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Strugała-Danak P, Spiegel M, Gabrielska J. Malvidin and Its Mono- and Di-Glucosides Forms: A Study of Combining Both In Vitro and Molecular Docking Studies Focused on Cholinesterase, Butyrylcholinesterase, COX-1 and COX-2 Activities. Molecules 2023; 28:7872. [PMID: 38067599 PMCID: PMC10708353 DOI: 10.3390/molecules28237872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Malvidin, one of the six most prominent anthocyanins found in various fruits and vegetables, may possess a wide range of health-promoting properties. The biological activity of malvidin and its glycosides is not entirely clear and has been relatively less frequently studied compared to other anthocyanins. Therefore, this study aimed to determine the relationship between the structural derivatives of malvidin and their anti-cholinergic and anti-inflammatory activity. The study selected malvidin (Mv) and its two sugar derivatives: malvidin 3-O-glucoside (Mv 3-glc) and malvidin 3,5-O-diglucoside (Mv 3,5-diglc). The anti-inflammatory activity was assessed by inhibiting the enzymes, specifically COX-1 and COX-2. Additionally, the inhibitory effects on cholinesterase activity, particularly acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), were evaluated. Molecular modeling was also employed to examine and visualize the interactions between enzymes and anthocyanins. The results revealed that the highest inhibitory capacity at concentration 100 µM was demonstrated by Mv 3-glc in relation to AChE (26.3 ± 3.1%) and BChE (22.1 ± 3.0%), highlighting the crucial role of the glycoside substituent at the C3 position of the C ring in determining the inhibitory efficiency of these enzymes. In addition, the glycosylation of malvidin significantly reduced the anti-inflammatory activity of these derivatives compared to the aglycone form. The IC50 parameter demonstrates the following relationship for the COX-1 enzyme: Mv (12.45 ± 0.70 µM) < Mv 3-glc (74.78 ± 0.06 µM) < Mv 3,5-diglc (90.36 ± 1.92 µM). Similarly, for the COX-2 enzyme, we have: Mv (2.76 ± 0.16 µM) < Mv 3-glc (39.92 ± 3.02 µM) < Mv 3.5-diglc (66.45 ± 1.93 µM). All tested forms of malvidin exhibited higher activity towards COX-2 compared to COX-1, indicating their selectivity as inhibitors of COX-2. Theoretical calculations were capable of qualitatively replicating most of the noted patterns in the experimental data, explaining the impact of deprotonation and glycosylation on inhibitory activity. It can be suggested that anthocyanins, such as malvidins, could be valuable in the development of treatments for inflammatory conditions and Alzheimer's disease and deserve further study.
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Affiliation(s)
- Paulina Strugała-Danak
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland;
| | - Maciej Spiegel
- Department of Organic Chemistry and Pharmaceutical Technology, Wrocław Medical University, Borowska 211A, 50-556 Wrocław, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland;
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Strugała-Danak P, Spiegel M, Hurynowicz K, Gabrielska J. Corrigendum to “Interference of malvidin and its mono- and di-glucosides on the membrane – Combined in vitro and computational chemistry study” [J. Funct. Foods 99 (2022) 105340]. J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Dzydzan O, Brodyak I, Strugała-Danak P, Strach A, Kucharska AZ, Gabrielska J, Sybirna N. Biological Activity of Extracts of Red and Yellow Fruits of Cornus mas L.-An In Vitro Evaluation of Antioxidant Activity, Inhibitory Activity against α-Glucosidase, Acetylcholinesterase, and Binding Capacity to Human Serum Albumin. Molecules 2022; 27:molecules27072244. [PMID: 35408646 PMCID: PMC9000679 DOI: 10.3390/molecules27072244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/26/2022] [Accepted: 03/27/2022] [Indexed: 12/24/2022] Open
Abstract
Although extracts are broadly used in order to support the treatment of numerous diseases, only in a limited number of cases is the process of applying and establishing their mechanisms of action scientifically analyzed. Fruits of Cornelian cherry are an abundant source of iridoids, anthocyanins, flavonols and phenolic acids. The aim of the present study was to evaluate the in vitro bioactivity of red and yellow Cornelian cherry fruits’ extracts. The biological potential of extracts, in a broad sense, involved antioxidant activity in relation to phosphatidylcholine liposomes, inhibitory ability against α-glucosidase and acetylcholinesterase enzymes, as well as interactions with human serum albumin. Studies showed that both extracts were more effective in protecting liposome membranes against free radicals produced by AAPH in an aqueous environment due to the fact that they can be better eliminated by the hydrophilic components of the extracts than those produced by UVB radiation. Extracts exhibited inhibitory activity against acetylcholinesterase and α-glucosidase, wherein loganic acid extract showed noncompetitive inhibition of the enzyme. Moreover, extracts binded to albumin mainly through hydrogen bonds and van der Waals forces. Taken together, red and yellow cherry fruits’ extracts exhibit diverse biological properties and can be exploited as a source of natural therapeutic agents.
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Affiliation(s)
- Olha Dzydzan
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., 79005 Lviv, Ukraine; (O.D.); (I.B.); (N.S.)
| | - Iryna Brodyak
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., 79005 Lviv, Ukraine; (O.D.); (I.B.); (N.S.)
| | - Paulina Strugała-Danak
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland; (A.S.); (J.G.)
- Correspondence: ; Tel.: +48-71-320-5461
| | - Angelika Strach
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland; (A.S.); (J.G.)
| | - Alicja Z. Kucharska
- Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, J. Chełmońskiego 37/41, 51-630 Wrocław, Poland;
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland; (A.S.); (J.G.)
| | - Natalia Sybirna
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., 79005 Lviv, Ukraine; (O.D.); (I.B.); (N.S.)
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Strugała P, Urbaniak A, Kuryś P, Włoch A, Kral T, Ugorski M, Hof M, Gabrielska J. Antitumor and antioxidant activities of purple potato ethanolic extract and its interaction with liposomes, albumin and plasmid DNA. Food Funct 2021; 12:1271-1290. [PMID: 33434253 DOI: 10.1039/d0fo01667e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The aim of the study was to broadly determine the biological activities of purple potato ethanolic extract of the Blue Congo variety (BCE). The antioxidant activity of BCE was determined in relation to liposome membranes, and peroxidation was induced by UVB and AAPH. To clarify the antioxidant activity of BCE, we investigated its interactions with hydrophilic and hydrophobic regions of a membrane using fluorimetric and FTIR methods. Next, we investigated the cytotoxicity and pro-apoptotic activities of BCE in two human colon cancer cell lines (HT-29 and Caco-2) and in normal cells (IPEC-J2). In addition, the ability to inhibit enzymes that are involved in pro-inflammatory reactions was examined. Furthermore, BCE interactions with serum albumin and plasmid DNA were investigated using steady state fluorescence spectroscopy and a single molecule fluorescence technique (TCSPC-FCS). We proved that BCE effectively protects lipid membranes against the process of peroxidation and successfully inhibits the cyclooxygenase and lipoxygenase enzymes. Furthermore, it interacts with the hydrophilic and hydrophobic parts of lipid membranes as well as with albumin and plasmid DNA. It was observed that BCE is more cytotoxic against colon cancer cell lines than normal IPEC-J2 cells; it also induces apoptosis in cancer cell lines, but does not induce cell death in normal cells.
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Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland.
| | - Anna Urbaniak
- Laboratory of Glycobiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland and Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 31, 50-375, Wrocław, Poland
| | - Patryk Kuryś
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland.
| | - Aleksandra Włoch
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland.
| | - Teresa Kral
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland. and Department of Biophysical Chemistry, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejskova 3, 18223 Prague 8, Czech Republic
| | - Maciej Ugorski
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 31, 50-375, Wrocław, Poland
| | - Martin Hof
- Department of Biophysical Chemistry, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejskova 3, 18223 Prague 8, Czech Republic
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland.
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Hendrich AB, Strugała P, Dudra A, Kucharska AZ, Sokół-Łętowska A, Wojnicz D, Cisowska A, Sroka Z, Gabrielska J. Microbiological, antioxidant and lipoxygenase-1 inhibitory activities of fruit extracts of chosen Rosaceae family species. ADV CLIN EXP MED 2020; 29:215-224. [PMID: 32073762 DOI: 10.17219/acem/115086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Extracts from the Rosaceae family fruits are rich in natural, biologically active polyphenols, but their antibacterial properties are still poorly understood. Therefore, we focused our research on their activity against uropathogenic Escherichia coli strains. This research also concerned the proof of their ability to reduce oxidative stress and modulate the activity of lipoxygenase-1 (LOX-1). It is well-known that plants represent a source of bioactive compounds whose antioxidant activity may be useful in protecting against oxidative damage in cells, which have been linked to the pathogenesis of many oxidative diseases. OBJECTIVES The study determined the biological activity of methanol (ME) and water (WE) extracts rich in polyphenols from the hawthorn (Crataegus monogyna Jacq.), dog rose (Rosa canina L.), quince (Cydonia oblonga Mill.), and Japanese quince (Chaenomeles speciosa (Sweet) Nakai). MATERIAL AND METHODS The antioxidant capacity was evaluated using 1,1diphenyl-2-picrylhydrazyl (DPPH▪) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS+▪) radical scavenging methods. The inhibition of liposome membrane oxidation was studied using the thiobarbituric acid reactive substances assay. Lipoxygenase-1 inhibitory activity was measured using the spectrophotometric method. Bacterial growth was determined by evaluating the number of colony forming units per milliliter (CFU/mL). Hydrophobicity was established with salt aggregation hydrophobicity test (SAT). Swimming and swarming motilities were evaluated using soft-agar plates. Production of curli fimbriae was estimated on CFA agar. The P fimbriae were detected using the hemagglutination of erythrocytes. Adhesion of bacteria to human uroepithelial cells was assessed. The amount of biofilm was determined spectrophotometrically. RESULTS We showed that most of these extracts are effective antioxidants and free radical scavengers, possess reasonable potential anti-inflammatory activity, reduce the adhesion of E. coli to uroepithelial cells, and reduce the ability of these bacteria to form biofilm. CONCLUSIONS The extracts examined, showing very promising biological properties, seem to be able to join the list of substances that can be used as dietary supplements aimed at preventing, for example, urinary tract infections, or as support of drug treatment in many diseases.
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Affiliation(s)
- Andrzej B Hendrich
- Department of Biology and Medical Parasitology, Wroclaw Medical University, Poland
| | - Paulina Strugała
- Department of Physics and Biophysics, Wroclaw University of Environmental and Life Sciences, Poland
| | - Anna Dudra
- Department of Physics and Biophysics, Wroclaw University of Environmental and Life Sciences, Poland
| | - Alicja Z Kucharska
- Department of Fruit, Vegetable and Cereal Technology, Wroclaw University of Environmental and Life Sciences, Poland
| | - Anna Sokół-Łętowska
- Department of Fruit, Vegetable and Cereal Technology, Wroclaw University of Environmental and Life Sciences, Poland
| | - Dorota Wojnicz
- Department of Biology and Medical Parasitology, Wroclaw Medical University, Poland
| | - Agnieszka Cisowska
- Department of Biology and Medical Parasitology, Wroclaw Medical University, Poland
| | - Zbigniew Sroka
- Department of Pharmacognosy and Herbal Medicines, Wroclaw Medical University, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wroclaw University of Environmental and Life Sciences, Poland
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Strugała P, Dzydzan O, Brodyak I, Kucharska AZ, Kuropka P, Liuta M, Kaleta-Kuratewicz K, Przewodowska A, Michałowska D, Gabrielska J, Sybirna N. Antidiabetic and Antioxidative Potential of the Blue Congo Variety of Purple Potato Extract in Streptozotocin-Induced Diabetic Rats. Molecules 2019; 24:E3126. [PMID: 31466303 PMCID: PMC6749302 DOI: 10.3390/molecules24173126] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/25/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023] Open
Abstract
This study was designed to evaluate the effects of purple potato extract of the Blue Congo variety (PP) on diabetes and its antioxidant activities after two-week administration tostreptozotocin (STZ)-induced diabetic rats. The activities of PP were evaluated at a dose of 165 mg/kg body weight (b.w.) by estimating biochemical changes in blood plasma and through a histopathological study of kidney, muscles, and liver tissue. We evaluated the effect of treatment with extract on glucose level, glycated hemoglobin, activities of enzymatic antioxidants (including superoxide dismutase, glutathione peroxidase, and catalase), and lipid peroxidation. Moreover, we determined advanced glycation end-products (AGEs), advanced oxidation protein products (AOPPs), and the level of oxidative modified proteins (OMPs) as markers of carbonyl-oxidative stress in rats with diabetes. Using high-performance liquid chromatography, we identified five anthocyanins and six phenolic acids in the extract from Blue Congo with the dominant acylated anthocyanin as petunidin-3-p-coumaroyl-rutinoside-5-glucoside. The administration of Blue Congo extract lowered blood glucose, improved glucose tolerance, and decreased the amount of glycated hemoglobin. Furthermore, PP demonstrated an antioxidative effect, suppressed malondialdehyde levels, and restored antioxidant enzyme activities in diabetic rats. After administration of PP, we also noticed inhibition of OMP, AGE, and AOPP formation in the rats' blood plasma.
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Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland.
| | - Olha Dzydzan
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., Lviv 79005, Ukraine
| | - Iryna Brodyak
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., Lviv 79005, Ukraine
| | - Alicja Z Kucharska
- Faculty of Biotechnology and Food Science, Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, J. Chełmońskiego 37/41, 51-630 Wrocław, Poland
| | - Piotr Kuropka
- Faculty of Veterinary Medicine, Department of Biostructure and Animal Physiology, Wrocław University of Environmental and Life Sciences, C.K. Norwida 31, 50-375 Wrocław, Poland
| | - Mariana Liuta
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., Lviv 79005, Ukraine
| | - Katarzyna Kaleta-Kuratewicz
- Faculty of Veterinary Medicine, Department of Biostructure and Animal Physiology, Wrocław University of Environmental and Life Sciences, C.K. Norwida 31, 50-375 Wrocław, Poland
| | - Agnieszka Przewodowska
- Plant Breeding and Acclimatization Institute-National Research Institute, Bonin Research Center, Bonin 3, 76-009 Bonin, Poland
| | - Dorota Michałowska
- Plant Breeding and Acclimatization Institute-National Research Institute, Bonin Research Center, Bonin 3, 76-009 Bonin, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland
| | - Natalia Sybirna
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., Lviv 79005, Ukraine
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Strugała P, Loi S, Bażanów B, Kuropka P, Kucharska AZ, Włoch A, Gabrielska J. A Comprehensive Study on the Biological Activity of Elderberry Extract and Cyanidin 3- O-Glucoside and Their Interactions with Membranes and Human Serum Albumin. Molecules 2018; 23:molecules23102566. [PMID: 30297646 PMCID: PMC6222845 DOI: 10.3390/molecules23102566] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 09/30/2018] [Accepted: 10/05/2018] [Indexed: 12/13/2022] Open
Abstract
In our research we used the extract from dietary supplement of elderberry (EE) and its dominant anthocyanin—cyanidin 3-O-glucoside (Cy 3-gluc). By interacting with a model membrane that reflects the main lipid composition of tumor membranes, the extract components, including Cy 3-gluc, caused an increase in packing order, mainly in the hydrophilic region of the membrane. It can thus be stated that EE caused a rigidifying effect, which is fundamental for understanding its anticancer and antioxidant activity. This study represents the first attempt to unravel the mechanism of interaction of elderberry extract with membranes. The results of the interaction with human serum albumin (HSA) proved that the studied substance quenches the fluorescence of HSA through a static mechanism in which the main interaction forces are Van der Waals and hydrogen bonding. The antioxidant activity of EE and Cy 3-gluc on liposomal membranes, antiradical properties and ability to inhibited the activity of the enzymes cyclooxygenase-1 and cyclooxygenase-2 were also demonstrated. Moreover, the anticancer activity of EE and Cy 3-gluc on human breast adenocarcinoma cell line were investigated. In addition, EE also exhibited the ability to form lipid aggregates in the form of liposomal capsules that can be applied as carriers of active biological substances, and the highest efficacy of EE encapsulation was obtained for multilayered liposome formulations.
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Affiliation(s)
- Paulina Strugała
- Faculty of Life Sciences and Technology, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland.
| | - Sabrina Loi
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria S.S. 554, Km 4.5, Monserrato, 09042 Cagliari, Italy.
| | - Barbara Bażanów
- Faculty of Veterinary Medicine, Department of Pathology, Wrocław University of Environmental and Life Sciences, C.K. Norwida 31, 51-375 Wrocław, Poland.
| | - Piotr Kuropka
- Faculty of Veterinary Medicine, Department of Biostructure and Animal Physiology, Wrocław University of Environmental and Life Sciences, C.K. Norwida 31, 50-375 Wrocław, Poland.
| | - Alicja Z Kucharska
- Faculty of Biotechnology and Food Science, Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, J. Chełmońskiego 37/41, 51-630 Wrocław, Poland.
| | - Aleksandra Włoch
- Faculty of Life Sciences and Technology, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland.
| | - Janina Gabrielska
- Faculty of Life Sciences and Technology, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland.
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Strugala P, Dudra A, Gabrielska J. ACTIVITY OF BLACKCURRANT AND CHOKEBERRY EXTRACTS AND TWO MAJOR CYANIDIN GLYCOSIDES AGAINST LIPID MEMBRANE OXIDATION AND THEIR BINDING PROPERTIES TO ALBUMIN. Acta Pol Pharm 2017; 74:679-687. [PMID: 29624274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The purpose of this study was to explain how extracts from chokeberry and blackcurrant interact with the lipid phase of biological membrane and with human albumin - the main protein of blood. Aiming at better understanding of the observed biological activity of the extracts, we also conducted experiments with their main components: cyanidin-3-0-galactoside and cyanidin-3-0-ruthinoside. Antioxidant activities of extracts and cyanidin derivatives were investigated with phosphatidy1choline liposomes and AAPH as oxidation inducing factor. Fluorescent probes (merocyanin and N-phenyl-1-naphthylamine) that were located at different depths within the membrane lipid bilayer were also used. The interaction between the compounds and human serum albumin was investigated using natural fluorescence quenching. According to our study it is highly likely that the significant antioxidant activity of chokeberry and blackcurrant extracts (IC₅₀chokeberry = 4.92 pg/mL; IC₅₀blackbcurrant = 7.04 μg/mL) is probably due to cyjanidin's main derivatives, which protect the lipid membrane more than the extracts. In addition, it has been suggested that the compounds are anchored mainly on the membrane surface and rigidify/order the lipids in the membrane. That rigidifying effect is the key factor for understanding their antioxidant properties. Experimental results have proved that all the study compounds quench the fluorescence of HSA through a static mechanism and the main interaction forces are the Van der Waals and hydrogen bonding interactions. The results of the study have improved our knowledge on how to protect membranes against lipid peroxidation using extracts rich in anthocyanins. The results can be relevant to pharmacists and nutritionists.
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Strugała P, Dudra A, Gabrielska J. Interaction between Mimic Lipid Membranes and Acylated and Nonacylated Cyanidin and Its Bioactivity. J Agric Food Chem 2016; 64:7414-7422. [PMID: 27624410 DOI: 10.1021/acs.jafc.6b03066] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We investigated the effects of acylated cyanidin-3-O-β-(6″-O-E-p-coumaroyl-sambubioside)-5-O-β-glucoside (C3-cs-5G) and nonacylated cyanidin, cyanidin-3,5-di-O-β-glucoside (C3,5G) and cyanidin-3-O-β-glucoside (C3G), on cell-mimic membranes (MM) that reflected the membrane lipid composition of tumor cells. The relationship between structural derivatives of cyanidin (Cy-d), membrane interactivity, their antioxidant activity, and interaction with albumin were characterized. Studies showed that Cy-d caused an increase in packing order mainly in the hydrophilic region of the membranes. Cy-d have shown high antioxidant activity against liposome oxidation induced by AAPH and ability to bind to albumin through a static quenching mechanism. The results showed that glycosylation number and the presence of aromatic acid attached to sugars affected the membrane properties, according to the sequence C3-cs-5G > C3,5G > C3G. It can be stated that Cy-d in the process of interaction with MM caused a rigidifying effect, which is fundamental for understanding their anticancer and antioxidant activity and is one of the possible pharmaceutical mechanisms.
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Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences , C.K. Norwida 25, 50-375 Wrocław, Poland
| | - Anna Dudra
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences , C.K. Norwida 25, 50-375 Wrocław, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences , C.K. Norwida 25, 50-375 Wrocław, Poland
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Strugała P, Cyboran-Mikołajczyk S, Dudra A, Mizgier P, Kucharska AZ, Olejniczak T, Gabrielska J. Biological Activity of Japanese Quince Extract and Its Interactions with Lipids, Erythrocyte Membrane, and Human Albumin. J Membr Biol 2016; 249:393-410. [PMID: 26861057 PMCID: PMC4875069 DOI: 10.1007/s00232-016-9877-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/27/2016] [Indexed: 11/29/2022]
Abstract
The aim of the study was to determine in vitro biological activity of fruit ethanol extract from Chaenomeles speciosa (Sweet) Nakai (Japanese quince, JQ) and its important constituents (−)-epicatechin (EC) and chlorogenic acid (CA). The study also investigated the structural changes in phosphatidylcholine (PC) liposomes, dipalmitoylphosphatidylcholine liposomes, and erythrocyte membranes (RBC) induced by the extract. It was found that the extract effectively inhibits oxidation of RBC, induced by 2,2′-azobis (2-amidinopropane) dihydrochloride (AAPH), and PC liposomes, induced by UVB radiation and AAPH. Furthermore, JQ extract to a significant degree inhibited the activity of the enzymes COX-1 and COX-2, involved in inflammatory reactions. The extract has more than 2 times greater activity in relation to COX-2 than COX-1 (selectivity ratio 0.48). JQ extract stimulated growth of the beneficial intestinal bacteria Lactobacillus casei and Lactobacillus plantarum. In the fluorimetric method by means of the probes Laurdan, DPH and TMA-DPH, and 1H-NMR, we examined the structural changes induced by JQ and its EC and CA components. The results show that JQ and its components induce a considerable increase of the packing order of the polar heads of lipids with a slight decrease in mobility of the acyl chains. Lipid membrane rigidification could hinder the diffusion of free radicals, resulting in inhibition of oxidative damage induced by physicochemical agents. JQ extract has the ability to quench the intrinsic fluorescence of human serum albumin through static quenching. This report thus could be of huge significance in the food industry, pharmacology, and clinical medicine.
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Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland.
| | - Sylwia Cyboran-Mikołajczyk
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
| | - Anna Dudra
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
| | - Paulina Mizgier
- Department of Fruit, Vegetable and Cereal Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630, Wrocław, Poland
| | - Alicja Z Kucharska
- Department of Fruit, Vegetable and Cereal Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630, Wrocław, Poland
| | - Teresa Olejniczak
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
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Dudra A, Strugała P, Pyrkosz-Biardzka K, Sroka Z, Gabrielska J. A Study on Biological Activity of the Polyphenol Fraction from Fruits of Rosa Rugosa
Thunb. J Food Biochem 2015. [DOI: 10.1111/jfbc.12228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Anna Dudra
- Department of Physics and Biophysics; University of Environmental and Life Sciences; Wrocław Poland
| | - Paulina Strugała
- Department of Physics and Biophysics; University of Environmental and Life Sciences; Wrocław Poland
| | | | - Zbigniew Sroka
- Medical University, Department of Pharmacognosy; Wrocław Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics; University of Environmental and Life Sciences; Wrocław Poland
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13
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Strugała P, Gładkowski W, Kucharska AZ, Sokół-Łętowska A, Gabrielska J. Antioxidant activity and anti-inflammatory effect of fruit extracts from blackcurrant, chokeberry, hawthorn, and rosehip, and their mixture with linseed oil on a model lipid membrane. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201500001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Witold Gładkowski
- Department of Chemistry; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Alicja Z. Kucharska
- Department of Fruit, Vegetable, and Cereal Technology; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Anna Sokół-Łętowska
- Department of Fruit, Vegetable, and Cereal Technology; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics; Wrocław University of Environmental and Life Sciences; Wrocław Poland
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Strugala P, Dudra A, Kucharska AZ, Sokół-Łętowska A, Wojnicz D, Cisowska A, Walkowski S, Sroka Z, Gabrielska J, Hendrich AB. Biological Activity of the Methanol and Water Extracts of the Fruits of Anthocyanin-Rich Plants Grown in South-West Poland. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study we focused on the chemical composition, antioxidant, anti-inflammatory and antibacterial properties of methanol and water extracts of fruits of six species grown in south-west Poland: blackberry, blackcurrant, chokeberry, cherry, gooseberry and raspberry. No general correlation could be drawn between extract chemical properties (i.e. antioxidant and free radical scavenging) and observed biological effects. However, blackcurrant and blackberry extracts (both methanol and water) appeared to be good antioxidants and free radical scavengers, as well as effective inhibitors of E. coli adhesion to the uroepithelial cells. On the other hand, the poorest antioxidants and free radical scavengers, cherry and gooseberry extracts, also poorly affected bacterial growth, swimming ability and adhesion to epithelial cells. Surprisingly, gooseberry extracts, which showed generally weak effects, appeared to be the most effective inhibitor of bacterial biofilm formation. Additionally, most of the studied extracts showed reasonably strong anti-inflammatory properties.
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Affiliation(s)
- Paulina Strugala
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul Norwida 25, 50-375 Wroclaw
| | - Anna Dudra
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul Norwida 25, 50-375 Wroclaw
| | - Alicja Z. Kucharska
- Department of Fruit and Vegetables and Cereals Technology, Wrocław University of Environmental and Life Sciences, ul. Chelmonskiego 37/41, 51-630 Wrocław
| | - Anna Sokół-Łętowska
- Department of Fruit and Vegetables and Cereals Technology, Wrocław University of Environmental and Life Sciences, ul. Chelmonskiego 37/41, 51-630 Wrocław
| | - Dorota Wojnicz
- Department of Medical Biology and Parasitology, Wrocław Medical University, ul. J. Mikulicza-Radeckiego 9, 50-345 Wrocław
| | - Agnieszka Cisowska
- Department of Medical Biology and Parasitology, Wrocław Medical University, ul. J. Mikulicza-Radeckiego 9, 50-345 Wrocław
| | - Stefan Walkowski
- Department of Medical Biology and Parasitology, Wrocław Medical University, ul. J. Mikulicza-Radeckiego 9, 50-345 Wrocław
| | - Zbigniew Sroka
- Department of Pharmacognosy, ul Borowska 211, 50-556 Wrocław, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul Norwida 25, 50-375 Wroclaw
| | - Andrzej B. Hendrich
- Department of Medical Biology and Parasitology, Wrocław Medical University, ul. J. Mikulicza-Radeckiego 9, 50-345 Wrocław
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Strugala P, Dudra A, Kucharska AZ, Sokól-Lętowska A, Wojnicz D, Cisowska A, Walkowski S, Sroka Z, Gabrielska J, Hendrich AB. Biological activity of the methanol and water extracts of the fruits of anthocyanin-rich plants grown in south-west Poland. Nat Prod Commun 2015; 10:467-474. [PMID: 25924531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
In this study we focused on the chemical composition, antioxidant, anti-inflammatory and antibacterial properties of methanol and water extracts of fruits of six species grown in south-west Poland: blackberry, blackcurrant, chokeberry, cherry, gooseberry and raspberry. No general correlation could be drawn between extract chemical properties (i.e. antioxidant and free radical scavenging) and observed biological effects. However, blackcurrant and blackberry extracts (both methanol and water) appeared to be good antioxidants and free radical scavengers, as well as effective inhibitors of E. coli adhesion to the uroepithelial cells. On the other hand, the poorest antioxidants and free radical scavengers, cherry and gooseberry extracts, also poorly affected bacterial growth, swimming ability and adhesion to epithelial cells. Surprisingly, gooseberry extracts, which showed generally weak effects, appearedto be the most effective inhibitor of bacterial biofilm formation. Additionally, most of the studied extracts showed reasonably strong anti-inflammatory properties.
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Abstract
INTRODUCTION In times of worsening civilization diseases the interest in natural healing substances is on the increase. To reduce unwanted side effects of many synthetic drugs, it is reasonable to introduce to the daily diet foods rich in natural compounds of plant origin that are beneficial for health. The purpose of the study was to determine the biological activity and stability of selected ethanol extracts of the fruit of chokeberry, blackcurrant, hawthorn, rosehip, quince and Japanese quince as potential nutraceuticals. MATERIALS AND METHODS Antioxidant activity of the extracts was determined in relation to model phospholipid membranes (IC50(PC)). Antiradical activity was determined in a test with the DPPH• radical (IC50(DPPH)). Also the inhibition of enzymatic (1-LOX) oxidation of linoleic acid was determined at the beginning of the period of storage of the extracts at room temperature and after 12 months. RESULTS After 12 months of storage the highest antioxidant stability was shown by blackcurrant extract (1.5% increase in IC50(PC)), the highest antiradical stability by quince extract (1.0% reduction in IC50(DPPH)), and the highest stability of 1-LOX enzyme inhibition by chokeberry extract (6.3% reduction in inhibition at a concentration of 8 μg∙(-1)). Japanese quince extract showed the strongest regenerating properties with respect to oxidized phospholipid membranes and the highest ability to eliminate the free radical DPPH•. CONCLUSION It can be concluded that the ethanol extracts of the fruits (in particular blackcurrant, chokeberry and Japanese quince) are a potential source of dietary supplements of expected effectiveness in preventive treatment.
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Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Science
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Science
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17
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Abstract
Abstract
Trihydroxyflavones of Scutellaria baicalensis, Antioxidant Activity, Liposome, Peroxidation, MDA The antioxidant effect of a trihydroxyflavone extract from Scutellaria baicalensis on oxida tion induced by ultraviolet light, was studied with phosphatidylcholine liposome membrane. Also, as standards, the antioxidative activity of baicalin, wogonin, baicalein and butylated hydroxytoluene (BHT) was investigated. Comparison of the protective effects of thecompounds studied against photoinduced lipid peroxidation in lecithin liposome membranes showed that: (1) the inhibitory effect of those compounds (at 1.2 mol% antioxidant content in liposomes) on TBA reactive materials from lipid peroxidation decreased in the order of baicalin > BHT ≅ Scutellaria baicalensis. These were found much greater than wogonin and baicalein; (2) the depressed effect of those compounds (at 1.1 mol% compounds content in liposomes) on the production of conjugated dienes (proportional to oxidation index) could be classified as follows: Scutellaria baicalensis ≅ baicalin > BHT, these three were found more active much greather than baicalein and wogonin. Results obtained by ESR measurement confirm that Scutellaria baicalensis extract and the BHT compound significantly de pressed the effect of liposome oxidation. It was found that the new trihydroxyflavones of Scutellaria baicalensis, ensured a very satisfactory concentration-dependent protection of the liposome membrane against UV-induced oxidation. These findings suggest that some of the beneficial effects of the extract of the Scutellaria baicalensis can be mediated in certain diseases (for example in skin diseases) by their ability to scavenge free radicals and by their protective effect on lipid peroxidation caused by sunlight irradiation.
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Affiliation(s)
- Janina Gabrielska
- Department of Physics and Biophysics, Agricultural University, Norwida 25, 50-375 Wroclaw , Poland
| | - Jan Oszmiańsk
- Department of Fruit and Vegetable Technology, Agricultural University, Norwida 25, 50-375 Wroclaw, Poland
| | - Romuald Żyłka
- Department of Physics and Biophysics, Institute of Physics, Technical University of Wroclaw, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Małgorzata Komorowska
- Institute of Physics, Technical University of Wroclaw, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
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Gabrielska J, Sekowski S, Zukowska I, Przestalski S, Zamaraeva M. The modified action of triphenyllead chloride on UVB-induced effects in albumin and lipids. Ecotoxicol Environ Saf 2013; 89:36-42. [PMID: 23260240 DOI: 10.1016/j.ecoenv.2012.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 11/04/2012] [Accepted: 11/05/2012] [Indexed: 06/01/2023]
Abstract
Previously we have shown a toxic effect of the organometallic compound triphenyllead (TPhPb) on cells. In the present study we evaluated the destructive effect of TPhPb on model systems--serum albumin and liposome membranes--alone and under UVB irradiation. UVB irradiation of bovine serum albumin results in protein S-S bond reduction, free SH- and CO- group formation and decrease in fluorescence intensity of tryptophans. Triphenyllead chloride alone and under UVB irradiation did not induce protein oxidation, measured as formation of carbonyl groups, in serum albumin; however, it decreased the content of SH- groups in both cases (alone and under UVB radiation) in a dose-dependent manner. It was found that triphenyllead chloride alone did not induce lipid peroxidation of liposomes but increased their fluidity. However, under UVB irradiation TPhPb dramatically enhances the pro-oxidant action of UVB in a manner dependent on concentration and intensity of radiation, and these effects were suppressed by Trolox. These results suggest that the toxicity of TPhPb under UVB irradiation is due to formation of radical forms of the compound and its disordered effects on the membrane structure.
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Affiliation(s)
- Janina Gabrielska
- Wroclaw University of Environmental and Life Sciences, CK Norwida 25/27, Wroclaw, Poland
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Wojnicz D, Sycz Z, Walkowski S, Gabrielska J, Aleksandra W, Alicja K, Anna SŁ, Hendrich AB. Study on the influence of cranberry extract Żuravit S·O·S(®) on the properties of uropathogenic Escherichia coli strains, their ability to form biofilm and its antioxidant properties. Phytomedicine 2012; 19:506-514. [PMID: 22306419 DOI: 10.1016/j.phymed.2011.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 11/21/2011] [Accepted: 12/25/2011] [Indexed: 05/31/2023]
Abstract
Consumption of cranberries is known to exert positive health effects, especially against urinary tract infections. For this reason, presumably, they are widely used in folk medicine. Different aspects of cranberry phenolics activity were studied in individual papers but complex study in this matter is missing. The aim of the present study is to provide complex data concerning various aspects of cranberry extract activity. We studied the effects of subinhibitory concentrations of commercially available extract (Żuravit S·O·S(®)) against two Escherichia coli strains isolated from urine of patients with pyelonephritis. Additionally the main extract anthocyanins were characterized. The activity of extract against lipid peroxidation and its radical scavenging ability were also assessed. Żuravit S·O·S(®) decreased the hydrophobicity of one of the studied E. coli strains, reduced swimming motility and adhesion to epithelial cells of both studied strains, it also limited the ability of bacteria to form biofilm. Expression of curli was not affected by cranberry extract, the assessment of P fimbriae expression was not reliable due to extract-induced agglutination of erythrocytes. Cranberry extract caused filamentation in both studied E. coli strains. It also showed pronounced antioxidant and radical scavenging properties. The properties of the studied cranberry extract show that it could be effectively used in prevention and/or elimination of urinary tract infections, specially the recurrent ones.
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Affiliation(s)
- Dorota Wojnicz
- Department of Medical Biology and Parasitology, Wrocław Medical University, Mikulicza-Radeckiego 9, 50-367 Wrocław, Poland
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Gabrielska J, Soczyńska-Kordala M, Hładyszowski J, Zyłka R, Miśkiewicz J, Przestalski S. Antioxidative effect of quercetin and its equimolar mixtures with phenyltin compounds on liposome membranes. J Agric Food Chem 2006; 54:7735-46. [PMID: 17002447 DOI: 10.1021/jf060720a] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Our earlier studies have shown that the compounds diphenyltin dichloride (DPhT) and triphenyltin chloride (TPhT) in the presence of UVC radiation enhanced the degree of phosphatidylcholine liposome membrane oxidation (J. Agric. Food Chem. 2005, 53, 76-83). The prooxidative behavior of the compounds has now been confirmed with the electron paramagnetic resonance method, which proved the possibility that the studied compounds can exist in free radical forms. The present work investigates the possibility of the protective action of quercetin on phosphatidylcholine liposome membranes exposed to the prooxidative action of DPhT and TPhT induced by UV radiation (lambda = 253.7 nm). The concentrations of quercetin and its equimolar mixtures with DPhT and TPhT were determined (and compared with well-known antioxidants as standards-trolox and butylated hydroxytoluene, also in the presence of phenyltins) as those that induce 50% inhibition in oxidation of liposomes radiated with UV. They are 5.1 +/- 0.10, 2.9 +/- 0.12, and 1.9 +/- 0.08 microM (differences between the values are statistically significant), constituting the following sequence of antioxidative activity: quercetin:TPhT > quercetin:DPhT > quercetin. This relation is confirmed by the results on the antiradical ability of quercetin and its mixtures with DPhT and TPhT toward the free radical 1,1-diphenyl-2-pricrylhydrazil. Similar sequences obtained in both studies suggest a possible mechanism of the antiradical action of the mixtures as free radical scavengers. We suggested that (i) quercetin's ability, documented by spectrophotometric, infrared attenuated total reflectance spectroscopy, (1)H NMR, and molecular modeling methods, to form complexes with phenyltins indicates a possible way of protection against the peroxidation caused by the free radical forms of phenyltins and (ii) the differentiation in the action of the quercetin/TPhT and quercetin/DPhT associates (statisticaly significant) may result from a different localization in the liposome membrane, which is indicated by the results of the fluorimetric studies.
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Affiliation(s)
- Janina Gabrielska
- Department of Physics and Biophysics, Agricultural University, 50-375 Wrocław, Norwida 25, Poland.
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Gabrielska J, Gagoś M, Gubernator J, Gruszecki WI. Binding of antibiotic amphotericin B to lipid membranes: a 1H NMR study. FEBS Lett 2006; 580:2677-85. [PMID: 16643904 DOI: 10.1016/j.febslet.2006.04.021] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2006] [Revised: 04/05/2006] [Accepted: 04/05/2006] [Indexed: 11/19/2022]
Abstract
The (1)H NMR technique was applied to study binding of AmB, an antifungal drug, to lipid membranes formed with egg yolk phosphatidylcholine. The analysis of (1)H NMR spectra of liposomes, containing also cholesterol and ergosterol (at 40 mol%), shows that AmB binds preferentially to the polar headgroups. Such a binding restricts molecular motion of the choline fragment in the hydrophilic region at the surface of liposomes but increases the segmental motional freedom in the hydrophobic core. The same effects are also observed in the sterol-containing membranes, except that the effect on the hydrophobic core was exclusively observed in the membranes containing ergosterol.
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Affiliation(s)
- Janina Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wrocław, Poland
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Gagoś M, Gabrielska J, Dalla Serra M, Gruszecki WI. Binding of antibiotic amphotericin B to lipid membranes: monomolecular layer technique and linear dichroism-FTIR studies. Mol Membr Biol 2006; 22:433-42. [PMID: 16308277 DOI: 10.1080/09687860500287832] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Amphotericin B (AmB) is one of the main antibiotics applied in treatment of deep-seated mycotic infections. Tensiometric technique has been applied to monitor binding of AmB, from the water subphase, to the lipid monomolecular layers, formed with dipalmitoylphosphatidylcholine at the air-water interface. Time dependencies of surface pressure in the monolayers demonstrate strong enhancement of AmB binding to monolayers brought about by sterols present in the membranes. The monolayers have been deposited to a solid support and examined by means of FTIR spectroscopy. FTIR measurements show that majority of the AmB molecules which bind to the membranes are localized in the polar headgroup region. The results of the linear dichroism-FTIR measurements are consistent with the microscopic picture according to which the molecules of the membrane-bound AmB are distributed among two orientational fractions: one horizontal and one vertical with respect to the plane of the membrane (59% versus 41% respectively, in the case of the membrane formed with the pure lipid without sterols). The presence of cholesterol in the membranes (50 mol% with respect to lipid) slightly affects such a distribution (53% horizontal versus 47% vertical) but the presence of ergosterol has a pronounced effect in the increase in population of the fraction of horizontally bound AmB (85% horizontal vs. 15% vertical). The results of the measurements indicate that mode of action of the AmB consists in disruption of the polar headgroup region of biomembranes, brought about by the AmB molecules bound horizontally with respect to the plane of the membrane.
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Affiliation(s)
- Mariusz Gagoś
- Department of Physics and Biophysics, Agricultural University, Wroclaw, Poland
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Abstract
Cyanidin-3-glycosides (arabinoside, rutinoside, galactoside and glucoside) and delphinidin-3-rutinoside were examined for their ability to inhibit lipid peroxidation induced either by Fe(II) ions, UV irradiation or 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH) peroxyl radicals in a liposomal membrane system. The antioxidant abilities of anthocyanins were compared with a water-soluble tocopherol derivative, trolox. The antioxidant efficacies of these compounds were evaluated by their ability to inhibit the fluorescence intensity decay of the extrinsic probe 3-[p-(6-phenyl)-1,3,5,-hexatrienyl] phenylpropionic acid, caused by the free radicals generated during peroxidation. All the anthocyanins tested (at concentrations of 15-20 microM) exhibited higher antioxidant activities against Fe(II)-induced peroxidation than UV- and AAPH-induced peroxidation, suggesting that metal chelation may play an important role in determining the antioxidant potency of these compounds. It was also found that delphinidin-3-rutinoside had a higher antioxidant activity against Fe(II)-induced liposome oxidation than cyanidin-3-rutinoside, which indicates an important role of the OH group in the B ring of delphinidin-3-rutinoside in its antioxidant action. The antioxidant activity of all the anthocyanins studied was higher than that of trolox in the case of Fe(II)-induced liposome oxidation and was comparable with the action of trolox in the case of UV- and AAPH-induced liposome membrane oxidation.
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Affiliation(s)
- Janina Gabrielska
- Department of Physics and Biophysics, Argicultural University, Norwida, Poland.
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Sujak A, Gabrielska J, Milanowska J, Mazurek P, Strzałka K, Gruszecki WI. Studies on canthaxanthin in lipid membranes. Biochimica et Biophysica Acta (BBA) - Biomembranes 2005; 1712:17-28. [PMID: 15950595 DOI: 10.1016/j.bbamem.2005.03.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2004] [Revised: 03/18/2005] [Accepted: 03/24/2005] [Indexed: 11/26/2022]
Abstract
Polar carotenoid pigment - canthaxanthin - has been found to interfere with the organization of biological membranes, in particular of the retina membranes of an eye of primates. The organization of lipid membranes formed with dipalmitoylphosphatidylcholine (DPPC) and egg yolk phosphatidylcholine containing canthaxanthin was studied by means of several techniques including: electronic absorption spectroscopy, linear dichroism, X-ray diffractometry, (1)H-NMR spectroscopy and FTIR spectroscopy. It appears that canthaxanthin present in the lipid membranes at relatively low concentration (below 1 mol% with respect to lipid) modifies significantly physical properties of the membranes. In particular, canthaxanthin (i) exerts restrictions to the segmental molecular motion of lipid molecules both in the headgroup region and in the hydrophobic core of the bilayer, (ii) promotes extended conformation of alkyl lipid chains, (iii) modifies the surface of the lipid membranes (in particular in the gel state, L(beta )) and promotes the aggregation of lipid vesicles. It is concluded that canthaxanthin incorporated into lipid membranes is distributed among two pools: one spanning the lipid bilayer roughly perpendicularly to the surface of the membrane and one parallel to the membrane, localized in the headgroup region. The population of the horizontal fraction increases with the increase in the concentration of the pigment in the lipid phase. Such a conclusion is supported by the linear dichroism analysis of the oriented lipid multibilayers containing canthaxanthin: The mean angle between the dipole transition moment and the axis normal to the plane of the membrane was determined as 20+/-3 degrees at 0.5 mol% and 47+/-3 degrees at 2 mol% canthaxanthin. The analysis of the absorption spectra of canthaxanthin in the lipid phase and (1)H-NMR spectra of lipids point to the exceptionally low aggregation threshold of the pigment in the membrane environment (approximately 1 mol%). All results demonstrate a very strong modifying effect of canthaxanthin with respect to the dynamic and structural properties of lipid membranes.
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Affiliation(s)
- Agnieszka Sujak
- Department of Biophysics, Institute of Physics, Maria Curie-Skłodowska University, Lublin, Poland
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Gabrielska J, Soczyńska-Kordala M, Przestalski S. Antioxidative effect of kaempferol and its equimolar mixture with phenyltin compounds on UV-irradiated liposome membranes. J Agric Food Chem 2005; 53:76-83. [PMID: 15631512 DOI: 10.1021/jf0401120] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The work investigates the possibility of the protective action of kaempferol on phosphatidylcholine liposome membranes exposed to the pro-oxidative action of diphenyltin dichloride (DPhT) and triphenyltin chloride (TPhT) induced by UV radiation (lambda = 253.7 nm). The concentrations of kaempferol and its equimolar mixtures with DPhT and TPhT were determined so that they induce 50% inhibition in oxidation of liposomes irradiated with UV. They are 11.6, 10.0, and 4.5 microM/L, which constitute the following sequence of antioxidative activity: kaempferol/triphenyltin > kaempferol/diphenyltin > kaempferol. This relationship is confirmed by the results on the antiradical ability of kaempferol and its mixtures with DPhT and TPhT toward the free radical 2,2-diphenyl-1-picrylhydrazyl. Similar sequences obtained in both studies suggest a possible mechanism of the antiradical action of the mixtures as free radical scavengers. Kaempferol's ability, then documented, to form complexes with phenyltins indicates (a) a possible way to liquidate the peroxidation caused by the free radical forms of phenyltins and (b) the stabilizing role of chelating in the antioxidative action of the kaempferol/phenyltins. The differentiation in the action of the compounds studied may, among others, result from different localizations in the liposome membrane, which is indicated by the results of the fluorometric studies.
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Affiliation(s)
- Janina Gabrielska
- Department of Physics and Biophysics, Agricultural University, Norwida 25, 50-375 Wrocław, Poland.
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Miszta A, Gabrielska J, Przestalski S, Langner M. The effect of phenyltin chlorides on osmotically induced erythrocyte haemolysis. Appl Organomet Chem 2005. [DOI: 10.1002/aoc.895] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Olżyńska A, Przybyło M, Gabrielska J, Trela Z, Przestalski S, Langner M. Di- and tri-phenyltin chlorides transfer across a model lipid bilayer. Appl Organomet Chem 2005. [DOI: 10.1002/aoc.970] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Gabrielska J, Przestalski S, Miszta A, Soczyńska-Kordala M, Langner M. The effect of cholesterol on the adsorption of phenyltin compounds onto phosphatidylcholine and sphingomyelin liposome membranes. Appl Organomet Chem 2003. [DOI: 10.1002/aoc.561] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kubica K, Langner M, Gabrielska J. The dependence of Fluorescein-PE fluorescence intensity on lipid bilayer state. Evaluating the interaction between the probe and lipid molecules. Cell Mol Biol Lett 2003; 8:943-54. [PMID: 14668917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023] Open
Abstract
The degree of dependence of a lipid bilayer's surface properties on its conformational state is still an unresolved question. Surface properties are functions of molecular organization in the complex interfacial region. In the past, they were frequently measured using fluorescence spectroscopy. Since a fluorescent probe provides information on its local environment, there is a need to estimate the effect caused by the probe itself. In this paper, we address this question by calculating how lipid head-group orientation effects the fluorescence intensity of Fluorescein-PE (a probe that is sensitive to surface potential). In the theoretical model assumed the lipid bilayer state and the interactions between the charged fluorescent probe and the surrounding lipid molecules was evaluated. The results of this theoretical analysis were compared with experimentally obtained data. A lipid bilayer formed from DPPC was chosen as the experimental system, since it exhibits all the major conformational states within a narrow temperature range of 30 degrees C-45 degrees C. Fluorescein-PE fluorescence intensity depends on local pH, which in turn is sensitive to local electrostatic potential in the probe's vicinity. This local electrostatic potential is generated by lipid head-group dipole orientation. We have shown that the effect of the probe on lipid bilayer properties is limited when the lipid bilayer is in the gel phase, whereas it is more pronounced when the membrane is liquid-crystalline. This implies that Fluorescein-PE is a good reporter of local electrostatic fields when the lipid bilayer is in the gel phase, and is a poor reporter when the membrane is in the liquid-crystalline state.
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Affiliation(s)
- Krystian Kubica
- Agricultural University, Department of Physics and Biophysics, Norwida 25, 50-375 Wrocław, Poland
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Gabrielska J, Soczyńska-Kordala M, Przestalski S. The structure-property relationships of flavonoid compounds as potential detoxicants. Cell Mol Biol Lett 2002; 7:283. [PMID: 12097954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Affiliation(s)
- Janina Gabrielska
- Department of Physics and Biophysics, Agricultural University, Norwida 25, 50-375 Wrocław, Poland
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31
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Hladyszowski J, Gabrielska J, Ordon P, Przestalski S, Langner M. The effect of steric constraints on the adsorption of phenyltin onto the dipalmitoylphosphatidylcholine bilayer. J Membr Biol 2002; 189:213-23. [PMID: 12395286 DOI: 10.1007/s00232-002-1016-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2001] [Indexed: 11/24/2022]
Abstract
In this paper, we present studies concerning phenyltin adsorption onto the dipalmitoylphosphatidylcholine bilayer. Phenyltin compounds are known to be biologically active, and their molecular geometry makes it possible to study the effect of steric constraints on their ability to penetrate the model lipid membrane. Using a fluorescence probe as a reporter of the amount of adsorbed compound, we evaluated their affinity to the membrane as a function of the membrane state. The amount of the adsorbed compound was found to depend on the adsorbing molecule's geometry and lipid bilayer organization. The fluorescence measurements were supported by the density functional theory (DFT) method of quantum mechanical computations. The penetrant location was correlated with the possible relative positions of its polar and hydrophobic moieties to determine if it could adopt structural requirements of the local membrane environment. Molecules were deformed by a model force, mimicking interactions within the membrane interfacial region. Computations show that the diphenyltin molecule can be deformed to such an extent that it can adopt an amphiphilic conformation. Triphenyltin is different, as its bending requires more energy. Born repulsion energies from hydrophobic fluid into water for phenyltins were also computed in an isodensity-polarized continua model of DFT computation. Our results indicate that the phenyltin compounds incorporate into the interface of the lipid membrane, although diphenyltin integrates more deeply than triphenyltin, which locates on the double layer's surface, and this is due to the fact that the main role is played by steric and not electrostatic interactions.
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Affiliation(s)
- J Hladyszowski
- Department of Physics and Biophysics, Agricultural University of Wrocław, ul. Norwida 25, 50-375 Wrocław, Poland.
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Soczyńska-Kordala M, Bakowska A, Oszmiański J, Gabrielska J. Metal ion-flavonoid associations in bilayer phospholipid membranes. Cell Mol Biol Lett 2002; 6:277-81. [PMID: 11598647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
The complexation process of the transition (Cu(2+), Fe(2+)) and heavy (Pb(2+)) metals with flavonoids (quercetin and rutin) was studied. The investigation was conducted using the spectrophotometric method in a medium containing phosphatidylcholine liposome membrane and in methanol. The Benesi-Hildebrand method was used to determine the constants of flavonoid-metal complex formation of the "charge transfer" type, and the Gibbs free energy change for that process. It was found that both quercetin and rutin are very effective at complexing transition atoms in both methanol and in the lipid bilayer. Pb(II) ions were only complexed in methanol. A short discussion is given on the importance of metal coordination processes in the context of lipid membrane peroxidation.
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Affiliation(s)
- M Soczyńska-Kordala
- Department of Friut and Vegetable Technology, Agricultural University, Norwida 25, 50-235 Wrocław, Poland
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Przestalski S, Sarapuk J, Kleszczyńska H, Gabrielska J, Hladyszowski J, Trela Z, Kuczera J. Influence of amphiphilic compounds on membranes. Acta Biochim Pol 2001; 47:627-38. [PMID: 11310965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
On the basis of Gortel & Grendel (J. Exp. Med., 1925, 41, 439-494) discovery, the importance of the lipid bilayer as an integral and indispensible component of the cell membrane is discussed. In particular, attention focuses on the interaction between membranes and amphiphilic substances. The effect on membranes of quaternary ammonium salts, both in the form of pesticides and oxidants as well as organic compounds of tin and lead are discussed in greater detail.
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Affiliation(s)
- S Przestalski
- Department of Physics and Biophysics, Agricultural University, Wrocław, Poland.
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Przestalski S, Sarapuk J, Kleszczyńska H, Gabrielska J, Hladyszowski J, Trela Z, Kuczera J. Influence of amphiphilic compounds on membranes. Acta Biochim Pol 2000. [DOI: 10.18388/abp.2000_3984] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
On the basis of Gortel & Grendel (J. Exp. Med., 1925, 41, 439-494) discovery, the importance of the lipid bilayer as an integral and indispensible component of the cell membrane is discussed. In particular, attention focuses on the interaction between membranes and amphiphilic substances. The effect on membranes of quaternary ammonium salts, both in the form of pesticides and oxidants as well as organic compounds of tin and lead are discussed in greater detail.
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Gabrielska J, Kral T, Langner M, Przestalski S. Different effects of di- and triphenyltin compounds on lipid bilayer dithionite permeabilization. Z NATURFORSCH C 2000; 55:758-63. [PMID: 11098827 DOI: 10.1515/znc-2000-9-1014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Phenyltins are chemicals widely used in industry, hence their occurrence in the human environment is frequent and widespread. Such compounds include hydrophobic phenyl rings bonded to positively charged tin. This molecular structure makes them capable of adsorbing onto and penetrating through biological membranes, hence they are potentially hazardous. Two such compounds, diphenyltin and triphenyltin, show different steric constraints when interacting with the lipid bilayer. It has been demonstrated that these compounds are positioned at different locations within model lipid bilayers, causing dissimilarity in their ability to affect membrane properties. In this paper we present a study regarding the ability of these two phenyltins to facilitate the transport of S2O4(-2) ions across the lipid bilayer, evaluated by a fluorescence quenching assay. In concentration range of up-to 60 microM those compounds do not affect lipid bilayer topology, when evaluated by vesicle size distribution. Both phenyltins facilitate the transfer of S2O4(-2) across the model lipid bilayer, but the dependence of dithionite transport on phenyltin concentration is different for both. In principle, above 20 microM triphenyltin is more efficient in transferring ions across the lipid bilayer than diphenyltin.
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Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wrocław, Poland.
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Sujak A, Gabrielska J, Grudziński W, Borc R, Mazurek P, Gruszecki WI. Lutein and zeaxanthin as protectors of lipid membranes against oxidative damage: the structural aspects. Arch Biochem Biophys 1999; 371:301-7. [PMID: 10545218 DOI: 10.1006/abbi.1999.1437] [Citation(s) in RCA: 242] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two main xanthophyll pigments are present in the membranes of macula lutea of the vision apparatus of primates, including humans: lutein and zeaxanthin. Protection against oxidative damage of the lipid matrix and screening against excess radiation are the most likely physiological functions of these xanthophyll pigments in macular membranes. A protective effect of lutein and zeaxanthin against oxidative damage of egg yolk lecithin liposomal membranes induced by exposure to UV radiation and incubation with 2, 2'-azobis(2-methypropionamidine)dihydrochloride, a water-soluble peroxidation initiator, was studied. Both lutein and zeaxanthin were found to protect lipid membranes against free radical attack with almost the same efficacy. The UV-induced lipid oxidation was also slowed down by lutein and zeaxanthin to a very similar rate in the initial stage of the experiments (5-15 min illumination) but zeaxanthin appeared to be a better photoprotector during the prolonged UV exposure. The decrease in time of a protective efficacy of lutein was attributed to the photooxidation of the carotenoid itself. Both lutein and zeaxanthin were found to slightly modify mechanical properties of the liposomes in a very similar fashion as concluded on the basis of H(1) NMR and diffractometric measurements of pure egg yolk membranes and membranes pigmented with the xanthophylls. Linear dichroism analysis of the mean orientation of the dipole transition moment of the xanthophylls incorporated to the lipid multibilayers revealed essentially different orientation of zeaxanthin and lutein in the membranes. Zeaxanthin was found to adopt roughly vertical orientation with respect to the plane of the membrane. The relatively large orientation angle between the transition dipole and the axis normal to the plane of the membrane found in the case of lutein (67 degrees in the case of 2 mol% lutein in EYPC membranes) was interpreted as a representation of the existence of two orthogonally oriented pools of lutein, one following the orientation of zeaxanthin and the second parallel with respect to the plane of the membrane. The differences in the protective efficacy of lutein and zeaxanthin in lipid membranes were attributed to a different organization of zeaxanthin-lipid and lutein-lipid membranes.
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Affiliation(s)
- A Sujak
- Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland
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Abstract
The antioxidative activity of three anthocyanin pigments, extracted from the fruits of chokeberry, honeysuckle and sloe, were studied. Lipid oxidation in the liposome membrane, induced by UV radiation, was evaluated with a thiobarbituric acid-reactive substances assay. The antioxidant efficiency of the studied compounds follows this sequence: chokeberry > sloe > honeysuckle. The extract concentrations at which a 50% reduction of phosphatidylcholine oxidation was observed, were respectively: 48, 54 and 60 mg/l. The end products of lipid membrane oxidation were evaluated using HPLC. It was found that the antioxidative potency of anthocyanin extracts is concentration-dependent. As shown by EPR technique the efficiency of the extracts to eliminate free radicals from the solution follows the order of the antioxidant activity.
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Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wrocław, Poland.
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Gabrielska J, Oszmiański J, Zyłka R, Komorowska M. Antioxidant activity of flavones from Scutellaria baicalensis in lecithin liposomes. Z NATURFORSCH C 1997; 52:817-23. [PMID: 9463939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The antioxidant effect of a trihydroxyflavone extract from Scutellaria baicalensis on oxidation induced by ultraviolet light, was studied with phosphatidylcholine liposome membrane. Also, as standards, the antioxidative activity of baicalin, wogonin, baicalein and butylated hydroxytoluene (BHT) was investigated. Comparison of the protective effects of the compounds studied against photoinduced lipid peroxidation in lecithin liposome membranes showed that: (1) the inhibitory effect of those compounds (at 1.2 mol% antioxidant content in liposomes) on TBA reactive materials from lipid peroxidation decreased in the order of baicalin > BHT approximately equal to Scutellaria baicalensis. These were found much greater than wogonin and baicalein; (2) the depressed effect of those compounds (at 1.1 mol% compounds content in liposomes) on the production of conjugated dienes (proportional to oxidation index) could be classified as follows: Scutellaria baicalensis approximately equal to baicalin > BHT, these three were found more active much greater than baicalein and wogonin. Results obtained by ESR measurement confirm that Scutellaria baicalensis extract and the BHT compound significantly depressed the effect of liposome oxidation. It was found that the new trihydroxyflavones of Scutellaria baicalensis, ensured a very satisfactory concentration-dependent protection of the liposome membrane against UV-induced oxidation. These findings suggest that some of the beneficial effects of the extract of the Scutellaria baicalensis can be mediated in certain diseases (for example in skin diseases) by their ability to scavenge free radicals and by their protective effect on lipid peroxidation caused by sunlight irradiation.
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Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Norwida, Wrocław
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41
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Gabrielska J, Sarapuk J, Przestalski S. Role of hydrophobic and hydrophilic interactions of organotin and organolead compounds with model lipid membranes. Z NATURFORSCH C 1997; 52:209-16. [PMID: 9213411 DOI: 10.1515/znc-1997-3-412] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The present study was conducted to clarify the mechanism of toxicity of organic compounds using lipid model membranes (liposomes and planar lipid membranes). The compounds studied were trialkyltin and trialkyllead chlorides, dialkyltin dichlorides and some inorganic forms of those metals. Two different (anionic and cationic) detergents were also used in the experiments to change the surface properties of liposomes. As a measure of interaction between the compounds studied and model membranes were the release of liposome bound praseodymium and the change in stability of planar membranes under the influence of those compounds. On the basis of the results obtained it was postulated that the mechanism of interaction between tin- and leadorganics and model lipid membranes is a combination of different factors featuring interacting sides. The most important properties determining the behaviour of organic compounds in the interaction were lipophilicity and polarity of different parts of the organics and the steric arrangement they can take in the medium. On the other hand, the surface potential of the lipid bilayer and the environment of the lipid molecules, that play a significant role in the availability of the lipid bilayer to the organics, were important factors in the interaction.
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Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wroclaw, Poland
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Gabrielska J, Oszmiański J, Lamer-Zarawska E. Protective effect of plant flavonoids on the oxidation of lecithin liposomes. Pharmazie 1997; 52:170-1. [PMID: 9122280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wrocław, Poland
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Witek S, Oświecimska M, Lachowicz TM, Krasowska A, Przestalski S, Kleszczyńska H, Gabrielska J. Functionalized permeatoxins: derivatives of dihydrocinnamic acid with antioxidant function. Folia Microbiol (Praha) 1997; 42:254-6. [PMID: 9378427 DOI: 10.1007/bf02819000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- S Witek
- Department of Chemistry, Technical University of Wrocław, Poland
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45
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Gabrielska J, Gruszecki WI. Zeaxanthin (dihydroxy-beta-carotene) but not beta-carotene rigidifies lipid membranes: a 1H-NMR study of carotenoid-egg phosphatidylcholine liposomes. Biochim Biophys Acta 1996; 1285:167-74. [PMID: 8972700 DOI: 10.1016/s0005-2736(96)00152-6] [Citation(s) in RCA: 126] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
1H-NMR technique was applied to study liposomes formed with egg-yolk phosphatidylcholine containing as an additional component two carotenoid pigments: beta-carotene or zeaxanthin (dihydrohy-beta-carotene). A strong rigidifying effect of zeaxanthin but not of beta-carotene with respect to hydrophobic core of lipid bilayer was concluded from the carotenoid-dependent broadening of the NMR lines assigned to -CH2- groups and terminal -CH3 groups of lipid alkyl chains. A similar effect of zeaxanthin with respect to polar headgroups was concluded on the basis of the effect of the pigment on the shape of NMR lines attributed to -N+(CH3)3 groups. In contrast, beta-carotene increases motional freedom of lipid polar headgroups. The inclusion of both carotenoids to liposomes resulted in the enhanced penetration of Pr3+ ions to the polar zone of the external layer of a membrane monitored by the splitting of the -N+(CH3)3 signal, the effect of beta-carotene being much more pronounced. Differences in the effect on membrane structure and molecular dynamics observed for beta-carotene and its polar derivative are discussed in terms of organization of a carotenoid-containing lipid membrane.
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Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wroclaw, Poland
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Gabrielska J, Kleszczyriska H, Przestalski S. Protective Effect of Amphiphilic Ammonium Salts on the Oxidation of Lecithin Liposomes. Z NATURFORSCH C 1995. [DOI: 10.1515/znc-1995-11-1216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The inhibition effect of selected amphiphilic quaternary alkyl-substituted ammonium salts on oxidation of the lecithin liposome membrane was studied, induced by ultraviolet light and Fe2+ ions with ascorbic acid added. The salts differed in alkyl chain length Ri having the following alkyl substitutents: R1 = C9H19; R2 = C10H21; R3 = C12H25; R4 = CH2OC14H29; R5 = CH2OC16H33.
It was found that all the salts used induced inhibition in oxidation of the liposome membrane, both that induced by UV light and ferrous ions. The antioxidant activity of the salts studied, dependent on the chain length and concentration, can be represented by the relation R1 < R2< R3 < R4 < R5. A similar dependence was obtained when the hemolytic activity
of compounds was studied. Activity of salts increase with alkyl chain length.
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Abstract
When model membranes are prepared by ultrasonic treatment of polyunsaturated phospholipids, radical production can induce a partial degradation of the polyunsaturated fatty acyl chains and the formation of lipid hydroperoxides. A suitable antioxidant employed during liposome preparation is able to protect them against lipid peroxidation. This work contains the results of studies on egg lecithin liposomes with incorporated antioxidants that were supposed to play the protective role mentioned. As it has been shown the antioxidant compounds used ensured a 40-60%, i.e., satisfactory protection of liposomes after 30 min sonication. Possible practical applications are discussed.
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Affiliation(s)
- J Gabrielska
- Department of Physics and Biophysics, Agricultural University, Wrocław, Poland
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48
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Witek S, Oświecimska M, Lachowicz TM, Bałakuszew A, Przestalski S, Kuczera J, Sarapuk J, Kleszczyńska H, Gabrielska J, Hładyszowski J. General biological properties of antioxidant permeatoxins and their influence on natural and model membranes. Folia Microbiol (Praha) 1994; 39:559-60. [PMID: 8550024 DOI: 10.1007/bf02814108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- S Witek
- Technical University of Wrocław, Poland
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