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Titolo:
NUMBER AND DENDRITIC MORPHOLOGY OF RETINAL GANGLION-CELLS THAT SURVIVED AFTER AXOTOMY IN ADULT CATS
Autore:
WATANABE M; SAWAI H; FUKUDA Y;
Indirizzi:
AICHI HUMAN SERV CTR,INST DEV RES,DEPT PHYSIOL KASUGAI AICHI 48003 JAPAN OSAKA UNIV,SCH MED,DEPT PHYSIOL SUITA OSAKA 565 JAPAN
Titolo Testata:
Journal of neurobiology
fascicolo: 2, volume: 27, anno: 1995,
pagine: 189 - 203
SICI:
0022-3034(1995)27:2<189:NADMOR>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPTIC-NERVE SECTION; PERIPHERAL-NERVE; ELECTRORETINOGRAPHIC RESPONSES; SCHWANN-CELLS; Y-CELLS; X-CELLS; W-CELLS; QUANTITATIVE-ANALYSIS; ALTERNATING GRATINGS; CHOLINERGIC NEURONS;
Keywords:
OPTIC NERVE SECTION; RETINAL GANGLION CELLS; ALPHA CELL; BETA CELL; ADULT CAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
M. Watanabe et al., "NUMBER AND DENDRITIC MORPHOLOGY OF RETINAL GANGLION-CELLS THAT SURVIVED AFTER AXOTOMY IN ADULT CATS", Journal of neurobiology, 27(2), 1995, pp. 189-203

Abstract

Retinal ganglion cells (RGCs) of adult cats were labeled by injectionof diI into the proximal stump of completely transected optic nerves. Approximately 2% to 5% of the RGC population appeared viable 2 monthsafter these axotomies, based on diI retention. The morphological typeand dendritic arbor of these surviving RGCs were examined after intracellular injections of Lucifer Yellow into diI-labeled RGCs. Postaxotomy survival rate was much higher for alpha-like cells than for beta-like cells. However, in one of four retinas examined, a large number of RGCs seemed to survive axotomy, and among these, beta cells survived at an unusually high rate. Dendritic arbors of surviving RGCs were alsoexamined after intracellular injection of horseradish peroxidase. Some dendrites of these RGCs lacked branches and were thin in caliber. Other dendrites displayed many spiny processes and bulbous swellings. Essentially, these results confirm the previous suggestion that alpha cells survive axotomy longer than beta cells. The ability of alpha cellsto regenerate axons may thus be attributable to their relatively highresistance to axotomy. The atypical dendritic profiles seen after optic nerve transection may reflect either degeneration or regrowth of dendrites. (C) 1995 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 21:52:48