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. Author manuscript; available in PMC: 2021 Dec 30.
Published in final edited form as: J Comp Neurol. 2016 Feb 18;524(10):2036–2058. doi: 10.1002/cne.23930

Figure 14.

Figure 14.

Low (main image) and high (inset) magnification photomicrographs in the region of the main magnocellular orexinergic cluster (Mc) in the hypothalamus of the river hippopotamus. A: Neurons immunoreactive for orexin-A in the main cluster of the hypothalamus. B: Parvalbumin immunoreactivity. Note the absence of parvalbumin-immunoreactive structures in this hypothalamic region. C: Calbindin immunoreactivity. Note the moderate density of cells and terminals in this region of the hypothalamus. D: Calretinin immunoreactivity. Note the moderate density of cells and terminals in this region of the hypothalamus. In all images medial is to the left and dorsal to the top. Scale bar = 500 μm in D (applies to A–D); = 100 μm in inset to D (applies to all insets).