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Título
Calretinin immunoreactivity in the developing olfactory system of the rainbow trout
Autor(es)
Assunto
Anamniote
Calcium
Fish
Immunocytochemistry
Olfactory receptor cells
Clasificación UNESCO
2490 Neurociencias
2490.02 Neuroquímica
Fecha de publicación
1997-05-20
Editor
Elsevier
Citación
Porteros A, Arévalo R, Weruaga E, Crespo C, Briñón JG, Alonso JR, Aijon J. Calretinin immunoreactivity in the developing olfactory system of the rainbow trout. Brain Res Dev Brain Res. 1997 May 20;100(1):101-9
Resumen
The distribution of calretinin immunoreactivity in the developing
olfactory system of the rainbow trout was studied by using an indirect immunocytochemical method. Calretinin immunoreactivity was firstly detected at 150 day-degrees in the olfactory placode, where labeled primordial cells were observed. At 250 day-degrees, precursor cells of the
olfactory receptor neurons located in the olfactory pit were calretininimmunoreactive.
At 300 day-degrees, recognizable olfactory receptor neurons displayed calretinin immunoreactivity in the olfactory epithelium,
and calretinin-immunopositive olfactory axons reached the presumptive olfactory bulb. After hatching (400 day-degrees) and during the subsequent development and maturation of the olfactory system, the number of calretinin-immunopositive olfactory receptor cells increased and distributed homogeneously throughout the olfactory epithelium. Accordingly, new
positive olfactory fibers arrived to the olfactory bulb arborizing in olfactory
glomeruli distributed in nine different terminal fields. Six days after hatching, calretinin-immunopositive interneurons within the olfactory bulb were also observed. The size and number of calretinin immunoreactive interneurons increased from this stage to adulthood. The adult pattern
demonstrated both similarities and differences with the distribution of
calretinin immunoreactivity previously described in the olfactory system of
mammals.
URI
DOI
http://dx.doi.org/10.1016/S0165-3806(97)00037-0
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