TY  - JOUR
AU  - Cvetković, Stefana
AU  - Todorović, Slađana
AU  - Nastasijević, Branislav J.
AU  - Mitić-Ćulafić, Dragana
AU  - Đukanović, Stefana
AU  - Knežević-Vukčević, Jelena
AU  - Nikolić, Biljana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9046
AB  - Medicinal plant Gentiana lutea is considered as an official drug for gastrointestinal disorders in many pharmacopoeias. Its uncontrolled overexploitation led to the protection regime and encouraged development of in vitro culture. The aim of this work was to chemically characterize root and leaf methanol extracts of plant grown in plantation and in vitro conditions, and to determine their antigenotoxicity against heterocyclic aromatic amines IQ and PhIP, the food-borne mutagens that are formed during high temperature cooking of protein-reach foods. High yields and growth ratios were determined for in vitro plants. Higher content of polyphenols and flavonoids were determined in aerial parts, while UPLC-MS/MS analysis pointed at the richness of in vitro grown shoot extract (GLvS) in active constituents, and high amounts of gentiopicroside in all tested extracts. Notable amounts of sweroside were detected in plantation root extract (GLR) and in GLvS, and of loganic acid in plantation leaf extract (GLL) and GLvS. Two experimental models for genotoxicity/antigenotoxicity study, i.e. SOS/umuC test with metabolic activation (addition of rat liver S9 fraction) and alkaline comet assay on hepatocellur carcinoma HepG2 cells indicated dual effects: genotoxic of high and antigenotoxic of lower non-genotoxic doses. While in vitro extracts were genotoxic in both models, plantation extracts were active only in SOS/umuC with S9. In contrast, inhibition of genotoxicity was observed in both models for all extracts (up to 83 %). Results of DPPH assay indicated that antioxidativity could be responsible for antigenotoxic properties. In conclusion, genoprotective effect encourages further investigation of antigenotoxicity, while high growth ratio and richness of GLvS in active compounds justify the use of in vitro cultivation method.
T2  - Industrial Crops and Products
T1  - Assessment of genoprotective effects of Gentiana lutea extracts prepared from plants grown in field and in vitro
VL  - 154
SP  - 112690
DO  - 10.1016/j.indcrop.2020.112690
ER  - 

@article{
author = "Cvetković, Stefana and Todorović, Slađana and Nastasijević, Branislav J. and Mitić-Ćulafić, Dragana and Đukanović, Stefana and Knežević-Vukčević, Jelena and Nikolić, Biljana",
year = "2020",
abstract = "Medicinal plant Gentiana lutea is considered as an official drug for gastrointestinal disorders in many pharmacopoeias. Its uncontrolled overexploitation led to the protection regime and encouraged development of in vitro culture. The aim of this work was to chemically characterize root and leaf methanol extracts of plant grown in plantation and in vitro conditions, and to determine their antigenotoxicity against heterocyclic aromatic amines IQ and PhIP, the food-borne mutagens that are formed during high temperature cooking of protein-reach foods. High yields and growth ratios were determined for in vitro plants. Higher content of polyphenols and flavonoids were determined in aerial parts, while UPLC-MS/MS analysis pointed at the richness of in vitro grown shoot extract (GLvS) in active constituents, and high amounts of gentiopicroside in all tested extracts. Notable amounts of sweroside were detected in plantation root extract (GLR) and in GLvS, and of loganic acid in plantation leaf extract (GLL) and GLvS. Two experimental models for genotoxicity/antigenotoxicity study, i.e. SOS/umuC test with metabolic activation (addition of rat liver S9 fraction) and alkaline comet assay on hepatocellur carcinoma HepG2 cells indicated dual effects: genotoxic of high and antigenotoxic of lower non-genotoxic doses. While in vitro extracts were genotoxic in both models, plantation extracts were active only in SOS/umuC with S9. In contrast, inhibition of genotoxicity was observed in both models for all extracts (up to 83 %). Results of DPPH assay indicated that antioxidativity could be responsible for antigenotoxic properties. In conclusion, genoprotective effect encourages further investigation of antigenotoxicity, while high growth ratio and richness of GLvS in active compounds justify the use of in vitro cultivation method.",
journal = "Industrial Crops and Products",
title = "Assessment of genoprotective effects of Gentiana lutea extracts prepared from plants grown in field and in vitro",
volume = "154",
pages = "112690",
doi = "10.1016/j.indcrop.2020.112690"
}

Cvetković, S., Todorović, S., Nastasijević, B. J., Mitić-Ćulafić, D., Đukanović, S., Knežević-Vukčević, J.,& Nikolić, B.. (2020). Assessment of genoprotective effects of Gentiana lutea extracts prepared from plants grown in field and in vitro. in Industrial Crops and Products, 154, 112690.
https://doi.org/10.1016/j.indcrop.2020.112690

Cvetković S, Todorović S, Nastasijević BJ, Mitić-Ćulafić D, Đukanović S, Knežević-Vukčević J, Nikolić B. Assessment of genoprotective effects of Gentiana lutea extracts prepared from plants grown in field and in vitro. in Industrial Crops and Products. 2020;154:112690.
doi:10.1016/j.indcrop.2020.112690 .

Cvetković, Stefana, Todorović, Slađana, Nastasijević, Branislav J., Mitić-Ćulafić, Dragana, Đukanović, Stefana, Knežević-Vukčević, Jelena, Nikolić, Biljana, "Assessment of genoprotective effects of Gentiana lutea extracts prepared from plants grown in field and in vitro" in Industrial Crops and Products, 154 (2020):112690,
https://doi.org/10.1016/j.indcrop.2020.112690 . .

TY  - CONF
AU  - Cvetković, Stefana
AU  - Đukanović, S.
AU  - Mitić-Ćulafić, Dragana
AU  - Nastasijević, Branislav J.
AU  - Knežević-Vukčević, Jelena
AU  - Nikolić, Biljana
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8627
AB  - During high-temperature cooking of protein rich foods, especially meat and fish, heterocyclic aromatic amines can be formed. These amines are a class of potent mutagens that can cause alterations in the structure of DNA and chromosomes. In recent decades, research has been focused on investigating plants and their phytochemicals as potential antimutagens. The aim of this study was to examine the anti-genotoxic effect of methanolic root and leaf extracts of Gentiana lutea against the food mutagens 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) and 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) produced in thermally processed meat. To determine the protective potential of extracts, the alkaline comet assay was applied. The results obtained indicated strong anti-genotoxic effect of both extracts against the tested mutagens. The highest inhibition of IQ-induced genotoxicity was recorded for leaf extract (72%). Regarding PhiP, root extract achieved inhibition of 80% of DNA damage, so was more successful than leaf extract. The data obtained in this study stimulates further research of G. lutea extracts and its constituents as potential dietary supplements in improving human health. © Published under licence by IOP Publishing Ltd.
C3  - IOP Conference Series: Earth and Environmental Science
T1  - Protective effect of Gentiana lutea root and leaf extracts against heterocyclic aromatic amines IQ and PhIP produced in thermally processed meat
VL  - 333
IS  - 1
SP  - UNSP 012052
DO  - 10.1088/1755-1315/333/1/012052
ER  - 

@conference{
author = "Cvetković, Stefana and Đukanović, S. and Mitić-Ćulafić, Dragana and Nastasijević, Branislav J. and Knežević-Vukčević, Jelena and Nikolić, Biljana",
year = "2019",
abstract = "During high-temperature cooking of protein rich foods, especially meat and fish, heterocyclic aromatic amines can be formed. These amines are a class of potent mutagens that can cause alterations in the structure of DNA and chromosomes. In recent decades, research has been focused on investigating plants and their phytochemicals as potential antimutagens. The aim of this study was to examine the anti-genotoxic effect of methanolic root and leaf extracts of Gentiana lutea against the food mutagens 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) and 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) produced in thermally processed meat. To determine the protective potential of extracts, the alkaline comet assay was applied. The results obtained indicated strong anti-genotoxic effect of both extracts against the tested mutagens. The highest inhibition of IQ-induced genotoxicity was recorded for leaf extract (72%). Regarding PhiP, root extract achieved inhibition of 80% of DNA damage, so was more successful than leaf extract. The data obtained in this study stimulates further research of G. lutea extracts and its constituents as potential dietary supplements in improving human health. © Published under licence by IOP Publishing Ltd.",
journal = "IOP Conference Series: Earth and Environmental Science",
title = "Protective effect of Gentiana lutea root and leaf extracts against heterocyclic aromatic amines IQ and PhIP produced in thermally processed meat",
volume = "333",
number = "1",
pages = "UNSP 012052",
doi = "10.1088/1755-1315/333/1/012052"
}

Cvetković, S., Đukanović, S., Mitić-Ćulafić, D., Nastasijević, B. J., Knežević-Vukčević, J.,& Nikolić, B.. (2019). Protective effect of Gentiana lutea root and leaf extracts against heterocyclic aromatic amines IQ and PhIP produced in thermally processed meat. in IOP Conference Series: Earth and Environmental Science, 333(1), UNSP 012052.
https://doi.org/10.1088/1755-1315/333/1/012052

Cvetković S, Đukanović S, Mitić-Ćulafić D, Nastasijević BJ, Knežević-Vukčević J, Nikolić B. Protective effect of Gentiana lutea root and leaf extracts against heterocyclic aromatic amines IQ and PhIP produced in thermally processed meat. in IOP Conference Series: Earth and Environmental Science. 2019;333(1):UNSP 012052.
doi:10.1088/1755-1315/333/1/012052 .

Cvetković, Stefana, Đukanović, S., Mitić-Ćulafić, Dragana, Nastasijević, Branislav J., Knežević-Vukčević, Jelena, Nikolić, Biljana, "Protective effect of Gentiana lutea root and leaf extracts against heterocyclic aromatic amines IQ and PhIP produced in thermally processed meat" in IOP Conference Series: Earth and Environmental Science, 333, no. 1 (2019):UNSP 012052,
https://doi.org/10.1088/1755-1315/333/1/012052 . .

TY  - JOUR
AU  - Opacic-Galic, V.
AU  - Petrovic, V.
AU  - Zivkovic, S.
AU  - Jokanović, Vukoman R.
AU  - Nikolić, Biljana
AU  - Knežević-Vukčević, Jelena
AU  - Mitić-Ćulafić, Dragana
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5501
AB  - Aim To characterize and investigate the genotoxic effect of a new endodontic cement based on dicalcium- and tricalcium-silicate (CS) with hydroxyapatite (HA) on human lymphocytes. Methodology Hydrothermal treatment was applied for synthesis of CS and HA. The final mixture HA-CS, with potential to be used in endodontic practice, is composed of CS (34%) and HA (66%). Human lymphocytes were incubated with HA, HA-CS and CS for 1h, at 37 degrees C and 5% CO2. Cell viability was determined using the trypan blue exclusion assay. To evaluate the level of DNA damage comet assay (single cell gel electrophoresis) was performed. For the statistical analysis anova and Duncans Post Hoc Test were used. Results The SEM analysis indicated that CS consisted mostly of agglomerates of several micrometers in size, built up from smaller particles, with dimensions between 117 and 477nm. This is promising because dimensions of agglomerates are not comparable with channels inside the cell membranes, whereas their nano-elements provide evident activity, important for faster setting of these mixtures compared to MTA. Values of DNA damage obtained in the comet assay indicated low genotoxic risk of the new endodontic materials. Conclusions The significantly improved setting characteristics and low genotoxic risk of the new material support further research.
T2  - International Endodontic Journal
T1  - New nanostructural biomaterials based on active silicate systems and hydroxyapatite: characterization and genotoxicity in human peripheral blood lymphocytes
VL  - 46
IS  - 6
SP  - 506
EP  - 516
DO  - 10.1111/iej.12017
ER  - 

@article{
author = "Opacic-Galic, V. and Petrovic, V. and Zivkovic, S. and Jokanović, Vukoman R. and Nikolić, Biljana and Knežević-Vukčević, Jelena and Mitić-Ćulafić, Dragana",
year = "2013",
abstract = "Aim To characterize and investigate the genotoxic effect of a new endodontic cement based on dicalcium- and tricalcium-silicate (CS) with hydroxyapatite (HA) on human lymphocytes. Methodology Hydrothermal treatment was applied for synthesis of CS and HA. The final mixture HA-CS, with potential to be used in endodontic practice, is composed of CS (34%) and HA (66%). Human lymphocytes were incubated with HA, HA-CS and CS for 1h, at 37 degrees C and 5% CO2. Cell viability was determined using the trypan blue exclusion assay. To evaluate the level of DNA damage comet assay (single cell gel electrophoresis) was performed. For the statistical analysis anova and Duncans Post Hoc Test were used. Results The SEM analysis indicated that CS consisted mostly of agglomerates of several micrometers in size, built up from smaller particles, with dimensions between 117 and 477nm. This is promising because dimensions of agglomerates are not comparable with channels inside the cell membranes, whereas their nano-elements provide evident activity, important for faster setting of these mixtures compared to MTA. Values of DNA damage obtained in the comet assay indicated low genotoxic risk of the new endodontic materials. Conclusions The significantly improved setting characteristics and low genotoxic risk of the new material support further research.",
journal = "International Endodontic Journal",
title = "New nanostructural biomaterials based on active silicate systems and hydroxyapatite: characterization and genotoxicity in human peripheral blood lymphocytes",
volume = "46",
number = "6",
pages = "506-516",
doi = "10.1111/iej.12017"
}

Opacic-Galic, V., Petrovic, V., Zivkovic, S., Jokanović, V. R., Nikolić, B., Knežević-Vukčević, J.,& Mitić-Ćulafić, D.. (2013). New nanostructural biomaterials based on active silicate systems and hydroxyapatite: characterization and genotoxicity in human peripheral blood lymphocytes. in International Endodontic Journal, 46(6), 506-516.
https://doi.org/10.1111/iej.12017

Opacic-Galic V, Petrovic V, Zivkovic S, Jokanović VR, Nikolić B, Knežević-Vukčević J, Mitić-Ćulafić D. New nanostructural biomaterials based on active silicate systems and hydroxyapatite: characterization and genotoxicity in human peripheral blood lymphocytes. in International Endodontic Journal. 2013;46(6):506-516.
doi:10.1111/iej.12017 .

Opacic-Galic, V., Petrovic, V., Zivkovic, S., Jokanović, Vukoman R., Nikolić, Biljana, Knežević-Vukčević, Jelena, Mitić-Ćulafić, Dragana, "New nanostructural biomaterials based on active silicate systems and hydroxyapatite: characterization and genotoxicity in human peripheral blood lymphocytes" in International Endodontic Journal, 46, no. 6 (2013):506-516,
https://doi.org/10.1111/iej.12017 . .