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Synaptic immunolocalization of glyoxylate‐complex molecules in the striate areas of the rat cerebral cortex: Light and electron microscopic studies
Author(s) -
MartínezRodríguez R.,
Alonso M.J.,
De Miguel E.,
Gómez de Segura I.,
GómezAguado F.,
Picazo A.,
Corcuera M.T.,
Alvarez M.I.,
Toledano A.
Publication year - 1998
Publication title -
journal of neuroscience research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.72
H-Index - 160
eISSN - 1097-4547
pISSN - 0360-4012
DOI - 10.1002/(sici)1097-4547(19980115)51:2<268::aid-jnr15>3.0.co;2-4
Subject(s) - synaptic vesicle , immunostaining , cerebral cortex , postsynaptic potential , electron microscope , immunolabeling , neuroscience , chemistry , glyoxylate cycle , biophysics , synaptic membrane , biology , membrane , vesicle , immunohistochemistry , biochemistry , receptor , enzyme , physics , optics , immunology
The location of glyoxylate‐complex molecules has been investigated in several areas of the rat cerebral cortex using the immunohistochemical peroxidase‐antiperoxidase (PAP) method. Antibodies against glyoxylate‐complex molecules have been developed in the rabbit after immunization with a glyoxylate‐bovine serum albumin conjugate. Observations carried out with the light microscope demonstrated positive immunostaining at the membrane level of scattered neurons located in all cortical areas, mainly in cortical layer IV. The striate areas (17, 18, 18a) had both the greatest number of immunopositive neurons and the most intense ones. At the electron microscopic level, it was observed that in the striate areas an immunopositive reaction was located mainly in the periphery of synaptic vesicles of some nerve endings, and in both pre‐ and postsynaptic membranes of these synaptic structures. The presence of glyoxylic acid and glyoxylate‐complex molecules in such areas leads us to suggest that these substances could play an important role in selected synaptic contacts in which some pyramidal and non‐pyramidal neurons are involved. J. Neurosci. Res. 51:268–274, 1998. © 1998 Wiley‐Liss, Inc.