Kopjar, Nevenka

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orcid::0000-0002-3117-2847
  • Kopjar, Nevenka (4)
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Author's Bibliography

Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study

Jurič, Andreja; Brčić Karačonji, Irena; Gašić, Uroš M.; Milojković-Opsenica, Dušanka; Prđun, Saša; Bubalo, Dragan; Lušić, Dražen; Vahčić, Nada; Kopjar, Nevenka

(MDPI, 2023)

TY  - JOUR
AU  - Jurič, Andreja
AU  - Brčić Karačonji, Irena
AU  - Gašić, Uroš M.
AU  - Milojković-Opsenica, Dušanka
AU  - Prđun, Saša
AU  - Bubalo, Dragan
AU  - Lušić, Dražen
AU  - Vahčić, Nada
AU  - Kopjar, Nevenka
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5874
AB  - Strawberry tree (Arbutus unedo L.) honey (STH) has been used since ancient times as a folk medicine remedy, especially in certain Mediterranean countries. This honey, rich in phenolic content, is well recognized for its antioxidant, anti-inflammatory, and antimicrobial activities, and is used for the treatment of skin lesions as well as gastrointestinal and respiratory disorders. This study investigated whether STH alleviates genome damage in human peripheral blood lymphocytes produced by the cytotoxic drug irinotecan. The phenolic profile of STH was previously estimated by ultra-high-performance liquid chromatography coupled to a linear ion trap–Orbitrap hybrid mass spectrometer. The effects of STH were evaluated at three concentrations (1×, 5×, and 10×), based on the daily consumption of the honey by an adult person. After 2 h of in vitro exposure, standard lymphocyte cultures for the analysis of chromosome aberrations and the cytokinesis-block micronucleus cytome assay were established. Our results demonstrate that STH offered remarkable geno- and cytoprotection when administered with irinotecan. These findings are relevant for drawing preliminary conclusions regarding the in vitro safety of the tested honey. However, further studies are needed with the application of more complex experimental models.
PB  - MDPI
T2  - International Journal of Molecular Sciences
T1  - Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study
VL  - 24
IS  - 3
SP  - 1903
DO  - 10.3390/ijms24031903
ER  - 
@article{
author = "Jurič, Andreja and Brčić Karačonji, Irena and Gašić, Uroš M. and Milojković-Opsenica, Dušanka and Prđun, Saša and Bubalo, Dragan and Lušić, Dražen and Vahčić, Nada and Kopjar, Nevenka",
year = "2023",
abstract = "Strawberry tree (Arbutus unedo L.) honey (STH) has been used since ancient times as a folk medicine remedy, especially in certain Mediterranean countries. This honey, rich in phenolic content, is well recognized for its antioxidant, anti-inflammatory, and antimicrobial activities, and is used for the treatment of skin lesions as well as gastrointestinal and respiratory disorders. This study investigated whether STH alleviates genome damage in human peripheral blood lymphocytes produced by the cytotoxic drug irinotecan. The phenolic profile of STH was previously estimated by ultra-high-performance liquid chromatography coupled to a linear ion trap–Orbitrap hybrid mass spectrometer. The effects of STH were evaluated at three concentrations (1×, 5×, and 10×), based on the daily consumption of the honey by an adult person. After 2 h of in vitro exposure, standard lymphocyte cultures for the analysis of chromosome aberrations and the cytokinesis-block micronucleus cytome assay were established. Our results demonstrate that STH offered remarkable geno- and cytoprotection when administered with irinotecan. These findings are relevant for drawing preliminary conclusions regarding the in vitro safety of the tested honey. However, further studies are needed with the application of more complex experimental models.",
publisher = "MDPI",
journal = "International Journal of Molecular Sciences",
title = "Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study",
volume = "24",
number = "3",
pages = "1903",
doi = "10.3390/ijms24031903"
}
Jurič, A., Brčić Karačonji, I., Gašić, U. M., Milojković-Opsenica, D., Prđun, S., Bubalo, D., Lušić, D., Vahčić, N.,& Kopjar, N.. (2023). Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study. in International Journal of Molecular Sciences
MDPI., 24(3), 1903.
https://doi.org/10.3390/ijms24031903
Jurič A, Brčić Karačonji I, Gašić UM, Milojković-Opsenica D, Prđun S, Bubalo D, Lušić D, Vahčić N, Kopjar N. Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study. in International Journal of Molecular Sciences. 2023;24(3):1903.
doi:10.3390/ijms24031903 .
Jurič, Andreja, Brčić Karačonji, Irena, Gašić, Uroš M., Milojković-Opsenica, Dušanka, Prđun, Saša, Bubalo, Dragan, Lušić, Dražen, Vahčić, Nada, Kopjar, Nevenka, "Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study" in International Journal of Molecular Sciences, 24, no. 3 (2023):1903,
https://doi.org/10.3390/ijms24031903 . .
1
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Supplementary material for: Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study

Jurič, Andreja; Brčić Karačonji, Irena; Gašić, Uroš M.; Milojković-Opsenica, Dušanka; Prđun, Saša; Bubalo, Dragan; Lušić, Dražen; Vahčić, Nada; Kopjar, Nevenka

(MDPI, 2023)

TY  - DATA
AU  - Jurič, Andreja
AU  - Brčić Karačonji, Irena
AU  - Gašić, Uroš M.
AU  - Milojković-Opsenica, Dušanka
AU  - Prđun, Saša
AU  - Bubalo, Dragan
AU  - Lušić, Dražen
AU  - Vahčić, Nada
AU  - Kopjar, Nevenka
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5875
AB  - Strawberry tree (Arbutus unedo L.) honey (STH) has been used since ancient times as a folk medicine remedy, especially in certain Mediterranean countries. This honey, rich in phenolic content, is well recognized for its antioxidant, anti-inflammatory, and antimicrobial activities, and is used for the treatment of skin lesions as well as gastrointestinal and respiratory disorders. This study investigated whether STH alleviates genome damage in human peripheral blood lymphocytes produced by the cytotoxic drug irinotecan. The phenolic profile of STH was previously estimated by ultra-high-performance liquid chromatography coupled to a linear ion trap–Orbitrap hybrid mass spectrometer. The effects of STH were evaluated at three concentrations (1×, 5×, and 10×), based on the daily consumption of the honey by an adult person. After 2 h of in vitro exposure, standard lymphocyte cultures for the analysis of chromosome aberrations and the cytokinesis-block micronucleus cytome assay were established. Our results demonstrate that STH offered remarkable geno- and cytoprotection when administered with irinotecan. These findings are relevant for drawing preliminary conclusions regarding the in vitro safety of the tested honey. However, further studies are needed with the application of more complex experimental models.
PB  - MDPI
T2  - International Journal of Molecular Sciences
T1  - Supplementary material for: Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study
VL  - 24
IS  - 3
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5875
ER  - 
@misc{
author = "Jurič, Andreja and Brčić Karačonji, Irena and Gašić, Uroš M. and Milojković-Opsenica, Dušanka and Prđun, Saša and Bubalo, Dragan and Lušić, Dražen and Vahčić, Nada and Kopjar, Nevenka",
year = "2023",
abstract = "Strawberry tree (Arbutus unedo L.) honey (STH) has been used since ancient times as a folk medicine remedy, especially in certain Mediterranean countries. This honey, rich in phenolic content, is well recognized for its antioxidant, anti-inflammatory, and antimicrobial activities, and is used for the treatment of skin lesions as well as gastrointestinal and respiratory disorders. This study investigated whether STH alleviates genome damage in human peripheral blood lymphocytes produced by the cytotoxic drug irinotecan. The phenolic profile of STH was previously estimated by ultra-high-performance liquid chromatography coupled to a linear ion trap–Orbitrap hybrid mass spectrometer. The effects of STH were evaluated at three concentrations (1×, 5×, and 10×), based on the daily consumption of the honey by an adult person. After 2 h of in vitro exposure, standard lymphocyte cultures for the analysis of chromosome aberrations and the cytokinesis-block micronucleus cytome assay were established. Our results demonstrate that STH offered remarkable geno- and cytoprotection when administered with irinotecan. These findings are relevant for drawing preliminary conclusions regarding the in vitro safety of the tested honey. However, further studies are needed with the application of more complex experimental models.",
publisher = "MDPI",
journal = "International Journal of Molecular Sciences",
title = "Supplementary material for: Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study",
volume = "24",
number = "3",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5875"
}
Jurič, A., Brčić Karačonji, I., Gašić, U. M., Milojković-Opsenica, D., Prđun, S., Bubalo, D., Lušić, D., Vahčić, N.,& Kopjar, N.. (2023). Supplementary material for: Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study. in International Journal of Molecular Sciences
MDPI., 24(3).
https://hdl.handle.net/21.15107/rcub_cherry_5875
Jurič A, Brčić Karačonji I, Gašić UM, Milojković-Opsenica D, Prđun S, Bubalo D, Lušić D, Vahčić N, Kopjar N. Supplementary material for: Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study. in International Journal of Molecular Sciences. 2023;24(3).
https://hdl.handle.net/21.15107/rcub_cherry_5875 .
Jurič, Andreja, Brčić Karačonji, Irena, Gašić, Uroš M., Milojković-Opsenica, Dušanka, Prđun, Saša, Bubalo, Dragan, Lušić, Dražen, Vahčić, Nada, Kopjar, Nevenka, "Supplementary material for: Protective Effects of Arbutus unedo L. Honey in the Alleviation of Irinotecan-Induced Cytogenetic Damage in Human Lymphocytes—An In Vitro Study" in International Journal of Molecular Sciences, 24, no. 3 (2023),
https://hdl.handle.net/21.15107/rcub_cherry_5875 .

Protective role of strawberry tree (Arbutus unedo L.) honey against cyto/genotoxic effects induced by ultraviolet B radiation in vitro

Jurič, Andreja; Brčić Karačonji, Irena; Žunec, Suzana; Katić, Anja; Gašić, Uroš M.; Milojković-Opsenica, Dušanka; Kopjar, Nevenka

(Taylor and Francis, 2022)

TY  - JOUR
AU  - Jurič, Andreja
AU  - Brčić Karačonji, Irena
AU  - Žunec, Suzana
AU  - Katić, Anja
AU  - Gašić, Uroš M.
AU  - Milojković-Opsenica, Dušanka
AU  - Kopjar, Nevenka
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5199
AB  - Strawberry tree (Arbutus unedo L.) honey (STH) is widely used as part of traditional medicine
in the Mediterranean area, especially in the treatment of wounds, burns and infections. In
this study, we investigated the cyto-/genoprotective properties of STH at cell level following
short-term exposure to UVB radiation at 2 kJ/m2. Isolated human peripheral blood lymphocytes
(PBL) were selected as model cells. Phenolics in STH were determined using an ultrahigh-
performance liquid chromatograph (UHPLC) coupled to a linear ion trap-Orbitrap hybrid
mass spectrometer (LTQ Orbitrap MS), while homogentisic acid (HGA) was quantified using a
gas chromatograph-mass spectrometer (GC-MS). Primary DNA damage in PBLs treated with
STH before and after irradiation was assessed by alkaline comet assay, while their viability
was determined using the apoptosis/necrosis assay. The levels of thiobarbituric acid reactive
substances (TBARS) and glutathione (GSH) were determined in plasma samples. STH applied
as pre-treatment at a concentration equivalent to its average daily portion efficiently counteracted
the cytotoxic and genotoxic effects and diminished UVB-induced oxidative stress.
Post-radiation treatment with STH was not as beneficial. Protective effects could be associated
to the complex phytochemical profile of STH and the high content of HGA (306.8mg/
kg). It was confirmed that an intake of a complex mixture of bioactive constituents as STH
prior to potential cyto/genotoxic insults stimulated a broad-spectrum of protective mechanisms,
including intracellular antioxidative defence and DNA repair systems that helped pretreated
cells to counteract harmful exposures more efficiently.
PB  - Taylor and Francis
T2  - Journal of Apicultural Research
T1  - Protective role of strawberry tree (Arbutus unedo L.) honey against cyto/genotoxic effects induced by ultraviolet B radiation in vitro
SP  - 1
EP  - 10
DO  - 10.1080/00218839.2022.2047421
ER  - 
@article{
author = "Jurič, Andreja and Brčić Karačonji, Irena and Žunec, Suzana and Katić, Anja and Gašić, Uroš M. and Milojković-Opsenica, Dušanka and Kopjar, Nevenka",
year = "2022",
abstract = "Strawberry tree (Arbutus unedo L.) honey (STH) is widely used as part of traditional medicine
in the Mediterranean area, especially in the treatment of wounds, burns and infections. In
this study, we investigated the cyto-/genoprotective properties of STH at cell level following
short-term exposure to UVB radiation at 2 kJ/m2. Isolated human peripheral blood lymphocytes
(PBL) were selected as model cells. Phenolics in STH were determined using an ultrahigh-
performance liquid chromatograph (UHPLC) coupled to a linear ion trap-Orbitrap hybrid
mass spectrometer (LTQ Orbitrap MS), while homogentisic acid (HGA) was quantified using a
gas chromatograph-mass spectrometer (GC-MS). Primary DNA damage in PBLs treated with
STH before and after irradiation was assessed by alkaline comet assay, while their viability
was determined using the apoptosis/necrosis assay. The levels of thiobarbituric acid reactive
substances (TBARS) and glutathione (GSH) were determined in plasma samples. STH applied
as pre-treatment at a concentration equivalent to its average daily portion efficiently counteracted
the cytotoxic and genotoxic effects and diminished UVB-induced oxidative stress.
Post-radiation treatment with STH was not as beneficial. Protective effects could be associated
to the complex phytochemical profile of STH and the high content of HGA (306.8mg/
kg). It was confirmed that an intake of a complex mixture of bioactive constituents as STH
prior to potential cyto/genotoxic insults stimulated a broad-spectrum of protective mechanisms,
including intracellular antioxidative defence and DNA repair systems that helped pretreated
cells to counteract harmful exposures more efficiently.",
publisher = "Taylor and Francis",
journal = "Journal of Apicultural Research",
title = "Protective role of strawberry tree (Arbutus unedo L.) honey against cyto/genotoxic effects induced by ultraviolet B radiation in vitro",
pages = "1-10",
doi = "10.1080/00218839.2022.2047421"
}
Jurič, A., Brčić Karačonji, I., Žunec, S., Katić, A., Gašić, U. M., Milojković-Opsenica, D.,& Kopjar, N.. (2022). Protective role of strawberry tree (Arbutus unedo L.) honey against cyto/genotoxic effects induced by ultraviolet B radiation in vitro. in Journal of Apicultural Research
Taylor and Francis., 1-10.
https://doi.org/10.1080/00218839.2022.2047421
Jurič A, Brčić Karačonji I, Žunec S, Katić A, Gašić UM, Milojković-Opsenica D, Kopjar N. Protective role of strawberry tree (Arbutus unedo L.) honey against cyto/genotoxic effects induced by ultraviolet B radiation in vitro. in Journal of Apicultural Research. 2022;:1-10.
doi:10.1080/00218839.2022.2047421 .
Jurič, Andreja, Brčić Karačonji, Irena, Žunec, Suzana, Katić, Anja, Gašić, Uroš M., Milojković-Opsenica, Dušanka, Kopjar, Nevenka, "Protective role of strawberry tree (Arbutus unedo L.) honey against cyto/genotoxic effects induced by ultraviolet B radiation in vitro" in Journal of Apicultural Research (2022):1-10,
https://doi.org/10.1080/00218839.2022.2047421 . .
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In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes

Jurica, Karlo; Brčić-Karačonji, Irena; Mikolić, Anja; Milojković-Opsenica, Dušanka; Benković, Vesna; Kopjar, Nevenka

(Springer, Dordrecht, 2018)

TY  - JOUR
AU  - Jurica, Karlo
AU  - Brčić-Karačonji, Irena
AU  - Mikolić, Anja
AU  - Milojković-Opsenica, Dušanka
AU  - Benković, Vesna
AU  - Kopjar, Nevenka
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2194
AB  - Strawberry tree (Arbutus unedo L.) leaves have long been used in the traditional medicine of the Mediterranean region. One of their most bioactive constituents is the glycoside arbutin, whose presence makes A. unedo suitable as a potential substitute for bearberry [Arctostaphylos uva ursi (L.) Spreng] leaves, an herbal preparation widely used for treating urinary tract infections. The safety and biocompatibility of strawberry tree water leaf extract have not yet been documented well. This study estimated arbutin content in strawberry tree water leaf extract (STE) using high performance liquid chromatography. Furthermore, we performed an in vitro safety assessment of the 24 h exposure to three presumably non-toxic concentrations of standardized STE and arbutin in human peripheral blood lymphocytes using the apoptosis/necrosis assay, the alkaline comet assay, and the cytokinesis-block micronucleus cytome assay. The STE was also tested for total antioxidant capacity and lipid peroxidation. At a concentration corresponding to the maximum allowable daily intake of arbutin, the tested extract was not cytotoxic, had a negligible potential for causing primary DNA damage and even hindered micronuclei formation in lymphocytes. It also showed a valuable antioxidant capacity, and did not exert marked lipid peroxidation. These promising results represent a solid frame for further development of STE-based herbal preparations. Although arbutin generally had a low DNA damaging potential, the slowing down of lymphocyte proliferation observed after 24 h of exposure points to a cytostatic effect, which merits further research.
PB  - Springer, Dordrecht
T2  - Cytotechnology
T1  - In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes
VL  - 70
IS  - 4
SP  - 1261
EP  - 1278
DO  - 10.1007/s10616-018-0218-4
ER  - 
@article{
author = "Jurica, Karlo and Brčić-Karačonji, Irena and Mikolić, Anja and Milojković-Opsenica, Dušanka and Benković, Vesna and Kopjar, Nevenka",
year = "2018",
abstract = "Strawberry tree (Arbutus unedo L.) leaves have long been used in the traditional medicine of the Mediterranean region. One of their most bioactive constituents is the glycoside arbutin, whose presence makes A. unedo suitable as a potential substitute for bearberry [Arctostaphylos uva ursi (L.) Spreng] leaves, an herbal preparation widely used for treating urinary tract infections. The safety and biocompatibility of strawberry tree water leaf extract have not yet been documented well. This study estimated arbutin content in strawberry tree water leaf extract (STE) using high performance liquid chromatography. Furthermore, we performed an in vitro safety assessment of the 24 h exposure to three presumably non-toxic concentrations of standardized STE and arbutin in human peripheral blood lymphocytes using the apoptosis/necrosis assay, the alkaline comet assay, and the cytokinesis-block micronucleus cytome assay. The STE was also tested for total antioxidant capacity and lipid peroxidation. At a concentration corresponding to the maximum allowable daily intake of arbutin, the tested extract was not cytotoxic, had a negligible potential for causing primary DNA damage and even hindered micronuclei formation in lymphocytes. It also showed a valuable antioxidant capacity, and did not exert marked lipid peroxidation. These promising results represent a solid frame for further development of STE-based herbal preparations. Although arbutin generally had a low DNA damaging potential, the slowing down of lymphocyte proliferation observed after 24 h of exposure points to a cytostatic effect, which merits further research.",
publisher = "Springer, Dordrecht",
journal = "Cytotechnology",
title = "In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes",
volume = "70",
number = "4",
pages = "1261-1278",
doi = "10.1007/s10616-018-0218-4"
}
Jurica, K., Brčić-Karačonji, I., Mikolić, A., Milojković-Opsenica, D., Benković, V.,& Kopjar, N.. (2018). In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes. in Cytotechnology
Springer, Dordrecht., 70(4), 1261-1278.
https://doi.org/10.1007/s10616-018-0218-4
Jurica K, Brčić-Karačonji I, Mikolić A, Milojković-Opsenica D, Benković V, Kopjar N. In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes. in Cytotechnology. 2018;70(4):1261-1278.
doi:10.1007/s10616-018-0218-4 .
Jurica, Karlo, Brčić-Karačonji, Irena, Mikolić, Anja, Milojković-Opsenica, Dušanka, Benković, Vesna, Kopjar, Nevenka, "In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes" in Cytotechnology, 70, no. 4 (2018):1261-1278,
https://doi.org/10.1007/s10616-018-0218-4 . .
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