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Večurkovská I, Mašlanková J, Tomečková V, Kaťuchová J, Kisková T, Fröhlichová L, Mareková M, Stupák M. Stage-Dependent Levels of Brain-Derived Neurotrophic Factor and Matrix Metalloproteinase 9 in the Prognosis of Colorectal Cancer. Biomedicines 2023; 11:1839. [PMID: 37509480 PMCID: PMC10377127 DOI: 10.3390/biomedicines11071839] [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: 05/19/2023] [Revised: 06/19/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
PURPOSE The development of sensitive and non-invasive biomarkers for the early detection of CRC and determination of their role in the individual stages of CRC. METHODS MMP-9 expression in serum and tissue, and BDNF expression in plasma were detected using the ELISA method. MMP-9 and BDNF in the tissue were also determined by immunohistochemical staining. RESULTS To assess the balance between changes in survival and tumor progression, we compared BDNF/MMP-9 ratios in tissues of living and deceased individuals. The tissue BDNF/MMP-9 ratio (evaluated immunohistochemically) decreased significantly with the progression of the disease in living patients. The BDNF/MMP-9 ratio was statistically significantly reduced in stages II and III compared to the benign group. However, in deceased individuals, the ratio showed an opposite tendency. CONCLUSION The determination of the tissue BDNF/MMP9 ratio can be used as a prognostic biomarker of CRC.
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Affiliation(s)
- Ivana Večurkovská
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Jana Mašlanková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Jana Kaťuchová
- 1st Department of Surgery, Faculty of Medicine, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Terézia Kisková
- Department of Animal Physiology, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Lucia Fröhlichová
- Department of Pathology, Louis Pasteur University Hospital, Rastislavova 43, 041 90 Košice, Slovakia
| | - Mária Mareková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Marek Stupák
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafarik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
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Tomečková V, Tkáčiková S, Talian I, Fabriciová G, Hovan A, Kondrakhova D, Zakutanská K, Skirková M, Komanický V, Tomašovičová N. Experimental Analysis of Tear Fluid and Its Processing for the Diagnosis of Multiple Sclerosis. Sensors (Basel) 2023; 23:s23115251. [PMID: 37299978 DOI: 10.3390/s23115251] [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] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
A pilot analysis of the tear fluid of patients with multiple sclerosis (MS) collected by glass microcapillary was performed using various experimental methods: liquid chromatography-mass spectrometry, Raman spectroscopy, infrared spectroscopy, and atomic-force microscopy. Infrared spectroscopy found no significant difference between the tear fluid of MS patients and the control spectra; all three significant peaks were located at around the same positions. Raman analysis showed differences between the spectra of the tear fluid of MS patients and the spectra of healthy subjects, which indicated a decrease in tryptophan and phenylalanine content and changes in the relative contributions of the secondary structures of the polypeptide chains of tear proteins. Atomic-force microscopy exhibited a surface fern-shaped dendrite morphology of the tear fluid of patients with MS, with less roughness on both oriented silicon (100) and glass substrates compared to the tear fluid of control subjects. The results of liquid chromatography-mass spectrometry showed downregulation of glycosphingolipid metabolism, sphingolipid metabolism, and lipid metabolism. Proteomic analysis identified upregulated proteins in the tear fluid of patients with MS such as cystatine, phospholipid transfer protein, transcobalamin-1, immunoglobulin lambda variable 1-47, lactoperoxidase, and ferroptosis suppressor protein 1; and downregulated proteins such as haptoglobin, prosaposin, cytoskeletal keratin type I pre-mRNA-processing factor 17, neutrophil gelatinase-associated lipocalin, and phospholipase A2. This study showed that the tear proteome in patients with MS is modified and can reflect inflammation. Tear fluid is not a commonly used biological material in clinico-biochemical laboratories. Experimental proteomics has the potential to become a promising contemporary tool for personalized medicine, and it might be applied in clinical practice by providing a detailed analysis of the tear-fluid proteomic profile of patients with MS.
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Affiliation(s)
- Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Soňa Tkáčiková
- Department of Medical and Clinical Biophysics, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Ivan Talian
- Department of Medical and Clinical Biophysics, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Gabriela Fabriciová
- Department of Biophysics, Institute of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia
| | - Andrej Hovan
- Department of Biophysics, Institute of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia
| | - Daria Kondrakhova
- Department of Condensed Matter Physics, Institute of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 041 54 Košice, Slovakia
| | - Katarína Zakutanská
- Department of Magnetism, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
| | - Miriama Skirková
- Department of Opthalmology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia
| | - Vladimír Komanický
- Department of Condensed Matter Physics, Institute of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 041 54 Košice, Slovakia
| | - Natália Tomašovičová
- Department of Magnetism, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
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Čižmárová B, Hubková B, Tomečková V, Birková A. Flavonoids as Promising Natural Compounds in the Prevention and Treatment of Selected Skin Diseases. Int J Mol Sci 2023; 24:ijms24076324. [PMID: 37047297 PMCID: PMC10094312 DOI: 10.3390/ijms24076324] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/22/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023] Open
Abstract
Phytochemicals represent a large and diverse group of naturally occurring compounds, bioactive nutrients, or phytonutrients produced by plants, widely found in fruits, vegetables, whole grains products, legumes, beans, herbs, seeds, nuts, tea, and dark chocolate. They are classified according to their chemical structures and functional properties. Flavonoids belong to the phenolic class of phytochemicals with potential solid pharmacological effects as modulators of multiple signal transduction pathways. Their beneficial effect on the human body is associated with their antioxidant, anti-inflammatory, antimutagenic, and anticarcinogenic properties. Flavonoids are also widely used in various nutritional, pharmaceutical, medical, and cosmetic applications. In our review, we discuss the positive effect of flavonoids on chronic skin diseases such as vitiligo, psoriasis, acne, and atopic dermatitis.
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Krajčíková K, Semančíková E, Zakutanská K, Kondrakhova D, Mašlanková J, Stupák M, Talian I, Tomašovičová N, Kimáková T, Komanický V, Dubayová K, Breznoščáková D, Pálová E, Semančík J, Tomečková V. Tear fluid biomarkers in major depressive disorder: Potential of spectral methods in biomarker discovery. J Psychiatr Res 2021; 138:75-82. [PMID: 33836432 DOI: 10.1016/j.jpsychires.2021.03.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 12/22/2022]
Abstract
Spectroscopic methods represent a group of analytical methods that demonstrate high potential in providing clinically relevant diagnostic information, such as biochemical, functional or structural changes of macromolecular complexes that might occur due to pathological processes or therapeutic intervention. Although application of these methods in the field of psychiatric research is still relatively recent, the preliminary results show that they have the capacity to detect subtle neurobiological abnormalities in major depressive disorder (MDD). Methods of mass spectrometry (MALDI-TOF MS), zymography, synchronous fluorescence spectroscopy (SFS), circular dichroism (CD) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy and atomic force microscopy (AFM) were used to analyze the human tear fluid of subjects with MDD. Using MALDI-TOF MS, two diagnostically significant peaks (3747 and 16 411 m/z) were identified with an AUC value of 0.89 and 0.92 in tear fluid of subjects with MDD vs controls, respectively. We also identified various forms of matrix metalloproteinase 9 in subjects with MDD using zymography and synchronous fluorescence spectra (SFS) showed a significant increase in fluorescence intensity at 280 nm. CD spectra were redshifted in tear fluid of subjects with MDD vs healthy controls. FTIR spectroscopy showed changes in the positions of peaks for amide A, I, II in tear fluid of subjects with MDD vs controls. Moreover, atomic force microscopy (AFM) showed different pattern in the crystal structures of tear fluid components in subjects with MDD. SFS, CD, FTIR spectroscopy, AFM and MALDI-TOF MS confirmed, that the human tear fluid proteome could be helpful in discriminating between the group of subjects with MDD and healthy controls. These preliminary findings suggest that spectral methods could represent a useful tool in clinical psychiatry, especially in establishing differential diagnosis, monitoring illness progression and the effect of psychiatric treatment.
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Affiliation(s)
- Kristína Krajčíková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Erika Semančíková
- 2(nd) Department of Psychiatry, L. Pasteur University Hospital, Rastislavova 43, Košice, 040 11, Slovakia; EPAMED s.r.o., Private Psychiatric Practice, Hlavná 68, Košice, 040 01, Slovakia.
| | - Katarína Zakutanská
- Institute of Experimental Physics, Department of Magnetism, Slovak Academy of Sciences, Watsonova 47, Košice, 040 01, Slovakia
| | - Daria Kondrakhova
- Institute of Physics, Department of Condensed Matter Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, Košice, 041 54, Slovakia
| | - Jana Mašlanková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Marek Stupák
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Ivan Talian
- Department of Medical and Clinical Biophysics, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Natália Tomašovičová
- Institute of Experimental Physics, Department of Magnetism, Slovak Academy of Sciences, Watsonova 47, Košice, 040 01, Slovakia
| | - Tatiana Kimáková
- Department of Public Health and Hygiene, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Šrobárová 2, 041 80, Košice, Slovakia
| | - Vladimír Komanický
- Institute of Physics, Department of Condensed Matter Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, Košice, 041 54, Slovakia
| | - Katarína Dubayová
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Dagmar Breznoščáková
- 1(st) Department of Psychiatry, L. Pasteur University Hospital, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Eva Pálová
- EPAMED s.r.o., Private Psychiatric Practice, Hlavná 68, Košice, 040 01, Slovakia; 1(st) Department of Psychiatry, L. Pasteur University Hospital, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Juraj Semančík
- 4(th) Clinic of Internal Medicine, L. Pasteur University Hospital, Trieda SNP 1, Košice, 040 11, Slovakia
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, Košice, 040 11, Slovakia
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Krajčíková K, Skirková M, Moravská M, Birková A, Tomečková V. Native fluorescence of tear fluid as a tool for diagnostics of glaucoma. RSC Adv 2021; 11:10842-10846. [PMID: 35423590 PMCID: PMC8695866 DOI: 10.1039/d1ra00473e] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/07/2021] [Indexed: 12/25/2022] Open
Abstract
Glaucoma is one of the leading causes of irreversible vision loss worldwide. There is an enormous need for the detection of its early stages and also speeding up and simplifying regular examinations. Among the new diagnostic approaches, the use of tear fluid has been intensively investigated in recent years. For this purpose, we analyzed the tear fluid of patients with glaucoma and related diseases. To sensitively capture the subtle ocular abnormalities related to glaucoma and manifested in tear fluid, we used synchronous fluorescence spectroscopy. In this observational case-control study, we detected significant differences in the intensity of tear fluid fluorescence located at λ ex/Δλ = 280/70 nm between the groups of primary open-angle glaucoma (p < 0.01), suspected glaucoma (p < 0.0001), and ocular hypertension (p < 0.05), when compared to the healthy control group. The signal was not significantly higher in women than in men (p = 0.05), and no correlation was found with age (r = -0.05, p > 0.05), nor treatment (p > 0.05). Taken together, tear fluid fluorescence could serve as a discriminative parameter between patients with glaucoma, related diseases, and healthy control subjects and might contribute to the improvement of diagnostics of these diseases.
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Affiliation(s)
- Kristína Krajčíková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice Trieda SNP 1 Košice 040 11 Slovakia
| | - Miriama Skirková
- Department of Ophthalmology, University Hospital Louis Pasteur, Pavol Jozef Šafárik University in Košice Trieda SNP 1 Košice 040 11 Slovakia
| | - Monika Moravská
- Department of Ophthalmology, University Hospital Louis Pasteur, Pavol Jozef Šafárik University in Košice Trieda SNP 1 Košice 040 11 Slovakia
| | - Anna Birková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice Trieda SNP 1 Košice 040 11 Slovakia
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice Trieda SNP 1 Košice 040 11 Slovakia
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Favero G, Moretti E, Krajčíková K, Tomečková V, Rezzani R. Evidence of Polyphenols Efficacy against Dry Eye Disease. Antioxidants (Basel) 2021; 10:antiox10020190. [PMID: 33525721 PMCID: PMC7911148 DOI: 10.3390/antiox10020190] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/25/2021] [Accepted: 01/25/2021] [Indexed: 12/15/2022] Open
Abstract
Dry eye disease is a multifactorial pathology compromising the quality of life of patients, resulting in significant damage of the ocular surface and discomfort. The current therapeutical strategies are not able to definitively resolve the underlying causes and stop the symptoms. Polyphenols are promising natural molecules that are receiving increasing attention for their activity/effects in counteracting the main pathologic mechanisms of dry eye disease and reducing its symptoms. In the present review, a deep literature search focusing on the main polyphenols tested against dry eye disease was conducted, analyzing related in vitro, in vivo, and clinical studies to provide a comprehensive and current review on the state of the art. Polyphenols present multiple effects against dry eye diseases-related ocular surface injury. In particular, the observed beneficial effects of polyphenols on corneal cells are the reduction of the pathological processes of inflammation, oxidative stress, and apoptosis and modulation of the tear film. Due to numerous studies reporting that polyphenols are effective and safe for treating the pathological mechanisms of this ocular surface disease, we believe that future studies should confirm and extend the evidence of polyphenols efficacy in clinical practice against dry eye disease and help to develop new ophthalmic drug(s).
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Affiliation(s)
- Gaia Favero
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (G.F.); (E.M.)
| | - Enrico Moretti
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (G.F.); (E.M.)
| | - Kristína Krajčíková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University, 040 12 Košice, Slovakia; (K.K.); (V.T.)
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University, 040 12 Košice, Slovakia; (K.K.); (V.T.)
| | - Rita Rezzani
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (G.F.); (E.M.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy
- Correspondence:
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Krajčíková K, Suváková M, Glinská G, Ohlasová J, Tomečková V. Stability of natural polyphenol fisetin in eye drops Stability of fisetin in eye drops. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0029] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractFisetin is a polyphenolic compound with anti-inflammatory and antioxidant properties. Inflammation and reactive oxygen species play a major role in the pathophysiology of the dry eye syndrome (DES). Patients with DES undergo symptomatic treatment using eye drops known as artificial tears. Addition of fisetin into the eye drops could result in a better recovery of the eye surface. This experimental study examines the stability of fisetin in selected eye drops (Arufil, Hypromelóza-P, Ocutein, Refresh). Absorption spectra of fisetin were measured in selected eye drops, dimethylsulphoxide (DMSO), deionized water and normal saline solution (NSS) during a period of four weeks. The fisetin absorption maximum was placed at 350 – 390 nm depending on the solvent. Good stability of fisetin solutions were observed in DMSO and deionized water. The highest stability of fisetin in selected eye drops was observed in Hypromelóza-P. Irreversible fisetin structural changes were detected in Arufil, Ocutein, Refresh and NSS. For further clinical evaluation, fisetin solution in Hypromelóza-P could be examined.
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Affiliation(s)
- Kristína Krajčíková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, 04011, Slovakia
| | - Mária Suváková
- Department of Biochemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Košice, 04154, Slovakia
| | - Gabriela Glinská
- Ophthalmology Clinic, PROOKO, spol. s.r.o., Košice, 04001, Slovakia
| | - Jana Ohlasová
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, 04011, Slovakia
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, 04011, Slovakia
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Široká M, Franco C, Guľašová Z, Hertelyová Z, Tomečková V, Rodella LF, Rezzani R. Nuclear factor-kB and nitric oxide synthases in red blood cells: good or bad in obesity? A preliminary study. Eur J Histochem 2020; 64. [PMID: 31988533 PMCID: PMC7003140 DOI: 10.4081/ejh.2020.3081] [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: 11/10/2019] [Accepted: 01/07/2020] [Indexed: 12/24/2022] Open
Abstract
Emerging evidence suggests that red blood cells (RBCs) are involved in many functions essential for life. Nuclear factor-kB (NF-kB), nitric oxide synthases (inducible nitric oxide synthase -iNOS-, endothelial nitric oxide synthase -eNOS-) and interleukin-1β (-IL-1β-) are all proteins that have been identified in RBCs. In nucleated cells, such as white blood cells (WBCs), these proteins have well investigated roles, linked to stress and inflammation. It is not the same in erythrocytes, for this reason, we considered obese patients for studying the morphology of RBCs. We studied a possible correlation between their morphological changes and several protein expressions. Moreover, we compared the results about the aforementioned proteins and antioxidant markers with those obtained in WBCs from healthy and obese patients before and after omega-3 polyunsaturated fatty acid supplementation. This latter scientific point is important in order to determine whether there are differences in the expression of nucleated and anucleated cells. The morphology of RBCs changed in obese patients, but it is significantly restored after six weeks of supplementation. The expression of antioxidant enzymes changed in RBCs and WBCs in obesity but all proteins restore their positivity after supplementation. We found that: the presence of NF-kB, antioxidant enzymes and eNOS in healthy RBCs could indicate a role of these proteins as regulators of cellular metabolism; obese WBCs showed a higher NF-kB, iNOS and IL-1β positivity, whereas eNOS presence did not significantly change in these cells. We tried to explain the different positivity of NF-kB, proposing a dual role for this protein, as prolifespan and as proinflammatory processes, depending on examined cells. In conclusion, we have considered the literature that focuses on the omega-6/omega-3 ratio. The ratio changed from the past, especially in people whose diet is strongly westernized worsening the state of health of the patient and leading to an higher incidence of obesity. Our study hypothesizes that the supplementation could help to restore the correct ratio.
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Affiliation(s)
- Monika Široká
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, P.J. Šafárik University, Košice.
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Guľašová Z, Guerreiro SG, Link R, Soares R, Tomečková V. Tackling endothelium remodeling in cardiovascular disease. J Cell Biochem 2019; 121:938-945. [DOI: 10.1002/jcb.29379] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/15/2019] [Indexed: 01/19/2023]
Affiliation(s)
- Zuzana Guľašová
- Department of Experimental Medicine, Faculty of Medicine University of Pavol Jozef Šafárik in Košice Košice Slovakia
| | - Susana G. Guerreiro
- Departamento de Biomedicina, Unidade de Bioquímica, Faculty of Medicine University of Porto Porto Portugal
- I3S, Instituto de Investigação e Inovação em Saúde University of Porto Porto Portugal
- Faculdade de Ciências da Nutrição e Alimentação University of Porto Porto Portugal
| | - Rene Link
- Department of Experimental Medicine, Faculty of Medicine University of Pavol Jozef Šafárik in Košice Košice Slovakia
| | - Raquel Soares
- Departamento de Biomedicina, Unidade de Bioquímica, Faculty of Medicine University of Porto Porto Portugal
- I3S, Instituto de Investigação e Inovação em Saúde University of Porto Porto Portugal
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine University of Pavol Jozef Šafárik in Košice Košice Slovakia
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Glinská G, Krajčíková K, Zakutanská K, Shylenko O, Kondrakhova D, Tomašovičová N, Komanický V, Mašlanková J, Tomečková V. Noninvasive diagnostic methods for diabetes mellitus from tear fluid. RSC Adv 2019; 9:18050-18059. [PMID: 35520589 PMCID: PMC9064664 DOI: 10.1039/c9ra02078k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 03/18/2019] [Accepted: 05/08/2019] [Indexed: 12/03/2022] Open
Abstract
Diabetes mellitus and prolonged hyperglycemia can cause diabetic retinopathy. Diabetic retinopathy arises from damage to retinal vessels and, in its final stages, causes blindness. The early stages are often asymptomatic and although regular screening of diabetic patients is recommended, the beginning of diabetic retinopathy is insufficiently detected. The diagnostic potential of fluorescence spectroscopy, infrared spectroscopy and atomic force microscopy as the untraditional methods for diabetes mellitus was investigated using tear fluid. In our pilot study the structural changes of tear fluid of patients with diabetes mellitus after insulin and oral antidiabetic drug treatment was compared with healthy subjects. The results of analysis, infrared spectroscopy and atomic force microscopy confirmed structural changes in tear fluid of patients in comparison with the tear fluid of healthy subjects. Using new experimental laboratory methods in future could contribute to an improvement in diagnosis of diabetes mellitus and other selected ocular diseases using tear fluid. In our pilot study we assessed the diagnostic potential of FS, IRS and AFM for diabetes mellitus using tear fluid.![]()
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Affiliation(s)
- Gabriela Glinská
- Department of Medical and Clinical Biochemistry
- Faculty of Medicine
- Pavol Jozef Šafárik University in Košice
- 040 11 Košice
- Slovakia
| | - Kristína Krajčíková
- Department of Medical and Clinical Biochemistry
- Faculty of Medicine
- Pavol Jozef Šafárik University in Košice
- 040 11 Košice
- Slovakia
| | | | - Oleg Shylenko
- Department of Condensed Matter Physics
- Institute of Physics
- Faculty of Science
- Pavol Jozef Šafárik University in Košice
- 041 54 Košice
| | - Daria Kondrakhova
- Department of Condensed Matter Physics
- Institute of Physics
- Faculty of Science
- Pavol Jozef Šafárik University in Košice
- 041 54 Košice
| | | | - Vladimír Komanický
- Department of Condensed Matter Physics
- Institute of Physics
- Faculty of Science
- Pavol Jozef Šafárik University in Košice
- 041 54 Košice
| | - Jana Mašlanková
- Department of Medical and Clinical Biochemistry
- Faculty of Medicine
- Pavol Jozef Šafárik University in Košice
- 040 11 Košice
- Slovakia
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry
- Faculty of Medicine
- Pavol Jozef Šafárik University in Košice
- 040 11 Košice
- Slovakia
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Mašlanková J, Tóth Š, Tomečková V, Tóth T, Katz M, Veselá J, Hertelyová Z, Schnitzer M, Živčák J, Mareková M. Metabolites of Tryptophane and Phenylalanine as Markers of Small Bowel Ischemia-Reperfusion Injury. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0076] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Ischemic-reperfusion injury of the small intestine is an acute clinical condition with high mortality rate. This study describes the changes in levels of phenylalanine and tryptophan metabolites in intestinal homogenates and urine samples of Wistar male rats after 60 minutes of mesenteric ischemia and different reperfusion periods (1, 24, 30 hours) in comparison with a control group without the ischemia. The ischemic-reperfusion injury was quantified by the histopathological injury index. The levels of serotonin, epinephrine, and norepinephrine were determined in the intestinal homogenate and epinephrine, vanillylmandelic acid, and the 5-hydroxyindoleacetic acid was analyzed in urine using the HPLC method. The statistically significant increased level of serotonin, epinephrine and norepinephrine were detected in the intestinal samples after 24 hours of reperfusion (p<0.01); even the most elevated serotonin level was observed after one hour of reperfusion (p<0.001). A statistically significant decreased level of vanillylmandelic acid was observed after one hour of reperfusion, but it significantly increased after 24 hours (p<0.05) in urine. The elevated level of the 5-hydroxyindoleacetic acid after one hour and 24 hours after reperfusion (p<0.05) were determined in the urine. The most significant elevated epinephrine level was observed after 24 hours of reperfusion (p<0.001) in urine. Results showed a potential role of serotonin as an early biomarker (after one hour of reperfusion) of small intestinal damaged homogenate, while the best predictor of intestinal injury in urine was epinephrine, which was elevated after 24 hours.
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Affiliation(s)
- Jana Mašlanková
- Department of Medical and Clinical Biochemistry and LABMED , Faculty of Medicine , Pavol Jozef Šafárik University , Trieda SNP 1, 04011 Košice , Slovakia
| | - Štefan Tóth
- 1 Department of Internal Medicine , Pavol Jozef Safarik University and Louis Pasteur University Hospital , Trieda SNP 1, 041 90 Košice , Slovakia
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry , Faculty of Medicine , Pavol Jozef Šafárik University , Trieda SNP 1, 041 90 Košice , Slovakia
| | - Tímea Tóth
- 1 Department of Internal Medicine , Pavol Jozef Safarik University and Louis Pasteur University Hospital , Trieda SNP 1, 041 90 Košice , Slovakia
| | - Matan Katz
- Department of Medical and Clinical Biochemistry and LABMED , Faculty of Medicine , Pavol Jozef Šafárik University , Trieda SNP 1, 04011 Košice , Slovakia
| | - Jarmila Veselá
- Department of Histology and Embryology , Faculty of Medicine , Pavol Jozef Šafárik University , Šrobárová 2, 04180 Košice , Slovakia
| | - Zdenka Hertelyová
- 1st Department of Experimental Medicine , Faculty of Medicine , Pavol Jozef Safarik University , Trieda SNP 1, 041 90 Košice , Slovakia
| | - Marek Schnitzer
- Department of biomedical engineering and measurements , Faculty of mechanical engineering , Technical university of Kosice , Letna 9 , Kosice 04200 , Slovakia
| | - Jozef Živčák
- Department of biomedical engineering and measurements , Faculty of mechanical engineering , Technical university of Kosice , Letna 9 , Kosice 04200 , Slovakia
| | - Mária Mareková
- Department of Medical and Clinical Biochemistry and LABMED , Faculty of Medicine , Pavol Jozef Šafárik University , Trieda SNP 1, 04011 Košice , Slovakia
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Tomečková V, Tóth Š, Tóth T, Komanický V, Krajčíková K, Široká M, Glinská G, Pella D, Mašlanková J, Tomečko M, Hakim T, Štefanič P. Analysis of Bowel Diseases from Blood Serum by Autofluorescence and Atomic Force Microscopy Techniques. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0024] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractDiagnosis of bowel diseases is often difficult and time consuming since it is not always possible to obtain adequate information by the conventional diagnostic methods to set up a diagnosis and exclude nongastrointestinal causes of symptoms. The aim of this study was to investigate the structure of blood serum samples of patients with selected intestinal diseases. The blood serum samples of patients (N=35) with selected diagnoses (mesenteric thrombosis, inflammatory bowel disease, duodenal ulcers, sepsis, enterorrhagia, sigmoid colon resection, small intestine cancer) and of healthy subjects were evaluated by synchronous fluorescence fingerprint and atomic force microscopy. Autofluorescence of blood serum studied at λex = 280 nm showed significant decrease of fluorescence intensity in patients with all types of diseases affecting bowels in comparison with the healthy control patients. The blood serum surface of ill patients showed significant differences in comparison with control group samples after atomic force microscopy evaluation as well. Irregularly placed small globular units of irregular shape in small amounts are possible to observe in patients with intestine ischemia. Fluorescence analysis and atomic force microscopy showed the ability to rapidly reflect qualitative and quantitative changes of proteins in blood serum samples of patients. These sensitive methods could be beneficial for monitoring the progression of both acute or chronic bowel diseases.
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Affiliation(s)
- Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Štefan Tóth
- 1st Department of Internal Medicine, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Tímea Tóth
- 1st Department of Internal Medicine, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Vladimír Komanický
- Institute of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Kristína Krajčíková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Monika Široká
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Gabriela Glinská
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Dominik Pella
- Department of Cardiology, East Slovak Institute of Cardiovascular Disease in Košice, Košice, Slovak Republic
| | - Jana Mašlanková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Marián Tomečko
- Department of Vascular Surgery, East Slovak Institute of Cardiovascular Disease in Košice, Košice, Slovak Republic
| | - Tamer Hakim
- 1st Department of Internal Medicine, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Peter Štefanič
- Department of Vascular Surgery, East Slovak Institute of Cardiovascular Disease in Košice, Košice, Slovak Republic
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Glinská G, Krajčíková K, Tomečková V. Diagnostic potential of tears in ophthalmology. Cesk Slov Oftalmol 2017; 73:101-108. [PMID: 29394076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In research circles, there is an increasing need to seek and identify new methods in the diagnosis of pathologies, monitoring the progression of the disease and response to treatment. The sensitivity of detection technologies has improved markedly, and enables the quantification of analyses in very small quantities. Tears represent a biological material with ever increasingly developing possibilities in the diagnosis of various pathologies. Our objective was to compile a basic overview of the diagnostic potential of tears via a summary of the potential lachrymal biomarkers of various pathologies. The article contains descriptions of protein biomarkers studied particularly in recent years, which correlate with a certain ocular pathology (dry eye, allergy, glaucoma etc.). It also summarises the results published to date in the field of systemic pathologies in patients with scleroderma, cystic fibrosis, diabetes mellitus, multiple sclerosis, cancers and Parkinson's disease. It concentrates on proteomic analyses, with the aim of improving the effectiveness of markers which could be used in future also in the timely diagnosis of ocular pathologies in clinical practice.Key words: Tears, proteins, biomarker, ocular pathologies, systemic pathologies.
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Mojžišová G, Kello M, Pilátová M, Tomečková V, Vašková J, Vaško L, Bernátová S, Mirossay L, Mojžiš J. Antiproliferative effect of β-escin - an in vitro study. Acta Biochim Pol 2016; 63:79-87. [PMID: 26824290 DOI: 10.18388/abp.2015_1013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 11/05/2015] [Accepted: 11/24/2015] [Indexed: 11/10/2022]
Abstract
This study examined the antiproliferative effects of β-escin (E) in cancer cells. The study showed that E inhibited cancer cells growth in a dose-dependent manner. The flow cytometric analysis revealed an escin-induced increase in the sub-G1 DNA content, which is considered to be a marker of apoptosis. Apoptosis was also confirmed by annexin V staining and DNA fragmentation assay. These effects were associated with increased generation of reactive oxygen species (ROS), caspase-3 activation and decreased mitochondrial membrane potential (MMP). Moreover, escin decreased mitochondrial protein content and mitochondrial fluorescence intensity as well as caused depletion of glutathione (GSH). However, activity of glutathione peroxidase (GPx) and glutathione reductase (GR) was not significantly changed in escin-treated cells. In conclusion, our results demonstrated that E has apoptotic effects in human cancer cells through the mechanisms involving mitochondrial perturbation. Although the exact mechanism needs to be investigated further, it can be concluded that E may be a useful candidate agent for cancer treatment.
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Affiliation(s)
- Gabriela Mojžišová
- Department of Experimental Medicine, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Martin Kello
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Martina Pilátová
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Vladimíra Tomečková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Janka Vašková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Ladislav Vaško
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Silvia Bernátová
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Ladislav Mirossay
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
| | - Ján Mojžiš
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovak Republic
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Tomečková V, Komanický V, Kakoush M, Krajčíková K, Glinská G, Široká M, Pundová L, Samuely T, Hložná D, Lotnyk D. Monitoring of Heart Ischemia in Blood Serum. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/sar.2016.42002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Tóth Š, Pekárová T, Varga J, Tóth Š, Tomečková V, Gál P, Veselá J, Guzy J. Intravenous administration of tetramethylpyrazine reduces intestinal ischemia-reperfusion injury in rats. Am J Chin Med 2013; 41:817-29. [PMID: 23895154 DOI: 10.1142/s0192415x13500559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Intestinal ischemia-reperfusion injury (IIRI) is a life-threatening condition requiring prompt medical intervention. Tetramethylpyrazine (TMP) is a biologically active alkaloid isolated from Ligusticum wallichii. Previously, it was shown that TMP causes vasodilatation and inhibition of platelet aggregation as well as exhibits significant antioxidant effects. Therefore, the aim of the present study was to evaluate possible therapeutic effects of TMP in the prevention of IIRI. Wistar rats (n = 80) were randomly divided into eight experimental groups and subjected to a 1 h occlusion of cranial mesenteric artery followed by 0, 1, 12, and 24 h period of reperfusion. Thirty minutes before the IIRI animals received either TMP (30 mg/kg, i.v.) or identical volume of saline. In addition, a control group of 10 animals was not exposed to IIRI. Intestine morphology was evaluated by using histopathological injury index examination (HII), goblet and Paneth cells quantification as well as by applying immunofluorescent methods such as InSitu TUNEL and caspase-3 positivity assessment. Here we showed that preconditioning with TMP prior IIRI decreases the grade of injury. Significant reduction of HII was detected in TMP pretreated groups after 0, 1, and 12 h of reperfusion where injury reduction up to 75% was found. Lower histopathological damage in preconditioned groups was accompanied with increased number of secretory epithelial cells and decreased number of apoptotic cells. These results demonstrate the protective effect of TMP on the small intestine mucosa, suggesting administration of TMP as a molecule for pharmacological intervention against IIRI.
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Affiliation(s)
- Štefan Tóth
- Department of Histology and Embryology, Faculty of Medicine, Pavol Jozef Šafárik University, Slovakia.
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Tóth S, Pekárová T, Varga J, Tomečková V, Tóth S, Lakyová L, Veselá J. Trehalase as a possible marker of intestinal ischemia--reperfusion injury. Acta Biochim Pol 2013. [DOI: 10.18388/abp.2013_2001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Different pathological affections of the small intestine cause corresponding morphological and functional changes. The present study was aimed to assess intestinal trehalase activities during ischemia and following reperfusion, correlate them with the pathological changes and determine whether trehalase could be used as a biochemical marker of the intestinal ischemia, ischemia - reperfusion injury.
Wistar rats, randomly divided into 5 experimental groups (IR) (each n=15), were subjected to one hour mesenteric ischemia followed by 0, 1, 4, 12 and 24 hours of reperfusion. As a control group sham operated animals were used (n=15). The activity of trehalase was determined using an adapted Dahlqwist method. The range of intestinal injury was determined using histological (histopathological injury index and goblet cell quantification) and immunohistochemical (Ki67, InSitu TUNEL) methods.
The highest activities of trehalase were recorded in the control group (C=4.42 ± 0.373 μmol/mg/h). The most altered intestinal histology detected in group IR1 was accompanied by the lowest trehalase activity (IR1=0.97 ± 0.209 μmol/mg/h; p < 0.001 C vs. IR1). Improved histological structure in the remaining reperfusion periods correlated with increase in trehalase activity. Almost normal mucosal histological architecture and 72% of the enzymatic activity were restored after 24 hours of reperfusion (IR24=3.20 ± 0.266 μmol/mg/h; p < 0.01 IR1 vs. IR24).
The correlation between intestinal histology and trehalase activities during intestinal injury has been shown. Trehalase activity is closely associated with the status of the histological architecture of the small intestine.
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Tóth S, Pekárová T, Varga J, Tomečková V, Tóth S, Lakyová L, Veselá J. Trehalase as a possible marker of intestinal ischemia--reperfusion injury. Acta Biochim Pol 2013; 60:411-416. [PMID: 24051441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 09/06/2013] [Accepted: 09/13/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Different pathological affections of the small intestine cause corresponding morphological and functional changes. The present study was aimed to assess intestinal trehalase activities during ischemia and following reperfusion, correlate them with the pathological changes and determine whether trehalase could be used as a biochemical marker of the intestinal ischemia, ischemia - reperfusion injury. MATERIAL AND METHODS Wistar rats, randomly divided into 5 experimental groups (IR) (each n=15), were subjected to one hour mesenteric ischemia followed by 0, 1, 4, 12 and 24 hours of reperfusion. As a control group sham operated animals were used (n=15). The activity of trehalase was determined using an adapted Dahlqwist method. The range of intestinal injury was determined using histological (histopathological injury index and goblet cell quantification) and immunohistochemical (Ki67, InSitu TUNEL) methods. RESULTS The highest activities of trehalase were recorded in the control group (C=4.42 ± 0.373 μmol/mg/h). The most altered intestinal histology detected in group IR1 was accompanied by the lowest trehalase activity (IR1=0.97 ± 0.209 μmol/mg/h; p < 0.001 C vs. IR1). Improved histological structure in the remaining reperfusion periods correlated with increase in trehalase activity. Almost normal mucosal histological architecture and 72% of the enzymatic activity were restored after 24 hours of reperfusion (IR24=3.20 ± 0.266 μmol/mg/h; p < 0.01 IR1 vs. IR24). CONCLUSION The correlation between intestinal histology and trehalase activities during intestinal injury has been shown. Trehalase activity is closely associated with the status of the histological architecture of the small intestine.
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Affiliation(s)
- Stefan Tóth
- Department of Medical and Clinical Biochemistry and LABMED, and Department of Histology and Embryology, Faculty of Medicine, Pavol Jozef Šafárik University, Košice, Slovakia
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Varga J, Tóth Š, Tóth Š, Tomečková V, Gregová K, Veselá J. The relationship between morphology and disaccharidase activity in ischemia- reperfusion injured intestine. Acta Biochim Pol 2012. [DOI: 10.18388/abp.2012_2103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Questions regarding functional markers characterizing injured intestines remain unanswered. Brush border disaccharidases are crucial for the functioning of the intestines.
The study was designed to assess changes in disaccharidase activity (DA) following intestinal injury and to compare them with morphological changes.
Wistar rats, randomly divided into six experimental groups (each n = 6), were subjected to different ischemic/reperfusion injury. One-hour mesenteric ischemia followed by reperfusion for 0, 1, 2, 4, 12 or 24 hours was induced. As a control group sham-operated animals were used (n = 6). Intestine morphology was evaluated using histopathological injury index (HII) and goblet cell (GC) detection. DA (sucrase and maltase) was studied in mucosal scrape or in entire intestinal wall samples.
Moderate morphological damage (HII, GC) after mesenteric ischemia was detected. Deepening of the injury was found during reperfusion with a maximum after two hours. Improved morphology with longer reperfusion confirmed reversible damage with almost normal mucosal structure after 24 hours of reperfusion. Similar pattern was observed when DA was measured. The lowest activity was detected after 2 hours of reperfusion followed by increasing activity in the subsequent reperfusion periods. Physiological values after 24 hours of reperfusion were seen only in samples of entire intestinal wall.
Significant changes in intestinal DA were observed after intestinal ischemia/reperfusion injury. A similar pattern was seen for morphological characteristics. Although based on microscopic survey the intestine seems to be fairly regenerated, some functional limitation is expected to persist.
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Štefanišinová M, Tomečková V, Kožurková M, Ostró A, Mareková M. Study of DNA interactions with cyclic chalcone derivatives by spectroscopic techniques. Spectrochim Acta A Mol Biomol Spectrosc 2011; 81:666-671. [PMID: 21778103 DOI: 10.1016/j.saa.2011.06.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 06/21/2011] [Accepted: 06/26/2011] [Indexed: 05/31/2023]
Abstract
A series of chalcone derivatives (1-4) were studied. The interaction between these ligands and calf thymus DNA was studied with UV-vis spectrophotometry, fluorescence and circular dichroism spectroscopy. The binding constants K were estimated at 0.5-4.6×10(5) M(-1). All these measurements indicated that the compounds behave as effective DNA-intercalating agents. Electrophoretic separation proved that ligands inhibited topoisomerase I at a concentration of 60 μM.
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Affiliation(s)
- M Štefanišinová
- Department of Medical Chemistry, Biochemistry and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Safarik University in Košice, Trieda SNP 1, Košice 040 66, Slovak Republic.
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Lakyová L, Toporcer T, Tomečková V, Sabo J, Radoňak J. Low-level laser therapy for protection against skeletal muscle damage after ischemia-reperfusion injury in rat hindlimbs. Lasers Surg Med 2010; 42:665-72. [DOI: 10.1002/lsm.20967] [Citation(s) in RCA: 18] [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: 11/10/2022]
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