Distribution and morphology of putative catecholaminergic and serotonergic neurons in the medulla oblongata of a sub-adult giraffe, Giraffa camelopardalis

Distribution and morphology of putative catecholaminergic and serotonergic neurons in the brain of the greater canerat, Thryonomys swinderianus

“…Thus, it is possible to prudently conclude, that for the order Rodentia, varying phenotype, varying life history, time since divergence, and brain size do not lead to changes in the nuclear complexity of the catecholaminergic or serotonergic systems. A similar conclusion may be reached for other mammalian orders such as monotremes, ungulates, carnivores and primates (Badlangana et al, 2007;. While further testing of this conclusion is warranted, especially in terms of extremely large and small brains of rodent species, there appears to be an understanding of the evolution of these systems in mammals developing.…”

Nuclear organization and morphology of serotonergic neurons in the brain of the Nile crocodile, Crocodylus niloticus

“…Changes in the complement of homologous nuclei may occur only at the genesis of a new mammalian order, and are otherwise constrained in their capacity to parcellate. This proposal is supported by studies in the monotremes (Manger et al, 2002a,b,c), dolphin (Manger et al, 2003(Manger et al, , 2004, rodents (Da Silva et al, 2006;Moon et al, 2007), microbat , megabat and giraffe (Badlangana et al, 2007).…”

Nuclear organization and morphology of cholinergic, putative catecholaminergic and serotonergic neurons in the brain of the Cape porcupine (Hystrix africaeaustralis): Increased brain size does not lead to increased organizational complexity

“…The putative catecholaminergic nuclei of the medulla of the Cape porcupine were comprised of the A1, A2, C1, C2, C3 and AP nuclei. A1, A2, C1, C2 and AP have been found in all mammals studied to date Badlangana et al, 2007); however, the C3 nucleus has only been reported in rodent species, making it a rodent specific nucleus (e.g. Hö kfelt et al, 1984;Vincent, 1988;Kitahama et al, 1994;Smeets and Gonzá lez, 2000;Moon et al, 2007;Dwarika et al, 2008;Bhagwandin et al, 2008).…”