Table 3.
Brain region1 | Abbrev.2 | ARA Level3 | Number of neurons4 |
||
---|---|---|---|---|---|
TH-ir | EGFPVgat + TH-ir5 | Coloc.6 (%) | |||
Periventricular zone | |||||
Supraoptic nucleus | SO | 56–63 | 07 | 0 | |
Accessory supraoptic group | ASO | n/a8 | n/a | ||
Paraventricular hypothalamic nucleus | |||||
Magnocellular division | |||||
Anterior magnocellular part | PVHam | n/a | n/a | ||
Medial magnocellular part | PVHmm | 60–65 | 2 ± 1 | 1 ± 1 | |
Posterior magnocellular part | |||||
Lateral zone | PVHpml | 60–65 | 0 | 0 | |
Medial zone | PVHpmm | 63 | 0 | 0 | |
Parvicellular division | |||||
Anterior parvicellular part | PVHap | 56–59 | 37 ± 5 | 33 ± 6 | 90 |
Dorsal zone | PVHmpd | 60–66 | 5 ± 2 | 3 ± 2 | 63 |
Periventricular part | PVHpv | 56–65 | 3 ± 2 | 2 ± 1 | 60 |
Periventricular hypothalamic nucleus | |||||
Anterior part | PVa | 59–61 | 8 ± 4 | 6 ± 4 | 90 |
Intermediate part | PVi9 | 62–64 | 7 ± 1 | 6 ± 1 | 91 |
65–67 | 27 ± 4 | 23 ± 3 | 87 | ||
68–74 | 4 ± 2 | 3 ± 1 | 84 | ||
Arcuate hypothalamic nucleus | ARH9 | 65–67 | 5 ± 3 | 4 ± 3 | 73 |
68–71 | 85 ± 18 | 74 ± 16 | 87 | ||
72–74 | 27 ± 9 | 23 ± 9 | 88 | ||
Periventricular region | |||||
Anteroventral preoptic nucleus | ADP | 51–53 | 0 | 0 | |
Anterior hypothalamic area | AHA | n/a | n/a | ||
Anteroventral preoptic nucleus | AVP | 50–54 | 1 ± 1 | 1 ± 1 | |
Anteroventral periventricular nucleus | AVPV | 51–53 | 5 ± 4 | 1 ± 0 | 13 |
Dorsomedial nucleus of the hypothalamus | |||||
Anterior part | DMHa9 | 67–69 | 29 ± 8 | 27 ± 8 | 92 |
70–74 | 5 ± 3 | 4 ± 2 | 93 | ||
Posterior part | DMHp | 70–74 | 11 ± 3 | 9 ± 3 | 81 |
Ventral part | DMHv | 71–74 | 10 ± 2 | 9 ± 2 | 87 |
Median preoptic nucleus | MEPO | n/a | n/a | ||
Medial preoptic area | MPO9 | 50–55 | 9 ± 5 | 9 ± 4 | 98 |
56–58 | 4 ± 3 | 3 ± 2 | 73 | ||
Vascular organ of the lamina terminalis | OV | n/a | n/a | ||
Posterodorsal preoptic nucleus | PD | 0 | 0 | ||
Parastrial nucleus | PS | 0 | 0 | ||
Suprachiasmatic preoptic nucleus | PSCH | n/a | n/a | ||
Periventricular hypothalamic nucleus | |||||
Posterior part | PVp | 75–79 | 8 ± 2 | 5 ± 2 | 72 |
Preoptic part | PVpo | 54–66 | 54 ± 4 | 50 ± 5 | 93 |
Subparaventricular zone | SBPV | 60–63 | 32 ± 1 | 30 ± 0 | 93 |
Subfornical organ | SFO | n/a | n/a | ||
Ventrolateral preoptic nucleus | VLPO | 53–55 | 0 | 0 | |
Hypothalamic medial zone | |||||
Anterior hypothalamic nucleus | |||||
Anterior part | AHNa | 58–64 | 0 | 0 | |
Central part | AHNc | 59–64 | 1 ± 1 | 1 ± 0 | |
Dorsal part | AHNd | n/a | n/a | ||
Posterior part | AHNp | 63–66 | 6 ± 1 | 6 ± 1 | 88 |
Mammillary body | |||||
Lateral mammillary nucleus | LM | 78–81 | 0 | 0 | |
Medial mammillary nucleus | MM | 79–82 | 0 | 0 | |
Supramammillary nucleus | |||||
Lateral part | SUMl | 78–82 | 4 ± 2 | 0 | 0 |
Medial part | SUMm | 78–82 | 6 ± 6 | 0 | 0 |
Tuberomammillary nucleus | |||||
Dorsal part | TMd | 75–77 | 0 | 0 | |
Ventral part | TMv | 77–79 | 0 | 0 | |
Medial preoptic nucleus | |||||
Central part | MPNc | 53–55 | 0 | 0 | |
Lateral part | MPNl | 54–58 | 1 ± 0 | 1 ± 0 | |
Medial part | MPNm | 54–58 | 3 ± 1 | 1 ± 0 | 57 |
Dorsal premammillary nucleus | PMd | ||||
Ventral premammillary nucleus | PMv | ||||
Paraventricular hypothalamic nucleus, descending | |||||
Dorsal parvicellular part | PVHdp | 60–65 | 0 | 0 | |
Forniceal part | PVHf | n/a | n/a | ||
Lateral parvicellular part | PVHlp | 66 | 4 ± 2 | 4 ± 2 | 95 |
Medial parvicellular part, ventral | PVHmpv | 64–65 | 0 | 0 | |
Ventromedial hypothalamic nucleus | |||||
Anterior part | VMHa | 65–66 | 0 | 0 | |
Central part | VMHc | 67–73 | 1 ± 1 | 1 ± 1 | |
Dorsomedial part | VMHdm | 67–71 | 0 | 0 | |
Ventrolateral part | VMHvl | 66–73 | 0 | 0 | |
Hypothalamic lateral zone | |||||
Lateral hypothalamic area | LHA | 59–79 | 15 ± 11 | 6 ± 5 | 37 |
Lateral preoptic area | LPO | 50–59 | 1 ± 1 | 1 ± 1 | |
Posterior hypothalamic nucleus | PH | 70–82 | 8 ± 4 | 1 ± 0 | 12 |
Preparasubthalamic nucleus | PST | n/a | n/a | ||
Parasubthalamic nucleus | PSTN | 75–78 | 8 ± 5 | 2 ± 1 | 18 |
Retrochiasmatic area | RCH | n/a | n/a | ||
Subthalamic nucleus | STN | 75–78 | 8 ± 4 | 2 ± 2 | 30 |
Tuberal nucleus | TU ZI9 | 65–75 | 8 ± 4 | 3 ± 1 | 43 |
Zona incerta | 61–66 | 0 | 0 | ||
67–69 | 86 ± 19 | 86 ± 18 | 100 | ||
70–83 | 4 ± 1 | 2 ± 1 | 57 | ||
Dopaminergic group | ZIda | 67–69 | 10 ± 5 | 10 ± 5 | 100 |
Fields of Forel | FF | 78–79 | 1 ± 1 | 0 |
Organization of brain regions based on hierarchical structure presented by the Allen Reference Atlas (ARA; Allen Institute for Brain Science, 2011).
Nomenclature and atlas level based on the ARA (Dong, 2008).
Each brain region may span several atlas levels.
The total number of tyrosine hydroxylase-immunoreactive (TH-ir) neurons counted bilaterally from parcellated brain regions. Data are reported as mean ± SEM (n = 3 mice), rounded to nearest whole number. Number of neurons reported is corrected for oversampling using the Abercrombie formula P = A(M/(L+M)) (Abercrombie, 1946), where P is the corrected number of neurons counted, A is the original number of neurons counted, M is the mean tissue thickness (20 μm), L is the mean cell diameter (in μm). The cell diameter may vary between each parcellated hypothalamic region, thus a distinct Abercrombie correction factor is applied for each respective region.
Quantification of TH-ir neurons that coexpress native EGFP fluorescence (EGFPVgat) in TH-ir neurons.
Percentage of TH-ir neurons that colocalized (Coloc.) with EGFP-f indicate the proportion of GABAergic TH neurons. No value will be provided if the mean of two or less than two TH-ir neurons was counted.
Parcellated brain regions that did not contain a TH-ir neuron.
Data are not available (n/a) from brain regions that either did not emerge following Nissl-based parcellations or were not parcellated in the ARA.
Distribution of TH-ir neuron within this region revealed noticeable breakpoints or clustering within ARA levels.