Contrary to popular belief, chinchillas do not have a pure rod retina.

Animals Chinchilla / anatomy & histology Electroretinography / veterinary Retina / anatomy & histology Retinal Rod Photoreceptor Cells
blue cones diurnal electroretinography nocturnal red/green cones

Journal

Veterinary ophthalmology
ISSN: 1463-5224
Titre abrégé: Vet Ophthalmol
Pays: England
ID NLM: 100887377

Informations de publication

Date de publication:
Jan 2019
Historique:
pubmed: 12 6 2018
medline: 5 2 2019
entrez: 12 6 2018
Statut: ppublish

Résumé

To establish whether there is cone contribution to retinal function and structure in chinchillas (Chinchilla lanigera), in view of the prevailing notion that this species possesses a pure rod retina. Photopic electroretinography (ERG) responses to high-intensity flashes (10 and 25 cd*s/m ERG recordings revealed photopic responses, albeit of low amplitudes. Histopathology demonstrated presumptive cone inner segments in the photoreceptor layer. Presence of cone photoreceptors was confirmed by IHC. Cone density was higher in the central retina, and red/green cones outnumbered blue cones. Our results provide convincing evidence for the presence of functioning cone photoreceptors in the chinchilla retina, disproving the established belief that the species has a pure rod retina.

Identifiants

DOI: 10.1111/vop.12581 PMID: 29888430
pubmed: 29888430
doi: 10.1111/vop.12581
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

93-97

Informations de copyright

© 2018 American College of Veterinary Ophthalmologists.

Auteurs

Shai Sandalon (S)

Koret School of Veterinary Medicine, Hebrew University of Jerusalem, Rehovot, Israel.

Anna Boykova (A)

Oculus Center of Veterinary Ophthalmology, St Petersburg, Russia.

Maya Ross (M)

Koret School of Veterinary Medicine, Hebrew University of Jerusalem, Rehovot, Israel.

Alexey Obolensky (A)

Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.

Eyal Banin (E)

Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.

Ron Ofri (R)

Koret School of Veterinary Medicine, Hebrew University of Jerusalem, Rehovot, Israel.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Animaux › Contrary to popular belief, chinchillas do not...
questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Rodentia › Chinchilla › Contrary to popular belief, chinchillas do not...
questionsmedicales.fr › Diagnostic › Techniques et procédures diagnostiques › Électrodiagnostic › Électrorétinographie › Contrary to popular belief, chinchillas do not...
questionsmedicales.fr › Organes des sens › Oeil › Rétine › Contrary to popular belief, chinchillas do not...
questionsmedicales.fr › Cellules › Neurones › Neurones afférents › Cellules réceptrices sensorielles › Cellules photoréceptrices › Cellules photoréceptrices de vertébré › Cellules photoréceptrices en bâtonnet de la rétine › Contrary to popular belief, chinchillas do not...