Sight and insight – on the physiological role of nitric oxide in the visual system
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Sight and insight – on the physiological role of nitric oxide in the visual systemData
1999-03-01Cita bibliográfica
Cudeiro J, Rivadulla C. Sight and insight – on the physiological role of nitric oxide in the visual system. Trends Neurosci. 1999;22(3):109-116
Resumo
[Abstract] Research in the fields of cellular communication and signal transduction in the brain has moved very rapidly in recent years. Nitric oxide (NO) is one of the latest discoveries in the arena of messenger molecules. Current evidence indicates that, in visual system, NO is produced in both postsynaptic and presynaptic structures and acts as a neurotransmitter, albeit of a rather unorthodox type. Under certain conditions it can switch roles to become either a neuronal ‘friend’ or ‘foe’. Nitric oxide is a gas that diffuses through all physiological barriers to act on neighbouring cells across an extensive volume on a specific time scale. It, therefore, has the opportunity to control the processing of vision from the lowest level of retinal transduction to the control of neuronal excitability in the visual cortex.
Palabras chave
Nitric oxid
Vision
Retina
LGN
Visual cortex
NMDA
Development
Vision
Retina
LGN
Visual cortex
NMDA
Development
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Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International Licence (CC-BY-NC-ND 4.0)