The DAPI-3 amacrine cells of the rabbit retina

Visual Neuroscience
L L WrightD I Vaney

Abstract

In the rabbit retina, the nuclear dye, 4,6,diamidino-2-phenylindole (DAPI), selectively labels a third type of amacrine cell, in addition to the previously characterized type a and type b cholinergic amacrine cells. In this study, these "DAPI-3" amacrine cells have been characterized with respect to their somatic distribution, dendritic morphology, and neurotransmitter content by combining intracellular injection of biotinylated tracers with wholemount immunocytochemistry. There are about 100,000 DAPI-3 amacrine cells in total, accounting for 2% of all amacrine cells in the rabbit retina, and their cell density ranges from about 130 cells/mm2 in far-peripheral retina to 770 cells/mm2 in the visual streak. The thin varicose dendrites of the DAPI-3 amacrine cells form a convoluted dendritic tree that is symmetrically bistratified in S1/S2 and S4 of the inner plexiform layer. Tracer coupling shows that the DAPI-3 amacrine cells have a fivefold dendritic-field overlap in each sublamina, with the gaps in the arborization of each cell being occupied by dendrites from neighboring cells. The DAPI-3 amacrine cells consistently show the strongest glycine immunoreactivity in the rabbit retina and they also accumulate exogenous [3H]-glycin...Continue Reading

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Citations

Nov 5, 1998·The Journal of Comparative Neurology·N MengerH Wässle
Apr 5, 2002·The Journal of Comparative Neurology·Su-Ja OhNicholas C Brecha
Sep 25, 2002·The Journal of Comparative Neurology·In-Beom KimMyung-Hoon Chun
Jun 14, 2005·The Journal of Comparative Neurology·Tae-Hoon KangMyung-Hoon Chun
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Dec 13, 2006·The Journal of Comparative Neurology·Liane HeinzeHeinz Wässle
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Jul 21, 2004·Visual Neuroscience·Layne L Wright, David I Vaney
Aug 20, 2003·The Journal of Comparative Neurology·Daniel SunMichael Kalloniatis
Feb 13, 2004·The Journal of Comparative Neurology·Eun-Jin LeeMyung-Hoon Chun
Dec 4, 2003·The Journal of Comparative Neurology·Silke Haverkamp, Heinz Wässle
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Nov 24, 2004·The Journal of Comparative Neurology·Tudor Constantin Badea, Jeremy Nathans

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