Adult neurogenesis in the telencephalon of a lizard: a [3H]thymidine autoradiographic and bromodeoxyuridine immunocytochemical study

Cellular Organization of the Subventricular Zone in the Adult Human Brain: A Niche of Neural Stem Cells

“…A decade after, these findings were confirmed by other group using electron microscopy analyses (Kaplan and Hinds, 1977). Later, further studies described ongoing neurogenesis in female canaries (Goldman and Nottebohm, 1983), lizards (Pérez-Cañellas and García-Verdugo, 1996) and the adult mammalian brain (McDermott and Lantos, 1990;McDermott and Lantos, 1991;Lois and Alvarez-Buylla, 1993;Kornack and Rakic, 1995;Huang et al, 1998;Garcia-Verdugo et al, 2002). This process is mainly confined to the subventricular zone (SVZ) of the forebrain and the subgranular zone (SGZ) of the dentate gyrus in the hippocampus (Reznikov, 1991;Luskin, 1993;Lois and Alvarez-Buylla, 1994).…”

Neurogenic and Neuroendocrine Effects of Goldfish Pheromones

“…In mammals, only microneurons are produced postnatally (Altman and Das, 1965). Many new neurons born in the brain of reptiles and birds are large and some are projecting neurons (Nottebohm, 1985(Nottebohm, , 1989Ló pez-García et al, 1988;Pérez-Cañellas and García-Verdugo, 1996;Pérez-Cañellas et al, 1997). We also found neurogenesis in many brainstem motor nuclei containing large neurons in goldfish.…”

“…In contrast, adult neurogenesis is observed in the olfactory bulb, dorsal telencephalon, optic tectum, cerebellum, and the brainstem in fish (Zupanc, 2006). Neurons born in adulthood have been reported in all the major subdivisions of the lacertilian telencephalon, including the olfactory bulbs (main and accessory), all of the four cortical areas (medial cortex, dorsomedial cortex, dorsal cortex, and lateral cortex), septum, anterior dorsal ventricular ridge, striatum, and nucleus sphericus (Ló pez-García et al, 1988;Pérez-Cañellas and García-Verdugo, 1996;Font et al, 1997;Pérez-Cañellas et al, 1997). The cerebellum may also be a site of adult neurogenesis in some reptiles (Ló pez-García et al, 1990).…”

Characterization of adult neurogenesis in lizardPhrynocephalus vlangalii(Agamidae: Reptilia)

“…In addition, the OP of P. vlangalii is two times as long as OB, while the one of Gallotia galloti possesses the same length as its OB. It is striking that, unlike the other lizard species whose main and accessory olfactory bulbs are constituted by six concentric layers (Perez-Canellas & Garcia-Verdugo 1996), both of MOB and AOB of P. vlangalii don't show laminar organization. So we propose that proliferative capacity of different telencephalic areas varying in their neuronal populations differs among species and may follow some potential mechanism, which is related to corresponding functions.…”

“…However, in the Tarentola mauritanica, the majority of newborn cells seemed to be incorporated into MC (Perez-Canellas & Garcia-Verdugo 1996), which is considered as an area homologous to dentate gyrus of hippocampus in mammals on grounds of their anatomy, cyto-and chemoarchitecture and postnatal development (Lopez-Garcia et al 1992;Nacher et al 1996), and closely involved with learning and memory (Day et al 2001;Rodriguez et al 2002); DVR in Trachemys scrypta was found to show the most intensive labeling accumulation (Perez-Canellas et al 1997). It is possible that these interspecific differences may depend on behavioral patterns induced by distinct environmental stimuli.…”