0 |a GONADORELIN 
690 1 0 |a PEPTIDE 
690 1 0 |a ANIMAL TISSUE 
690 1 0 |a ARTICLE 
690 1 0 |a BRAIN DEVELOPMENT 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a DILUTION 
690 1 0 |a FOREBRAIN 
690 1 0 |a HIGH PERFORMANCE LIQUID CHROMATOGRAPHY 
690 1 0 |a HYPOTHALAMUS 
690 1 0 |a IMMUNOCYTOCHEMISTRY 
690 1 0 |a IMMUNOREACTIVITY 
690 1 0 |a LARVA 
690 1 0 |a MESENCEPHALON 
690 1 0 |a METAMORPHOSIS 
690 1 0 |a NERVE FIBER 
690 1 0 |a NEWBORN 
690 1 0 |a NONHUMAN 
690 1 0 |a OLFACTORY EPITHELIUM 
690 1 0 |a OLFACTORY NERVE 
690 1 0 |a PERIKARYON 
690 1 0 |a PREOPTIC AREA 
690 1 0 |a PRIORITY JOURNAL 
690 1 0 |a RADIOIMMUNOASSAY 
690 1 0 |a RHOMBENCEPHALON 
690 1 0 |a SPINAL CORD 
690 1 0 |a TOAD 
690 1 0 |a AMPHIBIA 
690 1 0 |a ANIMALIA 
690 1 0 |a ANURA 
690 1 0 |a BUFO ARENARUM 
690 1 0 |a MAMMALIA 
690 1 0 |a TERMINALIS 
700 1 |a Paz, D.A. 
700 1 |a Stefano, A.V. 
700 1 |a Affanni, J.M. 
773 0 |d Elsevier Ltd, 1996  |g v. 14  |h pp. 663-672  |k n. 5  |p INT. J. DEV. NEUROSCI.  |x 07365748  |w (AR-BaUEN)CENRE-5232  |t International Journal of Developmental Neuroscience 
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