Journal of Comparative Neurology
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Novel role of cystic fibrosis transmembrane conductance regulator in maintaining adult mouse olfactory neuronal homeostasis.
We show that Cftr mRNA in mouse OE is exclusively localized in microvillar cells and CFTR immunofluorescence is coassociated with the scaffolding protein NHERF-1 and PLCβ2 in microvilli. In CFTR-null mice, PLCβ2 was undetectable, NHERF-1 mislocalized, and IP3 R3 more intensely stained, along with in...
A comparative examination of neural circuit and brain patterning between the lamprey and amphioxus reveals the evolutionary origin of the ve...
We present the detailed development of retinofugal projections in the lamprey, the neuroarchitecture in amphioxus, and the brain patterning in both animals. Both the lateral eye in larval lamprey and the frontal eye in amphioxus project to a light-detecting visual center in the caudal prosencephalic...
Quantitative analysis of afferents expressing substance P, calcitonin gene-related peptide, isolectin B4, neurofilament 200, and Peripherin ...
We analyzed their expression in neurons in the rat trigeminal ganglion by light- and electron-microscopic immunocytochemistry. Most SP-immunopositive (+), CGRP+, and IB4+ fibers were unmyelinated, but a small fraction (∼5%) were small myelinated fibers (<20 µm(2) in cross-sectional area, equivalent...
Identification of neuropeptide receptors expressed by melanin-concentrating hormone neurons.
We investigated which neuropeptide receptors are expressed by MCH neurons by using double in situ hybridization. In all, 20 receptors, selected based on either a suspected interaction with the MCH system or demonstrated high expression levels in the LH and ZI, were tested to determine whether they a...
Feedforward and feedback connections and their relation to the cytox modules of V2 in Cebus monkeys.
We injected anterograde and retrograde cholera toxin subunit B (CTb) tracer into nine sites in area V4 in five Cebus apella monkeys. The injection site locations ranged from 2° to 10° eccentricity in the lower visual field representation of V4. Alternate cortical sections, cut tangentially to the pi...
Intense and specialized dendritic localization of the fragile X mental retardation protein in binaural brainstem neurons: a comparative stud...
We examined dendritic expression and localization of FMRP in the reptilian and avian nucleus laminaris (NL) and its mammalian analogue, the medial superior olive (MSO), in rodents and humans. NL/MSO neurons are specialized for temporal processing of low-frequency sounds for binaural hearing, which i...
Nucleus of the solitary tract in the C57BL/6J mouse: Subnuclear parcellation, chorda tympani nerve projections, and brainstem connections.
The nucleus of the solitary tract (NST) processes gustatory and related somatosensory information rostrally and general viscerosensory information caudally. To compare its connections with those of other rodents, this study in the C57BL/6J mouse provides a subnuclear cytoarchitectonic parcellation (...
Presynaptic ultrastructural plasticity along CA3→CA1 axons during long-term potentiation in mature hippocampus.
In area CA1 of the mature hippocampus, synaptogenesis occurs within 30 minutes after the induction of long-term potentiation (LTP); however, by 2 hours many small dendritic spines are lost, and those remaining have larger synapses. Little is known, however, about associated changes in presynaptic ve...
Spatiotemporal patterns of Pax3, Pax6, and Pax7 expression in the developing brain of a urodele amphibian, Pleurodeles waltl.
Our data show that the expression patterns of the three Pax genes studied are overall evolutionarily conserved, and therefore could unequivocally be used to identify subdivisions in the urodele brain similar to other vertebrates, which are not clearly discernable with classical techniques. In additi...
Molecular profiling of the developing avian telencephalon: regional timing and brain subdivision continuities.
We used quantitative brain molecular profiling to discover that distinct subdivisions in the avian pallium above and below the ventricle and the associated mesopallium lamina have similar molecular profiles, leading to a hypothesis that they may form as continuous subdivisions around the lateral ven...