TY  - CONF
AU  - Jokić, Bojan
AU  - Janković-Castvan, I.
AU  - Veljović, Đorđe
AU  - Bucevac, D.
AU  - Obradović-Đuričić, Kosovka
AU  - Petrović, R.
AU  - Janaćković, Đorđe
PY  - 2007
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1364
AB  - The aim of this work is the investigation of alpha-tricalcium-phosphate (alpha-TCP) formation from calcium-deficient hydroxyapatite (CDHAP), synthesized by hydrothermal method from CaCl2, EDTA, NaH2PO4 center dot 2H(2)O and urea as precursors at 160 degrees C. Further, the influence of Ca/P ratios in the starting solution on alpha-TCP formation and the settings of obtained cements in simulated body fluid (SBF) were investigated. According to the results of X-ray, FTIR and SEM analyses, it is shown that CDHAP is transformed to beta-TCP at 800 degrees C, and to alpha-TCP at 1200 degrees C. Almost complete transformation of CDHAP into alpha-TCP occur after heating at 1500 degrees C in the case when Ca/P ratio in starting solution was 1,42. Cement powder mixed with the cement liquid (2.5 wt.% solution of Na2HPO4) completely hydrolyzes after 7 days in SBF, forming only CDHAP phase.
C3  - Journal of Optoelectronics & Advanced Materials
T1  - Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method
VL  - 9
IS  - 6
SP  - 1904
EP  - 1910
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2574
ER  - 

@conference{
author = "Jokić, Bojan and Janković-Castvan, I. and Veljović, Đorđe and Bucevac, D. and Obradović-Đuričić, Kosovka and Petrović, R. and Janaćković, Đorđe",
year = "2007",
abstract = "The aim of this work is the investigation of alpha-tricalcium-phosphate (alpha-TCP) formation from calcium-deficient hydroxyapatite (CDHAP), synthesized by hydrothermal method from CaCl2, EDTA, NaH2PO4 center dot 2H(2)O and urea as precursors at 160 degrees C. Further, the influence of Ca/P ratios in the starting solution on alpha-TCP formation and the settings of obtained cements in simulated body fluid (SBF) were investigated. According to the results of X-ray, FTIR and SEM analyses, it is shown that CDHAP is transformed to beta-TCP at 800 degrees C, and to alpha-TCP at 1200 degrees C. Almost complete transformation of CDHAP into alpha-TCP occur after heating at 1500 degrees C in the case when Ca/P ratio in starting solution was 1,42. Cement powder mixed with the cement liquid (2.5 wt.% solution of Na2HPO4) completely hydrolyzes after 7 days in SBF, forming only CDHAP phase.",
journal = "Journal of Optoelectronics & Advanced Materials",
title = "Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method",
volume = "9",
number = "6",
pages = "1904-1910",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2574"
}

Jokić, B., Janković-Castvan, I., Veljović, Đ., Bucevac, D., Obradović-Đuričić, K., Petrović, R.,& Janaćković, Đ.. (2007). Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method. in Journal of Optoelectronics & Advanced Materials, 9(6), 1904-1910.
https://hdl.handle.net/21.15107/rcub_vinar_2574

Jokić B, Janković-Castvan I, Veljović Đ, Bucevac D, Obradović-Đuričić K, Petrović R, Janaćković Đ. Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method. in Journal of Optoelectronics & Advanced Materials. 2007;9(6):1904-1910.
https://hdl.handle.net/21.15107/rcub_vinar_2574 .

Jokić, Bojan, Janković-Castvan, I., Veljović, Đorđe, Bucevac, D., Obradović-Đuričić, Kosovka, Petrović, R., Janaćković, Đorđe, "Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method" in Journal of Optoelectronics & Advanced Materials, 9, no. 6 (2007):1904-1910,
https://hdl.handle.net/21.15107/rcub_vinar_2574 .

TY  - JOUR
AU  - Lukić, A.
AU  - Vasilijić, Saša
AU  - Majstorović, I.
AU  - Vucević, D.
AU  - Mojsilović, S.
AU  - Gazivoda, Dragan
AU  - Danilović, Vesna
AU  - Petrović, R.
AU  - Colić, M.
PY  - 2006
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1297
AB  - Aim To analyse phenotypic characteristics of antigen-presenting cells (APC), isolated from human periapical lesions by flow cytometry and immunocytochemistry. Methodology Sixteen periapical lesions were digested for 15 min with 0.05% collagenase. Mononuclear cells, separated from other inflammatory cells by density centrifugation, were processed for flow cytometry and/or immunocytochemistry. Single and double immunostainings were performed using monoclonal antibodies specific for human CD45, CD3, CD19, CD14, HLA-DR, CD1a, CD83 and CD123. Results Antigen-presenting cells (HLA-DR+ cells) represented 32.9 +/- 17.8% of total mononuclear cells. Amongst them, B cells (HLA-DR+ CD19(+)) were the predominant APC population, followed by activated macrophages (HLA-DR+ CD14(+)), dendritic cells (DC) (HLA-DR+ CD14(-) CD19(-) CD3(-)) and activated T cells (HLA-DR+ CD3(+)). Based on the predominance of T cells (CD3(+)) or B cells and plasma cells (CD19(+) and CD19(lo), respectively) amongst mononuclear cell infiltrates, lesions were divided into T- and B-types. The percentage of DC in T-type lesions (27.1 +/- 6.8% of total HLA-DR+ cells) was higher, compared with B-type lesions (10.3 +/- 5.2%) (P  lt  0.01). Within the DC population, the percentages of CD1a (Langerhans cell type) and CD123 (probably plasmacytoid DC type) did not differ significantly between the groups (P > 0.05). However, the percentage of mature DC (CD83(+)) was significantly higher in T-type periapical lesions (P  lt  0.05). Conclusion Flow cytometry and immunocytochemistry are suitable methods for phenotypic analysis of APC after their isolation from human periapical lesions. APC, that were phenotypically heterogeneous, constituted a significant component of infiltrating cells. Lesions with the predominance of T cells were characterized by a higher proportion of mature DC (HLA-DR(+)CD83(+) cells) than lesions with predominance of B cells/plasma cells.
PB  - Wiley, Hoboken
T2  - International Endodontic Journal
T1  - Characterization of antigen-presenting cells in human apical periodontitis lesions by flow cytometry and immunocytochemistry
VL  - 39
IS  - 8
SP  - 626
EP  - 636
DO  - 10.1111/j.1365-2591.2006.01125.x
ER  - 

@article{
author = "Lukić, A. and Vasilijić, Saša and Majstorović, I. and Vucević, D. and Mojsilović, S. and Gazivoda, Dragan and Danilović, Vesna and Petrović, R. and Colić, M.",
year = "2006",
abstract = "Aim To analyse phenotypic characteristics of antigen-presenting cells (APC), isolated from human periapical lesions by flow cytometry and immunocytochemistry. Methodology Sixteen periapical lesions were digested for 15 min with 0.05% collagenase. Mononuclear cells, separated from other inflammatory cells by density centrifugation, were processed for flow cytometry and/or immunocytochemistry. Single and double immunostainings were performed using monoclonal antibodies specific for human CD45, CD3, CD19, CD14, HLA-DR, CD1a, CD83 and CD123. Results Antigen-presenting cells (HLA-DR+ cells) represented 32.9 +/- 17.8% of total mononuclear cells. Amongst them, B cells (HLA-DR+ CD19(+)) were the predominant APC population, followed by activated macrophages (HLA-DR+ CD14(+)), dendritic cells (DC) (HLA-DR+ CD14(-) CD19(-) CD3(-)) and activated T cells (HLA-DR+ CD3(+)). Based on the predominance of T cells (CD3(+)) or B cells and plasma cells (CD19(+) and CD19(lo), respectively) amongst mononuclear cell infiltrates, lesions were divided into T- and B-types. The percentage of DC in T-type lesions (27.1 +/- 6.8% of total HLA-DR+ cells) was higher, compared with B-type lesions (10.3 +/- 5.2%) (P  lt  0.01). Within the DC population, the percentages of CD1a (Langerhans cell type) and CD123 (probably plasmacytoid DC type) did not differ significantly between the groups (P > 0.05). However, the percentage of mature DC (CD83(+)) was significantly higher in T-type periapical lesions (P  lt  0.05). Conclusion Flow cytometry and immunocytochemistry are suitable methods for phenotypic analysis of APC after their isolation from human periapical lesions. APC, that were phenotypically heterogeneous, constituted a significant component of infiltrating cells. Lesions with the predominance of T cells were characterized by a higher proportion of mature DC (HLA-DR(+)CD83(+) cells) than lesions with predominance of B cells/plasma cells.",
publisher = "Wiley, Hoboken",
journal = "International Endodontic Journal",
title = "Characterization of antigen-presenting cells in human apical periodontitis lesions by flow cytometry and immunocytochemistry",
volume = "39",
number = "8",
pages = "626-636",
doi = "10.1111/j.1365-2591.2006.01125.x"
}

Lukić, A., Vasilijić, S., Majstorović, I., Vucević, D., Mojsilović, S., Gazivoda, D., Danilović, V., Petrović, R.,& Colić, M.. (2006). Characterization of antigen-presenting cells in human apical periodontitis lesions by flow cytometry and immunocytochemistry. in International Endodontic Journal
Wiley, Hoboken., 39(8), 626-636.
https://doi.org/10.1111/j.1365-2591.2006.01125.x

Lukić A, Vasilijić S, Majstorović I, Vucević D, Mojsilović S, Gazivoda D, Danilović V, Petrović R, Colić M. Characterization of antigen-presenting cells in human apical periodontitis lesions by flow cytometry and immunocytochemistry. in International Endodontic Journal. 2006;39(8):626-636.
doi:10.1111/j.1365-2591.2006.01125.x .

Lukić, A., Vasilijić, Saša, Majstorović, I., Vucević, D., Mojsilović, S., Gazivoda, Dragan, Danilović, Vesna, Petrović, R., Colić, M., "Characterization of antigen-presenting cells in human apical periodontitis lesions by flow cytometry and immunocytochemistry" in International Endodontic Journal, 39, no. 8 (2006):626-636,
https://doi.org/10.1111/j.1365-2591.2006.01125.x . .