Back to Search
Start Over
Localization of FMRFamide-like immunoreactivity in the brain of the viviparous skink (Chalcides chalcides).
- Source :
-
Brain, behavior and evolution [Brain Behav Evol] 2001 Jan; Vol. 57 (1), pp. 18-32. - Publication Year :
- 2001
-
Abstract
- Neuroanatomical distribution of FMRFamide-like immunoreactivity was investigated in the brain and olfactory system of the viviparous skink, Chalcides chalcides. In the adult brain FMRFamide immunoreactive (ir) perikarya were observed in the diagonal band of Broca, medial septal nucleus, accumbens nucleus, bed nucleus of the anterior commissure, periventricular hypothalamic nucleus, lateral forebrain bundle, and lateral preoptic, subcommissural, suprachiasmatic and lateral hypothalamic areas. This pattern was seen in both male and female brains. Though all major brain areas showed FMRFamide-ir innervation, the densest ir fiber network was observed in the hypothalamus. During development, ir elements were observed for the first time in embryos at mid-pregnancy. FMRFamide perikarya were located along the ventral surface of the vomeronasal nerve, in the olfactory peduncle mediobasally, as well as in the anterior olfactory nucleus and olfactory tubercle. Furthermore, some ir neurons were observed in the rhombencephalic reticular substance; however, the ir fiber network was poorly developed. Later in development FMRFamide-ir neurons appeared also in the bed nucleus of the anterior commissure as well as the rhombencephalic nucleus of solitary tract and the dorsal motor nucleus of vagus nerve. In juveniles, the distribution profile of FMRFamide immunoreactivity was substantially similar to that of the adults, with a less widespread neuronal distribution and a more developed fiber network. Ontogenetic presence of FMRFamide immunoreactivity in the nasal area has been linked to the presence of a nervus terminalis in this reptile.<br /> (Copyright 2001 S. Karger AG, Basel.)
- Subjects :
- Animals
Brain metabolism
FMRFamide metabolism
Female
Immunohistochemistry
Male
Nerve Fibers immunology
Nerve Fibers metabolism
Olfactory Pathways immunology
Olfactory Pathways metabolism
Vomeronasal Organ immunology
Vomeronasal Organ metabolism
Brain immunology
FMRFamide immunology
Reptiles anatomy & histology
Subjects
Details
- Language :
- English
- ISSN :
- 0006-8977
- Volume :
- 57
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Brain, behavior and evolution
- Publication Type :
- Academic Journal
- Accession number :
- 11359045
- Full Text :
- https://doi.org/10.1159/000047223