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Tóth E, Fagyas M, Nagy B, Siket IM, Szőke B, Mártha L, Mahdi M, Erdősi G, Pólik Z, Kappelmayer J, Papp Z, Borbély A, Szabó T, Balla J, Balla G, Bácsi A, Szekanecz Z, Bai P, Tóth A. Distinct subsets of anti-pulmonary autoantibodies correlate with disease severity and survival in severe COVID-19 patients. GeroScience 2024; 46:1561-1574. [PMID: 37656328 PMCID: PMC10828368 DOI: 10.1007/s11357-023-00887-2] [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: 04/25/2023] [Accepted: 07/24/2023] [Indexed: 09/02/2023] Open
Abstract
Autoantibodies targeting the lung tissue were identified in severe COVID-19 patients in this retrospective study. Fifty-three percent of 104 patients developed anti-pulmonary antibodies, the majority of which were IgM class, suggesting that they developed upon infection with SARS-CoV-2. Anti-pulmonary antibodies correlated with worse pulmonary function and a higher risk of multiorgan failure that was further aggravated if 3 or more autoantibody clones were simultaneously present (multi-producers). Multi-producer patients were older than the patients with less or no autoantibodies. One of the identified autoantibodies (targeting a pulmonary protein of ~ 50 kDa) associated with worse clinical outcomes, including mortality. In summary, severe COVID-19 is associated with the development of lung-specific autoantibodies, which may worsen the clinical outcome. Tissue proteome-wide tests, such as the ones applied here, can be used to detect autoimmunity in the post-COVID state to identify the cause of symptoms and to reveal a new target for treatment.
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Affiliation(s)
- Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Miklós Fagyas
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ivetta Mányiné Siket
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Blanka Szőke
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Lilla Mártha
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Mohamed Mahdi
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gábor Erdősi
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsófia Pólik
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - János Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Papp
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Budapest, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary
| | - Attila Borbély
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tamás Szabó
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - József Balla
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Budapest, Hungary
- Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - György Balla
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Budapest, Hungary
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Bácsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Szekanecz
- Department of Rheumatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary.
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary.
- MTA-DE Cell Biology and Signaling Research Group ELKH, Debrecen, 4032, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, 4032, Debrecen, Hungary.
| | - Attila Tóth
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Budapest, Hungary.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary.
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Ébert A, Gál E, Tóth E, Szögi T, Hegyi P, Venglovecz V. Role of CFTR in diabetes-induced pancreatic ductal fluid and HCO 3 - secretion. J Physiol 2024; 602:1065-1083. [PMID: 38389307 DOI: 10.1113/jp285702] [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: 09/20/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Type 1 diabetes is a disease of the endocrine pancreas; however, it also affects exocrine function. Although most studies have examined the effects of diabetes on acinar cells, much less is known regarding ductal cells, despite their important protective function in the pancreas. Therefore, we investigated the effect of diabetes on ductal function. Diabetes was induced in wild-type and cystic fibrosis transmembrane conductance regulator (CFTR) knockout mice following an i.p. administration of streptozotocin. Pancreatic ductal fluid and HCO3 - secretion were determined using fluid secretion measurements and fluorescence microscopy, respectively. The expression of ion transporters was measured by real-time PCR and immunohistochemistry. Transmission electron microscopy was used for the morphological characterization of the pancreas. Serum secretin and cholecystokinin levels were measured by an enzyme-linked immunosorbent assay. Ductal fluid and HCO3 - secretion, CFTR activity, and the expression of CFTR, Na+ /H+ exchanger-1, anoctamine-1 and aquaporin-1 were significantly elevated in diabetic mice. Acute or chronic glucose treatment did not affect HCO3 - secretion, but increased alkalizing transporter activity. Inhibition of CFTR significantly reduced HCO3 - secretion in both normal and diabetic mice. Serum levels of secretin and cholecystokinin were unchanged, but the expression of secretin receptors significantly increased in diabetic mice. Diabetes increases fluid and HCO3 - secretion in pancreatic ductal cells, which is associated with the increased function of ion and water transporters, particularly CFTR. KEY POINTS: There is a lively interaction between the exocrine and endocrine pancreas not only under physiological conditions, but also under pathophysiological conditions The most common disease affecting the endocrine part is type-1 diabetes mellitus (T1DM), which is often associated with pancreatic exocrine insufficiency Compared with acinar cells, there is considerably less information regarding the effect of diabetes on pancreatic ductal epithelial cells, despite the fact that the large amount of fluid and HCO3 - produced by ductal cells is essential for maintaining normal pancreatic functions Ductal fluid and HCO3 - secretion increase in T1DM, in which increased cystic fibrosis transmembrane conductance regulator activation plays a central role. We have identified a novel interaction between T1DM and ductal cells. Presumably, the increased ductal secretion represents a defence mechanism in the prevention of diabetes, but further studies are needed to clarify this issue.
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Affiliation(s)
- Attila Ébert
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
- ELI ALPS, ELI-HU Non-Proft Ltd, Szeged, Hungary
| | - Eleonóra Gál
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Emese Tóth
- Translational Pancreatology Research Group, Interdisciplinary Center of Excellence for Research Development and Innovation, University of Szeged, Szeged, Hungary
- Department of Health Sciences, Department of Theoretical and Integrative Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Titanilla Szögi
- Department of Pathology, University of Szeged, Szeged, Hungary
| | - Péter Hegyi
- Translational Pancreatology Research Group, Interdisciplinary Center of Excellence for Research Development and Innovation, University of Szeged, Szeged, Hungary
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Division of Pancreatic Diseases, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Viktória Venglovecz
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
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Jankó L, Tóth E, Laczik M, Rauch B, Janka E, Bálint BL, Bai P. PARP2 poly(ADP-ribosyl)ates nuclear factor erythroid 2-related factor 2 (NRF2) affecting NRF2 subcellular localization. Sci Rep 2023; 13:7869. [PMID: 37188809 DOI: 10.1038/s41598-023-35076-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023] Open
Abstract
PARP2 is a member of the PARP enzyme family. Although, PARP2 plays role in DNA repair, it has regulatory roles in mitochondrial and lipid metabolism, it has pivotal role in bringing about the adverse effects of pharmacological PARP inhibitors. Previously, we showed that the ablation of PARP2 induces oxidative stress and, consequently, mitochondrial fragmentation. In attempt to identify the source of the reactive species we assessed the possible role of a central regulator of cellular antioxidant defense, nuclear factor erythroid 2-related factor 2 (NRF2). The silencing of PARP2 did not alter either the mRNA or the protein expression of NRF2, but changed its subcellular localization, decreasing the proportion of nuclear, active fraction of NRF2. Pharmacological inhibition of PARP2 partially restored the normal localization pattern of NRF2 and in line with that, we showed that NRF2 is PARylated that is absent in the cells in which PARP2 was silenced. Apparently, the PARylation of NRF2 by PARP2 has pivotal role in regulating the subcellular (nuclear) localization of NRF2. The silencing of PARP2 rearranged the expression of genes encoding proteins with antioxidant function, among these a subset of NRF2-dependent genes.
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Affiliation(s)
- Laura Jankó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Miklós Laczik
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Boglárka Rauch
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Bálint L Bálint
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- Department of Bioinformatics, Semmelweis University, Tűzoltó Utca 7-9., Budapest, 1094, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary.
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary.
- MTA-DE Cell Biology and Signaling Research Group ELKH, Debrecen, Hungary.
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Tóth E, Bánhelyi B, Fekete O, Csete M. Metamaterial properties of Babinet complementary complex structures. Sci Rep 2023; 13:4701. [PMID: 36949209 PMCID: PMC10033689 DOI: 10.1038/s41598-023-31685-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/15/2023] [Indexed: 03/24/2023] Open
Abstract
Single and multiple layers of sub-wavelength periodic Babinet complementary patterns composed of rounded nano-object miniarrays were investigated. In case of illumination with linearly and circularly polarized light the azimuthal orientation and handedness (in)dependence of (cross-polarized) copolarized transmitted signal components was proven for all types of patterns. Considerable (weak) asymmetric transmission was demonstrated in extended bands exclusively for both types of copolarized (cross-polarized) signals transmitted through single layer of convex miniarrays. Three-dimensional structures constructed with convex-concave-convex complex pattern-layers resulted in a negative index at the visible region boundary both for linearly and circularly polarized light illuminations. This is because dipolar modes on the convex nano-objects are synchronized with co-existent reversal dipoles on the concave nano-objects via interlayer coupling. Although during linearly polarized light illumination, the interlayer interaction decouples the localized and propagating modes excitable on the concave pattern in the 90° azimuthal orientation, the synchronization via tilted-rotating nanoring dipoles is almost perfect in the 0° azimuthal orientation. For circularly polarized light illumination, both the dispersion maps and the negative index phenomena synthesize the characteristics of the two orthogonal linearly polarized light illuminations. Important aspect is the appearance of a small/intermediate (large) time-averaged amplitude magnetic dipole due to the tilted (twisted) electric dipole on the concave nanoring, which less/more quickly turns (continuously rotates) with large/intermediate (small) out-of-plane tilting, when illumination is realized with linearly polarized light in the 90°/0° azimuthal orientation (with circularly polarized light). The location of the negative index can be predicted based on the copolarized transmittance signals computed for circularly polarized light illumination by using the linear base representation of Jones transmission matrix elements.
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Affiliation(s)
- Emese Tóth
- Department of Optics and Quantum Electronics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Balázs Bánhelyi
- Department of Computational Optimization, University of Szeged, Árpád tér 2, Szeged, 6720, Hungary
| | - Olivér Fekete
- Department of Optics and Quantum Electronics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Mária Csete
- Department of Optics and Quantum Electronics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary.
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Kacsir I, Sipos A, Kiss T, Major E, Bajusz N, Tóth E, Buglyó P, Somsák L, Kardos G, Bai P, Bokor É. Half sandwich-type osmium, ruthenium, iridium and rhodium complexes with bidentate glycosyl heterocyclic ligands induce cytostasis in platinum-resistant ovarian cancer cells and bacteriostasis in Gram-positive multiresistant bacteria. Front Chem 2023; 11:1086267. [PMID: 36793764 PMCID: PMC9923724 DOI: 10.3389/fchem.2023.1086267] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/05/2023] [Indexed: 01/31/2023] Open
Abstract
The toxicity of and resistance to platinum complexes as cisplatin, oxaliplatin or carboplatin calls for the replacement of these therapeutic agents in clinical settings. We have previously identified a set of half sandwich-type osmium, ruthenium and iridium complexes with bidentate glycosyl heterocyclic ligands exerting specific cytostatic activity on cancer cells but not on non-transformed primary cells. The apolar nature of the complexes, conferred by large, apolar benzoyl protective groups on the hydroxyl groups of the carbohydrate moiety, was the main molecular feature to induce cytostasis. We exchanged the benzoyl protective groups to straight chain alkanoyl groups with varying length (3 to 7 carbon units) that increased the IC50 value as compared to the benzoyl-protected complexes and rendered the complexes toxic. These results suggest a need for aromatic groups in the molecule. The pyridine moiety of the bidentate ligand was exchanged for a quinoline group to enlarge the apolar surface of the molecule. This modification decreased the IC50 value of the complexes. The complexes containing [(η6-p-cymene)Ru(II)], [(η6-p-cymene)Os(II)] or [(η5-Cp*)Ir(III)] were biologically active unlike the complex containing [(η5-Cp*)Rh(III)]. The complexes with cytostatic activity were active on ovarian cancer (A2780, ID8), pancreatic adenocarcinoma (Capan2), sarcoma (Saos) and lymphoma cell lines (L428), but not on primary dermal fibroblasts and their activity was dependent on reactive oxygen species production. Importantly, these complexes were cytostatic on cisplatin-resistant A2780 ovarian cancer cells with similar IC50 values as on cisplatin-sensitive A2780 cells. In addition, the quinoline-containing Ru and Os complexes and the short chain alkanoyl-modified complexes (C3 and C4) proved to be bacteriostatic in multiresistant Gram-positive Enterococcus and Staphylococcus aureus isolates. Hereby, we identified a set of complexes with submicromolar to low micromolar inhibitory constants against a wide range of cancer cells, including platinum resistant cells and against multiresistant Gram-positive bacteria.
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Affiliation(s)
- István Kacsir
- Department of Organic Chemistry, University of Debrecen, Debrecen, Hungary,Doctoral School of Chemistry, University of Debrecen, Debrecen, Hungary
| | - Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tímea Kiss
- Department of Organic Chemistry, University of Debrecen, Debrecen, Hungary
| | - Evelin Major
- Department of Metagenomics, University of Debrecen, Debrecen, Hungary
| | - Nikolett Bajusz
- Department of Metagenomics, University of Debrecen, Debrecen, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry, Faculty of Sciences and Technology, University of Debrecen, Debrecen, Hungary
| | - László Somsák
- Department of Organic Chemistry, University of Debrecen, Debrecen, Hungary
| | - Gábor Kardos
- Department of Metagenomics, University of Debrecen, Debrecen, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary,NKFIH-DE Lendület Laboratory of Cellular Metabolism, Debrecen, Hungary,Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary,MTA-DE Cell Biology and Signaling Research Group ELKH, Debrecen, Hungary,*Correspondence: Péter Bai, ; Éva Bokor,
| | - Éva Bokor
- Department of Organic Chemistry, University of Debrecen, Debrecen, Hungary,*Correspondence: Péter Bai, ; Éva Bokor,
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Bonyár A, Szalóki M, Borók A, Rigó I, Kámán J, Zangana S, Veres M, Rácz P, Aladi M, Kedves MÁ, Szokol Á, Petrik P, Fogarassy Z, Molnár K, Csete M, Szenes A, Tóth E, Vas D, Papp I, Galbács G, Csernai LP, Biró TS, Kroó N, Collaboration NAPLIFE. The Effect of Femtosecond Laser Irradiation and Plasmon Field on the Degree of Conversion of a UDMA-TEGDMA Copolymer Nanocomposite Doped with Gold Nanorods. Int J Mol Sci 2022; 23:ijms232113575. [PMID: 36362358 PMCID: PMC9657072 DOI: 10.3390/ijms232113575] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
Abstract
In this work, the effects of femtosecond laser irradiation and doping with plasmonic gold nanorods on the degree of conversion (DC) of a urethane dimethacrylate (UDMA)–triethylene glycol dimethacrylate (TEGDMA) nanocomposite were investigated. The UDMA-TEGDMA photopolymer was prepared in a 3:1 weight ratio and doped with dodecanethiol- (DDT) capped gold nanorods of 25 × 75 or 25 × 85 nm nominal diameter and length. It was found that the presence of the gold nanorods alone (without direct plasmonic excitation) can increase the DC of the photopolymer by 6–15%. This increase was found to be similar to what could be achieved with a control heat treatment of 30 min at 180 °C. It was also shown that femtosecond laser impulses (795 nm, 5 mJ pulse energy, 50 fs pulse length, 2.83 Jcm−2 fluence), applied after the photopolymerization under a standard dental curing lamp, can cause a 2–7% increase in the DC of undoped samples, even after thermal pre-treatment. The best DC values (12–15% increase) were obtained with combined nanorod doping and subsequent laser irradiation close to the plasmon resonance peak of the nanorods (760–800 nm), which proves that the excited plasmon field can directly facilitate double bond breakage (without thermoplasmonic effects due to the short pulse length) and increase the crosslink density independently from the initial photopolymerization process.
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Affiliation(s)
- Attila Bonyár
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University for Economics and Informatics, 1111 Budapest, Hungary
- Correspondence: ; Tel.: +36-(1)-4632758
| | - Melinda Szalóki
- Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary
| | - Alexandra Borók
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University for Economics and Informatics, 1111 Budapest, Hungary
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - István Rigó
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Judit Kámán
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Shereen Zangana
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University for Economics and Informatics, 1111 Budapest, Hungary
| | - Miklós Veres
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Péter Rácz
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Márk Aladi
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | | | - Ágnes Szokol
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Péter Petrik
- Centre for Energy Research, Institute of Technical Physics and Materials Science (MFA), 1121 Budapest, Hungary
| | - Zsolt Fogarassy
- Centre for Energy Research, Institute of Technical Physics and Materials Science (MFA), 1121 Budapest, Hungary
| | - Kolos Molnár
- Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Mária Csete
- Department of Optics and Quantum Electronics, University of Szeged, 6720 Szeged, Hungary
| | - András Szenes
- Department of Optics and Quantum Electronics, University of Szeged, 6720 Szeged, Hungary
| | - Emese Tóth
- Department of Optics and Quantum Electronics, University of Szeged, 6720 Szeged, Hungary
| | - Dávid Vas
- Department of Optics and Quantum Electronics, University of Szeged, 6720 Szeged, Hungary
| | - István Papp
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Gábor Galbács
- Department of Inorganic and Analytical Chemistry, University of Szeged, 6720 Szeged, Hungary
| | - László P. Csernai
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
- Department of Physics and Technology, University of Bergen, 5007 Bergen, Norway
- Frankfurt Institute for Advanced Studies, 60438 Frankfurt/Main, Germany
| | - Tamás S. Biró
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
| | - Norbert Kroó
- Wigner Research Centre for Physics, 1525 Budapest, Hungary
- Hungarian Academy of Sciences, 1051 Budapest, Hungary
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Pataki E, Darwish D, Tóth E, Tisza J, Cselkó Z, Bogos K. ‘Facing a problem? Don’t reach for the
stick!’ mobile application designed to help
quit smoking. Tob Prev Cessat 2022. [DOI: 10.18332/tpc/150904] [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: 11/24/2022]
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Pataki E, Tóth E, Darwish D, Cselkó Z, Bogos K. 5 years' experience of the Quitline in Hungary: Where do we go next? Tob Prev Cessat 2021. [DOI: 10.18332/tpc/143657] [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: 11/24/2022]
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Tóth E, Toumi M, Farkas R, Takáts K, Somodi C, Ács É. Insight into the hidden bacterial diversity of Lake Balaton, Hungary. Biol Futur 2021; 71:383-391. [PMID: 34554460 DOI: 10.1007/s42977-020-00040-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/17/2020] [Indexed: 11/26/2022]
Abstract
In the present study, the prokaryotic community structure of the water of Lake Balaton was investigated at the littoral region of three different points (Tihany, Balatonmáriafürdő and Keszthely) by cultivation independent methods [next-generation sequencing (NGS), specific PCRs and microscopy cell counting] to check the hidden microbial diversity of the lake. The taxon-specific PCRs did not show pathogenic bacteria but at Keszthely and Máriafürdő sites extended spectrum beta-lactamase-producing microorganisms could be detected. The bacterial as well as archaeal diversity of the water was high even when many taxa are still uncultivable. Based on NGS, the bacterial communities were dominated by Proteobacteria, Bacteroidetes and Actinobacteria, while the most frequent Archaea belonged to Woesearchaeia (Nanoarchaeota). The ratio of the detected taxa differed among the samples. Three different types of phototrophic groups appeared: Cyanobacteria (oxygenic phototrophic organisms), Chloroflexi (anaerobic, organotrophic bacteria) and the aerobic, anoxic photoheterotrophic group (AAPs). Members of Firmicutes appeared only with low abundance, and Enterobacteriales (order within Proteobacteria) were present also only in low numbers in all samples.
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Affiliation(s)
- E Tóth
- Department of Microbiology, Eötvös Loránd University, Budapest, Hungary.
| | - M Toumi
- Department of Microbiology, Eötvös Loránd University, Budapest, Hungary
| | - R Farkas
- Department of Microbiology, Eötvös Loránd University, Budapest, Hungary
| | - K Takáts
- Department of Microbiology, Eötvös Loránd University, Budapest, Hungary
| | - Cs Somodi
- Department of Microbiology, Eötvös Loránd University, Budapest, Hungary
| | - É Ács
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
- National University of Public Service, Faculty of Water Sciences, Baja, Hungary
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Tóth E, Erdődi F, Kiss A. Activation of Myosin Phosphatase by Epigallocatechin-Gallate Sensitizes THP-1 Leukemic Cells to Daunorubicin. Anticancer Agents Med Chem 2021; 21:1092-1098. [PMID: 32679023 DOI: 10.2174/1871520620666200717142315] [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: 04/04/2020] [Revised: 05/21/2020] [Accepted: 05/23/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The Myosin Phosphatase (MP) holoenzyme is composed of a Protein Phosphatase type 1 (PP1) catalytic subunit and a regulatory subunit termed Myosin Phosphatase Target subunit 1 (MYPT1). Besides dephosphorylation of myosin, MP has been implicated in the control of cell proliferation via dephosphorylation and activation of the tumor suppressor gene products, retinoblastoma protein (pRb) and merlin. Inhibition of MP was shown to attenuate the drug-induced cell death of leukemic cells by chemotherapeutic agents, while activation of MP might have a sensitizing effect. OBJECTIVE Recently, Epigallocatechin-Gallate (EGCG), a major component of green tea, was shown to activate MP by inducing the dephosphorylation of MYPT1 at phospho-Thr696 (MYPT1pT696), which might confer enhanced chemosensitivity to cancer cells. METHODS THP-1 leukemic cells were treated with EGCG and Daunorubicin (DNR) and cell viability was analyzed. Phosphorylation of tumor suppressor proteins was detected by Western blotting. RESULTS EGCG or DNR (at sub-lethal doses) alone had moderate effects on cell viability, while the combined treatment caused a significant decrease in the number of viable cells by enhancing apoptosis and decreasing proliferation. EGCG plus DNR decreased the phosphorylation level of MYPT1pT696, which was accompanied by prominent dephosphorylation of pRb. In addition, significant dephosphorylation of merlin was observed when EGCG and DNR were applied together. CONCLUSION Our results suggest that EGCG-induced activation of MP might have a regulatory function in mediating the chemosensitivity of leukemic cells via dephosphorylation of tumor suppressor proteins.
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Affiliation(s)
- Emese Tóth
- Department of Medical Chemistry and MTA-DE Cell Biology and Signalling Research Group, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ferenc Erdődi
- Department of Medical Chemistry and MTA-DE Cell Biology and Signalling Research Group, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Kiss
- Department of Medical Chemistry, University of Debrecen, Debrecen, Hungary
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11
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Tóth E, Erdődi F, Kiss A. Myosin Phosphatase Is Implicated in the Control of THP-1 Monocyte to Macrophage Differentiation. Int J Mol Sci 2021; 22:ijms22052516. [PMID: 33802280 PMCID: PMC7959147 DOI: 10.3390/ijms22052516] [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] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 01/22/2023] Open
Abstract
Monocyte to macrophage differentiation is characterized by the activation of various signal transduction pathways, which may be modulated by protein phosphorylation; however, the impact of protein kinases and phosphatases is not well understood yet. It has been demonstrated that actomyosin rearrangement during macrophage differentiation is dependent on Rho-associated protein kinase (ROCK). Myosin phosphatase (MP) target subunit-1 (MYPT1) is one of the major cellular substrates of ROCK, and MP is often a counter enzyme of ROCK; therefore, MP may also control macrophage differentiation. Changes in MP activity and the effects of MP activation were studied on PMA or l,25(OH)2D3-induced differentiation of monocytic THP-1 cells. During macrophage differentiation, phosphorylation of MYPT1 at Thr696 and Thr853 increased significantly, resulting in inhibition of MP. The ROCK inhibitor H1152 and the MP activator epigallocatechin-3-gallate (EGCG) attenuated MYPT1 phosphorylation and concomitantly decreased the extent of phosphorylation of 20 kDa myosin light chain. H1152 and EGCG pretreatment also suppressed the expression of CD11b and weakened the PMA-induced adherence of the cells. Our results indicate that MP activation/inhibition contributes to the efficacy of monocyte to macrophage differentiation, and this enzyme may be a target for pharmacological interventions in the control of disease states that are affected by excessive macrophage differentiation.
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Affiliation(s)
- Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
- MTA-DE Cell Biology and Signalling Research Group, University of Debrecen, H-4032 Debrecen, Hungary
| | - Ferenc Erdődi
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
- MTA-DE Cell Biology and Signalling Research Group, University of Debrecen, H-4032 Debrecen, Hungary
- Correspondence: (F.E.); (A.K.); Tel.: +36-52-421345 (F.E. & A.K.)
| | - Andrea Kiss
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
- Correspondence: (F.E.); (A.K.); Tel.: +36-52-421345 (F.E. & A.K.)
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12
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Nagy S, Tóth E, Kacsir I, Makai A, Bényei AC, Buglyó P. Effect of the replacement of tripodal 4N donors by two 2N chelators on the redox and cytotoxic activity of maltolato and deferipronato containing Co(III) complexes. J Inorg Biochem 2021; 220:111372. [PMID: 33962134 DOI: 10.1016/j.jinorgbio.2021.111372] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 11/17/2022]
Abstract
Fourteen novel CoIII ternary complexes with the general formula [Co(4N)(2O)]X2 or [Co(2N)2(2O)]X2 where 4N = tris(2-aminoethyl)amine (tren) or tris(2-pyridylmethyl)amine (tpa); 2N = 1,10-phenantroline (phen), 2,2'-bipyridine (bipy), 1,2-diaminoethane (en) or 2-(aminomethyl)pyridine (ampy) and 2O = 1,2-dimethyl-3-hydroxy-4(1H)-pyridinone (dhpH), 3-hydroxy-2-methyl-4-pyrone (maltH) or 2-ethyl-3-hydroxy-4H-pyran-4-one (etmaltH) were synthesized, characterized and their redox features explored. Molecular structure of some selected [Co(2N)2(2O)](ClO4)2 (2N = phen, bipy, en; 2O = dhp, malt) or [Co(4N)(2O)](ClO4)2 (4N = tpa; 2O = etmalt) type complexes were assessed by X-ray diffraction and showed the expected octahedral geometry. Replacement of the 4N donor ligands by two 2N donor ligands resulted in the decrease of the cathodic peak potential of the complexes indicating easier reduction and allowing therefore the tailoring of the redox properties of the complexes. Screening of selected compounds against a human derived cancer cell line, HeLa, showed that, unlike the [Co(4N)(2O)]X2 derivatives, the complexes containing 2N = bipy or phen ligands have better anticancer activity than cisplatin or carboplatin.
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Affiliation(s)
- Sándor Nagy
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - István Kacsir
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Makai
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Csaba Bényei
- Department of Physical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary.
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13
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Hegyi PJ, Soós A, Tóth E, Ébert A, Venglovecz V, Márta K, Mátrai P, Mikó A, Bajor J, Sarlós P, Vincze Á, Halász A, Izbéki F, Szepes Z, Czakó L, Kovács G, Papp M, Dubravcsik Z, Varga M, Hamvas J, Németh BC, Macarie M, Ince AT, Bordin DS, Dubtsova EA, Kiryukova MA, Khatkov IE, Bideeva T, Mickevicius A, Ramírez-Maldonado E, Sallinen V, Erőss B, Pécsi D, Szentesi A, Párniczky A, Tiszlavicz L, Hegyi P. Evidence for diagnosis of early chronic pancreatitis after three episodes of acute pancreatitis: a cross-sectional multicentre international study with experimental animal model. Sci Rep 2021; 11:1367. [PMID: 33446814 PMCID: PMC7809468 DOI: 10.1038/s41598-020-80532-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 04/23/2020] [Accepted: 12/18/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic pancreatitis (CP) is an end-stage disease with no specific therapy; therefore, an early diagnosis is of crucial importance. In this study, data from 1315 and 318 patients were analysed from acute pancreatitis (AP) and CP registries, respectively. The population from the AP registry was divided into AP (n = 983), recurrent AP (RAP, n = 270) and CP (n = 62) groups. The prevalence of CP in combination with AP, RAP2, RAP3, RAP4 and RAP5 + was 0%, 1%, 16%, 50% and 47%, respectively, suggesting that three or more episodes of AP is a strong risk factor for CP. Laboratory, imaging and clinical biomarkers highlighted that patients with RAP3 + do not show a significant difference between RAPs and CP. Data from CP registries showed 98% of patients had at least one AP and the average number of episodes was four. We mimicked the human RAPs in a mouse model and found that three or more episodes of AP cause early chronic-like morphological changes in the pancreas. We concluded that three or more attacks of AP with no morphological changes to the pancreas could be considered as early CP (ECP).The new diagnostic criteria for ECP allow the majority of CP patients to be diagnosed earlier. They can be used in hospitals with no additional costs in healthcare.
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Affiliation(s)
- Péter J Hegyi
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary.,Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary.,Department of Gastroenterology, Slovak Medical University in Bratislava, Bratislava, Slovakia
| | - Alexandra Soós
- Department of Medicine, University of Szeged, Szeged, Hungary
| | - Emese Tóth
- Department of Medicine, University of Szeged, Szeged, Hungary
| | - Attila Ébert
- Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | | | - Katalin Márta
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Péter Mátrai
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Alexandra Mikó
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary.,Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Judit Bajor
- Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Patrícia Sarlós
- Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Áron Vincze
- Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Adrienn Halász
- Szent György Teaching Hospital of County Fejér, Székesfehérvár, Hungary
| | - Ferenc Izbéki
- Szent György Teaching Hospital of County Fejér, Székesfehérvár, Hungary
| | - Zoltán Szepes
- Department of Medicine, University of Szeged, Szeged, Hungary
| | - László Czakó
- Department of Medicine, University of Szeged, Szeged, Hungary
| | - György Kovács
- Department of Internal Medicine, Division of Gastroenterology, University of Debrecen, Debrecen, Hungary
| | - Mária Papp
- Department of Internal Medicine, Division of Gastroenterology, University of Debrecen, Debrecen, Hungary
| | | | | | - József Hamvas
- Peterfy Hospital and Trauma, Trauma Emergency Room, Esztergom, Hungary
| | - Balázs C Németh
- Department of Medicine, University of Szeged, Szeged, Hungary
| | - Melania Macarie
- County Emergency Clinical Hospital - Gastroenterology and, University of Medicine, Pharmacy, Sciences and Technology, Târgu Mureș, Romania
| | - Ali Tüzün Ince
- School of Medicine, Hospital of Bezmialem Vakif University, Istanbul, Turkey
| | - Dmitry S Bordin
- A.S. Loginov Moscow Clinical Scientific Center, Moscow, Russia.,Tver State Medical University, Tver, Russia.,A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | | | | | - Igor E Khatkov
- A.S. Loginov Moscow Clinical Scientific Center, Moscow, Russia.,A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | | | - Artautas Mickevicius
- Clinic of Gastroenterology, Nephrourology and Abdominal Surgery, Faculty of Medicine, Vilnius University, Vilnius,, Lithuania
| | | | - Ville Sallinen
- Department of Abdominal Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Transplantation and Liver Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Bálint Erőss
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary.,Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Dániel Pécsi
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Andrea Szentesi
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary.,Department of Medicine, University of Szeged, Szeged, Hungary
| | - Andrea Párniczky
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary.,Heim Pál National Institute of Pediatrics, Budapest, Hungary
| | | | - Péter Hegyi
- Institute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary. .,Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary. .,Department of Medicine, University of Szeged, Szeged, Hungary.
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14
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Tripolszky A, Tóth E, Szabó PT, Hackler L, Kari B, Puskás LG, Bálint E. Synthesis and In Vitro Cytotoxicity and Antibacterial Activity of Novel 1,2,3-Triazol-5-yl-phosphonates. Molecules 2020; 25:E2643. [PMID: 32517229 PMCID: PMC7321403 DOI: 10.3390/molecules25112643] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 11/18/2022] Open
Abstract
Novel 1,2,3-triazol-5-yl-phosphonates were prepared by the copper(I)-catalyzed domino reaction of phenylacetylene, organic azides and dialkyl phosphites. The process was optimized on the synthesis of the dibutyl (1-benzyl-4-phenyl-1H-1,2,3-triazol-5-yl)phosphonate in respect of the catalyst, the base and the solvent, as well as of the reaction parameters (molar ratio of the starting materials, atmosphere, temperature and reaction time). The method elaborated could be applied to a range of organic azides and dialkyl phosphites, which confirmed the large scope and the functional group tolerance. The in vitro cytotoxicity on different cell lines and the antibacterial activity of the synthesized 1,2,3-triazol-5-yl-phosphonates was explored. According to the IC50 values determined, only modest antibacterial effect was detected, while some derivatives showed moderate activity against human promyelocytic leukemia HL-60 cells.
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Affiliation(s)
- Anna Tripolszky
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1521 Budapest, Hungary; (A.T.); (E.T.)
| | - Emese Tóth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1521 Budapest, Hungary; (A.T.); (E.T.)
| | - Pál Tamás Szabó
- MS Metabolomics Laboratory, Instrumentation Center, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., 1117 Budapest, Hungary;
| | - László Hackler
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary; (L.H.J.); (B.K.)
| | - Beáta Kari
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary; (L.H.J.); (B.K.)
| | - László G. Puskás
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary; (L.H.J.); (B.K.)
| | - Erika Bálint
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1521 Budapest, Hungary; (A.T.); (E.T.)
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15
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Tóth E, Ungor D, Novák T, Ferenc G, Bánhelyi B, Csapó E, Erdélyi M, Csete M. Mapping Fluorescence Enhancement of Plasmonic Nanorod Coupled Dye Molecules. Nanomaterials (Basel) 2020; 10:nano10061048. [PMID: 32485951 PMCID: PMC7352240 DOI: 10.3390/nano10061048] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/20/2020] [Accepted: 05/25/2020] [Indexed: 12/27/2022]
Abstract
Plasmonically enhanced fluorescence is a widely studied and applied phenomenon, however, only a comparative theoretical and experimental analysis of coupled fluorophores and plasmonic nanoresonators makes it possible to uncover how this phenomenon can be controlled. A numerical optimization method was applied to design configurations that are capable of resulting in an enhancement of excitation and emission, moreover, of both phenomena simultaneously in coupled Cy5 dye molecule and gold nanorod systems. Parametric sensitivity studies revealed how the fluorescence enhancement depends on the molecule’s location, distance and orientation. Coupled systems designed for simultaneous improvement exhibited the highest (intermediate directional) total fluorescence enhancement, which is accompanied by intermediate sensitivity to the molecule’s parameters, except the location and orientation sensitivity at the excitation wavelength. Gold nanorods with a geometry corresponding to the predicted optimal configurations were synthesized, and DNA strands were used to control the Cy5 dye molecule distance from the nanorod surface via hybridization of the Cy5-labelled oligonucleotide. State-of-the-art dSTORM microscopy was used to accomplish a proof-of-concept experimental demonstration of the theoretically predicted (directional) total fluorescence enhancement. The measured fluorescence enhancement was in good agreement with theoretical predictions, thus providing a complete kit to design and prepare coupled nanosystems exhibiting plasmonically enhanced fluorescence.
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Affiliation(s)
- Emese Tóth
- Department of Optics and Quantum Electronics, University of Szeged, Dóm Square 9, H-6720 Szeged, Hungary; (E.T.); (T.N.); (M.E.)
| | - Ditta Ungor
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Rerrich B. Square 1, H-6720 Szeged, Hungary; (D.U.); (E.C.)
| | - Tibor Novák
- Department of Optics and Quantum Electronics, University of Szeged, Dóm Square 9, H-6720 Szeged, Hungary; (E.T.); (T.N.); (M.E.)
| | - Györgyi Ferenc
- Institute of Plant Biology, Biological Research Centre, Temesvári krt. 62, H-6726 Szeged, Hungary;
| | - Balázs Bánhelyi
- Department of Computational Optimization, University of Szeged, Árpád Square 2, H-6720 Szeged, Hungary;
| | - Edit Csapó
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Rerrich B. Square 1, H-6720 Szeged, Hungary; (D.U.); (E.C.)
- MTA-SZTE Biomimetic Systems Research Group, Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Dóm Square 8, H-6720 Szeged, Hungary
| | - Miklós Erdélyi
- Department of Optics and Quantum Electronics, University of Szeged, Dóm Square 9, H-6720 Szeged, Hungary; (E.T.); (T.N.); (M.E.)
| | - Mária Csete
- Department of Optics and Quantum Electronics, University of Szeged, Dóm Square 9, H-6720 Szeged, Hungary; (E.T.); (T.N.); (M.E.)
- Correspondence: ; Tel.: +36-62-544654
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16
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Fanczal J, Pallagi P, Görög M, Diszházi G, Almássy J, Madácsy T, Varga Á, Csernay-Biró P, Katona X, Tóth E, Molnár R, Rakonczay Z, Hegyi P, Maléth J. TRPM2-mediated extracellular Ca 2+ entry promotes acinar cell necrosis in biliary acute pancreatitis. J Physiol 2020; 598:1253-1270. [PMID: 31917868 DOI: 10.1113/jp279047] [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: 10/01/2019] [Accepted: 12/24/2019] [Indexed: 01/05/2023] Open
Abstract
KEY POINTS Acute biliary pancreatitis is a significant clinical challenge as currently no specific pharmaceutical treatment exists. Intracellular Ca2+ overload, increased reactive oxygen species (ROS) production, mitochondrial damage and intra-acinar digestive enzyme activation caused by bile acids are hallmarks of acute biliary pancreatitis. Transient receptor potential melastatin 2 (TRPM2) is a non-selective cation channel that has recently emerged as an important contributor to oxidative-stress-induced cellular Ca2+ overload across different diseases. We demonstrated that TRPM2 is expressed in the plasma membrane of mouse pancreatic acinar and ductal cells, which can be activated by increased oxidative stress induced by H2 O2 treatment and contributed to bile acid-induced extracellular Ca2+ influx in acinar cells, which promoted acinar cell necrosis in vitro and in vivo. These results suggest that the inhibition of TRPM2 may be a potential treatment option for biliary pancreatitis. ABSTRACT Acute biliary pancreatitis poses a significant clinical challenge as currently no specific pharmaceutical treatment exists. Disturbed intracellular Ca2+ signalling caused by bile acids is a hallmark of the disease, which induces increased reactive oxygen species (ROS) production, mitochondrial damage, intra-acinar digestive enzyme activation and cell death. Because of this mechanism of action, prevention of toxic cellular Ca2+ overload is a promising therapeutic target. Transient receptor potential melastatin 2 (TRPM2) is a non-selective cation channel that has recently emerged as an important contributor to oxidative-stress-induced cellular Ca2+ overload across different diseases. However, the expression and possible functions of TRPM2 in the exocrine pancreas remain unknown. Here we found that TRPM2 is expressed in the plasma membrane of mouse pancreatic acinar and ductal cells, which can be activated by increased oxidative stress induced by H2 O2 treatment. TRPM2 activity was found to contribute to bile acid-induced extracellular Ca2+ influx in acinar cells, but did not have the same effect in ductal cells. The generation of intracellular ROS in response to bile acids was remarkably higher in pancreatic acinar cells compared to isolated ducts, which can explain the difference between acinar and ductal cells. This activity promoted acinar cell necrosis in vitro independently from mitochondrial damage or mitochondrial fragmentation. In addition, bile-acid-induced experimental pancreatitis was less severe in TRPM2 knockout mice, whereas the lack of TRPM2 had no protective effect in cerulein-induced acute pancreatitis. Our results suggest that the inhibition of TRPM2 may be a potential treatment option for biliary pancreatitis.
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Affiliation(s)
- Júlia Fanczal
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Petra Pallagi
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Marietta Görög
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Gyula Diszházi
- Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - János Almássy
- Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - Tamara Madácsy
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Árpád Varga
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Péter Csernay-Biró
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Xénia Katona
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Emese Tóth
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Réka Molnár
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Zoltán Rakonczay
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Péter Hegyi
- HAS-USZ Momentum Translational Gastroenterology Research Group, University of Szeged, Szeged, Hungary.,Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - József Maléth
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary.,Department of Public Health, University of Szeged, Szeged, Hungary
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17
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Diossy M, Reiniger L, Sztupinszki Z, Krzystanek M, Timms KM, Neff C, Solimeno C, Pruss D, Eklund AC, Tóth E, Kiss O, Rusz O, Cserni G, Zombori T, Székely B, Kulka J, Tímár J, Csabai I, Szallasi Z. Breast cancer brain metastases show increased levels of genomic aberration-based homologous recombination deficiency scores relative to their corresponding primary tumors. Ann Oncol 2019; 29:1948-1954. [PMID: 29917049 PMCID: PMC6158763 DOI: 10.1093/annonc/mdy216] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [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] [Indexed: 12/22/2022] Open
Abstract
Background Based on its mechanism of action, PARP inhibitor therapy is expected to benefit mainly tumor cases with homologous recombination deficiency (HRD). Therefore, identification of tumor types with increased HRD is important for the optimal use of this class of therapeutic agents. HRD levels can be estimated using various mutational signatures from next generation sequencing data and we used this approach to determine whether breast cancer brain metastases show altered levels of HRD scores relative to their corresponding primary tumor. Patients and methods We used a previously published next generation sequencing dataset of 21 matched primary breast cancer/brain metastasis pairs to derive the various mutational signatures/HRD scores strongly associated with HRD. We also carried out the myChoice HRD analysis on an independent cohort of 17 breast cancer patients with matched primary/brain metastasis pairs. Results All of the mutational signatures indicative of HRD showed a significant increase in the brain metastases relative to their matched primary tumor in the previously published whole exome sequencing dataset. In the independent validation cohort, the myChoice HRD assay showed an increased level in 87.5% of the brain metastases relative to the primary tumor, with 56% of brain metastases being HRD positive according to the myChoice criteria. Conclusions The consistent observation that brain metastases of breast cancer tend to have higher HRD measures may raise the possibility that brain metastases may be more sensitive to PARP inhibitor treatment. This observation warrants further investigation to assess whether this increase is common to other metastatic sites as well, and whether clinical trials should adjust their strategy in the application of HRD measures for the prioritization of patients for PARP inhibitor therapy.
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Affiliation(s)
- M Diossy
- Department of Bio and Health Informatics, Technical University of Denmark, Lyngby, Denmark
| | - L Reiniger
- 1st Department of Pathology and Experimental Research, Semmelweis University, Budapest; 2nd Department of Pathology, MTA-SE NAP, Brain Metastasis Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest
| | - Z Sztupinszki
- Department of Bio and Health Informatics, Technical University of Denmark, Lyngby, Denmark; 2nd Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - M Krzystanek
- Department of Bio and Health Informatics, Technical University of Denmark, Lyngby, Denmark
| | - K M Timms
- Myriad Genetics Inc, Salt Lake City, USA
| | - C Neff
- Myriad Genetics Inc, Salt Lake City, USA
| | - C Solimeno
- Myriad Genetics Inc, Salt Lake City, USA
| | - D Pruss
- Myriad Genetics Inc, Salt Lake City, USA
| | - A C Eklund
- Department of Bio and Health Informatics, Technical University of Denmark, Lyngby, Denmark
| | - E Tóth
- Department of Pathology, National Institute of Oncology, Budapest
| | - O Kiss
- Department of Pathology, National Institute of Oncology, Budapest
| | - O Rusz
- Department of Oncotherapy, University of Szeged, Szeged
| | - G Cserni
- Department of Oncotherapy, University of Szeged, Szeged; Department of Pathology, Bács-Kiskun County Teaching Hospital, Kecskemét
| | - T Zombori
- Department of Oncotherapy, University of Szeged, Szeged
| | - B Székely
- 2nd Department of Pathology, Semmelweis University, Budapest; Department of Oncological Internal Medicine and Clinical Pharmacology "B", National Institute of Oncology, Budapest
| | - J Kulka
- 2nd Department of Pathology, Semmelweis University, Budapest
| | - J Tímár
- 2nd Department of Pathology, Semmelweis University, Budapest
| | - I Csabai
- Department of Physics of Complex Systems, Eötvös Loránd University, Budapest, Hungary
| | - Z Szallasi
- Department of Bio and Health Informatics, Technical University of Denmark, Lyngby, Denmark; 2nd Department of Pathology, MTA-SE NAP, Brain Metastasis Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest; Computational Health Informatics Program, Boston Children's Hospital, Harvard Medical School, Boston, USA.
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18
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Tóth E, Maléth J, Závogyán N, Fanczal J, Grassalkovich A, Erdős R, Pallagi P, Horváth G, Tretter L, Bálint ER, Rakonczay Z, Venglovecz V, Hegyi P. Novel mitochondrial transition pore inhibitor N-methyl-4-isoleucine cyclosporin is a new therapeutic option in acute pancreatitis. J Physiol 2019; 597:5879-5898. [PMID: 31631343 DOI: 10.1113/jp278517] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 10/11/2019] [Indexed: 12/26/2022] Open
Abstract
KEY POINTS •Bile acids, ethanol and fatty acids affect pancreatic ductal fluid and bicarbonate secretion via mitochondrial damage, ATP depletion and calcium overload. •Pancreatitis-inducing factors open the membrane transition pore (mPTP) channel via cyclophilin D activation in acinar cells, causing calcium overload and cell death; genetic or pharmacological inhibition of mPTP improves the outcome of acute pancreatitis in animal models. •Here we show that genetic and pharmacological inhibition of mPTP protects mitochondrial homeostasis and cell function evoked by pancreatitis-inducing factors in pancreatic ductal cells. •The results also show that the novel cyclosporin A derivative NIM811 protects mitochondrial function in acinar and ductal cells, and it preserves bicarbonate transport mechanisms in pancreatic ductal cells. •We found that NIM811 is highly effective in different experimental pancreatitis models and has no side-effects. NIM811 is a highly suitable compound to be tested in clinical trials. ABSTRACT Mitochondrial dysfunction plays a crucial role in the development of acute pancreatitis (AP); however, no compound is currently available with clinically acceptable effectiveness and safety. In this study, we investigated the effects of a novel mitochondrial transition pore inhibitor, N-methyl-4-isoleucine cyclosporin (NIM811), in AP. Pancreatic ductal and acinar cells were isolated by enzymatic digestion from Bl/6 mice. In vitro measurements were performed by confocal microscopy and microfluorometry. Preventative effects of pharmacological [cylosporin A (2 µm), NIM811 (2 µm)] or genetic (Ppif-/- /Cyp D KO) inhibition of the mitochondrial transition pore (mPTP) during the administration of either bile acids (BA) or ethanol + fatty acids (EtOH+FA) were examined. Toxicity of mPTP inhibition was investigated by detecting apoptosis and necrosis. In vivo effects of the most promising compound, NIM811 (5 or 10 mg kg-1 per os), were checked in three different AP models induced by either caerulein (10 × 50 µg kg-1 ), EtOH+FA (1.75 g kg-1 ethanol and 750 mg kg-1 palmitic acid) or 4% taurocholic acid (2 ml kg-1 ). Both genetic and pharmacological inhibition of Cyp D significantly prevented the toxic effects of BA and EtOH+FA by restoring mitochondrial membrane potential (Δψ) and preventing the loss of mitochondrial mass. In vivo experiments revealed that per os administration of NIM811 has a protective effect in AP by reducing oedema, necrosis, leukocyte infiltration and serum amylase level in AP models. Administration of NIM811 had no toxic effects. The novel mitochondrial transition pore inhibitor NIM811 thus seems to be an exceptionally good candidate compound for clinical trials in AP.
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Affiliation(s)
- Emese Tóth
- First Department of Medicine, University of Szeged, Szeged, Hungary.,Momentum Translational Gastroenterology Research Group, Hungarian Academy of Sciences-University of Szeged, Szeged, Hungary
| | - József Maléth
- First Department of Medicine, University of Szeged, Szeged, Hungary.,Momentum Epithelial Cell Signalling and Secretion Research Group, Hungarian Academy of Sciences-University of Szeged, Szeged, Hungary
| | - Noémi Závogyán
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Júlia Fanczal
- First Department of Medicine, University of Szeged, Szeged, Hungary.,Momentum Epithelial Cell Signalling and Secretion Research Group, Hungarian Academy of Sciences-University of Szeged, Szeged, Hungary
| | - Anna Grassalkovich
- First Department of Medicine, University of Szeged, Szeged, Hungary.,Momentum Translational Gastroenterology Research Group, Hungarian Academy of Sciences-University of Szeged, Szeged, Hungary
| | - Réka Erdős
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Petra Pallagi
- First Department of Medicine, University of Szeged, Szeged, Hungary.,Momentum Epithelial Cell Signalling and Secretion Research Group, Hungarian Academy of Sciences-University of Szeged, Szeged, Hungary
| | - Gergő Horváth
- Department of Medical Biochemistry, Semmelweis University, Budapest, Hungary
| | - László Tretter
- Department of Medical Biochemistry, Semmelweis University, Budapest, Hungary
| | - Emese Réka Bálint
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Zoltán Rakonczay
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Viktória Venglovecz
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Péter Hegyi
- Momentum Translational Gastroenterology Research Group, Hungarian Academy of Sciences-University of Szeged, Szeged, Hungary.,Institute for Translational Medicine and First Department of Medicine, University of Pécs, Pécs, Hungary.,Szentágothai Research Centre, University of Pécs, Pécs, Hungary
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19
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Fabro F, Tóth E, Dekker LJM, Luider TM, Pierson TM, Leenstra S. P13.07 Multi-omics as a tool for elucidating temozolomide resistance in glioblastoma multiforme. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.228] [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: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Glioblastoma multiforme is the most common and aggressive brain tumor in adults, with an average overall survival of 14 months. Current standard of care consists of tumor resection followed by radiotherapy with concomitant temozolomide and adjuvant temozolomide. However, glioblastoma recurs in all patients. The causes reside in the enhanced invasiveness and resistance to treatment, giving a clear indication that recurrent and resistant glioblastoma biology must be understood better in order to achieve future treatment strategies to benefit the patients. The complex nature of recurrent glioblastoma makes its understanding still a challenging achievement in the field. Nowadays multi-omics approaching is developing further and further and it may be used to unravel, by combining different layers of biological information, a comprehensive view of the changes occurring during the treatment.
MATERIAL AND METHODS
A discovery set of 13 primary patient-derived glioblastoma stem-like cultures were analysed, comprising selected resistant, induced resistant and with pre-existing resistance conditions. A characterization of transcriptome, proteome and phosphoproteome was performed using RNAseq and liquid chromatography mass spectrometry. Additional 10 paired primary and recurrent tumor tissues were utilized as a validation set. The data obtained was visualised, explored and integrated through TIBCO Spotfire, Ingenuity Pathway Analysis, STRING and COREMINE medical software.
RESULTS
Genetic regulatory processes such as DNA repair mechanism, mRNA splicing and chromatin assembly were shown to be common over-represented trends in resistant and recurrent glioblastomas as a result of increased genomic instability and stress deriving from acute an repeated temozolomide exposure. Due to the immense heterogeneity of glioblastomas, other proteins and genes here identified as differentially expressed need a further investigation as they also may play an important role in relevant biological processes in a patient-specific way.
CONCLUSION
This study provides further understanding of glioblastoma biology revealing an association with processes of recurrence and temozolomide resistance, moreover offering potential therapeutic targets for better treatment options for glioblastoma patients.
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Affiliation(s)
- F Fabro
- Erasmus Medical Center, Rotterdam, Netherlands
| | - E Tóth
- Erasmus Medical Center, Rotterdam, Netherlands
| | | | - T M Luider
- Erasmus Medical Center, Rotterdam, Netherlands
| | - T M Pierson
- Erasmus Medical Center, Rotterdam, Netherlands
| | - S Leenstra
- Erasmus Medical Center, Rotterdam, Netherlands
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20
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Diossy M, Reiniger L, Sztupinszki Z, Krzystanek M, Timms KM, Neff C, Solimeno C, Pruss D, Eklund AC, Tóth E, Kiss O, Rusz O, Cserni G, Zombori T, Székely B, Kulka J, Tímár J, Csabai I, Szallasi Z. Corrigendum to: Breast cancer brain metastases show increased levels of genomic aberration-based homologous recombination deficiency scores relative to their corresponding primary tumors. Ann Oncol 2019; 30:1406. [PMID: 30929001 PMCID: PMC6683852 DOI: 10.1093/annonc/mdz081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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21
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Tripolszky A, Tóth E, Bálint E. Synthesis of 1,2,3-triazolyl-5-diethylphosphonate by domino reaction. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1547727] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Anna Tripolszky
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Emese Tóth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Erika Bálint
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
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22
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Szuróczki S, Khayer B, Spröer C, Toumi M, Szabó A, Felföldi T, Schumann P, Tóth E. Arundinibacter roseus gen. nov., sp. nov., a new member of the family Cytophagaceae. Int J Syst Evol Microbiol 2019; 69:2076-2081. [PMID: 31099731 DOI: 10.1099/ijsem.0.003436] [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: 11/18/2022] Open
Abstract
Three Gram-stain-negative, aerobic, non-motile, oxidase- and catalase positive, rod-shaped, pink-coloured bacterial strains, DMA-K-7aT, DMA-K-1 and DMG-N-1, were isolated from water sampled at Lake Fertő/Neusiedler See (Hungary). Phylogenetic analysis based on the 16S rRNA gene sequences revealed that the strains form a distinct linage within the family Cytophagaceae of the phylum Bacteroidetes, and their closest relatives are Rhabdobacter roseus R49T (95.66 %) and Dyadobacter sediminis Z12T (95.38 %). The assembled genome of strain DMA-K-7aT had a total length of 5.8 Mb and a DNA G+C content of 45.7 mol%. The major isoprenoid quinone was menaquinone-7 (MK-7). The major cellular fatty acids were C16 : 1 ω7c, iso-C15 : 0, C16 : 1 ω5c, C16 : 0 and iso-C17 : 0 3-OH. The polar lipid profile contained phosphatidylethanolamine, phosphatidylserine, an unknown aminolipid, an unknown glycolipid and five unknown lipids. Flexirubin-type pigments were absent. Strain DMA-K-7aT (=DSM 106737T=NCAIM B.02641T) is proposed as the type strain of a new genus and species in the family Cytophagaceae, for which the name Arundinibacter roseus gen. nov., sp. nov. is proposed.
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Affiliation(s)
- S Szuróczki
- 1Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter stny., 1/C, H-1117 Budapest, Hungary
| | - B Khayer
- 2Department of Water Hygiene, National Public Health Center, Albert Flórián út 2-6. H-1097 Budapest, Hungary
| | - C Spröer
- 3Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstrasse 7B, D-38124, Braunschweig, Germany
| | - M Toumi
- 1Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter stny., 1/C, H-1117 Budapest, Hungary
| | - A Szabó
- 1Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter stny., 1/C, H-1117 Budapest, Hungary
| | - T Felföldi
- 1Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter stny., 1/C, H-1117 Budapest, Hungary
| | - P Schumann
- 3Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstrasse 7B, D-38124, Braunschweig, Germany
| | - E Tóth
- 1Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter stny., 1/C, H-1117 Budapest, Hungary
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23
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Tóth E, Tornóczky T, Kneif J, Perkecz A, Katona K, Piski Z, Kemény Á, Gerlinger I, Szolcsányi J, Kun J, Pintér E. Upregulation of extraneuronal TRPV1 expression in chronic rhinosinusitis with nasal polyps. Rhinology 2018; 56:245-254. [PMID: 29476616 DOI: 10.4193/rhin17.108] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) is a multifactorial upper airway disease with unclear etiology. Neuronal Transient Receptor Potential Vanilloid 1 (TRPV1) and Ankyrin 1 (TRPA1) channels have been implicated in the pathogenesis of CRS. We aimed to detect the expression of extraneuronal TRPV1 and TRPA1 receptors in nasal polyp (NP) tissue samples. METHODOLOGY Samples were obtained from fourty-two CRS pateints with nasal polyp and sixteen healthy controls to measure receptor gene expression by quantitative PCR, protein localization by immunohistochemistry and cytokine profile by multiplex bead immunoassay. RESULTS Non-neuronal TRPV1, TRPA1 receptors were expressed in biopsy samples of NP. A population of mast cells and macrophages were immunopositive for TRPV1 and TRPA1. A fraction of plasma cells expressed TRPV1 but not TRPA1 and neither receptor was present on eosinophils. The local gene expression of extraneuronal TRPV1, TRPA1 receptors was also proven. TRPV1 mRNA levels were significantly increased in CRSwNP patients with asthma and allergic rhinitis compared to their NP counterparts. CONCLUSIONS Elevated TRPV1 levels in comorbid asthma and allergy may have a function in CRSwNP. Subpopulation-specific TRPV1 presence on plasma and mast cells can indicate delicate roles in regulating activation and release of inflammatory mediators.
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Affiliation(s)
- E Tóth
- Department of Oto-Rhino-Laryngology Head and Neck Surgery, Hungarian Defense Forces, National Health Center, Budapest, Hungary
| | - T Tornóczky
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - J Kneif
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - A Perkecz
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Pécs, Hungary
| | - K Katona
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Z Piski
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, University of Pécs Medical School, Pécs, Hungary
| | - Á Kemény
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Pécs, Hungary
| | - I Gerlinger
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, University of Pécs Medical School, Pécs, Hungary
| | - J Szolcsányi
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Pécs, Hungary
| | - J Kun
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Pécs, Hungary
| | - E Pintér
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Pécs, Hungary
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24
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Török P, Matus G, Tóth E, Papp M, Kelemen A, Sonkoly J, Tóthmérész B. Both trait-neutrality and filtering effects are validated by the vegetation patterns detected in the functional recovery of sand grasslands. Sci Rep 2018; 8:13703. [PMID: 30209263 PMCID: PMC6135751 DOI: 10.1038/s41598-018-32078-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/31/2018] [Indexed: 11/09/2022] Open
Abstract
Neutral theory of species assembly means that species assembly is governed by stochastic dispersal processes and fluctuations in established populations. An alternative theory suggests that assembly is strongly determined by functional trait filtering governed by abiotic and biotic filtering selecting species from the local species pool. To test these assumptions, in the current paper we analysed vegetation changes in the first 12 years of succession after heavy goose grazing on acidic sand. With trait-based analyses using permanent plots we addressed the following hypotheses: (i) High fluctuations in the trait values are typical in the first years; later a temporally divergent change in the trait patterns of sites with different vertical position became characteristic. (ii) In the functional diversity of regenerative and vegetative traits we expected different temporal patterns. We confirmed the first hypothesis, as in the first few years most traits displayed high fluctuations with no clear patterns. Our findings weakly supported the second hypothesis; while there were distinct patterns detected in the functional richness of traits, functional divergence and evenness displayed no clear distinctive patterns. We can conclude that both trait neutrality and filtering effects operate in the vegetation changes of the first period of secondary succession.
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Affiliation(s)
- P Török
- MTA-DE Lendület Functional and Restoration Ecology Research Group, Egyetem tér 1, H-4032, Debrecen, Hungary.
- University of Debrecen, Department of Ecology, Egyetem tér 1, H-4032, Debrecen, Hungary.
| | - G Matus
- University of Debrecen, Department of Botany, Egyetem tér 1, H-4032, Debrecen, Hungary
| | - E Tóth
- MTA-DE Lendület Functional and Restoration Ecology Research Group, Egyetem tér 1, H-4032, Debrecen, Hungary
| | - M Papp
- University of Debrecen, Department of Botany, Egyetem tér 1, H-4032, Debrecen, Hungary
| | - A Kelemen
- University of Debrecen, Department of Ecology, Egyetem tér 1, H-4032, Debrecen, Hungary
- MTA Postdoctoral Research Program, MTA TKI, Nádor utca 7, Budapest, H-1051, Hungary
| | - J Sonkoly
- MTA-DE Lendület Functional and Restoration Ecology Research Group, Egyetem tér 1, H-4032, Debrecen, Hungary
- University of Debrecen, Department of Ecology, Egyetem tér 1, H-4032, Debrecen, Hungary
| | - B Tóthmérész
- University of Debrecen, Department of Ecology, Egyetem tér 1, H-4032, Debrecen, Hungary
- MTA-DE Biodiversity and Ecosystem Services Research Group, Egyetem tér 1, H-4032, Debrecen, Hungary
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25
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Gabnai SG, Kósa L, Tóth E, Schulteisz N, Gangl J, Othman M, Ihász F. Physiological adaptations to specific endurance training in professional female handball players. Physiol Int 2018; 105:266-275. [PMID: 30022680 DOI: 10.1556/2060.105.2018.2.12] [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: 11/19/2022]
Abstract
Several Hungarian and foreign researchers have already studied the cardiorespiratory parameters of elite handball players. There are only a few studies though, which would separately review the changes in the functions of different organ systems. The aim of this study is to investigate the effect of an intervention (physical activity) on the cardiorespiratory system. In this study, 16 elite female handball players participated, whose body compositions were measured and took two vita maxima tests. During the analysis, each cardiorespiratory parameter was monitored for every 20 s. Between the two examinations, 6 weeks passed and an intervention took place. There was a significant decrease in relative body fat and a significant increase in relative muscle mass. Remarkable positive changes occurred in the values of ventilation, oxygen pulse, and in both absolute and relative aerobic capacities as well. The mean values of the team developed as expected, but the individual changes in body composition and cardiorespiratory parameters are just as important. First, we chose four players, who had the most outstanding changes. Second, we analyzed such parameters, which were expected to show adequate results in terms of the apparatus(es) functioning.
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Affiliation(s)
- S G Gabnai
- 1 Faculty of Pedagogy and Psychology, Department of Sport Sciences, Eötvös Loránd University , Szombathely, Hungary
| | - L Kósa
- 1 Faculty of Pedagogy and Psychology, Department of Sport Sciences, Eötvös Loránd University , Szombathely, Hungary
| | - E Tóth
- 1 Faculty of Pedagogy and Psychology, Department of Sport Sciences, Eötvös Loránd University , Szombathely, Hungary
| | - N Schulteisz
- 2 Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs , Pécs, Hungary
| | - J Gangl
- 2 Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs , Pécs, Hungary
| | - M Othman
- 3 Branch of Daraa, Third Faculty of Education, Damascus University , Damascus, Syria
| | - F Ihász
- 1 Faculty of Pedagogy and Psychology, Department of Sport Sciences, Eötvös Loránd University , Szombathely, Hungary
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26
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Venglovecz V, Pallagi P, Kemény LV, Balázs A, Balla Z, Becskeházi E, Gál E, Tóth E, Zvara Á, Puskás LG, Borka K, Sendler M, Lerch MM, Mayerle J, Kühn JP, Rakonczay Z, Hegyi P. The Importance of Aquaporin 1 in Pancreatitis and Its Relation to the CFTR Cl - Channel. Front Physiol 2018; 9:854. [PMID: 30050452 PMCID: PMC6052342 DOI: 10.3389/fphys.2018.00854] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 06/15/2018] [Indexed: 12/17/2022] Open
Abstract
Aquaporins (AQPs) facilitate the transepithelial water flow involved in epithelial fluid secretion in numerous tissues; however, their function in the pancreas is less characterized. Acute pancreatitis (AP) is a serious disorder in which specific treatment is still not possible. Accumulating evidence indicate that decreased pancreatic ductal fluid secretion plays an essential role in AP; therefore, the aim of this study was to investigate the physiological and pathophysiological role of AQPs in the pancreas. Expression and localization of AQPs were investigated by real-time PCR and immunocytochemistry, whereas osmotic transmembrane water permeability was estimated by the dye dilution technique, in Capan-1 cells. The presence of AQP1 and CFTR in the mice and human pancreas were investigated by immunohistochemistry. Pancreatic ductal HCO3- and fluid secretion were studied on pancreatic ducts isolated from wild-type (WT) and AQP1 knock out (KO) mice using microfluorometry and videomicroscopy, respectively. In vivo pancreatic fluid secretion was estimated by magnetic resonance imaging. AP was induced by intraperitoneal injection of cerulein and disease severity was assessed by measuring biochemical and histological parameters. In the mice, the presence of AQP1 was detected throughout the whole plasma membrane of the ductal cells and its expression highly depends on the presence of CFTR Cl- channel. In contrast, the expression of AQP1 is mainly localized to the apical membrane of ductal cells in the human pancreas. Bile acid treatment dose- and time-dependently decreased mRNA and protein expression of AQP1 and reduced expression of this channel was also demonstrated in patients suffering from acute and chronic pancreatitis. HCO3- and fluid secretion significantly decreased in AQP1 KO versus WT mice and the absence of AQP1 also worsened the severity of pancreatitis. Our results suggest that AQP1 plays an essential role in pancreatic ductal fluid and HCO3- secretion and decreased expression of the channel alters fluid secretion which probably contribute to increased susceptibility of the pancreas to inflammation.
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Affiliation(s)
- Viktória Venglovecz
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Petra Pallagi
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Lajos V Kemény
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Anita Balázs
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Zsolt Balla
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Eszter Becskeházi
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Eleonóra Gál
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Emese Tóth
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Ágnes Zvara
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - László G Puskás
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Katalin Borka
- Second Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Matthias Sendler
- Department of Medicine A, University Medicine Greifswald, University of Greifswald, Greifswald, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, University of Greifswald, Greifswald, Germany
| | - Julia Mayerle
- Department of Medicine A, University Medicine Greifswald, University of Greifswald, Greifswald, Germany.,Department of Medicine II, Klinikum Grosshadern, Universitätsklinikum der Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jens-Peter Kühn
- Institute of Radiology, University Medicine Greifswald, University of Greifswald, Greifswald, Germany.,Institute and Policlinic of Radiology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Zoltán Rakonczay
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Péter Hegyi
- First Department of Medicine, University of Szeged, Szeged, Hungary.,MTA-SZTE Translational Gastroenterology Research Group, University of Szeged, Szeged, Hungary.,Institute for Translational Medicine and First Department of Medicine, Medical School, University of Pécs, Pécs, Hungary
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Abstract
Climate change is expected to have a vigorous impact on soils and ecosystems due to elevated temperature and changes in precipitation (amount and frequency), thereby altering biogeochemical and hydrological cycles. Several phenomena associated with climate change and anthropogenic activity affect soils indirectly via ecosystem functioning (such as higher atmospheric CO2 concentration and N deposition). Continuous interactions between climate and soils determine the transformation and transport processes. Long-term gradual changes in abiotic environmental factors alter naturally occurring soil forming processes by modifying the soil water regime, mineral composition evolution, and the rate of organic matter formation and degradation. The resulting physical and chemical soil properties play a fundamental role in the productivity and environmental quality of cultivated land, so it is crucial to evaluate the potential outcomes of climate change and soil interactions. This paper attempts to review the underlying long-term processes influenced by different aspects of climate change. When considering major soil forming factors (climate, parent material, living organisms, topography), especially climate, we put special attention to soil physical properties (soil structure and texture, and consequential changes in soil hydrothermal regime), soil chemical properties (e.g. cation exchange capacity, soil organic matter content as influenced by changes in environmental conditions) and soil degradation as a result of longterm soil physicochemical transformations. The temperate region, specifically the Carpathian Basin as a heterogeneous territory consisting of different climatic and soil zones from continental to mountainous, is used as an example to present potential changes and to assess the effect of climate change on soils. The altered physicochemical and biological properties of soils require accentuated scientific attention, particularly with respect to significant feedback processes to climate and soil services such as food security.
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Affiliation(s)
- G. Gelybó
- 1 Department of Soil Science, Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary
| | - E. Tóth
- 1 Department of Soil Science, Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary
| | - C. Farkas
- 1 Department of Soil Science, Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary
- 2 NIBIO, Norwegian Institute of Bioeconomy Research, Ås, Norway
| | - Á. Horel
- 1 Department of Soil Science, Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary
| | - I. Kása
- 1 Department of Soil Science, Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary
| | - Z. Bakacsi
- 1 Department of Soil Science, Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary
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Böjti PP, Szakács Z, Tóth E. 0608 Drug-induced Sleep Endoscopy In Obstructive Sleep Apnea-hypopnea Syndrome And Upper Airway Resistance Syndrome. Description And Associations. Sleep 2018. [DOI: 10.1093/sleep/zsy061.607] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- P P Böjti
- Departement of Neurology, Medical Centre Hungarian Defence Forces, Budapest, HUNGARY
- János Szentágothai Doctoral School of Neurosciences, Semmelweis University, Budapest, HUNGARY
| | - Z Szakács
- Departement of Neurology, Medical Centre Hungarian Defence Forces, Budapest, HUNGARY
| | - E Tóth
- Department of Otorhinolaryngology, Medical Centre Hungarian Defence Forces, Budapest, HUNGARY
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29
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Tóth E, Szuróczki S, Kéki Z, Kosztik J, Makk J, Bóka K, Spröer C, Márialigeti K, Schumann P. Brevundimonas balnearis sp. nov., isolated from the well water of a thermal bath. Int J Syst Evol Microbiol 2017; 67:1033-1038. [DOI: 10.1099/ijsem.0.001746] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- E. Tóth
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - S. Szuróczki
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - Zs. Kéki
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - J. Kosztik
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - J. Makk
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - K. Bóka
- Department of Plant Anatomy, Faculty of Science, Eötvös Loránd University, Budapest, Hungary
| | - C. Spröer
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstrasse 7B, D-38124, Braunschweig, Germany
| | - K. Márialigeti
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - P. Schumann
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstrasse 7B, D-38124, Braunschweig, Germany
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Józsa G, Tóth E, Juhász Z. New dressing combination for the treatment of partial thickness burn injuries in children. Ann Burns Fire Disasters 2017; 30:43-46. [PMID: 28592934 PMCID: PMC5446908] [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] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 01/03/2017] [Indexed: 06/07/2023]
Abstract
Burns are among the most common causes of injury in children. Several wound dressings are available to conservatively treat second-degree burns. Seventy-three children were treated with Aquacel Ag foam and Zn-hyaluronon gel to determine their effectiveness on partial thickness burns. We applied silver nitrate solution on 25% of patients for 24 hrs, then checked burn depth. If the burn was superficial second degree, we applied the dressing under study. All dressings were removed 6-7 days later. In the remaining children we used Aquacel Ag foam dressing with Zn-hyaluronon gel at first intervention. The dressing was checked on the second day, and removed on the sixth or seventh day (unless it had spontaneously separated). Hot water scalds were the main cause of injury. Other causes included hot oil, flame and contact, among others. Wound size was on average 5% total body surface area. Burns were seen on all body parts, and in 38 cases on more than one area. None of the 73 children treated with this dressing were diagnosed with wound infection. We observed the epithelialization of the burned areas on the 6th or 7th day after primary treatment. These dressings efficiently promote epithelialization, and a further advantage of Zn-hyaluronon gel is that it enhances cell regeneration and inhibits dressing fixation into the wound. Based on our experience, with this dressing combination we can achieve gentle, child-friendly and cost-effective treatment, excellent wound healing and favourable cosmetic results.
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Affiliation(s)
- G. Józsa
- Gergő Józsa MD,
Department of Paediatrics, Surgical Unit, University of Pécs,7 József A. str., Pécs, H-7623Hungary+36 72 535 900 ext. 37925;
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31
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Balla BC, Terebessy A, Tóth E, Balázs P. Hungarian high-school students’ attitude toward the HPV vaccine. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw169.048] [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: 11/15/2022] Open
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32
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Bodor P, Baranyai L, Bálo B, Tóth E, Strever A, Hunter J, Bisztray G. GRA.LE.D. (GRApevine LEaf Digitalization) Software for the Detection and Graphic Reconstruction of Ampelometric Differences Between Vitis Leaves. S AFR J ENOL VITIC 2016. [DOI: 10.21548/33-1-1299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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33
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Szentesi A, Tóth E, Bálint E, Fanczal J, Madácsy T, Laczkó D, Ignáth I, Balázs A, Pallagi P, Maléth J, Rakonczay Z, Kui B, Illés D, Márta K, Blaskó Á, Demcsák A, Párniczky A, Pár G, Gódi S, Mosztbacher D, Szücs Á, Halász A, Izbéki F, Farkas N, Hegyi P. Analysis of Research Activity in Gastroenterology: Pancreatitis Is in Real Danger. PLoS One 2016; 11:e0165244. [PMID: 27776171 PMCID: PMC5077088 DOI: 10.1371/journal.pone.0165244] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 10/07/2016] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Biomedical investment trends in 2015 show a huge decrease of investment in gastroenterology. Since academic research usually provides the basis for industrial research and development (R&D), our aim was to understand research trends in the field of gastroenterology over the last 50 years and identify the most endangered areas. METHODS We searched for PubMed hits for gastrointestinal (GI) diseases for the 1965-2015 period. Overall, 1,554,325 articles were analyzed. Since pancreatology was identified as the most endangered field of research within gastroenterology, we carried out a detailed evaluation of research activity in pancreatology. RESULTS In 1965, among the major benign GI disorders, 51.9% of the research was performed on hepatitis, 25.7% on pancreatitis, 21.7% on upper GI diseases and only 0.7% on the lower GI disorders. Half a century later, in 2015, research on hepatitis and upper GI diseases had not changed significantly; however, studies on pancreatitis had dropped to 10.7%, while work on the lower GI disorders had risen to 23.4%. With regard to the malignant disorders (including liver, gastric, colon, pancreatic and oesophageal cancer), no such large-scale changes were observed in the last 50 years. Detailed analyses revealed that besides the drop in research activity in pancreatitis, there are serious problems with the quality of the studies as well. Only 6.8% of clinical trials on pancreatitis were registered and only 5.5% of these registered trials were multicentre and multinational (more than five centres and nations), i.e., the kind that provides the highest level of impact and evidence level. CONCLUSIONS There has been a clear drop in research activity in pancreatitis. New international networks and far more academic R&D activities should be established in order to find the first therapy specifically for acute pancreatitis.
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Affiliation(s)
- Andrea Szentesi
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Emese Tóth
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Emese Bálint
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Júlia Fanczal
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Tamara Madácsy
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Dorottya Laczkó
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Imre Ignáth
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Anita Balázs
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Petra Pallagi
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - József Maléth
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Zoltán Rakonczay
- First Department of Medicine, University of Szeged, Szeged, Hungary
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Balázs Kui
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Dóra Illés
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Katalin Márta
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
| | - Ágnes Blaskó
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
| | - Alexandra Demcsák
- Department of Pediatrics and Pediatric Health Center, University of Szeged, Szeged, Hungary
| | | | - Gabriella Pár
- Department of Gastroenterology, First Department of Medicine, University of Pécs, Pécs, Hungary
| | - Szilárd Gódi
- Department of Translational Medicine, First Department of Medicine, University of Pécs, Pécs, Hungary
| | - Dóra Mosztbacher
- Department of Pediatrics, János Balassa Hospital of County Tolna, Szekszárd, Hungary
| | - Ákos Szücs
- First Department of Surgery, Semmelweis University, Budapest, Hungary
| | - Adrienn Halász
- First Department of Medicine, St. George University Teaching Hospital of County Fejér, Székesfehérvár, Hungary
| | - Ferenc Izbéki
- First Department of Medicine, St. George University Teaching Hospital of County Fejér, Székesfehérvár, Hungary
| | - Nelli Farkas
- Institute of Bioanalysis, University of Pécs, Pécs, Hungary
| | - Péter Hegyi
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
- First Department of Medicine, University of Szeged, Szeged, Hungary
- Department of Translational Medicine, First Department of Medicine, University of Pécs, Pécs, Hungary
- Hungarian Academy of Sciences—University of Szeged, Momentum Gastroenterology Multidisciplinary Research Group, Szeged, Hungary
- * E-mail:
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Lakatos P, Takács I, Marton I, Tóth E, Zoltan C, Lang Z, Psachoulia E, Intorcia M. A Retrospective Longitudinal Database Study of Persistence and Compliance with Treatment of Osteoporosis in Hungary. Calcif Tissue Int 2016; 98:215-25. [PMID: 26686694 DOI: 10.1007/s00223-015-0082-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 08/04/2015] [Accepted: 11/06/2015] [Indexed: 10/22/2022]
Abstract
This study assessed persistence and compliance with anti-osteoporosis therapies, and associations between compliance and clinical outcomes (fracture, fracture-related hospitalization and death), in Hungarian women with postmenopausal osteoporosis. The study used the Hungarian National Health Insurance Fund Administration database and included women with PMO aged at least 50 years, for whom a prescription for anti-osteoporosis medication had been filled between 1 January 2004 and 31 December 2013 (index event). Persistence (prescription refilled within 8 weeks of the end of the previous supply) was evaluated over 2 years; good compliance (medication possession ratio ≥ 80 %) was evaluated at 1 year. Associations between compliance and clinical outcomes (data collected for up to 6 years) were assessed with adjustment for baseline covariates. A total of 296,300 women met the inclusion criteria (524,798 index events). Persistence and compliance were higher for less frequent and parenteral therapies (1- and 2-year persistence: half-yearly [parenteral] vs. daily/weekly/monthly [oral and parenteral], 81 and 38 % vs. 21-34 and 10-18 %, respectively; parenteral vs. oral, 75 and 36 % vs. 32 and 16 %; good compliance: half-yearly vs. daily/weekly/monthly, 70 vs. 24-39 %; parenteral vs. oral 78 vs. 36 %). Good compliance significantly reduced the risks of fracture, fracture-related hospitalization and death (relative risk vs. non-compliance [95 % confidence interval]: 0.77 [0.70-0.84], 0.72 [0.62-0.85] and 0.57 [0.51-0.64], respectively; P < 0.01). Improving compliance through long-interval parenteral therapies may result in clinical benefits for patients.
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Affiliation(s)
- Péter Lakatos
- 1st Department of Medicine, Semmelweis University, Koranyi 2/A, Budapest, 1083, Hungary.
| | - István Takács
- 1st Department of Medicine, Semmelweis University, Koranyi 2/A, Budapest, 1083, Hungary
| | - István Marton
- Healthware Tanácsadó Kft., Warehouse u. 30-32, 6th floor. (RiverPark Office Building), 1093, Budapest, Hungary
| | - Emese Tóth
- Healthware Tanácsadó Kft., Warehouse u. 30-32, 6th floor. (RiverPark Office Building), 1093, Budapest, Hungary
| | - Cina Zoltan
- Healthware Tanácsadó Kft., Warehouse u. 30-32, 6th floor. (RiverPark Office Building), 1093, Budapest, Hungary
| | - Zsolt Lang
- Healthware Tanácsadó Kft., Warehouse u. 30-32, 6th floor. (RiverPark Office Building), 1093, Budapest, Hungary
| | - Emi Psachoulia
- Amgen (Europe) GmbH, 23 Dammstrasse, Zug, 6300, Switzerland
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Farkas I, Molnár I, Somlyay I, Tóth E. EFFICACY DATA OF CYANTRANILIPROLE CONTAINING INSECTICIDE PREPARATION ON CABBAGE ROOT FLY (DELIA RADICUM LINNAEUS) IN WINTER OILSEED RAPE. Commun Agric Appl Biol Sci 2015; 80:149-152. [PMID: 27145579] [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: 06/05/2023]
Abstract
The increasing pressure of oilseed rape pests emphasized the need to improve the insecticide portfolio, i.e. register new active ingredients with new insecticide mode of action. The tested seed treatment formulation applied at 32; 40 and 50 UAT rate of containing cyantraniliprole as active substance. 40 UAT rate gives acceptable control of the Cabbage root fly in each trial. Despite the long lasting flight and egg laying period of cabbage root fly, the standard control products and also this product give 50-65% efficacy. It is enough to reduce damage of the Cabbage root fly and prevent economical damage in oilseed rape.
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Dedinszki D, Kiss A, Márkász L, Márton A, Tóth E, Székely L, Erdődi F. Inhibition of protein phosphatase-1 and -2A decreases the chemosensitivity of leukemic cells to chemotherapeutic drugs. Cell Signal 2014; 27:363-72. [PMID: 25435424 DOI: 10.1016/j.cellsig.2014.11.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 11/21/2014] [Indexed: 01/27/2023]
Abstract
The phosphorylation of key proteins balanced by protein kinases and phosphatases are implicated in the regulation of cell cycle and apoptosis of malignant cells and influences anticancer drug actions. The efficacy of daunorubicin (DNR) in suppression of leukemic cell survival was investigated in the presence of tautomycin (TM) and calyculin A (CLA), specific membrane permeable inhibitors of protein phosphatase-1 (PP1) and -2A (PP2A), respectively. CLA (50 nM) or TM (1μM) suppressed viability of THP-1 and KG-1 myeloid leukemia cell lines to moderate extents; however, they significantly increased survival upon DNR-induced cell death. CLA increased the phosphorylation level of Erk1/2 and PKB/Akt kinases, the retinoblastoma protein (pRb), decreased caspase-3 activation by DNR and increased the phosphorylation level of the inhibitory sites (Thr696 and Thr853) in the myosin phosphatase (MP) target subunit (MYPT1) as well as in a 25kDa kinase-enhanced phosphatase inhibitor (KEPI)-like protein. TM induced enhanced phosphorylation of pRb only, suggesting that this event may be a common factor upon CLA-induced PP2A and TM-induced PP1 inhibitory influences on cell survival. Silencing PP1 by siRNA in HeLa cells, or overexpression of Flag-KEPI in MCF-7 cells coupled with inducing its phosphorylation by PMA or CLA, resulted in increased phosphorylation of pRb. Our results indicate that PP1 directly dephosphorylates pRb, while PP2A might have an indirect influence via mediating the phosphorylation level of PP1 inhibitory proteins. These data imply the importance of PP1 inhibitory proteins in controlling the phosphorylation state of key proteins and regulating drug sensitivity and apoptosis in leukemic cells.
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Affiliation(s)
- Dóra Dedinszki
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Kiss
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Márkász
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Adrienn Márton
- Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Székely
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institute, Stockholm, Sweden
| | - Ferenc Erdődi
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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Lakatos P, Tóth E, Szekeres L, Poór G, Héjj G, Marton I, Takács I. Comparative statistical analysis of osteoporosis treatment based on Hungarian claims data and interpretation of the results in respect to cost-effectiveness. Osteoporos Int 2014; 25:2077-87. [PMID: 24819455 DOI: 10.1007/s00198-014-2733-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 04/22/2014] [Indexed: 01/30/2023]
Abstract
UNLABELLED The efficacy of interventions used in real life for the treatment of osteoporosis has not been evaluated on a national basis. We analysed the database of the single Hungarian health care provider between 2004 and 2010. A marked reduction in fracture incidence and hospitalization was seen, which also proved to be cost-effective. INTRODUCTION Osteoporosis and its consequences place a significant burden on the health care systems of developed countries. Present therapeutic modalities are effective in reducing the risk of fractures caused by osteoporosis. However, we do not know whether the interventions introduced in the past 15 years have significantly reduced the number of osteoporotic fractures in real life, and if yes, how cost-effectively. METHODS The database of the National Health Insurance Fund Administration in Hungary was analysed for the period between 2004 and 2010. Two specific patient groups were identified within the population. Patients, who were under osteoporosis treatment in more than 80% of the potential treatment days in three consecutive years (patients with high compliance), were compared with patients where this ratio was under 20% (patients with low compliance). Several statistical comparative models were implemented in order to capture a complete picture on the differences. Because of natural data heterogeneity of administration databases, propensity matching was applied as well. RESULTS Comparing treated vs. control subjects, patients with high compliance showed a significant decrease in fracture risk and hospitalization, which was more robust after propensity adjustment. On the basis of the observed statistically significant differences, cost-effectiveness analysis was implemented. Utility loss due the observed fractures was compared with the total cost differences of the two arms based on modelling. Our calculations proved the cost-effectiveness of the long-term high compliance in real world settings. CONCLUSION Our findings infer that the standardized and uniform health care of osteoporotic patients in a country may reduce general fracture incidence and hospitalization in a cost-effective way.
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Affiliation(s)
- P Lakatos
- 1st Department of Medicine, Semmelweis University, Korányi u. 2/A, Budapest, 1083, Hungary
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Bárdi G, Molnár I, Somlyay I, Tóth E, Novák R, Hornyak A, Ughy P. EFFICACY OF ETHAMETSULFURON-METHYL HERBICIDE FORMULATION IN WINTER OILSEED RAPE WEED CONTROL IN HUNGARY. Commun Agric Appl Biol Sci 2014; 79:97-98. [PMID: 26084086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Hitre E, Budai B, Takácsi-Nagy Z, Rubovszky G, Tóth E, Remenár É, Polgár C, Láng I. Cetuximab and platinum-based chemoradio- or chemotherapy of patients with epidermal growth factor receptor expressing adenoid cystic carcinoma: a phase II trial. Br J Cancer 2013; 109:1117-22. [PMID: 23942070 PMCID: PMC3778310 DOI: 10.1038/bjc.2013.468] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [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: 05/09/2013] [Revised: 07/12/2013] [Accepted: 07/21/2013] [Indexed: 12/13/2022] Open
Abstract
Background: Epidermal growth factor receptor (EGFR) is highly expressed in adenoid cystic carcinoma (ACC). The efficacy and toxicity of cetuximab with concomitant platinum-based chemoradio- or chemotherapy in patients with locally advanced or metastatic ACC, respectively, was evaluated. Methods: Eligible patients (9 with locally advanced tumour and 12 with metastases) had positive tumour EGFR expression. The cetuximab loading dose (400 mg m−2) was followed by 250 mg m−2 per week. Locally advanced tumours were irradiated (mean dose 65 Gy) and treated with concomitant cisplatin (75 mg m−2, intravenously). Patients with metastases received concomitant cisplatin and 5-fluorouracil (4 × 1000 mg m−2). Results: For patients with locally advanced disease (median follow-up: 52 months), the median progression-free survival (PFS) was 64 months and the 2-year overall survival (OS) rate was 100%. For patients with metastases (median follow-up: 72 months), the median PFS and OS were 13 and 24 months, respectively. In both groups the objective response rate was >40%. Skin rash, in-field dermatitis, mucositis and vomiting were the most frequent grade 3/4 adverse events. Conclusion: In this single-arm study, the efficacy of cetuximab plus chemoradio- or chemotherapy appeared favourable as compared with historical controls. All side effects were manageable and did not hamper the treatment.
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Affiliation(s)
- E Hitre
- National Institute of Oncology, Ráth Gy. u. 7-9, 1122 Budapest, Hungary
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40
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Tóth E, Kulcsár PI, Fodor E, Ayaydin F, Kalmár L, Borsy AÉ, László L, Welker E. The highly conserved, N-terminal (RXXX)8 motif of mouse Shadoo mediates nuclear accumulation. Biochim Biophys Acta 2013; 1833:1199-211. [PMID: 23360978 DOI: 10.1016/j.bbamcr.2013.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 12/29/2012] [Accepted: 01/15/2013] [Indexed: 01/09/2023]
Abstract
The prion protein (PrP)-known for its central role in transmissible spongiform encephalopathies-has been reported to possess two nuclear localization signals and localize in the nuclei of certain cells in various forms. Although these data are superficially contradictory, it is apparent that nuclear forms of the prion protein can be found in cells in either the healthy or the diseased state. Here we report that Shadoo (Sho)-a member of the prion protein superfamily-is also found in the nucleus of several neural and non-neural cell lines as visualized by using an YFP-Sho construct. This nuclear localization is mediated by the (25-61) fragment of mouse Sho encompassing an (RXXX)8 motif. Bioinformatic analysis shows that the (RXXX)n motif (n=7-8) is a highly conserved and characteristic part of mammalian Shadoo proteins. Experiments to assess if Sho enters the nucleus by facilitated transport gave no decisive results: the inhibition of active processes that require energy in the cell, abolishes nuclear but not nucleolar accumulation. However, the (RXXX)8 motif is not able to mediate the nuclear transport of large fusion constructs exceeding the size limit of the nuclear pore for passive entry. Tracing the journey of various forms of Sho from translation to the nucleus and discerning the potential nuclear function of PrP and Sho requires further studies.
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Affiliation(s)
- E Tóth
- Institute of Biochemistry, Hungarian Academy of Sciences, Szeged, Hungary.
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Csoszi T, Safanda M, Mazur G, Mihaylov G, Benkoviová J, Tóth E. The Neutropenia Prophylaxis Evaluation Program in Patients Receiving Myelosuppressive Chemotherapy with Moderate or High Risk of Febrile Netropenia – an Interim Analysis of the Diepp Study. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34104-1] [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: 10/25/2022] Open
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Boguradzki P, Boér K, Cipková A, Wojciechowska-Lampka E, Schützová M, Ocvirk J, Tóth E. A Prospective Data Audit of the Management of Chemotherapy-Induced Anemia With Darbepoetin Alfa – the Apriori Study. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34106-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abstract
Fever is not the most frequent symptom in rheumatology; however, its occurrence always draws attention to a severe underlying pathologic process. The rheumatologic assessment of febrile patients usually takes place for three reasons: the patient's fever is associated with known rheumatic disease or musculoskeletal symptoms, or rheumatologic cause is suggested as the underlying cause of fever of unknown origin. The primary task of the rheumatologist is to rule out infections and autoimmune processes. In addition to the musculoskeletal and accompanying symptoms, the information about the course of fever and the observation of the continuity or periodicity of fever provide help to establish the diagnosis. A summarising discourse about this issue is rarely published in this speciality; therefore, we found it important to provide an overview of rheumatological diseases accompanied by fever.
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Affiliation(s)
- E Tóth
- Rheumatology Unit, Flór Ferenc Hospital, Kistarcsa, Hungary
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Sárváry E, Gerlei Z, Dinya E, Tóth E, Varga M, Chmel R, Molnar M, Remport A, Nemes B, Kobori L, Görög D, Fazakas J, Gaal I, Járay J, Perner F, Langer R. Hepatitis C infected hemodialysis and renal transplant patients with elevated α-glutathione S-transferase have increased risk for liver damage. Interv Med Appl Sci 2010. [DOI: 10.1556/imas.2.2010.2.5] [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: 11/19/2022] Open
Abstract
AbstractPatients on hemodialysis (HD) and renal transplant recipients (RT) have a high prevalence of HCV infection. Theaimof our study was to determine the prevalence of HCV-RNA in the anti-HCV positive patients and to compare the biochemical parameters of PCR(+) and PCR(−) subgroups.Methods:The 525 sera were screened for anti-HCV. HCV-RNA was detected by polymerase chain reaction (PCR) and liver enzymes [SGOT, SGPT, GGT,α-glutathione S-transferase (GST)] were measured.Results:Active viraemia was found only in 187 of 289 (65%) seropositive HD patients in contrast to 53 of 53 (100%) of seropositive RT patients. Significantly increased (p<0.05) GST values (9.9 μg/l) were found in the PCR(+) subgroups compared to GST levels (2.7 μg/l) of the PCR(−) subgroups. Elevated GST concentration was found in 80% (208/251) of PCR(+) patients. The measured enzymes were not elevated in HCV infected patients. Six percent of HD and 11% of RT patients were screened before seroconversion. Diagnostic sensitivity (80%) and specificity (79%) of GST were calculated as good for early liver damage caused by HCV. In contrast, the sensitivity of the measurement of other liver enzymes were very weak (SGOT: 8%; SGPT: 10%; GGT: 42%).Conclusion:The significantly higher viraemia of the RT subgroup could be related to the immunosuppressive therapy. Increased GST level may be a useful indicator of tissue damage during HCV infection. If HCV infection is suspected, PCR and GST measurement should be performed, even if anti-HCV result is negative.
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Affiliation(s)
- Enikő Sárváry
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
- 4 Transplantation and Surgical Clinic, Semmelweis University, Baross u. 23–25, H-1082, Budapest, Hungary
| | - Zs. Gerlei
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - E. Dinya
- 2 EGIS Pharmacenticals LTD., Budapest, Hungary
| | - E. Tóth
- 3 EUROCARE Dialysis Center, Békéscsaba, Hungary
| | - M. Varga
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - R. Chmel
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - M. Molnar
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - A. Remport
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - B. Nemes
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - L. Kobori
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - D. Görög
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - J. Fazakas
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - I. Gaal
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - J. Járay
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - F. Perner
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
| | - R. Langer
- 1 Semmelweis University Transplantation and Surgical Clinic, Budapest, Hungary
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Abstract
Molecular imaging is aimed at the noninvasive visualization of the expression and function of bioactive molecules that often represent specific molecular signatures in disease processes. Any molecular imaging procedure requires an imaging probe that is specific to a given molecular event, which puts an important emphasis on chemistry development. In MR imaging, the past years have witnessed significant advances in the design of molecular agents, though most of these efforts have not yet progressed to in vivo studies. In this review, we present some examples relevant to potential neurobiologic applications. Our aim was to show what chemistry can bring to the area of molecular MR imaging with a focus on the 2 main classes of imaging probes: Gd(3+)-based and PARACEST agents. We will discuss responsive probes for the detection of metal ions such as Ca, Zn, Fe, and Cu, pH, enzymatic activity, and oxygenation state.
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Affiliation(s)
- C S Bonnet
- Centre National de la Recherche Scientifique, Centre de Biophysique Moléculaire, Orléans, France
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Somos S, Tóth E, Loibl A, Sélley E, Csontos F, Szepes É, Grof P. Vaginalinfektionen und die lokale Immunantwort im Vaginalsekret: Vaginalinfections and the Local Immune Answer in Vaginal Fluid. Mycoses 2009. [DOI: 10.1111/j.1439-0507.1982.tb01971.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Vrzgula A, Bober J, Lukácová Z, Tóth E. [Laparoscopic proctocolectomy with ileal pouch-anal anastomosis]. Rozhl Chir 2008; 87:432-437. [PMID: 18988487] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Proctocolectomy with ileal pouch-anal anastomosis (restorative proctocolectomy) became a method of choice in surgical treatment of familial adenomatous polyposis (FAP) and ulcerative colitis (UC) during last years. The improvement of laparoscopic technique in colorectal surgery permit to perform this operation by miniinvasive approach. PATIENTS AND METHOD Authors present the informations about two patients (one with FAP and one with UC) in whom they perform the laparoscopic proctocolectomy with ileal pouch-anal anastomosis and protective loop ileostomy. RESULTS Although authors present their first experiences with corresponding operating time (390 and 360 minutes), they noticed hopeful postoperative period with quickly return of bowel movement, early return of oral intake and rapid reconvalescence. They observed one postoperative complication--wound infection. The longer postoperative hospital stay (17 and 19 days) may be related to the consistent management of protective ileostomy and precise postoperative follow-up. CONCLUSION Restorative proctocolectomy is possible to perform by miniinvasive approach having the adequate experiences with laparoscopic colorectal operations and open procedures for inflammatory bowel diseases. The more procedures experiences allow to consider the benefit of laparoscopic approach for patients.
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Affiliation(s)
- A Vrzgula
- I. chirurgická klinika LF UPJS a FNLP Kosice, Slovenská republika.
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Péntek M, Horváth C, Boncz I, Falusi Z, Tóth E, Sebestyén A, Májer I, Brodszky V, Gulácsi L. Epidemiology of osteoporosis related fractures in Hungary from the nationwide health insurance database, 1999-2003. Osteoporos Int 2008; 19:243-9. [PMID: 17701364 DOI: 10.1007/s00198-007-0453-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2007] [Accepted: 08/02/2007] [Indexed: 10/23/2022]
Abstract
UNLABELLED The Hungarian national health insurance database was screened for fractures of patients aged 50-100, 1999-2003. On average, there were 343 hip, 1,579 forearm, 342 proximal humerus, 48 inpatient vertebral and 2,459 other fractures/100,000 inhabitants/year. INTRODUCTION The incidence of fractures differs among populations. Our aim was to study the incidence of fractures in Hungary, focusing on classical osteoporotic sites and to compare the results with those of other European countries. METHODS The Hungarian National Health Insurance Fund database, covering 100% of the population, was screened for fractures of patients aged 50-100, 1999-2003. The search of vertebral fractures was restricted to those admitted to hospital. A gender and age-matched comparison was performed with available data from Europe. RESULTS There were mean 343 hip, 1,579 forearm, 342 proximal humerus, 48 inpatient vertebral and 2,459 other fractures/100,000 inhabitants/year; the female/male ratio was between 1.2-2.4. Multiple fractures occurred in 23.1% of the cases. Hip fracture incidence in Hungary lies between the rates of northern and southern countries of Europe. CONCLUSIONS Our study offers nationwide epidemiological data on fractures in Hungary. The incidence of fractures increased by age, regardless of the type of fracture. Incidence of hip fractures in Hungary fits in the previously established geographic trends in Europe. Our results fulfil a need for fracture data from Central Europe.
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Affiliation(s)
- M Péntek
- Rheumatology, Flór Ferenc County Hospital, Semmelweis tér 1, Kistarcsa 2143, Hungary.
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Schneider T, Tóth E, Matolcsy A, Molnár Z, Deák B, Várady E, Lakos M, Rosta A. P138 Change in prognosis due to differences in cellular origin of diffuse large B-cell lymphoma in response to R-CHOP therapy. Blood Rev 2007. [DOI: 10.1016/s0268-960x(07)70216-3] [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: 11/17/2022]
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50
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Illés A, Tóth E, Simon Z, Schneider T, Váradi E, Deák B, Rosta A, Keresztes K, Molnár Z. O55 Nodular lymphocyte-predominant Hodgkin's lymphoma (NLPHL): Clinicopathological characteristics and outcome of a rare entity. Blood Rev 2007. [DOI: 10.1016/s0268-960x(07)70070-x] [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: 11/26/2022]
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