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Kovács ZJ, Harami GM, Pálinkás J, Kuljanishvili N, Hegedüs J, Harami‐Papp H, Mahmudova L, Khamisi L, Szakács G, Kovács M. DNA-dependent phase separation by human SSB2 (NABP1/OBFC2A) protein points to adaptations to eukaryotic genome repair processes. Protein Sci 2024; 33:e4959. [PMID: 38511671 PMCID: PMC10955726 DOI: 10.1002/pro.4959] [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: 10/19/2023] [Revised: 02/04/2024] [Accepted: 02/21/2024] [Indexed: 03/22/2024]
Abstract
Single-stranded DNA binding proteins (SSBs) are ubiquitous across all domains of life and play essential roles via stabilizing and protecting single-stranded (ss) DNA as well as organizing multiprotein complexes during DNA replication, recombination, and repair. Two mammalian SSB paralogs (hSSB1 and hSSB2 in humans) were recently identified and shown to be involved in various genome maintenance processes. Following our recent discovery of the liquid-liquid phase separation (LLPS) propensity of Escherichia coli (Ec) SSB, here we show that hSSB2 also forms LLPS condensates under physiologically relevant ionic conditions. Similar to that seen for EcSSB, we demonstrate the essential contribution of hSSB2's C-terminal intrinsically disordered region (IDR) to condensate formation, and the selective enrichment of various genome metabolic proteins in hSSB2 condensates. However, in contrast to EcSSB-driven LLPS that is inhibited by ssDNA binding, hSSB2 phase separation requires single-stranded nucleic acid binding, and is especially facilitated by ssDNA. Our results reveal an evolutionarily conserved role for SSB-mediated LLPS in the spatiotemporal organization of genome maintenance complexes. At the same time, differential LLPS features of EcSSB and hSSB2 point to functional adaptations to prokaryotic versus eukaryotic genome metabolic contexts.
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Affiliation(s)
- Zoltán J. Kovács
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
- HUN‐REN–ELTE Motor Pharmacology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - Gábor M. Harami
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - János Pálinkás
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - Natalie Kuljanishvili
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - József Hegedüs
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - Hajnalka Harami‐Papp
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - Lamiya Mahmudova
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - Lana Khamisi
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
| | - Gergely Szakács
- HUN‐REN Institute of Molecular Life Sciences, Research Centre for Natural Sciences, Hungarian Academy of SciencesBudapestHungary
- Center for Cancer ResearchMedical University of ViennaWienAustria
| | - Mihály Kovács
- ELTE‐MTA “Momentum” Motor Enzymology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
- HUN‐REN–ELTE Motor Pharmacology Research Group, Department of BiochemistryEötvös Loránd UniversityBudapestHungary
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Vágvölgyi M, Laczkó D, Santa-Maria AR, Vigh JP, Walter FR, Berkecz R, Deli MA, Tóth G, Hunyadi A. 17-Oxime ethers of oxidized ecdysteroid derivatives modulate oxidative stress in human brain endothelial cells and dose-dependently might protect or damage the blood-brain barrier. PLoS One 2024; 19:e0290526. [PMID: 38386637 PMCID: PMC10883584 DOI: 10.1371/journal.pone.0290526] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/07/2024] [Indexed: 02/24/2024] Open
Abstract
20-Hydroxyecdysone and several of its oxidized derivatives exert cytoprotective effect in mammals including humans. Inspired by this bioactivity of ecdysteroids, in the current study it was our aim to prepare a set of sidechain-modified derivatives and to evaluate their potential to protect the blood-brain barrier (BBB) from oxidative stress. Six novel ecdysteroids, including an oxime and five oxime ethers, were obtained through regioselective synthesis from a sidechain-cleaved calonysterone derivative 2 and fully characterized by comprehensive NMR techniques revealing their complete 1H and 13C signal assignments. Surprisingly, several compounds sensitized hCMEC/D3 brain microvascular endothelial cells to tert-butyl hydroperoxide (tBHP)-induced oxidative damage as recorded by impedance measurements. Compound 8, containing a benzyloxime ether moiety in its sidechain, was the only one that exerted a protective effect at a higher, 10 μM concentration, while at lower (10 nM- 1 μM) concentrations it promoted tBHP-induced cellular damage. Brain endothelial cells were protected from tBHP-induced barrier integrity decrease by treatment with 10 μM of compound 8, which also mitigated the intracellular reactive oxygen species production elevated by tBHP. Based on our results, 17-oxime ethers of oxidized ecdysteroids modulate oxidative stress of the BBB in a way that may point towards unexpected toxicity. Further studies are needed to evaluate any possible risk connected to dietary ecdysteroid consumption and CNS pathologies in which BBB damage plays an important role.
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Affiliation(s)
- Máté Vágvölgyi
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Dávid Laczkó
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Ana Raquel Santa-Maria
- Institute of Biophysics, HUN-REN Biological Research Centre, Szeged, Hungary
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, United States of America
| | - Judit P. Vigh
- Institute of Biophysics, HUN-REN Biological Research Centre, Szeged, Hungary
- Doctoral School of Biology, University of Szeged, Szeged, Hungary
| | - Fruzsina R. Walter
- Institute of Biophysics, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Róbert Berkecz
- Institute of Pharmaceutical Analysis, University of Szeged, Szeged, Hungary
| | - Mária A. Deli
- Institute of Biophysics, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Gábor Tóth
- NMR Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Budapest, Hungary
| | - Attila Hunyadi
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, Szeged, Hungary
- HUN-REN-SZTE Biologically Active Natural Products Research Group, Szeged, Hungary
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Lang C, Megyesfalvi Z, Lantos A, Oberndorfer F, Hoda MA, Solta A, Ferencz B, Fillinger J, Solyom-Tisza A, Querner AS, Egger F, Boettiger K, Klikovits T, Timelthaler G, Renyi-Vamos F, Aigner C, Hoetzenecker K, Laszlo V, Schelch K, Dome B. C-Myc protein expression indicates unfavorable clinical outcome in surgically resected small cell lung cancer. World J Surg Oncol 2024; 22:57. [PMID: 38369463 PMCID: PMC10875875 DOI: 10.1186/s12957-024-03315-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/14/2024] [Indexed: 02/20/2024] Open
Abstract
BACKGROUND By being highly involved in the tumor evolution and disease progression of small cell lung cancer (SCLC), Myc family members (C-Myc, L-Myc, and N-Myc) might represent promising targetable molecules. Our aim was to investigate the expression pattern and prognostic relevance of these oncogenic proteins in an international cohort of surgically resected SCLC tumors. METHODS Clinicopathological data and surgically resected tissue specimens from 104 SCLC patients were collected from two collaborating European institutes. Tissue sections were stained by immunohistochemistry (IHC) for all three Myc family members and the recently introduced SCLC molecular subtype-markers (ASCL1, NEUROD1, POU2F3, and YAP1). RESULTS IHC analysis showed C-Myc, L-Myc, and N-Myc positivity in 48%, 63%, and 9% of the specimens, respectively. N-Myc positivity significantly correlated with the POU2F3-defined molecular subtype (r = 0.6913, p = 0.0056). SCLC patients with C-Myc positive tumors exhibited significantly worse overall survival (OS) (20 vs. 44 months compared to those with C-Myc negative tumors, p = 0.0176). Ultimately, in a multivariate risk model adjusted for clinicopathological and treatment confounders, positive C-Myc expression was confirmed as an independent prognosticator of impaired OS (HR 1.811, CI 95% 1.054-3.113, p = 0.032). CONCLUSIONS Our study provides insights into the clinical aspects of Myc family members in surgically resected SCLC tumors. Notably, besides showing that positivity of Myc family members varies across the patients, we also reveal that C-Myc protein expression independently correlates with worse survival outcomes. Further studies are warranted to investigate the role of Myc family members as potential prognostic and predictive markers in this hard-to-treat disease.
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Affiliation(s)
- Christian Lang
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
- Department of Medicine II, Division of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Zsolt Megyesfalvi
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria.
- National Korányi Institute of Pulmonology, Budapest, Hungary.
- Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, 1122, Hungary.
| | - Andras Lantos
- National Korányi Institute of Pulmonology, Budapest, Hungary
| | | | - Mir Alireza Hoda
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Anna Solta
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Bence Ferencz
- National Korányi Institute of Pulmonology, Budapest, Hungary
- Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, 1122, Hungary
| | - Janos Fillinger
- National Korányi Institute of Pulmonology, Budapest, Hungary
| | | | - Alessandro Saeed Querner
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Felix Egger
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Kristiina Boettiger
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Thomas Klikovits
- Department of Thoracic Surgery, Clinic Floridsdorf, Vienna, Austria
| | - Gerald Timelthaler
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Ferenc Renyi-Vamos
- National Korányi Institute of Pulmonology, Budapest, Hungary
- Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, 1122, Hungary
- National Institute of Oncology and National Tumor Biology Laboratory, Budapest, Hungary
| | - Clemens Aigner
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
| | - Viktoria Laszlo
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
- National Korányi Institute of Pulmonology, Budapest, Hungary
- Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, 1122, Hungary
| | - Karin Schelch
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Balazs Dome
- Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria.
- National Korányi Institute of Pulmonology, Budapest, Hungary.
- Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, 1122, Hungary.
- Department of Translational Medicine, Lund University, Lund, Sweden.
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Balog LE, Ahmed M, Holovachov O. Redescription of three pinworms of the genus Cephalobellus Cobb, 1920 (Nematoda: Oxyuridomorpha: Thelastomatidae) from scarab beetle grubs from Hungary. Syst Parasitol 2024; 101:21. [PMID: 38369578 PMCID: PMC10874908 DOI: 10.1007/s11230-023-10124-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/02/2023] [Indexed: 02/20/2024]
Abstract
Larvae of European rose chafer Cetonia aurata (Linnaeus, 1758) and cockchafer Melolontha sp. beetles were collected in Hungary for parasitological study. Intestinal examination revealed the presence of three well-known thelastomatid nematodes belonging to the genus Cephalobellus Cobb, 1920. We report for the first-time Cephalobellus cuspidatum (Rudolphi, 1814) Leibersperger, 1960, C. osmodermae Leibersperger, 1960, and C. potosiae Leibersperger, 1960 in Hungary, all found in scarab beetle larvae. Due to incomplete original descriptions, a comprehensive redescription with detailed morphological data is presented. Additionally, an identification key for closely related Cephalobellus, Thelastoma and Severianoia species infesting scarab beetles worldwide is provided. Newly generated 18S and 28S rDNA gene sequences of C. osmodermae place it as one of the early branches within Thelastomatidae.
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Affiliation(s)
- Luca Eszter Balog
- Doctoral School of Biology, Institute of Biology and Department of Systematic Zoology and Ecology, Eötvös Loránd University, Pázmány Péter sétány 1C, Budapest, 1117, Hungary
| | - Mohammed Ahmed
- Department of Zoology, Swedish Museum of Natural History, Box 50007, 104 05, Stockholm, Sweden
- Department of Evolution, Ecology and Behaviour, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7AB, UK
| | - Oleksandr Holovachov
- Department of Zoology, Swedish Museum of Natural History, Box 50007, 104 05, Stockholm, Sweden.
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Ahmed SHH, Tayeb BA, Gonda T, Girst G, Szőri K, Berkecz R, Zupkó I, Minorics R, Hunyadi A. Thymoquinone-protoflavone hybrid molecules as potential antitumor agents. PLoS One 2024; 19:e0291567. [PMID: 38271403 PMCID: PMC10810434 DOI: 10.1371/journal.pone.0291567] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
We describe herein the synthesis of eight new ester-coupled hybrid compounds from thymoquinone and protoflavone building blocks, and their bioactivity testing against multiple cancer cell lines. Among the hybrids, compound 14 showed promising activities in all cell lines studied. The highest activities were recorded against breast cancer cell lines with higher selectivity to MDA-MB-231 as compared to MCF-7. Even though the hybrids were found to be completely hydrolysed in 24 h under cell culture conditions, compound 14 demonstrated a ca. three times stronger activity against U-87 glioblastoma cells than a 1:1 mixture of its fragments. Further, compound 14 showed good tumour selectivity: it acted 4.4-times stronger on U-87 cells than on MRC-5 fibroblasts. This selectivity was much lower, only ca. 1.3-times, when the cells were co-treated with a 1:1 mixture of its non-coupled fragments. Protoflavone-thymoquinone hybrids may therefore serve as potential new antitumor leads particularly against glioblastoma.
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Affiliation(s)
- Sara H. H. Ahmed
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Bizhar A. Tayeb
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, Hungary
| | - Tímea Gonda
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Gábor Girst
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Kornél Szőri
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Róbert Berkecz
- Institute of Pharmaceutical Analysis, University of Szeged, Szeged, Hungary
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, Hungary
| | - Renáta Minorics
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, Hungary
| | - Attila Hunyadi
- Institute of Pharmacognosy, University of Szeged, Szeged, Hungary
- HUN-REN-SZTE Biologically Active Natural Products Research Group, Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, Szeged, Hungary
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Vághy MA, Otero-Muras I, Pájaro M, Szederkényi G. A Kinetic Finite Volume Discretization of the Multidimensional PIDE Model for Gene Regulatory Networks. Bull Math Biol 2024; 86:22. [PMID: 38253903 PMCID: PMC10803439 DOI: 10.1007/s11538-023-01251-3] [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: 04/21/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024]
Abstract
In this paper, a finite volume discretization scheme for partial integro-differential equations (PIDEs) describing the temporal evolution of protein distribution in gene regulatory networks is proposed. It is shown that the obtained set of ODEs can be formally represented as a compartmental kinetic system with a strongly connected reaction graph. This allows the application of the theory of nonnegative and compartmental systems for the qualitative analysis of the approximating dynamics. In this framework, it is straightforward to show the existence, uniqueness and stability of equilibria. Moreover, the computation of the stationary probability distribution can be traced back to the solution of linear equations. The discretization scheme is presented for one and multiple dimensional models separately. Illustrative computational examples show the precision of the approach, and good agreement with previous results in the literature.
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Affiliation(s)
- Mihály A Vághy
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50/a, Budapest, 1083, Hungary.
| | - Irene Otero-Muras
- Institute for Integrative Systems Biology, Spanish Council for Scientific Research, Carrer del Catedràtic Agustín Escardino Benlloch, 46980, Valencia, Spain
| | - Manuel Pájaro
- Department of Mathematics, Escola Superior de Enxeñaría Informática, University of Vigo, Campus Ourense, 32004, Ourense, Spain
| | - Gábor Szederkényi
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50/a, Budapest, 1083, Hungary
- Systems and Control Laboratory, ELKH Institute for Computer Science and Control (SZTAKI), Kende u. 13-17, Budapest, 1111, Hungary
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Abstract
The immortalized human renal proximal tubular epithelial cell line HK-2 is most commonly used to study renal cell physiology and human kidney diseases with tubulointerstitial fibrosis such as diabetic nephropathy, obstructive uropathy or allograft fibrosis. Epithelial-to-mesenchymal transition (EMT) is the main pathological process of tubulointerstitial fibrosis in vitro. Transforming growth factor-beta (TGF-β) is a key inducer of EMT. Several pro-fibrotic gene expression differences have been observed in a TGF-β-induced EMT model of HK-2 cells. However, growth conditions and medium formulations might greatly impact these differences. We investigated gene and protein expression of HK-2 cells cultured in six medium formulations. TGF-β1 increased the expression of ACTA2, TGFB1, COL4A1, EGR2, VIM and CTGF genes while reducing PPARG in all medium formulations. Interestingly, TGF-β1 treatment either increased or decreased EGR1, FN, IL6 and C3 gene expression, depending on medium formulations. The cell morphology was slightly affected, but immunoblots revealed TGFB1 and vimentin protein overexpression in all media. However, fibronectin expression as well as the nuclear translocation of EGR1 was medium dependent. In conclusion, our study demonstrates that, using the HK-2 in vitro model of EMT, the meticulous selection of appropriate cell culture medium formulation is essential to achieve reliable scientific results.
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Affiliation(s)
- Gantsetseg Garmaa
- Institute of Translational Medicine, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary
| | - Anna Manzéger
- Institute of Translational Medicine, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary
- International Nephrology Research and Training Center, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary
| | - Samaneh Haghighi
- Institute of Translational Medicine, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary
| | - Gábor Kökény
- Institute of Translational Medicine, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary.
- International Nephrology Research and Training Center, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary.
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Farkas A, Zsindely N, Nagy G, Kovács L, Deák P, Bodai L. The ubiquitin thioesterase YOD1 ameliorates mutant Huntingtin induced pathology in Drosophila. Sci Rep 2023; 13:21951. [PMID: 38081944 PMCID: PMC10713573 DOI: 10.1038/s41598-023-49241-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
Huntington's disease (HD) is a neurodegenerative disorder caused by a dominant gain-of-function mutation in the huntingtin gene, resulting in an elongated polyglutamine repeat in the mutant Huntingtin (mHtt) that mediates aberrant protein interactions. Previous studies implicated the ubiquitin-proteasome system in HD, suggesting that restoring cellular proteostasis might be a key element in suppressing pathology. We applied genetic interaction tests in a Drosophila model to ask whether modulating the levels of deubiquitinase enzymes affect HD pathology. By testing 32 deubiquitinase genes we found that overexpression of Yod1 ameliorated all analyzed phenotypes, including neurodegeneration, motor activity, viability, and longevity. Yod1 did not have a similar effect in amyloid beta overexpressing flies, suggesting that the observed effects might be specific to mHtt. Yod1 overexpression did not alter the number of mHtt aggregates but moderately increased the ratio of larger aggregates. Transcriptome analysis showed that Yod1 suppressed the transcriptional effects of mHtt and restored the expression of genes involved in neuronal plasticity, vesicular transport, antimicrobial defense, and protein synthesis, modifications, and clearance. Furthermore, Yod1 overexpression in HD flies leads to the upregulation of genes involved in transcriptional regulation and synaptic transmission, which might be part of a response mechanism to mHtt-induced stress.
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Affiliation(s)
- Anita Farkas
- Department of Biochemistry and Molecular Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary
- Doctoral School in Biology, Faculty of Science and Informatics, University of Szeged, 6726, Szeged, Hungary
| | - Nóra Zsindely
- Department of Biochemistry and Molecular Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary
- Department of Genetics, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary
| | - Gábor Nagy
- Department of Biochemistry and Molecular Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary
| | - Levente Kovács
- Department of Genetics, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary
- Divison of Biology and Biological Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, 91125, USA
| | - Péter Deák
- Department of Genetics, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary
| | - László Bodai
- Department of Biochemistry and Molecular Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, 6726, Szeged, Hungary.
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Ninausz N, Fehér P, Csányi E, Heltai M, Szabó L, Barta E, Kemenszky P, Sándor G, Jánoska F, Horváth M, Kusza S, Frank K, Varga L, Stéger V. White and other fur colourations and hybridization in golden jackals (Canis aureus) in the Carpathian basin. Sci Rep 2023; 13:21969. [PMID: 38082037 PMCID: PMC10713657 DOI: 10.1038/s41598-023-49265-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
The golden jackal (Canis aureus) is a reoccurring species in the centre of the Carpathian basin, in Hungary. In total, 31 golden jackal tissue samples were collected, from 8 white-coated, 2 black-coated and one mottled animal across Hungary. Sequences and fragment length polymorphisms were studied for white colour (MC1R), and for black coat colouration (CBD103). In each white animal, the most widespread mutation causing white fur colour in dogs in homozygous form was detected. Three animals were found to carry the mutation in heterozygous form. The two black golden jackals were heterozygous for the 3 bp deletion in CBD103 that mutation for black coat colouration in dogs, and one of them also carried the mutation causing white fur. None of the white animals showed signs of hybridization, but both the black and the mottled coloured individuals were found to be hybrids based on genetic testing. Kinship was found three times, twice between white animals, and once between a white animal and an agouti animal carrying the mutation of white coat. Our results confirm the findings that golden jackal-dog hybrids may occur without human intervention, and the detected mutation causing white fur colour in golden jackals could possibly be due to an early hybridization event.
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Affiliation(s)
- Nóra Ninausz
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Péter Fehér
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Erika Csányi
- Faculty of Forestry, University of Sopron, Sopron, Hungary
| | - Miklós Heltai
- Department of Wildlife Biology and Management, Institute of Wildlife Management and Nature Conservation, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - László Szabó
- Department of Wildlife Biology and Management, Institute of Wildlife Management and Nature Conservation, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Endre Barta
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | | | - Gyula Sándor
- Faculty of Forestry, University of Sopron, Sopron, Hungary
| | - Ferenc Jánoska
- Faculty of Forestry, University of Sopron, Sopron, Hungary
| | | | - Szilvia Kusza
- Centre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | | | - László Varga
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Viktor Stéger
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary.
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10
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Bokányi E, Vizi Z, Koltai J, Röst G, Karsai M. Real-time estimation of the effective reproduction number of COVID-19 from behavioral data. Sci Rep 2023; 13:21452. [PMID: 38052841 PMCID: PMC10698193 DOI: 10.1038/s41598-023-46418-z] [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: 01/27/2023] [Accepted: 10/31/2023] [Indexed: 12/07/2023] Open
Abstract
Monitoring the effective reproduction number [Formula: see text] of a rapidly unfolding pandemic in real-time is key to successful mitigation and prevention strategies. However, existing methods based on case numbers, hospital admissions or fatalities suffer from multiple measurement biases and temporal lags due to high test positivity rates or delays in symptom development or administrative reporting. Alternative methods such as web search and social media tracking are less directly indicating epidemic prevalence over time. We instead record age-stratified anonymous contact matrices at a daily resolution using a longitudinal online-offline survey in Hungary during the first two waves of the COVID-19 pandemic. This approach is innovative, cheap, and provides information in near real-time for estimating [Formula: see text] at a daily resolution. Moreover, it allows to complement traditional surveillance systems by signaling periods when official monitoring infrastructures are unreliable due to observational biases.
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Affiliation(s)
- Eszter Bokányi
- Institute of Logic, Language and Computation, University of Amsterdam, 1090GE, Amsterdam, The Netherlands
| | - Zsolt Vizi
- National Laboratory for Health Security, University of Szeged, Szeged, 6720, Hungary
| | - Júlia Koltai
- National Laboratory for Health Security, Centre for Social Sciences, Budapest, 1097, Hungary
- Faculty of Social Sciences, Eötvös Loránd University, Budapest, 1117, Hungary
| | - Gergely Röst
- National Laboratory for Health Security, University of Szeged, Szeged, 6720, Hungary
| | - Márton Karsai
- Department of Network and Data Science, Central European University, 1100, Vienna, Austria.
- National Laboratory for Health Security, Alfréd Rényi Institute of Mathematics, Budapest, 1053, Hungary.
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11
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Slézia A, Hegedüs P, Rusina E, Lengyel K, Solari N, Kaszas A, Balázsfi D, Botzanowski B, Acerbo E, Missey F, Williamson A, Hangya B. Behavioral, neural and ultrastructural alterations in a graded-dose 6-OHDA mouse model of early-stage Parkinson's disease. Sci Rep 2023; 13:19478. [PMID: 37945922 PMCID: PMC10636184 DOI: 10.1038/s41598-023-46576-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023] Open
Abstract
Studying animal models furthers our understanding of Parkinson's disease (PD) pathophysiology by providing tools to investigate detailed molecular, cellular and circuit functions. Different versions of the neurotoxin-based 6-hydroxydopamine (6-OHDA) model of PD have been widely used in rats. However, these models typically assess the result of extensive and definitive dopaminergic lesions that reflect a late stage of PD, leading to a paucity of studies and a consequential gap of knowledge regarding initial stages, in which early interventions would be possible. Additionally, the better availability of genetic tools increasingly shifts the focus of research from rats to mice, but few mouse PD models are available yet. To address these, we characterize here the behavioral, neuronal and ultrastructural features of a graded-dose unilateral, single-injection, striatal 6-OHDA model in mice, focusing on early-stage changes within the first two weeks of lesion induction. We observed early onset, dose-dependent impairments of overall locomotion without substantial deterioration of motor coordination. In accordance, histological evaluation demonstrated a partial, dose-dependent loss of dopaminergic neurons of substantia nigra pars compacta (SNc). Furthermore, electron microscopic analysis revealed degenerative ultrastructural changes in SNc dopaminergic neurons. Our results show that mild ultrastructural and cellular degradation of dopaminergic neurons of the SNc can lead to certain motor deficits shortly after unilateral striatal lesions, suggesting that a unilateral dose-dependent intrastriatal 6-OHDA lesion protocol can serve as a successful model of the early stages of Parkinson's disease in mice.
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Affiliation(s)
- Andrea Slézia
- Institute of Experimental Medicine, Lendület Laboratory of Systems Neuroscience, Budapest, Hungary.
- Institut de Neurosciences Des Systèmes, INSERM UMR S 1106, Aix-Marseille Université, Marseille, France.
- Institute of Cognitive Neuroscience and Psychology, Eotvos Lorand Research Network, Budapest, Hungary.
- Institut de Neurosciences de la Timone, CNRS UMR 7289, Aix-Marseille Université, Marseille, France.
| | - Panna Hegedüs
- Institute of Experimental Medicine, Lendület Laboratory of Systems Neuroscience, Budapest, Hungary
- János Szentágothai Doctoral School of Neurosciences, Semmelweis University, Budapest, Hungary
| | - Evgeniia Rusina
- Institut de Neurosciences Des Systèmes, INSERM UMR S 1106, Aix-Marseille Université, Marseille, France
| | - Katalin Lengyel
- Institute of Experimental Medicine, Lendület Laboratory of Systems Neuroscience, Budapest, Hungary
| | - Nicola Solari
- Institute of Experimental Medicine, Lendület Laboratory of Systems Neuroscience, Budapest, Hungary
| | - Attila Kaszas
- Institut de Neurosciences de la Timone, CNRS UMR 7289, Aix-Marseille Université, Marseille, France
| | - Diána Balázsfi
- Institute of Experimental Medicine, Lendület Laboratory of Systems Neuroscience, Budapest, Hungary
| | - Boris Botzanowski
- Institut de Neurosciences Des Systèmes, INSERM UMR S 1106, Aix-Marseille Université, Marseille, France
| | - Emma Acerbo
- Institut de Neurosciences Des Systèmes, INSERM UMR S 1106, Aix-Marseille Université, Marseille, France
| | - Florian Missey
- Institut de Neurosciences Des Systèmes, INSERM UMR S 1106, Aix-Marseille Université, Marseille, France
| | - Adam Williamson
- Institut de Neurosciences Des Systèmes, INSERM UMR S 1106, Aix-Marseille Université, Marseille, France.
- International Clinical Research Center (ICRC), St. Anne's University Hospital, Brno, Czech Republic.
| | - Balázs Hangya
- Institute of Experimental Medicine, Lendület Laboratory of Systems Neuroscience, Budapest, Hungary.
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12
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Kollerits E, Zsila Á, Matuszka B. Quality of life, social support, and adherence in female patients with thyroid disorders. BMC Womens Health 2023; 23:567. [PMID: 37919706 PMCID: PMC10623692 DOI: 10.1186/s12905-023-02718-0] [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: 11/16/2022] [Accepted: 10/17/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND According to the 2010 European Health Interview Survey, 51% of women in Hungary have a chronic disease, and is among the poorest quartile in the EU countries. Thyroid diseases affected more than 650,000 women in 2021 based on a recent report by the Hungarian Central Statistical Office. Despite the high prevalence rates, quality of life in these patients is scarcely researched in Hungary. To fill this gap, this study aims to explore the associations of the quality of life of thyroid patients in Hungary with social support and adherence. METHODS A cross-sectional study was conducted via an online questionnaire. Data from 885 female Hungarian thyroid patients with pharmacological treatment (M = 35.6 years, SD = 10.7, age range: 18-73 years) were analyzed. Participants were divided into two patient groups based on the type of thyroid disorder: hypothyroidism (n = 824; 93.1%) and hyperthyroidism (n = 61; 6.9%). Group comparisons, correlations, and a mediation model were performed to explore differences between thyroid patients. RESULTS No differences were found between patients with different types of thyroid disorders in quality of life, adherence, and social support. Consistent, weak associations were found between quality of life and social support in both patient groups. Higher perceived social support partially explained the relationship between adherence and life quality in thyroid patients. CONCLUSIONS: No substantial differences were found between patients with different types of thyroid disease in mental well-being indicators. These patients are psychologically more vulnerable and need a socially supportive environment to recover, because higher adherence is associated with a better quality of life, and social support can facilitate this process.
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Affiliation(s)
- Eliza Kollerits
- ELTE Doctoral School of Psychology, Kazinczy u. 23-27, Budapest, 1075, Hungary.
- ELTE Institute of Psychology, Kazinczy u. 23-27, Budapest, 1075, Hungary.
- Institute of Psychology, Pázmány Péter Catholic University, Mikszáth Kálmán tér 1., Budapest, 1088, Hungary.
| | - Ágnes Zsila
- ELTE Institute of Psychology, Kazinczy u. 23-27, Budapest, 1075, Hungary
- Institute of Psychology, Pázmány Péter Catholic University, Mikszáth Kálmán tér 1., Budapest, 1088, Hungary
| | - Balázs Matuszka
- Institute of Psychology, Pázmány Péter Catholic University, Mikszáth Kálmán tér 1., Budapest, 1088, Hungary
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13
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Szöllősi D, Hajdrik P, Tordai H, Horváth I, Veres DS, Gillich B, Shailaja KD, Smeller L, Bergmann R, Bachmann M, Mihály J, Gaál A, Jezsó B, Barátki B, Kövesdi D, Bősze S, Szabó I, Felföldi T, Oszwald E, Padmanabhan P, Gulyás BZ, Hamdani N, Máthé D, Varga Z, Szigeti K. Molecular imaging of bacterial outer membrane vesicles based on bacterial surface display. Sci Rep 2023; 13:18752. [PMID: 37907509 PMCID: PMC10618197 DOI: 10.1038/s41598-023-45628-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/21/2023] [Indexed: 11/02/2023] Open
Abstract
The important roles of bacterial outer membrane vesicles (OMVs) in various diseases and their emergence as a promising platform for vaccine development and targeted drug delivery necessitates the development of imaging techniques suitable for quantifying their biodistribution with high precision. To address this requirement, we aimed to develop an OMV specific radiolabeling technique for positron emission tomography (PET). A novel bacterial strain (E. coli BL21(DE3) ΔnlpI, ΔlpxM) was created for efficient OMV production, and OMVs were characterized using various methods. SpyCatcher was anchored to the OMV outer membrane using autotransporter-based surface display systems. Synthetic SpyTag-NODAGA conjugates were tested for OMV surface binding and 64Cu labeling efficiency. The final labeling protocol shows a radiochemical purity of 100% with a ~ 29% radiolabeling efficiency and excellent serum stability. The in vivo biodistribution of OMVs labeled with 64Cu was determined in mice using PET/MRI imaging which revealed that the biodistribution of radiolabeled OMVs in mice is characteristic of previously reported data with the highest organ uptakes corresponding to the liver and spleen 3, 6, and 12 h following intravenous administration. This novel method can serve as a basis for a general OMV radiolabeling scheme and could be used in vaccine- and drug-carrier development based on bioengineered OMVs.
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Affiliation(s)
- Dávid Szöllősi
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Polett Hajdrik
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Hedvig Tordai
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Ildikó Horváth
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Dániel S Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Bernadett Gillich
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Kanni Das Shailaja
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - László Smeller
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Ralf Bergmann
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
- Institute for Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, 400 Bautzner Landstraße, 01328, Dresden, Germany
| | - Michael Bachmann
- Institute for Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, 400 Bautzner Landstraße, 01328, Dresden, Germany
| | - Judith Mihály
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, 2 Magyar Tudósok Körútja, Budapest, 1117, Hungary
| | - Anikó Gaál
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, 2 Magyar Tudósok Körútja, Budapest, 1117, Hungary
| | - Bálint Jezsó
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, 2 Magyar Tudósok Körútja, Budapest, 1117, Hungary
- Doctoral School of Biology and Institute of Biology, Eötvös Loránd University, 1/C Pázmány Péter Sétány, Budapest, 1117, Hungary
| | - Balázs Barátki
- Department of Immunology, ELTE Eötvös Loránd University, 1/C Pázmány Péter Sétány, Budapest, 1117, Hungary
| | - Dorottya Kövesdi
- Department of Immunology, ELTE Eötvös Loránd University, 1/C Pázmány Péter Sétány, Budapest, 1117, Hungary
- MTA-ELTE Complement Research Group, Eötvös Loránd Research Network (ELKH), 1/A Pázmány Péter Sétány, Budapest, 1117, Hungary
| | - Szilvia Bősze
- ELKH-ELTE Research Group of Peptide Chemistry, Eötvös L. Research Network, Eötvös L. University, 1/A Pázmány Péter Sétány, Budapest, 1117, Hungary
| | - Ildikó Szabó
- ELKH-ELTE Research Group of Peptide Chemistry, Eötvös L. Research Network, Eötvös L. University, 1/A Pázmány Péter Sétány, Budapest, 1117, Hungary
| | - Tamás Felföldi
- Department of Microbiology, ELTE Eötvös Loránd University, 1/C Pázmány Péter Sétány, Budapest, 1117, Hungary
- Centre for Ecological Research, Institute of Aquatic Ecology, 29 Karolina Road, Budapest, 1113, Hungary
| | - Erzsébet Oszwald
- Department of Anatomy, Histology, and Embryology, Semmelweis University, 58 Tűzoltó Street, Budapest, 1094, Hungary
| | - Parasuraman Padmanabhan
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, Singapore, 30823, Singapore
- Cognitive Neuroimaging Centre, Nanyang Technological University, 59 Nanyang Drive, Singapore, 636921, Singapore
| | - Balázs Zoltán Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, Singapore, 30823, Singapore
- Cognitive Neuroimaging Centre, Nanyang Technological University, 59 Nanyang Drive, Singapore, 636921, Singapore
| | - Nazha Hamdani
- Department of Cellular and Translational Physiology, Institute of Physiology, Ruhr University Bochum, 44801, Bochum, Germany
- HCEMM-Cardiovascular Research Group, Department of Pharmacology and Pharmacotherapy, University of Budapest, Budapest, 1089, Hungary
| | - Domokos Máthé
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
- CROmed Translational Research Centers, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
- In Vivo Imaging Advanced Core Facility, Hungarian Center of Excellence for Molecular Medicine (HCEMM), 37-47 Tűzoltó Street, Budapest, 1094, Hungary
| | - Zoltán Varga
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, 2 Magyar Tudósok Körútja, Budapest, 1117, Hungary
| | - Krisztián Szigeti
- Department of Biophysics and Radiation Biology, Semmelweis University, 37-47 Tűzoltó Street, Budapest, 1094, Hungary.
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14
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Matuz A, Darnai G, Zsidó AN, Janszky J, Csathó Á. Structural neural correlates of mental fatigue and reward-induced improvement in performance. Biol Futur 2023:10.1007/s42977-023-00187-y. [PMID: 37889452 DOI: 10.1007/s42977-023-00187-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/06/2023] [Indexed: 10/28/2023]
Abstract
Neuroimaging studies investigating the association between mental fatigue (henceforth fatigue) and brain physiology have identified many brain regions that may underly the cognitive changes induced by fatigue. These studies focused on the functional changes and functional connectivity of the brain relating to fatigue. The structural correlates of fatigue, however, have received little attention. To fill this gap, this study explored the associations of fatigue with cortical thickness of frontal and parietal regions. In addition, we aimed to explore the associations between reward-induced improvement in performance and neuroanatomical markers in fatigued individuals. Thirty-nine healthy volunteers performed the psychomotor vigilance task for 15 min (i.e., 3 time-on-task blocks of 5 min) out of scanner; followed by an additional rewarded block of the task lasting 5 min. Baseline high-resolution T1-weigthed MR images were obtained. Reaction time increased with time-on-task but got faster again in the rewarded block. Participants' subjective fatigue increased during task performance. In addition, we found that higher increase in subjective mental fatigue was associated with the cortical thickness of the following areas: bilateral precuneus, right precentral gyrus; right pars triangularis and left superior frontal gyrus. Our results suggest that individual differences in subjective mental fatigue may be explained by differences in the degree of cortical thickness of areas that are associated with motor processes, executive functions, intrinsic alertness and are parts of the default mode network.
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Affiliation(s)
- András Matuz
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary.
- Szentágothai Research Centre, University of Pécs, Pécs, Hungary.
| | - Gergely Darnai
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
- Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Department of Neurology, Medical School, University of Pécs, Szigeti Str. 12, Pécs, 7624, Hungary
| | - András N Zsidó
- Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institute of Psychology, Faculty of Humanities, University of Pécs, Pécs, Hungary
| | - József Janszky
- Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Department of Neurology, Medical School, University of Pécs, Szigeti Str. 12, Pécs, 7624, Hungary
- ELKH-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Árpád Csathó
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
- Szentágothai Research Centre, University of Pécs, Pécs, Hungary
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15
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Pongrácz P, Dobos P, Faragó T, Kubinyi E, Lenkei R. Body size awareness matters when dogs decide whether to detour an obstacle or opt for a shortcut. Sci Rep 2023; 13:17899. [PMID: 37857698 PMCID: PMC10587091 DOI: 10.1038/s41598-023-45241-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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 10/17/2023] [Indexed: 10/21/2023] Open
Abstract
Body-awareness is one of the fundamental modules of self-representation. We investigated how body-awareness could contribute to dogs' decision making in a novel spatial problem where multiple solutions are possible. Family dogs (N = 68) had to obtain a treat from behind a transparent fence. They had two options: either detour around the fence (7 m), or take a shortcut through a doorway (2 m). We had three conditions: small door open, large door open, and doors closed. Our results indicated that dogs assess the size of the doorway, and if they find it too small, they decide to detour instead, while in the case of the open large door, they rather opted for the shortcut without hesitation. Shorter headed dogs tended to choose open doors more often, while longer headed dogs rather chose detours, probably because of their better peripheral vision. While body size awareness did not manifest differently in dogs with short or long heads, we showed for the first time a connection between head shape and physical cognition in dogs. We showed that dogs rely on their body-awareness in a naturalistic setting where multiple solutions exist simultaneously. Dogs make decisions without lengthy trial-and-error learning and choose between options based on their body-awareness.
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Affiliation(s)
- Péter Pongrácz
- Department of Ethology, Institute of Biology, Eötvös Loránd University, Pázmány Péter Sétány 1/C, 1117, Budapest, Hungary.
| | - Petra Dobos
- Department of Ethology, Institute of Biology, Eötvös Loránd University, Pázmány Péter Sétány 1/C, 1117, Budapest, Hungary
| | - Tamás Faragó
- MTA-ELTE Lendület "Momentum" Companion Animal Research Group, Budapest, Hungary
- Department of Ethology, Neuroethology of Communication Lab, Budapest, Hungary
| | - Enikő Kubinyi
- Department of Ethology, Institute of Biology, Eötvös Loránd University, Pázmány Péter Sétány 1/C, 1117, Budapest, Hungary
- MTA-ELTE Lendület "Momentum" Companion Animal Research Group, Budapest, Hungary
| | - Rita Lenkei
- Department of Ethology, Institute of Biology, Eötvös Loránd University, Pázmány Péter Sétány 1/C, 1117, Budapest, Hungary
- MTA-ELTE Lendület "Momentum" Companion Animal Research Group, Budapest, Hungary
- Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Budapest, Hungary
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16
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Zámbó D, Kovács D, Südi G, Zolnai Z, Deák A. Composite ligand shells on gold nanoprisms - an ensemble and single particle study. RSC Adv 2023; 13:30696-30703. [PMID: 37869380 PMCID: PMC10585614 DOI: 10.1039/d3ra05548e] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023] Open
Abstract
The attachment of thiolated molecules onto gold surfaces is one of the most extensively used and robust ligand exchange approaches to exploit the nanooptical features of nanoscale and nanostructured plasmonic materials. In this work, the impact of thiol adsorption on the optical properties of wet-chemically synthesized gold nanoprisms is studied both at the ensemble and single particle level to investigate the build-up of more complex ligand layers. Two prototypical ligands with different lengths have been investigated ((16-mercaptohexadecyl)trimethylammonium bromide - MTAB and thiolated polyethylene glycol - mPEG-SH). From ensemble experiments it is found that composite ligand layers are obtained by the sequential addition of the two thiols, and an island-like surface accumulation of the molecules can be anticipated. The single particle experiment derived chemical interface damping and resonance energy changes further support this and show additionally that when the two thiols are used simultaneously, a higher density, intermixed layer is formed. Hence, when working with more than a single type of ligand during surface modification, sequential adsorption is preferred for the combination of accessible essential surface functionalities, whereas for high overall loading the simultaneous use of the different ligand types is favourable.
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Affiliation(s)
- Dániel Zámbó
- Centre for Energy Research Konkoly-ThegeM. Str. 29-33 Budapest 1121 Hungary
| | - Dávid Kovács
- Centre for Energy Research Konkoly-ThegeM. Str. 29-33 Budapest 1121 Hungary
- Budapest University of Technology and Economics, Department of Physical Chemistry and Materials Science Budafoki Str. 6-8 Budapest 1117 Hungary
| | - Gergely Südi
- Centre for Energy Research Konkoly-ThegeM. Str. 29-33 Budapest 1121 Hungary
- Budapest University of Technology and Economics, Department of Physical Chemistry and Materials Science Budafoki Str. 6-8 Budapest 1117 Hungary
| | - Zsolt Zolnai
- Centre for Energy Research Konkoly-ThegeM. Str. 29-33 Budapest 1121 Hungary
| | - András Deák
- Centre for Energy Research Konkoly-ThegeM. Str. 29-33 Budapest 1121 Hungary
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17
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Levai E, Marinovic I, Bartosova M, Zhang C, Schaefer B, Jenei H, Du Z, Drozdz D, Klaus G, Arbeiter K, Romero P, Schwenger V, Schwab C, Szabo AJ, Zarogiannis SG, Schmitt CP. Human peritoneal tight junction, transporter and channel expression in health and kidney failure, and associated solute transport. Sci Rep 2023; 13:17429. [PMID: 37833387 PMCID: PMC10575882 DOI: 10.1038/s41598-023-44466-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 10/09/2023] [Indexed: 10/15/2023] Open
Abstract
Next to the skin, the peritoneum is the largest human organ, essentially involved in abdominal health and disease states, but information on peritoneal paracellular tight junctions and transcellular channels and transporters relative to peritoneal transmembrane transport is scant. We studied their peritoneal localization and quantity by immunohistochemistry and confocal microscopy in health, in chronic kidney disease (CKD) and on peritoneal dialysis (PD), with the latter allowing for functional characterizations, in a total of 93 individuals (0-75 years). Claudin-1 to -5, and -15, zonula occludens-1, occludin and tricellulin, SGLT1, PiT1/SLC20A1 and ENaC were consistently detected in mesothelial and arteriolar endothelial cells, with age dependent differences for mesothelial claudin-1 and arteriolar claudin-2/3. In CKD mesothelial claudin-1 and arteriolar claudin-2 and -3 were more abundant. Peritonea from PD patients exhibited increased mesothelial and arteriolar claudin-1 and mesothelial claudin-2 abundance and reduced mesothelial and arteriolar claudin-3 and arteriolar ENaC. Transperitoneal creatinine and glucose transport correlated with pore forming arteriolar claudin-2 and mesothelial claudin-4/-15, and creatinine transport with mesothelial sodium/phosphate cotransporter PiT1/SLC20A1. In multivariable analysis, claudin-2 independently predicted the peritoneal transport rates. In conclusion, tight junction, transcellular transporter and channel proteins are consistently expressed in peritoneal mesothelial and endothelial cells with minor variations across age groups, specific modifications by CKD and PD and distinct associations with transperitoneal creatinine and glucose transport rates. The latter deserve experimental studies to demonstrate mechanistic links.Clinical Trial registration: The study was performed according to the Declaration of Helsinki and is registered at www.clinicaltrials.gov (NCT01893710).
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Affiliation(s)
- Eszter Levai
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
- Pediatric Center, MTA Center of Excellence, Semmelweis University, Budapest, Hungary
- HUNREN SE Pediatrics and Nephrology Research Group, Budapest, Hungary
| | - Iva Marinovic
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Maria Bartosova
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Conghui Zhang
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Betti Schaefer
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Hanna Jenei
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Zhiwei Du
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
| | - Dorota Drozdz
- Jagiellonian University Medical College, Krakow, Poland
| | | | - Klaus Arbeiter
- Department of Pediatrics and Adolescent Medicine, Medical University Vienna, Vienna, Austria
| | - Philipp Romero
- Division of Pediatric Surgery, Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Vedat Schwenger
- Department of Nephrology, Klinikum der Landeshauptstadt Stuttgart, Stuttgart, Germany
| | | | - Attila J Szabo
- Pediatric Center, MTA Center of Excellence, Semmelweis University, Budapest, Hungary
- HUNREN SE Pediatrics and Nephrology Research Group, Budapest, Hungary
| | - Sotirios G Zarogiannis
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany
- Department of Physiology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Claus Peter Schmitt
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany.
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18
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Faakye J, Nyúl-Tóth Á, Gulej R, Csik B, Tarantini S, Shanmugarama S, Prodan C, Mukli P, Yabluchanskiy A, Conley S, Toth P, Csiszar A, Ungvari Z. Imaging the time course, morphology, neuronal tissue compression, and resolution of cerebral microhemorrhages in mice using intravital two-photon microscopy: insights into arteriolar, capillary, and venular origin. GeroScience 2023; 45:2851-2872. [PMID: 37338779 PMCID: PMC10643488 DOI: 10.1007/s11357-023-00839-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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 05/24/2023] [Indexed: 06/21/2023] Open
Abstract
Cerebral microhemorrhages (CMHs, microbleeds), a manifestation of age-related cerebral small vessel disease, contribute to the pathogenesis of cognitive decline and dementia in older adults. Histological studies have revealed that CMHs exhibit distinct morphologies, which may be attributed to differences in intravascular pressure and the size of the vessels of origin. Our study aimed to establish a direct relationship between the size/morphology of CMHs and the size/anatomy of the microvessel of origin. To achieve this goal, we adapted and optimized intravital two-photon microscopy-based imaging methods to monitor the development of CMHs in mice equipped with a chronic cranial window upon high-energy laser light-induced photodisruption of a targeted cortical arteriole, capillary, or venule. We assessed the time course of extravasation of fluorescently labeled blood and determined the morphology and size/volume of the induced CMHs. Our findings reveal striking similarities between the bleed morphologies observed in hypertension-induced CMHs in models of aging and those originating from different targeted vessels via multiphoton laser ablation. Arteriolar bleeds, which are larger (> 100 μm) and more widely dispersed, are distinguished from venular bleeds, which are smaller and exhibit a distinct diffuse morphology. Capillary bleeds are circular and smaller (< 10 μm) in size. Our study supports the concept that CMHs can occur at any location in the vascular tree, and that each type of vessel produces microbleeds with a distinct morphology. Development of CMHs resulted in immediate constriction of capillaries, likely due to pericyte activation and constriction of precapillary arterioles. Additionally, tissue displacement observed in association with arteriolar CMHs suggests that they can affect an area with a radius of ~ 50 μm to ~ 100 μm, creating an area at risk for ischemia. Longitudinal imaging of CMHs allowed us to visualize reactive astrocytosis and bleed resolution during a 30-day period. Our study provides new insights into the development and morphology of CMHs, highlighting the potential clinical implications of differentiating between the types of vessels involved in the pathogenesis of CMHs. This information may help in the development of targeted interventions aimed at reducing the risk of cerebral small vessel disease-related cognitive decline and dementia in older adults.
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Affiliation(s)
- Janet Faakye
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Ádám Nyúl-Tóth
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary.
| | - Rafal Gulej
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Boglarka Csik
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Stefano Tarantini
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
| | - Santny Shanmugarama
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Calin Prodan
- Veterans Affairs Medical Center, Oklahoma City, OK, USA
- Department of Neurology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Peter Mukli
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Andriy Yabluchanskiy
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Shannon Conley
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Peter Toth
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Neurosurgery, Medical School, University of Pecs, Pecs, Hungary
| | - Anna Csiszar
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Zoltan Ungvari
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary.
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA.
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19
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Mészáros Á, Molnár K, Fazakas C, Nógrádi B, Lüvi A, Dudás T, Tiszlavicz L, Farkas AE, Krizbai IA, Wilhelm I. Inflammasome activation in peritumoral astrocytes is a key player in breast cancer brain metastasis development. Acta Neuropathol Commun 2023; 11:155. [PMID: 37749707 PMCID: PMC10521486 DOI: 10.1186/s40478-023-01646-2] [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: 07/06/2023] [Accepted: 08/27/2023] [Indexed: 09/27/2023] Open
Abstract
Inflammasomes, primarily responsible for the activation of IL-1β, have emerged as critical regulators of the tumor microenvironment. By using in vivo and in vitro brain metastasis models, as well as human samples to study the role of the NLRP3 inflammasome in triple-negative breast cancer (TNBC) brain metastases, we found NLRP3 inflammasome components and IL-1β to be highly and specifically expressed in peritumoral astrocytes. Soluble factors from TNBC cells induced upregulation and activation of NLRP3 and IL-1β in astrocytes, while astrocyte-derived mediators augmented the proliferation of metastatic cells. In addition, inhibition of NLRP3 inflammasome activity using MCC950 or dampening the downstream effect of IL-1β prevented the proliferation increase in cancer cells. In vivo, MCC950 reduced IL-1β expression in peritumoral astrocytes, as well as the levels of inflammasome components and active IL-1β. Most importantly, significantly retarded growth of brain metastatic tumors was observed in mice treated with MCC950. Overall, astrocytes contribute to TNBC progression in the brain through activation of the NLRP3 inflammasome and consequent IL-1β release. We conclude that pharmacological targeting of inflammasomes may become a novel strategy in controlling brain metastatic diseases.
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Affiliation(s)
- Ádám Mészáros
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
- Doctoral School of Biology, University of Szeged, Szeged, Hungary
| | - Kinga Molnár
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
| | - Csilla Fazakas
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
| | - Bernát Nógrádi
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
- Department of Neurology, University of Szeged, Szeged, Hungary
| | - Adél Lüvi
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
| | - Tamás Dudás
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
- Theoretical Medicine Doctoral School, University of Szeged, Szeged, Hungary
| | | | - Attila Elek Farkas
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary
| | - István Adorján Krizbai
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary.
- Institute of Life Sciences, Vasile Goldiş Western University of Arad, Arad, Romania.
| | - Imola Wilhelm
- Institute of Biophysics, Biological Research Centre, ELKH (Eötvös Loránd Research Network), Temesvári Krt. 62, 6726, Szeged, Hungary.
- Institute of Life Sciences, Vasile Goldiş Western University of Arad, Arad, Romania.
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20
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Zakariás L, Lukács Á. The first aphasia screening test in Hungarian: A preliminary study on validity and diagnostic accuracy. PLoS One 2023; 18:e0290153. [PMID: 37590258 PMCID: PMC10434950 DOI: 10.1371/journal.pone.0290153] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/02/2023] [Indexed: 08/19/2023] Open
Abstract
The Hungarian Aphasia Screening Test (HAST) is a newly developed diagnostic tool for detecting post-stroke aphasia in clinical settings, and for differentiating between stroke patients with and without aphasia. The HAST was developed by our team and has not been published in English yet. In Hungarian, to date, there is no aphasia screening test with reported psychometric properties available. This study aims to present the main characteristics of the HAST and to evaluate its validity, internal consistency, and diagnostic accuracy. The HAST comprises five subtests (maximum score: 20) and takes 5-10 minutes to administer. We administered the HAST to 40 stroke patients with aphasia, 26 stroke patients without aphasia, and 51 healthy control participants to evaluate the test's construct validity, convergent validity, and internal consistency, as well as its sensitivity and specificity. We used the Western Aphasia Battery (WAB) as a reference test. With a cut-off score of 17, the HAST showed high diagnostic accuracy (sensitivity: 92.5%, specificity: 88.5%). Its construct validity was good; we identified one component in the test, and moderate-to-strong positive correlations across most of its subtests (mean Spearman r = 0.56). Convergent validity of the HAST was satisfying, reflected by the moderate-to-strong positive correlations between subtests of the HAST and subtests of the WAB (Spearman r = 0.50-0.86). The correlation between the HAST total score and the WAB aphasia quotient was high (Spearman r = 0.86). Despite the small number of items within tasks, all subtests showed acceptable internal consistency (mean Cronbach's α = 0.74). Our preliminary results suggest that the HAST is a valid, accurate, and clinically feasible test to detect post-stroke aphasia and to identify patients who require a more detailed assessment of their language skills. In addition, it reliably identifies not only the presence but also the severity of aphasia, thus, it might be a good candidate for monitoring patient progress.
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Affiliation(s)
- Lilla Zakariás
- Bárczi Gusztáv Faculty of Special Needs Education, Eötvös Loránd University, Budapest, Hungary
- Faculty of Humanities, Eötvös Loránd University, Budapest, Hungary
- National Institute of Locomotor Diseases and Disabilities/National Institute for Medical Rehabilitation, Budapest, Hungary
| | - Ágnes Lukács
- Department of Cognitive Science, Budapest University of Technology and Economics, Budapest, Hungary
- MTA-BME Momentum Language Acquisition Research Group, Eötvös Loránd Research Network (ELKH), Budapest, Hungary
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21
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Ragó Z, Tóth B, Szalenko-Tőkés Á, Bella Z, Dembrovszky F, Farkas N, Kiss S, Hegyi P, Matuz M, Tóth N, Hegedüs I, Máthé D, Csupor D. Results of a systematic review and meta-analysis of early studies on ivermectin in SARS-CoV-2 infection. GeroScience 2023; 45:2179-2193. [PMID: 36879183 PMCID: PMC9988599 DOI: 10.1007/s11357-023-00756-y] [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: 11/11/2022] [Accepted: 02/16/2023] [Indexed: 03/08/2023] Open
Abstract
Ivermectin, an antiparasitic drug, has been repurposed for COVID-19 treatment during the SARS-CoV-2 pandemic. Although its antiviral efficacy was confirmed early in vitro and in preclinical studies, its clinical efficacy remained ambiguous. Our purpose was to assess the efficacy of ivermectin in terms of time to viral clearance based on the meta-analysis of available clinical trials at the closing date of the data search period, one year after the start of the pandemic. This meta-analysis was reported by following the PRISMA guidelines and by using the PICO format for formulating the question. The study protocol was registered on PROSPERO. Embase, MEDLINE (via PubMed), Cochrane Central Register of Controlled Trials (CENTRAL), bioRvix, and medRvix were searched for human studies of patients receiving ivermectin therapy with control groups. No language or publication status restrictions were applied. The search ended on 1/31/2021 exactly one year after WHO declared the public health emergency on novel coronavirus. The meta-analysis of three trials involving 382 patients revealed that the mean time to viral clearance was 5.74 days shorter in case of ivermectin treatment compared to the control groups [WMD = -5.74, 95% CI (-11.1, -0.39), p = 0.036]. Ivermectin has significantly reduced the time to viral clearance in mild to moderate COVID-19 diseases compared to control groups. However, more eligible studies are needed for analysis to increase the quality of evidence of ivermectin use in COVID-19.
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Affiliation(s)
- Zsuzsanna Ragó
- Doctoral School of Clinical Medicine, University of Szeged, Szeged, Hungary
| | - Barbara Tóth
- Institute of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Ágnes Szalenko-Tőkés
- Doctoral School of Clinical Medicine, University of Szeged, Szeged, Hungary
- NOÉ Health Care Centre, Szeged, Hungary
| | - Zsolt Bella
- Doctoral School of Clinical Medicine, University of Szeged, Szeged, Hungary
- NOÉ Health Care Centre, Szeged, Hungary
| | - Fanni Dembrovszky
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Nelli Farkas
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, Hungary
| | - Szabolcs Kiss
- Doctoral School of Clinical Medicine, University of Szeged, Szeged, Hungary
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Hegyi
- 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
| | - Mária Matuz
- Institute of Clinical Pharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Noémi Tóth
- Institute of Clinical Pharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Imre Hegedüs
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Domokos Máthé
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary.
- In Vivo Imaging ACF, Hungarian Centre of Excellence for Molecular Medicine (HCEMM), Szeged, Hungary.
| | - Dezső Csupor
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Institute of Clinical Pharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
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22
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Antal D, Pór Á, Kovács I, Dull K, Póliska S, Ujlaki G, Demény MÁ, Szöllősi AG, Kiss B, Szegedi A, Bai P, Szántó M. PARP2 promotes inflammation in psoriasis by modulating estradiol biosynthesis in keratinocytes. J Mol Med (Berl) 2023; 101:987-999. [PMID: 37351597 PMCID: PMC10400701 DOI: 10.1007/s00109-023-02338-z] [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: 01/05/2023] [Revised: 05/09/2023] [Accepted: 06/12/2023] [Indexed: 06/24/2023]
Abstract
Poly(ADP-ribose) polymerase 2 (PARP2) alongside PARP1 are responsible for the bulk of cellular PARP activity, and they were first described as DNA repair factors. However, research in past decades implicated PARPs in biological functions as diverse as the regulation of cellular energetics, lipid homeostasis, cell death, and inflammation. PARP activation was described in Th2-mediated inflammatory processes, but studies focused on the role of PARP1, while we have little information on PARP2 in inflammatory regulation. In this study, we assessed the role of PARP2 in a Th17-mediated inflammatory skin condition, psoriasis. We found that PARP2 mRNA expression is increased in human psoriatic lesions. Therefore, we studied the functional consequence of decreased PARP2 expression in murine and cellular human models of psoriasis. We observed that the deletion of PARP2 attenuated the imiquimod-induced psoriasis-like dermatitis in mice. Silencing of PARP2 in human keratinocytes prevented their hyperproliferation, maintained their terminal differentiation, and reduced their production of inflammatory mediators after treatment with psoriasis-mimicking cytokines IL17A and TNFα. Underlying these observations, we found that aromatase was induced in the epidermis of PARP2 knock-out mice and in PARP2-deficient human keratinocytes, and the resulting higher estradiol production suppressed NF-κB activation, and hence, inflammation in keratinocytes. Steroidogenic alterations have previously been described in psoriasis, and we extend these observations by showing that aromatase expression is reduced in psoriatic lesions. Collectively, our data identify PARP2 as a modulator of estrogen biosynthesis by epidermal keratinocytes that may be relevant in Th17 type inflammation. KEY MESSAGES : PARP2 mRNA expression is increased in lesional skin of psoriasis patients. PARP2 deletion in mice attenuated IMQ-induced psoriasis-like dermatitis. NF-κB activation is suppressed in PARP2-deficient human keratinocytes. Higher estradiol in PARP2-deficient keratinocytes conveys anti-inflammatory effect.
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Affiliation(s)
- Dóra Antal
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem ter 1., Elettudomanyi Epulet, H-4032, Debrecen, Hungary
- The Hungarian Academy of Sciences, Center of Excellence, Budapest, Hungary
| | - Ágnes Pór
- Department of Pathology, Gyula Kenézy Campus, Clinical Centre, University of Debrecen, Debrecen, Hungary
| | - Ilona Kovács
- Department of Pathology, Gyula Kenézy Campus, Clinical Centre, University of Debrecen, Debrecen, Hungary
| | - Katalin Dull
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Szilárd Póliska
- Genomic Medicine and Bioinformatics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gyula Ujlaki
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem ter 1., Elettudomanyi Epulet, H-4032, Debrecen, Hungary
- The Hungarian Academy of Sciences, Center of Excellence, Budapest, Hungary
| | - Máté Ágoston Demény
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem ter 1., Elettudomanyi Epulet, H-4032, Debrecen, Hungary
- The Hungarian Academy of Sciences, Center of Excellence, Budapest, Hungary
| | - Attila Gábor Szöllősi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Borbála Kiss
- Department of Oncology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Szegedi
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Allergology Research Group, University of Debrecen, Debrecen, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem ter 1., Elettudomanyi Epulet, H-4032, Debrecen, Hungary
- The Hungarian Academy of Sciences, Center of Excellence, Budapest, 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
| | - Magdolna Szántó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem ter 1., Elettudomanyi Epulet, H-4032, Debrecen, Hungary.
- The Hungarian Academy of Sciences, Center of Excellence, Budapest, Hungary.
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Éliás AJ, Barna V, Patoni C, Demeter D, Veres DS, Bunduc S, Erőss B, Hegyi P, Földvári-Nagy L, Lenti K. Probiotic supplementation during antibiotic treatment is unjustified in maintaining the gut microbiome diversity: a systematic review and meta-analysis. BMC Med 2023; 21:262. [PMID: 37468916 DOI: 10.1186/s12916-023-02961-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 06/26/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Probiotics are often used to prevent antibiotic-induced low-diversity dysbiosis, however their effect is not yet sufficiently summarized in this regard. We aimed to investigate the effects of concurrent probiotic supplementation on gut microbiome composition during antibiotic therapy. METHODS We performed a systematic review and meta-analysis of randomized controlled trials reporting the differences in gut microbiome diversity between patients on antibiotic therapy with and without concomitant probiotic supplementation. The systematic search was performed in three databases (MEDLINE (via PubMed), Embase, and Cochrane Central Register of Controlled Trials (CENTRAL)) without filters on 15 October 2021. A random-effects model was used to estimate pooled mean differences (MD) with 95% confidence intervals (CI). This review was registered on PROSPERO (CRD42021282983). RESULTS Of 11,769 identified articles, 15 were eligible in the systematic review and 5 in the meta-analyses. Quantitative data synthesis for Shannon (MD = 0.23, 95% CI: [(-)0.06-0.51]), Chao1 (MD = 11.59 [(-)18.42-41.60]) and observed OTUs (operational taxonomic unit) (MD = 17.15 [(-)9.43-43.73]) diversity indices revealed no significant difference between probiotic supplemented and control groups. Lacking data prevented meta-analyzing other diversity indices; however, most of the included studies reported no difference in the other reported α- and ß-diversity indices between the groups. Changes in the taxonomic composition varied across the eligible studies but tended to be similar in both groups. However, they showed a potential tendency to restore baseline levels in both groups after 3-8 weeks. This is the first meta-analysis and the most comprehensive review of the topic to date using high quality methods. The limited number of studies and low sample sizes are the main limitations of our study. Moreover, there was high variability across the studies regarding the indication of antibiotic therapy and the type, dose, and duration of antimicrobials and probiotics. CONCLUSIONS Our results showed that probiotic supplementation during antibiotic therapy was not found to be influential on gut microbiome diversity indices. Defining appropriate microbiome diversity indices, their standard ranges, and their clinical relevance would be crucial.
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Affiliation(s)
- Anna Júlia Éliás
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Doctoral School of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Viktória Barna
- Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Cristina Patoni
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Dóra Demeter
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Military Hospital Medical Centre, Hungarian Defense Forces, Budapest, Hungary
| | - Dániel Sándor Veres
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Stefania Bunduc
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Fundeni Clinical Institute, Bucharest, Romania
| | - Bálint Erőss
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Hegyi
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - László Földvári-Nagy
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary.
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary.
| | - Katalin Lenti
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
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24
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Tóth B, Amelin K, Rõõm T, Nagel U, Bauernfeind A, Tsurkan V, Prodan L, Krug von Nidda HA, Scheffler M, Kézsmárki I, Bordács S. Broadband magnetic resonance spectroscopy in MnSc[Formula: see text]S[Formula: see text]. Sci Rep 2023; 13:11069. [PMID: 37422590 PMCID: PMC10329720 DOI: 10.1038/s41598-023-37911-6] [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: 03/29/2023] [Accepted: 06/29/2023] [Indexed: 07/10/2023] Open
Abstract
Recent neutron scattering experiments suggested that frustrated magnetic interactions give rise to antiferromagnetic spiral and fractional skyrmion lattice phases in MnSc[Formula: see text]S[Formula: see text] . Here, to trace the signatures of these modulated phases, we studied the spin excitations of MnSc[Formula: see text]S[Formula: see text] by THz spectroscopy at 300 mK and in magnetic fields up to 12 T and by broadband microwave spectroscopy at various temperatures up to 50 GHz. We found a single magnetic resonance with frequency linearly increasing in field. The small deviation of the Mn[Formula: see text] ion g-factor from 2, g = 1.96, and the absence of other resonances imply very weak anisotropies and negligible contribution of higher harmonics to the spiral state. The significant difference between the dc magnetic susceptibility and the lowest-frequency ac susceptibility in our experiment implies the existence of mode(s) outside of the measured frequency windows. The combination of THz and microwave experiments suggests a spin gap opening below the ordering temperature between 50 GHz and 100 GHz.
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Affiliation(s)
- Boglárka Tóth
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Kirill Amelin
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Toomas Rõõm
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Urmas Nagel
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Anastasia Bauernfeind
- 1. Physikalisches Institut, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Vladimir Tsurkan
- Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86159 Augsburg, Germany
- Institute of Applied Physics, Moldova State University, 5 Academiei Str., 2028 Chisinau, Republic of Moldova
| | - Lilian Prodan
- Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86159 Augsburg, Germany
- Institute of Applied Physics, Moldova State University, 5 Academiei Str., 2028 Chisinau, Republic of Moldova
| | - Hans-Albrecht Krug von Nidda
- Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86159 Augsburg, Germany
| | - Marc Scheffler
- 1. Physikalisches Institut, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - István Kézsmárki
- Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86159 Augsburg, Germany
| | - Sándor Bordács
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
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25
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Futosi K, Németh T, Horváth ÁI, Abram CL, Tusnády S, Lowell CA, Helyes Z, Mócsai A. Myeloid Src-family kinases are critical for neutrophil-mediated autoinflammation in gout and motheaten models. J Exp Med 2023; 220:e20221010. [PMID: 37074415 PMCID: PMC10120404 DOI: 10.1084/jem.20221010] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 01/27/2023] [Accepted: 03/28/2023] [Indexed: 04/20/2023] Open
Abstract
Autoinflammatory diseases include a number of monogenic systemic inflammatory diseases, as well as acquired autoinflammatory diseases such as gout. Here, we show that the myeloid Src-family kinases Hck, Fgr, and Lyn are critical for experimental models of gout, as well as for genetically determined systemic inflammation in the Ptpn6me-v/me-v (motheaten viable) mouse model. The Hck-/-Fgr-/-Lyn-/- mutation abrogated various monosodium urate (MSU) crystal-induced pro-inflammatory responses of neutrophils, and protected mice from the development of gouty arthritis. The Src-family inhibitor dasatinib abrogated MSU crystal-induced responses of human neutrophils and reduced experimental gouty arthritis in mice. The Hck-/-Fgr-/-Lyn-/- mutation also abrogated spontaneous inflammation and prolonged the survival of the Ptpn6me-v/me-v mice. Spontaneous adhesion and superoxide release of Ptpn6me-v/me-v neutrophils were also abolished by the Hck-/-Fgr-/-Lyn-/- mutation. Excessive activation of tyrosine phosphorylation pathways in myeloid cells may characterize a subset of autoinflammatory diseases.
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Affiliation(s)
- Krisztina Futosi
- Department of Physiology, School of Medicine, Semmelweis University, Budapest, Hungary
- ELKH-SE Inflammation Physiology Research Group, Eötvös Loránd Research Network and Semmelweis University, Budapest, Hungary
| | - Tamás Németh
- Department of Physiology, School of Medicine, Semmelweis University, Budapest, Hungary
- MTA-SE “Lendület” Translational Rheumatology Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
- Department of Rheumatology and Clinical Immunology, Semmelweis University, Budapest, Hungary
- Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - Ádám I. Horváth
- Department of Pharmacology and Pharmacotherapy, Medical School and János Szentágothai Research Centre, Centre for Neuroscience, University of Pécs, Pécs, Hungary
| | - Clare L. Abram
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Simon Tusnády
- Department of Physiology, School of Medicine, Semmelweis University, Budapest, Hungary
| | - Clifford A. Lowell
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Medical School and János Szentágothai Research Centre, Centre for Neuroscience, University of Pécs, Pécs, Hungary
- PharmInVivo Ltd., Pécs, Hungary
| | - Attila Mócsai
- Department of Physiology, School of Medicine, Semmelweis University, Budapest, Hungary
- ELKH-SE Inflammation Physiology Research Group, Eötvös Loránd Research Network and Semmelweis University, Budapest, Hungary
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26
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Tőzsér D, Horváth R, Simon E, Magura T. Heavy metal uptake by plant parts of Populus species: a meta-analysis. Environ Sci Pollut Res Int 2023; 30:69416-69430. [PMID: 37131011 DOI: 10.1007/s11356-023-27244-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 04/22/2023] [Indexed: 05/04/2023]
Abstract
Populus species are well documented for being potentially suitable for phytoremediation purposes regarding their accumulation characteristics. However, published results are contradictory. Based on the data gathered during an extensive literature search, we aimed to assess and revise the metal accumulation potential in the root, stem, and leaf of Populus species growing in contaminated soils, with meta-analysis. We evaluated the influences of pollution level, soil pH, and exposure time on the metal uptake patterns. We found accumulations of Cd, Cr, Cu, Pb, and Zn to be significant in each plant part, while that was only moderate for Ni, and limited for Mn. By calculating the soil pollution index (PI), we observed significantly intensive, PI-independent accumulation for Cd, Cr, Cu, Ni, Pb, and Zn. A decrease in soil pH significantly increased the uptake of Mn and significantly decreased the accumulation of Pb in the stem. Metal uptake was significantly influenced by exposure time as well; Cd concentration was significantly decreased in the stem, while concentrations of Cr in the stem and leaf, and Mn in the stem were significantly increased with time. These aforementioned findings support a well-founded metal-and-growth condition-specific application of poplars in phytoremediation processes, also triggering further in-depth assessments to enhance the efficiency of relevant poplar-based technologies.
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Affiliation(s)
- Dávid Tőzsér
- Department of Ecology, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary
- Circular Economy Analysis Center, Hungarian University of Agriculture and Life Sciences, Páter Károly str. 1, Gödöllő, H-2100, Hungary
| | - Roland Horváth
- Department of Ecology, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary.
- ELKH-DE Anthropocene Ecology Research Group, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary.
| | - Edina Simon
- Department of Ecology, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary
- ELKH-DE Anthropocene Ecology Research Group, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary
| | - Tibor Magura
- Department of Ecology, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary
- ELKH-DE Anthropocene Ecology Research Group, University of Debrecen, Egyetem sq. 1, Debrecen, H-4032, Hungary
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27
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Halasy V, Szőcs E, Soós Á, Kovács T, Pecsenye-Fejszák N, Hotta R, Goldstein AM, Nagy N. CXCR4 and CXCL12 signaling regulates the development of extrinsic innervation to the colorectum. Development 2023; 150:dev201289. [PMID: 37039233 PMCID: PMC10263150 DOI: 10.1242/dev.201289] [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: 09/09/2022] [Accepted: 01/25/2023] [Indexed: 04/12/2023]
Abstract
The gastrointestinal tract is innervated by an intrinsic neuronal network, known as the enteric nervous system (ENS), and by extrinsic axons arising from peripheral ganglia. The nerve of Remak (NoR) is an avian-specific sacral neural crest-derived ganglionated structure that extends from the cloaca to the proximal midgut and, similar to the pelvic plexus, provides extrinsic innervation to the distal intestine. The molecular mechanisms controlling extrinsic nerve fiber growth into the gut is unknown. In vertebrates, CXCR4, a cell-surface receptor for the CXCL12 chemokine, regulates migration of neural crest cells and axon pathfinding. We have employed chimeric tissue recombinations and organ culture assays to study the role of CXCR4 and CXCL12 molecules in the development of colorectal innervation. CXCR4 is specifically expressed in nerve fibers arising from the NoR and pelvic plexus, while CXCL12 is localized to the hindgut mesenchyme and enteric ganglia. Overexpression of CXCL12 results in significantly enhanced axonal projections to the gut from the NoR, while CXCR4 inhibition disrupts nerve fiber extension, supporting a previously unreported role for CXCR4 and CXCL12 signaling in extrinsic innervation of the colorectum.
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Affiliation(s)
- Viktória Halasy
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Emőke Szőcs
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Ádám Soós
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Tamás Kovács
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Nóra Pecsenye-Fejszák
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Ryo Hotta
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Allan M. Goldstein
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Nándor Nagy
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
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28
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Keszthelyi TM, Tory K. The importance of pseudouridylation: human disorders related to the fifth nucleoside. Biol Futur 2023:10.1007/s42977-023-00158-3. [PMID: 37000312 DOI: 10.1007/s42977-023-00158-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 03/09/2023] [Indexed: 04/01/2023]
Abstract
Pseudouridylation is one of the most abundant RNA modifications in eukaryotes, making pseudouridine known as the "fifth nucleoside." This highly conserved alteration affects all non-coding and coding RNA types. Its role and importance have been increasingly widely researched, especially considering that its absence or damage leads to serious hereditary diseases. Here, we summarize the human genetic disorders described to date that are related to the participants of the pseudouridylation process.
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Affiliation(s)
| | - Kálmán Tory
- Department of Pediatrics, Semmelweis University, Budapest, Hungary
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29
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Stavely R, Hotta R, Guyer RA, Picard N, Rahman AA, Omer M, Soos A, Szocs E, Mueller J, Goldstein AM, Nagy N. A distinct transcriptome characterizes neural crest-derived cells at the migratory wavefront during enteric nervous system development. Development 2023; 150:dev201090. [PMID: 36779913 PMCID: PMC10108706 DOI: 10.1242/dev.201090] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 02/03/2023] [Indexed: 02/14/2023]
Abstract
Enteric nervous system development relies on intestinal colonization by enteric neural crest-derived cells (ENCDCs). This is driven by a population of highly migratory and proliferative ENCDCs at the wavefront, but the molecular characteristics of these cells are unknown. ENCDCs from the wavefront and the trailing region were isolated and subjected to RNA-seq. Wavefront-ENCDCs were transcriptionally distinct from trailing ENCDCs, and temporal modelling confirmed their relative immaturity. This population of ENCDCs exhibited altered expression of ECM and cytoskeletal genes, consistent with a migratory phenotype. Unlike trailing ENCDCs, the wavefront lacked expression of genes related to neuronal or glial maturation. As wavefront ENCDC genes were associated with migration and developmental immaturity, the genes that remain expressed in later progenitor populations may be particularly pertinent to understanding the maintenance of ENCDC progenitor characteristics. Dusp6 expression was specifically upregulated at the wavefront. Inhibiting DUSP6 activity prevented wavefront colonization of the hindgut, and inhibited the migratory ability of post-colonized ENCDCs from midgut and postnatal neurospheres. These effects were reversed by simultaneous inhibition of ERK signaling, indicating that DUSP6-mediated ERK inhibition is required for ENCDC migration in mouse and chick.
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Affiliation(s)
- Rhian Stavely
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Ryo Hotta
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Richard A. Guyer
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Nicole Picard
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Ahmed A. Rahman
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Meredith Omer
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Adam Soos
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Emoke Szocs
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
| | - Jessica Mueller
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Allan M. Goldstein
- Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Nandor Nagy
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary
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30
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Szabo D, Szabo A, Magyar L, Banhegyi G, Kugler S, Pinter A, Juhasz V, Ruppert M, Olah A, Ruzsa Z, Edes IF, Szekely A, Becker D, Merkely B, Hizoh I. Admission lactate level and the GRACE 2.0 score are independent and additive predictors of 30-day mortality of STEMI patients treated with primary PCI-Results of a real-world registry. PLoS One 2022; 17:e0277785. [PMID: 36383629 PMCID: PMC9668119 DOI: 10.1371/journal.pone.0277785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 11/03/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In many of the risk estimation algorithms for patients with ST-elevation myocardial infarction (STEMI), heart rate and systolic blood pressure are key predictors. Yet, these parameters may also be altered by the applied medical treatment / circulatory support without concomitant improvement in microcirculation. Therefore, we aimed to investigate whether venous lactate level, a well-known marker of microcirculatory failure, may have an added prognostic value on top of the conventional variables of the "Global Registry of Acute Coronary Events" (GRACE) 2.0 model for predicting 30-day all-cause mortality of STEMI patients treated with primary percutaneous coronary intervention (PCI). METHODS In a prospective single-center registry study conducted from May 2020 through April 2021, we analyzed data of 323 cases. Venous blood gas analysis was performed in all patients at admission. Nested logistic regression models were built using the GRACE 2.0 score alone (base model) and with the addition of venous lactate level (expanded model) with 30-day all-cause mortality as primary outcome measure. Difference in model performance was analyzed by the likelihood ratio (LR) test and the integrated discrimination improvement (IDI). Independence of the predictors was evaluated by the variance inflation factor (VIF). Discrimination and calibration was characterized by the c-statistic and calibration intercept / slope, respectively. RESULTS Addition of lactate level to the GRACE 2.0 score improved the predictions of 30-day mortality significantly as assessed by both LR test (LR Chi-square = 8.7967, p = 0.0030) and IDI (IDI = 0.0685, p = 0.0402), suggesting that the expanded model may have better predictive ability than the GRACE 2.0 score. Furthermore, the VIF was 1.1203, indicating that the measured lactate values were independent of the calculated GRACE 2.0 scores. CONCLUSIONS Our results suggest that admission venous lactate level and the GRACE 2.0 score may be independent and additive predictors of 30-day all-cause mortality of STEMI patients treated with primary PCI.
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Affiliation(s)
- Dominika Szabo
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Andras Szabo
- School of PhD Studies, Semmelweis University, Budapest, Hungary
| | - Levente Magyar
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | | | - Szilvia Kugler
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Anita Pinter
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Vencel Juhasz
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Mihaly Ruppert
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Attila Olah
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zoltan Ruzsa
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- Division of Invasive Cardiology, 2 Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | | | - Andrea Szekely
- Department of Oxiology and Emergency Care, Semmelweis University, Budapest, Hungary
| | - David Becker
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bela Merkely
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Istvan Hizoh
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- * E-mail:
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31
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Kiss-Dala N, Szabo BG, Lakatos B, Reti M, Szlavik J, Valyi-Nagy I. Use of convalescent plasma therapy in hospitalised adult patients with non-critical COVID-19: a focus on the elderly from Hungary. GeroScience 2022; 44:2427-2445. [PMID: 36367599 PMCID: PMC9650173 DOI: 10.1007/s11357-022-00683-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/26/2022] [Indexed: 11/12/2022] Open
Abstract
Convalescent plasma therapy might be a feasible option for treatment of novel infections. During the early phases of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pandemic, several promising results were published with convalescent plasma therapy, followed by more disappointing findings of randomised controlled trials. In our single-centre, open-label, prospective, cohort study, we assessed the findings of 180 patients treated with convalescent plasma during the first four waves of the pandemic in Hungary. The primary outcome was all-cause mortality; secondary outcomes were clinical improvement and need for intensive care unit admission by day 28. Subgroup analysis comparing elderly and non-elderly (less than 65 years of age) was performed. Twenty (11.4%) patients died by day 28, at significantly higher rates in the elderly subgroup (3 vs. 17, p < 0.01). One hundred twenty-eight (72.7%) patients showed clinical improvement, and 15 (8.5%) were transferred to the intensive care unit until day 28. Non-elderly patients showed clinical improvement by day 28 in significantly higher rates (improvement 74 vs. 54, no improvement 15 vs. 11, worsening or death 4 vs. 18 patients, p < 0.01). In conclusion, we found similar clinical outcome results as randomised controlled trials, and the impact of risk factors for unfavourable clinical outcomes among patients in the elderly population.
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Affiliation(s)
- Noemi Kiss-Dala
- School of PhD Studies, Semmelweis University, H-1085 Ulloi Ut 26, Budapest, Hungary.
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Szent Laszlo Campus, H-1097 Albert Florian Ut 5-7., Budapest, Hungary.
| | - Balint Gergely Szabo
- School of PhD Studies, Semmelweis University, H-1085 Ulloi Ut 26, Budapest, Hungary
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Szent Laszlo Campus, H-1097 Albert Florian Ut 5-7., Budapest, Hungary
| | - Botond Lakatos
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Szent Laszlo Campus, H-1097 Albert Florian Ut 5-7., Budapest, Hungary
| | - Marienn Reti
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Szent Laszlo Campus, H-1097 Albert Florian Ut 5-7., Budapest, Hungary
| | - Janos Szlavik
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Szent Laszlo Campus, H-1097 Albert Florian Ut 5-7., Budapest, Hungary
| | - Istvan Valyi-Nagy
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Szent Laszlo Campus, H-1097 Albert Florian Ut 5-7., Budapest, Hungary
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Barta Z. Publication games: In the web of reciprocity. PLoS One 2022; 17:e0270618. [PMID: 36288263 PMCID: PMC9604877 DOI: 10.1371/journal.pone.0270618] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/10/2022] [Indexed: 11/15/2022] Open
Abstract
The present processes of research assessment, i.e. focusing on one or a few, related, scientometrics, foster questionable authorship practices, like gifting authorship to non-contributing people. An especially harmful one of these unethical practices is the formation of publication cartels, where authors offer gift authorship to each other reciprocally. Here, by developing a simple model and a simulation of the publication process I investigate how beneficial cartels can be and what measure can be used to restrict them. My results indicate that publication cartels can significantly boost members' productivity even if paper counts are weighted by the inverse of author number (the 1/n rule). Nevertheless, applying the 1/n rule generates conflicts of interest both among cartel members themselves and between cartel members and non-members which might lead to the self-purification of the academic publishing industry.
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Affiliation(s)
- Zoltán Barta
- ELKH-DE Behavioural Ecology Research Group, Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
- * E-mail:
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Banerjee S, Bedics A, Tóth E, Kriszt B, Soares AR, Bóka K, Táncsics A. Isolation of Pseudomonas aromaticivorans sp. nov from a hydrocarbon-contaminated groundwater capable of degrading benzene-, toluene-, m- and p-xylene under microaerobic conditions. Front Microbiol 2022; 13:929128. [PMID: 36204622 PMCID: PMC9530055 DOI: 10.3389/fmicb.2022.929128] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Members of the genus Pseudomonas are known to be widespread in hydrocarbon contaminated environments because of their remarkable ability to degrade a variety of petroleum hydrocarbons, including BTEX (benzene, toluene, ethylbenzene and xylene) compounds. During an enrichment investigation which aimed to study microaerobic xylene degradation in a legacy petroleum hydrocarbon-contaminated groundwater, a novel Gram-stain-negative, aerobic, motile and rod-shaped bacterial strain, designated as MAP12T was isolated. It was capable of degrading benzene, toluene, meta- and para- xylene effectively under both aerobic and microaerobic conditions. The 16S rRNA gene sequence analysis revealed that strain MAP12T belongs to the genus Pseudomonas, with the highest 16S rRNA gene similarity to Pseudomonas linyingensis LYBRD3-7T (98.42%), followed by Pseudomonas sagittaria JCM 18195T (98.29%) and Pseudomonas alcaliphila JCM 10630T (98.08%). Phylogenomic tree constructed using a concatenated alignment of 92 core genes indicated that strain MAP12T is distinct from any known Pseudomonas species. The draft genome sequence of strain MAP12T is 4.36 Mb long, and the G+C content of MAP12T genome is 65.8%. Orthologous average nucleotide identity (OrthoANI) and digital DNA–DNA hybridization (dDDH) analyses confirmed that strain MAP12T is distinctly separated from its closest neighbors (OrthoANI < 89 %; dDDH < 36%). Though several members of the genus Pseudomonas are well known for their aerobic BTEX degradation capability, this is the first report of a novel Pseudomonas species capable of degrading xylene under microaerobic conditions. By applying genome-resolved metagenomics, we were able to partially reconstruct the genome of strain MAP12T from metagenomics sequence data and showed that strain MAP12T was an abundant member of the xylene-degrading bacterial community under microaerobic conditions. Strain MAP12T contains ubiquinone 9 (Q9) as the major respiratory quinone and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine as major polar lipids. The major cellular fatty acids of strain MAP12T are summed feature 3 (C16:1ω6c and/or C16:1ω7c), C16:0 and summed feature 8 (C18:1ω6c and/or C18:1ω7c). The results of this polyphasic study support that strain MAP12T represents a novel species of the genus Pseudomonas, hence the name of Pseudomonas aromaticivorans sp. nov. is proposed for this strain considering its aromatic hydrocarbon degradation capability. The type strain is MAP12T (=LMG 32466, =NCAIM B.02668).
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Affiliation(s)
- Sinchan Banerjee
- Department of Molecular Ecology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Anna Bedics
- Department of Molecular Ecology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Erika Tóth
- Department of Microbiology, Eötvös Loránd University, Budapest, Hungary
| | - Balázs Kriszt
- Department of Environmental Safety, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - André R. Soares
- Group for Aquatic Microbial Ecology, Institute for Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Károly Bóka
- Department of Plant Anatomy, Eötvös Loránd University, Budapest, Hungary
| | - András Táncsics
- Department of Molecular Ecology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
- *Correspondence: András Táncsics,
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Vattay B, Borzsák S, Boussoussou M, Vecsey-Nagy M, Jermendy ÁL, Suhai FI, Maurovich-Horvat P, Merkely B, Kolossváry M, Szilveszter B. Association between coronary plaque volume and myocardial ischemia detected by dynamic perfusion CT imaging. Front Cardiovasc Med 2022; 9:974805. [PMID: 36158821 PMCID: PMC9498180 DOI: 10.3389/fcvm.2022.974805] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/11/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction We aimed to evaluate the relationship between quantitative plaque metrics derived from coronary CT angiography (CTA) and segmental myocardial ischemia using dynamic perfusion CT (DPCT). Methods In a prospective single-center study, patients with > 30% stenosis on rest CTA underwent regadenoson stress DPCT. 480 myocardium segments of 30 patients were analyzed. Quantitative plaque assessment included total plaque volume (PV), area stenosis, and remodeling index (RI). High-risk plaque (HRP) was defined as low-attenuation plaque burden > 4% or RI > 1.1. Absolute myocardial blood flow (MBF) and relative MBF (MBFi: MBF/75th percentile of all MBF values) were quantified. Linear and logistic mixed models correcting for intra-patient clustering and clinical factors were used to evaluate the association between total PV, area stenosis, HRP and MBF or myocardial ischemia (MBF < 101 ml/100 g/min). Results Median MBF and MBFi were 111 ml/100 g/min and 0.94, respectively. The number of ischemic segments were 164/480 (34.2%). Total PV of all feeding vessels of a given myocardial territory differed significantly between ischemic and non-ischemic myocardial segments (p = 0.001). Area stenosis and HRP features were not linked to MBF or MBFi (all p > 0.05). Increase in PV led to reduced MBF and MBFi after adjusting for risk factors including hypertension, diabetes, and statin use (per 10 mm3; β = −0.035, p < 0.01 for MBF; β = −0.0002, p < 0.01 for MBFi). Similarly, using multivariate logistic regression total PV was associated with ischemia (OR = 1.01, p = 0.033; per 10 mm3) after adjustments for clinical risk factors, area stenosis and HRP. Conclusion Total PV was independently associated with myocardial ischemia based on MBF, while area stenosis and HRP were not.
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Affiliation(s)
- Borbála Vattay
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Sarolta Borzsák
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Melinda Boussoussou
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Milán Vecsey-Nagy
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Ádám L. Jermendy
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Ferenc I. Suhai
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Pál Maurovich-Horvat
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- Medical Imaging Center, Semmelweis University, Budapest, Hungary
| | - Béla Merkely
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Márton Kolossváry
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bálint Szilveszter
- Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- *Correspondence: Bálint Szilveszter,
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Lukács H, Jócsák I, Somfalvi-Tóth K, Keszthelyi S. Physiological Responses Manifested by Some Conventional Stress Parameters and Biophoton Emission in Winter Wheat as a Consequence of Cereal Leaf Beetle Infestation. Front Plant Sci 2022; 13:839855. [PMID: 35873954 PMCID: PMC9298668 DOI: 10.3389/fpls.2022.839855] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/09/2022] [Indexed: 05/31/2023]
Abstract
Oulema melanopus L. (Coleoptera: Chrysomelidae) is one of the most serious pests of winter wheat that causes peeling of the epidermis and tissue loss. The complex mapping of the physiological responses triggered by O. melanopus as a biotic stressor in winter wheat has not been fully explored with the help of non-invasive imaging and analytical assays, yet. The aim of the present work was to study the effect of O. melanopus on the physiological processes of winter wheat, especially on the extent of lipid peroxidation and antioxidant activity derived from tissue destruction, as well as photosynthetic ability. The results of the measurements enabled the identification of the antioxidant and lipid-oxidation-related physiological reactions, and they were reflected in the dynamics of non-invasive biophoton emissions. Our non-invasive approach pointed out that in the case of O. melanopus infestation the damage is manifested in tissue loss and the systemic signaling of the biotic stress may have reached other plant parts as well, which was confirmed by the results of antioxidant capacity measurements. These results indicate that the plant reacts to the biotic stress at a whole organizational level. We identified that the antioxidant and lipid-oxidation-related physiological reactions were reflected in the dynamics of two aspects of biophoton emission: delayed fluorescence and ultra-weak bioluminescence. Our research further supported that the non-invasive approach to stress assessment may complete and detail the traditional stress indicators.
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Affiliation(s)
| | | | | | - Sándor Keszthelyi
- Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Kaposvár, Hungary
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Lados G, Hegedus G, Kovacs Z. The Role of Identity and Ontological (In)Security in Return Migration: an Empirical Perspective from Hungary. Int Migration & Integration 2022; 24:445-464. [PMID: 35582048 PMCID: PMC9099032 DOI: 10.1007/s12134-022-00964-z] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2022] [Indexed: 11/29/2022]
Abstract
East–West migration has become a dominant spatial phenomenon in Europe since the step-by-step enlargement of the EU, posing considerable socio-economic and demographic challenges for sending countries. However, little is known about the geopolitics and motivations that inspire a return to the country of origin. The objective of this article is to identify the motivations for emigration, adaptation experiences and decisions of Hungarian migrants who worked in the West for a period of time and returned to Hungary, based on their skills and family status before their return. The research is based on in-depth interviews with 48 returnees and builds on the cultural identity model and the notion of ontological security. The study demonstrates the growing role of geopolitics in return migration, although its relevance differs in various groups, with clear distinctions between the high- and low-skilled migrants. The role of family as a geopolitical unit is increasing; factors like their endeavour to hold the family together, fear of children’s assimilation, loss of identity and uncertainty while abroad are important in shaping decisions to return. On the other hand, schemes to enhance the return migration of the highly skilled also build on geopolitical and nationalistic rhetoric, which appear to target experiences of ontological (in)security among migrants.
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Affiliation(s)
- Gabor Lados
- Institute for Regional Studies, Centre for Economic and Regional Studies, Pecs, Hungary
- Department of Economic and Social Geography, University of Szeged, Szeged, Hungary
| | - Gabor Hegedus
- Department of Economic and Social Geography, University of Szeged, Szeged, Hungary
| | - Zoltan Kovacs
- Department of Economic and Social Geography, University of Szeged, Szeged, Hungary
- Geographical Institute, Research Centre for Astronomy and Earth Sciences, Budapest, Hungary
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37
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Jelemenský M, Kovácsházi C, Ferenczyová K, Hofbauerová M, Kiss B, Pállinger É, Kittel Á, Sayour VN, Görbe A, Pelyhe C, Hambalkó S, Kindernay L, Barančík M, Ferdinandy P, Barteková M, Giricz Z. Helium Conditioning Increases Cardiac Fibroblast Migration Which Effect Is Not Propagated via Soluble Factors or Extracellular Vesicles. Int J Mol Sci 2021; 22:10504. [PMID: 34638845 PMCID: PMC8508629 DOI: 10.3390/ijms221910504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/21/2021] [Accepted: 09/24/2021] [Indexed: 12/18/2022] Open
Abstract
Helium inhalation induces cardioprotection against ischemia/reperfusion injury, the cellular mechanism of which remains not fully elucidated. Extracellular vesicles (EVs) are cell-derived, nano-sized membrane vesicles which play a role in cardioprotective mechanisms, but their function in helium conditioning (HeC) has not been studied so far. We hypothesized that HeC induces fibroblast-mediated cardioprotection via EVs. We isolated neonatal rat cardiac fibroblasts (NRCFs) and exposed them to glucose deprivation and HeC rendered by four cycles of 95% helium + 5% CO2 for 1 h, followed by 1 h under normoxic condition. After 40 h of HeC, NRCF activation was analyzed with a Western blot (WB) and migration assay. From the cell supernatant, medium extracellular vesicles (mEVs) were isolated with differential centrifugation and analyzed with WB and nanoparticle tracking analysis. The supernatant from HeC-treated NRCFs was transferred to naïve NRCFs or immortalized human umbilical vein endothelial cells (HUVEC-TERT2), and a migration and angiogenesis assay was performed. We found that HeC accelerated the migration of NRCFs and did not increase the expression of fibroblast activation markers. HeC tended to decrease mEV secretion of NRCFs, but the supernatant of HeC or the control NRCFs did not accelerate the migration of naïve NRCFs or affect the angiogenic potential of HUVEC-TERT2. In conclusion, HeC may contribute to cardioprotection by increasing fibroblast migration but not by releasing protective mEVs or soluble factors from cardiac fibroblasts.
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Affiliation(s)
- Marek Jelemenský
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.J.); (K.F.); (L.K.); (M.B.)
| | - Csenger Kovácsházi
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
| | - Kristína Ferenczyová
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.J.); (K.F.); (L.K.); (M.B.)
| | - Monika Hofbauerová
- Institute of Physics, Slovak Academy of Sciences, Dúbravská Cesta 9, 84511 Bratislava, Slovakia;
- Centre for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská Cesta 9, 84511 Bratislava, Slovakia
| | - Bernadett Kiss
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
- MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary
| | - Éva Pállinger
- Department of Genetics, Cell and Immunobiology, Semmelweis University, 1089 Budapest, Hungary;
| | - Ágnes Kittel
- Institute of Experimental Medicine, Eötvös Loránd Research Network, 1083 Budapest, Hungary;
| | - Viktor Nabil Sayour
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
| | - Anikó Görbe
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
- MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary
- Pharmahungary Group, 6722 Szeged, Hungary
| | - Csilla Pelyhe
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
| | - Szabolcs Hambalkó
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
| | - Lucia Kindernay
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.J.); (K.F.); (L.K.); (M.B.)
| | - Miroslav Barančík
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.J.); (K.F.); (L.K.); (M.B.)
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
- MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary
- Pharmahungary Group, 6722 Szeged, Hungary
| | - Monika Barteková
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.J.); (K.F.); (L.K.); (M.B.)
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, 81372 Bratislava, Slovakia
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (C.K.); (B.K.); (V.N.S.); (A.G.); (C.P.); (S.H.); (P.F.)
- Pharmahungary Group, 6722 Szeged, Hungary
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Kasza R, Donkó T, Matics Z, Nagy I, Csóka Á, Kovács G, Gerencsér Z, Dalle Zotte A, Cullere M, Szendrő Z. Rabbit Lines Divergently Selected for Total Body Fat Content: Correlated Responses on Growth Performance and Carcass Traits. Animals (Basel) 2020; 10:E1815. [PMID: 33036146 PMCID: PMC7599759 DOI: 10.3390/ani10101815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 11/20/2022] Open
Abstract
The aim of this experiment was to study the effect of divergently selected rabbits for total body fat content (fat index) on growth performance and carcass traits. The fat index was determined at 10 weeks of age by computed tomography and lasted for four consecutive generations. The rabbits with the lowest fat index belonged to the lean line and those of the highest values belonged to the fat line. At generation four, 60 rabbits/line were housed in wire-mesh cages and fed with commercial pellet ad libitum from weaning (5 w of age) to slaughtering (11 w of age). Growth performance, dressing out percentage and carcass adiposity were measured. The lean line showed a better feed conversion ratio (p < 0.001) than the fat line. Furthermore, the carcass of the lean rabbits had the highest proportion of fore (p < 0.020) and hind (p < 0.006) parts. On the contrary, rabbits of the fat line had the highest carcass adiposity (p < 0.001). The divergent selection for total body fat content showed to be effective for both lean and fat lines. Selection for lower total body fat content could be useful for terminal male lines, while the selection for higher total body fat content could be an advantage for rabbit does in providing fat (energy) reserves.
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Affiliation(s)
- Rozália Kasza
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
| | - Tamás Donkó
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
- Medicopus Nonprofit Ltd., Guba S. Str. 40, H-7400 Kaposvár, Hungary
| | - Zsolt Matics
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
| | - István Nagy
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
| | - Ádám Csóka
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
- Medicopus Nonprofit Ltd., Guba S. Str. 40, H-7400 Kaposvár, Hungary
| | - György Kovács
- Analytical Minds Ltd, Árpád Str. 5, H-4933 Beregsurány, Hungary;
| | - Zsolt Gerencsér
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
| | - Antonella Dalle Zotte
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell’Universitá 16, 35020 Legnaro, Italy; (A.D.Z.); (M.C.)
| | - Marco Cullere
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell’Universitá 16, 35020 Legnaro, Italy; (A.D.Z.); (M.C.)
| | - Zsolt Szendrő
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. Str. 40, H-7400 Kaposvár, Hungary; (R.K.); (Z.M.); (I.N.); (A.C.); (Z.G.); (Z.S.)
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