Journal of Comparative Neurology
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The cross-modal aspect of mouse visual cortex plasticity induced by monocular enucleation is age dependent.
We specifically investigated the age dependence of the onset and the exact timing of both ME-induced reactivation processes by comparing cortical activity patterns of mice enucleated at postnatal day (P) 45, 90, or 120. A swifter open-eye potentiated reactivation characterized the binocular visual c...
Postnatal developmental expression of regulator of G protein signaling 14 (RGS14) in the mouse brain.
We have shown that RGS14 is a natural suppressor of CA2 synaptic plasticity and hippocampal-dependent learning and memory. However, the protein distribution and spatiotemporal expression patterns of RGS14 in mouse brain during postnatal development are unknown. Here, using a newly characterized mono...
Mechanisms of postecdysis-associated programmed cell death of peptidergic neurons in Drosophila melanogaster.
We undertook comprehensive genetic and transgenic analyses to dissect the PCD mechanisms of bursCCAP neurons. Expression of a versatile caspase inhibitor, p35, blocked PCD of bursCCAP neurons, suggesting caspase-dependent apoptosis. Further genetic analyses showed that Dronc/Dark and Drice are key c...
Conditional viral tracing reveals that steroidogenic factor 1-positive neurons of the dorsomedial subdivision of the ventromedial hypothalam...
We identified downstream neural targets of the VMHdm by injecting an adenoviral vector encoding Cre recombinase (Cre)-regulated farnesylated green fluorescent protein (GFPf ) into the VMHdm of mice that express Cre in neurons expressing the VMH-specific transcription factor steroidogenic factor 1 (S...
Molecular cloning and characterization of chicken neuronal intermediate filament protein α-internexin.
We describe the molecular cloning of the mRNA sequence encoding the chicken α-internexin (chkINA) protein from embryonic brains. The gene structure and predicted amino acid sequence of chkINA exhibited high similarity to those of its zebrafish, mouse, rat, bovine, and human homologs. Data from trans...
Concentric zones for pheromone components in the mushroom body calyx of the moth brain.
We first compared the distribution of the presynaptic boutons of antennal lobe projection neurons (PNs), which transfer odor information from the antennal lobe to the MB calyx. The axons of PNs that innervate pheromonal glomeruli were confined to a relatively small area within the calyx. In contrast...
Activity and coexpression of Drosophila black with ebony in fly optic lobes reveals putative cooperative tasks in vision that evade electror...
We excluded a presynaptic histamine uptake pathway and confirmed histamine recycling via carcinine formation in glia. β-Alanine supply for this pathway is independent of enzymatic synthesis by Black and β-alanine synthase Pyd3. Two versions of Black are expressed in vivo. Black is a specific aspar...
Strain differences in illumination-dependent structural changes at mouse photoreceptor ribbon synapses.
We compared structural properties of synaptic ribbons under various illumination conditions between three mouse strains: the pigmented C57BL/6 and the two albino strains Balb/c and B6(Cg)-Tyr(c-2J) /J (coisogenic to C57BL/6). In addition, electroretinograms (ERGs) recorded in the same groups were co...
Selective distribution of GABA(A) receptor subtypes in mouse spinal dorsal horn neurons and primary afferents.
We characterized the subcellular distribution of GABA(A)R subtypes in nociceptive circuits by using immunohistochemistry with subunit-specific antibodies combined with markers of primary afferents and dorsal horn neurons. Confocal laser scanning microscopy analysis revealed a distinct, partially ove...
Evolution of the basal ganglia: dual-output pathways conserved throughout vertebrate phylogeny.
We sought to determine whether these additional components of the mammalian basal ganglia are also present in one of the phylogenetically oldest vertebrates, the lamprey. We show, by using immunohistochemistry, tract tracing, and whole-cell recordings, that homologs of the SNr and PPN are present in...