TY  - JOUR
AU  - Gačić, Zoran
AU  - Damjanović, Ilija
AU  - Konjević, D
AU  - Bajić, Aleksandar
AU  - Milošević, Milena
AU  - Andjus, PR
AU  - Mićković, Branislav
AU  - Andjus, RK
PY  - 2005
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/141
AB  - Scotopic electroretinogram of dogfish shark (Scylliorhinus canicula) and eel (Anguilla anguilla) is characterized by a negative off-response, changing in sign under photopic condition. It increased under the effect of increased background illumination, but its amplitude never exceeded that of the b-wave. On the other hand, dark-adapted electroretinograms of two perch-like species, perch (Perca fluviatilis) and painted comber (Serranus scriba), exhibited a positive off-wave, exceeding the b-wave amplitude under bright photopic conditions.
PB  - New York Acad Sciences, New York
T2  - Biophysics From Molecules to Brain: in Memory of Radoslav K. Andjus
T1  - Influence of photic environment on the form of the fish electroretinographic off-response
EP  - 440
SP  - 437
VL  - 1048
DO  - 10.1196/annals.1342.058
ER  - 

@article{
author = "Gačić, Zoran and Damjanović, Ilija and Konjević, D and Bajić, Aleksandar and Milošević, Milena and Andjus, PR and Mićković, Branislav and Andjus, RK",
year = "2005",
abstract = "Scotopic electroretinogram of dogfish shark (Scylliorhinus canicula) and eel (Anguilla anguilla) is characterized by a negative off-response, changing in sign under photopic condition. It increased under the effect of increased background illumination, but its amplitude never exceeded that of the b-wave. On the other hand, dark-adapted electroretinograms of two perch-like species, perch (Perca fluviatilis) and painted comber (Serranus scriba), exhibited a positive off-wave, exceeding the b-wave amplitude under bright photopic conditions.",
publisher = "New York Acad Sciences, New York",
journal = "Biophysics From Molecules to Brain: in Memory of Radoslav K. Andjus",
title = "Influence of photic environment on the form of the fish electroretinographic off-response",
pages = "440-437",
volume = "1048",
doi = "10.1196/annals.1342.058"
}

Gačić, Z., Damjanović, I., Konjević, D., Bajić, A., Milošević, M., Andjus, P., Mićković, B.,& Andjus, R.. (2005). Influence of photic environment on the form of the fish electroretinographic off-response. in Biophysics From Molecules to Brain: in Memory of Radoslav K. Andjus
New York Acad Sciences, New York., 1048, 437-440.
https://doi.org/10.1196/annals.1342.058

Gačić Z, Damjanović I, Konjević D, Bajić A, Milošević M, Andjus P, Mićković B, Andjus R. Influence of photic environment on the form of the fish electroretinographic off-response. in Biophysics From Molecules to Brain: in Memory of Radoslav K. Andjus. 2005;1048:437-440.
doi:10.1196/annals.1342.058 .

Gačić, Zoran, Damjanović, Ilija, Konjević, D, Bajić, Aleksandar, Milošević, Milena, Andjus, PR, Mićković, Branislav, Andjus, RK, "Influence of photic environment on the form of the fish electroretinographic off-response" in Biophysics From Molecules to Brain: in Memory of Radoslav K. Andjus, 1048 (2005):437-440,
https://doi.org/10.1196/annals.1342.058 . .

TY  - JOUR
AU  - Andjus, RK
AU  - Konjević, D
AU  - Damjanović, Ilija
AU  - Gačić, Zoran
PY  - 2000
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/56
AB  - In view of the use of synthetic propentofylline (PPF) as a protective agent in brain ischemia, its possible side effects on vision capacities have been explored by electroretinography in comparative experiments with theophylline. We used eyecup preparations of small-spotted dogfish sharks and of European eels, particularly ly suitable for long-lasting experiments. The drug exerted profound but reversible modifications of ERG records: (1) a dose-dependent increase of the amplitude and duration of the chemically isolated late receptor potential (LRP), (2) a partial unmasking of LRP, (3) a strong potentiation of the LRP-unmasking effect of low temperature, (3) a potentiation of light adaptation effects, and (5) a strong potentiation of the post-illumination hyperexcitability. The effects were explicable as due to a strong phosphodiesterase (PDE) inhibiting, cyclic guanosine monophosphate (cGMP) promoting, action of the drug. The effects were considerably stronger, or even of opposite sign, in comparison to those of the chemically related theophylline. PPF did not seriously affect the ERG c-wave originating in the pigment epithelium. The results suggested that the effects of PPF on vision may not seriously hamper the therapeutic use of the drug. They indicated, on the other hand, that PPF was a retinoactive drug of potential usefulness in the exploration of the complex biochemical events underlying visual transduction.
PB  - Elsevier, Amsterdam
T2  - Brain Research
T1  - Effects of xanthine derivatives on electroretinographic responsiveness
EP  - 190
IS  - 2
SP  - 176
VL  - 868
DO  - 10.1016/S0006-8993(00)02328-3
ER  - 

@article{
author = "Andjus, RK and Konjević, D and Damjanović, Ilija and Gačić, Zoran",
year = "2000",
abstract = "In view of the use of synthetic propentofylline (PPF) as a protective agent in brain ischemia, its possible side effects on vision capacities have been explored by electroretinography in comparative experiments with theophylline. We used eyecup preparations of small-spotted dogfish sharks and of European eels, particularly ly suitable for long-lasting experiments. The drug exerted profound but reversible modifications of ERG records: (1) a dose-dependent increase of the amplitude and duration of the chemically isolated late receptor potential (LRP), (2) a partial unmasking of LRP, (3) a strong potentiation of the LRP-unmasking effect of low temperature, (3) a potentiation of light adaptation effects, and (5) a strong potentiation of the post-illumination hyperexcitability. The effects were explicable as due to a strong phosphodiesterase (PDE) inhibiting, cyclic guanosine monophosphate (cGMP) promoting, action of the drug. The effects were considerably stronger, or even of opposite sign, in comparison to those of the chemically related theophylline. PPF did not seriously affect the ERG c-wave originating in the pigment epithelium. The results suggested that the effects of PPF on vision may not seriously hamper the therapeutic use of the drug. They indicated, on the other hand, that PPF was a retinoactive drug of potential usefulness in the exploration of the complex biochemical events underlying visual transduction.",
publisher = "Elsevier, Amsterdam",
journal = "Brain Research",
title = "Effects of xanthine derivatives on electroretinographic responsiveness",
pages = "190-176",
number = "2",
volume = "868",
doi = "10.1016/S0006-8993(00)02328-3"
}

Andjus, R., Konjević, D., Damjanović, I.,& Gačić, Z.. (2000). Effects of xanthine derivatives on electroretinographic responsiveness. in Brain Research
Elsevier, Amsterdam., 868(2), 176-190.
https://doi.org/10.1016/S0006-8993(00)02328-3

Andjus R, Konjević D, Damjanović I, Gačić Z. Effects of xanthine derivatives on electroretinographic responsiveness. in Brain Research. 2000;868(2):176-190.
doi:10.1016/S0006-8993(00)02328-3 .

Andjus, RK, Konjević, D, Damjanović, Ilija, Gačić, Zoran, "Effects of xanthine derivatives on electroretinographic responsiveness" in Brain Research, 868, no. 2 (2000):176-190,
https://doi.org/10.1016/S0006-8993(00)02328-3 . .

TY  - JOUR
AU  - Andjus, RK
AU  - Damjanović, Ilija
AU  - Gačić, Zoran
AU  - Konjević, D
AU  - Andjus, Pavle R.
PY  - 1998
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/46
AB  - Although differences in visual pigments between developmental stages of the European eel are well known, the expected differences in spectral sensitivity have not been demonstrated at the electrophysiological level. In fact, one past electroretinographic study led to the conclusion that in eels there is no change in scotopic sensitivity, with increasing sexual maturity. In the present experiments, electroretinograms (ERGs) were recorded from in situ eyecups of immobilized eels Anguilla anguilla (L.) caught in coastal running waters. It was shown that the ERG b-wave is as good an indicator of spectral sensitivity as the unmasked late receptor potential (LRP) which directly reflects the responsiveness of photoreceptors. Complete spectral-sensitivity curves, based on b-wave thresholds and on thresholds of LRP subsequently isolated by means of sodium iodate, have been obtained in the same eel. Using fitted amplitude-log intensity functions for threshold calculation, and two models for computer-assisted fitting of spectral-sensitivity curves, significant differences in lambda(max) were found between yellow and silver developmental stages of the eel, identified by ocular index measurements.
PB  - Cambridge Univ Press, New York
T2  - Visual Neuroscience
T1  - Electroretinographic evaluation of spectral sensitivity in yellow and silver eels (Anguilla anguilla)
EP  - 930
IS  - 5
SP  - 923
VL  - 15
DO  - 10.1017/S0952523898155189
ER  - 

@article{
author = "Andjus, RK and Damjanović, Ilija and Gačić, Zoran and Konjević, D and Andjus, Pavle R.",
year = "1998",
abstract = "Although differences in visual pigments between developmental stages of the European eel are well known, the expected differences in spectral sensitivity have not been demonstrated at the electrophysiological level. In fact, one past electroretinographic study led to the conclusion that in eels there is no change in scotopic sensitivity, with increasing sexual maturity. In the present experiments, electroretinograms (ERGs) were recorded from in situ eyecups of immobilized eels Anguilla anguilla (L.) caught in coastal running waters. It was shown that the ERG b-wave is as good an indicator of spectral sensitivity as the unmasked late receptor potential (LRP) which directly reflects the responsiveness of photoreceptors. Complete spectral-sensitivity curves, based on b-wave thresholds and on thresholds of LRP subsequently isolated by means of sodium iodate, have been obtained in the same eel. Using fitted amplitude-log intensity functions for threshold calculation, and two models for computer-assisted fitting of spectral-sensitivity curves, significant differences in lambda(max) were found between yellow and silver developmental stages of the eel, identified by ocular index measurements.",
publisher = "Cambridge Univ Press, New York",
journal = "Visual Neuroscience",
title = "Electroretinographic evaluation of spectral sensitivity in yellow and silver eels (Anguilla anguilla)",
pages = "930-923",
number = "5",
volume = "15",
doi = "10.1017/S0952523898155189"
}

Andjus, R., Damjanović, I., Gačić, Z., Konjević, D.,& Andjus, P. R.. (1998). Electroretinographic evaluation of spectral sensitivity in yellow and silver eels (Anguilla anguilla). in Visual Neuroscience
Cambridge Univ Press, New York., 15(5), 923-930.
https://doi.org/10.1017/S0952523898155189

Andjus R, Damjanović I, Gačić Z, Konjević D, Andjus PR. Electroretinographic evaluation of spectral sensitivity in yellow and silver eels (Anguilla anguilla). in Visual Neuroscience. 1998;15(5):923-930.
doi:10.1017/S0952523898155189 .

Andjus, RK, Damjanović, Ilija, Gačić, Zoran, Konjević, D, Andjus, Pavle R., "Electroretinographic evaluation of spectral sensitivity in yellow and silver eels (Anguilla anguilla)" in Visual Neuroscience, 15, no. 5 (1998):923-930,
https://doi.org/10.1017/S0952523898155189 . .