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Modeling and Simulation of Phototransduction Cascade in Vertebrate Rod Photoreceptors

Overview
Journal BMC Ophthalmol
Publisher Biomed Central
Specialty Ophthalmology
Date 2019 Feb 22
PMID 30786871
Citations 1
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Abstract

Background: The activation of phototransduction cascade in rod photoreceptors has been well studied in literature, but there is a lack of a mature kinetic model structure covering both the activation and inactivation processes.

Methods: In this work, a kinetic model structure is developed to describe the major activation and inactivation processes in vertebrate rod photoreceptors with the electroretinogram (ERG) as output. Simulation was performed to validate developed model structure.

Results: The developed model structure could fit experimental data with small error.

Conclusions: The result indicated that the developed model structure could show the inactivation process of phototransduction cascades in the rod photoreceptors.

Citing Articles

Homeostasis at different backgrounds: The roles of overlayed feedback structures in vertebrate photoadaptation.

Grini J, Nygard M, Ruoff P PLoS One. 2023; 18(4):e0281490.

PMID: 37115760 PMC: 10146485. DOI: 10.1371/journal.pone.0281490.

References
1.
Arshavsky V, Lamb T, Pugh Jr E . G proteins and phototransduction. Annu Rev Physiol. 2002; 64:153-87. DOI: 10.1146/annurev.physiol.64.082701.102229. View

2.
Lamb T, Pugh Jr E . A quantitative account of the activation steps involved in phototransduction in amphibian photoreceptors. J Physiol. 1992; 449:719-58. PMC: 1176104. DOI: 10.1113/jphysiol.1992.sp019111. View

3.
Lamb T, Pugh Jr E . Dark adaptation and the retinoid cycle of vision. Prog Retin Eye Res. 2004; 23(3):307-80. DOI: 10.1016/j.preteyeres.2004.03.001. View

4.
Tranchina D, Sneyd J, Cadenas I . Light adaptation in turtle cones. Testing and analysis of a model for phototransduction. Biophys J. 1991; 60(1):217-37. PMC: 1260053. DOI: 10.1016/S0006-3495(91)82045-8. View

5.
GRANIT R . The components of the retinal action potential in mammals and their relation to the discharge in the optic nerve. J Physiol. 1933; 77(3):207-39. PMC: 1394767. DOI: 10.1113/jphysiol.1933.sp002964. View