Table 1.
Comparative distribution and density of retrogradely labeled neurons following CTb injection into the PMV of male and female rats.
| Brain areas | Male | Female |
|---|---|---|
| Forebrain | ||
| Cerebral cortex | ||
| Prelimbic cortex | ++ | + |
| Infralimbic cortex | ++ | + |
| Insular agranular cortex | +/− | +/− |
| Anterior ventral cingulate cortex | +/− | +/− |
| Olfactory cortex | ||
| Dorsal tenia tecta | ++ | ++ |
| Amigdalopiriform transition | +/− | + |
| Entorhinal lateral area | − | +/− |
| Septum | ||
| Lateral subdivision | +++ | +++ |
| Ventral subdivision | +++ | +++ |
| Intermediate subdivision | + | + |
| Bed nuclei of the stria terminalis | ||
| Anterodorsal subdivision | ++ | ++ |
| Dorsomedial subdivision | + | + |
| Principal subdivision | ++++ | ++++ |
| Interfascicular subdivision | ++ | ++ |
| Ventral subdivision | +/− | +/− |
| Bed nucleus of the accessory olfactory tract | ++ | ++ |
| Amygdala | ||
| Medal nucleus | ||
| Anterodorsal subdivision | ++ | ++ |
| Anteroventral subdivision | +/− | +/− |
| Posterodorsal subdivision | +++ | ++++ |
| Posteroventral subdivision | ++ | +++ |
| Cortical nucleus | ||
| Anterior subdivision | + | + |
| Posterolateral subdivision | + | + |
| Posteromedial subdivision | + | + |
| Basomedial nucleus | ||
| Anterior subdivision | + | + |
| Posterior subdivision | +/− | +/− |
| Posterior nucleus (amigdalohippocampal area) | +++ | ++++ |
| Amygdalopiriform transition | + | + |
| Hippocampus, ventral subiculum | +++ | ++++ |
| Thalamus | ||
| Paraventricular nucleus | − | +/− |
| Paratenial nucleus | +/− | +/− |
| Subparafascicular parvicellular nucleus | +/− | +/− |
| Hypothalamus | ||
| Anteroventral periventricular nucleus | +/− | + |
| Median preoptic nucleus | +/− | +/− |
| Paraventricular nucleus, periventricular subdivision | + | + |
| Paraventricular nucleus, anterior parvicellular subdivision | +/− | +/− |
| Paraventricular nucleus, medial parvicellular subdivision | +/− | +/− |
| Retrochiasmatic area | +/− | +/− |
| Arcuate nucleus | ++ | ++ |
| Anterodorsal preoptic nucleus | + | + |
| Anteroventral preoptic nucleus | + | + |
| Medial preoptic nucleus, lateral subdivision | ++ | ++ |
| Medial preoptic nucleus, central subdivision | +++ | ++++ |
| Medial preoptic nucleus, medial subdivision | +++ | +++ |
| Anterior nucleus | ++ | ++ |
| Ventromedial nucleus, dorsomedial subdivision | +/− | +/− |
| Ventromedial nucleus, central subdivision | + | + |
| Ventromedial nucleus, ventrolateral subdivision | ++ | +++ |
| Dorsomedial nucleus, anterior subdivision | + | + |
| Dorsomedial nucleus, ventral subdivision | + | ++ |
| Tuberal nucleus, intermediate part | + | + |
| Posterior nucleus | +/− | +/− |
| Supramammillar nucleus | +/− | +/− |
| Lateral preoptic area | +/− | +/− |
| Perifornical nucleus | + | + |
| Lateral hypothalamic area, anteroventral zone | +/− | +/− |
| Lateral hypothalamic area, justaventromedial region | +/− | +/− |
| Lateral hypothalamic area, ventromedial zone | +/− | +/− |
| Brainstem | ||
| Periaqueductal gray, ventrolateral column | +/− | +/− |
| Laterodorsal tegmental nucleus | +/− | +/− |
| Ventral tegmental area | +/− | +/− |
| Locus coeruleus | − | +/− |
| Dorsal nucleus of the raphe | +/− | +/− |
| Parabrachial lateral nucleus, central division | +/− | +/− |
| Parabrachial lateral nucleus, external division | +/− | +/− |
| Parabrachial lateral nucleus, superior division | +/− | +/− |
| Nucleus incertus | − | +/− |
Ratings reflect a qualitative evaluation of the density of retrogradely labeled cells. (−) lack of CTb-ir neurons, (+/−) very low, (+) low, (++) moderate, (+++) high, (++++) very high density of retrogradely labeled neurons.