Boris Kajmakovic

Dr. Boris Kajmakovic

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Uros BumbasirevicUros Bumbasirevic
Uros Bumbasirevic
NBNebojsa Nikola Bojanic
Nebojsa Nikola Bojanic
Tatjana SimicTatjana Simic
Tatjana Simic
BMBogomir Milojevic
Bogomir Milojevic
MZMarko Zivkovic
Marko Zivkovic
VCVesna Coric
Vesna Coric
Sustained and dysregulated inflammation, concurrent tumor-induced immune suppression, and oxidative stress are profoundly involved in cancer initiation, presentation, and perpetuation. Within this prospective study, we simultaneously analyzed the preoperative indices of systemic inflammatory response and the representative byproducts of oxidative DNA, protein, and lipid damage with the aim of evaluating their clinical relevance among patients diagnosed with testicular germ-cell tumors (GCT). In the analytical cohort (n = 88, median age 34 years), neutrophil-to-lymphocyte ratio (NLR), derived neutrophil-to-lymphocyte ratio (dNLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), systemic immune-inflammation index (SII), systemic inflammation response index (SIRI), and C-reactive protein (CRP) were significantly altered in patients with a higher tumor stage (p < 0.05). Highly suggestive correlations were found between NLR, dNLR, and SII and modified nucleoside 8-OHdG. CRP and albumin-to-globulin ratio (AGR) significantly correlated with thiols group level and maximal tumor dimension (p < 0.05). Based on receiver operating characteristic (ROC) curve analyses, all the evaluated pre-orchiectomy inflammation markers demonstrated strong performance in predicting metastatic disease; optimal cut-off points were determined for each indicator. Although further large-scale studies are warranted, inflammatory and redox indices may both complement the established tumor markers and standard clinicopathological prognostic variables and contribute to enhanced personalized risk-assessment among testicular GCT patients.

20 February 2022 in Cancers
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Uros BumbasirevicUros Bumbasirevic
Uros Bumbasirevic
NBNebojsa Nikola Bojanic
Nebojsa Nikola Bojanic
MPMarija Pljesa-Ercegovac
Marija Pljesa-Ercegovac
MZMarko Zivkovic
Marko Zivkovic
TDTatjana Djukic
Tatjana Djukic
VCVesna Coric
Vesna Coric
The simultaneous analysis of redox biomarkers and polymorphisms encoding for regulatory and catalytic antioxidant proteins was performed in order to evaluate their potential role in the development of testicular germ cell tumor (GCT), as well as the progression of the disease. NRF2 (rs6721961), GSTM3 (rs1332018), SOD2 (rs4880) and GPX3 (rs8177412) polymorphisms were assessed in 88 patients with testicular GCT (52 with seminoma) and 88 age-matched controls. The plasma levels of 8-hydroxy-2′-deoxyguanosine (8-OHdG), thiol groups and the plasma activity of glutathione peroxidase were measured. A significant association between variant GPX3*TC+CC genotype and risk of overall testicular GCT, as well as seminoma development, was found. Moreover, carriers of variant SOD2*TT genotype were at almost 3-fold increased risk of seminoma development. Interestingly, combined SOD2*TT/GPX3*TC+CC genotype conferred a 7-fold higher risk for testicular GCT development. Finally, variant GSTM3*AC+CC genotype was associated with a higher risk for the development of advanced diseased. The presence of assessed genetic variants was not associated with significantly higher levels of redox biomarkers in both testicular GCT patients, as well as in those diagnosed with seminoma. In conclusion, the polymorphic expression of certain antioxidant enzymes might affect susceptibility toward testicular GCT development, as well as the progression of the disease.

27 May 2023 in Life
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MPMiloš Milivoje Petrović
Miloš Milivoje Petrović
Tatjana SimicTatjana Simic
Tatjana Simic
TDTatjana Djukic
Tatjana Djukic
TRTanja Radic
Tanja Radic
Ana Savic-RadojevicAna Savic-Radojevic
Ana Savic-Radojevic
VCVesna Coric
Vesna Coric
Members of the omega class of glutathione transferases (GSTs), GSTO1, and GSTO2, catalyze a range of reduction reactions as a part of the antioxidant defense system. Polymorphisms of genes encoding antioxidant proteins and the resultant altered redox profile have already been associated with the increased risk for testicular germ cell cancer (GCT) development. The aim of this pilot study was to assess the individual, combined, haplotype, and cumulative effect of GSTO1rs4925, GSTO2rs156697, and GSTO2rs2297235 polymorphisms with the risk for testicular GCT development, in 88 patients and 96 matched controls, through logistic regression models. We found that carriers of the GSTO1*C/A*C/C genotype exhibited an increased risk for testicular GCT development. Significant association with increased risk of testicular GCT was observed in carriers of GSTO2rs2297235*A/G*G/G genotype, and in carriers of combined GSTO2rs156697*A/G*G/G and GSTO2rs2297235*A/G*G/G genotypes. Haplotype H7 (GSTO1rs4925*C/GSTO2rs2297235*G/GSTO2rs156697*G) exhibited higher risk of testicular GCT, however, without significant association (p > 0.05). Finally, 51% of testicular GCT patients were the carriers of all three risk-associated genotypes, with 2.5-fold increased cumulative risk. In conclusion, the results of this pilot study suggest that GSTO polymorphisms might affect the protective antioxidant activity of GSTO isoenzymes, therefore predisposing susceptible individuals toward higher risk for testicular GCT development.

13 November 2025 in Diagnostics
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IMIsidora Grozdic Milojevic
Isidora Grozdic Milojevic
BMBogomir Milojevic
Bogomir Milojevic
DŠDaniel Fadil Škrijelj
Daniel Fadil Škrijelj
Uros BumbasirevicUros Bumbasirevic
Uros Bumbasirevic
AJAleksandar Janicic
Aleksandar Janicic
SBSlobodanka Beatovic
Slobodanka Beatovic
Background: Considering the high global frequency of prostate cancer, it is necessary to know the benefits and drawbacks of numerous diagnostic and therapeutic modalities. Methods: In this article, we include 88 manuscripts (46/88 original studies) found on PubMed, written in English in extenso, dealing with nuclear medicine methods in patients with prostate cancer. Results: Choline PET/CT had low sensitivity in detecting the primary tumor. This method has been almost completely replaced by PSMA PET/CT, which is included in international guidelines and recommended for initial staging of unfavorable intermediate- to high-risk prostate cancer, the detection of recurrent disease after treatment, the evaluation of mCRPC, therapy response evaluation, and theranostics. FDG is currently used in aggressive forms of prostate cancer and as a supplement in PSMA PET/CT for patient selection for RLT. Na[18F]F has demonstrated satisfactory diagnostic capacity for evaluating bone loss; however, due to a lack of research, it is not recommended in international guidelines. 18F-Fluciclovine has lower sensitivity than [18F]F-PSMA-1007 for the detection of early biochemical recurrence in prostate cancer. GRPR and SSTR analogs are less frequently used but can be useful in the evaluation of rarer pathohistological types. [99mTc]Tc-PSMA can be used in resource-limited settings where PET/CT is unavailable, with a lower sensitivity compared to [18F]F-PSMA-1007 but a higher sensitivity compared to bone scans. Conclusions: PSMA tracers are important tools for evaluating intermediate- and high-risk prostate cancer, with limitations in 5–10% of prostate cancers that do not express PSMA. Theranostics are increasingly incorporating PSMA.

19 August 2022 in Applied Sciences
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BKBoris Kajmakovic
Boris Kajmakovic
MPMiloš Milivoje Petrović
Miloš Milivoje Petrović
PBPetar Bulat
Petar Bulat
Uros BumbasirevicUros Bumbasirevic
Uros Bumbasirevic
BMBogomir Milojevic
Bogomir Milojevic
ZDZoran Dzamic
Zoran Dzamic
Background: Bladder neck preservation (BNP) has been adopted in open (ORP), laparoscopic (LRP), and robot-assisted radical prostatectomy (RARP). However, there are concerns that this technique can compromise oncological outcome and increase positive surgical margins (PSM). The aim was to evaluate the outcome of BNP, focusing on surgical and pathological outcomes, as well as biochemical recurrence (BCR). Methods: We prospectively collected demographic and clinical data from 170 consecutive patients who underwent ORP and LRP between 2014 and 2020. ORP was performed in 63 patients, and the rest underwent LRP. BNP was performed in 85 patients. Results: PSM were found in 24.7% of patients. Of patients with BNP, 22.4% had PSM. There was no significant statistical difference between patients with or without BNP in the form of PSM. Base-positive margins were detected in 9.4% of patients with BNP and in 5.9% of patients without BNP with no statistical significance. Bioptic Gleason score, clinical stage, and preoperative PSA were statistically significantly correlated with PSM. BCR was more common in patients without BNP (23.5%) vs. non-BNP (21.2%). The only statistically significant predictor of BCR was PSM. Conclusion: This study suggests that BNP in RP is not associated with an increased level of PSM. Preoperative PSA, bioptic Gleason score, and clinical T stage of disease were identified as predictors of PSM occurrence.

1 October 2013 in European Urology Supplements
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BCB. Cegar
B. Cegar
NBN. Bojanic
N. Bojanic
BSBiljana Stankovic
Biljana Stankovic
PNPredrag Nikic
Predrag Nikic
ODO. Durutovic
O. Durutovic
AVA. Vuksanovic
A. Vuksanovic