Retrograde Tracing Technique for Neonatal Animals

2013 ◽  
pp. 335-341
Author(s):  
Kengo Funakoshi ◽  
Akira Yoshikawa ◽  
Yoshitoshi Atobe
Keyword(s):  
Retrograde Tracing

Neuropeptide Y System of the Female Monkey Hypothalamus: Retrograde Tracing and Immunostaining

1993 ◽  
Vol 57 (2) ◽  
pp. 289-298 ◽  
Author(s):  
Khushdev K. Thind ◽  
James E. Boggan ◽  
Paul C. Goldsmith
Keyword(s):  
Neuropeptide Y ◽  
Retrograde Tracing

Demonstration of peptidergic afferents to the bed nucleus of the stria terminalis using local injections of colchicine. A combined immunohistochemical and retrograde tracing study

1994 ◽  
Vol 34 (4) ◽  
pp. 319-337 ◽  
Author(s):  
Michel Arluison ◽  
Guy Brochier ◽  
Myriana Vankova ◽  
Vincent Leviel ◽  
Julio Villalobos ◽  
...  
Keyword(s):  
Retrograde Tracing ◽  
Stria Terminalis ◽  
Bed Nucleus ◽  
Local Injections

Retrograde tracing of zinc-enriched (ZEN) neuronal somata projecting to the olfactory bulb

2002 ◽  
Vol 956 (2) ◽  
pp. 230-235 ◽  
Author(s):  
Seung Mook Jo ◽  
Yong Kuk Kim ◽  
Zhanyou Wang ◽  
Gorm Danscher
Keyword(s):  
Olfactory Bulb ◽  
Retrograde Tracing ◽  
Neuronal Somata

Glutamate-like immunoreactivity in the cat superior colliculus and visual cortex: Further evidence that glutamate is the neurotransmitter of the corticocollicular pathway

1997 ◽  
Vol 14 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Chang-Jin Jeon ◽  
Michael K. Hartman ◽  
R. Ranney Mize
Keyword(s):  
Visual Cortex ◽  
Superior Colliculus ◽  
Optical Density ◽  
Retrograde Tracing ◽  
Biochemical Studies ◽  
Deep Layers ◽  
Dense Band ◽  
Cat Superior Colliculus ◽  
Made In ◽  
In Cells

AbstractBiochemical studies provide evidence that the pathway from visual cortex to the superior colliculus (SC) utilizes glutamate as a neurotransmitter. In the present study, we have used immunocytochemistry, visual cortex lesions, and retrograde tracing to show directly by anatomical methods that glutamate or a closely related analog is contained in corticocollicular neurons and terminals. A monoclonal antibody directed against gamma-L-glutamyl-L-glutamate (gamma glu glu) was used to localize glutamate-like immunoreactivity in both the superior colliculus (SC) and visual cortex (VC). Unilateral lesions of areas 17–18 were made in four cats to determine if gamma glu glu labeling was reduced in SC by this lesion. WGA-HRP was injected into the SC of 10 additional cats in order to determine if corticocollicular neurons were also labeled by the gamma glu glu antibody. A distinctive dense band of gamma glu glu immunoreactivity was found within the deep superficial gray and upper optic layers of SC where many corticotectal axons are known to terminate. Both fibers and cells were labeled within the band. Immunoreactivity was also found in cells and fibers throughout the deep layers of SC. Measures of total immunoreactivity (i.e. optical density) in the dense band were made in sections from the SC both ipsilateral to and contralateral to the lesions of areas 17–18. A consistent reduction in optical density was found in both the neuropil and in cells within the dense band of the SC ipsilateral to the lesion. A large percentage of all corticocollicular neurons that were retrogradely labeled by WGA-HRP also contained gamma glu glu. These results provide further evidence that the corticocollicular pathway in mammals is glutamatergic. The results also suggest that visual cortex ablation alters synthesis or storage of glutamate within postsynaptic SC neurons, presumably as a result of partial deafferentation.

scholarly journals A connectional hub in the rostral anterior cingulate cortex links areas of emotion and cognitive control

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Wei Tang ◽  
Saad Jbabdi ◽  
Ziyi Zhu ◽  
Michiel Cottaar ◽  
Giorgia Grisot ◽  
...  
Keyword(s):  
Anterior Cingulate Cortex ◽  
Diffusion Magnetic Resonance Imaging ◽  
Cingulate Cortex ◽  
Retrograde Tracing ◽  
Anterior Cingulate ◽  
Resonance Imaging ◽  
Macaque Monkeys ◽  
Afferent Inputs ◽  
Rostral Anterior Cingulate Cortex ◽  
A Site

We investigated afferent inputs from all areas in the frontal cortex (FC) to different subregions in the rostral anterior cingulate cortex (rACC). Using retrograde tracing in macaque monkeys, we quantified projection strength by counting retrogradely labeled cells in each FC area. The projection from different FC regions varied across injection sites in strength, following different spatial patterns. Importantly, a site at the rostral end of the cingulate sulcus stood out as having strong inputs from many areas in diverse FC regions. Moreover, it was at the integrative conjunction of three projection trends across sites. This site marks a connectional hub inside the rACC that integrates FC inputs across functional modalities. Tractography with monkey diffusion magnetic resonance imaging (dMRI) located a similar hub region comparable to the tracing result. Applying the same tractography method to human dMRI data, we demonstrated that a similar hub can be located in the human rACC.

scholarly journals Periaqueductal efferents to dopamine and GABA neurons of the VTA

2017 ◽  
Author(s):  
Niels R. Ntamati ◽  
Meaghan Creed ◽  
Christian Lüscher
Keyword(s):  
Functional Analysis ◽  
Ventral Tegmental Area ◽  
Periaqueductal Gray ◽  
Retrograde Tracing ◽  
The Other ◽  
Projection Neurons ◽  
Cell Type ◽  
Gaba Neurons ◽  
Other Hand ◽  
Cell Type Specific

AbstractNeurons in the periaqueductal gray (PAG) modulate threat responses and nociception. Activity in the ventral tegmental area (VTA) on the other hand can cause reinforcement and aversion. While in many situations these behaviors are related, the anatomical substrate of a crosstalk between the PAG and VTA remains poorly understood. Here we describe the anatomical and electrophysiological organization of the VTA-projecting PAG neurons. Using rabies-based, cell type-specific retrograde tracing, we observed that PAG to VTA projection neurons are evenly distributed along the rostro-caudal axis of the PAG, but concentrated in its posterior and ventrolateral segments. Optogenetic projection targeting demonstrated that the PAG-to-VTA pathway is predominantly excitatory and targets similar proportions of Ih-expressing VTA DA and GABA neurons. Taken together, these results set the framework for functional analysis of the interplay between PAG and VTA in the regulation of reward and aversion.

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