Abstract:
:The hippocampal formation plays a critical role in episodic memory formation and spatial navigation. Within the hippocampus, the subiculum is considered to be a hub connecting the hippocampal formation to the remainder of the brain. There are functional differences between the dorsal and ventral part of subiculum, while the ventral subiculum (vSub) plays a role in anxiety, stress and emotion. In the present study, we examined the projection of the ventral subiculum to the whole brain in mice by using a modified herpes simplex virus 1 strain H129 with an inserted fluorescent protein gene. In our experiments, the modified H129 transits the primary-order, second-order, and third-order neuronal projections at 36-44, 52-60 and 68-76h after inoculation in mice, respectively. Our data revealed that vSub directly projects to the medial entorhinal cortex, amygdalohippocampal area, anterodorsal thalamic nucleus, medial hypothalamus, supramammillary nucleus, medial septal nucleus and adjacent diagonal band, the connections between median raphe nucleus and interpeduncular nucleus in brain stem, while ventral prefrontal cortex, laterodorsal tegmental nucleus and locus coeruleus receives second-order projections from vSub. Our data would help further understanding the functional connections of vSub with other brain regions.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Tang H,Wu GS,Xie J,He X,Deng K,Wang H,Xu F,Luo HRdoi
10.1016/j.neulet.2016.07.014subject
Has Abstractpub_date
2016-08-26 00:00:00pages
171-179eissn
0304-3940issn
1872-7972pii
S0304-3940(16)30500-6journal_volume
629pub_type
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