Ascending and descending components of the medial forebrain bundle in the rat as demonstrated by the horseradish peroxidase-blue reaction |
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Authors: | Dr S Shiosaka M Tohyama H Takagi Y Takahashi Y Saitoh T Sakumoto H Nakagawa N Shimizu |
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Institution: | (1) Division of Protein Metabolism, Institute for Protein Research, Osaka University, Osaka, Japan;(2) Department of Anatomy, Fujita-Gakuen University, School of Medicine, Aichi, Japan;(3) Department of Neuroanatomy, Institute of Higher Nervous Activity, Osaka University Medical School, 3-57 Nakanoshima 4-chome, Kita-ku, 530 Osaka, Japan |
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Abstract: | Summary The ascending and descending components of the medial forebrain bundle (MFB) were investigated by means of horseradish peroxidase (HRP) with a sensitive substrate. The HRP was injected iontophoretically into the MFB at various levels from the anterior commissure to the posterior hypothalamus. In order to prevent the diffusion of HRP to other brain areas, a double micropipette system was used. The descending components of the MFB are derived from (1) the anterior cingulate area, infra- or prelimbic area, and sulcal cortex, (2) the lateral septal nucleus and diagonal band, (3) the bed nucleus of the stria terminalis, (4) the paraventricular nucleus (5) the substantia innominata, (6) the amygdaloid complex (AM), (7) the ventromedial (VM) and dorsomedial (DM) hypothalamic nuclei, (8) the entopeduncular nucleus and (9) nucleus periventricularis stellatocellularis. The ascending components of the MFB originate in: (1) the medial preoptic nucleus, (2) the nucleus periventricularis stellatocellularis and rotundocellularis, (3) the posterior hypothalamic nucleus, (4) the parafascicular nucleus, (5) the ventral premammillary nucleus, (6) the substantia grisea periventricularis, (7) the lateral habenular nucleus, (8) the VM and DM, (9) the paratenial nucleus, (10) the AM and (11) the arcuate nucleus.Abbreviations used in Figures and Tables a
nucleus accumbens
- abl
nucleus amygdaloideus basalis, pars lateralis
- abm
nucleus amygdaloideus basalis, pars medialis
- ac
nucleus amygdaloideus centralis
- AC
anterior cingulate area
- al
nucleus amygdaloideus lateralis
- am
nucleus amygdaloideus medialis
- ar
nucleus arcuatus
- CC
tractus corporis callosi
- CSDV
commissura supraoptica dorsalis, pars ventralis
- DB
diagonal band
- DM
nucleus dorsomedialis hypothalami
- EP
nucleus entopeduncularis
- ha
nucleus anterior hypothalami
- hl
nucleus lateralis hypothalami
- hp
nucleus posterior hypothalami
- IL
infralimbic area of frontal cortex
- lh
nucleus habenulae lateralis
- LH1
medial forebrain bundle (MFB) at the level of commissura anterior
- LH2
lateral preoptic area
- LH3
MFB at the level of the nucleus anterior hypothalami
- LH4
MFB at the level of the nucleus ventromedialis hypothalami
- LH5
MFB at the level of the nucleus posterior hypothalami
- MFB
medial forebrain bundle
- pf
nucleus parafascicularis
- PL
prelimbic area of frontal cortex
- pol
nucleus preopticus lateralis
- pom
nucleus preopticus medialis
- posc
nucleus preopticus, pars suprachiasmatica
- pt
nucleus parataenialis
- pv
nucleus premamillaris ventralis
- PV
nucleus paraventricularis
- pvs
nucleus periventricularis stellatocellularis
- pvr
nucleus periventricularis rotundocellularis
- SC
sulcal cortex
- SGPV
substantia grisea periventricularis
- SI
substantia innominata
- SL
lateral septal nucleus
- ST
bed nucleus of stria terminalis
- sum
nucleus supramamillaris
- TO
tractus opticus
- tmm
nucleus medialis thalami, pars medialis
- VM
nucleus ventromedialis hypothalami
The nomenclature used in this paper is according to König and Klippel's Stereotaxic Atlas (1967). |
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Keywords: | Medial forebrain bundle Ascending components Descending components HRP Sensitive substrate |
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