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Guz L, Puk K, Szwajgier D, Pastuszka A. Combined antimicrobial action of streptomycin and terpenes against atypical mycobacteria isolated from fish. Pol J Vet Sci 2024; 27:135-138. [PMID: 38511650 DOI: 10.24425/pjvs.2024.149334] [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] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
The aim of this study was to investigate the antimycobacterial activity of 39 free terpenes and their activity in combination with streptomycin. Antimicrobial activity was first evaluated by screening 39 free terpenes at concentrations from 1.56 to 400 μg/mL. None of these exhibited positive effects against any of the nontuberculous mycobacteria (NTM) strains tested. However, six of the 39 terpenes (isoeugenol, nerol, (+)-α-terpineol, (1R)-(-)-myrtenol, (+)-terpinen-4-ol, and eugenol) were shown to enhance the activity of streptomycin against the NTM strains isolated from diseased ornamental fish.
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Affiliation(s)
- L Guz
- Department of Biology and Fish Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-033 Lublin, Poland
| | - K Puk
- Department of Biology and Fish Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-033 Lublin, Poland
| | - D Szwajgier
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland
| | - A Pastuszka
- Department of Biology and Fish Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-033 Lublin, Poland
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Baranowska-Wójcik E, Szwajgier D, Gustaw K, Jośko I, Pawlikowska-Pawlęga B, Kapral-Piotrowska J. Reduced bioaccessibility of TiO 2 (E 171) during puree soup digestion in a gastrointestinal tract simulated in vitro. Food Res Int 2023; 164:112189. [PMID: 36737890 DOI: 10.1016/j.foodres.2022.112189] [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: 05/31/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
E171 (TiO2- Ttitanium dioxide), a food colourant containing nano fractions, is one of the additives used e.g. in the food industry, whose consumption may have a negative impact on human health. In order to determine the ability of food products and intestinal lactic acid bacteria to interact with TiO2, we conducted in vitro "digestions" of a food matrix (meat/vegetable puree soup) using an advanced in vitro model of the "gastrointestinal tract". The "bioaccessibility" of TiO2 was simulated using microfiltration (0.2 µm) of the post-digestive fluid. We observed changes in the content of TiO2 in the microfiltrates obtained at various stages of the in vitro digestions, dependent on the stage of the process. This result suggests that TiO2 interacts with food components and bacterial cells. Furthermore, scanning electron microscopy revealed visible morphological changes to bacterial cells in the presence of TiO2.
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Affiliation(s)
- E Baranowska-Wójcik
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences, Skromna Street 8, 20-704 Lublin, Poland.
| | - D Szwajgier
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences, Skromna Street 8, 20-704 Lublin, Poland
| | - K Gustaw
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences, Skromna Street 8, 20-704 Lublin, Poland
| | - I Jośko
- Institute of Plant Genetics, Breeding and Biotechnology, Faculty of Agrobioengineering, University of Life Sciences, Lublin, Poland
| | - B Pawlikowska-Pawlęga
- Department of Functional Anatomy and Cytobiology, Faculty of Biology and Biotechnology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - J Kapral-Piotrowska
- Department of Functional Anatomy and Cytobiology, Faculty of Biology and Biotechnology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
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Borowiec K, Matysek M, Szwajgier D, Biała G, Kruk-Słomka M, Szalak R, Ziętek J, Arciszewski MB, Targoński Z. The influence of bilberry fruit on memory and the expression of parvalbumin in the rat hippocampus. Pol J Vet Sci 2020; 22:481-487. [PMID: 31560462 DOI: 10.24425/pjvs.2019.129973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Therefore, the aim of the present study was to evaluate the possible effect of bilberry fruit (Vaccinium myrtillus L.) supplement in a daily diet on the cognitive behaviour of the rats and the expression of paravalbumin (PV) in populations of hippocampal neurons. It has been postulated that the antioxidants present in bilberry fruit may act as neuroprotective factors playing also a significant role as memory enhancements. Forty Wistar rats with a similar average body weight (460 ± 0.4 g) were divided into four groups (n=10 per group). The control group received standard feed (210 g/week), whereas animals of experimental groups received standard feed supplemented with bilberry (per os) at consumed doses of 2 g (group I), 5 g (group II), and 10 g/kg b.w./ /day (group III). After three months of feeding with bilberry, the modified elevated plus-maze test (mEPM) was performed. After 32 weeks of feeding, brains were collected and PV-immunoreactive (ir) neurons were immunohistochemically visualized. In the modified elevated plus-maze test, transfer latency examined 2 h and 24 h after the acquisition session was significantly shorter (p⟨0.05) in the group II in comparison with the control group. In CA1 and CA2/CA3 hippocampal fields as well as dentate gyrus of all experimental groups, a significant (p⟨0.05) decrease in number of PV-ir neurons were found. In relation to the control group, the mean subpopulation of PV-ir neurons found in groups II and III were significantly reduced. The subpopulations of PV-ir neurons found in DG of all experimental groups were significantly reduced in comparison to the control. In conclusion the in the present paper we demonstrated a relationship between the diet rich in a bilberry fruit and process of memory as well as numbers of calcium- binding protein-expressing hippocampal neurons. Our results may be source of basic knowledge for further research aiming at neuroprotective role of the bilberry fruit.
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Affiliation(s)
- K Borowiec
- Department of Biotechnology, Microbiology and Human Nutrition, Faculty of Food Science and Biotechnology, University of Life Sciences, Lublin, Poland
| | - M Matysek
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Lublin, Poland
| | - D Szwajgier
- Department of Biotechnology, Microbiology and Human Nutrition, Faculty of Food Science and Biotechnology, University of Life Sciences, Lublin, Poland
| | - G Biała
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Lublin, Poland
| | - M Kruk-Słomka
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Lublin, Poland
| | - R Szalak
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Lublin, Poland
| | - J Ziętek
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences, Lublin, Poland
| | - M B Arciszewski
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Lublin, Poland
| | - Z Targoński
- Department of Biotechnology, Microbiology and Human Nutrition, Faculty of Food Science and Biotechnology, University of Life Sciences, Lublin, Poland
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Stój A, Szwajgier D, Baranowska-Wójcik E, Domagała D. Gentisic Acid, Salicylic Acid, Total Phenolic Content and Cholinesterase Inhibitory Activities of Red Wines Made from Various Grape Varieties. S AFR J ENOL VITIC 2018. [DOI: 10.21548/40-1-2885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Szwajgier D, Gustaw W. The effect of the addition of selected phenolic acids on the rheological properties of heated solutions of whey proteins. Acta Alimentaria 2015. [DOI: 10.1556/aalim.2014.0004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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