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Chua RW, Song KP, Ting ASY. Comparative analysis of antimicrobial compounds from endophytic Buergenerula spartinae from orchid. Antonie Van Leeuwenhoek 2023; 116:1057-1072. [PMID: 37597137 DOI: 10.1007/s10482-023-01870-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/08/2023] [Indexed: 08/21/2023]
Abstract
A rare fungal endophyte, identified as Buergenerula spartinae (C28), was isolated from the roots of Cymbidium orchids and was characterised and evaluated for its antimicrobial activities. Bio-guided fractionation revealed 4 fractions from B. spartinae (C28) having antibacterial activities against at least one bacterial pathogen tested (Bacillus cereus and Staphylococcus aureus). However, inhibitory activities were absent against pathogenic fungi (Ganoderma boninense, Pythium ultimum and Fusarium solani). Fraction 2 and fraction 4 of B. spartinae (C28) exhibited potent antibacterial activities against S. aureus (MIC: 0.078 mg/mL) and B. cereus (MIC: 0.313 mg/mL), respectively. LCMS analysis revealed the presence of antibacterial agents and antibiotics in fraction 2 (benoxinate, pyropheophorbide A, (-)-ormosanine and N-undecylbenzenesulfonic acid) and fraction 4 (kaempferol 3-p-coumarate, 6-methoxy naphthalene acetic acid, levofuraltadone, hinokitiol glucoside, 3-α(S)-strictosidine, pyropheophorbide A, 5'-hydroxystreptomycin, kanzonol N and 3-butylidene-7-hydroxyphthalide), which may be responsible for the antibacterial activities observed. Most of the bioactive compounds profiled from the antibacterial fractions were discovered for the first time from endophytic isolates (i.e. from B. spartinae (C28)). Buergenerula spartinae (C28) from Cymbidium sp. is therefore, an untapped resource of bioactive compounds for potential applications in healthcare and commercial industries.
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Affiliation(s)
- Ru Wei Chua
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Keang Peng Song
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Adeline Su Yien Ting
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia.
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2
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Quinoline Derivatives with Different Functional Groups: Evaluation of Their Catecholase Activity. Catalysts 2022. [DOI: 10.3390/catal12111468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this work, we are interested in finding new catalysts for catecholase, whose principle is based on the oxidation reaction of catechol to o-quinone. In this context, we have studied a series of seven quinoline-based compounds. The present work indicates that the complexes formed between seven selected quinoline compounds and the copper salts viz. Cu(OAc)2, CuSO4, Cu(NO3)2, and CuCl2 elicit catalytic activities for the oxidation of catechol to o-quinone. The complexes formed with the Cu(OAc)2 salt show a much higher catalytic activity than the others, whereas the Cu(NO3)2 and CuCl2 salts formed complexes with low catalytic activity. This study also shows that the oxidation rate depends on two factors, namely the chemical structure of the ligands and the nature of the ions coordinated with the copper.
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3
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Gauff RPM, Lejeusne C, Greff S, Loisel S, Bohner O, Davoult D. Impact of in Situ Simulated Climate Change on Communities and Non-Indigenous Species: Two Climates, Two Responses. J Chem Ecol 2022; 48:761-771. [PMID: 36100819 DOI: 10.1007/s10886-022-01380-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/21/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022]
Abstract
Climate change constitutes a major challenge for marine urban ecosystems and ocean warming will likely strongly affect local communities. Non-Indigenous Species (NIS) have been shown to often have higher heat resistance than natives, but studies investigating how forthcoming global warming might affect them in marine urban environments remain scarce, especially in Situ studies. Here we used an in Situ warming experiment in a NW Mediterranean (warm temperate) and a NE Atlantic (cold temperate) marina to see how global warming might affect recruited communities in the near future. In both marinas, warming resulted in significantly different community structure, lower biomass, and more empty space compared to control. However, while in the warm temperate marina, NIS showed an increased surface cover, it was reduced in the cold temperate one. Metabolomic analyses on Bugula neritina in the Atlantic marina revealed potential heat stress experienced by this introduced bryozoan and a potential link between heat stress and the expression of a halogenated alkaloid, Caelestine A. The present results might indicate that the effects of global warming on the prevalence of NIS may differ between geographical provinces, which could be investigated by larger scale studies.
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Affiliation(s)
- Robin P M Gauff
- Adaptation et Diversité en Milieu Marin, Sorbonne Université, CNRS, UMR 7144, Station Biologique Roscoff, Place Georges Teissier, 29680, Roscoff, France.
| | - Christophe Lejeusne
- Aix Marseille Univ, CNRS, IRD, Avignon Université, IMBE, UMR 7263, Station Marine d'Endoume, Rue de la Batterie des Lions, 13007, Marseille, France
| | - Stephane Greff
- Aix Marseille Univ, CNRS, IRD, Avignon Université, IMBE, UMR 7263, Station Marine d'Endoume, Rue de la Batterie des Lions, 13007, Marseille, France
| | - Stephane Loisel
- Adaptation et Diversité en Milieu Marin, Sorbonne Université, CNRS, UMR 7144, Station Biologique Roscoff, Place Georges Teissier, 29680, Roscoff, France
| | - Olivier Bohner
- Adaptation et Diversité en Milieu Marin, Sorbonne Université, CNRS, UMR 7144, Station Biologique Roscoff, Place Georges Teissier, 29680, Roscoff, France
| | - Dominique Davoult
- Adaptation et Diversité en Milieu Marin, Sorbonne Université, CNRS, UMR 7144, Station Biologique Roscoff, Place Georges Teissier, 29680, Roscoff, France
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Vaksler Y, Hryhoriv HV, Kovalenko SM, Perekhoda LO, Georgiyants VA. Synthesis, X-ray diffraction study, analysis of intermolecular interactions and molecular docking of ethyl 1-(3-tosylquinolin-4-yl)piperidine-4-carboxylate. Acta Crystallogr E Crystallogr Commun 2022; 78:890-896. [PMID: 36072518 PMCID: PMC9443802 DOI: 10.1107/s2056989022007691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022]
Abstract
An easy synthetic route towards ethyl 1-(3-tosylquinolin-4-yl)piperidine-4-carboxylate was found. Its molecular and crystal structures are described as well and the biological activity is also predicted using molecular docking studies. The title compound, C24H26N2O4S, can be obtained via two synthetic routes. According to our investigations, the most suitable way is by the reaction of ethyl 2-bromoacetate with sodium tosylsulfinate in dry DMF. It was crystallized from methanol into the monoclinic P21/n space group with a single molecule in the asymmetric unit. Hirshfeld surface analysis was performed to define the hydrogen bonds and analysis of the two-dimensional fingerprint plots was used to distinguish the different types of interactions. Two very weak non-classical C—H⋯O hydrogen bonds were found and the contributions of short contacts to the Hirshfeld surface were determined. Molecules form an isotropic network of intermolecular interactions according to an analysis of the pairwise interaction energies. A molecular docking study evaluated the interactions in the title compound with the active centers of macromolecules of bacterial targets (Staphylococcus aureus DNA Gyrase PDB ID: 2XCR, Mycobacterium tuberculosis topoisomerase II PDB ID: 5BTL, Streptococcus pneumoniae topoisomerase IV PDB ID: 4KPF) and revealed high affinity towards them that exceeded the reference antibiotics of the fluoroquinolone group.
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Luo X, Zhao Y, Tao S, Yang ZT, Luo H, Yang W. A simple and efficient copper-catalyzed three-component reaction to synthesize ( Z)-1,2-dihydro-2-iminoquinolines. RSC Adv 2021; 11:31152-31158. [PMID: 35496874 PMCID: PMC9041411 DOI: 10.1039/d1ra06330h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
A operationally simple synthesis of (Z)-1,2-dihydro-2-iminoquinolines that proceeds under mild conditions is achieved by copper-catalyzed reaction of 1-(2-aminophenyl)ethan-1-ones, sulfonyl azides and terminal ynones. In particular, the reaction goes through a base-free CuAAC/ring-opening process to obtain the Z-configured products due to hydrogen bonding.
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Affiliation(s)
- Xiai Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Department of Pharmacy, Hunan University of Medicine Huaihua 418000 China
| | - Yu Zhao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Susu Tao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Zhong-Tao Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China
| | - Hui Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
| | - Weiguang Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
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Zaki I, Ramadan HMM, El-Sayed ESH, Abd El-Moneim M. Design, synthesis, and cytotoxicity screening of new synthesized imidazolidine-2-thiones as VEGFR-2 enzyme inhibitors. Arch Pharm (Weinheim) 2020; 353:e2000121. [PMID: 32757353 DOI: 10.1002/ardp.202000121] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/06/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
A series of imidazolin-2-thione derivatives was synthesized and structurally confirmed through the use of different spectroscopic techniques such as infrared, nuclear magnetic resonance, and mass spectrometry along with elemental analyses. The breast cancer cell line MCF-7 was utilized in the evaluation of the cytotoxic activity of the prepared molecules. The tested molecules 3 and 7 exhibited the best results on MCF-7 cells, with mean IC50 values of 3.26 and 4.31 µM, respectively. The results of the VEGFR-2 assay indicated that compounds 3 and 7 displayed a good inhibition of the VEGFR-2 kinase enzyme. Additionally, DNA flow cytometry of compounds 3 and 7 showed cell cycle arrest at the G0/G1 phase, cell apoptosis, and marked DNA fragmentation in MCF-7 cells. Finally, compounds 3 and 7 were proved to upregulate the activation of effector caspase-3/7, as presented by the caspase-3/7 green flow cytometry assay.
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Affiliation(s)
- Islam Zaki
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Heba M M Ramadan
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
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7
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Deng Z, Zhou D. Mechanisms of Csp
2
–H functionalization of aldehydes with triplet O
2
catalyzed by NHPI: A density functional theory investigation. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhe‐Peng Deng
- Research Institute Lanzhou Jiaotong University Lanzhou China
| | - Da‐Gang Zhou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, Institute of Synthesis and Application of Functional Materials, College of Chemistry and Chemical Engineering China West Normal University Nanchong China
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Abdelbaset MS, Abdel-Aziz M, Ramadan M, Abdelrahman MH, Abbas Bukhari SN, Ali TF, Abuo-Rahma GEDA. Discovery of novel thienoquinoline-2-carboxamide chalcone derivatives as antiproliferative EGFR tyrosine kinase inhibitors. Bioorg Med Chem 2019; 27:1076-1086. [DOI: 10.1016/j.bmc.2019.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/03/2019] [Accepted: 02/04/2019] [Indexed: 12/13/2022]
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9
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Srivastava D, Verma G, Chauhan AS, Pande V, Chakrabarty D. Rice (Oryza sativa L.) tau class glutathione S-transferase (OsGSTU30) overexpression in Arabidopsis thaliana modulates a regulatory network leading to heavy metal and drought stress tolerance. Metallomics 2019; 11:375-389. [PMID: 30516767 DOI: 10.1039/c8mt00204e] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OsGSTU30 increases the abiotic stress tolerance in plants either by its catalytic activity or by modulating the expression of stress responsive genes.
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Affiliation(s)
- Dipali Srivastava
- Genetics and Molecular Biology Division
- CSIR-National Botanical Research Institute
- India
- Department of Biotechnology
- Kumaun University
| | - Giti Verma
- Genetics and Molecular Biology Division
- CSIR-National Botanical Research Institute
- India
| | | | - Veena Pande
- Department of Biotechnology
- Kumaun University
- India
| | - Debasis Chakrabarty
- Genetics and Molecular Biology Division
- CSIR-National Botanical Research Institute
- India
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10
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Abdelbaset MS, Abdel-Aziz M, Abuo-Rahma GEDA, Abdelrahman MH, Ramadan M, Youssif BGM. Novel quinoline derivatives carrying nitrones/oximes nitric oxide donors: Design, synthesis, antiproliferative and caspase-3 activation activities. Arch Pharm (Weinheim) 2018; 352:e1800270. [PMID: 30500087 DOI: 10.1002/ardp.201800270] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/21/2018] [Accepted: 10/30/2018] [Indexed: 11/11/2022]
Abstract
Novel quinoline derivatives carrying nitrones and oxime as nitric oxide donors were prepared and characterized using different spectroscopic techniques. Nitrones can release nitric oxide in larger amounts compared to corresponding oximes. Antiproliferative screening results showed that the 2-benzylthioquinoline nitrones 6e and 6f and the 2-methylthio analogues 6g and 6h exhibited promising antiproliferative activity especially against leukemia and colon cancer cell lines. Compounds 6c, 6e, and 6f exhibited higher potency as anticancer agents compared to doxorubicin, with IC50 ranging from 0.45 to 0.91 μM. A remarkable overexpression of caspase-3 protein levels was observed in cells treated with the tested compounds. Compound 6e exhibited more pre-G1 apoptosis and cell cycle arrest at the G2/M phase than in other phases. These results revealed that the tested compounds can cause programmed cell death through overexpression of caspase 3, which may be attributed to the release of nitric oxide.
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Affiliation(s)
- Mahmoud S Abdelbaset
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry, Al-Azhar University, Assiut, Egypt
| | - Mohamed Abdel-Aziz
- Faculty of Pharmacy, Department of Medicinal Chemistry, Minia University, Minia, Egypt
| | | | - Mostafa H Abdelrahman
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry, Al-Azhar University, Assiut, Egypt
| | - Mohamed Ramadan
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry, Al-Azhar University, Assiut, Egypt
| | - Bahaa G M Youssif
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry, Assiut University, Assiut, Egypt.,Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
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11
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Abdelbaset MS, Abuo-Rahma GEDA, Abdelrahman MH, Ramadan M, Youssif BG, Bukhari SNA, Mohamed MF, Abdel-Aziz M. Novel pyrrol-2(3H)-ones and pyridazin-3(2H)-ones carrying quinoline scaffold as anti-proliferative tubulin polymerization inhibitors. Bioorg Chem 2018; 80:151-163. [DOI: 10.1016/j.bioorg.2018.06.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
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12
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Govender H, Mocktar C, Koorbanally NA. Synthesis and Bioactivity of Quinoline-3-carboxamide Derivatives. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3132] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Hogantharanni Govender
- School of Chemistry and Physics and School of Health Sciences; University of KwaZulu-Natal; Private Bag X54001 Durban 4000 South Africa
| | - Chunderika Mocktar
- School of Chemistry and Physics and School of Health Sciences; University of KwaZulu-Natal; Private Bag X54001 Durban 4000 South Africa
| | - Neil A. Koorbanally
- School of Chemistry and Physics and School of Health Sciences; University of KwaZulu-Natal; Private Bag X54001 Durban 4000 South Africa
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Baier A, Nazaruk J, Galicka A, Szyszka R. Inhibitory influence of natural flavonoids on human protein kinase CK2 isoforms: effect of the regulatory subunit. Mol Cell Biochem 2017; 444:35-42. [PMID: 29188536 PMCID: PMC6002439 DOI: 10.1007/s11010-017-3228-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 11/24/2017] [Indexed: 11/25/2022]
Abstract
CK2 is a pleiotropic, constitutively active protein kinase responsible for the phosphorylation of more than 300 physiological substrates. Typically, this enzyme is found in tetrameric form consisting of two regulatory subunits CK2β and two catalytic subunits CK2α or CK2α′. Several natural occurring flavonoids were tested for their ability to inhibit both CK2 holoenzymes, CK2α2β2 and CK2α′2β2. We identified few substances selectively inhibiting only the α′ subunit. Other compounds showed similar effect towards all four isoforms. In some cases, like chrysoeriol, pedalitin, apigenin, and luteolin, the α2β2 holoenzyme was at least six times better inhibited than the free α subunit. Otherwise, we have found a luteolin derivative decreased the kinase activity of CK2α′ with an IC50 value of 0.8 μM, but the holoenzyme only with 9.5 µM.
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Affiliation(s)
- Andrea Baier
- Department of Molecular Biology, The John Paul II Catholic University of Lublin, ul. Konstantynow 1i, 20-708, Lublin, Poland.
| | - Jolanta Nazaruk
- Department of Pharmacognosy, Medical University of Białystok, ul. Mickiewicza 2a, 15-089, Białystok, Poland
| | - Anna Galicka
- Department of Medical Chemistry, Medical University of Białystok, ul. Mickiewicza 2a, 15-089, Białystok, Poland
| | - Ryszard Szyszka
- Department of Molecular Biology, The John Paul II Catholic University of Lublin, ul. Konstantynow 1i, 20-708, Lublin, Poland
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