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Tong WH, Wang SQ, Chen GY, Li DX, Wang YS, Zhao LM, Yang Y. Characterization of the structural and molecular interactions of Ferulic acid ethyl ester with human serum albumin and Lysozyme through multi-methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124549. [PMID: 38870694 DOI: 10.1016/j.saa.2024.124549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 05/22/2024] [Accepted: 05/26/2024] [Indexed: 06/15/2024]
Abstract
Ferulic acid ethyl ester (FAEE) is an essential raw material for the formulation of drugs for cardiovascular and cerebrovascular diseases and leukopenia. It is also used as a fixed aroma agent for food production due to its high pharmacological activity. In this study, the interaction of FAEE with Human serum albumin (HSA) and Lysozyme (LZM) was characterized by multi-spectrum and molecular dynamics simulations at four different temperatures. Additionally, the quenching mechanism of FAEE-HSA and FAEE-LZM were explored. Meanwhile, the binding constants, binding sites, thermodynamic parameters, molecular dynamics, molecular docking binding energy, and the influence of metal ions in the system were evaluated. The results of Synchronous fluorescence spectroscopy, UV-vis spectroscopy, CD, three-dimensional fluorescence spectrum, and resonance light scattering showed that the microenvironment of HSA and LZM and the protein conformation changed in the presence of FAEE. Furthermore, the effects of some common metal ions on the binding constants of FAEE-HSA and FAEE-LZM were investigated. Overall, the experimental results provide a theoretical basis for promoting the application of FAEE in the cosmetics, food, and pharmaceutical industries and significant guidance for food safety, drug design, and development.
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Affiliation(s)
- Wen-Hua Tong
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin 644000, China; Key Laboratory of Brewing Biotechnology and Application, Yibin 644000, China.
| | - Shu-Qin Wang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Guan-Ying Chen
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Dong-Xu Li
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Yan-Sen Wang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Li-Ming Zhao
- School of Biotechnology, East China University of Science and Technology, Shanghai 200000, China
| | - Ying Yang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin 644000, China.
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Bai J, Sun X, Geng B, Ma X. Interaction mechanism of Cu +/Cu 2+ on bovine serum albumin: Vitro simulation experiments by spectroscopic methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122491. [PMID: 36801739 DOI: 10.1016/j.saa.2023.122491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Copper (Cu) is an essential trace element for organisms, while excessive concentration of Cu is toxic. In order to assess the toxicity risk of copper in different valences, FTIR, fluorescence, and UV-vis absorption techniques were conducted to study the interactions between either Cu+ or Cu2+ and bovine serum albumin (BSA) under vitro simulated physiological condition. The spectroscopic analysis demonstrated that the intrinsic fluorescence emitted by BSA could be quenched by Cu+/Cu2+ via static quenching with binding sites 0.88 and 1.12 for Cu+ and Cu2+, respectively. On the other hand, the constants of Cu+ and Cu2+ are 1.14 × 103 L/mol and 2.08 × 104 L/mol respectively. ΔH is negative whereas ΔS is positive, showing that the interaction between BSA and Cu+/Cu2+ was mainly driven by electrostatic force. In accordance with Föster's energy transfer theory, the binding distance r showed that the transition of energy from BSA to Cu+/Cu2+ is highly likely to happen. BSA conformation analyses indicated that the interactions between Cu+/Cu2+ and BSA could alter the secondary structure of proteins. Current study provides more information of the interaction between Cu+/Cu2+ and BSA, and reveals the potential toxicological effect of different speciation of copper at molecular level.
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Affiliation(s)
- Jie Bai
- College of Environmental Science, Liaoning University, Shenyang, 110036, China
| | - Xuekai Sun
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Bing Geng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Xiping Ma
- College of Environmental Science, Liaoning University, Shenyang, 110036, China.
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Hossain MJ, Rashid MA, Sultan MZ. Transition Metal Chelation Augments the Half-life of Secnidazole: Molecular Docking and Fluorescence Spectroscopic Approaches. Drug Res (Stuttg) 2020; 70:583-592. [PMID: 33098081 DOI: 10.1055/a-1252-2322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This current research aimed to establish the most required pharmacodynamics parameters of two transition metal complexes of an antimicrobial drug secnidazole. The spectroscopic fluorescence quenching strategy was outlined to evaluate the binding mechanism and binding affinity of nickel (II) and chromium (III) complexes of secnidazole with bovine serum albumin (BSA). The conformational modifications and the interacting patterns of the protein due to the interaction of the parent compound of the metal complexes have been investigated by molecular docking approach. The ligand-protein interactions were confirmed by the spectral quelling of the serum protein's intensity in the presence of metal chelate of secnidazole. The quenching mechanism was an endothermic dynamic process. The calculated thermodynamic factors delineated van der Waals interactions mainly influenced the spontaneous process. The UV-fluorescence curves were studied to establish the energy transformation profile according to the Förster resonance energy transfer (FRET) theory. The double-logarithm plot exhibited the binding number that ensured the drug-protein interaction was at a 1:1 ratio. The compared binding constants dictated that both metal chelates gained higher binding affinity, longer half-life, and achieved the capacity to show the pharmacological effects by a lower dose than the parent molecule.
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Affiliation(s)
- Md Jamal Hossain
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka-1000, Bangladesh.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka-1000, Bangladesh
| | - Mohammad A Rashid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka-1000, Bangladesh
| | - Md Zakir Sultan
- Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka-1000, Bangladesh
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Effects of chlorogenic acid on the binding process of cadmium with bovine serum albumin: A multi-spectroscopic and docking study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Joondan N, Laulloo SJ, Caumul P, Kharkar PS. Antioxidant, Antidiabetic and Anticancer Activities of L-Phenylalanine and L-Tyrosine Ester Surfactants: In Vitro and In Silico Studies of their Interactions with Macromolecules as Plausible Mode of Action for their Biological Properties. ACTA ACUST UNITED AC 2020. [DOI: 10.2174/1573407214666180829125309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Background:
Aromatic amino acid-based surfactants have been found to have interesting
biological properties such as antibacterial and hemolytic activities. Recently, we have reported the antibacterial
activity of a range of ester hydrochloride surfactants derived from L-Phenylalanine and LTyrosine.
This study aims at assessing the antioxidant, α-glycosidase inhibitory and cytotoxic activities
of a series of L-Phenylalanine and L-Tyrosine ester hydrochlorides. Molecular docking and BSA binding
studies were also carried out in order to investigate their potential therapeutic targets.
Methods:
L-Phenylalanine and L-Tyrosine surfactants were tested as potential lipophilic antioxidants
using the DPPH and ABTS assays. These surfactants were also tested for their α-glycosidase inhibitory
activity using 4-nitrophenyl α -D-glucopyranoside (pNPG) as substrate. Their cytotoxicity effects were
screened using HeLa and KB cell lines. Glide version 5.7 as implemented in Schrödinger suite 2013-1,
was used for performing docking studies of L-Phenylalanine and L-Tyrosine dodecyl esters. The interaction
of the ester hydrochlorides of L-Phenylalanine and L-Tyrosine with bovine serum albumin (BSA)
was investigated using fluorometric titration.
Results:
The presence of the phenolic moiety in L-Tyrosine-based surfactants was found to enhance the
antioxidant and α-glucosidase inhibitory activities compared to the L-Phenylalanine derivatives. The α-
glucosidase and anticancer activities of the phenylalanine surfactants were found to increase with chain
length up to C12 above which the activities exhibited a downward trend. In the case of the tyrosine series,
an increase in chain length from C8 to C14 was found to decrease the α-glucosidase inhibitory
activity and increase the anticancer activity of the surfactants. Binding studies with bovine serum albumin
showed that the tyrosine surfactants displayed greater affinity for the serum albumin, owing to the
presence of the phenolic group which altered the orientation of the surfactant molecule within the hydrophobic
core of BSA.
Conclusion:
L-Tyrosine esters having a phenolic moiety were found to possess enhanced biological
activity in terms of both the antioxidant and antidiabetic activities as well as also bind more strongly to
Bovine serum albumin. Molecular docking studies of the phenylalanine and tyrosine surfactants of similar
chain length with target proteins showed direct correlation with their anticancer and antidiabetic
activity. Therefore, the findings show that these aromatic based surfactants derived from L-Tyrosine can
act as promising antioxidant, antidiabetic and anticancer agents, and they can also be efficiently transported
and eliminated in the body, making them useful candidates for drug designs.
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Affiliation(s)
- Nausheen Joondan
- Department of Chemistry, Faculty of Science, University of Mauritius, Reduit, Mauritius
| | - Sabina J. Laulloo
- Department of Chemistry, Faculty of Science, University of Mauritius, Reduit, Mauritius
| | - Prakashanand Caumul
- Department of Chemistry, Faculty of Science, University of Mauritius, Reduit, Mauritius
| | - Prashant S. Kharkar
- SPP School of Pharmacy and Technology Management, SVKM’s NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai 400 056, India
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Joondan N, Jhaumeer Laulloo S, Caumul P. Amino acids: Building blocks for the synthesis of greener amphiphiles. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2017.1421085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nausheen Joondan
- Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius
| | | | - Prakashanand Caumul
- Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius
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7
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Kasprzak MM, Erxleben A, Ochocki J. Properties and applications of flavonoid metal complexes. RSC Adv 2015. [DOI: 10.1039/c5ra05069c] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Flavonoid metal complexes have a wide spectrum of activities as well as potential and actual applications.
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Affiliation(s)
- Maria M. Kasprzak
- Department of Bioinorganic Chemistry
- Medical University of Lodz
- Lodz
- Poland
| | - Andrea Erxleben
- School of Chemistry
- National University of Ireland
- Galway
- Ireland
| | - Justyn Ochocki
- Department of Bioinorganic Chemistry
- Medical University of Lodz
- Lodz
- Poland
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Guo M, He L, Strong PJ, Wang H. Binding between lead ions and the high-abundance serum proteins. CHEMOSPHERE 2014; 112:472-480. [PMID: 25048942 DOI: 10.1016/j.chemosphere.2014.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 05/01/2014] [Accepted: 05/11/2014] [Indexed: 06/03/2023]
Abstract
The interaction between three of the most abundant bovine serum proteins (serum albumin, transferrin and IgG) with Pb(2+) was investigated using electrochemistry. The data was used to construct a new theoretical model of Pb(2+) binding to the high-abundance serum proteins under non-ideal conditions. The binding constants (β) of Pb(2+) to the individual proteins and a mixture of proteins were measured according to a new theoretical equation (non-ideal state) as well as the McGhee-Von Hippel equation (ideal state). Differences between the models suggested that the β values obtained using the non-ideal state model was more realistic. Protein-protein interactions and micro-environmental influences affected binding between Pb(2+) and the high-abundance serum proteins. We included a micro-environmental influence factor for the model (Fm), which accurately quantified the effect of micro-environment of the proteome of Pb(2+) binding with the serum proteins. This research provides a useful reference of theoretical and experimental work regarding heavy-metal binding interactions with serum proteins.
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Affiliation(s)
- Ming Guo
- School of Science, Zhejiang Agricultural & Forestry University, Lin'an, Zhejiang Province 311300, China.
| | - Ling He
- School of Science, Zhejiang Agricultural & Forestry University, Lin'an, Zhejiang Province 311300, China
| | - P J Strong
- Centre for Solid Waste Bioprocessing, School of Civil Engineering and School of Chemical Engineering, The University of Queensland, Brisbane St Lucia, QLD 4072, Australia
| | - Hailong Wang
- School of Environmental and Resource Sciences, Zhejiang Agricultural & Forestry University, Lin'an, Zhejiang Province 311300, China.
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Satheshkumar A, Elango KP. Spectroscopic and molecular docking studies on the charge transfer complex of bovine serum albumin with quinone in aqueous medium and its influence on the ligand binding property of the protein. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:337-343. [PMID: 24802718 DOI: 10.1016/j.saa.2014.03.108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 03/25/2014] [Accepted: 03/29/2014] [Indexed: 06/03/2023]
Abstract
The spectral techniques such as UV-Vis, (1)H NMR and fluorescence and electrochemical experiments have been employed to investigate the interaction between 2-methoxy-3,5,6-trichloro-1,4-benzoquinone (MQ; a water soluble quinone) and bovine serum albumin (BSA) in aqueous medium. The fluorescence of BSA was quenched by MQ via formation of a 1:1 BSA-MQ charge transfer adduct with a formation constant of 3.3×10(8) L mol(-1). Based on the Forster's theory the binding distance between them is calculated as 2.65 nm indicating high probability of binding. For the first time, influence of quinone on the binding property of various types of ligands such as aspirin, ascorbic acid, nicotinimide and sodium stearate has also been investigated. The results indicated that the strong and spontaneous binding existing between BSA and MQ, decreased the intensity of binding of these ligands with BSA. Since Tryptophan (Trp) is the basic residue present in BSA, a comparison between binding property of Trp-MQ adduct with that of BSA-MQ with these ligands has also been attempted. 1H NMR titration study indicated that the Trp forms a charge transfer complex with MQ, which reduces the interaction of Trp with the ligands. Molecular docking study supported the fact that the quinone interacts with the Trp212 unit of the BSA and the free energy change of binding (ΔG) for the BSA-MQ complex was found to be -46 kJ mol(-1), which is comparable to our experimental free energy of binding (-49 kJ mol(-1)) obtained from fluorescence study.
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Affiliation(s)
- Angupillai Satheshkumar
- Department of Chemistry, Gandhigram Rural Institute (Deemed University), Gandhigram 624302, India
| | - Kuppanagounder P Elango
- Department of Chemistry, Gandhigram Rural Institute (Deemed University), Gandhigram 624302, India.
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Wang YQ, Zhang HM, Cao J. Exploring the interactions of decabrominateddiphenyl ether and tetrabromobisphenol A with human serum albumin. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:595-606. [PMID: 25194328 DOI: 10.1016/j.etap.2014.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 08/11/2014] [Accepted: 08/13/2014] [Indexed: 06/03/2023]
Abstract
Decabrominateddiphenyl ether (deca-BDE) and tetrabromobisphenol A (TBBPA) are known as brominated flame-retardants, which are commonly found in the environment. The binding mechanisms of deca-BDE and TBBPA with human serum albumin (HSA) are still unknown. In this report, the interactions of deca-BDE and TBBPA with HSA were investigated using different spectroscopic methods and molecular modeling. The experimental results indicated the formation of complexes between deca-BDE/TBBPA and HSA with different affinity. These interactions affected the secondary structure of HSA. Thermodynamic investigations revealed that hydrophobic forces mainly drove the binding interactions of deca-BDE/TBBPA with HSA. For TBBPA, hydrogen-bonding interactions were also involved in the binding process of TBBPA with HSA. According to the analysis of experimental and theoretical data, we concluded that the binding site of deca-BDE to HSA located in the subdomain IB, while TBBPA was near to subdomain IIA and Trp-214. The binding interactions of deca-BDE and TBBPA with the most prominent carrier protein in the human circulatory system could influence mechanisms of their biochemical processes. Thus, these binding interactions can play central roles in studying the distribution and toxicity mechanisms of brominated flame-retardants.
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Affiliation(s)
- Yan-Qing Wang
- Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng City, Jiangsu Province 224002, People's Republic of China; Institute of Applied Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China.
| | - Hong-Mei Zhang
- Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng City, Jiangsu Province 224002, People's Republic of China; Institute of Applied Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
| | - Jian Cao
- Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng City, Jiangsu Province 224002, People's Republic of China; Institute of Applied Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
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Ściskalska M, Zalewska M, Grzelak A, Milnerowicz H. The influence of the occupational exposure to heavy metals and tobacco smoke on the selected oxidative stress markers in smelters. Biol Trace Elem Res 2014; 159:59-68. [PMID: 24789476 PMCID: PMC4051999 DOI: 10.1007/s12011-014-9984-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 04/14/2014] [Indexed: 12/01/2022]
Abstract
The aim of the study was to verify if there is any association between exposure to Cu, Zn, Cd, Pb, As and the formation of malondialdehyde (MDA), 8-hydroxydeoxyguanosine (8-OHdG), advanced oxidation protein products (AOPP), and whether in this process cigarette smoking plays a role. The investigations were performed in the 352 smelters occupationally exposed to heavy metals and 73 persons of control group. Metals concentration was determined by atomic absorption spectrometry. MDA and AOPP concentrations were determined by spectrophotometric methods. The concentration of 8-OHdG was determined by ELISA method. It was demonstrated an increased Cu concentration in smoking smelters compared to non-smoking control group. It was noted no differences in Zn and Mg concentrations between the examined groups. Pb concentration was more than sixfold higher in the group of smoking smelters and about fivefold higher in the group of non-smoking smelters compared to the control groups (smokers and non-smokers). It was shown that Cd concentration in the blood was nearly fivefold higher in the smoking control group compared to the non-smoking control group and more than threefold higher in the group of smoking smelters compared to non-smoking. It was shown an increased As concentration (more than fourfold) and decreased Ca concentration in both groups of smelters compared to control groups. In groups of smelters (smokers and non-smokers), twofold higher MDA and AOPP concentrations, and AOPP/albumin index compared to control groups (smokers and non-smokers) were shown. Tobacco smoke is the major source of Cd in the blood of smelters. Occupational exposure causes accumulation of Pb in the blood. Occupational exposure to heavy metals causes raise of MDA concentration and causes greater increase in AOPP concentration than tobacco smoke.
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Affiliation(s)
- Milena Ściskalska
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
| | - Marta Zalewska
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
| | - Agnieszka Grzelak
- Students Scientific Society at the Department of Biomedical Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
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