NDLI: Role of dopamine in distal retina

Content Provider	Springer Nature Link
Author	Popova, E.
Copyright Year	2014
Abstract	Dopamine is the most abundant catecholamine in the vertebrate retina. Despite the description of retinal dopaminergic cells three decades ago, many aspects of their function in the retina remain unclear. There is no consensus among the authors about the stimulus conditions for dopamine release (darkness, steady or flickering light) as well as about its action upon the various types of retinal cells. Many contradictory results exist concerning the dopamine effect on the gross electrical activity of the retina [reflected in electroretinogram (ERG)] and the receptors involved in its action. This review summarized current knowledge about the types of the dopaminergic neurons and receptors in the retina as well as the effects of dopamine receptor agonists and antagonists on the light responses of photoreceptors, horizontal and bipolar cells in both nonmammalian and mammalian retina. Special focus of interest concerns their effects upon the diffuse ERG as a useful tool for assessment of the overall function of the distal retina. An attempt is made to reveal some differences between the dopamine actions upon the activity of the ON versus OFF channel in the distal retina. The author has included her own results demonstrating such differences.
Starting Page	333
Ending Page	358
Page Count	26
File Format	PDF
ISSN	03407594
Journal	Journal of Comparative Physiology A
Volume Number	200
Issue Number	5
e-ISSN	14321351
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-04-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dopamine Dopamine receptors Horizontal cells Electroretinogram Retina Animal Physiology Neurosciences Zoology
Content Type	Text
Resource Type	Article
Subject	Physiology Behavioral Neuroscience Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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