geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Cells born in adult canary forebrain are local interneurons


, : Cells born in adult canary forebrain are local interneurons. Journal of Neuroscience 5(11): 3088-3093

Thymidine autoradiography and retrograde transport of horseradish peroxidase (HRP) were combined to determine the connectivity of neurons born in adult canary forebrain. Adult male and female canaries were pretreated with [3H]thymidine to label cells undergoing DNA synthesis prior to mitosis. Thirty or 60 days later, neurons in a forebrain nucleus, hyperstriatium ventralis, pars caudalis (HVc), were labeled by retrograde transport of HRP injected into the only two nuclei known to receive a projection from HVc: robustus archistriatalis (RA) and area X of lobus parolfactorius. The birds were then killed and brain sections were treated to visualize cells containing HRP; these sections were processed for autoradiography to detect [3H]thymidine-labeled cells in the same tissue. More than 9% of all neurons in HVc were thymidine labeled; but of the almost 20,000 HRP-labeled projection neurons examined, fewer than 20 (0.1%) were labeled by the thymidine treatment. Furthermore, the median cell body size for area X-projecting cells was significantly larger than that of thymidine-labeled cells, and the median size of thymidine-labeled cells was significantly larger than that of RA-projecting cells. The simplest interpretation of these results is that the new neurons incorporated into nucleus HVc in adult canary brain are local interneurons, intermediate in size between neurons projecting to RA and area X.

US$29.90

PMID: 2414419


Other references

Clark, J.S.ephenson, S., 1990: Didymium iridis reproductive systems: New additions. Mycologia 82(2): 274-276

Bayat Sarmadi, M.; Houdebine, L.M.rie, 1993: Effect of various protein kinase inhibitors on the induction of milk protein gene expression by prolactin. Prolactin has many known functions and one of them is to induce the expression of milk protein gene expression in the mammary gland. Specific membrane receptors have been recently characterized but the transduction mechanism involved in the transf...

Marchant, June, 1961: Failure of methylcholanthrene to induce breast tumors in male IF mice when administered before stimulation of the breast tissue by ovarian secretion. Intact male IF mice were given 8 fortnightly paintings of olive oil, each containing 2.5 mg. of methylcholanthrene. They were subsequently castrated and grafted subcutaneously with an ovary. The breast tissue grew under ovarian stimulation, but fa...

Abdel Aal, AA.; Frihy, OE., 1984: Concentration of Mg & Sr in the internal and external shell layers of the recent pelecypod Pinctada radiata (Leach). Neues Jahrbuch fuer Geologie und Palaeontologie Monatshefte, 8: 449-454

Kreike, C.M.; Stiekema, W.J., 1997: Reduced recombination and distorted segregation in a Solanum tuberosum (2x) x S. spegazzinii (2x) hybrid. In this paper we describe the reduced recombination and distorted segregation in an interspecific hybrid between Solanum tuberosum and Solanum spegazzinii. To study these phenomena, a cross was made between a (di)haploid S. tuberosum, used as a fe...

Frodel, J.L.; Sykes, J.M.; Jones, J.L., 2004: Evaluation and treatment of vertical microgenia. To evaluate treatment of vertical microgenia in patients with chin deformities. Twenty-one patients were included in this retrospective review. The 3 authors performed a lengthening genioplasty with or without interpositional grafting on each pati...

Cerejeira, M.-Jose; Batista, S.; Viana, P.; Fernandes, A.-Silva, 2000: Dinamica de agroquimicos no solo e agua subterranea do Ribatejo. The pesticides applied in agricultural ecosystems can acquire a dynamic that may affect several environmental compartments. The irrigation, among other factors, constitute an important parameter in the occurrence and dynamic of agrochemicals in so...

Messerle, N., 1936: Untersuchungen uber den Geschmackssinn der Fische. Aquar Berlin, 10: 101-106

Patel, H.M.; Bhavsar, S.K.; Thaker, A.M.; Wadhwani, K.N.; Malik, J.K., 1993: Disposition kinetics of metronidazole in sheep following oral administration. Indian Journal of Animal Sciences 63(12): 1280-1281

Hora, S.L., 1935: A note on the systematic position of Psilorhynchus aymonieri Tirant from Cambodia, Red. Indian Museum Calcutta, 37: 450-401