Ninković, Milica

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  • Ninković, Milica (10)

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Agmatine reduces chlorpromazine prooxidant effects in rat hippocampus and striatum

Dejanović, Bratislav; Begović-Kuprešanin, Vesna; Stevanović, Ivana; Lavrnja, Irena; Šošić-Jurjević, Branka ; Ninković, Milica; Trifunović, Svetlana

(Belgrade: Serbian Biological Society, 2021)

TY  - JOUR
AU  - Dejanović, Bratislav
AU  - Begović-Kuprešanin, Vesna
AU  - Stevanović, Ivana
AU  - Lavrnja, Irena
AU  - Šošić-Jurjević, Branka 
AU  - Ninković, Milica
AU  - Trifunović, Svetlana
PY  - 2021
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-46642100028D
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4651
UR  - https://www.serbiosoc.org.rs/arch/index.php/abs/article/view/6557
AB  - The use of the antidepressant drug chlorpromazine (CPZ) is linked to the occurrence of oxidative stress in some brain structures. Thus, overcoming the side effects of CPZ is of great importance. Because agmatine (AGM) can act as a free radical scavenger, it is an interesting compound as an adjunct to CPZ therapy. The aim of our study was to investigate the enzymatic parameters of oxidative stress in the hippocampus and striatum of rats after CPZ treatment, and the potential protective effects of AGM. Rats were injected as follows with (i) 1 mL/kg b.w. saline; (ii) a single intraperitoneal (i.p.) dose of CPZ (38.7 mg/kg); (iii) CPZ (38.7 mg/kg) and AGM (75 mg/kg); (iv) AGM (75 mg/kg). CPZ induced an increase in superoxide anion radical (O2 catalase (CAT), glutathione peroxidase (GPx) and glutathione reductase (GR), were lowered in both the hippocampus striatum. Cotreatment with CPZ and AGM protected the examined brain structures by reversing the antioxidant enzyme control values. Following CPZ treatment, the effects were more pronounced for SOD and GPx in the hippocampus, the striatum. The full effect of restored superoxide production was achieved in the striatum, which points to the role of CAT. The obtained results suggest that CPZ in combination with AGM may be considered as a new treatment strategy.
PB  - Belgrade: Serbian Biological Society
T2  - Archives of Biological Sciences
T1  - Agmatine reduces chlorpromazine prooxidant effects in rat hippocampus and striatum
IS  - 3
VL  - 73
DO  - 10.2298/abs210429028d
SP  - 353
EP  - 359
ER  - 
@article{
author = "Dejanović, Bratislav and Begović-Kuprešanin, Vesna and Stevanović, Ivana and Lavrnja, Irena and Šošić-Jurjević, Branka  and Ninković, Milica and Trifunović, Svetlana",
year = "2021",
abstract = "The use of the antidepressant drug chlorpromazine (CPZ) is linked to the occurrence of oxidative stress in some brain structures. Thus, overcoming the side effects of CPZ is of great importance. Because agmatine (AGM) can act as a free radical scavenger, it is an interesting compound as an adjunct to CPZ therapy. The aim of our study was to investigate the enzymatic parameters of oxidative stress in the hippocampus and striatum of rats after CPZ treatment, and the potential protective effects of AGM. Rats were injected as follows with (i) 1 mL/kg b.w. saline; (ii) a single intraperitoneal (i.p.) dose of CPZ (38.7 mg/kg); (iii) CPZ (38.7 mg/kg) and AGM (75 mg/kg); (iv) AGM (75 mg/kg). CPZ induced an increase in superoxide anion radical (O2 catalase (CAT), glutathione peroxidase (GPx) and glutathione reductase (GR), were lowered in both the hippocampus striatum. Cotreatment with CPZ and AGM protected the examined brain structures by reversing the antioxidant enzyme control values. Following CPZ treatment, the effects were more pronounced for SOD and GPx in the hippocampus, the striatum. The full effect of restored superoxide production was achieved in the striatum, which points to the role of CAT. The obtained results suggest that CPZ in combination with AGM may be considered as a new treatment strategy.",
publisher = "Belgrade: Serbian Biological Society",
journal = "Archives of Biological Sciences",
title = "Agmatine reduces chlorpromazine prooxidant effects in rat hippocampus and striatum",
number = "3",
volume = "73",
doi = "10.2298/abs210429028d",
pages = "353-359"
}
Dejanović, B., Begović-Kuprešanin, V., Stevanović, I., Lavrnja, I., Šošić-Jurjević, B., Ninković, M.,& Trifunović, S.. (2021). Agmatine reduces chlorpromazine prooxidant effects in rat hippocampus and striatum. in Archives of Biological Sciences
Belgrade: Serbian Biological Society., 73(3), 353-359.
https://doi.org/10.2298/abs210429028d
Dejanović B, Begović-Kuprešanin V, Stevanović I, Lavrnja I, Šošić-Jurjević B, Ninković M, Trifunović S. Agmatine reduces chlorpromazine prooxidant effects in rat hippocampus and striatum. in Archives of Biological Sciences. 2021;73(3):353-359.
doi:10.2298/abs210429028d .
Dejanović, Bratislav, Begović-Kuprešanin, Vesna, Stevanović, Ivana, Lavrnja, Irena, Šošić-Jurjević, Branka , Ninković, Milica, Trifunović, Svetlana, "Agmatine reduces chlorpromazine prooxidant effects in rat hippocampus and striatum" in Archives of Biological Sciences, 73, no. 3 (2021):353-359,
https://doi.org/10.2298/abs210429028d . .
1

Theta burst stimulation ameliorates symptoms of experimental autoimmune encephalomyelitis and attenuates reactive gliosis.

Dragić, Milorad; Zeljković, Milica; Stevanović, Ivana; Ilić, Tihomir; Ilić, Nela; Nedeljković, Nadezda; Ninković, Milica

(Elsevier BV, 2020)

TY  - JOUR
AU  - Dragić, Milorad
AU  - Zeljković, Milica
AU  - Stevanović, Ivana
AU  - Ilić, Tihomir
AU  - Ilić, Nela
AU  - Nedeljković, Nadezda
AU  - Ninković, Milica
PY  - 2020
UR  - http://www.ncbi.nlm.nih.gov/pubmed/32599126
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3768
AB  - Multiple sclerosis (MS) is a chronic neurodegenerative disease caused by inflammatory processes in the central nervous system (CNS). Decades of research led to discovery of several disease-modifying therapeutics strategies with moderate success. Experimental autoimmune encephalomyelitis (EAE) is currently the most commonly used experimental model for MS and for studying various therapeutic approaches. Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive neurostimulation technique with multiple beneficial effects on healthy as well as CNS with pathology. However, the molecular and cellular mechanisms of rTMS on acute EAE are scarce. Our study demonstrated beneficial effects of theta-burst stimulation (TBS), an experimental paradigm of rTMS, on disease course of acute EAE. TBS treatment attenuated reactive gliosis, restored myelin sheet and down-regulated expression of vimentin in EAE rats. These effects were reflected through reduced clinical parameters, shorter duration of illness and days spent in paralysis. Based on our research, rTMS deserves further considerations for its neuroprotective effect on EAE, and is an excellent candidate for further research and points that it could be used for more than for simple symptomatic therapy.
PB  - Elsevier BV
T2  - Brain Research Bulletin
T1  - Theta burst stimulation ameliorates symptoms of experimental autoimmune encephalomyelitis and attenuates reactive gliosis.
VL  - 162
DO  - 10.1016/j.brainresbull.2020.06.013
SP  - 208
EP  - 217
ER  - 
@article{
author = "Dragić, Milorad and Zeljković, Milica and Stevanović, Ivana and Ilić, Tihomir and Ilić, Nela and Nedeljković, Nadezda and Ninković, Milica",
year = "2020",
abstract = "Multiple sclerosis (MS) is a chronic neurodegenerative disease caused by inflammatory processes in the central nervous system (CNS). Decades of research led to discovery of several disease-modifying therapeutics strategies with moderate success. Experimental autoimmune encephalomyelitis (EAE) is currently the most commonly used experimental model for MS and for studying various therapeutic approaches. Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive neurostimulation technique with multiple beneficial effects on healthy as well as CNS with pathology. However, the molecular and cellular mechanisms of rTMS on acute EAE are scarce. Our study demonstrated beneficial effects of theta-burst stimulation (TBS), an experimental paradigm of rTMS, on disease course of acute EAE. TBS treatment attenuated reactive gliosis, restored myelin sheet and down-regulated expression of vimentin in EAE rats. These effects were reflected through reduced clinical parameters, shorter duration of illness and days spent in paralysis. Based on our research, rTMS deserves further considerations for its neuroprotective effect on EAE, and is an excellent candidate for further research and points that it could be used for more than for simple symptomatic therapy.",
publisher = "Elsevier BV",
journal = "Brain Research Bulletin",
title = "Theta burst stimulation ameliorates symptoms of experimental autoimmune encephalomyelitis and attenuates reactive gliosis.",
volume = "162",
doi = "10.1016/j.brainresbull.2020.06.013",
pages = "208-217"
}
Dragić, M., Zeljković, M., Stevanović, I., Ilić, T., Ilić, N., Nedeljković, N.,& Ninković, M.. (2020). Theta burst stimulation ameliorates symptoms of experimental autoimmune encephalomyelitis and attenuates reactive gliosis.. in Brain Research Bulletin
Elsevier BV., 162, 208-217.
https://doi.org/10.1016/j.brainresbull.2020.06.013
Dragić M, Zeljković M, Stevanović I, Ilić T, Ilić N, Nedeljković N, Ninković M. Theta burst stimulation ameliorates symptoms of experimental autoimmune encephalomyelitis and attenuates reactive gliosis.. in Brain Research Bulletin. 2020;162:208-217.
doi:10.1016/j.brainresbull.2020.06.013 .
Dragić, Milorad, Zeljković, Milica, Stevanović, Ivana, Ilić, Tihomir, Ilić, Nela, Nedeljković, Nadezda, Ninković, Milica, "Theta burst stimulation ameliorates symptoms of experimental autoimmune encephalomyelitis and attenuates reactive gliosis." in Brain Research Bulletin, 162 (2020):208-217,
https://doi.org/10.1016/j.brainresbull.2020.06.013 . .
1
11
1
9

Theta burst stimulation influence the expression of BDNF in the spinal cord on the experimental autoimmune encephalomyelitis.

Stevanović, Ivana; Mančić, Bojana; Ilić, Tihomir; Milosavljević, Petar; Lavrnja, Irena; Stojanović, Ivana; Ninković, Milica

(2019)

TY  - JOUR
AU  - Stevanović, Ivana
AU  - Mančić, Bojana
AU  - Ilić, Tihomir
AU  - Milosavljević, Petar
AU  - Lavrnja, Irena
AU  - Stojanović, Ivana
AU  - Ninković, Milica
PY  - 2019
UR  - https://www.termedia.pl/doi/10.5114/fn.2019.86294
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3480
AB  - Repetitive transcranial magnetic stimulation (rTMS) induces changes in expression of proteins engaged in the activity of excitatory and inhibitory systems, restores these functions and suppresses the progression of disability in experimental autoimmune encephalitis (EAE). The structural type of TMS, the arrangement as theta burst stimulation (TBS) has been applied as intermittent TBS (iTBS) and continuous TBS (cTBS) protocols to female adult DA rats. The animals were randomly divided into experimental groups: control group (C), group treated with complete Freund's adjuvant (CFA), experimental autoimmune encephalomyelitis (EAE) group, group treated with iTBS post EAE immunization (EAE + iTBS), group treated with cTBS post EAE immunization (EAE + cTBS), group of healthy animals treated with iTBS or cTBS. Therapeutic protocols of iTBS or cTBS in all EAE groups of animals were performed starting from 14 days post immunization (dpi), for 10 days with time point decapitation at 24 dpi. After decapitation, spinal cords were analysed for BDNF and Ki67 expression. The results revealed reduced BDNF expression in the rat's spinal cord of EAE animals in the stage of remission, which was associated with increased Ki67 and GFAP expressions. Decreased Iba 1 and BDNF expression, contrary to increased Iba 1 and Ki67 expression, suggests clustered microglia in the resolution phase of EAE. Enhanced GABA expression in spinal cord sections indicates higher GABA metabolic turnover, and also GAD activity in astrocytes, or prominent activity of GABAergic neurons. Both TBS protocols induced advance BDNF expression; amongst iTBS application provoked elevating of BDNF and stabilizing of GFAP and Ki67 expressions.
T2  - Folia Neuropathologica
T1  - Theta burst stimulation influence the expression of BDNF in the spinal cord on the experimental autoimmune encephalomyelitis.
IS  - 2
VL  - 57
DO  - 10.5114/fn.2019.86294
SP  - 129
EP  - 145
ER  - 
@article{
author = "Stevanović, Ivana and Mančić, Bojana and Ilić, Tihomir and Milosavljević, Petar and Lavrnja, Irena and Stojanović, Ivana and Ninković, Milica",
year = "2019",
abstract = "Repetitive transcranial magnetic stimulation (rTMS) induces changes in expression of proteins engaged in the activity of excitatory and inhibitory systems, restores these functions and suppresses the progression of disability in experimental autoimmune encephalitis (EAE). The structural type of TMS, the arrangement as theta burst stimulation (TBS) has been applied as intermittent TBS (iTBS) and continuous TBS (cTBS) protocols to female adult DA rats. The animals were randomly divided into experimental groups: control group (C), group treated with complete Freund's adjuvant (CFA), experimental autoimmune encephalomyelitis (EAE) group, group treated with iTBS post EAE immunization (EAE + iTBS), group treated with cTBS post EAE immunization (EAE + cTBS), group of healthy animals treated with iTBS or cTBS. Therapeutic protocols of iTBS or cTBS in all EAE groups of animals were performed starting from 14 days post immunization (dpi), for 10 days with time point decapitation at 24 dpi. After decapitation, spinal cords were analysed for BDNF and Ki67 expression. The results revealed reduced BDNF expression in the rat's spinal cord of EAE animals in the stage of remission, which was associated with increased Ki67 and GFAP expressions. Decreased Iba 1 and BDNF expression, contrary to increased Iba 1 and Ki67 expression, suggests clustered microglia in the resolution phase of EAE. Enhanced GABA expression in spinal cord sections indicates higher GABA metabolic turnover, and also GAD activity in astrocytes, or prominent activity of GABAergic neurons. Both TBS protocols induced advance BDNF expression; amongst iTBS application provoked elevating of BDNF and stabilizing of GFAP and Ki67 expressions.",
journal = "Folia Neuropathologica",
title = "Theta burst stimulation influence the expression of BDNF in the spinal cord on the experimental autoimmune encephalomyelitis.",
number = "2",
volume = "57",
doi = "10.5114/fn.2019.86294",
pages = "129-145"
}
Stevanović, I., Mančić, B., Ilić, T., Milosavljević, P., Lavrnja, I., Stojanović, I.,& Ninković, M.. (2019). Theta burst stimulation influence the expression of BDNF in the spinal cord on the experimental autoimmune encephalomyelitis.. in Folia Neuropathologica, 57(2), 129-145.
https://doi.org/10.5114/fn.2019.86294
Stevanović I, Mančić B, Ilić T, Milosavljević P, Lavrnja I, Stojanović I, Ninković M. Theta burst stimulation influence the expression of BDNF in the spinal cord on the experimental autoimmune encephalomyelitis.. in Folia Neuropathologica. 2019;57(2):129-145.
doi:10.5114/fn.2019.86294 .
Stevanović, Ivana, Mančić, Bojana, Ilić, Tihomir, Milosavljević, Petar, Lavrnja, Irena, Stojanović, Ivana, Ninković, Milica, "Theta burst stimulation influence the expression of BDNF in the spinal cord on the experimental autoimmune encephalomyelitis." in Folia Neuropathologica, 57, no. 2 (2019):129-145,
https://doi.org/10.5114/fn.2019.86294 . .
14
3

Effects of agmatine on chlorpromazine-induced neuronal injury in rat

Dejanović, Bratislav; Vuković-Dejanović, Vesna; Ninković, Milica; Lavrnja, Irena; Stojanović, Ivana; Pavlović, Miloš; Begović, Vesna; Mirković, Duško; Stevanović, Ivana

(2018)

TY  - JOUR
AU  - Dejanović, Bratislav
AU  - Vuković-Dejanović, Vesna
AU  - Ninković, Milica
AU  - Lavrnja, Irena
AU  - Stojanović, Ivana
AU  - Pavlović, Miloš
AU  - Begović, Vesna
AU  - Mirković, Duško
AU  - Stevanović, Ivana
PY  - 2018
UR  - https://actavet.vfu.cz/87/2/0145/
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3097
AB  - This study was aimed to study the potentially beneficial effects of agmatine on oxidative/nitrosative stress development in the brain of Wistar rats during subacute chlorpromazine treatment. The animals were divided into control (0.9% saline), chlorpromazine (38.7 mg/kg b.w.), chlorpromazine+agmatine (agmatine 75 mg/kg b.w. immediately after chlorpromazine, 38.7 mg/kg b.w. i.p.) and agmatine (75 mg/kg b.w.) groups. All the tested substances were administered intraperitoneally for 15 consecutive days and the rats were sacrificed by decapitation on day 15. Subacute administration of chlorpromazine resulted in increased lipid peroxidation, nitric oxide concentration and superoxide anion production, while completely damaging the antioxidant defence system in the cerebral cortex, striatum, and hippocampus. However, the combined treatment with chlorpromazine and agmatine significantly attenuated the oxidative/nitrosative stress indices and restored the antioxidant capacity to the control values in all of the examined brain regions. Western blot analysis supported biochemical findings in all groups, but the most notable changes were found in the hippocampus. Our results suggest potentially beneficial effects of agmatine, which may be useful in the modified antioxidant approach in chlorpromazine-therapy.
T2  - Acta Veterinaria Brno
T1  - Effects of agmatine on chlorpromazine-induced neuronal injury in rat
IS  - 2
VL  - 87
DO  - 10.2754/avb201887020145
DO  - 0001-7213
SP  - 145
EP  - 153
ER  - 
@article{
author = "Dejanović, Bratislav and Vuković-Dejanović, Vesna and Ninković, Milica and Lavrnja, Irena and Stojanović, Ivana and Pavlović, Miloš and Begović, Vesna and Mirković, Duško and Stevanović, Ivana",
year = "2018",
abstract = "This study was aimed to study the potentially beneficial effects of agmatine on oxidative/nitrosative stress development in the brain of Wistar rats during subacute chlorpromazine treatment. The animals were divided into control (0.9% saline), chlorpromazine (38.7 mg/kg b.w.), chlorpromazine+agmatine (agmatine 75 mg/kg b.w. immediately after chlorpromazine, 38.7 mg/kg b.w. i.p.) and agmatine (75 mg/kg b.w.) groups. All the tested substances were administered intraperitoneally for 15 consecutive days and the rats were sacrificed by decapitation on day 15. Subacute administration of chlorpromazine resulted in increased lipid peroxidation, nitric oxide concentration and superoxide anion production, while completely damaging the antioxidant defence system in the cerebral cortex, striatum, and hippocampus. However, the combined treatment with chlorpromazine and agmatine significantly attenuated the oxidative/nitrosative stress indices and restored the antioxidant capacity to the control values in all of the examined brain regions. Western blot analysis supported biochemical findings in all groups, but the most notable changes were found in the hippocampus. Our results suggest potentially beneficial effects of agmatine, which may be useful in the modified antioxidant approach in chlorpromazine-therapy.",
journal = "Acta Veterinaria Brno",
title = "Effects of agmatine on chlorpromazine-induced neuronal injury in rat",
number = "2",
volume = "87",
doi = "10.2754/avb201887020145, 0001-7213",
pages = "145-153"
}
Dejanović, B., Vuković-Dejanović, V., Ninković, M., Lavrnja, I., Stojanović, I., Pavlović, M., Begović, V., Mirković, D.,& Stevanović, I.. (2018). Effects of agmatine on chlorpromazine-induced neuronal injury in rat. in Acta Veterinaria Brno, 87(2), 145-153.
https://doi.org/10.2754/avb201887020145
Dejanović B, Vuković-Dejanović V, Ninković M, Lavrnja I, Stojanović I, Pavlović M, Begović V, Mirković D, Stevanović I. Effects of agmatine on chlorpromazine-induced neuronal injury in rat. in Acta Veterinaria Brno. 2018;87(2):145-153.
doi:10.2754/avb201887020145 .
Dejanović, Bratislav, Vuković-Dejanović, Vesna, Ninković, Milica, Lavrnja, Irena, Stojanović, Ivana, Pavlović, Miloš, Begović, Vesna, Mirković, Duško, Stevanović, Ivana, "Effects of agmatine on chlorpromazine-induced neuronal injury in rat" in Acta Veterinaria Brno, 87, no. 2 (2018):145-153,
https://doi.org/10.2754/avb201887020145 . .
2
1
2

Effects of agmatine on chlorpromazine toxicity in the liver of Wistar rats: the possible role of oxidant/antioxidant imbalance

Dejanović, Bratislav; Lavrnja, Irena; Ninković, Milica; Stojanović, Ivana; Đurić, Ana; Dilber, Sanda; Stevanović, Ivana

(2017)

TY  - JOUR
AU  - Dejanović, Bratislav
AU  - Lavrnja, Irena
AU  - Ninković, Milica
AU  - Stojanović, Ivana
AU  - Đurić, Ana
AU  - Dilber, Sanda
AU  - Stevanović, Ivana
PY  - 2017
UR  - https://www.jstage.jst.go.jp/article/expanim/66/1/66_16-0010/_article
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/2562
AB  - Chlorpromazine (CPZ) is a member of a widely used class of antipsychotic agents. The metabolic pathways of CPZ toxicity were examined by monitoring oxidative/nitrosative stress markers. The aim of the study was to investigate the hypothesis that agmatine (AGM) prevents oxidative stress in the liver of Wistar rats 48 h after administration of CPZ. All tested compounds were administered intraperitoneally (i.p.) in one single dose. The animals were divided into control (C, 0.9% saline solution), CPZ (CPZ, 38.7 mg/kg b.w.), CPZ+AGM (AGM, 75 mg/kg b.w. immediately after CPZ, 38.7 mg/kg b.w. i.p.), and AGM (AGM, 75 mg/kg b.w.) groups. Rats were sacrificed by decapitation 48 h after treatment. The CPZ and CPZ+AGM treatments significantly increased thiobarbituric acid reactive substances (TBARS), the nitrite and nitrate (NO2+NO3) concentration, and superoxide anion (O2 •-) production in rat liver homogenates compared with C values. CPZ injection decreased the capacity of the antioxidant defense system: superoxide dismutase (SOD) activity, catalase (CAT) activity, total glutathione (GSH) content, glutathione peroxidase (GPx) activity, and glutathione reductase (GR) activity compared with the values of the C group. However, treatment with AGM increased antioxidant capacity in the rat liver; it increased the CAT activity, GSH concentration, GPx activity, and GR activity compared with the values of the CPZ rats. Immunohistochemical staining of ED1 in rats showed an increase in the number of positive cells 48 h after acute CPZ administration compared with the C group. Our results showed that AGM has no protective effects on parameters of oxidative and/or nitrosative stress in the liver but that it absolutely protective effects on the antioxidant defense system and restores the antioxidant capacity in liver tissue after administration of CPZ.
T2  - Experimental Animals
T1  - Effects of agmatine on chlorpromazine toxicity in the liver of Wistar rats: the possible role of oxidant/antioxidant imbalance
IS  - 1
VL  - 66
DO  - 10.1538/expanim.16-0010
SP  - 17
EP  - 27
ER  - 
@article{
author = "Dejanović, Bratislav and Lavrnja, Irena and Ninković, Milica and Stojanović, Ivana and Đurić, Ana and Dilber, Sanda and Stevanović, Ivana",
year = "2017",
abstract = "Chlorpromazine (CPZ) is a member of a widely used class of antipsychotic agents. The metabolic pathways of CPZ toxicity were examined by monitoring oxidative/nitrosative stress markers. The aim of the study was to investigate the hypothesis that agmatine (AGM) prevents oxidative stress in the liver of Wistar rats 48 h after administration of CPZ. All tested compounds were administered intraperitoneally (i.p.) in one single dose. The animals were divided into control (C, 0.9% saline solution), CPZ (CPZ, 38.7 mg/kg b.w.), CPZ+AGM (AGM, 75 mg/kg b.w. immediately after CPZ, 38.7 mg/kg b.w. i.p.), and AGM (AGM, 75 mg/kg b.w.) groups. Rats were sacrificed by decapitation 48 h after treatment. The CPZ and CPZ+AGM treatments significantly increased thiobarbituric acid reactive substances (TBARS), the nitrite and nitrate (NO2+NO3) concentration, and superoxide anion (O2 •-) production in rat liver homogenates compared with C values. CPZ injection decreased the capacity of the antioxidant defense system: superoxide dismutase (SOD) activity, catalase (CAT) activity, total glutathione (GSH) content, glutathione peroxidase (GPx) activity, and glutathione reductase (GR) activity compared with the values of the C group. However, treatment with AGM increased antioxidant capacity in the rat liver; it increased the CAT activity, GSH concentration, GPx activity, and GR activity compared with the values of the CPZ rats. Immunohistochemical staining of ED1 in rats showed an increase in the number of positive cells 48 h after acute CPZ administration compared with the C group. Our results showed that AGM has no protective effects on parameters of oxidative and/or nitrosative stress in the liver but that it absolutely protective effects on the antioxidant defense system and restores the antioxidant capacity in liver tissue after administration of CPZ.",
journal = "Experimental Animals",
title = "Effects of agmatine on chlorpromazine toxicity in the liver of Wistar rats: the possible role of oxidant/antioxidant imbalance",
number = "1",
volume = "66",
doi = "10.1538/expanim.16-0010",
pages = "17-27"
}
Dejanović, B., Lavrnja, I., Ninković, M., Stojanović, I., Đurić, A., Dilber, S.,& Stevanović, I.. (2017). Effects of agmatine on chlorpromazine toxicity in the liver of Wistar rats: the possible role of oxidant/antioxidant imbalance. in Experimental Animals, 66(1), 17-27.
https://doi.org/10.1538/expanim.16-0010
Dejanović B, Lavrnja I, Ninković M, Stojanović I, Đurić A, Dilber S, Stevanović I. Effects of agmatine on chlorpromazine toxicity in the liver of Wistar rats: the possible role of oxidant/antioxidant imbalance. in Experimental Animals. 2017;66(1):17-27.
doi:10.1538/expanim.16-0010 .
Dejanović, Bratislav, Lavrnja, Irena, Ninković, Milica, Stojanović, Ivana, Đurić, Ana, Dilber, Sanda, Stevanović, Ivana, "Effects of agmatine on chlorpromazine toxicity in the liver of Wistar rats: the possible role of oxidant/antioxidant imbalance" in Experimental Animals, 66, no. 1 (2017):17-27,
https://doi.org/10.1538/expanim.16-0010 . .
10
13

Protective effects of agmatine against chlorpromazine-induced toxicity in the liver of wistar rats

Dejanović, Bratislav; Stevanović, Ivana; Ninković, Milica; Stojanović, Ivana; Lavrnja, Irena; Radičević, Tatjana

(2016)

TY  - JOUR
AU  - Dejanović, Bratislav
AU  - Stevanović, Ivana
AU  - Ninković, Milica
AU  - Stojanović, Ivana
AU  - Lavrnja, Irena
AU  - Radičević, Tatjana
PY  - 2016
UR  - http://www.scopus.com/inward/record.url?eid=2-s2.0-84964311353&partnerID=tZOtx3y1
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/2531
AB  - Summary The metabolic pathways of chlorpromazine (CPZ) toxicity were tracked by assessing oxidative/nitrosative stress markers. The main objective of the study was to test the hypothesis that agmatine (AGM) prevents oxidative/nitrosative stress in the liver of Wistar rats 15 days after administration of CPZ. All tested substances were administered intraperitoneally (i.p.) for 15 consecutive days. The rats were divided into four groups: the control group (C, 0.9 % saline solution), the CPZ group (CPZ, 38.7 mg/kg b.w.), the CPZ+AGM group (AGM, 75 mg/kg b.w. immediately after CPZ, 38.7 mg/kg b.w. i.p.) and the AGM group (AGM, 75 mg/kg b.w.). Rats were decapitated 15 days after the appropriate treatment. In the CPZ group, CPZ concentration was significantly increased compared to C values (p<0.01), while AGM treatment induced the significant decrease in CPZ concentration in the CPZ+AGM group (p<0.05) and the AGM group (p<0.01). CPZ application to healthy rats did not lead to any changes of lipid peroxidation in the liver compared to the C group, but AGM treatment decreased that parameter compared to the CPZ group (p<0.05). In CPZ liver homogenates, nitrite and nitrate concentrations were increased compared to controls (p<0.001), and AGM treatment diminished that parameter in the CPZ group (p<0.05), as well as in the AGM group (p<0.001). In CPZ animals, glutathione level and catalase activity were decreased in comparison with C values (p<0.01 respectively), but AGM treatment increased the activity of catalase in comparison with CPZ animals (p<0.05 respectively). Western blot analysis supported biochemical findings in all groups. Our results showed that treatment with AGM significantly supressed the oxidative/nitrosative stress parameters and restored antioxidant defense in rat liver.
T2  - Acta Facultatis Medicae Naissensis
T1  - Protective effects of agmatine against chlorpromazine-induced toxicity in the liver of wistar rats
IS  - 1
VL  - 33
DO  - 10.1515/afmnai-2016-0002
SP  - 13
EP  - 22
ER  - 
@article{
author = "Dejanović, Bratislav and Stevanović, Ivana and Ninković, Milica and Stojanović, Ivana and Lavrnja, Irena and Radičević, Tatjana",
year = "2016",
abstract = "Summary The metabolic pathways of chlorpromazine (CPZ) toxicity were tracked by assessing oxidative/nitrosative stress markers. The main objective of the study was to test the hypothesis that agmatine (AGM) prevents oxidative/nitrosative stress in the liver of Wistar rats 15 days after administration of CPZ. All tested substances were administered intraperitoneally (i.p.) for 15 consecutive days. The rats were divided into four groups: the control group (C, 0.9 % saline solution), the CPZ group (CPZ, 38.7 mg/kg b.w.), the CPZ+AGM group (AGM, 75 mg/kg b.w. immediately after CPZ, 38.7 mg/kg b.w. i.p.) and the AGM group (AGM, 75 mg/kg b.w.). Rats were decapitated 15 days after the appropriate treatment. In the CPZ group, CPZ concentration was significantly increased compared to C values (p<0.01), while AGM treatment induced the significant decrease in CPZ concentration in the CPZ+AGM group (p<0.05) and the AGM group (p<0.01). CPZ application to healthy rats did not lead to any changes of lipid peroxidation in the liver compared to the C group, but AGM treatment decreased that parameter compared to the CPZ group (p<0.05). In CPZ liver homogenates, nitrite and nitrate concentrations were increased compared to controls (p<0.001), and AGM treatment diminished that parameter in the CPZ group (p<0.05), as well as in the AGM group (p<0.001). In CPZ animals, glutathione level and catalase activity were decreased in comparison with C values (p<0.01 respectively), but AGM treatment increased the activity of catalase in comparison with CPZ animals (p<0.05 respectively). Western blot analysis supported biochemical findings in all groups. Our results showed that treatment with AGM significantly supressed the oxidative/nitrosative stress parameters and restored antioxidant defense in rat liver.",
journal = "Acta Facultatis Medicae Naissensis",
title = "Protective effects of agmatine against chlorpromazine-induced toxicity in the liver of wistar rats",
number = "1",
volume = "33",
doi = "10.1515/afmnai-2016-0002",
pages = "13-22"
}
Dejanović, B., Stevanović, I., Ninković, M., Stojanović, I., Lavrnja, I.,& Radičević, T.. (2016). Protective effects of agmatine against chlorpromazine-induced toxicity in the liver of wistar rats. in Acta Facultatis Medicae Naissensis, 33(1), 13-22.
https://doi.org/10.1515/afmnai-2016-0002
Dejanović B, Stevanović I, Ninković M, Stojanović I, Lavrnja I, Radičević T. Protective effects of agmatine against chlorpromazine-induced toxicity in the liver of wistar rats. in Acta Facultatis Medicae Naissensis. 2016;33(1):13-22.
doi:10.1515/afmnai-2016-0002 .
Dejanović, Bratislav, Stevanović, Ivana, Ninković, Milica, Stojanović, Ivana, Lavrnja, Irena, Radičević, Tatjana, "Protective effects of agmatine against chlorpromazine-induced toxicity in the liver of wistar rats" in Acta Facultatis Medicae Naissensis, 33, no. 1 (2016):13-22,
https://doi.org/10.1515/afmnai-2016-0002 . .

Efekat L-NAME na AlCl3-indukovanu toksičnost u mozgu pacova

Stevanović, Ivana; Jovanović, Marina; Jelenković, Ankica V.; Bokonjić, D.; Čolić, M.; Stojanović, Ivana; Ninković, Milica

(2009)

TY  - JOUR
AU  - Stevanović, Ivana
AU  - Jovanović, Marina
AU  - Jelenković, Ankica V.
AU  - Bokonjić, D.
AU  - Čolić, M.
AU  - Stojanović, Ivana
AU  - Ninković, Milica
PY  - 2009
PY  - 2009
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/475
AB  - The present experiment was carried out to determine the effectiveness of nitric oxide synthase (NOS) inhibitor (L-NAME) in elevating the toxicity of AlCl3 on nitrite concentration and acetylcholine esterase activity of Wistar rats. Animals were killed 10 min and 3 days after the treatment and the forebrain cortex and striatum were removed. The results show that AlCl3 exposure promotes oxidative stress in different neural areas. The biochemical changes observed in neuronal tissues show that aluminium acts as a pro-oxidant, while NOS inhibitor exerts as antioxidant action in AlCl3-treated animals. In the present study, active avoidance learning was significantly impaired after AlCl3 injection, while pretreatment with L-NAME prevented the behavioural deficits caused between the 8th and 12th day after intrahippocampal application of neurotoxin. Our data suggest that aluminium may cause learning and memory deficits, while the treatment with L-NAME may decrease the oxidative stress and prevent learning and memory deficits caused by AlCl3.
AB  - U eksperimentu je ispitivana efikasnost inhibitora azot oksid sintaze (NOS)- L-NAME na toksičnost AlCl3 i određivana koncentracija nitrita i aktivnost acetilholin esteraze kod Wistar pacova. Životinje su dekapitovane 10 minuta ili 3 dana nakon tretmana i izolovani su kora prednjeg mozga i strijatum. Rezultati ukazuju da AlCl3 pokreće oksidativni stres u različitim regionima mozga. Biohemijske promene opisane u neuronskom tkivu ukazuju da aluminijum deluje kao prooksidans, dok inhibitor NOS ima antioksidativno dejstvo kod životinja tretiranih AlCl3. Reakcija aktivnog izbegavanja je bila znatno poremećena nakon aplikacije AlCl3, dok se davanjem L-NAME sprečavaju poremećaji ponašanja uzrokovani između 8. i 12. dana posle intrahipokampusne primene neurotoksina. Naši rezultati ukazuju da aluminijum može dovesti do smetnji u procesima učenja i pamćenja, dok tretman sa L-NAME smanjuje oksidativni stres i sprečava promene u učenju i pamćenju uzrokovane AlCl3.
T2  - Acta veterinaria
T1  - Efekat L-NAME na AlCl3-indukovanu toksičnost u mozgu pacova
T1  - Effect of L-NAME on AlCl3-induced toxicity in rat brain
IS  - 2-3
VL  - 59
DO  - 10.2298/AVB0903133S
SP  - 133
EP  - 146
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_475
ER  - 
@article{
author = "Stevanović, Ivana and Jovanović, Marina and Jelenković, Ankica V. and Bokonjić, D. and Čolić, M. and Stojanović, Ivana and Ninković, Milica",
year = "2009, 2009",
abstract = "The present experiment was carried out to determine the effectiveness of nitric oxide synthase (NOS) inhibitor (L-NAME) in elevating the toxicity of AlCl3 on nitrite concentration and acetylcholine esterase activity of Wistar rats. Animals were killed 10 min and 3 days after the treatment and the forebrain cortex and striatum were removed. The results show that AlCl3 exposure promotes oxidative stress in different neural areas. The biochemical changes observed in neuronal tissues show that aluminium acts as a pro-oxidant, while NOS inhibitor exerts as antioxidant action in AlCl3-treated animals. In the present study, active avoidance learning was significantly impaired after AlCl3 injection, while pretreatment with L-NAME prevented the behavioural deficits caused between the 8th and 12th day after intrahippocampal application of neurotoxin. Our data suggest that aluminium may cause learning and memory deficits, while the treatment with L-NAME may decrease the oxidative stress and prevent learning and memory deficits caused by AlCl3., U eksperimentu je ispitivana efikasnost inhibitora azot oksid sintaze (NOS)- L-NAME na toksičnost AlCl3 i određivana koncentracija nitrita i aktivnost acetilholin esteraze kod Wistar pacova. Životinje su dekapitovane 10 minuta ili 3 dana nakon tretmana i izolovani su kora prednjeg mozga i strijatum. Rezultati ukazuju da AlCl3 pokreće oksidativni stres u različitim regionima mozga. Biohemijske promene opisane u neuronskom tkivu ukazuju da aluminijum deluje kao prooksidans, dok inhibitor NOS ima antioksidativno dejstvo kod životinja tretiranih AlCl3. Reakcija aktivnog izbegavanja je bila znatno poremećena nakon aplikacije AlCl3, dok se davanjem L-NAME sprečavaju poremećaji ponašanja uzrokovani između 8. i 12. dana posle intrahipokampusne primene neurotoksina. Naši rezultati ukazuju da aluminijum može dovesti do smetnji u procesima učenja i pamćenja, dok tretman sa L-NAME smanjuje oksidativni stres i sprečava promene u učenju i pamćenju uzrokovane AlCl3.",
journal = "Acta veterinaria",
title = "Efekat L-NAME na AlCl3-indukovanu toksičnost u mozgu pacova, Effect of L-NAME on AlCl3-induced toxicity in rat brain",
number = "2-3",
volume = "59",
doi = "10.2298/AVB0903133S",
pages = "133-146",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_475"
}
Stevanović, I., Jovanović, M., Jelenković, A. V., Bokonjić, D., Čolić, M., Stojanović, I.,& Ninković, M.. (2009). Efekat L-NAME na AlCl3-indukovanu toksičnost u mozgu pacova. in Acta veterinaria, 59(2-3), 133-146.
https://doi.org/10.2298/AVB0903133S
https://hdl.handle.net/21.15107/rcub_ibiss_475
Stevanović I, Jovanović M, Jelenković AV, Bokonjić D, Čolić M, Stojanović I, Ninković M. Efekat L-NAME na AlCl3-indukovanu toksičnost u mozgu pacova. in Acta veterinaria. 2009;59(2-3):133-146.
doi:10.2298/AVB0903133S
https://hdl.handle.net/21.15107/rcub_ibiss_475 .
Stevanović, Ivana, Jovanović, Marina, Jelenković, Ankica V., Bokonjić, D., Čolić, M., Stojanović, Ivana, Ninković, Milica, "Efekat L-NAME na AlCl3-indukovanu toksičnost u mozgu pacova" in Acta veterinaria, 59, no. 2-3 (2009):133-146,
https://doi.org/10.2298/AVB0903133S .,
https://hdl.handle.net/21.15107/rcub_ibiss_475 .
4
1
7

Opšta anestezija, operacija na mozgu pacova, azot oksid (NO) i slobodni radikali

Maksimović, M.; Jelenković, Ankica V.; Jovanović, Marina; Ninković, Milica; Bošković, Bogdan

(2005)

TY  - JOUR
AU  - Maksimović, M.
AU  - Jelenković, Ankica V.
AU  - Jovanović, Marina
AU  - Ninković, Milica
AU  - Bošković, Bogdan
PY  - 2005
PY  - 2005
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/471
AB  - It is expected that clinical recovery after surgically induced brain trauma is followed by molecular and biochemical restitution. Seven days after surgery, we investigated whether the plastic cannula implanted in the left brain ventricle of adult Wistar rats (n = 6-7), performed in pentobarbital anesthesia, could influence oxidative stress elements (superoxide anion and lipid peroxidation), as well as the antioxidative system (superoxide dismuthase-SOD). Also, we investigated whether nitric oxide (NO) is involved in these processes. Biochemical analyses was performed in the forebrain cortex, striatum and hippocampus. Clinical recovery was complete seven days after surgery. Thereafter, thirty minutes before decapitation, through the cannula, one group of rats received saline intracerebroventricularly (control group), and the treated group received Nω-nitro-L-arginine methyl ester (L-NAME). The third group was left unoperated and untreated. Before and after the treatments, rectal body temperature was measured. Compared to the untreated group the index of lipid peroxidation was increased in all three brain structures in the group that received saline (p<0.05 to 0.01). Application of L-NAME deteriorated it in the striatum and hippocampus (p<0.01 compared to the both other groups), but the value in the forebrain cortex was similar to the untreated group. Supeoxide anion level was decreased in the L-NAME treated group only in the striatum (p<0.01 compared to control and untreated groups), but SOD was increased in the hippocampus compared to the saline treated group (p<0.05). Seven days after brain surgery in pentobarbital anesthesia, recovery of biochemical disturbances was not parallel to clinical recovery. Long lasting biochemical changes are rather the consequence of brain injury than to pentobarbital anesthesia. In this experimental model, NO had protective effects, acting against lipid per oxidation in the striatum and hippocampus, but not in the forebrain cortex i. e. NO involvement in the free radical processes strongly depends on the observed brain region.
AB  - Posle hirurške intervencije na mozgu, očekuje se paralelizam između kliničkog, sa jedne strane, i molekulskog i biohemijskog oporavka, sa druge strane. Da bi to utvrdili, u tri moždane strukture (kora prednjeg mozga strijatum, hipokampus) odraslih Vistar pacova muškog pola, ispitivali smo promene pojedinih prooksidativnih i antioksdativnih parametara, nastalih posle usađivanja plastične kanile u bočnu komoru mozga, kroz koju su ubrizgavane ispitivane supstance (10pi). Kao opšti anestetik korišćen je pentobarbiton natrijum (0,045 g/kg). Eksperiment je nastavljen sedam dana posle operacije, kada su pacovi bili klinički potpuno oporavljeni. Pre ubrizgavanja 0,9% NaCI jednoj grupi (kontrola) i Nω-nitro-L-arginin metil estra (L-NAME, 10 mikrograma, rastvoren u 0,9% NaCI) drugoj grupi, kao i 30 minuta posle toga, merena je rektalna temperatura kod sve tri grupe pacova (treću su činili intaktni pacovi, 6-7 pacova u svakoj grupi). Porast indeksa lipidne peroksidacije u sve tri moždane strukture operisanih pacova koji su dobili NaCI bio je statistički značajan u odnosu na intaktnu grupu. Ubrizgavanjem L-NAME, ove promene su u strijatumu i hipokampusu postale statistički još izraženije u odnosu na grupu koja je dobila NaCI, dok je u kori prednjeg mozga registrovan sasvim slab porast u odnosu na intaktnu grupu. Istovremeno, ometanje sinteze NO bilo je praćeno statistički značajnim padom superoksidnog radikala u strijatumu u odnosu na obe grupe, i porastom superoksid dizmutaze u hipokampusu u odnosu na grupu koja je dobila NaCI. Telesna temperature je bila normalna kod svih pacova u oba vremena merenja. Dokazano je da ne postoji paralelizam između kliničkog i biohemijskog oporavka posle operacije na mozgu pacova, izvedene u opštoj anesteziji uz primenu pentobarbitona. To je ispoljeno pojačanom lipidnom peroksidacijom sedam dana posle operacije u sve tri ispitivane strukture mozga koji su dobili NaCI. Porast lipidne peroksidacije je najverovatnije posledica mehaničkog oštećenja izazvanog operacijom, pre nego same anestezije. U ovim procesima, NO ima značajnu regulatornu ulogu, pri čemu njegovi efekti nisu podjednako ispoljeni u svim delovima mozga. Njegova snažna antioksidativna svojstva registruju se u hipokampusu i strijatumu ali ne i u kori prednjeg mozga, što govori u prilog selektivne osetljivosti mozga.
T2  - Acta veterinaria
T1  - Opšta anestezija, operacija na mozgu pacova, azot oksid (NO) i slobodni radikali
T1  - Total anesthesia, rats brain surgery, nitric oxide (NO) and free radicals
IS  - 5-6
VL  - 55
SP  - 375
EP  - 383
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_471
ER  - 
@article{
author = "Maksimović, M. and Jelenković, Ankica V. and Jovanović, Marina and Ninković, Milica and Bošković, Bogdan",
year = "2005, 2005",
abstract = "It is expected that clinical recovery after surgically induced brain trauma is followed by molecular and biochemical restitution. Seven days after surgery, we investigated whether the plastic cannula implanted in the left brain ventricle of adult Wistar rats (n = 6-7), performed in pentobarbital anesthesia, could influence oxidative stress elements (superoxide anion and lipid peroxidation), as well as the antioxidative system (superoxide dismuthase-SOD). Also, we investigated whether nitric oxide (NO) is involved in these processes. Biochemical analyses was performed in the forebrain cortex, striatum and hippocampus. Clinical recovery was complete seven days after surgery. Thereafter, thirty minutes before decapitation, through the cannula, one group of rats received saline intracerebroventricularly (control group), and the treated group received Nω-nitro-L-arginine methyl ester (L-NAME). The third group was left unoperated and untreated. Before and after the treatments, rectal body temperature was measured. Compared to the untreated group the index of lipid peroxidation was increased in all three brain structures in the group that received saline (p<0.05 to 0.01). Application of L-NAME deteriorated it in the striatum and hippocampus (p<0.01 compared to the both other groups), but the value in the forebrain cortex was similar to the untreated group. Supeoxide anion level was decreased in the L-NAME treated group only in the striatum (p<0.01 compared to control and untreated groups), but SOD was increased in the hippocampus compared to the saline treated group (p<0.05). Seven days after brain surgery in pentobarbital anesthesia, recovery of biochemical disturbances was not parallel to clinical recovery. Long lasting biochemical changes are rather the consequence of brain injury than to pentobarbital anesthesia. In this experimental model, NO had protective effects, acting against lipid per oxidation in the striatum and hippocampus, but not in the forebrain cortex i. e. NO involvement in the free radical processes strongly depends on the observed brain region., Posle hirurške intervencije na mozgu, očekuje se paralelizam između kliničkog, sa jedne strane, i molekulskog i biohemijskog oporavka, sa druge strane. Da bi to utvrdili, u tri moždane strukture (kora prednjeg mozga strijatum, hipokampus) odraslih Vistar pacova muškog pola, ispitivali smo promene pojedinih prooksidativnih i antioksdativnih parametara, nastalih posle usađivanja plastične kanile u bočnu komoru mozga, kroz koju su ubrizgavane ispitivane supstance (10pi). Kao opšti anestetik korišćen je pentobarbiton natrijum (0,045 g/kg). Eksperiment je nastavljen sedam dana posle operacije, kada su pacovi bili klinički potpuno oporavljeni. Pre ubrizgavanja 0,9% NaCI jednoj grupi (kontrola) i Nω-nitro-L-arginin metil estra (L-NAME, 10 mikrograma, rastvoren u 0,9% NaCI) drugoj grupi, kao i 30 minuta posle toga, merena je rektalna temperatura kod sve tri grupe pacova (treću su činili intaktni pacovi, 6-7 pacova u svakoj grupi). Porast indeksa lipidne peroksidacije u sve tri moždane strukture operisanih pacova koji su dobili NaCI bio je statistički značajan u odnosu na intaktnu grupu. Ubrizgavanjem L-NAME, ove promene su u strijatumu i hipokampusu postale statistički još izraženije u odnosu na grupu koja je dobila NaCI, dok je u kori prednjeg mozga registrovan sasvim slab porast u odnosu na intaktnu grupu. Istovremeno, ometanje sinteze NO bilo je praćeno statistički značajnim padom superoksidnog radikala u strijatumu u odnosu na obe grupe, i porastom superoksid dizmutaze u hipokampusu u odnosu na grupu koja je dobila NaCI. Telesna temperature je bila normalna kod svih pacova u oba vremena merenja. Dokazano je da ne postoji paralelizam između kliničkog i biohemijskog oporavka posle operacije na mozgu pacova, izvedene u opštoj anesteziji uz primenu pentobarbitona. To je ispoljeno pojačanom lipidnom peroksidacijom sedam dana posle operacije u sve tri ispitivane strukture mozga koji su dobili NaCI. Porast lipidne peroksidacije je najverovatnije posledica mehaničkog oštećenja izazvanog operacijom, pre nego same anestezije. U ovim procesima, NO ima značajnu regulatornu ulogu, pri čemu njegovi efekti nisu podjednako ispoljeni u svim delovima mozga. Njegova snažna antioksidativna svojstva registruju se u hipokampusu i strijatumu ali ne i u kori prednjeg mozga, što govori u prilog selektivne osetljivosti mozga.",
journal = "Acta veterinaria",
title = "Opšta anestezija, operacija na mozgu pacova, azot oksid (NO) i slobodni radikali, Total anesthesia, rats brain surgery, nitric oxide (NO) and free radicals",
number = "5-6",
volume = "55",
pages = "375-383",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_471"
}
Maksimović, M., Jelenković, A. V., Jovanović, M., Ninković, M.,& Bošković, B.. (2005). Opšta anestezija, operacija na mozgu pacova, azot oksid (NO) i slobodni radikali. in Acta veterinaria, 55(5-6), 375-383.
https://hdl.handle.net/21.15107/rcub_ibiss_471
Maksimović M, Jelenković AV, Jovanović M, Ninković M, Bošković B. Opšta anestezija, operacija na mozgu pacova, azot oksid (NO) i slobodni radikali. in Acta veterinaria. 2005;55(5-6):375-383.
https://hdl.handle.net/21.15107/rcub_ibiss_471 .
Maksimović, M., Jelenković, Ankica V., Jovanović, Marina, Ninković, Milica, Bošković, Bogdan, "Opšta anestezija, operacija na mozgu pacova, azot oksid (NO) i slobodni radikali" in Acta veterinaria, 55, no. 5-6 (2005):375-383,
https://hdl.handle.net/21.15107/rcub_ibiss_471 .

Azot oksid (NO) i antagonist NMDA receptora u konvulzijama izazvanim pentilenetetrazolom

Jelenković, Ankica V.; Jovanović, Marina D.; Ninković, Milica; Maksimović, Milan; Bošković, Bogdan

(2003)

TY  - JOUR
AU  - Jelenković, Ankica V.
AU  - Jovanović, Marina D.
AU  - Ninković, Milica
AU  - Maksimović, Milan
AU  - Bošković, Bogdan
PY  - 2003
PY  - 2003
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/465
AB  - Controversy about proconvulsant and anticonvulsant nitric oxide (NO) effects and the place of oxidative stress in convulsions, are still a matter of research. We investigated the interaction between 2-amino-5-phosphonovaleric acid (APV), a competitive N-methyl-D-aspartate (NMDA) receptor antagonist and Nw-nitro-L-arginine methyl ester (L-NAME), a nonselective nitric oxide synthase (NOS) antagonist, in pentylenetetrazole (PTZ)-induced convulsions. Pentylenetetrazole was applied to adult Wistar rats intraperitoneally (ip) in a single dose of 80 mg/kg, and L-NAME (10 µg/10 µl) or APV (20 µg/10 µl) intracerebroventricularly (icv), 30 and 10 minutes before PTZ, respectively. In the same manner, another group received both antagonists. Control animals were given 0.9% saline. Nw-nitro-L-arginine methyl ester exerted a weak anticonvulsant effect, preventing generalized clonic (GCC) and clonic-tonic convulsions (CTC) in 17% of cases. With APV protection against GCC and CTC was 100%, forelimb dystonia (FLD) was decreased in 33% of cases, and time to onset of all convulsive patterns was prolonged (p<0.05 to 0.01). All effects of APV, except in CTC, were reversed by L-NAME applied prior to APV. In APV-PTZ treated animals, superoxide anion content was increased in the forebrain cortex, striatum and hippocampus, without an overwhelmed antioxidative superoxide dismutase (SOD) defense system in the other treatments. When the APV-PTZ group was treated with L-NAME, both SOD activity and superoxide anion content were additionally decreased indicating that the NOS-NO system was involved in the metabolism of superoxide anions. It is suggested that clinical and biochemical effects of NO strongly depend upon the pretreatment and might lead to a wrong impression of NO contradictory activity.
AB  - Kontroverzni nalazi o prokonvulzivnim kao i antikonvulzivnim efektima azot oksida (NO) i značaju oksidativnog stresa u konvulzijama, i dalje su predmet istraživanja. U konvulzijama izazvanim primenom pentilentetrazola (PTZ) ispitivali smo interakciju između 2-amino-5-fosfovalerinske kiseline (APV) kompetitivnog antagoniste N-metil-D-aspartat (NMDA) receptora i Nw-nitro-L-arginin metil estra (L-NAME), neselektivnog antagoniste azot oksid sintaze (NOS). Odraslim pacovima Wistar soja, PTZ je ubrizgavan intraperitonealno (ip) u jednoj dozi od 80 mg/kg. Ostale supstance, L-NAME (10 µg/10 µl) i APV (20 µg/10 µl), primenjivale su se intracerebroventrikularno (icv), i to L-NAME 30, a APV 10 minuta pre PTZ. Po istom vremenskom principu, jedna grupa dobila je oba antagonista, a kontrolna fiziološki rastvor NaCl. Nw-nitro-L-arginin metil estar ispoljio je slabo antikonvulzivno dejstvo, smanjujući incidenciju generalizovanih kloničnih (GCC) i klonično-toničnih konvulzija (CTC) za 17%. Za razliku od L-NAME, APV je sprečila nastanak GCC i CTC kod svih životinja (100%), a incidencija klonusa prednjih nogu (FLD) smanjena je za 33%. Istovremeno primenom APV produženo je vreme od aplikacije PTZ do pojave svih konvulzivnih tipova (p<.05 do 0.01). Primenom L-NAME pre APV, umanjeni su efekti APV, pri čemu je došlo do povećanja incidencije FLD i GCC za 16% odnosno 50%. U kori prednjeg mozga, strijatumu i hipokampusu, životinja koje su dobile APV+PTZ, došlo do povećanja koncentracije superoksidnog anjona. Aktivnost superoksid dizmutaze ne prati ovaj skok. Njen dodatni pad u grupi tretiranoj sa L-NAME pre APV+PTZ, ukazuje da je sistem NOS-NO uključen u metabolizam superoksidnog anjona. Dobijeni rezultati ukazuju da klinički i biohemijski efekti NO u velikoj meri zavise od prethodno primenjenih supstanci i promena izazvanih njima, što može da doprinose sticanju pogrešnog utiska o kontradiktornim dejstvima NO.
T2  - Acta veterinaria
T1  - Azot oksid (NO) i antagonist NMDA receptora u konvulzijama izazvanim pentilenetetrazolom
T1  - Nitric oxide (NO) and an NMDA receptor antagonist in pentylenetetrazole-induced convulsions
IS  - 2-3
VL  - 53
SP  - 103
EP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_465
ER  - 
@article{
author = "Jelenković, Ankica V. and Jovanović, Marina D. and Ninković, Milica and Maksimović, Milan and Bošković, Bogdan",
year = "2003, 2003",
abstract = "Controversy about proconvulsant and anticonvulsant nitric oxide (NO) effects and the place of oxidative stress in convulsions, are still a matter of research. We investigated the interaction between 2-amino-5-phosphonovaleric acid (APV), a competitive N-methyl-D-aspartate (NMDA) receptor antagonist and Nw-nitro-L-arginine methyl ester (L-NAME), a nonselective nitric oxide synthase (NOS) antagonist, in pentylenetetrazole (PTZ)-induced convulsions. Pentylenetetrazole was applied to adult Wistar rats intraperitoneally (ip) in a single dose of 80 mg/kg, and L-NAME (10 µg/10 µl) or APV (20 µg/10 µl) intracerebroventricularly (icv), 30 and 10 minutes before PTZ, respectively. In the same manner, another group received both antagonists. Control animals were given 0.9% saline. Nw-nitro-L-arginine methyl ester exerted a weak anticonvulsant effect, preventing generalized clonic (GCC) and clonic-tonic convulsions (CTC) in 17% of cases. With APV protection against GCC and CTC was 100%, forelimb dystonia (FLD) was decreased in 33% of cases, and time to onset of all convulsive patterns was prolonged (p<0.05 to 0.01). All effects of APV, except in CTC, were reversed by L-NAME applied prior to APV. In APV-PTZ treated animals, superoxide anion content was increased in the forebrain cortex, striatum and hippocampus, without an overwhelmed antioxidative superoxide dismutase (SOD) defense system in the other treatments. When the APV-PTZ group was treated with L-NAME, both SOD activity and superoxide anion content were additionally decreased indicating that the NOS-NO system was involved in the metabolism of superoxide anions. It is suggested that clinical and biochemical effects of NO strongly depend upon the pretreatment and might lead to a wrong impression of NO contradictory activity., Kontroverzni nalazi o prokonvulzivnim kao i antikonvulzivnim efektima azot oksida (NO) i značaju oksidativnog stresa u konvulzijama, i dalje su predmet istraživanja. U konvulzijama izazvanim primenom pentilentetrazola (PTZ) ispitivali smo interakciju između 2-amino-5-fosfovalerinske kiseline (APV) kompetitivnog antagoniste N-metil-D-aspartat (NMDA) receptora i Nw-nitro-L-arginin metil estra (L-NAME), neselektivnog antagoniste azot oksid sintaze (NOS). Odraslim pacovima Wistar soja, PTZ je ubrizgavan intraperitonealno (ip) u jednoj dozi od 80 mg/kg. Ostale supstance, L-NAME (10 µg/10 µl) i APV (20 µg/10 µl), primenjivale su se intracerebroventrikularno (icv), i to L-NAME 30, a APV 10 minuta pre PTZ. Po istom vremenskom principu, jedna grupa dobila je oba antagonista, a kontrolna fiziološki rastvor NaCl. Nw-nitro-L-arginin metil estar ispoljio je slabo antikonvulzivno dejstvo, smanjujući incidenciju generalizovanih kloničnih (GCC) i klonično-toničnih konvulzija (CTC) za 17%. Za razliku od L-NAME, APV je sprečila nastanak GCC i CTC kod svih životinja (100%), a incidencija klonusa prednjih nogu (FLD) smanjena je za 33%. Istovremeno primenom APV produženo je vreme od aplikacije PTZ do pojave svih konvulzivnih tipova (p<.05 do 0.01). Primenom L-NAME pre APV, umanjeni su efekti APV, pri čemu je došlo do povećanja incidencije FLD i GCC za 16% odnosno 50%. U kori prednjeg mozga, strijatumu i hipokampusu, životinja koje su dobile APV+PTZ, došlo do povećanja koncentracije superoksidnog anjona. Aktivnost superoksid dizmutaze ne prati ovaj skok. Njen dodatni pad u grupi tretiranoj sa L-NAME pre APV+PTZ, ukazuje da je sistem NOS-NO uključen u metabolizam superoksidnog anjona. Dobijeni rezultati ukazuju da klinički i biohemijski efekti NO u velikoj meri zavise od prethodno primenjenih supstanci i promena izazvanih njima, što može da doprinose sticanju pogrešnog utiska o kontradiktornim dejstvima NO.",
journal = "Acta veterinaria",
title = "Azot oksid (NO) i antagonist NMDA receptora u konvulzijama izazvanim pentilenetetrazolom, Nitric oxide (NO) and an NMDA receptor antagonist in pentylenetetrazole-induced convulsions",
number = "2-3",
volume = "53",
pages = "103-112",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_465"
}
Jelenković, A. V., Jovanović, M. D., Ninković, M., Maksimović, M.,& Bošković, B.. (2003). Azot oksid (NO) i antagonist NMDA receptora u konvulzijama izazvanim pentilenetetrazolom. in Acta veterinaria, 53(2-3), 103-112.
https://hdl.handle.net/21.15107/rcub_ibiss_465
Jelenković AV, Jovanović MD, Ninković M, Maksimović M, Bošković B. Azot oksid (NO) i antagonist NMDA receptora u konvulzijama izazvanim pentilenetetrazolom. in Acta veterinaria. 2003;53(2-3):103-112.
https://hdl.handle.net/21.15107/rcub_ibiss_465 .
Jelenković, Ankica V., Jovanović, Marina D., Ninković, Milica, Maksimović, Milan, Bošković, Bogdan, "Azot oksid (NO) i antagonist NMDA receptora u konvulzijama izazvanim pentilenetetrazolom" in Acta veterinaria, 53, no. 2-3 (2003):103-112,
https://hdl.handle.net/21.15107/rcub_ibiss_465 .

Efekat NGF na antioksidativnu odbranu u talamusu pacova nakon neurotoksičnog delovanja hinolinske kiseline

Ninković, Milica; Jovanović, Marina D.; Maličević, Živorad; Jelenković, Ankica V.; Đukić, Mirjana; Vasiljević, Ivana D.

(2003)

TY  - JOUR
AU  - Ninković, Milica
AU  - Jovanović, Marina D.
AU  - Maličević, Živorad
AU  - Jelenković, Ankica V.
AU  - Đukić, Mirjana
AU  - Vasiljević, Ivana D.
PY  - 2003
PY  - 2003
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/464
AB  - Quinolinic acid (QA) produces a pattern of selective cell loss in the striatum, that closely mimics that of Huntington's disease (HD). The aim of this study was to investigate the antioxidative status in the thalamus after intrastriatal application of QA and the influence of nerve growth factor (NGF) on such neurotoxicity. Wistar rats were treated intrastriatally (coordinates: 8.4A, 2.6L, 4.8V), using a stereotaxic instrument. The first group was treated with QA (150 nmol/l). The second group was treated with QA, followed by NGF (4.5 mg/kg b.w). The control group was treated with 0.9 % saline solution. Seven days after the treatment, we found decreased superoxide dismutase (SOD) activity in mitochondrial fractions of the striatum of both groups. In the thalamus, SOD activity showed no differences. The content of superoxide anion increased in the striatum of QA- treated animals. It was decreased in both structures in the group that was treated with QA and NGF. In the QA+ NGF-treated group, we found increased glutathione peroxidase (GSHPx) and GSH, compared to the group that was treated with QA only, but these values were lower than in the controls. Thus, NGF showed beneficial effects on the oxido-reduction status in the striatum, and also in the thalamus, a structure that is separated from but tightly connected with the striatum.
AB  - Hinolinska kiselina (HK) prouzrokuje takav selektivni gubitak ćelija u strijatumu, koji veoma dobro imitira onaj kod Huntingtonove bolesti. Cilj ovog istraživanja bio je da se ispita antioksidativni status u talamusu nakon aplikacije HK u strijatum i uticaj NGF na takvu neurotoksičnost. Wistar pacovi su tretirani intrastrijatno, pomoću stereotaksičnog instrumenta (koordinate: 8,4A, 2,6L, 4,8V). Prva grupa je bila tretirana HK (150 nmol/l). Druga grupa je bila tretirana HK, a nakon toga je dobila NGF (4.5 mg/ kg b.w). Kontrolna grupa je bila tretirana fiziološkim rastvorom. Sedam dana nakon tretmana, u mitohondrijskim frakcijama strijatuma, našli smo smanjenu aktivnost SOD u obema grupama. U talamusu, aktivnost SOD se nije promenila. Sadržaj superoksidnog anjona se povećao u strijatumu životinja koje su bile tretirane HK, a smanjio se u obema strukturama, u grupi koja je bila tretirana sa HK i NGF. U HK+ NGF-tretiranoj grupi, našli smo povećanu aktivnost GSHPx i GSH u odnosu na grupu koja je bila tretirana samo sa HK, ali su te vrednosti bile manje u odnosu na kontrolne. NGF je pokazao povoljne efekte na oksido-reduktivni status u strijatumu, ali takođe i u talamusu, strukturi koja je odvojena, ali veoma blisko povezana sa strijatumom.
T2  - Acta veterinaria
T1  - Efekat NGF na antioksidativnu odbranu u talamusu pacova nakon neurotoksičnog delovanja hinolinske kiseline
T1  - Antioxidative effect of nerve growth factor (NGF) in rat thalamus after quinolinic acid-induced neurotoxicity
IS  - 2-3
VL  - 53
SP  - 77
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_464
ER  - 
@article{
author = "Ninković, Milica and Jovanović, Marina D. and Maličević, Živorad and Jelenković, Ankica V. and Đukić, Mirjana and Vasiljević, Ivana D.",
year = "2003, 2003",
abstract = "Quinolinic acid (QA) produces a pattern of selective cell loss in the striatum, that closely mimics that of Huntington's disease (HD). The aim of this study was to investigate the antioxidative status in the thalamus after intrastriatal application of QA and the influence of nerve growth factor (NGF) on such neurotoxicity. Wistar rats were treated intrastriatally (coordinates: 8.4A, 2.6L, 4.8V), using a stereotaxic instrument. The first group was treated with QA (150 nmol/l). The second group was treated with QA, followed by NGF (4.5 mg/kg b.w). The control group was treated with 0.9 % saline solution. Seven days after the treatment, we found decreased superoxide dismutase (SOD) activity in mitochondrial fractions of the striatum of both groups. In the thalamus, SOD activity showed no differences. The content of superoxide anion increased in the striatum of QA- treated animals. It was decreased in both structures in the group that was treated with QA and NGF. In the QA+ NGF-treated group, we found increased glutathione peroxidase (GSHPx) and GSH, compared to the group that was treated with QA only, but these values were lower than in the controls. Thus, NGF showed beneficial effects on the oxido-reduction status in the striatum, and also in the thalamus, a structure that is separated from but tightly connected with the striatum., Hinolinska kiselina (HK) prouzrokuje takav selektivni gubitak ćelija u strijatumu, koji veoma dobro imitira onaj kod Huntingtonove bolesti. Cilj ovog istraživanja bio je da se ispita antioksidativni status u talamusu nakon aplikacije HK u strijatum i uticaj NGF na takvu neurotoksičnost. Wistar pacovi su tretirani intrastrijatno, pomoću stereotaksičnog instrumenta (koordinate: 8,4A, 2,6L, 4,8V). Prva grupa je bila tretirana HK (150 nmol/l). Druga grupa je bila tretirana HK, a nakon toga je dobila NGF (4.5 mg/ kg b.w). Kontrolna grupa je bila tretirana fiziološkim rastvorom. Sedam dana nakon tretmana, u mitohondrijskim frakcijama strijatuma, našli smo smanjenu aktivnost SOD u obema grupama. U talamusu, aktivnost SOD se nije promenila. Sadržaj superoksidnog anjona se povećao u strijatumu životinja koje su bile tretirane HK, a smanjio se u obema strukturama, u grupi koja je bila tretirana sa HK i NGF. U HK+ NGF-tretiranoj grupi, našli smo povećanu aktivnost GSHPx i GSH u odnosu na grupu koja je bila tretirana samo sa HK, ali su te vrednosti bile manje u odnosu na kontrolne. NGF je pokazao povoljne efekte na oksido-reduktivni status u strijatumu, ali takođe i u talamusu, strukturi koja je odvojena, ali veoma blisko povezana sa strijatumom.",
journal = "Acta veterinaria",
title = "Efekat NGF na antioksidativnu odbranu u talamusu pacova nakon neurotoksičnog delovanja hinolinske kiseline, Antioxidative effect of nerve growth factor (NGF) in rat thalamus after quinolinic acid-induced neurotoxicity",
number = "2-3",
volume = "53",
pages = "77-86",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_464"
}
Ninković, M., Jovanović, M. D., Maličević, Ž., Jelenković, A. V., Đukić, M.,& Vasiljević, I. D.. (2003). Efekat NGF na antioksidativnu odbranu u talamusu pacova nakon neurotoksičnog delovanja hinolinske kiseline. in Acta veterinaria, 53(2-3), 77-86.
https://hdl.handle.net/21.15107/rcub_ibiss_464
Ninković M, Jovanović MD, Maličević Ž, Jelenković AV, Đukić M, Vasiljević ID. Efekat NGF na antioksidativnu odbranu u talamusu pacova nakon neurotoksičnog delovanja hinolinske kiseline. in Acta veterinaria. 2003;53(2-3):77-86.
https://hdl.handle.net/21.15107/rcub_ibiss_464 .
Ninković, Milica, Jovanović, Marina D., Maličević, Živorad, Jelenković, Ankica V., Đukić, Mirjana, Vasiljević, Ivana D., "Efekat NGF na antioksidativnu odbranu u talamusu pacova nakon neurotoksičnog delovanja hinolinske kiseline" in Acta veterinaria, 53, no. 2-3 (2003):77-86,
https://hdl.handle.net/21.15107/rcub_ibiss_464 .