TY  - JOUR
AU  - Nikolić, Milan
AU  - Blagojević, Duško
AU  - Nikolić-Kokić, Aleksandra
AU  - Stanić, Dragana
AU  - Vranić, Danijela
AU  - Jones, David R.
AU  - Niketić, Vesna
AU  - Spasić, Mihajlo
PY  - 2007
PY  - 2007
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/552
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. .
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 ljudi, podeljenih 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. .
T2  - Journal of the Serbian Chemical Society
T1  - Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima?
T1  - Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?
IS  - 4
VL  - 72
SP  - 339
EP  - 345
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_552
ER  - 

@article{
author = "Nikolić, Milan and Blagojević, Duško and Nikolić-Kokić, Aleksandra and Stanić, Dragana and Vranić, Danijela and Jones, David R. and Niketić, Vesna and Spasić, Mihajlo",
year = "2007, 2007",
abstract = "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. ., 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 ljudi, podeljenih 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. .",
journal = "Journal of the Serbian Chemical Society",
title = "Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima?, Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes?",
number = "4",
volume = "72",
pages = "339-345",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_552"
}

Nikolić, M., Blagojević, D., Nikolić-Kokić, A., Stanić, D., Vranić, D., Jones, D. R., Niketić, V.,& Spasić, M.. (2007). Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima?. in Journal of the Serbian Chemical Society, 72(4), 339-345.
https://hdl.handle.net/21.15107/rcub_ibiss_552

Nikolić M, Blagojević D, Nikolić-Kokić A, Stanić D, Vranić D, Jones DR, Niketić V, Spasić M. Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima?. in Journal of the Serbian Chemical Society. 2007;72(4):339-345.
https://hdl.handle.net/21.15107/rcub_ibiss_552 .

Nikolić, Milan, Blagojević, Duško, Nikolić-Kokić, Aleksandra, Stanić, Dragana, Vranić, Danijela, Jones, David R., Niketić, Vesna, Spasić, Mihajlo, "Da li holesterol vezan za hemoglobin utiče na anti-oksidativni enzimski sistem u humanim eritrocitima?" in Journal of the Serbian Chemical Society, 72, no. 4 (2007):339-345,
https://hdl.handle.net/21.15107/rcub_ibiss_552 .