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Noga M, Michalska A, Jurowski K. The acute toxicity of Novichok's degradation products using quantitative and qualitative toxicology in silico methods. Arch Toxicol 2024; 98:1469-1483. [PMID: 38441627 DOI: 10.1007/s00204-024-03695-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 01/24/2024] [Indexed: 03/27/2024]
Abstract
The emergence of Novichok agents, potent organophosphorus nerve agents, has spurred the demand for advanced analytical methods and toxicity assessments as a result of their involvement in high-profile incidents. This study focuses on the degradation products of Novichok agents, particularly their potential toxic effects on biological systems. Traditional in vivo methods for toxicity evaluation face ethical and practical constraints, prompting a shift toward in silico toxicology research. In this context, we conducted a comprehensive qualitative and quantitative analysis of acute oral toxicity (AOT) for Novichok degradation products, using various in silico methods, including TEST, CATMoS, ProTox-II, ADMETlab, ACD/Labs Percepta, and QSAR Toolbox. Adopting these methodologies aligns with the 3Rs principle, emphasising Replacement, Reduction, and Refinement in the realm of toxicological studies. Qualitative assessments with STopTox and admetSAR revealed toxic profiles for all degradation products, with predicted toxicophores highlighting structural features responsible for toxicity. Quantitative predictions yielded varied estimates of acute oral toxicity, with the most toxic degradation products being EOPAA, MOPGA, MOPAA, MPGA, EOPGA, and MPAA, respectively. Structural modifications common to all examined hydrolytic degradation products involve substituting the fluorine atom with a hydroxyl group, imparting consequential effects on toxicity. The need for sophisticated analytical techniques for identifying and quantifying Novichok degradation products is underscored due to their inherent reactivity. This study represents a crucial step in unravelling the complexities of Novichok toxicity, highlighting the ongoing need for research into its degradation processes to refine analytical methodologies and fortify readiness against potential threats.
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Affiliation(s)
- Maciej Noga
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Lodz, Poland
| | - Agata Michalska
- Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Lodz, Poland
| | - Kamil Jurowski
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Lodz, Poland.
- Laboratory of Innovative Toxicological Research and Analyzes, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959, Rzeszow, Poland.
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2
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Michalska A, Niechcial K, Niechcial R, Wolder DP, Gładys-Jakubczyk A, Bielasik K, Swiercz G. Natural childbirth and cesarean section - descriptive analysis of queries in Google search engine. Ginekol Pol 2024:VM/OJS/J/97654. [PMID: 38632881 DOI: 10.5603/gpl.97654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/07/2024] [Accepted: 01/13/2024] [Indexed: 04/19/2024] Open
Abstract
OBJECTIVES The use of internet-based search engines for health information is very popular and common. The Internet has become an important source of health information and has a considerable impact on patient's decision making process. Knowledge of pregnant women about childbirth comes from health professionals and personal experiences described by friends or family members. There is a growing interest in digital sources used by pregnant women. Analysis of queries related to regarding to natural childbirth and cesarean section in the Google search engine. MATERIAL AND METHODS In this infodemiology, descriptive study tool "AlsoAsked" was used. This is a tool for analyzing data appearing in Google search results. "AlsoAsked" search was conducted on April 19, 2023. Search phrases "natural childbirth" and "cesarean section" in polish language were used. Questions that were typed into the Google search engine, ranked according to popularity (volume) and thematic connections have been discussed. RESULTS The most frequently asked questions were related to the course and duration of labor as well as the preparation for labor and cesarean section (CS). Comparison between a natural labour and CS in the context of safety and pain received a great deal of attention. CONCLUSIONS The most popular questions regarding CS were related to elective CS and indications for it. Some questions concerned the connection between labor and clinical state of a newborn.
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Affiliation(s)
- Agata Michalska
- Collegium Medicum, Jan Kochanowski University of Kielce, Poland.
| | | | | | - Daniel P Wolder
- Clinic of Obstetrics and Gynecology, Regional Specialist Hospital, Kielce, Poland
| | | | | | - Grzegorz Swiercz
- Clinic of Obstetrics and Gynecology, Regional Specialist Hospital, Kielce, Poland
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Noga M, Michalska A, Jurowski K. The estimation of acute oral toxicity (LD 50) of G-series organophosphorus-based chemical warfare agents using quantitative and qualitative toxicology in silico methods. Arch Toxicol 2024:10.1007/s00204-024-03714-5. [PMID: 38493428 DOI: 10.1007/s00204-024-03714-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/20/2024] [Indexed: 03/19/2024]
Abstract
The idea of this study was the estimation of the theoretical acute toxicity (t-LD50, rat, oral dose) of organophosphorus-based chemical warfare agents from the G-series (n = 12) using different in silico methods. Initially identified in Germany, the G-type nerve agents include potent compounds such as tabun, sarin, and soman. Despite their historical significance, there is a noticeable gap in acute toxicity data for these agents. This study employs qualitative (STopTox and AdmetSAR) and quantitative (TEST; CATMoS; ProTox-II and QSAR Toolbox) in silico methods to predict LD50 values, offering an ethical alternative to animal testing. Additionally, we conducted quantitative extrapolation from animals, and the results of qualitative tests confirmed the acute toxicity potential of these substances and enabled the identification of toxicophoric groups. According to our estimations, the most lethal agents within this category were GV, soman (GD), sarin (GB), thiosarin (GBS), and chlorosarin (GC), with t-LD50 values (oral administration, extrapolated from rat to human) of 0.05 mg/kg bw, 0.08 mg/kg bw, 0.12 mg/kg bw, 0.15 mg/kg bw, and 0.17 mg/kg bw, respectively. On the contrary, compounds with a cycloalkane attached to the phospho-oxygen linkage, specifically methyl cyclosarin and cyclosarin, were found to be the least toxic, with values of 2.28 mg/kg bw and 3.03 mg/kg bw. The findings aim to fill the knowledge gap regarding the acute toxicity of these agents, highlighting the need for modern toxicological methods that align with ethical considerations, next-generation risk assessment (NGRA) and the 3Rs (replacement, reduction and refinement) principles.
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Affiliation(s)
- Maciej Noga
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Agata Michalska
- Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Kamil Jurowski
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland.
- Laboratory of Innovative Toxicological Research and Analyzes, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959, Rzeszów, Poland.
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Stelmach E, Wagner B, Maksymiuk K, Michalska A. Finding a perfect match of ion-exchanger and plasticizer for ion-selective sensors. Talanta 2024; 269:125408. [PMID: 38043344 DOI: 10.1016/j.talanta.2023.125408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/02/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
Application of neutral ionophore based ion-selective sensors requires presence of ion-exchanger in the receptor phase, silently assuming that it is not only soluble but also dissociates to ions in the applied plasticizer. Although for typically applied ion-selective membrane constituents (plasticizers - ion-exchanger pairs) dissociation of ion-exchangers to ions is proven by theoretical (or close to) performance of resulting sensors, search for alternative plasticizers or ion-exchangers requires a method allowing estimation of the match of properties of involved compounds. In this work we propose a simple optical approach allowing estimation of ion-exchanger interactions with plasticizer. The results were confirmed by conductivity studies of model plasticizers solutions. The estimated dissociation constants of model ion-exchangers in plasticizers used are in excellent agreement with the results of optical studies. It was shown that solubility coupled with poor dissociation to ions of ion-exchanger affects performance of the resulting ion-selective membrane. Rational choice of properties of ion-exchanger and plasticizer allows finding a perfect match of the two, that results in improvements in performance of sensors (e.g. detection limits). As model sensors potassium and sodium ion-selective electrodes with poly(vinyl chloride) (PVC) based membranes, plasticized with classical plasticizer bis(2-ethylhexyl sebacate) or biodegradable alternative acetyl tributyl citrate, were prepared and studied using selected ion-exchangers.
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Affiliation(s)
- Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Barbara Wagner
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland.
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Noga M, Michalska A, Jurowski K. The prediction of hydrolysis and biodegradation of organophosphorus-based chemical warfare agents (G-series and V-series) using toxicology in silico methods. Ecotoxicol Environ Saf 2024; 272:116018. [PMID: 38325275 DOI: 10.1016/j.ecoenv.2024.116018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 02/09/2024]
Abstract
Nerve agents (G- and V-series) are a group of extremely toxic organophosphorus chemical warfare agents that we have had the opportunity to encounter many times on a massive scale (Matsumoto City, Tokyo subway and Gulf War). The threat of using nerve agents in terrorist attacks or military operations is still present, even with establishing the Chemical Weapons Convention as the legal framework. Understanding their environmental sustainability and health risks is critical to social security. Due to the risk of contact with dangerous nerve agents and animal welfare considerations, in silico methods were used to assess hydrolysis and biodegradation safely. The environmental fate of the examined nerve agents was elucidated using QSAR models. The results indicate that the investigated compounds released into the environment hydrolyse at a different rate, from extremely fast (<1 day) to very slow (over a year); V-agents undergo slower hydrolysis compared to G-agents. V-agents turned out to be relatively challenging to biodegrade, the ultimate biodegradation time frame of which was predicted as weeks to months, while for G-agents, the overwhelming majority was classified as weeks. In silico methods for predicting various parameters are critical to preparing for the forthcoming application of nerve agents.
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Affiliation(s)
- Maciej Noga
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205 Łódź, Poland
| | - Agata Michalska
- Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205 Łódź, Poland
| | - Kamil Jurowski
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205 Łódź, Poland; Laboratory of Innovative Toxicological Research and Analyzes, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959 Rzeszów, Poland.
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Stelmach E, Kalisz J, Wagner B, Maksymiuk K, Michalska A. Nanofiber Ion-Selective Membrane-Coated Carbon Paper All-Solid-State Sensors: One Stone, Two Birds. Anal Chem 2024; 96:3253-3258. [PMID: 38359329 PMCID: PMC10902807 DOI: 10.1021/acs.analchem.3c04764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Potentiometric sensors with nanostructural ion-selective membranes were prepared and tested. Electrospun nanofiber mats were applied in novel all-solid-state sensors, using carbon paper as an electronically conducting support. For the sake of simplicity, application of a solid contact layer was avoided, and redox-active impurities naturally present in the carbon paper have proven to be effective as ion-to-electron transducers. Application of a nanostructural ion-selective membrane requires an innovative approach to combine the receptor layer with the support. The nanofiber mat portion was fused with carbon paper in a hot-melt process. Applying temperature close to 120 °C for a short time (3 s) allowed binding the nanostructural ion-selective membrane with carbon paper, without significant changes in the nanofiber structure. This process was conveniently performed together with the lamination of the carbon paper support. The thus obtained, potentially disposable sensors were characterized as exhibiting highly reproducible potential readings in time as well as between sensors belonging to the same batch. The benefits of the application of nanostructural ion-selective membranes include shorter equilibration time, lower detection limit, and significantly lower material consumption. However, the nanostructural membrane is characterized by a higher electrical resistance, which is attributed to higher porosity.
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Affiliation(s)
- Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Justyna Kalisz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Barbara Wagner
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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Michalska A, Mierzwa-Molenda M, Bielasik K, Pogorzelska J, Wolder DP, Swiercz G. Optimization of the cosmetic appearance of skin scar after caesarean section - part II physiotherapy practice. Ginekol Pol 2024; 95:156-166. [PMID: 38334342 DOI: 10.5603/gpl.98523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 02/10/2024] Open
Abstract
Scar formation is a natural part of the healing process after CS. This process, lasting up to two years, depends on the number of factors including type of incision, wound size, the person's age, body weight, health condition, and many others. Abnormal scarring should not be treated only as a cosmetic defect or superficial tissue defects. Functional and anatomical considerations must also be considered. Large varieties of non-invasive treatment modalities have been used to enhance wound healing and scar treatment. The article proposes a comprehensive approach to scar prevention and remodeling. The role of manual techniques, dry needling, cupping therapy, compression therapy, Kinesio taping, and physical agents is highlighted.
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Affiliation(s)
- Agata Michalska
- Collegium Medicum, Jan Kochanowski University of Kielce, Poland
| | | | - Karol Bielasik
- Collegium Medicum, Jan Kochanowski University of Kielce, Poland
| | | | - Daniel P Wolder
- Collegium Medicum, Jan Kochanowski University of Kielce, Poland.
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Milan J, Michalska A, Jurowski K. The comprehensive review about elements accumulation in industrial hemp (Cannabis sativa L.). Food Chem Toxicol 2024; 184:114344. [PMID: 38081533 DOI: 10.1016/j.fct.2023.114344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/23/2023] [Accepted: 12/03/2023] [Indexed: 01/27/2024]
Abstract
Cannabis sativa L., commonly known as industrial hemp, is a versatile plant with applications ranging from medicinal to agricultural and industrial uses. Despite its benefits, there is a notable gap in regulatory toxicology, in understanding the extent of element accumulation in hemp, which is critical due to its ability to absorb various elements from the soil, including heavy metals (Pb, Cd, Hg, and As), uptakes potential toxic elements (e.g., Sb, Sn, Sr, Bi, Tl), problematic elements (Ni, Cr, Co), and essential elements (Zn, Cu, Fe, Mn). The paper aims to enrich current understandings by offering a comprehensive analysis of elements absorption in industrial hemp. This study emphasizes the potential health risks linked with hemp consumption including regulatory toxicology aspects: limits, Permitted Daily Exposures (PDE), recommendations in different countries and from different agencies/bodies (like the WHO and the EU) based on route of administration, jurisdiction and actual literature review. This review contributes significantly to the knowledge base on hemp safety, serving as a valuable resource for researchers, regulatory bodies, and industry stakeholders.
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Affiliation(s)
- Justyna Milan
- Laboratory of Innovative Toxicological Research and Analyses, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959, Rzeszów, Poland
| | - Agata Michalska
- Institute of Medical Expertise, Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Kamil Jurowski
- Laboratory of Innovative Toxicological Research and Analyses, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959, Rzeszów, Poland; Department of Regulatory and Forensic Toxicology, Institute of Medical Expertise, Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland.
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Kalisz J, Sobczak K, Maksymiuk K, Michalska A, Krajczewski J. Nanofiber-Supported Palladium Nanocubes-Toward Highly Active and Reusable Catalyst. ACS Omega 2024; 9:4050-4056. [PMID: 38284038 PMCID: PMC10809285 DOI: 10.1021/acsomega.3c08414] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/05/2023] [Accepted: 12/15/2023] [Indexed: 01/30/2024]
Abstract
Electrospun nanofibers were used to support palladium nanocubes, resulting in a highly active, stable, and reusable catalyst. The system proposed herein offers significant advantages compared to catalysts in the form of nanoparticles suspension. The porous, solvent permeable structure of the nanofiber mat ensures uniform and stable time distribution of palladium nanoparticles; preventing coalescence and allowing multiple use of the catalyst. The proposed cross-linked poly(vinyl alcohol) nanofiber mat loaded with Pd nanocubes during the nanofiber preparation step is a macroscopic structure of intrinsically nanostructural character of the catalyst that can be easily transferred between different solutions without compromising its effectiveness in consecutive cycles. Thus, obtained system was characterized with high catalytic activity as tested on a model example of 4-nitrophenol (4-NP) reduction by NaBH4 to 4-aminophenol (4-AP). It is shown that loading nanofibers with Pd nanocubes during electrospinning resulted in a significantly more stable system compared to surface modification of obtained nanofibers with nanocube suspension.
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Affiliation(s)
- Justyna Kalisz
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Kamil Sobczak
- Biological
and Chemical Research Centre, University
of Warsaw, Żwirki
i Wigury 101, 02-089 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Jan Krajczewski
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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Noga M, Michalska A, Jurowski K. The prediction of acute toxicity (LD 50) for organophosphorus-based chemical warfare agents (V-series) using toxicology in silico methods. Arch Toxicol 2024; 98:267-275. [PMID: 38051368 PMCID: PMC10761519 DOI: 10.1007/s00204-023-03632-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/07/2023] [Indexed: 12/07/2023]
Abstract
Nerve agents are organophosphate chemical warfare agents that exert their toxic effects by irreversibly inhibiting acetylcholinesterase, affecting the breakdown of the neurotransmitter acetylcholine in the synaptic cleft. Due to the risk of exposure to dangerous nerve agents and for animal welfare reasons, in silico methods have been used to assess acute toxicity safely. The next-generation risk assessment (NGRA) is a new approach for predicting toxicological parameters that can meet modern requirements for toxicological research. The present study explains the acute toxicity of the examined V-series nerve agents (n = 9) using QSAR models. Toxicity Estimation Software Tool (ver. 4.2.1 and ver. 5.1.2), QSAR Toolbox (ver. 4.6), and ProTox-II browser application were used to predict the median lethal dose. The Simplified Molecular Input Line Entry Specification (SMILES) was the input data source. The results indicate that the most deadly V-agents were VX and VM, followed by structural VX analogues: RVX and CVX. The least toxic turned out to be V-sub x and Substance 100A. In silico methods for predicting various parameters are crucial for filling data gaps ahead of experimental research and preparing for the upcoming use of nerve agents.
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Affiliation(s)
- Maciej Noga
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Agata Michalska
- Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Kamil Jurowski
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205, Łódź, Poland.
- Laboratory of Innovative Toxicological Research and Analyzes, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959, Rzeszów, Poland.
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Kęska P, Stadnik J, Łupawka A, Michalska A. Novel α-Glucosidase Inhibitory Peptides Identified In Silico from Dry-Cured Pork Loins with Probiotics through Peptidomic and Molecular Docking Analysis. Nutrients 2023; 15:3539. [PMID: 37630730 PMCID: PMC10460020 DOI: 10.3390/nu15163539] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/09/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Diabetes mellitus is a serious metabolic disorder characterized by abnormal blood glucose levels in the body. The development of therapeutic strategies for restoring and maintaining blood glucose homeostasis is still in progress. Synthetic alpha-amylase and alpha-glucosidase inhibitors can improve blood glucose control in diabetic patients by effectively reducing the risk of postprandial hyperglycemia. Peptides of natural origin are promising compounds that can serve as alpha-glucosidase inhibitors in the treatment of type 2 diabetes. Potential alpha-glucosidase-inhibiting peptides obtained from aqueous and saline extracts from dry-cured pork loins inoculated with probiotic LAB were evaluated using in vitro and in silico methods. To identify the peptide sequences, liquid chromatography-mass spectrometry was used. For this purpose, in silico calculation methods were used, and the occurrence of bioactive fragments in the protein followed the ADMET approach. The most promising sequences were molecularly docked to test their interaction with the human alpha-glycosidase molecule (PDB ID: 5NN8). The docking studies proved that oligopeptides VATPPPPPPPK, DIPPPPM, TPPPPPPG, and TPPPPPPPK obtained by hydrolysis of proteins from ripening dry-cured pork loins showed the potential to bind to the human alpha-glucosidase molecule and may act effectively as a potential antidiabetic agent.
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Affiliation(s)
| | - Joanna Stadnik
- Department of Animal Food Technology, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland
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Noga M, Michalska A, Jurowski K. The prediction of hydrolysis and biodegradation of Novichoks using in silico toxicology methods. Sci Total Environ 2023:164241. [PMID: 37236459 DOI: 10.1016/j.scitotenv.2023.164241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/26/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023]
Abstract
Novichoks constitute a relatively new class of nerve agents of extreme toxicity that we have had the opportunity to experience three times already. After the first case (Salisbury, UK), a public debate about Novichoks began, which resulted in the realisation of the nature of these chemicals. From a social security point of view, examining their properties, especially toxicological and environmental aspects, are crucial. After the CWC (Chemical Warfare Agent) list update, the candidate structures for the Novichoks may be over 10,000 compounds. It would be extremely laborious to conduct experimental research for each. Understanding their environmental persistence and health hazards is an essential national issue. Moreover, due to the high risk posed by contact with hazardous Novichok substances, in silico research was applied to estimate hydrolysis and biodegradation safely. The present study elucidates, using QSAR models, the environmental fate of the Novichoks studied (n = 17). The results indicate that Novichoks released into the environment hydrolyse at various rates, from extremely fast (<1 day) to very slow (more than a year). Furthermore, ultimate biodegradation from weeks to months is expected for most compounds, which classifies them as relatively difficult biodegradable. Applying reliable in silico methods (QSAR Toolbox and EPI Suite) for predicting various parameters is crucial to prepare for the upcoming usage of Novichoks.
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Affiliation(s)
- Maciej Noga
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205 Łódź, Poland
| | - Agata Michalska
- Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205 Łódź, Poland
| | - Kamil Jurowski
- Laboratory of Innovative Toxicological Research and Analyzes, Institute of Medical Studies, Medical College, Rzeszów University, Al. mjr. W. Kopisto 2a, 35-959 Rzeszów, Poland; Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, ul. Aleksandrowska 67/93, 91-205 Łódź, Poland.
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Noga M, Michalska A, Jurowski K. Application of toxicology in silico methods for prediction of acute toxicity (LD 50) for Novichoks. Arch Toxicol 2023; 97:1691-1700. [PMID: 37145338 PMCID: PMC10182927 DOI: 10.1007/s00204-023-03507-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Novichoks represent the fourth generation of chemical warfare agents with paralytic and convulsive effects, produced clandestinely during the Cold War by the Soviet Union. This novel class of organophosphate compounds is characterised by severe toxicity, which, for example, we have already experienced three times (Salisbury, Amesbury, and Navalny's case) as a society. Then the public debate about the true nature of Novichoks began, realising the importance of examining the properties, especially the toxicological aspects of these compounds. The updated Chemical Warfare Agents list registers over 10,000 compounds as candidate structures for Novichoks. Consequently, conducting experimental research for each of them would be a huge challenge. Additionally, due to the enormous risk of contact with hazardous Novichoks, in silico assessments were applied to estimate their toxicity safely. In silico toxicology provides a means of identifying hazards of compounds before synthesis, helping to fill gaps and guide risk minimisation strategies. A new approach to toxicology testing first considers the prediction of toxicological parameters, eliminating unnecessary animal studies. This new generation risk assessment (NGRA) can meet the modern requirements of toxicological research. The present study explains, using QSAR models, the acute toxicity of the Novichoks studied (n = 17). The results indicate that the toxicity of Novichoks varies. The deadliest turned out to be A-232, followed by A-230 and A-234. On the other hand, the "Iranian" Novichok and C01-A038 compounds turned out to be the least toxic. Developing reliable in silico methods to predict various parameters is essential to prepare for the upcoming use of Novichoks.
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Affiliation(s)
- Maciej Noga
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, Ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Agata Michalska
- Institute of Medical Expertises in Łódź, Ul. Aleksandrowska 67/93, 91-205, Łódź, Poland
| | - Kamil Jurowski
- Department of Regulatory and Forensic Toxicology, Institute of Medical Expertises in Łódź, Ul. Aleksandrowska 67/93, 91-205, Łódź, Poland.
- Laboratory of Innovative Toxicological Research and Analyzes, Institute of Medical Studies, Medical College, Rzeszów University, Al. Mjr. W. Kopisto 2a, 35-959, Rzeszów, Poland.
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14
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Wolder DP, Swiercz GM, Michalska A, Pogorzelska J. Optimization of the cosmetic appearance of skin scar after caesarean section - part I: obstetric practice. Ginekol Pol 2023:VM/OJS/J/94089. [PMID: 37070965 DOI: 10.5603/gp.a2023.0043] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/15/2023] [Indexed: 04/19/2023] Open
Abstract
Caesarean section (CS) is a surgical way of child delivery by cutting the abdomen and uterus. Although compared to natural childbirth, it carries a greater risk of complications, the percentage of performed cuts is still increasing. The consequence of this procedure is the surgical skin scar. The appearance of this scar depends on many factors, including appropriate pre- and intraoperative procedure, operator skills and experience. The aim of the work is to present actions aimed at increasing the aesthetics of the skin scar after CS including pre-, intra- and postoperative procedures.
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Affiliation(s)
- Daniel P Wolder
- Clinic of Obstetrics and Gynaecology, Provincial Combined Hospital, Kielce, Poland, Poland.
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15
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Kalisz J, Zarębska J, Kijeńska-Gawrońska E, Maksymiuk K, Michalska A. Colorimetric and fluorimetric pH sensing using polydiacetylene as chromoionophore embedded within PVC‐PCL nanofibers. ELECTROANAL 2023. [DOI: 10.1002/elan.202200497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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Kaczmarczyk B, Kalisz J, Kijeńska-Gawrońska E, Maksymiuk K, Michalska A. Nanofibers as optical sensors for model VOCs dispersed in aqueous phase. ELECTROANAL 2022. [DOI: 10.1002/elan.202200496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Konefał A, Piątek P, Paterczyk B, Maksymiuk K, Michalska A. Ionophore based optical sensors using hydrophilic polymer matrix – Ratiometric, pH independent ion-selective optodes. Talanta 2022. [DOI: 10.1016/j.talanta.2022.124038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Michalak M, Kałuża D, Michalska A, Maksymiuk K. Temperature triggered ion-selective membranes for non-zero current electrochemical ion sensors. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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19
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Kalisz J, Węgrzyn K, Michalska A, Maksymiuk K. Resolution increase of ion-selective electrodes response by using a reversed amperometric setup. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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20
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Jaworska E, Maksymiuk K, Michalska A. Adding plasticizer dispersible conducting polymer to the ion‐selective membrane composition – revitalizing single piece ion–selective electrodes concept. ELECTROANAL 2022. [DOI: 10.1002/elan.202200160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Michalska A, Pogorzelska J, Marszalek A, Mlodawski J. Fatigue fracture of the sacrum related to pregnancy. Ginekol Pol 2022; 93:521-522. [DOI: 10.5603/gp.a2021.0236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 12/28/2021] [Indexed: 11/25/2022] Open
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22
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Abstract
![]()
A new concept of
easy to make, potentially disposable potentiometric
sensors is presented. A thermoprocessable carbon black-loaded, electronically
conducting, polylactide polymer composite was used to prepare substrate
electrodes of user’s defined shape/arrangement applying a 3D
pen in a hot melt process. Covering of the carbon black-loaded polylactide
3D-drawn substrate electrode with a PVC-based ion-selective membrane
cocktail results in spontaneous formation of a zip-lock structure
with a large contact area. Thus, obtained ion-selective electrodes
offer sensors of excellent performance, including potential stability
expressed by SD of the mean value of potential recorded equal to ±1.0
mV (n = 6) within one day and ±1.5 mV (n = 6) between five days. The approach offers also high
device-to-device potential reproducibility: SD of mean value of E0 equal to ±1.5 mV (n =
5).
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Affiliation(s)
- Justyna Kalisz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Katarzyna Wȩgrzyn
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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23
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Jaworska E, Maksymiuk K, Michalska A. Ion-selective membrane plasticizer leakage in all-solid-state electrodes – an unobvious way to improve potential reading stability in time. Analyst 2022; 147:3298-3304. [DOI: 10.1039/d2an00571a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of leakage of the plasticizer from the ion-selective membrane into the ion-to-electron transducer of all-solid-state potentiometric sensors is considered for the first time.
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Affiliation(s)
- Ewa Jaworska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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24
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Kisiel A, Michalska A, Maksymiuk K. Bypassed ion-selective electrodes – self-powered polarization for tailoring of sensor performance. Analyst 2022; 147:2764-2772. [DOI: 10.1039/d2an00458e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bypass circuit with zinc wire induces spontaneous charge flow: oxidation of zinc and reduction of the solid contact of K-ISE. This effect is helpful in the improvement of analytical parameters of K-ISE.
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Affiliation(s)
- Anna Kisiel
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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25
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Kaluza D, Węgrzyn K, Kaczmarczyk B, Gniadek M, Maksymiuk K, Michalska A. An Electrochemical Approach to Quantification of Volatile Organic Solvents Dispersed in Solution – Towards Bipolar Electrode Sensors. ELECTROANAL 2022. [DOI: 10.1002/elan.202100292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dawid Kaluza
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Katarzyna Węgrzyn
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Brian Kaczmarczyk
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Marianna Gniadek
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | | | - Agata Michalska
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
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26
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Kałuża D, Michalska A, Maksymiuk K. Solid‐Contact Ion‐Selective Electrodes Paving the Way for Improved Non‐Zero Current Sensors: A Minireview. ChemElectroChem 2021. [DOI: 10.1002/celc.202100892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dawid Kałuża
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Agata Michalska
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
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27
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Abstract
Classical application of ion-selective membranes is limited to either electrochemical or optical experiments. Herein, the proposed ion-selective membrane system can be used in both modes; each of them offering competitive analytical parameters: high selectivity and linear dependence of the signal on logarithm of analyte concentration, high potential stability in potentiometric mode, or applicability for alkaline solutions in optical mode. Incorporation of analyte ions into the membrane results in potentiometric signals, as in a classical system. However, due to the presence of lipophilic positively charged ions, polymer backbones, full saturation of the membrane is prevented even for long contact time with solution. The presence of both positively charged and neutral forms of conducting polymers in the membrane results in high stability of potential readings in time. Optical signal generation is based on polythiophene particulates dispersed within the ion-selective membrane as the optical transducer. An increase of emission is observed with an increase of analyte contents in the sample.
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Affiliation(s)
- Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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28
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Kalisz J, Węgrzyn K, Maksymiuk K, Michalska A. Fluorimetric Readout of Ion Selective Electrode Signals Operating under Chronopotentiometric Conditions. ChemElectroChem 2021. [DOI: 10.1002/celc.202100884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Justyna Kalisz
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Katarzyna Węgrzyn
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | | | - Agata Michalska
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
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29
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Abstract
We report here on a new generation of optical ion-selective sensors benefiting from cubosomes or hexosomes-nanostructural lipid liquid phase. Cubosome as well as hexosome optodes offer biocompatibility, self-assembly preparation, high stability in solution, and unique, tunable analytical performance. The temperature trigger reversibly changes the lipid nanoparticle internal structure-changing analyte access to the bulk of the probe and ultimately affecting the response pattern. Thus, cubosome or hexosome optodes are highly promising alternatives to conventional polymeric based optical nanoprobes.
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Affiliation(s)
- Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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30
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Węgrzyn K, Kalisz J, Stelmach E, Maksymiuk K, Michalska A. Emission Intensity Readout of Ion-Selective Electrodes Operating under an Electrochemical Trigger. Anal Chem 2021; 93:10084-10089. [PMID: 34264066 PMCID: PMC8382224 DOI: 10.1021/acs.analchem.1c00857] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report for the first time on in situ transduction of electrochemical responses of ion-selective electrodes, operating under non-zero-current conditions, to emission change signals. The proposed novel-type PVC-based membrane comprises a dispersed redox and emission active ion-to-electron transducer. The electrochemical trigger applied induces a redox process of the transducer, inducing ion exchange between the membrane and the solution, resulting also in change of its emission spectrum. It is shown that electrochemical signals recorded for ion-selective electrodes operating under voltammetric/coulometric conditions correlate with emission intensity changes recorded in the same experiments. Moreover, the proposed optical readout offers extended linear response range compared to electrical signals recorded in voltammetric or coulometric mode.
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Affiliation(s)
- Katarzyna Węgrzyn
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Justyna Kalisz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
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31
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Szczypiński J, Wypych M, Michalska A, Krasowska A, Kopera M, Suszek H, Marchewka A, Jakubczyk A, Wojnar M. Pedophilic sex offender show reduced actiation in the right dlpfc during integration of emotion and cognition – preliminary results. Eur Psychiatry 2021. [PMCID: PMC9475693 DOI: 10.1192/j.eurpsy.2021.1102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction The pedophilic disorder is characterized by a sexual preference for children and leads to child sexual abuse (CSA) in half of the patients. Studies showed that pedophiles with a history of CSA (CSA+) are inferior, in inhibitory control, to those without (CSA-). Objectives Inhibitory control may be influenced by negative affectivity, which was shown to be a state factor facilitating sexual abuse. Nevertheless, it is not known if distress influence CSA+ and CSA- equally. Methods We recruited three groups of participants: healthy controls (HC) CSA+ and CSA- who performed an emotional Go-NoGo block task. The task was design specifically to correspond to a situation in which an indivisual is opposed by a negative life event. In each trial, participants were presented with photographs, either of neutral or negative valence, which did not require reaction. After the photographs, a circle (Go stimuli) or a square (NoGo stimuli) was presented.![]() Results We found that HC and CSA- had slower reaction time in negative compared to neutral condition (regardless of the block type), while CSA+ did not. Consequently, HC and CSA- showed increased activation in the right dorsolateral prefrontal cortex (DLPFC) in negative compared to the neutral condition, what was not observed in CSA+.![]() Conclusions DLPFC is crucial for cognitive control, however, the activity of this region is modulated by emotional valence. Reduced engagement of dlPFC in CSA+ in negative condition (irrespectively of the task instructions), suggest that negative emotions in CSA+ disrupt also other aspects of cognitive control, rather than inhibition specifically.
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32
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Krata AA, Stelmach E, Wojciechowski M, Bulska E, Maksymiuk K, Michalska A. Insights into Primary Ion Exchange between Ion-Selective Membranes and Solution. From Altering Natural Isotope Ratios to Isotope Dilution Inductively Coupled Plasma Mass Spectrometry Studies. ACS Sens 2020; 5:3930-3938. [PMID: 33301318 PMCID: PMC7771020 DOI: 10.1021/acssensors.0c01585] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although ion-selective electrodes have been routinely used for decades now, there are still gaps in experimental evidence regarding how these sensors operate. This especially applies to the exchange of primary ions occurring for systems already containing analyte ions from the pretreatment step. Herein, for the first time, we present an insight into this process looking at the effect of altered ratios of naturally occurring analyte isotopes and achieving isotopic equilibrium. Benefiting from the same chemical properties of all isotopes of analyte ions and spatial resolution offered by laser ablation and inductively coupled plasma mass spectrometry, obtaining insights into primary ion diffusion in the preconditioned membrane is possible. For systems that have reached isotopic equilibrium in the membrane through ion exchange and between the membrane phase and the sample, quantification of primary ions in the membrane is possible using an isotope dilution approach for a heterogeneous system (membrane-liquid sample). Experimental results obtained for silver-selective membrane show that the primary ion diffusion coefficient in the preconditioned membrane is close to (6 ± 1) × 10-9 cm2/s, being somewhat lower compared to the previously reported values for other cations. Diffusion of ions in the membrane is the rate limiting step in achieving isotopic exchange equilibrium between the ion-selective membrane phase and sample solution. On the contrary to previous reports, quantification of silver present in the membrane clearly shows that contact of the membrane with silver nitrate solution of concentration 10-3 M leads to pronounced accumulation of silver ions in the membrane, reaching almost 150% of ion exchanger amount. The magnitude of this effect increases for higher concentration of the electrolyte in the solution.
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Affiliation(s)
- Agnieszka Anna Krata
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Marcin Wojciechowski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Ewa Bulska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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33
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Kisiel A, Baniak B, Maksymiuk K, Michalska A. Ion-selective reversing aggregation-caused quenching - Maximizing optodes signal stability. Talanta 2020; 220:121358. [PMID: 32928393 DOI: 10.1016/j.talanta.2020.121358] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 12/22/2022]
Abstract
An alternative optical signal transduction mechanism for ion-selective optodes is proposed. The nanostructural sensors benefit from ion-selective reversing aggregation caused quenching yielding turn-on, bright and highly stable optical signals. Selective incorporation of analyte results in transformation of the polymer dye from aggregate to a micelle structure, affecting spatial arrangement of chromophore groups in the nanostructure. Formation of micelles, induced by ion-selective interactions, is coupled with pronounced increase of emission due to decrease of aggregation caused quenching, characteristic for dispersed phase formation. The formed micelles are highly stable in solution, offering constant in time (days scale) emission signal. The important difference from other known systems is that the analyte binding induced change does not affect the chromophore group, but occurs in distant, terminal position of the side chain of the polymer. As a model system calcium selective optodes have been prepared. Thus obtained probes were characterized with broad analyte concentration range (from 10-7 to 10-3 M) emission signal increase. The turn-on response was observed within broad range of pH (6.3-8.9), with no sign of optical signal deterioration during 5 days contact with the analyte or more than two weeks storage.
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Affiliation(s)
- Anna Kisiel
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Barbara Baniak
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland.
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34
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Abstract
We present here a new type of fluoride ion optode, constituted by a highly lipophilic PVDF porous membrane modified with a liquid receptor layer containing the emission-active Si corrole F[Formula: see text] selective ionophore. For the optimized composition of the receptor layer, in acidic solutions an increase of Si-corrole emission was observed by increasing fluoride ion concentration, a behavior different from most porphyrinoid-based optical sensors. An observed linear dependence of the Si corrole emission intensity (read at 635 nm) was within the range 10[Formula: see text] to 10[Formula: see text] M of fluoride ions.
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Affiliation(s)
- Ewa Jaworska
- Department of Chemistry, University of Warsaw, Warsaw, Poland
| | - Fabrizio Caroleo
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | | | - Roberto Paolesse
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Agata Michalska
- Department of Chemistry, University of Warsaw, Warsaw, Poland
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35
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Stelmach E, Kaczmarczyk B, Maksymiuk K, Michalska A. Tailoring polythiophene cation-selective optodes for wide pH range sensing. Talanta 2020; 211:120663. [DOI: 10.1016/j.talanta.2019.120663] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 01/17/2023]
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36
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Wiktorczyk N, Kwiecińska‐Piróg J, Skowron K, Michalska A, Zalas‐Więcek P, Białucha A, Budzyńska A, Grudlewska‐Buda K, Prażyńska M, Gospodarek‐Komkowska E. Assessment of endoscope cleaning and disinfection efficacy, and the impact of endoscope storage on the microbiological safety level. J Appl Microbiol 2020; 128:1503-1513. [DOI: 10.1111/jam.14558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/06/2019] [Accepted: 12/16/2019] [Indexed: 01/11/2023]
Affiliation(s)
- N. Wiktorczyk
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - J. Kwiecińska‐Piróg
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - K. Skowron
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - A. Michalska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - P. Zalas‐Więcek
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - A. Białucha
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - A. Budzyńska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - K. Grudlewska‐Buda
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - M. Prażyńska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - E. Gospodarek‐Komkowska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
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37
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Stelmach E, Kałuza D, Konefał A, Maksymiuk K, Michalska A. pH Switchable Electrochemical and Optical Properties of Polyoctylthiophene – Pyrene Composites. ELECTROANAL 2020. [DOI: 10.1002/elan.201900677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Emilia Stelmach
- Faculty of ChemistryUniversity of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Dawid Kałuza
- Faculty of ChemistryUniversity of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Anna Konefał
- Faculty of ChemistryUniversity of Warsaw Pasteura 1 02-093 Warsaw Poland
| | | | - Agata Michalska
- Faculty of ChemistryUniversity of Warsaw Pasteura 1 02-093 Warsaw Poland
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38
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Jaworska E, Michalska A, Maksymiuk K. Implementation of a Chloride‐selective Electrode Into a Closed Bipolar Electrode System with Fluorimetric Readout. ELECTROANAL 2020. [DOI: 10.1002/elan.201900650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ewa Jaworska
- Faculty of ChemistryUniversity of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Agata Michalska
- Faculty of ChemistryUniversity of Warsaw Pasteura 1 02-093 Warsaw Poland
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39
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Kisiel A, Kałuża D, Paterczyk B, Maksymiuk K, Michalska A. Quantifying plasticizer leakage from ion-selective membranes – a nanosponge approach. Analyst 2020; 145:2966-2974. [DOI: 10.1039/c9an02621e] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The spontaneous process of release of plasticizers from membranes typically used in ion-selective sensors is an effect which limits the lifetime of sensors and comes with a risk of safety hazards.
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Affiliation(s)
- Anna Kisiel
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | - Dawid Kałuża
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | - Bohdan Paterczyk
- Laboratory of Electron and Confocal Microscopy
- Faculty of Biology
- University of Warsaw
- 02-096 Warsaw
- Poland
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40
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Baranowska-Korczyc A, Jaworska E, Strawski M, Paterczyk B, Maksymiuk K, Michalska A. A potentiometric sensor based on modified electrospun PVDF nanofibers – towards 2D ion-selective membranes. Analyst 2020; 145:5594-5602. [DOI: 10.1039/d0an00830c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Core–shell modified nanofiber mats were used as ion-selective membranes for the first time.
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Affiliation(s)
| | - Ewa Jaworska
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | | | - Bohdan Paterczyk
- Laboratory of Electron and Confocal Microscopy
- Faculty of Biology
- University of Warsaw
- 02-096 Warsaw
- Poland
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41
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Affiliation(s)
- Ewa Jaworska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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42
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Michalska A, Śliwiński Z, Pogorzelska J, Grabski M, Dudek J, Szmurło M, Szczukocki M. Congenital muscular torticollis - a proposal for treatment and physiotherapy. Med Rehabil 2019. [DOI: 10.5604/01.3001.0013.3728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Congenital muscular torticollis (CMT) is a condition manifested by unilateral thickening and/or shortening of the sternocleidomastoid muscle. It can lead to local or global consequences (i.e., forced position and limitation of mobility of the cervical spine and head, delay of motor development). Early recognition of CMT symptoms and the implementation of conservative treatment, considered effective in the majority of cases, are an important part of physical therapy in CMT. The aim of the study is to review literature presenting the methods of physical therapy in CMT and to create the authors’ own proposals for treatment, based on the results of this review. Based on subject-matter literature and our own experience, algorithms for the rehabilitation procedure have been proposed, presenting the general scheme of action in CMT and management depending on the clinical form and age of the child in whom therapy was started (up to 5 months and after 6 months). The authors’ proposed algorithm did not strictly specify the frequency of sessions with a physiotherapist, because this is the resultant of many factors. The main ones include the child's age on the day of initiation of therapy, the clinical form of torticollis, the presence of muscle tone disorders and/or skull asymmetry, but also, the correctness of performing exercises proposed as part of the home-based programme, regularity of therapy and compliance with postural programme principles.
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Affiliation(s)
- Agata Michalska
- Institute of Physiotherapy, Jan Kochanowski University in Kielce, Poland
| | - Zbigniew Śliwiński
- Institute of Physiotherapy, Jan Kochanowski University in Kielce, Poland
| | | | - Marek Grabski
- Institute of Physiotherapy, Jan Kochanowski University in Kielce, Poland
| | - Jolanta Dudek
- Instytut Fizjoterapii, Uniwersytet Jana Kochanowskiego w Kielcach
| | - Małgorzata Szmurło
- Małopolska Centre for Children’s Rehabilitation in Radziszów, St. Louis Regional Specialised Children's Hospital in Kraków, Poland
| | - Maciej Szczukocki
- 1st Pediatric Clinic, Ward of Children’s Diseases, Provincial Hospital in Kielce, Poland
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43
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Lachowicz S, Michalska A, Lech K, Majerska J, Oszmiański J, Figiel A. Comparison of the effect of four drying methods on polyphenols in saskatoon berry. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.05.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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44
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Kałuża D, Michalska A, Maksymiuk K. Voltammetric Properties of All‐solid State Ion‐selective Electrodes with Multiwalled Carbon Nanotubes‐poly(3‐octylthiophene‐2,5‐diyl) Nanocomposite Transducer. ELECTROANAL 2019. [DOI: 10.1002/elan.201900380] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dawid Kałuża
- Faculty of ChemistryUniversity of Warsaw, Pasteura 1 02-093 Warsaw Poland
| | - Agata Michalska
- Faculty of ChemistryUniversity of Warsaw, Pasteura 1 02-093 Warsaw Poland
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45
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Kałuża D, Jaworska E, Mazur M, Maksymiuk K, Michalska A. Multiwalled Carbon Nanotubes-Poly(3-octylthiophene-2,5-diyl) Nanocomposite Transducer for Ion-Selective Electrodes: Raman Spectroscopy Insight into the Transducer/Membrane Interface. Anal Chem 2019; 91:9010-9017. [PMID: 31199120 DOI: 10.1021/acs.analchem.9b01286] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
An approach to overcome drawbacks of well-established transducer materials for all-solid-state ion-selective electrodes is proposed; it is based on the formulation of the nanocomposite of multiwalled carbon nanotubes (MWCNTs) and poly(3-octylthiophene-2,5-diyl) (POT), in which the polymer is used as a dispersing agent for carbon nanotubes. Thus, the obtained material is characterized with unique properties that are important for its application as solid contact in ion-selective electrodes, including high: electronic conductivity, capacitance, and lipophilicity. Performance of the obtained all-solid-state electrodes was studied using a standard approach as well as Raman spectroscopy to allow insight into distribution of the transducer material within the sensor phases: the membrane and the transducer. Application of the composite prevents unwanted partition of POT to the membrane phase, thus eliminating the risk of alteration of the sensor performance due to uncontrolled change in the membrane composition.
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Affiliation(s)
- Dawid Kałuża
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , Warsaw 02-093 , Poland
| | - Ewa Jaworska
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , Warsaw 02-093 , Poland
| | - Maciej Mazur
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , Warsaw 02-093 , Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , Warsaw 02-093 , Poland
| | - Agata Michalska
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , Warsaw 02-093 , Poland
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46
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Antonczyk A, Krist B, Sajek M, Michalska A, Piaszyk-Borychowska A, Plens-Galaska M, Wesoly J, Bluyssen HAR. Direct Inhibition of IRF-Dependent Transcriptional Regulatory Mechanisms Associated With Disease. Front Immunol 2019; 10:1176. [PMID: 31178872 PMCID: PMC6543449 DOI: 10.3389/fimmu.2019.01176] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/09/2019] [Indexed: 12/24/2022] Open
Abstract
Interferon regulatory factors (IRFs) are a family of homologous proteins that regulate the transcription of interferons (IFNs) and IFN-induced gene expression. As such they are important modulating proteins in the Toll-like receptor (TLR) and IFN signaling pathways, which are vital elements of the innate immune system. IRFs have a multi-domain structure, with the N-terminal part acting as a DNA binding domain (DBD) that recognizes a DNA-binding motif similar to the IFN-stimulated response element (ISRE). The C-terminal part contains the IRF-association domain (IAD), with which they can self-associate, bind to IRF family members or interact with other transcription factors. This complex formation is crucial for DNA binding and the commencing of target-gene expression. IRFs bind DNA and exert their activating potential as homo or heterodimers with other IRFs. Moreover, they can form complexes (e.g., with Signal transducers and activators of transcription, STATs) and collaborate with other co-acting transcription factors such as Nuclear factor-κB (NF-κB) and PU.1. In time, more of these IRF co-activating mechanisms have been discovered, which may play a key role in the pathogenesis of many diseases, such as acute and chronic inflammation, autoimmune diseases, and cancer. Detailed knowledge of IRFs structure and activating mechanisms predisposes IRFs as potential targets for inhibition in therapeutic strategies connected to numerous immune system-originated diseases. Until now only indirect IRF modulation has been studied in terms of antiviral response regulation and cancer treatment, using mainly antisense oligonucleotides and siRNA knockdown strategies. However, none of these approaches so far entered clinical trials. Moreover, no direct IRF-inhibitory strategies have been reported. In this review, we summarize current knowledge of the different IRF-mediated transcriptional regulatory mechanisms and how they reflect the diverse functions of IRFs in homeostasis and in TLR and IFN signaling. Moreover, we present IRFs as promising inhibitory targets and propose a novel direct IRF-modulating strategy employing a pipeline approach that combines comparative in silico docking to the IRF-DBD with in vitro validation of IRF inhibition. We hypothesize that our methodology will enable the efficient identification of IRF-specific and pan-IRF inhibitors that can be used for the treatment of IRF-dependent disorders and malignancies.
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Affiliation(s)
- Aleksandra Antonczyk
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Bart Krist
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Malgorzata Sajek
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Agata Michalska
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Anna Piaszyk-Borychowska
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Martyna Plens-Galaska
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Joanna Wesoly
- Laboratory of High Throughput Technologies, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Hans A R Bluyssen
- Department of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
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47
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Stelmach E, Kłucińska K, Maksymiuk K, Michalska A. Rational design of nanoptodes architecture – Towards multifunctional sensors. Talanta 2019; 196:226-230. [DOI: 10.1016/j.talanta.2018.12.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/11/2018] [Accepted: 12/14/2018] [Indexed: 11/16/2022]
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48
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Baranowska-Korczyc A, Stelmach E, Paterczyk B, Maksymiuk K, Michalska A. Ultrasmall self-assembly poly(N-isopropylacrylamide-butyl acrylate) (polyNIPAM-BA) thermoresponsive nanoparticles. J Colloid Interface Sci 2019; 542:317-324. [DOI: 10.1016/j.jcis.2019.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 12/27/2022]
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49
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Baranowska-Korczyc A, Maksymiuk K, Michalska A. Electrospun nanofiber supported optodes: scaling down the receptor layer thickness to nanometers – towards 2D optodes. Analyst 2019; 144:4667-4676. [DOI: 10.1039/c9an00756c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel type of optode sensor is proposed using electrospun nanofibers as the supporting inert material.
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50
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Jaworska E, Pawłowski P, Michalska A, Maksymiuk K. Advantages of Amperometric Readout Mode of Ion-selective Electrodes under Potentiostatic Conditions. ELECTROANAL 2018. [DOI: 10.1002/elan.201800649] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ewa Jaworska
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
| | - Paweł Pawłowski
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
| | - Agata Michalska
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
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