TY  - JOUR
AU  - Jurič, Andreja
AU  - Brčić Karačonji, Irena
AU  - Gašić, Uroš
AU  - Milojković Opsenica, Dušanka
AU  - Prđun, Saša
AU  - Bubalo, Dragan
AU  - Lušić, Dražen
AU  - Vahčić, Nada
AU  - Kopjar, Nevenka
PY  - 2023
UR  - https://www.mdpi.com/1422-0067/24/3/1903
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC9916164
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5483
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  - Basel: 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
IS  - 3
VL  - 24
DO  - 10.3390/ijms24031903
SP  - 1903
ER  - 

@article{
author = "Jurič, Andreja and Brčić Karačonji, Irena and Gašić, Uroš 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 = "Basel: 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",
number = "3",
volume = "24",
doi = "10.3390/ijms24031903",
pages = "1903"
}

Jurič, A., Brčić Karačonji, I., Gašić, U., 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
Basel: MDPI., 24(3), 1903.
https://doi.org/10.3390/ijms24031903

Jurič A, Brčić Karačonji I, Gašić U, 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, 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 . .

TY  - JOUR
AU  - Jurič, Andreja
AU  - Brčić Karačonji, Irena
AU  - Žunec, Suzana
AU  - Katić, Anja
AU  - Gašić, Uroš
AU  - Milojković Opsenica, Dušanka
AU  - Kopjar, Nevenka
PY  - 2022
UR  - https://www.tandfonline.com/doi/full/10.1080/00218839.2022.2047421
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4949
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 ultra-high-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 (306.8 mg/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 pre-treated cells to counteract harmful exposures more efficiently.
PB  - Taylor and Francis Ltd.
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
DO  - 10.1080/00218839.2022.2047421
SP  - 1
EP  - 10
ER  - 

@article{
author = "Jurič, Andreja and Brčić Karačonji, Irena and Žunec, Suzana and Katić, Anja and Gašić, Uroš 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 ultra-high-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 (306.8 mg/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 pre-treated cells to counteract harmful exposures more efficiently.",
publisher = "Taylor and Francis Ltd.",
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",
doi = "10.1080/00218839.2022.2047421",
pages = "1-10"
}

Jurič, A., Brčić Karačonji, I., Žunec, S., Katić, A., Gašić, U., 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 Ltd.., 1-10.
https://doi.org/10.1080/00218839.2022.2047421

Jurič A, Brčić Karačonji I, Žunec S, Katić A, Gašić U, 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, 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 . .

TY  - JOUR
AU  - Brčić Karačonji, Irena
AU  - Jurica, Karlo
AU  - Gašić, Uroš
AU  - Dramićanin, Aleksandra
AU  - Tešić, Živoslav
AU  - Milojković Opsenica, Dušanka
PY  - 2022
UR  - https://www.mdpi.com/2223-7747/11/1/25
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC8747429
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4758
AB  - The strawberry tree (Arbutus unedo L., Ericaceae family) is an evergreen Mediterranean shrub whose leaves and fruits are used in traditional medicine due to their antioxidant, antimicrobial, antidiabetic, diuretic, and antiproliferative properties. The health benefits are mainly attributed to the presence of phenolic compounds. The aim of this study was to compare the phenolic profiles, total phenolic content (TPC), and radical scavenging activity (RSA) of A. unedo leaves and fruits collected at two locations in Croatia. Phenolic profiles were identified using an ultra-high-performance liquid chromatograph (UHPLC) coupled with a hybrid mass spectrometer (LTQ Orbitrap MS). TPC was determined by Folin-Ciocalteu's assay, while RSA was investigated using DPPH reagent. A total of 64 phenolics (60 and 42 compounds in leaves and fruits, respectively) were identified. Hyperoside and flavan-3-ols were predominant compounds in leaves, while gallocatechin and catechin were the major compounds found in fruits. To the authors' knowledge, 16 and 5 phenolics in leaves and fruits, respectively, were reported for the first time. Principal component analysis (PCA) showed that UHPLC-LTQ Orbitrap MS could be used to identify which phenolics were able to discriminate samples regarding plant tissue and geographical origin. TPC in leaves and fruits were in the ranges of 67.07-104.74 and 16.78-25.86 mg gallic acid equivalents (GAE)/g dried weight (dw), respectively. RSA for leaves and fruits were in the ranges of 408.92-430.98 and 74.30-104.04 μmol Trolox equivalents (TE)/g dw, respectively. The number of identified phenolics was lower in fruits compared to leaves. Such a large number of bioactive phenolics identified and the strong antioxidant activity pointed to A. unedo as a promising health-promoting plant and natural food preservative.
PB  - Basel: MDPI
T2  - Plants (Basel, Switzerland)
T1  - Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits.
IS  - 1
VL  - 11
DO  - 10.3390/plants11010025
SP  - 25
ER  - 

@article{
author = "Brčić Karačonji, Irena and Jurica, Karlo and Gašić, Uroš and Dramićanin, Aleksandra and Tešić, Živoslav and Milojković Opsenica, Dušanka",
year = "2022",
abstract = "The strawberry tree (Arbutus unedo L., Ericaceae family) is an evergreen Mediterranean shrub whose leaves and fruits are used in traditional medicine due to their antioxidant, antimicrobial, antidiabetic, diuretic, and antiproliferative properties. The health benefits are mainly attributed to the presence of phenolic compounds. The aim of this study was to compare the phenolic profiles, total phenolic content (TPC), and radical scavenging activity (RSA) of A. unedo leaves and fruits collected at two locations in Croatia. Phenolic profiles were identified using an ultra-high-performance liquid chromatograph (UHPLC) coupled with a hybrid mass spectrometer (LTQ Orbitrap MS). TPC was determined by Folin-Ciocalteu's assay, while RSA was investigated using DPPH reagent. A total of 64 phenolics (60 and 42 compounds in leaves and fruits, respectively) were identified. Hyperoside and flavan-3-ols were predominant compounds in leaves, while gallocatechin and catechin were the major compounds found in fruits. To the authors' knowledge, 16 and 5 phenolics in leaves and fruits, respectively, were reported for the first time. Principal component analysis (PCA) showed that UHPLC-LTQ Orbitrap MS could be used to identify which phenolics were able to discriminate samples regarding plant tissue and geographical origin. TPC in leaves and fruits were in the ranges of 67.07-104.74 and 16.78-25.86 mg gallic acid equivalents (GAE)/g dried weight (dw), respectively. RSA for leaves and fruits were in the ranges of 408.92-430.98 and 74.30-104.04 μmol Trolox equivalents (TE)/g dw, respectively. The number of identified phenolics was lower in fruits compared to leaves. Such a large number of bioactive phenolics identified and the strong antioxidant activity pointed to A. unedo as a promising health-promoting plant and natural food preservative.",
publisher = "Basel: MDPI",
journal = "Plants (Basel, Switzerland)",
title = "Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits.",
number = "1",
volume = "11",
doi = "10.3390/plants11010025",
pages = "25"
}

Brčić Karačonji, I., Jurica, K., Gašić, U., Dramićanin, A., Tešić, Ž.,& Milojković Opsenica, D.. (2022). Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits.. in Plants (Basel, Switzerland)
Basel: MDPI., 11(1), 25.
https://doi.org/10.3390/plants11010025

Brčić Karačonji I, Jurica K, Gašić U, Dramićanin A, Tešić Ž, Milojković Opsenica D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits.. in Plants (Basel, Switzerland). 2022;11(1):25.
doi:10.3390/plants11010025 .

Brčić Karačonji, Irena, Jurica, Karlo, Gašić, Uroš, Dramićanin, Aleksandra, Tešić, Živoslav, Milojković Opsenica, Dušanka, "Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits." in Plants (Basel, Switzerland), 11, no. 1 (2022):25,
https://doi.org/10.3390/plants11010025 . .

TY  - JOUR
AU  - Jurič, Andreja
AU  - Gašić, Uroš
AU  - Brčić Karačonji, Irena
AU  - Jurica, Karlo
AU  - Milojković-Opsenica, Dušanka
PY  - 2020
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3688
AB  - Despite of the many beneficial health effects of strawberry tree (Arbutus unedo L.) honey due to its strong antioxidant activity derived mostly from polyphenols, a detailed phenolic profile has not been previously studied. The aims of this study were to identify the phenolic compounds, determine the total phenolic content (TPC) and evaluate the radical scavenging activity (RSA) of strawberry tree honey from south Croatia. Fifty-two polyphenolics (twenty-seven phenolic acids and twenty-five flavonoids) were identified using ultra-high-performance liquid chromatograph (UHPLC) coupled to a hybrid mass spectrometer (LTQ Orbitrap MS). Our overall results point to higher TPC (1038 mg gallic acid equivalents per kg of honey) and stronger RSA (3.32 mmol Trolox equivalents per kg of honey) compared to other monofloral honeys. Due to the presence of large quantities of polyphenolic compounds, strawberry tree honey may have great potential as a health promoting food. Line
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The phenolic profile of strawberry tree (Arbutus unedo L.) honey
IS  - 8
VL  - 85
DO  - 10.2298/JSC191217018J
SP  - 1011
EP  - 1019
ER  - 

@article{
author = "Jurič, Andreja and Gašić, Uroš and Brčić Karačonji, Irena and Jurica, Karlo and Milojković-Opsenica, Dušanka",
year = "2020",
abstract = "Despite of the many beneficial health effects of strawberry tree (Arbutus unedo L.) honey due to its strong antioxidant activity derived mostly from polyphenols, a detailed phenolic profile has not been previously studied. The aims of this study were to identify the phenolic compounds, determine the total phenolic content (TPC) and evaluate the radical scavenging activity (RSA) of strawberry tree honey from south Croatia. Fifty-two polyphenolics (twenty-seven phenolic acids and twenty-five flavonoids) were identified using ultra-high-performance liquid chromatograph (UHPLC) coupled to a hybrid mass spectrometer (LTQ Orbitrap MS). Our overall results point to higher TPC (1038 mg gallic acid equivalents per kg of honey) and stronger RSA (3.32 mmol Trolox equivalents per kg of honey) compared to other monofloral honeys. Due to the presence of large quantities of polyphenolic compounds, strawberry tree honey may have great potential as a health promoting food. Line",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The phenolic profile of strawberry tree (Arbutus unedo L.) honey",
number = "8",
volume = "85",
doi = "10.2298/JSC191217018J",
pages = "1011-1019"
}

Jurič, A., Gašić, U., Brčić Karačonji, I., Jurica, K.,& Milojković-Opsenica, D.. (2020). The phenolic profile of strawberry tree (Arbutus unedo L.) honey. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 85(8), 1011-1019.
https://doi.org/10.2298/JSC191217018J

Jurič A, Gašić U, Brčić Karačonji I, Jurica K, Milojković-Opsenica D. The phenolic profile of strawberry tree (Arbutus unedo L.) honey. in Journal of the Serbian Chemical Society. 2020;85(8):1011-1019.
doi:10.2298/JSC191217018J .

Jurič, Andreja, Gašić, Uroš, Brčić Karačonji, Irena, Jurica, Karlo, Milojković-Opsenica, Dušanka, "The phenolic profile of strawberry tree (Arbutus unedo L.) honey" in Journal of the Serbian Chemical Society, 85, no. 8 (2020):1011-1019,
https://doi.org/10.2298/JSC191217018J . .