TY  - JOUR
AU  - Jeremić, Ivica
AU  - Đurić, Olivera
AU  - Nikolić, Milos
AU  - Vlajnić, Marina
AU  - Nikolić, Aleksandra
AU  - Radojković, Dragica
AU  - Bonaci-Nikolić, Branka
PY  - 2019
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1257
AB  - Neutrophil extracellular traps (NETs) are the main source of autoantigens in systemic lupus erythematosus (SLE). The aim of this study was to evaluate the clinical importance of NETs-associated markers in SLE. We compared NETs-associated markers in SLE patients (n = 111) with healthy controls (n = 50). Moreover, in 35 patients with drug-naive SLE (n = 35), we investigated correlation between NETs-associated markers [DNase I concentration, myeloperoxidase (MPO) activity, anti-MPO antibodies, cell-free DNA (cfDNA), NETolytic activity] with serological parameters [anti-dsDNA antibodies, C3, C4 and B-cell activating factor (BAFF) levels] and disease activity measured by modified SLE Disease Activity Index (M-SLEDAI-2K). In comparison with healthy controls, SLE patients had higher cfDNA, MPO activity, anti-MPO antibodies (p  lt  0.001), BAFF and DNase I concentration (p  lt  0.01). Contrary, NETolytic activity was lower in SLE patients (p  lt  0.05), despite higher concentration of DNase I. MPO activity and cfDNA levels showed correlation with DNase I concentration (p  lt  0.001, p  lt  0.01, respectively). BAFF levels correlated with cfDNA, DNase I concentration and MPO activity (p  lt  0.05). Anti-dsDNA antibodies showed correlation with MPO activity (p  lt  0.01), cfDNA and BAFF levels (p  lt  0.001). Anti-dsDNA and C3 levels were independent predictors of M-SLEDAI-2K in multivariate analysis (p  lt  0.01). We demonstrated that sera of SLE patients have decreased NETolytic activity, leading to increased levels of various NETs-associated markers, which correlate with anti-dsDNA antibodies in drug-naive SLE. We showed that BAFF participates in a complex relationship between NETosis and anti-dsDNA antibodies production. These findings have important implications for a better understanding of SLE pathogenesis and development of therapy that inhibits NETs persistence and disease progression.
PB  - Springer Heidelberg, Heidelberg
T2  - Rheumatology International
T1  - Neutrophil extracellular traps-associated markers are elevated in patients with systemic lupus erythematosus
EP  - 1857
IS  - 11
SP  - 1849
VL  - 39
DO  - 10.1007/s00296-019-04426-1
ER  - 

@article{
author = "Jeremić, Ivica and Đurić, Olivera and Nikolić, Milos and Vlajnić, Marina and Nikolić, Aleksandra and Radojković, Dragica and Bonaci-Nikolić, Branka",
year = "2019",
abstract = "Neutrophil extracellular traps (NETs) are the main source of autoantigens in systemic lupus erythematosus (SLE). The aim of this study was to evaluate the clinical importance of NETs-associated markers in SLE. We compared NETs-associated markers in SLE patients (n = 111) with healthy controls (n = 50). Moreover, in 35 patients with drug-naive SLE (n = 35), we investigated correlation between NETs-associated markers [DNase I concentration, myeloperoxidase (MPO) activity, anti-MPO antibodies, cell-free DNA (cfDNA), NETolytic activity] with serological parameters [anti-dsDNA antibodies, C3, C4 and B-cell activating factor (BAFF) levels] and disease activity measured by modified SLE Disease Activity Index (M-SLEDAI-2K). In comparison with healthy controls, SLE patients had higher cfDNA, MPO activity, anti-MPO antibodies (p  lt  0.001), BAFF and DNase I concentration (p  lt  0.01). Contrary, NETolytic activity was lower in SLE patients (p  lt  0.05), despite higher concentration of DNase I. MPO activity and cfDNA levels showed correlation with DNase I concentration (p  lt  0.001, p  lt  0.01, respectively). BAFF levels correlated with cfDNA, DNase I concentration and MPO activity (p  lt  0.05). Anti-dsDNA antibodies showed correlation with MPO activity (p  lt  0.01), cfDNA and BAFF levels (p  lt  0.001). Anti-dsDNA and C3 levels were independent predictors of M-SLEDAI-2K in multivariate analysis (p  lt  0.01). We demonstrated that sera of SLE patients have decreased NETolytic activity, leading to increased levels of various NETs-associated markers, which correlate with anti-dsDNA antibodies in drug-naive SLE. We showed that BAFF participates in a complex relationship between NETosis and anti-dsDNA antibodies production. These findings have important implications for a better understanding of SLE pathogenesis and development of therapy that inhibits NETs persistence and disease progression.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Rheumatology International",
title = "Neutrophil extracellular traps-associated markers are elevated in patients with systemic lupus erythematosus",
pages = "1857-1849",
number = "11",
volume = "39",
doi = "10.1007/s00296-019-04426-1"
}

Jeremić, I., Đurić, O., Nikolić, M., Vlajnić, M., Nikolić, A., Radojković, D.,& Bonaci-Nikolić, B.. (2019). Neutrophil extracellular traps-associated markers are elevated in patients with systemic lupus erythematosus. in Rheumatology International
Springer Heidelberg, Heidelberg., 39(11), 1849-1857.
https://doi.org/10.1007/s00296-019-04426-1

Jeremić I, Đurić O, Nikolić M, Vlajnić M, Nikolić A, Radojković D, Bonaci-Nikolić B. Neutrophil extracellular traps-associated markers are elevated in patients with systemic lupus erythematosus. in Rheumatology International. 2019;39(11):1849-1857.
doi:10.1007/s00296-019-04426-1 .

Jeremić, Ivica, Đurić, Olivera, Nikolić, Milos, Vlajnić, Marina, Nikolić, Aleksandra, Radojković, Dragica, Bonaci-Nikolić, Branka, "Neutrophil extracellular traps-associated markers are elevated in patients with systemic lupus erythematosus" in Rheumatology International, 39, no. 11 (2019):1849-1857,
https://doi.org/10.1007/s00296-019-04426-1 . .

TY  - JOUR
AU  - Vancevska, Aleksandra
AU  - Nikolić, Aleksandra
AU  - Bonaci-Nikolić, Branka
AU  - Skiljević, Dusan
AU  - Radojković, Dragica
PY  - 2016
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/922
AB  - BackgroundWe report the improvement of previously described method for determining deoxyribonuclease (DNase) activity in serum samples that uses a fluorescently labeled DNA fragment as a substrate MethodsActivity of serum DNase was analyzed in 31 patients with systemic lupus erythematosus (SLE) and 13 healthy individuals by fluoresence-based method and ELISA test ResultsWe found a mean decrease in DNase activity between cases and controls of 12.46% measured by the fluoresence-based method and of 12.21% measured by ELISA method. High level of positive correlation between two methods for DNase activity was observed: P  lt  0.001 and Pearson correlation coefficient 0.740. Decreased DNase activity was found in 25 of 31 SLE patients (81%) by fluoresence-based method and in 24 of 31 SLE patients (77%) by ELISA test. We also observed the significant positive correlation between titer of anti-dsDNA antibodies and DNase activity measured by both methods (P  lt  0.05). ConclusionsThe key improvement is the use of internal control in the fluorescence-based method, which diminishes the influence of technical errors on the obtained results and increases reliability of the assay. This improved fluorescence-based method, with additional validation, may provide an alternative to more expensive and time-consuming conventional methods, such as ELISA.
PB  - Wiley, Hoboken
T2  - Journal of Clinical Laboratory Analysis
T1  - Assessment of Deoxyribonuclease Activity in Serum Samples of Patients With Systemic Lupus Erythematosus: Fluorescence-Based Method Versus ELISA
EP  - 803
IS  - 6
SP  - 797
VL  - 30
DO  - 10.1002/jcla.21939
ER  - 

@article{
author = "Vancevska, Aleksandra and Nikolić, Aleksandra and Bonaci-Nikolić, Branka and Skiljević, Dusan and Radojković, Dragica",
year = "2016",
abstract = "BackgroundWe report the improvement of previously described method for determining deoxyribonuclease (DNase) activity in serum samples that uses a fluorescently labeled DNA fragment as a substrate MethodsActivity of serum DNase was analyzed in 31 patients with systemic lupus erythematosus (SLE) and 13 healthy individuals by fluoresence-based method and ELISA test ResultsWe found a mean decrease in DNase activity between cases and controls of 12.46% measured by the fluoresence-based method and of 12.21% measured by ELISA method. High level of positive correlation between two methods for DNase activity was observed: P  lt  0.001 and Pearson correlation coefficient 0.740. Decreased DNase activity was found in 25 of 31 SLE patients (81%) by fluoresence-based method and in 24 of 31 SLE patients (77%) by ELISA test. We also observed the significant positive correlation between titer of anti-dsDNA antibodies and DNase activity measured by both methods (P  lt  0.05). ConclusionsThe key improvement is the use of internal control in the fluorescence-based method, which diminishes the influence of technical errors on the obtained results and increases reliability of the assay. This improved fluorescence-based method, with additional validation, may provide an alternative to more expensive and time-consuming conventional methods, such as ELISA.",
publisher = "Wiley, Hoboken",
journal = "Journal of Clinical Laboratory Analysis",
title = "Assessment of Deoxyribonuclease Activity in Serum Samples of Patients With Systemic Lupus Erythematosus: Fluorescence-Based Method Versus ELISA",
pages = "803-797",
number = "6",
volume = "30",
doi = "10.1002/jcla.21939"
}

Vancevska, A., Nikolić, A., Bonaci-Nikolić, B., Skiljević, D.,& Radojković, D.. (2016). Assessment of Deoxyribonuclease Activity in Serum Samples of Patients With Systemic Lupus Erythematosus: Fluorescence-Based Method Versus ELISA. in Journal of Clinical Laboratory Analysis
Wiley, Hoboken., 30(6), 797-803.
https://doi.org/10.1002/jcla.21939

Vancevska A, Nikolić A, Bonaci-Nikolić B, Skiljević D, Radojković D. Assessment of Deoxyribonuclease Activity in Serum Samples of Patients With Systemic Lupus Erythematosus: Fluorescence-Based Method Versus ELISA. in Journal of Clinical Laboratory Analysis. 2016;30(6):797-803.
doi:10.1002/jcla.21939 .

Vancevska, Aleksandra, Nikolić, Aleksandra, Bonaci-Nikolić, Branka, Skiljević, Dusan, Radojković, Dragica, "Assessment of Deoxyribonuclease Activity in Serum Samples of Patients With Systemic Lupus Erythematosus: Fluorescence-Based Method Versus ELISA" in Journal of Clinical Laboratory Analysis, 30, no. 6 (2016):797-803,
https://doi.org/10.1002/jcla.21939 . .

TY  - JOUR
AU  - Jančić, Ivan
AU  - Šefik-Bukilica, Mirjana
AU  - Živojinović, Slađana
AU  - Damjanov, Nemanja
AU  - Spasovski, Vesna
AU  - Kotur, Nikola
AU  - Karan-Đurašević, Teodora
AU  - Pavlović, Sonja
AU  - Bufan, Biljana
AU  - Arsenović-Ranin, Nevena
PY  - 2015
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/837
AB  - Uvod: Genetički faktori su značajni za predviđanje ishoda lečenja bolesnika sa reumatoidnim artritisom (RA). Cilj studije bio je da se ispita uticaj-308G/A TNF-α (rs 1800629) i -174G/C IL-6 (rs1800795) promotorskih polimorfizama na terapijski odgovor na etanercept. Metode: U studiju su bila uključena 73 pacijenta sa aktivnim RA. Terapijski odgovor je procenjivan posle 6 i 12 meseci terapije po kriterijumima Evropske lige protiv reumatizma. Genotipizacija pacijenata za polimorfizme -308G/A TNF-α i -174G/C IL-6 urađena je PCR-RFLP metodom i procenjivan je uticaj genotipova na odgovor na etanercept. Rezultati: Nije bilo razlike u procentu respondera (pacijenti kod kojih se DAS28 popravio  gt  1,2) između pacijenata sa TNF-α -308GG, GA i AA genotipom ni posle 6 ni posle 12 meseci tretmana. Posle 12 meseci lečenja procenat respondera je bio značajno veći kod pacijenata sa IL-6 -174GG u odnosu na pacijente sa GC ili CC genotipom (p= 0,006, x2 test). Poređenje pacijenata prema kombinovanim IL-6/TNF-α genotipovima pokazalo je da je IL-6 -174GG / TNF-α -308GG genotip učestaliji kod respondera u odnosu na druge kombinovane genotipove (p= 0.022, x2 test). Tačnije, svi pacijenti sa kombinovanim IL-6 -174GG / TNF-α -308GG genotipom bili su responderi posle 12 meseci terapije etanerceptom. Zaključak: Studija pokazuje da bolesnici sa genotipovima koji se povezuju sa manjom produkcijom TNF-α i IL-6 najbolje odgovaraju na terapiju etanerceptom.
AB  - Background: The study was undertaken to assess the influence of functional -308G /A TNF-α (rs 1800629) and -174G/C IL-6 (rs1800795) promoter polymorphisms on the therapeutic response to etanercept, a TNF-α blocker, in patients with rheumatoid arthritis (RA). Methods: Seventy-three patients suffering from active RA were studied, at baseline and 6 and 12 months after therapy. The therapeutic response was estimated according to the European League Against Rheumatism response criteria. Patients were genotyped for -308G /A TNF-α and -174G/C IL-6 polymorphisms by the PCR-RFLP method, and the influence of genotype on etanercept response was assessed. Results: No difference in the percentage of responders (patients who had DAS28 improvement  gt  1.2) between patients with the TNF-α -308GG and GA and AA genotype was detected after 6 and 12 months of treatment. After 12 months of treatment the percentage of responders was significantly increased in patients with the IL-6 -174GG genotype compared with those with the GC or CC genotype (p=0.006 by Chi-square test). Evaluation of the patients according to their combined IL-6/TNF-α genotypes showed that patients with the IL-6 -174GG / TNF-α -308GG genotype were more frequent among the responders compared to those with other combined genotypes (p=0.022 by Chisquare test). More precisely, all patients with the combined IL-6 -174GG / TNF-α -308GG genotype were responders after 12 months of etanercept treatment. Conclusions: The study suggests that patients who are genetically low TNF-α and IL-6 producers are the best responders to etanercept therapy.
PB  - Društvo medicinskih biohemičara Srbije, Beograd i Versita
T2  - Journal of Medical Biochemistry
T1  - Uticaj polimorfizama TNF-α (-308G/A) i IL-6 (-174G/C) gena na terapijski odgovor na etanercept u reumatoidnom artritisu
T1  - Influence of promoter polymorphisms of the TNF-α (-308G/A) and IL-6 (-174G/C) genes on therapeutic response to etanercept in rheumatoid arthritis
EP  - 421
IS  - 4
SP  - 414
VL  - 34
DO  - 10.2478/jomb-2014-0060
ER  - 

@article{
author = "Jančić, Ivan and Šefik-Bukilica, Mirjana and Živojinović, Slađana and Damjanov, Nemanja and Spasovski, Vesna and Kotur, Nikola and Karan-Đurašević, Teodora and Pavlović, Sonja and Bufan, Biljana and Arsenović-Ranin, Nevena",
year = "2015",
abstract = "Uvod: Genetički faktori su značajni za predviđanje ishoda lečenja bolesnika sa reumatoidnim artritisom (RA). Cilj studije bio je da se ispita uticaj-308G/A TNF-α (rs 1800629) i -174G/C IL-6 (rs1800795) promotorskih polimorfizama na terapijski odgovor na etanercept. Metode: U studiju su bila uključena 73 pacijenta sa aktivnim RA. Terapijski odgovor je procenjivan posle 6 i 12 meseci terapije po kriterijumima Evropske lige protiv reumatizma. Genotipizacija pacijenata za polimorfizme -308G/A TNF-α i -174G/C IL-6 urađena je PCR-RFLP metodom i procenjivan je uticaj genotipova na odgovor na etanercept. Rezultati: Nije bilo razlike u procentu respondera (pacijenti kod kojih se DAS28 popravio  gt  1,2) između pacijenata sa TNF-α -308GG, GA i AA genotipom ni posle 6 ni posle 12 meseci tretmana. Posle 12 meseci lečenja procenat respondera je bio značajno veći kod pacijenata sa IL-6 -174GG u odnosu na pacijente sa GC ili CC genotipom (p= 0,006, x2 test). Poređenje pacijenata prema kombinovanim IL-6/TNF-α genotipovima pokazalo je da je IL-6 -174GG / TNF-α -308GG genotip učestaliji kod respondera u odnosu na druge kombinovane genotipove (p= 0.022, x2 test). Tačnije, svi pacijenti sa kombinovanim IL-6 -174GG / TNF-α -308GG genotipom bili su responderi posle 12 meseci terapije etanerceptom. Zaključak: Studija pokazuje da bolesnici sa genotipovima koji se povezuju sa manjom produkcijom TNF-α i IL-6 najbolje odgovaraju na terapiju etanerceptom., Background: The study was undertaken to assess the influence of functional -308G /A TNF-α (rs 1800629) and -174G/C IL-6 (rs1800795) promoter polymorphisms on the therapeutic response to etanercept, a TNF-α blocker, in patients with rheumatoid arthritis (RA). Methods: Seventy-three patients suffering from active RA were studied, at baseline and 6 and 12 months after therapy. The therapeutic response was estimated according to the European League Against Rheumatism response criteria. Patients were genotyped for -308G /A TNF-α and -174G/C IL-6 polymorphisms by the PCR-RFLP method, and the influence of genotype on etanercept response was assessed. Results: No difference in the percentage of responders (patients who had DAS28 improvement  gt  1.2) between patients with the TNF-α -308GG and GA and AA genotype was detected after 6 and 12 months of treatment. After 12 months of treatment the percentage of responders was significantly increased in patients with the IL-6 -174GG genotype compared with those with the GC or CC genotype (p=0.006 by Chi-square test). Evaluation of the patients according to their combined IL-6/TNF-α genotypes showed that patients with the IL-6 -174GG / TNF-α -308GG genotype were more frequent among the responders compared to those with other combined genotypes (p=0.022 by Chisquare test). More precisely, all patients with the combined IL-6 -174GG / TNF-α -308GG genotype were responders after 12 months of etanercept treatment. Conclusions: The study suggests that patients who are genetically low TNF-α and IL-6 producers are the best responders to etanercept therapy.",
publisher = "Društvo medicinskih biohemičara Srbije, Beograd i Versita",
journal = "Journal of Medical Biochemistry",
title = "Uticaj polimorfizama TNF-α (-308G/A) i IL-6 (-174G/C) gena na terapijski odgovor na etanercept u reumatoidnom artritisu, Influence of promoter polymorphisms of the TNF-α (-308G/A) and IL-6 (-174G/C) genes on therapeutic response to etanercept in rheumatoid arthritis",
pages = "421-414",
number = "4",
volume = "34",
doi = "10.2478/jomb-2014-0060"
}

Jančić, I., Šefik-Bukilica, M., Živojinović, S., Damjanov, N., Spasovski, V., Kotur, N., Karan-Đurašević, T., Pavlović, S., Bufan, B.,& Arsenović-Ranin, N.. (2015). Uticaj polimorfizama TNF-α (-308G/A) i IL-6 (-174G/C) gena na terapijski odgovor na etanercept u reumatoidnom artritisu. in Journal of Medical Biochemistry
Društvo medicinskih biohemičara Srbije, Beograd i Versita., 34(4), 414-421.
https://doi.org/10.2478/jomb-2014-0060

Jančić I, Šefik-Bukilica M, Živojinović S, Damjanov N, Spasovski V, Kotur N, Karan-Đurašević T, Pavlović S, Bufan B, Arsenović-Ranin N. Uticaj polimorfizama TNF-α (-308G/A) i IL-6 (-174G/C) gena na terapijski odgovor na etanercept u reumatoidnom artritisu. in Journal of Medical Biochemistry. 2015;34(4):414-421.
doi:10.2478/jomb-2014-0060 .

Jančić, Ivan, Šefik-Bukilica, Mirjana, Živojinović, Slađana, Damjanov, Nemanja, Spasovski, Vesna, Kotur, Nikola, Karan-Đurašević, Teodora, Pavlović, Sonja, Bufan, Biljana, Arsenović-Ranin, Nevena, "Uticaj polimorfizama TNF-α (-308G/A) i IL-6 (-174G/C) gena na terapijski odgovor na etanercept u reumatoidnom artritisu" in Journal of Medical Biochemistry, 34, no. 4 (2015):414-421,
https://doi.org/10.2478/jomb-2014-0060 . .

TY  - JOUR
AU  - Jancić, Ivan
AU  - Arsenović-Ranin, Nevena
AU  - Sefik-Bukilica, Mirjana
AU  - Živojinović, Slađana
AU  - Damjanov, Nemanja
AU  - Spasovski, Vesna
AU  - Srzentić Dražilov, Sanja
AU  - Stanković, Biljana
AU  - Pavlović, Sonja
PY  - 2013
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/645
AB  - To examine whether -174G/C interleukin-6 (IL-6) gene polymorphism, previously reported to correlate with IL-6 level, influences response to etanercept therapy in patients with rheumatoid arthritis. Seventy-seven patients with active RA were studied, at baseline and 6- and 12-month follow-up after etanercept therapy. Treatment response was estimated according to the European League Against Rheumatism response criteria. RA patients were genotyped for -174G/C IL-6 gene polymorphism by the PCR-RFLP method, and influence of genotype at this polymorphism to clinical response to etanercept was assessed. After 12 months of treatment, the percentage of responders (patients who had DAS28 improvement  gt  1.2) was significantly increased in patients carrying the IL-6 -174G/G genotype (95.7 %) compared with those with the G/C (75.6 %) or CC (44.4 %) genotype (p = 0.006 by Chi-square test). No significant difference in the mean values of DAS28 improvement was observed between groups with different genotype. RA patients with an IL-6 -174GG genotype respond to etanercept better than patients with GC or CC genotype. This finding, if confirmed in future studies, suggests that the -174G/C IL-6 polymorphism may be a genetic marker of responsiveness to tumor necrosis factor-alpha (TNF-alpha) blockers in RA.
PB  - Springer Heidelberg, Heidelberg
T2  - Rheumatology International
T1  - -174G/C interleukin-6 gene promoter polymorphism predicts therapeutic response to etanercept in rheumatoid arthritis
EP  - 1486
IS  - 6
SP  - 1481
VL  - 33
DO  - 10.1007/s00296-012-2586-y
ER  - 

@article{
author = "Jancić, Ivan and Arsenović-Ranin, Nevena and Sefik-Bukilica, Mirjana and Živojinović, Slađana and Damjanov, Nemanja and Spasovski, Vesna and Srzentić Dražilov, Sanja and Stanković, Biljana and Pavlović, Sonja",
year = "2013",
abstract = "To examine whether -174G/C interleukin-6 (IL-6) gene polymorphism, previously reported to correlate with IL-6 level, influences response to etanercept therapy in patients with rheumatoid arthritis. Seventy-seven patients with active RA were studied, at baseline and 6- and 12-month follow-up after etanercept therapy. Treatment response was estimated according to the European League Against Rheumatism response criteria. RA patients were genotyped for -174G/C IL-6 gene polymorphism by the PCR-RFLP method, and influence of genotype at this polymorphism to clinical response to etanercept was assessed. After 12 months of treatment, the percentage of responders (patients who had DAS28 improvement  gt  1.2) was significantly increased in patients carrying the IL-6 -174G/G genotype (95.7 %) compared with those with the G/C (75.6 %) or CC (44.4 %) genotype (p = 0.006 by Chi-square test). No significant difference in the mean values of DAS28 improvement was observed between groups with different genotype. RA patients with an IL-6 -174GG genotype respond to etanercept better than patients with GC or CC genotype. This finding, if confirmed in future studies, suggests that the -174G/C IL-6 polymorphism may be a genetic marker of responsiveness to tumor necrosis factor-alpha (TNF-alpha) blockers in RA.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Rheumatology International",
title = "-174G/C interleukin-6 gene promoter polymorphism predicts therapeutic response to etanercept in rheumatoid arthritis",
pages = "1486-1481",
number = "6",
volume = "33",
doi = "10.1007/s00296-012-2586-y"
}

Jancić, I., Arsenović-Ranin, N., Sefik-Bukilica, M., Živojinović, S., Damjanov, N., Spasovski, V., Srzentić Dražilov, S., Stanković, B.,& Pavlović, S.. (2013). -174G/C interleukin-6 gene promoter polymorphism predicts therapeutic response to etanercept in rheumatoid arthritis. in Rheumatology International
Springer Heidelberg, Heidelberg., 33(6), 1481-1486.
https://doi.org/10.1007/s00296-012-2586-y

Jancić I, Arsenović-Ranin N, Sefik-Bukilica M, Živojinović S, Damjanov N, Spasovski V, Srzentić Dražilov S, Stanković B, Pavlović S. -174G/C interleukin-6 gene promoter polymorphism predicts therapeutic response to etanercept in rheumatoid arthritis. in Rheumatology International. 2013;33(6):1481-1486.
doi:10.1007/s00296-012-2586-y .

Jancić, Ivan, Arsenović-Ranin, Nevena, Sefik-Bukilica, Mirjana, Živojinović, Slađana, Damjanov, Nemanja, Spasovski, Vesna, Srzentić Dražilov, Sanja, Stanković, Biljana, Pavlović, Sonja, "-174G/C interleukin-6 gene promoter polymorphism predicts therapeutic response to etanercept in rheumatoid arthritis" in Rheumatology International, 33, no. 6 (2013):1481-1486,
https://doi.org/10.1007/s00296-012-2586-y . .