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Žižić M, Atlagić K, Karaman M, Živić M, Stanić M, Maksimović V, Zakrzewska J. Uptake of vanadium and its intracellular metabolism by Coprinellus truncorum mycelial biomass. J Trace Elem Med Biol 2024; 83:127381. [PMID: 38211406 DOI: 10.1016/j.jtemb.2024.127381] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 12/26/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024]
Abstract
BACKGROUND Fungi absorb and solubilize a broad spectrum of heavy metals such as vanadium (V), which makes them a main route of its entry into the biosphere. V as vanadate (V5+) is a potential medical agent due to its many metabolic actions such as interaction with phosphates in the cell, and especially its insulin-mimetic activity. Antidiabetic activity of V-enriched fungi has been studied in recent years, but the biological and chemical bases of vanadium action and status in fungi in general are poorly understood, with almost no information on edible fungi. METHODS This manuscript gives a deeper insight into the interaction of V5+ with Coprinellus truncorum, an edible autochthonous species widely distributed in Europe and North America. Vanadium uptake and accumulation as V5+ was studied by 51V NMR, while the reducing abilities of the mycelium were determined by EPR. 31P NMR was used to determine its effects on the metabolism of phosphate compounds, with particular focus on phosphate sugars identified using HPLC. RESULTS Vanadate enters the mycelium in monomeric form and shows no immediate detrimental effects on intracellular pH or polyphosphate (PPc) levels, even when applied at physiologically high concentrations (20 mM Na3VO4). Once absorbed, it is partially reduced to less toxic vanadyl (V4+) with notable unreduced portion, which leads to a large increase in phosphorylated sugar levels, especially glucose-1-phosphate (G1P) and fructose-6-phosphate (F6P). CONCLUSIONS Preservation of pH and especially PPc reflects maintenance of the energy status of the mycelium, i.e., its tolerance to high V5+ concentrations. Rise in G1P and F6P levels implies that the main targets of V5+ are most likely phosphoglucomutase and phosphoglucokinase(s), enzymes involved in early stages of G6P transformation in glycolysis and glycogen metabolism. This study recommends C. truncorum for further investigation as a potential antidiabetic agent.
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Affiliation(s)
- Milan Žižić
- Department of Life Sciences, University of Belgrade, Institute for Multidisciplinary Research, Kneza Višeslava 1, 11030 Belgrade, Serbia; Elettra -Sincrotrone Trieste, Strada Statale 14 - km 163, 5 in AREA Science Park, Trieste, Italy.
| | - Kristina Atlagić
- Department of Physiology and Biophysics, University of Belgrade, Faculty of Biology, Studentski trg 16, 11158 Belgrade, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
| | - Miroslav Živić
- Department of Physiology and Biophysics, University of Belgrade, Faculty of Biology, Studentski trg 16, 11158 Belgrade, Serbia
| | - Marina Stanić
- Department of Life Sciences, University of Belgrade, Institute for Multidisciplinary Research, Kneza Višeslava 1, 11030 Belgrade, Serbia
| | - Vuk Maksimović
- Department of Life Sciences, University of Belgrade, Institute for Multidisciplinary Research, Kneza Višeslava 1, 11030 Belgrade, Serbia
| | - Joanna Zakrzewska
- Institute of General and Physical Chemistry, Studentski trg 12, 11158 Belgrade, Serbia
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Rašeta M, Mišković J, Berežni S, Kostić S, Kebert M, Matavulj M, Karaman M. Antioxidant proficiency in Serbian mushrooms: a comparative study on Hydnum repandum L. 1753 from mycorrhizal and edible niches. Nat Prod Res 2024:1-8. [PMID: 38598360 DOI: 10.1080/14786419.2024.2341300] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/03/2024] [Indexed: 04/12/2024]
Abstract
This study aimed to evaluate the antioxidant potential of autochthonous Hydnum repandum through LC-MS/MS profiling, total phenolic content (TP), total protein content (TPR), and antioxidant capabilities (DPPH, ABTS, and FRAP assays) across various extracts (CHCl3, acetone, 70% EtOH, 80% MeOH, and hot water). LC-MS/MS analysis revealed a predominant presence of quinic acid in polar solvents (ranging from 531.37 to 676.07 ng/mL), while EtOH and MeOH extracts exhibited elevated total phenolic levels (27.44 ± 0.32 and 28.29 ± 3.62 mg GAE/g d.w., respectively). Impressively, H. repandum showcased remarkable antioxidant properties, as evidenced by its FRAP values (57.29 to 199.96 mg AAE/g d.w.), ABTS values (5.69 to 29.95 mg TE/g d.w.), and IC50 values in the DPPH assay (91.40 to 372.55 μg/mL), which exhibited a strong correlation with TP. Notably, the acetone extract exhibited the most robust antioxidant activity where the highest TPR was observed, suggesting synergism of primary and secondary metabolites.
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Affiliation(s)
- Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
- Department of Biology and Ecology, ProFungi Laboratory, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Jovana Mišković
- Department of Biology and Ecology, ProFungi Laboratory, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Sanja Berežni
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Saša Kostić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Marko Kebert
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Milan Matavulj
- Department of Biology and Ecology, ProFungi Laboratory, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, ProFungi Laboratory, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
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Rašeta M, Kebert M, Mišković J, Rakić M, Kostić S, Čapelja E, Karaman M. Polyamines in Edible and Medicinal Fungi from Serbia: A Novel Perspective on Neuroprotective Properties. J Fungi (Basel) 2023; 10:21. [PMID: 38248931 PMCID: PMC10816940 DOI: 10.3390/jof10010021] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/23/2024] Open
Abstract
The therapeutic effectiveness of current neurodegenerative disease treatments is still under debate because of problems with bioavailability and a range of side effects. Fungi, which are increasingly recognized as sources of natural antioxidants and acetylcholinesterase (AChE) enzyme inhibitors, may thus serve as potent neuroprotective agents. Previous studies have associated the anti-AChE and antioxidant activities of fungi mostly with polysaccharides and phenolic compounds, while other secondary metabolites such as polyamines (PAs) have been neglected. This study aimed to investigate eight edible and medicinal fungi from Serbia, marking the initial investigation into the neuroprotective capabilities of Postia caesia, Clitocybe odora, Clitopilus prunulus, and Morchella elata. Neuroprotective activity was examined using the Ellman assay, while the antioxidant capacity was tested by conducting DPPH, NO, ABTS, and FRAP tests. PA levels were determined by high-performance liquid chromatography (HPLC) coupled with fluorescent detection. Ganoderma applanatum and Lepista nuda exhibited the most robust anti-AChE (98.05 ± 0.83% and 99.94 ± 3.10%, respectively) and antioxidant activities, attributed to the synergistic effects of the total protein, total phenolic, and PA levels. Furthermore, P. caesia displayed significant AChE inhibition (88.21 ± 4.76%), primarily linked to the elevated spermidine (SPD) (62.98 ± 3.19 mg/kg d.w.) and putrescine (PUT) levels (55.87 ± 3.16 mg/kg d.w.). Our results highlight the need for thorough research to comprehend the intricate relationships between distinct fungus species and AChE inhibition. However, it is important to recognize that more research is required to identify the precise substances causing the reported inhibitory effects.
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Affiliation(s)
- Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Marko Kebert
- Institute of Lowland Forestry and Environment, University of Novi Sad, Antona Čehova 13d, 21000 Novi Sad, Serbia (S.K.)
| | - Jovana Mišković
- ProFungi Laboratory, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia (M.R.); (E.Č.); (M.K.)
| | - Milana Rakić
- ProFungi Laboratory, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia (M.R.); (E.Č.); (M.K.)
| | - Saša Kostić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Antona Čehova 13d, 21000 Novi Sad, Serbia (S.K.)
| | - Eleonora Čapelja
- ProFungi Laboratory, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia (M.R.); (E.Č.); (M.K.)
| | - Maja Karaman
- ProFungi Laboratory, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia (M.R.); (E.Č.); (M.K.)
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Kladar N, Božin B, Bijelić K, Bogavac M, Karaman M, Srđenović Čonić B, Rat M, Anačkov G. Biological Activity of Genus Hypericum Sect. Hypericum Species- H. tetrapterum, H. maculatum subsp. immaculatum, H. triquetrifolium. Molecules 2023; 28:6218. [PMID: 37687046 PMCID: PMC10488818 DOI: 10.3390/molecules28176218] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
St. John's wort (Hypericum perforatum, Hypericaceae) has long been used in traditional medicine as a potent remedy, while many other species of this genus have not been thoroughly investigated. The study aimed to detect the biological activity, including antioxidant, antihyperglycemic, anticholinergic, antimicrobial and monoaminoxidase inhibitory potential, of water-alcoholic extracts of three species autochthonous for Serbia and Greece from plant genus Hypericum (section Hypericum-H. tetrapterum, H. maculatum ssp. immaculatum and H. triquetrifolium), followed by phytochemical profiling. The highest amount of phenolics was recorded in H. maculatum subsp. immaculatum extract, while the highest abundance of flavonoids was characteristic of H. tetrapterum extract. Hypericin and hyperforin, quercetin, and its flavonoid, rutin, were present in all of the evaluated species. The evaluated species were good scavengers of DPPH, OH and NO radicals, as well as potent reducers of ferric ions in FRAP assay. Furthermore, the evaluated species were shown as potent inhibitors of monoaminoxidase A and α-glucosidase and modest inhibitors of acetylcholinesterase, monoaminoxidase B and α-amylase. No anti-Candida activity was recorded, but the extracts were effective against MRSA Staphylococcus aureus and Enterococcus sp., as well as against Proteus mirabilis. The obtained results strongly highlight the need for further in vivo studies in order to better define the potential of the medicinal application of the studied species.
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Affiliation(s)
- Nebojša Kladar
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
- Center for Medical and Pharmaceutical Investigations and Quality Control, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Biljana Božin
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Katarina Bijelić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
- Center for Medical and Pharmaceutical Investigations and Quality Control, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Mirjana Bogavac
- Clinical Center of Vojvodina, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
| | - Branislava Srđenović Čonić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
- Center for Medical and Pharmaceutical Investigations and Quality Control, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Milica Rat
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
| | - Goran Anačkov
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
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Rašeta M, Mišković J, Čapelja E, Zapora E, Petrović Fabijan A, Knežević P, Karaman M. Do Ganoderma Species Represent Novel Sources of Phenolic Based Antimicrobial Agents? Molecules 2023; 28:molecules28073264. [PMID: 37050027 PMCID: PMC10096548 DOI: 10.3390/molecules28073264] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
Ganoderma species have been recognized as potential antimicrobial (AM) agents and have been used in traditional Chinese medicine (TCM) for a long time. The aim of this study is to examine the AM potential of autochthonous Ganoderma species (G. applanatum, G. lucidum, G. pfeifferi and G. resinaceum) from Serbia. The extraction of fungal material was prepared in different solvents (ethanol-EtOH, water-H2O, chloroform-CHCl3). Antibacterial activity (ABA) was determined using disk-diffusion, agar-well diffusion, and micro-dilution method, while for antifungal properties disk-diffusion and pour plate method were applied. Antiviral activity was tested on model DNA virus LK3 and determined by plaque assay. Statistical PCA analysis was applied for detection of correlation effects of phenolics and AM activities, while LC-MS/MS was performed for phenolics quantification. G. resinaceum CHCl3 extract expressed the most potent ABA against P. aeruginosa (MIC = 6.25 mg/mL), probably due to presence of flavonoids and 2,5-dihydroxybenzoic acid. Among H2O extracts, the highest ABA was determined for G. pfeifferi against both E. coli and S. aureus (21 and 19 mm, respectively). EtOH extracts of G. pfeifferi and G. resinaceum were the most effective against A. niger (23.8 and 20.15 mm, respectively), with special impact of phenolic acids and flavonoid isorhamnetin, while C. albicans showed the lowest susceptibility. The most potent antiviral inhibitor was G. lucidum (70.73% growth inhibition) due to the high amount of phenolic acids. To the best of our knowledge, this is the first report of a methodical AM profile of G. pfeifferi and G. resinaceum from the Balkan region including PCA analysis.
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Affiliation(s)
- Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Jovana Mišković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia
| | - Eleonora Čapelja
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia
| | - Ewa Zapora
- Institute of Forest Sciences, Białystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland
| | - Aleksandra Petrović Fabijan
- Centre for Infectious Diseases and Microbiology, Westmead Institute for Medical Research, 176 Hawkesbury Road, Westmead, NSW 2145, Australia
| | - Petar Knežević
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia
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Bogavac MA, Perić TM, Mišković J, Karaman M. Antimicrobial and Toxic Effects of Boswellia serrata Roxb. and Mentha piperita Linn. Essential Oils on Vaginal Inhabitants. Medicines (Basel) 2022; 9:medicines9120062. [PMID: 36547995 PMCID: PMC9784983 DOI: 10.3390/medicines9120062] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Commercial essential oils (EOs) of incense, Boswellia serrata Roxb, and mint, Mentha piperita L., were investigated against vaginal bacterial and Candida albicans isolates for antimicrobial potential and safety use. The antimicrobial activity of EOs was investigated through a double-dilution micro-plate assay. A brine shrimp assay was used for the determination of toxicity, while the determination of the chemical composition of EOs was carried out using GS-MS. Obtained minimal inhibitory (MIC) and minimal bactericidal concentration (MBC) point to the activity of mint essential oil (EO) against the multi-resistant P. aeruginosa isolate (MIC/MBC at 6.25 µL/mL), while MIC and MBC values for other isolates were reached at higher concentrations (25-50 µL/mL). According to the toxicity assay, the incense EO reached the LC50 value at 3.07 µL/mL, while mint EO showed higher toxicity at lower concentrations (0.5 µL/mL) and the LC50 could not be determined. The highest antimicrobial potential was obtained for incense against P. aeruginosa. Although the toxicity assay showed high toxicity of mint EO to the eggs of aquatic crustaceans Artemia salina, further testing of EO toxicity is proposed, for example on healthy cell-lines. According to the GC/MS spectrometry, the most represented components of mint EO were the oxygenated hydrocarbons L-menthone (20.86%) and menthol (31.86%), and they could be proposed for further antimicrobial and toxicity investigation.
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Affiliation(s)
- Mirjana A. Bogavac
- Department of Obstetrics and Gynecology, Clinical Centre of Vojvodina, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
- Correspondence:
| | - Tamara M. Perić
- PHI Hospital “Sveti Vračevi“, Srpske Vojske 53, 76300 Bijeljina, Bosnia and Herzegovina
- Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Jovana Mišković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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Rakić M, Marković M, Galić Z, Galović V, Karaman M. Diversity and Distribution of Macrofungi in Protected Mountain Forest Habitats in Serbia and Its Relation to Abiotic Factors. J Fungi (Basel) 2022; 8:jof8101074. [PMID: 36294640 PMCID: PMC9605310 DOI: 10.3390/jof8101074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/15/2022] [Accepted: 09/27/2022] [Indexed: 11/25/2022] Open
Abstract
Fungal diversity is one of the most important indicators of overall forest biodiversity and its health. However, scarce information exists on the state of macrofungal communities of mountain forests in Serbia, making it one of the countries with the least-published mycological data in the Mediterranean and Balkan region of Europe. This paper presents the results of the first comprehensive, long-term study of macrofungal communities in some of the most important mountain forest ecosystems in Serbia (Tara, Kopaonik and Vidlič). In the course of three consecutive years, the sampling of five permanent experimental plots resulted in 245 species of macrofungi, classified into three functional groups (terricolous saprothrophs, lignicolous, and mycorrhizal fungi). Special attention was given to protected and indicator species, which point out the great value of studied forest habitats and the importance of their conservation. It was found that precipitation, habitat humidity, and temperature significantly influence the occurrence and distribution, primarily of mycorrhizal and lignicolous group of fungi. Thus, the continuation of long-term monitoring is crucial in order to more precisely determine which groups/species of macrofungi would, and to what extent they would, adapt to a rapidly changing climate.
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Affiliation(s)
- Milana Rakić
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia
- Correspondence:
| | - Miroslav Marković
- Institute of Lowland Forestry and Environment, University of Novi Sad, Antona Čehova 13, 21000 Novi Sad, Serbia
| | - Zoran Galić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Antona Čehova 13, 21000 Novi Sad, Serbia
| | - Vladislava Galović
- Institute of Lowland Forestry and Environment, University of Novi Sad, Antona Čehova 13, 21000 Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia
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Atlagić K, Živić M, Jakovljević D, Marković Filipović J, Šibul F, Pejin B, Karaman M. Cytotoxic activity of the crude polysaccharides/exopolysaccharides of Coprinus comatus and Coprinellus truncorum. Nat Prod Res 2022; 37:1838-1843. [PMID: 36054821 DOI: 10.1080/14786419.2022.2118743] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Fungi are an important source of polysaccharides (PSH) and phenolic compounds (PC). Numerous studies have highlighted the beneficial effects of fungal consumption, but the impact of submerged cultivated mycelia (M) and filtrate (F) has not been fully investigated. We aimed to investigate the cytotoxic activity of isolated crude PSH and exopolysaccharides (ePSH) of submerged cultivated M and F of edible Coprinus comatus and Coprinellus truncorum species. Both PSH and ePSH exhibited significant cytotoxic activity towards HepG2 cancer cells of human origin (three-way ANOVA). The C. truncorum PSH/ePSH was more efficient inducing maximal reduction in cell viability (≈50% at 450 µg/mL) after 24 h while C. comatus PSH/ePSH needed 72 h to reach similar effect (≈60% at 450 µg/mL). Partial least square regression (PLSR) analysis indicated that specific phenolic composition of the PSH/ePSH could be responsible for the difference in their activity.
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Affiliation(s)
- Kristina Atlagić
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Miroslav Živić
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Dragica Jakovljević
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy - ICTM, University of Belgrade, Belgrade, Serbia
| | | | - Filip Šibul
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Boris Pejin
- Department of Life Sciences, Institute for Multidisciplinary Research - IMSI, University of Belgrade, Belgrade, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
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Mišković J, Rašeta M, Čapelja E, Krsmanović N, Novaković A, Karaman M. Mushroom Species Stereum hirsutum as Natural Source of Phenolics and Fatty Acids as Antioxidants and Acetylcholinesterase Inhibitors. Chem Biodivers 2021; 18:e2100409. [PMID: 34467660 DOI: 10.1002/cbdv.202100409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/30/2021] [Indexed: 01/12/2023]
Abstract
Many lignicolous mushroom species are used as a food supplement and may represent an alternative treatment of Alzheimer's disease (AD). This study aimed to evaluate acetylcholinesterase inhibition (AChEI) of Stereum hirsutum together with antioxidant activity (AO) and cytotoxic activity against HepG2 cells. Different extracts (water, ethanol, methanol, polysaccharide) were analyzed, with respect to their mineral composition and chemical content. Ethanol extract was the most potent in AChEI (98.44 %) and demonstrated cytotoxic activity (91.96 % at 900.00 μg/mL), while the highest AO was demonstrated for polar extracts (methanol and water) as well. These activities may be attributed to determined phenolics (hydroxybenzoic and quinic acid) and fatty acids (FA), while biflavonoid amentoflavone may be responsible for cytotoxic activity. The most prevalent FA was linoleic (40.00 %) and the domination of unsaturated FA (UFA) (71.91 %) over saturated (26.96 %) was observed. This is the first report of AChEI of S. hirsutum extracts and first detection of amentoflavone. Due to high amount of UFA and well-expressed AChEI, this species can be considered as a potent food supplement in the palliative therapy of AD.
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Affiliation(s)
- Jovana Mišković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia
| | - Eleonora Čapelja
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Nenad Krsmanović
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Aleksandra Novaković
- Institute of Food Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000, Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
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Mišković J, Karaman M, Rašeta M, Krsmanović N, Berežni S, Jakovljević D, Piattoni F, Zambonelli A, Gargano ML, Venturella G. Comparison of Two Schizophyllum commune Strains in Production of Acetylcholinesterase Inhibitors and Antioxidants from Submerged Cultivation. J Fungi (Basel) 2021; 7:jof7020115. [PMID: 33557141 PMCID: PMC7913866 DOI: 10.3390/jof7020115] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 12/13/2020] [Revised: 01/15/2021] [Accepted: 01/20/2021] [Indexed: 12/03/2022] Open
Abstract
In recent years, fungi have been recognized as producers of acetylcholinesterase (AChE) inhibitors, agents important for the prevention of Alzheimer’s disease (AD). This study aimed to examine the AChE inhibitory, the antioxidative and antibacterial activity of two different Schizophyllum commune strains that originated from Serbia (SRB) and Italy (IT). Submerged cultivation of grown mycelia (M) and fermentation broth (F) of ethanol (EtOH) and polysaccharide (PSH) extracts lasted for 7, 14, 21 and 28 days. For AChE activity Ellman method was performed, while for antioxidative activity, sevendifferent assays were conducted: DPPH, ABTS, FRAP, SOA, OH, NO together with total phenolic content. Antimicrobial screen, LC–MS/MS technique and FTIR measurements were performed. Different isolates exhibited different AChE activity, with PSH being the strongest (SRB, M, 28 days IC90 79.73 ± 26.34 µg/mL), while in EtOH extracts, IT stood out (F, 14 days, IC50 0.8 ± 0.6 µg/mL). PSH extracts (7 days) exhibit significant antioxidative activity (AO), opposite to EtOH extracts where 14 and 21days periods stood out. Only tw extracts showed antibacterial activity. Following LC–MS/MS analysis p-hydroxybenzoic and gallic acids were the most abundant phenolics. PSH extracts demonstrated remarkable results, making this study debut and introducing S. commune as a valuable resource of AChE inhibitors.
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Affiliation(s)
- Jovana Mišković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, TrgDositejaObradovića 2, 21000 Novi Sad, Serbia; (J.M.); (N.K.)
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, TrgDositejaObradovića 2, 21000 Novi Sad, Serbia; (J.M.); (N.K.)
- Correspondence:
| | - Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia; (M.R.); (S.B.)
| | - Nenad Krsmanović
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, TrgDositejaObradovića 2, 21000 Novi Sad, Serbia; (J.M.); (N.K.)
| | - Sanja Berežni
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia; (M.R.); (S.B.)
| | - Dragica Jakovljević
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Federica Piattoni
- Laboratory of Genetics & Genomics of Marine Resources and Environment (GenoDream), Department Biological, Geological & Environmental Sciences (BiGeA), University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy;
| | - Alessandra Zambonelli
- Dipartimento di Scienze e Tecnologie Agroalimentari, University of Bologna, Via Fanin 46, 40127 Bologna, Italy;
| | - Maria Letizia Gargano
- Department of Agricultural and Environmental Science, University of Bari “Aldo Moro”, Via Amendola 165/A, I-70126 Bari, Italy;
| | - Giuseppe Venturella
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Via delle Scienze, Bldg. 4, 90128 Palermo, Italy;
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Rašeta M, Popović M, Beara I, Šibul F, Zengin G, Krstić S, Karaman M. Anti-Inflammatory, Antioxidant and Enzyme Inhibition Activities in Correlation with Mycochemical Profile of Selected Indigenous Ganoderma spp. from Balkan Region (Serbia). Chem Biodivers 2020; 18:e2000828. [PMID: 33289240 DOI: 10.1002/cbdv.202000828] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/04/2020] [Indexed: 11/10/2022]
Abstract
The aim of this research work was to study the bioactivity potentials (antioxidant, anti-inflammatory, and enzyme inhibitory) of ethanol (EtOH), water (H2 O) and chloroform (CHCl3 ) extracts of G. applanatum, G. lucidum, G. pfeifferi and G. resinaceum as well as their mycochemical profile: the total content of phenolics (TP) and sugars (TS) and LC/MS/MS detection of phenolics. LC/MS/MS profile showed that p-hydroxybenzoic and protocatechuic acids were mostly found. The highest ABTS and DPPH activities were detected in polar G. applanatum extracts (159.84±0.59 mg TE/g d.w., IC50 =0.85±0.30 μg/mL, respectively), while G. resinaceum CHCl3 extract was the most potent in NO assay (IC50 =41.21±0.18-81.89±0.81 μg/mL). The highest TP and TS were generally determined in G. applanatum EtOH extracts. Enzyme inhibitory effects were determined in H2 O extracts. Generally, CHCl3 extracts showed the most powerful anti-inflammatory potential. These results suggest that analyzed species are a promising source of bioactive compounds and may be considered as candidates for new food supplements or drug formulations.
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Affiliation(s)
- Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Mira Popović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Ivana Beara
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Filip Šibul
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Alaeddin Keykubat Yerleskesi, Selcuklu, 42130, Konya, Turkey
| | - Sanja Krstić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 2, 21000, Novi Sad, Serbia
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Rašeta M, Popović M, Knežević P, Šibul F, Kaišarević S, Karaman M. Bioactive Phenolic Compounds of Two Medicinal Mushroom Species Trametes versicolor and Stereum subtomentosum as Antioxidant and Antiproliferative Agents. Chem Biodivers 2020; 17:e2000683. [PMID: 33058392 DOI: 10.1002/cbdv.202000683] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/13/2020] [Indexed: 01/19/2023]
Abstract
Medicinal mushrooms have tremendous potential in production of bioactive compounds with diverse bioactivities while the biochemical potential of some specific mushroom strains (autochthonous for the region) in production of specific bioactive agents may be of the main importance in a continuous search for novel strains with supreme activities all over the world. In this study, the ethanolic (EtOH) and water (H2 O) extracts of wild-growing polypore mushroom species were investigated: Trametes versicolor (L.) Lloyd and Stereum subtomentosum Pouzar. This study was designed to determine total phenol (TP), flavonoid (TF) and protein content (TPR) as well as LC/MS/MS phenolic profile related to in vitro antioxidant, antiproliferative (MTT assay) (AP) and DNA fragmentation properties. The H2 O extracts expressed better antioxidant scavenging potential than EtOH showing the highest activity for the T. versicolor (IC50 =5.6 μg/mL, IC50 =0.6 μg/mL for DPPH. and OH. , respectively) while O2 .- activity achieved the best activity for S. subtomentosum (IC50 =4.1 μg/mL). In contrary, the highest AP activity was obtained for the EtOH extracts of S. subtomentosum (IC50 =141.1 μg/mL). The EtOH extracts of both species showed the highest TP, TF and TPR content. Obtained results of DNA degradation indicate genotoxicity potential of the extracts at high concentration. The LC/MS/MS detection showed that the majority of analyzed extracts contained phenolic acids, p-hydroxybenzoic and protocatechuic acid. The obtained results suggest that analyzed medicinal mushroom species, T. versicolor and S. subtomentosum, could be of potential interest as new sources of strong natural antioxidants as well as antiproliferative agents in the future.
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Affiliation(s)
- Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 3, 21000, Novi Sad, Serbia
| | - Mira Popović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 3, 21000, Novi Sad, Serbia
| | - Petar Knežević
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 2, 21000, Novi Sad, Serbia
| | - Filip Šibul
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 3, 21000, Novi Sad, Serbia
| | - Sonja Kaišarević
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 2, 21000, Novi Sad, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 2, 21000, Novi Sad, Serbia
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Yilmaz M, Romano M, Basarali MK, Elzagallaai A, Karaman M, Demir Z, Demir MF, Seyrek M, Akcay F, Haksever N, Piskin D, Cimaz R, Rieder M, Demirkaya E. FRI0547 THE EFFECT OF CORRECTED INFLAMMATION, OXIDATIVE STRESS AND ENDOTHELIAL DYSFUNCTION ON FMD LEVELS IN PATIENTS WITH SELECTED CHRONIC DISEASES: A QUASI-EXPERIMENTAL STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4953] [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: 11/03/2022]
Abstract
Background:While the pathophysiology of chronic disorders varies there are three basic mechanisms - inflammation, oxidative stress and endothelial dysfunction – that are common in many chronic diseases. These mechanisms, which have a dynamic structure, are key to homeostasis. However, the failure of these mechanisms to work synchronously can lead to morbidity complicating the course of many chronic diseases.Objectives:To evaluate the effect of anti-atherosclerotic liquid (AAL), anti-inflammatory capsules (AIC) and anti-oxidant liquid (AOL) supplementation on the flow-mediated dilatation (FMD), inflammatory, oxidative stress and endothelial dysfunction markers in patients with selected chronic diseasesMethods:We analyzed data of 178 patients from cohorts with selected chronic diseases (Rheumatoid arthritis, familial Mediterranean fever, DM type-2, Hypertension, Multiple sclerosis, Chronic obstructive pulmonary disease, Alzheimer disease and Cancer) in this quasi-experimental study. Endothelial dysfunction was determined by FMD and serum asymmetric dimethylarginine (ADMA) levels. Serum ADMA, high sensitive C-reactive protein (hs-CRP), serum PTX3, malondialdehyde (MDA), Cu/Zn-superoxide dismutase (Cu/Zn-SOD), glutathione peroxidase (GSH-Px) levels and FMD were studied in baseline and after 12 weeks of Morinda citrifolia (AAL, 3 ml once per day), omega-3 (AIC, 3 capsules once per day) and extract with Alaskan blueberry and 21 different red purple fruit vegetables (AOL, 30 ml once per day). Stepwise multivariate regression analysis evaluated the association of FMD with clinical and serologic parameters.Results:Serum ADMA, MDA, PTX3, hsCRP and albumin levels, and proteinuria were significantly decreased and CuZn-SOD, GSH-Px and FMD levels were significantly increased following AAL, AIC and AOL therapies. FMD was negatively correlated with serum ADMA, MDA, PTX3, hsCRP levels, SBP and DBP and positively correlated to CuZn-SOD and eGFR levels both at baseline and after the 12-weeks treatment period. Multivariate regression analysis revealed that ADMA and PTX3 levels were independently related to FMD both before and after AAL, AIC and AOL therapies (Table 1, Figure 1).Conclusion:Our study shows that serum ADMA, MDA, PTX3 levels are associated with endothelial dysfunction in patients with selected chronic diseases. Short-term AAL, AIC and AOL therapies significantly improves FMD and normalizes ADMA, PTX3, hsCRP and MDA. This may have implications for adjunctive therapy in a number of chronic disorders.References:[1] Yilmaz MI, Saglam M, Caglar K, Cakir E, Sonmez A, Ozgurtas T et al. The determinants of endothelial dysfunction in CKD: oxidative stress and asymmetric dimethylarginine. Am J Kidney Dis. 2006;47(1):42-50. doi:10.1053/j.ajkd.2005.09.029.Disclosure of Interests:None declared
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Subramaniam M, Goh P, Lau W, Ismail A, Karaman M. Enhanced visible light photocatalytic degradation of organic pollutants by iron doped titania nanotubes synthesized via facile one-pot hydrothermal. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.02.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Karaman M, Vraneš M, Tot A, Papović S, Miljaković D, Gadžurić S, Ignjatov M. Ionic liquids as potentially new antifungal agents against Alternaria species. RSC Adv 2020; 10:22318-22323. [PMID: 35514570 PMCID: PMC9054575 DOI: 10.1039/d0ra02475a] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/16/2020] [Indexed: 11/21/2022] Open
Abstract
The fungal genus Alternaria Nees 1816 includes the most prevalent pathogenic species that can cause crop diseases such as blight, black spot, and dark leaf spot. In accordance with the aim of developing modern sustainable approaches in agriculture for the replacement of synthetic and toxic substances with environmentally friendly alternatives, the objective of this study was to examine the in vitro antifungal activities of 18 newly synthesized ionic liquids (ILs) against three Alternaria strains: A. padwickii, A. dauci and A. linicola. The antifungal activities of the ILs were estimated via a microdilution method to establish minimal inhibitory concentration (MIC) and minimal fungicidal concentration (MFC) values. The results confirmed that 17 of the 18 ILs showed strain specificity, including good antifungal activity toward Alternaria strains, with MIC and MFC values in the range of 0.04 to 0.43 mol dm−3. The strongest antifungal effects toward all analyzed Alternaria strains were displayed by the compounds with long alkyl chains: [omim][Cl] (MIC/MFC: 0.042 mol dm−3), [dmim][Cl] (MIC/MFC: 0.043 mol dm−3), [ddmim][Cl] (MIC/MFC: 0.053 mol dm−3), [ddTSC][Br] (MIC/MFC: 0.053 mol dm−3), and [Allyl-mim][Cl] (MIC/MFC: 0.054 mol dm−3). The introduction of oxygen as a hydroxyl group resulted in less-pronounced toxicity towards Alternaria compared to the introduction of an ether group, while the contribution of the hydroxyl group was shown to be a more determining factor than the prolongation of the side-chain, resulting in overall fungicidal activity decrease. Our results indicate the possibility that the most effective ILs ([Allyl-mim][Cl], [omim][Cl], [dmim][Cl], [ddmim][Cl], [bTSC][Br], [hTSC][Br], [oTSC][Br], [dTSC][Br], and [ddTSC][Br]) could be applied to the control of plant diseases caused by Alternaria species, based on their potential as an environmentally friendly crop protection approach. Since salts based on TSC cations are significantly cheaper to synthesize, stable under mild conditions, and environmentally friendly after degradation, thiosemicarbazidium-based ILs can be a suitable replacement for commercially available imidazolium ILs. The objective of this study was to examine the in vitro antifungal activities of 18 newly synthesized ionic liquids (ILs) against three Alternaria strains: A. padwickii, A. dauci and A. linicola.![]()
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Affiliation(s)
- Maja Karaman
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Milan Vraneš
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Aleksandar Tot
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Snežana Papović
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | | | | | - Maja Ignjatov
- Institute of Field and Vegetable Crops
- 21000 Novi Sad
- Serbia
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16
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Rašeta M, Popović M, Čapo I, Stilinović N, Vukmirović S, Milošević B, Karaman M. Antidiabetic effect of two different Ganoderma species tested in alloxan diabetic rats. RSC Adv 2020; 10:10382-10393. [PMID: 35498606 PMCID: PMC9050389 DOI: 10.1039/c9ra10158f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/03/2020] [Indexed: 11/21/2022] Open
Abstract
This study was designed to define total protein, phenol and flavonoid content as well as LC-MS/MS phenolic profile related to antioxidant and antidiabetic activity of ethanolic (EtOH) and water extracts of G. pfeifferi and G. resinaceum. G. resinaceum water extract possessed the highest ability to scavenge DPPH˙ and O2˙−, while the EtOH extract of the same species showed better activity on NO˙ related to other extracts. The highest level of bioactive compounds was determined generally in EtOH extracts. Antidiabetic action was evaluated by the oral glucose tolerance test (OGTT) and histological examination of pancreas and liver in normoglycemic and alloxan-induced diabetic animals. Histological examination of pancreatic tissue demonstrated that G. pfeifferi extracts have protective effects. To conclude, analysed extracts could be considered as a promising candidate for further research with the aim to promote antidiabetic activity, which is for the first time reported for G. pfeifferi. Antidiabetic potentials of G. pfeifferi and G. resinaceum were obtained in this study and found to be of even higher bioactivity than the previously reported and well known G. lucidum.![]()
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Affiliation(s)
- Milena Rašeta
- Department of Chemistry
- Biochemistry and Environmental Protection
- Faculty of Sciences
- University of Novi Sad
- 21000 Novi Sad
| | - Mira Popović
- Department of Chemistry
- Biochemistry and Environmental Protection
- Faculty of Sciences
- University of Novi Sad
- 21000 Novi Sad
| | - Ivan Čapo
- Department of Histology and Embryology
- Faculty of Medicine Novi Sad
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Nebojša Stilinović
- Department of Pharmacology
- Toxicology and Clinical Pharmacology
- Faculty of Medicine
- University of Novi Sad
- 21000 Novi Sad
| | - Saša Vukmirović
- Department of Pharmacology
- Toxicology and Clinical Pharmacology
- Faculty of Medicine
- University of Novi Sad
- 21000 Novi Sad
| | - Biljana Milošević
- Department of Chemistry
- Biochemistry and Environmental Protection
- Faculty of Sciences
- University of Novi Sad
- 21000 Novi Sad
| | - Maja Karaman
- Department of Biology and Ecology
- Faculty of Sciences
- University of Novi Sad
- 21000 Novi Sad
- Serbia
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Subramaniam M, Goh P, Sevgili E, Karaman M, Lau W, Ismail A. Hydroxypropyl methacrylate thin film coating on polyvinylidene fluoride hollow fiber membranes via initiated chemical vapor deposition. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109360] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Weinrebe W, Schiefer Y, Weckmüller K, Schulz RJ, Rupp S, Bischoff S, Karaman M, Goetz S, Heppner HJ, Polidori MC. Does the identification of seniors at risk (ISAR) score effectively select geriatric patients on emergency admission? Aging Clin Exp Res 2019; 31:1839-1842. [PMID: 30623316 DOI: 10.1007/s40520-018-1105-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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] [Received: 09/24/2018] [Accepted: 12/14/2018] [Indexed: 01/01/2023]
Abstract
The number of older patients admitted to emergency departments (ED) increases continuously. The Identification of Seniors at Risk (ISAR) score is currently recommended to screen patients in German ED, but its appropriateness is being criticized. ISAR scores and clinical characteristics from 98 emergency admissions (EA), 80 from acute geriatrics (AG) and 89 from a geriatric rehabilitation (GR) unit were compared retrospectively. No significant differences were found between groups, being the ISAR score positive in 87.7% of EA, 94.9% of AG and 94.4% of GR cases. None of positively identified geriatric patients in the EA was transferred to the geriatric ward of competence. EA patients showed significantly higher number of functional impairments (p = 0.001) and higher BI score (p < 0.0001) compared to AG and GR groups. A higher ISAR score threshold and additional functional information might be needed to better select patients in need of prompt treatment by a geriatric team.
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Affiliation(s)
- W Weinrebe
- Department of Geriatrics, Hospital Meyriez and Tafers, HFR, University Fribourg, Fribourg, Switzerland.
| | - Y Schiefer
- Ageing Clinical Research, Department of Internal Medicine II, University Hospital Cologne, Cologne, North Rhine Westphalia, Germany
| | - K Weckmüller
- Clinic for Orthopedics and Trauma Surgery, Coblenz, Rhineland-Palatibate, Germany
| | - R J Schulz
- Department of Geriatrics, St. Marien Hospital, Cologne, North Rhine Westphalia, Germany
| | - S Rupp
- Department of Geriatrics/Rehabilitation, Clinic Wartenberg, Wartenberg, Bavaria, Germany
| | - S Bischoff
- Outpatient Clinic for Occupational Therapy, Bad Friedrichshall, Baden-Württemberg, Germany
| | - M Karaman
- Institute for Biostatistics, Berlin, Germany
| | - S Goetz
- Department of Geriatrics, Hospital Meyriez and Tafers, HFR, University Fribourg, Fribourg, Switzerland
| | - H J Heppner
- Department of Geriatrics, Helios Clinic Schwelm, University Witten-Herdecke, Witten, North Rhine Westphalia, Germany
| | - M C Polidori
- Ageing Clinical Research, Department of Internal Medicine II, University Hospital Cologne, Cologne, North Rhine Westphalia, Germany
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Karaman M, Atlagić K, Novaković A, Šibul F, Živić M, Stevanović K, Pejin B. Fatty Acids Predominantly Affect Anti-Hydroxyl Radical Activity and FRAP Value: The Case Study of Two Edible Mushrooms. Antioxidants (Basel) 2019; 8:antiox8100480. [PMID: 31614797 PMCID: PMC6827024 DOI: 10.3390/antiox8100480] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 09/01/2019] [Revised: 09/20/2019] [Accepted: 09/21/2019] [Indexed: 12/29/2022] Open
Abstract
Compared to plants, nowadays mushrooms attract more attention as functional foods, due to a number of advantages in manipulating them. This study aimed to screen the chemical composition (fatty acids and phenolics) and antioxidant potential (OH•, 2,2-diphenyl-1-picrylhydrazyl (DPPH•) and ferric reducing ability of plasma (FRAP)) of two edible mushrooms, Coprinus comatus and Coprinellus truncorum, collected from nature and submerged cultivation. Partial least square regression analysis has pointed out the importance of some fatty acids—more precisely, unsaturated fatty acids (UFAs) followed by fatty acids possessing both short (C6:0 and C8:0) and long (C23:0 and C24:0) saturated chains—and phenolic compounds (such as protocatechuic acid, daidzein, p-hydroxybenzoic acid, genistein and vanillic acid) for promising anti-OH•, FRAP and anti-DPPH• activities, respectively. However, other fatty acids (C16:0, C18:0 and C18:3n3) along with the flavonol isorhamnetin are actually suspected to negatively affect (by acting pro-oxidative) the aforementioned parameters, respectively. Taken together, design of new food supplements targeting oxidative stress might be predominantly based on the various UFAs combinations (C18:2n6, C20:1, C20:2, C20:4n6, C22:2, C22:1n9, etc.), particularly if OH• is suspected to play an important role.
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Affiliation(s)
- Maja Karaman
- Department of Biology and Ecology - DBE, Faculty of Sciences - PMF, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.
| | - Kristina Atlagić
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Studentski trg 16, 11158 Belgrade, Serbia.
| | - Aleksandra Novaković
- Institute for Food Technology - FINS, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia.
| | - Filip Šibul
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences - PMF, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia.
| | - Miroslav Živić
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Studentski trg 16, 11158 Belgrade, Serbia.
| | - Katarina Stevanović
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Studentski trg 16, 11158 Belgrade, Serbia.
| | - Boris Pejin
- Department of Life Sciences, Institute for Multidisciplinary Research - IMSI, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia.
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Karaman M, Tesanovic K, Gorjanovic S, Pastor FT, Simonovic M, Glumac M, Pejin B. Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient. Nat Prod Res 2019; 35:1711-1716. [PMID: 31192702 DOI: 10.1080/14786419.2019.1628753] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This study was focused on in vitro screening of the total antioxidant activity of the selected extracts of the mushroom Coprinus comatus and quinic acid, one of their antidiabetic ingredients, by an uncommon electrochemical assay. Indeed, direct current (DC) polarographic HydroxoPerhydroxo Mercury(II) Complex (HPMC) assay based on decrease of anodic limiting current originating from HPMC formation in alkaline solutions of hydrogen peroxide at potential of mercury dissolution, observed upon gradual addition of antioxidants, was applied herein for the estimation of the natural products' antioxidativity. Quinic acid was found to exhibit most promising antioxidant potential (4.0 ± 0.2%µL-1) being ≈ 2-fold more active than the screened C. comatus extract samples. Actually, such a finding puts some light on the antioxidativity of cyclic polyols, well understimated class of organic compounds, compared to aromatic (poly)phenolics. As a low cost, easy-to handle and accurate this polarographic assay may be thoroughly recommended for much broader use. [Formula: see text].
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Affiliation(s)
- Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Kristina Tesanovic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia.,Department of Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | | | - Ferenc T Pastor
- Department of Analytical Chemistry, Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | | | - Miodrag Glumac
- School of Food Science and Biotechnology - SFSB, Food Oral Processing Laboratory, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Boris Pejin
- Department of Life Sciences, Institute for Multidisciplinary Research - IMSI, University of Belgrade, Serbia
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Dimitrić N, Spremo N, Vraneš M, Belić S, Karaman M, Kovačević S, Karadžić M, Podunavac-Kuzmanović S, Korolija-Crkvenjakov D, Gadžurić S. New protic ionic liquids for fungi and bacteria removal from paper heritage artefacts. RSC Adv 2019; 9:17905-17912. [PMID: 35520586 PMCID: PMC9064666 DOI: 10.1039/c9ra03067k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 05/28/2019] [Indexed: 01/05/2023] Open
Abstract
In this work, new protic ionic liquids (PILs) with 1-ammonium-2-propanol cation and nine different anions: formate (For), acetate (Ac), lactate (Lac), trifluoroacetate (TFA), chloroacetate (ClA), trichloroacetate (TClA), 3-chloropropionate (3-ClP), 4-chlorobutyrate (4-ClB) and mandelate (Man) were prepared in order to study their antimicrobial activity and possible application for fungi and bacteria removal from deteriorated paper heritage. Ten filamentous fungal strains isolated from specific pigmented area of the damaged books: Trichoderma sp., Cladosporium sp., Penicillium sp.(1−3), Penicillium citrinum, Aspergillus sp.(1,2), Aspergillus flavus, Fusarium graminearum, eight Gram positive and Gram negative ATCC bacterial strains: B. subtilis(6633), S. aureus(6538), E. faecalis(19433), K. rhizophila(9341), E. coli(11229), S. enteritidis(13076), P. mirabilis(12453), P. aeruginosa(15692) and two yeast Candida strains: Candida albicans(ATCC 10231) and Candida albicans(L) were used in this study. The results indicated that antimicrobial activity of selected ionic liquids is significantly affected by the size and specific functional groups in the anion structure. These facts opened the possibility for molecular design of new ionic liquids with strong inhibition properties against the specific bacterial, mould and yeast strains. The significant antimicrobial properties observed in this research suggest that studied PILs may have potential applications in the paper art and artefact cleaning and conservation replacing thus, conventional solvents and organic substances that are toxic for humans and environment. New protic ionic liquids with 1-ammonium-2-propanol cation and nine different anions were prepared in order to study their antimicrobial activity and possible application for fungi and bacteria removal from deteriorated paper heritage.![]()
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Affiliation(s)
- Nataša Dimitrić
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Nemanja Spremo
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Milan Vraneš
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Sanja Belić
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | - Maja Karaman
- Faculty of Science
- University of Novi Sad
- 21000 Novi Sad
- Serbia
| | | | - Milica Karadžić
- Faculty of Technology
- University of Novi Sad
- 21000 Novi Sad
- Serbia
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Žižić M, Zakrzewska J, Tešanović K, Bošković E, Nešović M, Karaman M. Effects of vanadate on the mycelium of edible fungus Coprinus comatus. J Trace Elem Med Biol 2018; 50:320-326. [PMID: 30262298 DOI: 10.1016/j.jtemb.2018.07.017] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 10/28/2022]
Abstract
Vanadate is proposed to play a pivotal role in application of edible fungus Coprinus comatus for medical purposes. In this study the concentration of extracellular vanadate acceptable for the submerged cultivation of C. comatus mycelium was established. The mycelium could grow, and overcome vanadate toxic effects, up to the concentration of 3.3 mM. Moreover, in this condition, at the end of the exponential phase of growth, biomass yield was almost identical to that in the control. 31P NMR spectroscopy showed that addition of 10 mM vanadate to the mycelium in the exponential phase of growth provoked instantaneous increase of a sugar phosphates level which could be related to changes in activities of glycolytic enzymes. Exposure to higher vanadate concentration was toxic for the cell. 51V NMR measurements revealed that monomer of vanadate is present in the cytoplasm causing the metabolic changes. C. comatus has also capacity for vanadate reduction, as shown by EPR measurements, but vanadyl uptake is significantly less comparing to vanadate.
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Affiliation(s)
- Milan Žižić
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia.
| | - Joanna Zakrzewska
- Institute of General and Physical Chemistry, Studentski trg 12 11158 Belgrade, Serbia
| | - Kristina Tešanović
- Department of Physiology and Biophysics, Faculty of Biology, University of Belgrade, Studentski trg 16 11158 Belgrade, Serbia
| | - Eleonora Bošković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
| | - Milica Nešović
- Institute of General and Physical Chemistry, Studentski trg 12 11158 Belgrade, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
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Karaman M, Tesanovic K, Novakovic A, Jakovljevic D, Janjusevic L, Sibul F, Pejin B. Coprinus comatus filtrate extract, a novel neuroprotective agent of natural origin. Nat Prod Res 2018; 34:2346-2350. [DOI: 10.1080/14786419.2018.1533831] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Kristina Tesanovic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
- Department of Physiology and Biophysics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | | | - Dragica Jakovljevic
- Centre of Chemistry, Institute of Chemistry, Technology and Metallurgy − ICTM, University of Belgrade, Belgrade, Serbia
| | - Ljiljana Janjusevic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Filip Sibul
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Boris Pejin
- Department of Life Sciences, Institute for Multidisciplinary Research – IMSI, University of Belgrade, Belgrade, Serbia
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Lenzi M, Cocchi V, Novaković A, Karaman M, Sakač M, Mandić A, Pojić M, Barbalace MC, Angeloni C, Hrelia P, Malaguti M, Hrelia S. Meripilus giganteus ethanolic extract exhibits pro-apoptotic and anti-proliferative effects in leukemic cell lines. Altern Ther Health Med 2018; 18:300. [PMID: 30419892 PMCID: PMC6233556 DOI: 10.1186/s12906-018-2366-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/30/2018] [Indexed: 01/19/2023]
Abstract
Background The interest towards botanicals and plant extracts has strongly risen due to their numerous biological effects and ability to counteract chronic diseases development. Among these effects, chemoprevention which represents the possibility to counteract the cancerogenetic process is one of the most studied. The extracts of mushroom Meripilus giganteus (MG) (Phylum of Basidiomycota) showed to exert antimicrobic, antioxidant and antiproliferative effects. Therefore, since its effect in leukemic cell lines has not been previously evaluated, we studied its potential chemopreventive effect in Jurkat and HL-60 cell lines. Methods MG ethanolic extract was characterized for its antioxidant activity and scavenging effect against different radical species. Moreover, its phenolic profile was evaluated by HPLC-MS-MS analyses. Flow cytometry (FCM) analyses of Jurkat and HL-60 cells treated with MG extract (0–750 μg/mL) for 24–72 h- allowed to evaluate its cytotoxicity, pro-apoptotic and anti-proliferative effect. To better characterize MG pro-apoptotic mechanism ROS intracellular level and the gene expression level of FAS, BAX and BCL2 were also evaluated. Moreover, to assess MG extract selectivity towards cancer cells, its cytotoxicity was also evaluated in human peripheral blood lymphocytes (PBL). Results MG extract induced apoptosis in Jurkat and HL-60 cells in a dose- and time- dependent manner by increasing BAX/BCL2 ratio, reducing ROS intracellular level and inducing FAS gene expression level. In fact, reduced ROS level is known to be related to the activation of apoptosis in leukemic cells by the involvement of death receptors. MG extract also induced cell-cycle arrest in HL-60 cells. Moreover, IC50 at 24 h treatment resulted 2 times higher in PBL than in leukemic cell lines. Conclusions Our data suggest that MG extract might be considered a promising and partially selective chemopreventive agent since it is able to modulate different mechanisms in transformed cells at concentrations lower than in non-transformed ones.
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Niazi M, Karaman M, Das S, Zhou XJ, Yushkevich P, Cai K. Quantitative MRI of Perivascular Spaces at 3T for Early Diagnosis of Mild Cognitive Impairment. AJNR Am J Neuroradiol 2018; 39:1622-1628. [PMID: 30093484 DOI: 10.3174/ajnr.a5734] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 06/02/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The limitations inherent in the current methods of diagnosing mild cognitive impairment have constrained the use of early therapeutic interventions to delay the progression of mild cognitive impairment to dementia. This study evaluated whether quantifying enlarged perivascular spaces observed on MR imaging can help differentiate those with mild cognitive impairment from cognitively healthy controls and, thus, have an application in the diagnosis of mild cognitive impairment. MATERIALS AND METHODS We automated the identification of enlarged perivascular spaces in brain MR Images using a custom quantitative program designed with Matlab. We then quantified the densities of enlarged perivascular spaces for patients with mild cognitive impairment (n = 14) and age-matched cognitively healthy controls (n = 15) and compared them to determine whether the density of enlarged perivascular spaces can serve as an imaging surrogate for mild cognitive impairment diagnosis. RESULTS Quantified as a percentage of volume fraction (v/v%), densities of enlarged perivascular spaces were calculated to be 2.82 ± 0.40 v/v% for controls and 4.17 ± 0.57 v/v% for the mild cognitive impairment group in the subcortical brain (P < .001), and 2.74 ± 0.57 v/v% for the controls and 3.90 ± 0.62 v/v% for the mild cognitive impairment cohort in the basal ganglia (P < .001). Maximum intensity projections exhibited a visually conspicuous difference in the distributions of enlarged perivascular spaces for a patient with mild cognitive impairment and a control patient. By means of receiver operating characteristic curve analysis, we determined the sensitivity and specificity of using enlarged perivascular spaces as a differentiating biomarker between mild cognitive impairment and controls to be 92.86% and 93.33%, respectively. CONCLUSIONS The density of enlarged perivascular spaces was found to be significantly higher in those with mild cognitive impairment compared with age-matched healthy control subjects. The density of enlarged perivascular spaces, therefore, may be a useful imaging biomarker for the diagnosis of mild cognitive impairment.
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Affiliation(s)
- M Niazi
- From the Department of Radiology (M.N., X.J.Z., K.C.).,Chicago College of Osteopathic Medicine (M.N.), Midwestern University, Downers Grove, Illinois
| | - M Karaman
- Center for MR Research (M.K., X.J.Z., K.C.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - S Das
- Department of Radiology (S.D., P.Y.), School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - X J Zhou
- From the Department of Radiology (M.N., X.J.Z., K.C.).,Center for MR Research (M.K., X.J.Z., K.C.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - P Yushkevich
- Department of Radiology (S.D., P.Y.), School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - K Cai
- From the Department of Radiology (M.N., X.J.Z., K.C.) .,Center for MR Research (M.K., X.J.Z., K.C.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois
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Karaman M, Janjušević L, Jakovljević D, Šibul F, Pejin B. Anti-hydroxyl radical activity, redox potential and anti-AChE activity of Amanita strobiliformis polysaccharide extract. Nat Prod Res 2018; 33:1522-1526. [DOI: 10.1080/14786419.2017.1422183] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maja Karaman
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Ljiljana Janjušević
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Dragica Jakovljević
- Institute of Chemistry, Technology and Metallurgy, Centre of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Filip Šibul
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
| | - Boris Pejin
- Department of Life Sciences, Institute for Multidisciplinary Research – IMSI, University of Belgrade, Belgrade, Serbia
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Novaković A, Karaman M, Milovanović I, Torbica A, Tomić J, Pejin B, Sakač M. Nutritional and phenolic profile of small edible fungal species Coprinellus disseminatus (pers.) J.E. Lange 1938. Food & Feed Res 2018. [DOI: 10.5937/ffr1802119n] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Işık S, Karaman M, Micili SÇ, Çağlayan-Sözmen Ş, Bağrıyanık HA, Arıkan-Ayyıldız Z, Uzuner N, Karaman Ö. Sinomenine ameliorates the airway remodelling, apoptosis of airway epithelial cells, and Th2 immune response in a murine model of chronic asthma. Allergol Immunopathol (Madr) 2018; 46:67-75. [PMID: 28778746 DOI: 10.1016/j.aller.2017.05.004] [Citation(s) in RCA: 9] [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] [Received: 01/13/2017] [Revised: 05/12/2017] [Accepted: 05/19/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND Sinomenine (SIN), an alkaloid isolated from the root of Sinomenium acutum which has a variety of pharmacological effects, including anti-inflammation, immunosuppression and anti-angiogenesis. The present study aimed to evaluate the effects of SIN on airway remodelling, epithelial apoptosis, and T Helper (Th)-2 derived cytokine levels in a murine model of chronic asthma. METHODS Twenty-two BALB/c mice were divided into four groups; I (control), II (placebo), III, IV. Mice in groups III and IV received the SIN (100mg/kg), and dexamethasone (1mg/kg) respectively. Epithelium thickness, sub-epithelial smooth muscle thickness, number of mast and goblet cells of samples isolated from the lung were measured. Immunohistochemical scorings of the lung tissue for matrix metalloproteinase-9 (MMP-9), vascular endothelial growth factor (VEG-F), transforming growth factor-beta (TGF-β), terminal deoxynucleotidyl transferase-mediated dUTP nick endlabeling (TUNEL) and cysteine-dependent aspartate-specific proteases (caspase)-3 were determined. IL-4, IL-5, IL-13, Nitric oxide in bronchoalveolar lavage fluid (BALF) and ovalbumin-specific immunoglobulin (Ig) E in serum were quantified by standard ELISA protocols. RESULTS The dose of 100mg/kg SIN treatment provided beneficial effects on all of the histopathological findings of airway remodelling compared to placebo (p<0.05). All cytokine levels in BALF and serum and immunohistochemical scores were significantly lower in 100mg/kg SIN treated group compared to the placebo (p<0.05). CONCLUSIONS These findings suggested that the dose of 100mg/kg SIN improved all histopathological changes of airway remodelling and its beneficial effects might be related to modulating Th-2 derived cytokines and the inhibition of apoptosis of airway epithelial cells.
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Affiliation(s)
- S Işık
- Dokuz Eylul University, Department of Pediatric Allergy and Immunology, Izmir, Turkey.
| | - M Karaman
- Dokuz Eylul University, Department of Microbiology, Izmir, Turkey
| | - S Ç Micili
- Dokuz Eylul University, Department of Histology, Izmir, Turkey
| | - Ş Çağlayan-Sözmen
- Dokuz Eylul University, Department of Pediatric Allergy and Immunology, Izmir, Turkey
| | - H A Bağrıyanık
- Dokuz Eylul University, Department of Histology, Izmir, Turkey
| | - Z Arıkan-Ayyıldız
- Dokuz Eylul University, Department of Pediatric Allergy and Immunology, Izmir, Turkey
| | - N Uzuner
- Dokuz Eylul University, Department of Pediatric Allergy and Immunology, Izmir, Turkey
| | - Ö Karaman
- Dokuz Eylul University, Department of Pediatric Allergy and Immunology, Izmir, Turkey
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Abstract
Objective The aim of this study was to investigate the accuracy of bedside lung ultrasound (BUS) in the diagnosis of community-acquired pneumonia (CAP) in patients with dyspnoea presenting to the emergency department (ED) and to analyse the characteristic sonographic findings of CAP. Methods After a six-hour training program, BUS procedures were performed between October 2011 and February 2012 to prospectively evaluate patients presenting to the ED with dyspnoea. Chest X-ray (CXR) or computerised tomography (CT) were ordered, depending on the presence of consolidation signs on CXR. The outcome was determined by consolidation findings on CXR or CT. BUS results were compared using Chi-squared testing. Results Of the 112 enrolled patients with dyspnoea, 40 patients were excluded and 72 were included in the study. Thirty-four patients were BUS positive. Of these, CXR or CT findings agreed with the BUS findings in 27 patients. In 38 cases, BUS was negative, and one patient was diagnosed with pneumonia based on the CT report. The sensitivity, specificity, PPV, NPV, and the positive and negative likelihood ratios for BUS were 96.4%, 84.1%, 79.4%, 97.4%, 6.1 and 0.042, respectively. The diagnostic accuracy of BUS was 89%. The presence of consolidation signs, either shred or hepatisation, were the most frequent sonographic findings in our study. Conclusions Acute alveolar consolidation can be diagnosed easily by performing BUS with high degree of accuracy in EDs.
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Affiliation(s)
| | | | | | | | - KH Olow
- Benadir University, Faculty of Medicine and Surgery, Mogadishu/Somalia
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Pejin B, Tešanović K, Jakovljević D, Kaišarević S, Šibul F, Rašeta M, Karaman M. The polysaccharide extracts from the fungi Coprinus comatus and Coprinellus truncorum do exhibit AChE inhibitory activity. Nat Prod Res 2017; 33:750-754. [DOI: 10.1080/14786419.2017.1405417] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Boris Pejin
- Department of Life Sciences, Institute for Multidisciplinary Research – IMSI, University of Belgrade, Belgrade, Serbia
| | - Kristina Tešanović
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Dragica Jakovljević
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy – ICTM, University of Belgrade, Belgrade, Serbia
| | - Sonja Kaišarević
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Filip Šibul
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
| | - Milena Rašeta
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
| | - Maja Karaman
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
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Gürsoy M, Harris M, Downing J, Barrientos-Palomo S, Carletto A, Yaprak A, Karaman M, Badyal J. Bioinspired fog capture and channel mechanism based on the arid climate plant Salsola crassa. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.05.071] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gürsoy M, Harris M, Carletto A, Yaprak A, Karaman M, Badyal J. Bioinspired asymmetric-anisotropic (directional) fog harvesting based on the arid climate plant Eremopyrum orientale. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.06.065] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Weinrebe W, Käbe-Frisch S, Füsgen I, Karaman M, Johannsdottir E, Rupp S, Pantel J. Does desmopressin produce more cognitive problems and delirious symptoms in independent geriatric outpatients with nocturnal polyuria (NP)? Eur Geriatr Med 2017. [DOI: 10.1016/j.eurger.2017.04.005] [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: 10/19/2022]
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Janjušević L, Pejin B, Kaišarević S, Gorjanović S, Pastor F, Tešanović K, Karaman M. Trametes versicolor ethanol extract, a promising candidate for health–promoting food supplement. Nat Prod Res 2017; 32:963-967. [DOI: 10.1080/14786419.2017.1366484] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ljiljana Janjušević
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Boris Pejin
- Department of Life Sciences, University of Belgrade, Institute for Multidisciplinary Research – IMSI, Belgrade, Serbia
| | - Sonja Kaišarević
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | | | - Ferenc Pastor
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Kristina Tešanović
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Maja Karaman
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
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Karaman M, Bogavac M, Radovanović B, Sudji J, Tešanović K, Janjušević L. Origanum vulgare essential oil affects pathogens causing vaginal infections. J Appl Microbiol 2017; 122:1177-1185. [PMID: 28176439 DOI: 10.1111/jam.13413] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 01/21/2017] [Accepted: 01/30/2017] [Indexed: 11/27/2022]
Abstract
AIMS This study aimed to investigate the application of Origanum vulgare L. essential oil (EO) as an alternative antimicrobial agent against vaginal infections. METHODS AND RESULTS Microdilution methods were applied for the detection of the minimal inhibitory (MIC) and the minimal bactericidal/fungicidal (MBC/MFC) concentration of 15 clinical strains originating from women with symptoms of vaginal infection. Optical density determination (OD) was used for detection of the Candida growth rate. Staining with DAPI was used to detect the influence of EO on nuclear condensation and fragmentation, while the brine shrimp bioassay was used to determine the toxicity of EO. Chemical composition analysis was done using GS-MS. According to the MIC and MBC/MFC values, the most susceptible strains to EO were: Escherichia coli 1, E. coli 2, Staphylococcus aureus 3 and Candida albicans 1-3. Inhibition of C. albicans filamentation was detected at 0·45 μl ml-1 . CONCLUSIONS The obtained inhibition (%) from Candida growth curves points to a shorter period of time (24 h) for determining IC50 as MIC and IC99 as MFC value. These values could be recommended as valid parameters for the faster detection of the effectiveness of EO on Candida isolates. SIGNIFICANCE AND IMPACT OF THE STUDY Examination of potential of the O. vulgare EO as a main antimicrobial constituent within vaginalettes in gynaecological practice.
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Affiliation(s)
- M Karaman
- Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - M Bogavac
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - B Radovanović
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - J Sudji
- Institute of Occupational Health Novi Sad, Novi Sad, Serbia
| | - K Tešanović
- Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - L Janjušević
- Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
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Janjušević L, Karaman M, Šibul F, Tommonaro G, Iodice C, Jakovljević D, Pejin B. The lignicolous fungus Trametes versicolor (L.) Lloyd (1920): a promising natural source of antiradical and AChE inhibitory agents. J Enzyme Inhib Med Chem 2017; 32:355-362. [PMID: 28097907 PMCID: PMC6010034 DOI: 10.1080/14756366.2016.1252759] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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] [Indexed: 01/13/2023] Open
Abstract
This study aimed to determine antiradical (DPPH• and •OH) and acetylcholinesterase (AChE) inhibitory activities along with chemical composition of autochtonous fungal species Trametes versicolor (Serbia). A total of 38 phenolic compounds with notable presence of phenolic acids were identified using HPLC/MS-MS. Its water extract exhibited the highest antiradical activity against •OH (3.21 μg/mL), among the rest due to the presence of gallic, p-coumaric and caffeic acids. At the concentration of 100 μg/mL, the same extract displayed a profound AChE inhibitory activity (60.53%) in liquid, compared to donepezil (89.05%), a drug in clinical practice used as positive control. The flavonoids baicalein and quercetin may be responsible compounds for the AChE inhibitory activity observed. These findings have demonstrated considerable potential of T. versicolor water extract as a natural source of antioxidant(s) and/or AChE inhibitor(s) to be eventually used as drug-like compounds or food supplements in the treatment of Alzheimer’s disease.
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Affiliation(s)
| | - Maja Karaman
- a Faculty of Sciences, Department of Biology and Ecology
| | - Filip Šibul
- b Department of Chemistry and Biochemistry , University of Novi Sad , Novi Sad , Serbia
| | - Giuseppina Tommonaro
- c CNR-ICB , National Research Council of Italy, Institute of Biomolecular Chemistry , Pozzuoli (Naples) , Italy
| | - Carmine Iodice
- c CNR-ICB , National Research Council of Italy, Institute of Biomolecular Chemistry , Pozzuoli (Naples) , Italy
| | - Dragica Jakovljević
- d Centre of Chemistry , Institute of Chemistry, Technology and Metallurgy, University of Belgrade , Belgrade , Serbia
| | - Boris Pejin
- e Department of Life Sciences , Institute for Multidisciplinary Research - IMSI, University of Belgrade , Belgrade , Serbia
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Novakovic A, Karaman M, Kaisarevic S, Radusin T, llic N. Antioxidant and Antiproliferative Potential of Fruiting Bodies of the Wild-Growing King Bolete Mushroom, Boletus edulis (Agaricomycetes), from Western Serbia. Int J Med Mushrooms 2017; 19:27-34. [DOI: 10.1615/intjmedmushrooms.v19.i1.30] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gumustekin M, Arici A, Cilaker Micili S, Karaman M, Guneli ME, Tekmen I. HGF/C-MET PATHWAY HAS A ROLE IN TESTICULAR DAMAGE IN DIABETES INDUCED BY STREPTOZOTOCIN. Acta Endocrinol (Buchar) 2017; 13:17-22. [PMID: 31149143 DOI: 10.4183/aeb.2017.17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Objective The aim of the study was to investigate the role of Hepatocyte Growth Factor (HGF)/c-Met pathway in testicular damage provoked by streptozotocin (STZ)- induced diabetes and the effects of insulin treatment on the HGF/c-Met pathway. Methods Total 21 paraffin-embedded testicular tissues of control (n=7), streptozotocin (STZ)-induced diabetic (n=7) and insulin-treated diabetic (n=7) Wistar albino rats were used in this study. Testicular damage was examined histologically and by Johnsen's score was also evaluated. Immunohistochemical stainings of HGF and c-Met were analysed by using antibodies against HGF and c-Met. Results We found the degeneration in seminiferous tubule epithelium and disorganization of spermatogenetic cell series in testis tissues of diabetic rats. We also determined decrease both in seminiferous tubule diameter and Johnsen's scores in diabetic group. The expressions of HGF and c-Met in seminiferous tubule epithelium and in spermatogenic cells (especially spermatocytes and spermatids) were significantly increased in diabetic rats compared to those of control. Insulin treatment significantly reduced the diabetes-induced morphological changes and HGF/c-Met over expressions in the diabetic rat testis. Conclusion HGF/c-Met pathway might have a role in diabetes- induced testicular damage. Drugs acting on this pathway might be effective to prevent or delay the testicular damage induced by diabetes.
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Affiliation(s)
- M Gumustekin
- Dokuz Eylul University School of Medicine, Izmir, Turkey
| | - A Arici
- Dokuz Eylul University School of Medicine, Izmir, Turkey
| | | | - M Karaman
- Dokuz Eylul University School of Medicine, Izmir, Turkey
| | - M E Guneli
- Dokuz Eylul University School of Medicine, Izmir, Turkey
| | - I Tekmen
- Dokuz Eylul University School of Medicine, Izmir, Turkey
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Arıkan-Ayyıldız Z, Karaman M, Özbal S, Bağrıyanık A, Yilmaz O, Karaman Ö, Uzuner N. Efficacy of parthenolide on lung histopathology in a murine model of asthma. Allergol Immunopathol (Madr) 2017; 45:63-68. [PMID: 27717727 DOI: 10.1016/j.aller.2016.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/09/2016] [Accepted: 06/22/2016] [Indexed: 01/15/2023]
Abstract
BACKGROUND Parthenolide is the active constituent of the plant 'Tanacetum parthenium' (Feverfew) which has been used for centuries as a folk remedy for inflammatory conditions. AIM OF THE STUDY In this study we aimed to investigate the effects of parthenolide in a murine model of chronic asthma. MATERIALS AND METHODS Thirty-five BALB/c mice were divided into five groups; I (control), II (placebo), III (dexamethasone), IV (parthenolide) and V (dexamethasone and parthenolide combination). Lung histology was evaluated after treatment with the study drugs. Levels of interleukin (IL)-4 and IL-5 were determined by ELISA. RESULTS Histologic parameters except the number of mast and goblet cells improved in the parthenolide group when compared with placebo. All parameters except basal membrane thickness and number of mast cells were improved significantly better in the group receiving dexamethasone when compared with the parthenolide group. Improvement of most of the histologic parameters was similar in Groups III and V. Interleukin-4 levels were significantly reduced in the parthenolide group when compared to the placebo group. CONCLUSION We demonstrated that parthenolide administration alleviated some of the pathological changes in asthma. But parthenolide alone is not efficient as dexamethasone therapy and the parthenolide and dexamethasone combination also did not add any beneficial effect to the dexamethasone treatment.
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Rašeta M, Karaman M, Jakšić M, Šibul F, Kebert M, Novaković A, Popović M. Mineral composition, antioxidant and cytotoxic biopotentials of wild-growingGanodermaspecies (Serbia):G. lucidum(Curtis) P. Karst vs.G. applanatum(Pers.) Pat. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13243] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental protection; Faculty of Sciences; Trg D. Obradovića 3 21000 Novi Sad Serbia
| | - Maja Karaman
- Department of Biology and Ecology; Faculty of Sciences; Trg D. Obradovića 2 21000 Novi Sad Serbia
| | - Milena Jakšić
- SP Laboratorija a.d.; Industrijska 3 21220 Bečej Serbia
| | - Filip Šibul
- Department of Chemistry, Biochemistry and Environmental protection; Faculty of Sciences; Trg D. Obradovića 3 21000 Novi Sad Serbia
| | - Marko Kebert
- Institute of Lowland Forestry and Environmental Protection; Antona Čehova 13 21000 Novi Sad Serbia
| | - Aleksandra Novaković
- Institute for Food Technology (FINS); Bulevar cara Lazara 1 21000 Novi Sad Serbia
| | - Mira Popović
- Department of Chemistry, Biochemistry and Environmental protection; Faculty of Sciences; Trg D. Obradovića 3 21000 Novi Sad Serbia
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Glumac M, Pejin B, Karaman M, Mojović M, Matavulj M. Lignicolous fungi hydrodistilled extracts may represent a promising source of natural phenolics. Nat Prod Res 2016; 31:104-107. [DOI: 10.1080/14786419.2016.1212036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Miodrag Glumac
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Boris Pejin
- Department of Life Sciences, University of Belgrade, Institute for Multidisciplinary Research – IMSI, Belgrade, Serbia
| | - Maja Karaman
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Miloš Mojović
- Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia
| | - Milan Matavulj
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
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Novakovic A, Karaman M, Kaisarevic S, Belovic M, Radusin T, Beribaka M, Ilic N. Coprinellus disseminatus (Pers.) J.E. Lange 1938: In vitro antioxidant and antiproliferative effects. Food & Feed Res 2016. [DOI: 10.5937/ffr1602093n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Vraneš M, Tot A, Jovanović-Šanta S, Karaman M, Dožić S, Tešanović K, Kojić V, Gadžurić S. Toxicity reduction of imidazolium-based ionic liquids by the oxygenation of the alkyl substituent. RSC Adv 2016. [DOI: 10.1039/c6ra16182k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Five different salicylate based ionic liquids were prepared in order to study their toxicity. Aquatic organisms (A. salina) and a human non-tumor cell line (normal fetal lung fibroblasts, MRC-5) were used for that purpose.
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Affiliation(s)
- M. Vraneš
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
| | - A. Tot
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
| | - S. Jovanović-Šanta
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
| | - M. Karaman
- University of Novi Sad
- Faculty of Sciences
- Department of Biology and Ecology
- 21000 Novi Sad
- Serbia
| | - S. Dožić
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
| | - K. Tešanović
- University of Novi Sad
- Faculty of Sciences
- Department of Biology and Ecology
- 21000 Novi Sad
- Serbia
| | - V. Kojić
- Institute of Oncology Sremska Kamenica
- 21204 Sremska Kamenica
- Serbia
| | - S. Gadžurić
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
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Weinrebe W, Johannsdottir E, Karaman M, Füsgen I. What does delirium cost? An economic evaluation of hyperactive delirium. Z Gerontol Geriatr 2016; 49:52-8. [PMID: 25801513 PMCID: PMC4715123 DOI: 10.1007/s00391-015-0871-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [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: 01/03/2015] [Revised: 01/30/2015] [Accepted: 02/11/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND Demographic changes have resulted in an increase in the number of older (> 75 years) multimorbid patients in clinics. In addition to the primary acute diagnoses that lead to hospitalization, this group of patients often has cognitive dysfunctions, such as delirium. According to clinical experience, delirium patients are more time-consuming for clinicians and their function is often poor. The costs caused by delirium patients are currently unknown. In the present study, a retrospective examination of a database was carried out to calculate the costs that arise during the clinical treatment of documented delirium patients. SETTING AND METHODS The purpose of this retrospective analysis was to collect information recorded by nursing personnel trained in the treatment of delirium and information from a manual documentation matrix for additional time expenditure. In the database analysis anonymous data of previously discharged patients for a time window of 3 months were analyzed. Documented additional expenditure for patients with hyperactive delirium at hospitalization were analyzed by personnel. Material costs, the duration of hospitalization by main diagnosis and age clusters during hospitalization until discharge were also examined. The analysis was performed in a hospital with internal wards. RESULTS Data for 82 hyperactive delirium patients were examined and an average of approximately 240 min of additional personnel expenditure for these patients was found. These patients were approximately 10 years older (p < 0.01) and were hospitalized for an average of 4.2 days longer (p < 0.01) than non-delirium patients. Hyperactive delirium usually developed within the first 5 days of hospitalization and lasted 1.6 days on average. Patients for whom hyperactive delirium was detected early were hospitalized for significantly less time than those for whom it was detected late (6.85 versus 13.61 days, p = 0.002). Additionally, calculated personnel and material costs, including costs affecting the hospitalization period, amounted to approximately 1200 € per hyperactive delirium patient. This corresponds to approximately 0.3 CMP (casemix points) per patient. CONCLUSION The calculations of personnel and material costs and duration of hospitalization in patients with hyperactive delirium demonstrated significant additional costs. Early routine detection of delirium can be achieved through training and this approach leads to a shortening of the hospitalization period and lower costs.
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Affiliation(s)
- W Weinrebe
- Innere Medizin, Hohenloher Krankenhaus gGmbH, Krankenhaus Künzelsau, Universität Witten-Herdecke, Am Sonnenrain 28, 74909, Meckesheim, Deutschland.
| | - E Johannsdottir
- Innere Medizin, Hohenloher Krankenhaus gGmbH, Krankenhaus Künzelsau, Universität Witten-Herdecke, Am Sonnenrain 28, 74909, Meckesheim, Deutschland
| | - M Karaman
- Institut für Biomathematik Berlin, Berlin, Deutschland
| | - I Füsgen
- Geriatrische Medizin, Marien Hospital Bottrop, Universität Witten-Herdecke, Herdecke, Deutschland
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Bogavac M, Karaman M, Janjušević L, Sudji J, Radovanović B, Novaković Z, Simeunović J, Božin B. Alternative treatment of vaginal infections – in vitro antimicrobial and toxic effects of Coriandrum sativum L. and Thymus vulgaris L. essential oils. J Appl Microbiol 2015; 119:697-710. [PMID: 26109513 DOI: 10.1111/jam.12883] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 05/23/2015] [Accepted: 06/09/2015] [Indexed: 11/28/2022]
Abstract
AIMS The aims of study were to examine the antibacterial potential of two commercial essential oils (EOs) from coriander (Coriandrum sativum L.) and thyme (Thymus vulgaris L.) against vaginal clinical strains of bacteria and yeast and their chemical composition. METHODS AND RESULTS Antimicrobial activities of commercial essential oils were determined using macro-diffusion (disc, well) and micro-dilution method in 96-well micro plates against twelve clinical strains of bacteria: Escherichia coli, Proteus mirabilis, Staphylococcus aureus and Enterococcus sp., Staph. aureus ATCC 25923, ATCC 6538 and E. coli 25922 and two clinical Candida albicans strains, including ATTC 10231. Spectrophotometric method was used for determination on C. albicans growth. An antimicrobial effect of EOs was strain specific. Bactericidal activity was higher for coriander EO (minimal inhibitory concentration (MICs) 0·4-45·4 μl ml(-1)) against almost all tested bacteria, except multiple resistant strains of Eneterococcus sp. and Proteus sp. Thyme EO showed slightly better fungicidal activity reaching MIC at 0·11 mg ml(-1) for all C. albicans strains. The effect of EOs on biofilm-forming ability was tested for two strains of Staph. aureus and E. coli, as well as on C. albicans filamentation ability. Brine shrimp lethality bioassay revealed thymus oil total toxicity and coriander oil intoxicity (LC50 = 2·25 mg ml(-1)). The chemical composition of oils was analysed by gas chromatography mass spectrometry showing oxygenated monoterepenes as dominant constituents. CONCLUSIONS The results provide in-vitro scientific support for the safety possible use of Coriander EO against E. coli, Staph. aureus and C. albicans vaginal infections in alternative gynaecological treatment. SIGNIFICANCE AND IMPACT OF STUDY To examine EOs as possible constituent of naturally based antimicrobial agents in vaginaletes for safety gynaecological application.
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Affiliation(s)
- M Bogavac
- Department of Obstetrics and Gynecology, Faculty of Medicine, Clinical Centre of Vojvodina, University of Novi Sad, Novi Sad, Serbia
| | - M Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Lj Janjušević
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - J Sudji
- Institute of Occupational Health Novi Sad, Novi Sad, Serbia
| | - B Radovanović
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | | | - J Simeunović
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - B Božin
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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Novakovic A, Karaman M, Matavulj M, Pejin B, Belovic M, Radusin T, Ilic N. An insight into in vitro bioactivity of wild-growing puffball species Lycoperdon perlatum (Pers) 1796. Food & Feed Res 2015. [DOI: 10.5937/ffr1501051n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Rakić M, Karaman M, Forkapić S, Hansman J, Kebert M, Bikit K, Mrdja D. Radionuclides in some edible and medicinal macrofungal species from Tara Mountain, Serbia. Environ Sci Pollut Res Int 2014; 21:11283-92. [PMID: 24801292 DOI: 10.1007/s11356-014-2967-8] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 04/21/2014] [Indexed: 05/08/2023]
Abstract
Edible and medicinal macrofungi used in human diet represent not only important sources of nutritive elements but toxic substances as well (heavy metals and radionuclides). Radioactivity levels of four radionuclides ((40)K, (137)Cs, (226)Ra, (228)Ra) were determined in the basidiomata (fruiting bodies of a Basidiomycetes) of six lignicolous (Fomitopsis pinicola, Ganoderma applanatum, Hericium clathroides, Megacollybia platyphylla, Pluteus cervinus, Trametes gibbosa) and three mycorrhizal (Boletus luridus, Boletus sp. 1, Boletus sp. 2) species as well as their soil (wood) substrates by gamma spectrometry (high-resolution high-purity germanium (HPGe) detector). The aim was to investigate their ability for radionuclide absorption according to transfer factors (from soil and wood), to predict potential bioindicator species as well as species with potential risk for human use. Samples were taken during years 2011 and 2012, at two sites in forest ecosystem of Tara Mountain (Serbia). Observed concentration ranges per dry weight were as follows: 29-3,020 Bq/kg ((40)K), 21.9-735 Bq/kg ((137)Cs), 3-39 Bq/kg ((226)Ra), and 2.0-18 Bq/kg ((228)Ra). Obtained results indicate that the type of basidiome (fleshy/tough), most likely due to a different metabolic rate, has a very important role in radionuclide accumulation. The highest activity concentrations of all analyzed radionuclides were found in species with fleshy basidiomata--P. cervinus, H. clathroides, M. platyphylla, and Boletus species. A species-specific influence on radionuclide uptake was more prominent comparing to habitat differences and the role of fungal trophic mode. No significant variations were observed regarding radionuclide activity among the same fungal species from different sampling sites.
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Affiliation(s)
- Milana Rakić
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia,
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Dinc M, Aydin E, Balta S, Demirkol S, Karaman M. Subclinical inflammation and cardiovascular risk in psoriasis. J Intern Med 2014; 276:195. [PMID: 24372585 DOI: 10.1111/joim.12185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M Dinc
- Department of Internal Medicine, Beytepe Military Hospital, Ankara, Turkey
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Uca Avci ZD, Karaman M, Ozelkan E, Kumral M, Budakoglu M. OBIA based hierarchical image classification for industrial lake water. Sci Total Environ 2014; 487:565-573. [PMID: 24813772 DOI: 10.1016/j.scitotenv.2014.04.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/09/2014] [Accepted: 04/13/2014] [Indexed: 06/03/2023]
Abstract
Water management is very important in water mining regions for the sustainability of the natural environment and for industrial activities. This study focused on Acigol Lake, which is an important wetland for sodium sulphate (Na2SO4) production, a significant natural protection area and habitat for local bird species and endemic species of this saline environment, and a stopover for migrating flamingos. By a hierarchical classification method, ponds representing the industrial part were classified according to in-situ measured Baumé values, and lake water representing the natural part was classified according to in-situ measurements of water depth. The latter is directly related to the water level, which should not exceed a critical level determined by the regulatory authorities. The resulting data, produced at an accuracy of around 80%, illustrates the status in two main regions for a single date. The output of the analysis may be meaningful for firms and environmental researchers, and authorizations can provide a good perspective for decision making for sustainable resource management in the region which has uncommon and specific ecological characteristics.
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Affiliation(s)
- Z D Uca Avci
- Department of Astronautical Engineering, Faculty of Aeronautics and Astronautics, Istanbul Technical University, Istanbul, Turkey.
| | - M Karaman
- Geochemistry Research Group and JAL Laboratories, Department of Geological Engineering, Faculty of Mines, Istanbul Technical University, Istanbul, Turkey.
| | - E Ozelkan
- Agricultural and Environmental Informatics Research Center, Istanbul Technical University, Istanbul, Turkey.
| | - M Kumral
- Geochemistry Research Group and JAL Laboratories, Department of Geological Engineering, Faculty of Mines, Istanbul Technical University, Istanbul, Turkey.
| | - M Budakoglu
- Geochemistry Research Group and JAL Laboratories, Department of Geological Engineering, Faculty of Mines, Istanbul Technical University, Istanbul, Turkey.
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