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Titolo:
Melanin-concentrating hormone-producing neurons in birds
Autore:
Cardot, J; Griffond, B; Risold, PY; Blahser, S; Fellmann, D;
Indirizzi:
Fac Med, Histol Lab, UPRESA CNRS 6025, F-25030 Besancon, France Fac Med Besancon France F-25030 RESA CNRS 6025, F-25030 Besancon, France Univ Giessen, Inst Anat Cytobiol, D-35392 Giessen, Germany Univ Giessen Giessen Germany D-35392 Cytobiol, D-35392 Giessen, Germany
Titolo Testata:
JOURNAL OF COMPARATIVE NEUROLOGY
fascicolo: 2, volume: 411, anno: 1999,
pagine: 239 - 256
SICI:
0021-9967(19990823)411:2<239:MHNIB>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
PIGEON COLUMBA-LIVIA; MELANOCYTE-STIMULATING HORMONE; MESSENGER-RIBONUCLEIC-ACID; LATERAL DORSAL HYPOTHALAMUS; ISTHMAL CELL GROUPS; ALPHA-MELANOTROPIN; SEQUENCE-ANALYSIS; RAINBOW-TROUT; BRAIN-STEM; BARN OWL;
Keywords:
comparative anatomy; neuropeptide; hypothalamus; limbic system;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
109
Recensione:
Indirizzi per estratti:
Indirizzo: Fellmann, D Fac Med, Histol Lab, UPRESA CNRS 6025, Pl St Jacques, F-25030 Besancon, France Fac Med Pl St Jacques Besancon France F-25030 esancon, France
Citazione:
J. Cardot et al., "Melanin-concentrating hormone-producing neurons in birds", J COMP NEUR, 411(2), 1999, pp. 239-256

Abstract

The peptidergic melanin-concentrating hormone (MCH) system was investigated by immunocytochemistry in several birds. MCH perikarya were found in the periventricular hypothalamic nucleus near the paraventricular organ and in the lateral hypothalamic areas. Immunoreactive fibers were very abundant inthe ventral pallidum, in the nucleus of the stria terminalis, and in the septum/diagonal band complex, where immunoreactive pericellular nets were prominent. Many fibers innervated the whole preoptic area, the lateral hypothalamic area, and the infundibular region. Some fibers also reached the dorsal thalamus and the epithalamus. The median eminence contained only sparse projections, and the posterior pituitary was not labeled. Thus, in birds, aneurohormonal role for MCH is not likely. Immunoreactive fibers were observed in other regions, such as the intercollicular nucleus, stratum griseum periventriculare (mesencephalic tectum), central gray, nigral complex (especially the ventral tegmental area), reticular areas, and raphe nuclei. Although no physiological investigation concerning the role of MCH has been performed in birds, the distribution patterns of the immunoreactive perikarya and fibers observed suggest that MCH may be involved in functions similar to those described in rats. In particular, the projections to parts of the limbic system (ventropallidal ganglia, septal complex, hypothalamus, dorsal thalamus, and epithalamus) and to structures concerned with visceral and other sensory information integration suggest that MCH acts as a neuromodulator involved in a wide variety of physiological and behavioral adaptations (arousal) with regard to feeding, drinking, and reproduction. (C) 1999 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 12:20:04