TY  - JOUR
AU  - Nikolić Kokić, Aleksandra
AU  - Tatalović, Nikola
AU  - Brkljačić, Jelena
AU  - Mijović, Milica
AU  - Nestorović, Vojkan
AU  - Mijušković, Ana
AU  - Oreščanin-Dušić, Zorana
AU  - Vidonja Uzelac, Teodora
AU  - Nikolić, Milan
AU  - Spasić, Snežana
AU  - Blagojević, Duško
AU  - Miljević, Čedo
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5557
AB  - Sexual dysfunction, as a noticeable adverse effect of atypical antipsychotic drugs (APDs)
for the treatment of schizophrenia, has not been investigated in detail. A study was undertaken
to investigate whether 28-day long treatment with clozapine, ziprasidone or sertindole (using a
recommended daily dose for atypical antipsychotic therapy), induced histopathological changes
both in rat testicles and prostate, changed the activity of the antioxidant defence system and altered blood testosterone and prolactin. Clozapine, ziprasidone and sertindole induced histopathological changes in rat testicular tissue, which could be attributed to a disturbed testicular antioxidant defence system in addition to an altered prolactin to testosterone ratio. None of the APD treatments induced histopathological changes in prostate. Our results demonstrate that APDs have the capacity to change both redox and endocrinological balance. One or both outcomes could underline testicular degeneration and disturbed spermatogenesis.
PB  - MDPI
T2  - International Journal of Molecular Sciences
T1  - Antipsychotic Drug-Mediated Adverse Effects on Rat Testicles May Be Caused by Altered Redox and Hormonal Homeostasis
VL  - 23
IS  - 22
SP  - 13698
DO  - 10.3390/ijms232213698
ER  - 

@article{
author = "Nikolić Kokić, Aleksandra and Tatalović, Nikola and Brkljačić, Jelena and Mijović, Milica and Nestorović, Vojkan and Mijušković, Ana and Oreščanin-Dušić, Zorana and Vidonja Uzelac, Teodora and Nikolić, Milan and Spasić, Snežana and Blagojević, Duško and Miljević, Čedo",
year = "2022",
abstract = "Sexual dysfunction, as a noticeable adverse effect of atypical antipsychotic drugs (APDs)
for the treatment of schizophrenia, has not been investigated in detail. A study was undertaken
to investigate whether 28-day long treatment with clozapine, ziprasidone or sertindole (using a
recommended daily dose for atypical antipsychotic therapy), induced histopathological changes
both in rat testicles and prostate, changed the activity of the antioxidant defence system and altered blood testosterone and prolactin. Clozapine, ziprasidone and sertindole induced histopathological changes in rat testicular tissue, which could be attributed to a disturbed testicular antioxidant defence system in addition to an altered prolactin to testosterone ratio. None of the APD treatments induced histopathological changes in prostate. Our results demonstrate that APDs have the capacity to change both redox and endocrinological balance. One or both outcomes could underline testicular degeneration and disturbed spermatogenesis.",
publisher = "MDPI",
journal = "International Journal of Molecular Sciences",
title = "Antipsychotic Drug-Mediated Adverse Effects on Rat Testicles May Be Caused by Altered Redox and Hormonal Homeostasis",
volume = "23",
number = "22",
pages = "13698",
doi = "10.3390/ijms232213698"
}

Nikolić Kokić, A., Tatalović, N., Brkljačić, J., Mijović, M., Nestorović, V., Mijušković, A., Oreščanin-Dušić, Z., Vidonja Uzelac, T., Nikolić, M., Spasić, S., Blagojević, D.,& Miljević, Č.. (2022). Antipsychotic Drug-Mediated Adverse Effects on Rat Testicles May Be Caused by Altered Redox and Hormonal Homeostasis. in International Journal of Molecular Sciences
MDPI., 23(22), 13698.
https://doi.org/10.3390/ijms232213698

Nikolić Kokić A, Tatalović N, Brkljačić J, Mijović M, Nestorović V, Mijušković A, Oreščanin-Dušić Z, Vidonja Uzelac T, Nikolić M, Spasić S, Blagojević D, Miljević Č. Antipsychotic Drug-Mediated Adverse Effects on Rat Testicles May Be Caused by Altered Redox and Hormonal Homeostasis. in International Journal of Molecular Sciences. 2022;23(22):13698.
doi:10.3390/ijms232213698 .

Nikolić Kokić, Aleksandra, Tatalović, Nikola, Brkljačić, Jelena, Mijović, Milica, Nestorović, Vojkan, Mijušković, Ana, Oreščanin-Dušić, Zorana, Vidonja Uzelac, Teodora, Nikolić, Milan, Spasić, Snežana, Blagojević, Duško, Miljević, Čedo, "Antipsychotic Drug-Mediated Adverse Effects on Rat Testicles May Be Caused by Altered Redox and Hormonal Homeostasis" in International Journal of Molecular Sciences, 23, no. 22 (2022):13698,
https://doi.org/10.3390/ijms232213698 . .

TY  - JOUR
AU  - Platanović Arizanović, Lena
AU  - Nikolić-Kokić, Aleksandra
AU  - Brkljačić, Jelena
AU  - Tatalović, Nikola
AU  - Miler, Marko
AU  - Oreščanin-Dušić, Zorana
AU  - Vidonja Uzelac, Teodora
AU  - Nikolić, Milan
AU  - Milošević, Verica
AU  - Blagojević, Duško
AU  - Spasić, Snežana
AU  - Miljević, Čedo
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3967
AB  - Chronic use of atypical antipsychotics may produce hepatic damage. Atypical antipsychotics, including clozapine, sertindole, and ziprasidone, are extensively metabolized by the liver and this process generates toxic-free radical metabolic intermediates which may contribute to liver damage. The aim of this study was to investigate whether clozapine, sertindole, or ziprasidone affected hepatic antioxidant defense enzymes which consequently led to disturbed redox homeostasis. The expression and activity of antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), catalase (CAT), and glutathione-S-transferases (GST) were measured in rat livers at doses corresponding to human antipsychotic therapy. Clozapine increased activity of SOD types 1 and 2, GR and GST, but reduced CAT activity. Sertindole elevated activities of both SODs. In ziprasidone-treated rats only decreased CAT activity was found. All three antipsychotics produced mild-to-moderate hepatic histopathological changes categorized as regenerative alterations. No apparent signs of immune cell infiltration, microvesicular or macrovesicular fatty change, or hepatocytes in mitosis were observed. In conclusion, a 4-week long daily treatment with clozapine, sertindole, or ziprasidone altered hepatic antioxidant enzyme activities and induced histopathological changes in liver. The most severe alterations were noted in clozapine-treated rats. Data indicate that redox disturbances may contribute to liver dysfunction after long-term atypical antipsychotic drug treatment.
PB  - Taylor & Francis
T2  - Journal of Toxicology and Environmental Health, Part A
T1  - Effects of several atypical antipsychotics closapine, sertindole or ziprasidone on hepatic antioxidant enzymes: Possible role in drug-induced liver dysfunction
VL  - 84
IS  - 4
SP  - 173
EP  - 182
DO  - 10.1080/15287394.2020.1844827
ER  - 

@article{
author = "Platanović Arizanović, Lena and Nikolić-Kokić, Aleksandra and Brkljačić, Jelena and Tatalović, Nikola and Miler, Marko and Oreščanin-Dušić, Zorana and Vidonja Uzelac, Teodora and Nikolić, Milan and Milošević, Verica and Blagojević, Duško and Spasić, Snežana and Miljević, Čedo",
year = "2021",
abstract = "Chronic use of atypical antipsychotics may produce hepatic damage. Atypical antipsychotics, including clozapine, sertindole, and ziprasidone, are extensively metabolized by the liver and this process generates toxic-free radical metabolic intermediates which may contribute to liver damage. The aim of this study was to investigate whether clozapine, sertindole, or ziprasidone affected hepatic antioxidant defense enzymes which consequently led to disturbed redox homeostasis. The expression and activity of antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), catalase (CAT), and glutathione-S-transferases (GST) were measured in rat livers at doses corresponding to human antipsychotic therapy. Clozapine increased activity of SOD types 1 and 2, GR and GST, but reduced CAT activity. Sertindole elevated activities of both SODs. In ziprasidone-treated rats only decreased CAT activity was found. All three antipsychotics produced mild-to-moderate hepatic histopathological changes categorized as regenerative alterations. No apparent signs of immune cell infiltration, microvesicular or macrovesicular fatty change, or hepatocytes in mitosis were observed. In conclusion, a 4-week long daily treatment with clozapine, sertindole, or ziprasidone altered hepatic antioxidant enzyme activities and induced histopathological changes in liver. The most severe alterations were noted in clozapine-treated rats. Data indicate that redox disturbances may contribute to liver dysfunction after long-term atypical antipsychotic drug treatment.",
publisher = "Taylor & Francis",
journal = "Journal of Toxicology and Environmental Health, Part A",
title = "Effects of several atypical antipsychotics closapine, sertindole or ziprasidone on hepatic antioxidant enzymes: Possible role in drug-induced liver dysfunction",
volume = "84",
number = "4",
pages = "173-182",
doi = "10.1080/15287394.2020.1844827"
}

Platanović Arizanović, L., Nikolić-Kokić, A., Brkljačić, J., Tatalović, N., Miler, M., Oreščanin-Dušić, Z., Vidonja Uzelac, T., Nikolić, M., Milošević, V., Blagojević, D., Spasić, S.,& Miljević, Č.. (2021). Effects of several atypical antipsychotics closapine, sertindole or ziprasidone on hepatic antioxidant enzymes: Possible role in drug-induced liver dysfunction. in Journal of Toxicology and Environmental Health, Part A
Taylor & Francis., 84(4), 173-182.
https://doi.org/10.1080/15287394.2020.1844827

Platanović Arizanović L, Nikolić-Kokić A, Brkljačić J, Tatalović N, Miler M, Oreščanin-Dušić Z, Vidonja Uzelac T, Nikolić M, Milošević V, Blagojević D, Spasić S, Miljević Č. Effects of several atypical antipsychotics closapine, sertindole or ziprasidone on hepatic antioxidant enzymes: Possible role in drug-induced liver dysfunction. in Journal of Toxicology and Environmental Health, Part A. 2021;84(4):173-182.
doi:10.1080/15287394.2020.1844827 .

Platanović Arizanović, Lena, Nikolić-Kokić, Aleksandra, Brkljačić, Jelena, Tatalović, Nikola, Miler, Marko, Oreščanin-Dušić, Zorana, Vidonja Uzelac, Teodora, Nikolić, Milan, Milošević, Verica, Blagojević, Duško, Spasić, Snežana, Miljević, Čedo, "Effects of several atypical antipsychotics closapine, sertindole or ziprasidone on hepatic antioxidant enzymes: Possible role in drug-induced liver dysfunction" in Journal of Toxicology and Environmental Health, Part A, 84, no. 4 (2021):173-182,
https://doi.org/10.1080/15287394.2020.1844827 . .

TY  - JOUR
AU  - Spasić, Snežana
AU  - Nikolić-Kokić, Aleksandra
AU  - Miletić, Srđan
AU  - Oreščanin-Dušić, Zorana
AU  - Spasić, Mihajlo
AU  - Blagojević, Duško
AU  - Stević, Zorica
PY  - 2020
UR  - https://www.eurekaselect.com/179582/article
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3966
AB  - Radicava™ (Edaravone) was approved the Food and Drug Administration (FDA) as a new treatment for amyotrophic lateral sclerosis (ALS). Edaravone is a synthetic antioxidant that specifically targets oxidative damage interacting with lipid radicals in the cell. In ALS disease the multiple cell types are involved in devastating loss of motor neurons. Mutations and biochemical changes in various cell types jointly contribute to motor neuron death, disease onset, and disease progression. The overall mechanism of neurodegeneration in ALS is still not completely understood. Dying motor neurons have been reported to exhibit features of apoptosis. However, non-apoptotic features of dying motor neurons have also been reported such as ferroptosis. The role of Edaravone in the prevention of ferroptosis in parallel with other therapeutic approaches to ALS therapy is discussed.
PB  - Bentham Science
T2  - Current Drug Targets
T1  - Edaravone May Prevent Ferroptosis in ALS
VL  - 21
IS  - 8
SP  - 776
EP  - 780
DO  - 10.2174/1389450121666200220123305
ER  - 

@article{
author = "Spasić, Snežana and Nikolić-Kokić, Aleksandra and Miletić, Srđan and Oreščanin-Dušić, Zorana and Spasić, Mihajlo and Blagojević, Duško and Stević, Zorica",
year = "2020",
abstract = "Radicava™ (Edaravone) was approved the Food and Drug Administration (FDA) as a new treatment for amyotrophic lateral sclerosis (ALS). Edaravone is a synthetic antioxidant that specifically targets oxidative damage interacting with lipid radicals in the cell. In ALS disease the multiple cell types are involved in devastating loss of motor neurons. Mutations and biochemical changes in various cell types jointly contribute to motor neuron death, disease onset, and disease progression. The overall mechanism of neurodegeneration in ALS is still not completely understood. Dying motor neurons have been reported to exhibit features of apoptosis. However, non-apoptotic features of dying motor neurons have also been reported such as ferroptosis. The role of Edaravone in the prevention of ferroptosis in parallel with other therapeutic approaches to ALS therapy is discussed.",
publisher = "Bentham Science",
journal = "Current Drug Targets",
title = "Edaravone May Prevent Ferroptosis in ALS",
volume = "21",
number = "8",
pages = "776-780",
doi = "10.2174/1389450121666200220123305"
}

Spasić, S., Nikolić-Kokić, A., Miletić, S., Oreščanin-Dušić, Z., Spasić, M., Blagojević, D.,& Stević, Z.. (2020). Edaravone May Prevent Ferroptosis in ALS. in Current Drug Targets
Bentham Science., 21(8), 776-780.
https://doi.org/10.2174/1389450121666200220123305

Spasić S, Nikolić-Kokić A, Miletić S, Oreščanin-Dušić Z, Spasić M, Blagojević D, Stević Z. Edaravone May Prevent Ferroptosis in ALS. in Current Drug Targets. 2020;21(8):776-780.
doi:10.2174/1389450121666200220123305 .

Spasić, Snežana, Nikolić-Kokić, Aleksandra, Miletić, Srđan, Oreščanin-Dušić, Zorana, Spasić, Mihajlo, Blagojević, Duško, Stević, Zorica, "Edaravone May Prevent Ferroptosis in ALS" in Current Drug Targets, 21, no. 8 (2020):776-780,
https://doi.org/10.2174/1389450121666200220123305 . .

TY  - JOUR
AU  - Spasojević, Ivan
AU  - Mojović, Miloš
AU  - Blagojević, Duško
AU  - Spasić, Snežana
AU  - Jones, David
AU  - Nikolić-Kokić, Aleksandra
AU  - Spasić, Mihajlo
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3937
AB  - The hydroxyl radical (radical dotOH) has detrimental biological activity due to its very high reactivity. Our experiments were designed to determine the effects of equimolar concentrations of glucose, fructose and mannitol and three phosphorylated forms of fructose (fructose-1-phosphate (F1P); fructose-6-phosphate (F6P); and fructose-1,6-bis(phosphate) (F16BP)) on radical dotOH radical production via the Fenton reaction. EPR spectroscopy using spin-trap DEPMPO was applied to detect radical production. We found that the percentage inhibition of radical dotOH radical formation decreased in the order F16BP > F1P > F6P > fructose > mannitol = glucose. As ketoses can sequester redox-active iron thus preventing the Fenton reaction, the Haber–Weiss-like system was also employed to generate radical dotOH, so that the effect of iron sequestration could be distinguished from direct radical dotOH radical scavenging. In the latter system, the rank order of radical dotOH scavenging activity was F16BP > F1P > F6P > fructose = mannitol = glucose. Our results clearly demonstrate that intracellular phosphorylated forms of fructose have more scavenging properties than fructose or glucose, leading us to conclude that the acute administration of fructose could overcome the body’s reaction to exogenous antioxidants during appropriate therapy in certain pathophysiological conditions related to oxidative stress, such as sepsis, neurodegenerative diseases, atherosclerosis, malignancy, and some complications of pregnancy.
PB  - Elsevier
T2  - Carbohydrate Research
T1  - Relevance of the capacity of phosphorylated fructose to scavenge the hydroxyl radical
VL  - 344
IS  - 1
SP  - 80
EP  - 84
DO  - 10.1016/j.carres.2008.09.025
ER  - 

@article{
author = "Spasojević, Ivan and Mojović, Miloš and Blagojević, Duško and Spasić, Snežana and Jones, David and Nikolić-Kokić, Aleksandra and Spasić, Mihajlo",
year = "2009",
abstract = "The hydroxyl radical (radical dotOH) has detrimental biological activity due to its very high reactivity. Our experiments were designed to determine the effects of equimolar concentrations of glucose, fructose and mannitol and three phosphorylated forms of fructose (fructose-1-phosphate (F1P); fructose-6-phosphate (F6P); and fructose-1,6-bis(phosphate) (F16BP)) on radical dotOH radical production via the Fenton reaction. EPR spectroscopy using spin-trap DEPMPO was applied to detect radical production. We found that the percentage inhibition of radical dotOH radical formation decreased in the order F16BP > F1P > F6P > fructose > mannitol = glucose. As ketoses can sequester redox-active iron thus preventing the Fenton reaction, the Haber–Weiss-like system was also employed to generate radical dotOH, so that the effect of iron sequestration could be distinguished from direct radical dotOH radical scavenging. In the latter system, the rank order of radical dotOH scavenging activity was F16BP > F1P > F6P > fructose = mannitol = glucose. Our results clearly demonstrate that intracellular phosphorylated forms of fructose have more scavenging properties than fructose or glucose, leading us to conclude that the acute administration of fructose could overcome the body’s reaction to exogenous antioxidants during appropriate therapy in certain pathophysiological conditions related to oxidative stress, such as sepsis, neurodegenerative diseases, atherosclerosis, malignancy, and some complications of pregnancy.",
publisher = "Elsevier",
journal = "Carbohydrate Research",
title = "Relevance of the capacity of phosphorylated fructose to scavenge the hydroxyl radical",
volume = "344",
number = "1",
pages = "80-84",
doi = "10.1016/j.carres.2008.09.025"
}

Spasojević, I., Mojović, M., Blagojević, D., Spasić, S., Jones, D., Nikolić-Kokić, A.,& Spasić, M.. (2009). Relevance of the capacity of phosphorylated fructose to scavenge the hydroxyl radical. in Carbohydrate Research
Elsevier., 344(1), 80-84.
https://doi.org/10.1016/j.carres.2008.09.025

Spasojević I, Mojović M, Blagojević D, Spasić S, Jones D, Nikolić-Kokić A, Spasić M. Relevance of the capacity of phosphorylated fructose to scavenge the hydroxyl radical. in Carbohydrate Research. 2009;344(1):80-84.
doi:10.1016/j.carres.2008.09.025 .

Spasojević, Ivan, Mojović, Miloš, Blagojević, Duško, Spasić, Snežana, Jones, David, Nikolić-Kokić, Aleksandra, Spasić, Mihajlo, "Relevance of the capacity of phosphorylated fructose to scavenge the hydroxyl radical" in Carbohydrate Research, 344, no. 1 (2009):80-84,
https://doi.org/10.1016/j.carres.2008.09.025 . .

TY  - JOUR
AU  - Nikolić, Milan
AU  - Nikolić -Kokić, Aleksandra
AU  - Stanić, Dragana
AU  - Blagojević, Duško
AU  - Vranić, Danijela
AU  - Jones, David R.
AU  - Niketić, Vesna
AU  - Spasić, Mihajlo B.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4219
AB  - U prethodnom radu pokazano je da lipidna frakcija koja se javlja u hemolizatu
zdravih ljudi predstavlja holesterol (asosovan sa fosfolipidima) čvrsto vezan za hemoglobin
(Hb-Ch). U ovom radu ispitivan je uticaj Hb-Ch na anti-oksidativni enzimski
sistem u humanim eritrocitima. Određena je aktivnost superoksid-dizmutaze, katalaze,
glutation-peroksidaze i glutation-reduktaze, kao i sadržaj met-hemoglobina (metHb)
u eritrocitima 60 qudi, podeqenih u dve grupe na osnovu količine Hb-Ch. Rezultati
pokazuju da količina prisutnog Hb-Ch ne menja aktivnost merenih enzima, niti nivo
metHb.Međutim, u grupi ispitanika sa povećanim sadržajem Hb-Ch zapažene su korelativne
promene u delu anti-oksidativnog enzimskog sistema povezanog sa glutationom.
U istoj grupi detektovane su i veće koncentracije ukupnog holesterola i triglicerida
u plazmi, što zajedno ukazuje na povećani peroksidativni pritisak iz plazme. Ovi
rezultati ukazuju da odbrambeni anti-oksidativni enzimski sistem u humanim eritrocitima
prilagođava svoju organizaciju prema zahtevima iz svog okruženja.
AB  - In a previous study, it was shown that the lipid fraction, which is occasionally observed in red blood cell hemolysates, represents cholesterol (Ch) associated with phospholipid firmly bound to haemoglobin (termed Hb-Ch). The current study was conducted to investigate whether Hb-Ch could affect the primary anti-oxidant enzyme defence system in human erythrocytes. Sixty healthy volunteers were used for the current study. Group 1 consisted of 28 subjects without or with a low level of Hb-Ch. Group 2 comprised 32 subjects with a considerably higher level of Hb-Ch. The activities of erythrocyte superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase, as well as the content of methaemoglobin (metHb) were measured in both groups. The results indicated that the amount of Hb-Ch neither influenced the activities of the erythrocyte anti-oxidant enzymes nor altered the level of metHb. However, a higher amount of Hb-Ch changed the correlations in the part of the anti-oxidant defence system relating to glutathione, suggesting increased peroxidative pressure from plasma lipids. Group 2 also had significantly increased concentrations of total plasma Ch and triglycerides. Together, these facts are strong indications that the anti-oxidant defence system in human erythrocytes finely retunes its composition according to plasma oxidative demands.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?
T1  - Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima
VL  - 72
IS  - 4
SP  - 339
EP  - 345
DO  - 10.2298/JSC0704339N
ER  - 

@article{
author = "Nikolić, Milan and Nikolić -Kokić, Aleksandra and Stanić, Dragana and Blagojević, Duško and Vranić, Danijela and Jones, David R. and Niketić, Vesna and Spasić, Mihajlo B.",
year = "2007",
abstract = "U prethodnom radu pokazano je da lipidna frakcija koja se javlja u hemolizatu
zdravih ljudi predstavlja holesterol (asosovan sa fosfolipidima) čvrsto vezan za hemoglobin
(Hb-Ch). U ovom radu ispitivan je uticaj Hb-Ch na anti-oksidativni enzimski
sistem u humanim eritrocitima. Određena je aktivnost superoksid-dizmutaze, katalaze,
glutation-peroksidaze i glutation-reduktaze, kao i sadržaj met-hemoglobina (metHb)
u eritrocitima 60 qudi, podeqenih u dve grupe na osnovu količine Hb-Ch. Rezultati
pokazuju da količina prisutnog Hb-Ch ne menja aktivnost merenih enzima, niti nivo
metHb.Međutim, u grupi ispitanika sa povećanim sadržajem Hb-Ch zapažene su korelativne
promene u delu anti-oksidativnog enzimskog sistema povezanog sa glutationom.
U istoj grupi detektovane su i veće koncentracije ukupnog holesterola i triglicerida
u plazmi, što zajedno ukazuje na povećani peroksidativni pritisak iz plazme. Ovi
rezultati ukazuju da odbrambeni anti-oksidativni enzimski sistem u humanim eritrocitima
prilagođava svoju organizaciju prema zahtevima iz svog okruženja., In a previous study, it was shown that the lipid fraction, which is occasionally observed in red blood cell hemolysates, represents cholesterol (Ch) associated with phospholipid firmly bound to haemoglobin (termed Hb-Ch). The current study was conducted to investigate whether Hb-Ch could affect the primary anti-oxidant enzyme defence system in human erythrocytes. Sixty healthy volunteers were used for the current study. Group 1 consisted of 28 subjects without or with a low level of Hb-Ch. Group 2 comprised 32 subjects with a considerably higher level of Hb-Ch. The activities of erythrocyte superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase, as well as the content of methaemoglobin (metHb) were measured in both groups. The results indicated that the amount of Hb-Ch neither influenced the activities of the erythrocyte anti-oxidant enzymes nor altered the level of metHb. However, a higher amount of Hb-Ch changed the correlations in the part of the anti-oxidant defence system relating to glutathione, suggesting increased peroxidative pressure from plasma lipids. Group 2 also had significantly increased concentrations of total plasma Ch and triglycerides. Together, these facts are strong indications that the anti-oxidant defence system in human erythrocytes finely retunes its composition according to plasma oxidative demands.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?, Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima",
volume = "72",
number = "4",
pages = "339-345",
doi = "10.2298/JSC0704339N"
}

Nikolić, M., Nikolić -Kokić, A., Stanić, D., Blagojević, D., Vranić, D., Jones, D. R., Niketić, V.,& Spasić, M. B.. (2007). Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 72(4), 339-345.
https://doi.org/10.2298/JSC0704339N

Nikolić M, Nikolić -Kokić A, Stanić D, Blagojević D, Vranić D, Jones DR, Niketić V, Spasić MB. Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?. in Journal of the Serbian Chemical Society. 2007;72(4):339-345.
doi:10.2298/JSC0704339N .

Nikolić, Milan, Nikolić -Kokić, Aleksandra, Stanić, Dragana, Blagojević, Duško, Vranić, Danijela, Jones, David R., Niketić, Vesna, Spasić, Mihajlo B., "Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?" in Journal of the Serbian Chemical Society, 72, no. 4 (2007):339-345,
https://doi.org/10.2298/JSC0704339N . .

TY  - JOUR
AU  - Nikolić-Kokić, Aleksandra
AU  - Stević, Zorica
AU  - Stojanović, Srđan
AU  - Blagojević, Duško
AU  - Jones, David
AU  - Pavlović, Sanja
AU  - Nikrtić, Vesna
AU  - Apostolski, Slobodan
AU  - Spasić, Mihajlo
PY  - 2005
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3868
AB  - Recent findings indicate that nitric oxide (NO•) over-production might be an important factor in thepathogenesis  of  sporadic  amyotrophic  lateral  sclerosis  (SALS).  We  measured  significantly  higherconcentrations   of   uric   acid   and   thiol   group-containing   molecules   (R–SH   groups)   in   thecerebrospinal  fluid  (CSF)  from  SALS  patients  compared  to  controls.  The  above  factors,  togetherwith a slightly increased free iron concentration found in the CSF, favour conditions necessary forthe  formation  of  the  dinitrosyl  iron  complex,  capable  of  NO•bio-transformation.  Thus,  weperformed ex vivosaturation of CSF (from both SALS patients and controls) with NO•. A decreasein the level of R–SH was found. This was more pronounced in the CSF from SALS patients. In theCSF from SALS patients the production of nitrite and hydroxylamine was greater than that observedin the CSF from controls. Moreover, we also found increased Cu,Zn-SOD activity in the CSF fromSALS  patients  (when  compared  to  control  subjects)  but  no  activity  corresponding  to  Mn-SOD  inany CSF samples. As Cu,Zn-SOD can react with nitroxyl forming NO•, the conditions for a closed,but continuous, loop of NO•biotransformation are present in the CSF of ALS patients.
PB  - Maney Publishing
T2  - Redox Report
T1  - Biotransformation of nitric oxide in the cerebrospinal fluid of amyotrophic lateral sclerosis patients
VL  - 10
IS  - 5
SP  - 265
EP  - 270
DO  - 10.1179/135100005X70242
ER  - 

@article{
author = "Nikolić-Kokić, Aleksandra and Stević, Zorica and Stojanović, Srđan and Blagojević, Duško and Jones, David and Pavlović, Sanja and Nikrtić, Vesna and Apostolski, Slobodan and Spasić, Mihajlo",
year = "2005",
abstract = "Recent findings indicate that nitric oxide (NO•) over-production might be an important factor in thepathogenesis  of  sporadic  amyotrophic  lateral  sclerosis  (SALS).  We  measured  significantly  higherconcentrations   of   uric   acid   and   thiol   group-containing   molecules   (R–SH   groups)   in   thecerebrospinal  fluid  (CSF)  from  SALS  patients  compared  to  controls.  The  above  factors,  togetherwith a slightly increased free iron concentration found in the CSF, favour conditions necessary forthe  formation  of  the  dinitrosyl  iron  complex,  capable  of  NO•bio-transformation.  Thus,  weperformed ex vivosaturation of CSF (from both SALS patients and controls) with NO•. A decreasein the level of R–SH was found. This was more pronounced in the CSF from SALS patients. In theCSF from SALS patients the production of nitrite and hydroxylamine was greater than that observedin the CSF from controls. Moreover, we also found increased Cu,Zn-SOD activity in the CSF fromSALS  patients  (when  compared  to  control  subjects)  but  no  activity  corresponding  to  Mn-SOD  inany CSF samples. As Cu,Zn-SOD can react with nitroxyl forming NO•, the conditions for a closed,but continuous, loop of NO•biotransformation are present in the CSF of ALS patients.",
publisher = "Maney Publishing",
journal = "Redox Report",
title = "Biotransformation of nitric oxide in the cerebrospinal fluid of amyotrophic lateral sclerosis patients",
volume = "10",
number = "5",
pages = "265-270",
doi = "10.1179/135100005X70242"
}

Nikolić-Kokić, A., Stević, Z., Stojanović, S., Blagojević, D., Jones, D., Pavlović, S., Nikrtić, V., Apostolski, S.,& Spasić, M.. (2005). Biotransformation of nitric oxide in the cerebrospinal fluid of amyotrophic lateral sclerosis patients. in Redox Report
Maney Publishing., 10(5), 265-270.
https://doi.org/10.1179/135100005X70242

Nikolić-Kokić A, Stević Z, Stojanović S, Blagojević D, Jones D, Pavlović S, Nikrtić V, Apostolski S, Spasić M. Biotransformation of nitric oxide in the cerebrospinal fluid of amyotrophic lateral sclerosis patients. in Redox Report. 2005;10(5):265-270.
doi:10.1179/135100005X70242 .

Nikolić-Kokić, Aleksandra, Stević, Zorica, Stojanović, Srđan, Blagojević, Duško, Jones, David, Pavlović, Sanja, Nikrtić, Vesna, Apostolski, Slobodan, Spasić, Mihajlo, "Biotransformation of nitric oxide in the cerebrospinal fluid of amyotrophic lateral sclerosis patients" in Redox Report, 10, no. 5 (2005):265-270,
https://doi.org/10.1179/135100005X70242 . .

TY  - CONF
AU  - Marinković, Zorica
AU  - Nikolić, Aleksandra
AU  - Stojanović, Srđan
AU  - Blagojević, Duško
AU  - Niketić, Vesna
AU  - Radunović, A,
AU  - Apostolski, S.
AU  - Spasić, Mihajlo
PY  - 1997
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6540
AB  - The aim of this study was to investigate the content of -SU groups and SOD activity m cerebrospinal fluid (CSF) both in ALS patients and control group, as well as to perform an in vitro lest for CSF NO binding capacity, in same examines. Nitric oxide for in vitro testing was provided by adding 40% sodium nitrite solution in the solution of 10% ferrous sulfate in 50% sulfuric acid. Our results showed significant increase -SH content in CSF of ALS patients in comparison with control group (114 ± 29 nmol -SH/mg proteins in CSF of ALS patients compared with 37 ± 12 nmol - SI Lmg proteins in CSF of controls)(p<0.05). After in vitro saturation of CSF with NO, we noted (he significant decrease of -SH content which was not found in control group. We also found that SOD activity in CSF of ALS patients was higher than in control group (16.1 ±2.8 U7 mg CSF proteins of ALS patients compared to 10.2 ± 2 U/ mg CSF proteins of control group). These results may confirm an increased ROS production in ALS patients without increased NO production.
C3  - 8th International Symposium on ALS/MND, Glasgow
T1  - Content of NO reactive -SH and Superoxide dismutase activity in CSF of ALS patients
UR  - https://hdl.handle.net/21.15107/rcub_cer_6540
ER  - 

@conference{
author = "Marinković, Zorica and Nikolić, Aleksandra and Stojanović, Srđan and Blagojević, Duško and Niketić, Vesna and Radunović, A, and Apostolski, S. and Spasić, Mihajlo",
year = "1997",
abstract = "The aim of this study was to investigate the content of -SU groups and SOD activity m cerebrospinal fluid (CSF) both in ALS patients and control group, as well as to perform an in vitro lest for CSF NO binding capacity, in same examines. Nitric oxide for in vitro testing was provided by adding 40% sodium nitrite solution in the solution of 10% ferrous sulfate in 50% sulfuric acid. Our results showed significant increase -SH content in CSF of ALS patients in comparison with control group (114 ± 29 nmol -SH/mg proteins in CSF of ALS patients compared with 37 ± 12 nmol - SI Lmg proteins in CSF of controls)(p<0.05). After in vitro saturation of CSF with NO, we noted (he significant decrease of -SH content which was not found in control group. We also found that SOD activity in CSF of ALS patients was higher than in control group (16.1 ±2.8 U7 mg CSF proteins of ALS patients compared to 10.2 ± 2 U/ mg CSF proteins of control group). These results may confirm an increased ROS production in ALS patients without increased NO production.",
journal = "8th International Symposium on ALS/MND, Glasgow",
title = "Content of NO reactive -SH and Superoxide dismutase activity in CSF of ALS patients",
url = "https://hdl.handle.net/21.15107/rcub_cer_6540"
}

Marinković, Z., Nikolić, A., Stojanović, S., Blagojević, D., Niketić, V., Radunović, A., Apostolski, S.,& Spasić, M.. (1997). Content of NO reactive -SH and Superoxide dismutase activity in CSF of ALS patients. in 8th International Symposium on ALS/MND, Glasgow.
https://hdl.handle.net/21.15107/rcub_cer_6540

Marinković Z, Nikolić A, Stojanović S, Blagojević D, Niketić V, Radunović A, Apostolski S, Spasić M. Content of NO reactive -SH and Superoxide dismutase activity in CSF of ALS patients. in 8th International Symposium on ALS/MND, Glasgow. 1997;.
https://hdl.handle.net/21.15107/rcub_cer_6540 .

Marinković, Zorica, Nikolić, Aleksandra, Stojanović, Srđan, Blagojević, Duško, Niketić, Vesna, Radunović, A,, Apostolski, S., Spasić, Mihajlo, "Content of NO reactive -SH and Superoxide dismutase activity in CSF of ALS patients" in 8th International Symposium on ALS/MND, Glasgow (1997),
https://hdl.handle.net/21.15107/rcub_cer_6540 .