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Caliskan F, Ozdemir IN, Zeydan A, Kandemir C, Yilmaz R, Karaoz E, Adas GT. The role of intensive care nurses in cellular treatments during the COVID-19 pandemic. Nurs Crit Care 2024; 29:58-64. [PMID: 37905845 DOI: 10.1111/nicc.12989] [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: 04/05/2023] [Revised: 09/15/2023] [Accepted: 10/05/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND Today, the use of cellular therapies as an effective treatment in the field of health is increasing. In the COVID-19 pandemic or similar situations, cellular therapies may be sometimes life-saving. The COVID-19 pandemic has shown us that the training of intensive care nurses in special cases, such as cellular therapies, is insufficient. AIM The study aimed to determine the duties, responsibilities and training of intensive care nurses on mesenchymal stem cells (MSCs) transplantation to critically ill patients during the COVID-19 pandemic. STUDY DESIGN This descriptive and retrospective study was conducted on 107 critically ill patients diagnosed with COVID-19 infection and followed up in the intensive care unit (ICU) between April 2020 and April 2022. Each patient was transplanted MSCs by intravenous infusion three times. Before starting cellular therapy applications, intensive care nurses were selected to work on this treatment modality. Each nurse was given theoretical and practical training by experienced instructors. RESULTS Intensive care nurses trained for MSCs transplants took part in the pre-application, preparation, application and post-application period. MSCs were checked by the ICU nurses in the pre-application period. Patients' vital signs, existing catheters, consciousness status and parameters were checked by nurses in the preparation and application period. No side effects and complications were observed in patients during MSCs transplantation and within the first 24 h. Patients' late complications and mortality were recorded by nurses during the post-application periods. CONCLUSIONS We recommend that nurses working especially in Level 3 ICUs receive training and certification in cellular therapies, especially in hospitals where advanced/cellular treatments are applied. RELEVANCE TO CLINICAL PRACTICE Intensive care nurses are actively involved in every phase of the application of MSCs. Especially before such special practices, which came to the fore with the COVID-19 pandemic, training should be organized for intensive care nurses.
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Affiliation(s)
- Figen Caliskan
- Nursing Department, Trakya University, Health Sciences Faculty, Nursing Education, Edirne, Turkey
| | - Irem Nur Ozdemir
- Department of Research and R&D, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Health Science University, Istanbul, Turkey
| | - Ayten Zeydan
- Department of Anesthesia and Intensive Care, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Health Science University, Istanbul, Turkey
| | - Canan Kandemir
- Department of Anesthesia and Intensive Care, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Health Science University, Istanbul, Turkey
| | - Rabia Yilmaz
- Department of Anesthesia and Intensive Care, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Health Science University, Istanbul, Turkey
| | - Erdal Karaoz
- Center for Stem Cell and Tissue Engineering Research & Practice, Istinye University, Istanbul, Turkey
- Faculty of Medicine, Department of Histology & Embryology, Istinye University, Istanbul, Turkey
- Center for Regenerative Medicine and Stem Cell Manufacturing (LivMedCell), Liv Hospital, Istanbul, Turkey
| | - Gokhan Tolga Adas
- Department of Surgery, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Health Science University, Istanbul, Turkey
- Head of Stem Cell and Gene Therapies Application and Research Center, Health Science University, Istanbul, Turkey
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2
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Cardoso-Arenas S, Clement H, Arenas I, Olvera F, Zamudio F, Caliskan F, Corrales-García LL, Corzo G. Recombinant expression and antigenicity of two peptide families of neurotoxins from Androctonus sp. J Venom Anim Toxins Incl Trop Dis 2022; 28:e20220026. [PMID: 36578820 PMCID: PMC9769139 DOI: 10.1590/1678-9199-jvatitd-2022-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/23/2022] [Indexed: 12/23/2022] Open
Abstract
Background Scorpion neurotoxins such as those that modify the mammalian voltage-gated sodium ion channels (Nav) are the main responsible for scorpion envenomation. Their neutralization is crucial in the production of antivenoms against scorpion stings. Methods In the present study, two in silico designed genes - one that codes for a native neurotoxin from the venom of the Anatolian scorpion Androctonus crassicauda, named Acra 4 - and another non-native toxin - named consensus scorpion toxin (SccTx) obtained from the alignment of the primary structures of the most toxic neurotoxins from the Middle Eastern and North African scorpions - were recombinantly expressed in E. coli Origami. Results Following bacterial expression, the two expressed neurotoxins, hereafter named HisrAcra4 and HisrSccTx, were obtained from inclusion bodies. Both recombinant neurotoxins were obtained in multiple Cys-Cys isoforms. After refolding, the active protein fractions were identified with molecular masses of 8,947.6 and 9,989.1 Da for HisrAcra4 and HisrSccTx, respectively, which agreed with their expected theoretical masses. HisrAcra4 and HisrSccTx were used as antigens to immunize two groups of rabbits, to produce either anti-HisrAcra4 or anti-HisrSccTx serum antibodies, which in turn could recognize and neutralize neurotoxins from venoms of scorpion species from the Middle East and North Africa. The antibodies obtained from rabbits neutralized the 3LD50 of Androctonus australis, Leiurus quinquestriatus hebraeus and Buthus occitanus venoms, but they did not neutralize A. crassicauda and A. mauritanicus venoms. In addition, the anti-HisrAcra4 antibodies did not neutralize any of the five scorpion venoms tested. However, an antibody blend of anti-HisrAcra4 and anti-HisrSccTx was able to neutralize A. crassicauda and A. mauritanicus venoms. Conclusions Two recombinant Nav neurotoxins, from different peptide families, were used as antigens to generate IgGs for neutralizing scorpion venoms of species from the Middle East and North Africa.
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Affiliation(s)
- Samuel Cardoso-Arenas
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico
| | - Herlinda Clement
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico
| | - Iván Arenas
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico
| | - Felipe Olvera
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico
| | - Fernando Zamudio
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico
| | - Figen Caliskan
- Department of Biology, Faculty of Science and Letters, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Ligia Luz Corrales-García
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico.,Department of Food Sciences, School of Pharmaceutical and Food Sciences, University of Antioquia (UdeA), Medellín, Colombia
| | - Gerardo Corzo
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Morelos, Mexico.,Correspondence:
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3
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von Reumont BM, Anderluh G, Antunes A, Ayvazyan N, Beis D, Caliskan F, Crnković A, Damm M, Dutertre S, Ellgaard L, Gajski G, German H, Halassy B, Hempel BF, Hucho T, Igci N, Ikonomopoulou MP, Karbat I, Klapa MI, Koludarov I, Kool J, Lüddecke T, Ben Mansour R, Vittoria Modica M, Moran Y, Nalbantsoy A, Ibáñez MEP, Panagiotopoulos A, Reuveny E, Céspedes JS, Sombke A, Surm JM, Undheim EAB, Verdes A, Zancolli G. Modern venomics-Current insights, novel methods, and future perspectives in biological and applied animal venom research. Gigascience 2022; 11:6588117. [PMID: 35640874 PMCID: PMC9155608 DOI: 10.1093/gigascience/giac048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 12/11/2022] Open
Abstract
Venoms have evolved >100 times in all major animal groups, and their components, known as toxins, have been fine-tuned over millions of years into highly effective biochemical weapons. There are many outstanding questions on the evolution of toxin arsenals, such as how venom genes originate, how venom contributes to the fitness of venomous species, and which modifications at the genomic, transcriptomic, and protein level drive their evolution. These questions have received particularly little attention outside of snakes, cone snails, spiders, and scorpions. Venom compounds have further become a source of inspiration for translational research using their diverse bioactivities for various applications. We highlight here recent advances and new strategies in modern venomics and discuss how recent technological innovations and multi-omic methods dramatically improve research on venomous animals. The study of genomes and their modifications through CRISPR and knockdown technologies will increase our understanding of how toxins evolve and which functions they have in the different ontogenetic stages during the development of venomous animals. Mass spectrometry imaging combined with spatial transcriptomics, in situ hybridization techniques, and modern computer tomography gives us further insights into the spatial distribution of toxins in the venom system and the function of the venom apparatus. All these evolutionary and biological insights contribute to more efficiently identify venom compounds, which can then be synthesized or produced in adapted expression systems to test their bioactivity. Finally, we critically discuss recent agrochemical, pharmaceutical, therapeutic, and diagnostic (so-called translational) aspects of venoms from which humans benefit.
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Affiliation(s)
- Bjoern M von Reumont
- Goethe University Frankfurt, Institute for Cell Biology and Neuroscience, Department for Applied Bioinformatics, 60438 Frankfurt am Main, Germany.,LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Frankfurt, Senckenberganlage 25, 60235 Frankfurt, Germany.,Justus Liebig University Giessen, Institute for Insectbiotechnology, Heinrich Buff Ring 26-32, 35396 Giessen, Germany
| | - Gregor Anderluh
- Department of Molecular Biology and Nanobiotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia
| | - Agostinho Antunes
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Porto, Portugal.,Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Naira Ayvazyan
- Orbeli Institute of Physiology of NAS RA, Orbeli ave. 22, 0028 Yerevan, Armenia
| | - Dimitris Beis
- Developmental Biology, Centre for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens 11527, Greece
| | - Figen Caliskan
- Department of Biology, Faculty of Science and Letters, Eskisehir Osmangazi University, TR-26040 Eskisehir, Turkey
| | - Ana Crnković
- Department of Molecular Biology and Nanobiotechnology, National Institute of Chemistry, 1000 Ljubljana, Slovenia
| | - Maik Damm
- Technische Universität Berlin, Department of Chemistry, Straße des 17. Juni 135, 10623 Berlin, Germany
| | | | - Lars Ellgaard
- Department of Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Goran Gajski
- Institute for Medical Research and Occupational Health, Mutagenesis Unit, Ksaverska cesta 2, 10000 Zagreb, Croatia
| | - Hannah German
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, The Netherlands
| | - Beata Halassy
- University of Zagreb, Centre for Research and Knowledge Transfer in Biotechnology, Trg Republike Hrvatske 14, 10000 Zagreb, Croatia
| | - Benjamin-Florian Hempel
- BIH Center for Regenerative Therapies BCRT, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Tim Hucho
- Translational Pain Research, Department of Anesthesiology and Intensive Care Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany
| | - Nasit Igci
- Nevsehir Haci Bektas Veli University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, 50300 Nevsehir, Turkey
| | - Maria P Ikonomopoulou
- Madrid Institute for Advanced Studies in Food, Madrid,E28049, Spain.,The University of Queensland, St Lucia, QLD 4072, Australia
| | - Izhar Karbat
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Maria I Klapa
- Metabolic Engineering and Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research & Technology Hellas (FORTH/ICE-HT), Patras GR-26504, Greece
| | - Ivan Koludarov
- Justus Liebig University Giessen, Institute for Insectbiotechnology, Heinrich Buff Ring 26-32, 35396 Giessen, Germany
| | - Jeroen Kool
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, The Netherlands
| | - Tim Lüddecke
- LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Frankfurt, Senckenberganlage 25, 60235 Frankfurt, Germany.,Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, 35392 Gießen, Germany
| | - Riadh Ben Mansour
- Department of Life Sciences, Faculty of Sciences, Gafsa University, Campus Universitaire Siidi Ahmed Zarrouk, 2112 Gafsa, Tunisia
| | - Maria Vittoria Modica
- Dept. of Biology and Evolution of Marine Organisms (BEOM), Stazione Zoologica Anton Dohrn, Via Po 25c, I-00198 Roma, Italy
| | - Yehu Moran
- Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, Faculty of Science, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Ayse Nalbantsoy
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 Bornova, Izmir, Turkey
| | - María Eugenia Pachón Ibáñez
- Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Virgen del Rocío University Hospital, Institute of Biomedicine of Seville, 41013 Sevilla, Spain.,CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Alexios Panagiotopoulos
- Metabolic Engineering and Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research & Technology Hellas (FORTH/ICE-HT), Patras GR-26504, Greece.,Animal Biology Division, Department of Biology, University of Patras, Patras, GR-26500, Greece
| | - Eitan Reuveny
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Javier Sánchez Céspedes
- Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Virgen del Rocío University Hospital, Institute of Biomedicine of Seville, 41013 Sevilla, Spain.,CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Andy Sombke
- Department of Evolutionary Biology, University of Vienna, Djerassiplatz 1, 1030 Vienna, Austria
| | - Joachim M Surm
- Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, Faculty of Science, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Eivind A B Undheim
- University of Oslo, Centre for Ecological and Evolutionary Synthesis, Postboks 1066 Blindern 0316 Oslo, Norway
| | - Aida Verdes
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales, José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - Giulia Zancolli
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
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4
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Modica MV, Ahmad R, Ainsworth S, Anderluh G, Antunes A, Beis D, Caliskan F, Serra MD, Dutertre S, Moran Y, Nalbantsoy A, Oukkache N, Pekar S, Remm M, von Reumont BM, Sarigiannis Y, Tarallo A, Tytgat J, Undheim EAB, Utkin Y, Verdes A, Violette A, Zancolli G. Corrigendum to: The new COST Action European Venom Network (EUVEN)-synergy and future perspectives of modern venomics. Gigascience 2021; 10:6489122. [PMID: 34966929 PMCID: PMC8716359 DOI: 10.1093/gigascience/giab102] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Maria Vittoria Modica
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
| | - Rafi Ahmad
- Department of Biotechnology, Inland Norway University of Applied Sciences, Holsetgata 22, 2318 Hamar, Norway
| | - Stuart Ainsworth
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, L3 5QA, Liverpool, UK
| | - Gregor Anderluh
- National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Agostinho Antunes
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Av. General Norton de Matos, 4450-208 Porto, Portugal.,Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Dimitris Beis
- Biomedical Research Foundation, Academy of Athens, 4 Soranou Ephessiou St., 115 27 Athens, Greece
| | - Figen Caliskan
- Eskisehir Osmangazi University, Faculty of Science and Letters, Department of Biology, TR-26040 Eskisehir, Turkey
| | - Mauro Dalla Serra
- Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Via De Marini 6 - Torre di Francia, 16149 Genova, Italy
| | - Sebastien Dutertre
- IBMM, Universite de Montpellier, CNRS, ´ ENSCM, Place Eugene Bataillon, 34095 Montpellier, France
| | - Yehu Moran
- Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram 9190401 Jerusalem, Israel
| | - Ayse Nalbantsoy
- Ege University, Bioengineering Department, 180 Bornova, 35040 Izmir, Turkey
| | - Naoual Oukkache
- Institut Pasteur of Morocco, 1 Place Louis Pasteur, 20100 Casablanca, Morocco
| | - Stano Pekar
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czechia
| | - Maido Remm
- Department of Bioinformatics, University of Tartu, IMCB, Riia 23, 51010, Tartu, Estonia
| | - Bjoern Marcus von Reumont
- Department of Insect Biotechnology, Justus Liebig University, Winchester Str. 2, 35394 Giessen, Germany.,LOEWE Center for Translational Biodiversity Genomics, Senckenberganlage 25 D-60325 Frankfurt/Main, Germany
| | - Yiannis Sarigiannis
- Department of Life and Health Sciences, University of Nicosia, 46 Makedonitissas Avenue, CY-2417 Nicosia, Cyprus
| | - Andrea Tarallo
- Department of Research infrastructures for Marine Biological Resources, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
| | - Jan Tytgat
- Department of of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Eivind Andreas Baste Undheim
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, 1066 Blindern, 0316 Oslo, Norway
| | - Yuri Utkin
- Laboratory of Molecular Toxinology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya, 16/10, 117997 Moscow, Russian Federation
| | - Aida Verdes
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Cient´ıficas, Calle de Jose Guti ´ errez ´ Abascal 2, 28006 Madrid, Spain.,Department of Life Science, Natural History Museum, Cromwell Rd, South Kensington, London SW7 5BD, UK
| | - Aude Violette
- Alphabiotoxine Laboratory, B-7911 Montroeul-au-Bois, Belgium
| | - Giulia Zancolli
- Department of Ecology and Evolution, University of Lausanne, UNIL Sorge Le Biophore, CH - 1015 Lausanne, Switzerland
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5
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Modica MV, Ahmad R, Ainsworth S, Anderluh G, Antunes A, Beis D, Caliskan F, Serra MD, Dutertre S, Moran Y, Nalbantsoy A, Oukkache N, Pekar S, Remm M, von Reumont BM, Sarigiannis Y, Tarallo A, Tytgat J, Undheim EAB, Utkin Y, Verdes A, Violette A, Zancolli G. The new COST Action European Venom Network (EUVEN)-synergy and future perspectives of modern venomics. Gigascience 2021; 10:6187861. [PMID: 33764467 PMCID: PMC7992391 DOI: 10.1093/gigascience/giab019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/24/2021] [Accepted: 02/28/2021] [Indexed: 11/29/2022] Open
Abstract
Venom research is a highly multidisciplinary field that involves multiple subfields of
biology, informatics, pharmacology, medicine, and other areas. These different research
facets are often technologically challenging and pursued by different teams lacking
connection with each other. This lack of coordination hampers the full development of
venom investigation and applications. The COST Action CA19144–European Venom Network was
recently launched to promote synergistic interactions among different stakeholders and
foster venom research at the European level.
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Affiliation(s)
- Maria Vittoria Modica
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
| | - Rafi Ahmad
- Department of Biotechnology, Inland Norway University of Applied Sciences, Holsetgata 22, 2318 Hamar, Norway
| | - Stuart Ainsworth
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, L3 5QA, Liverpool, UK
| | - Gregor Anderluh
- National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Agostinho Antunes
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Av. General Norton de Matos, 4450-208 Porto, Portugal.,Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Dimitris Beis
- Biomedical Research Foundation, Academy of Athens, 4 Soranou Ephessiou St., 115 27 Athens, Greece
| | - Figen Caliskan
- Eskisehir Osmangazi University, Faculty of Science and Letters, Department of Biology, TR-26040 Eskisehir, Turkey
| | - Mauro Dalla Serra
- Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Via De Marini 6 - Torre di Francia, 16149 Genova, Italy
| | - Sebastien Dutertre
- IBMM, Université de Montpellier, CNRS, ENSCM, Place Eugene Bataillon, 34095 Montpellier, France
| | - Yehu Moran
- Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram 9190401 Jerusalem, Israel
| | - Ayse Nalbantsoy
- Ege University, Bioengineering Department, 180 Bornova, 35040 Izmir, Turkey
| | - Naoual Oukkache
- Institut Pasteur of Morocco, 1 Place Louis Pasteur, 20100 Casablanca, Morocco
| | - Stano Pekar
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czechia
| | - Maido Remm
- Department of Bioinformatics, University of Tartu, IMCB, Riia 23, 51010, Tartu, Estonia
| | - Bjoern Marcus von Reumont
- Department of Insect Biotechnology, Justus Liebig University, Winchester Str. 2, 35394 Giessen, Germany.,LOEWE Center for Translational Biodiversity Genomics, Senckenberganlage 25 D-60325 Frankfurt/Main, Germany
| | - Yiannis Sarigiannis
- Department of Life and Health Sciences, University of Nicosia, 46 Makedonitissas Avenue, CY-2417 Nicosia, Cyprus
| | - Andrea Tarallo
- Department of Research infrastructures for Marine Biological Resources, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
| | - Jan Tytgat
- Department of of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Eivind Andreas Baste Undheim
- Centre for Ecological and Evolutionary Synthesis,Department of Biosciences, University of Oslo, 1066 Blindern, 0316 Oslo, Norway
| | - Yuri Utkin
- Laboratory of Molecular Toxinology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya, 16/10, 117997 Moscow, Russian Federation
| | - Aida Verdes
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, Calle de José Gutiérrez Abascal 2, 28006 Madrid, Spain.,Department of Life Science, Natural History Museum, Cromwell Rd, South Kensington, London SW7 5BD, UK
| | - Aude Violette
- Alphabiotoxine Laboratory, B-7911 Montroeul-au-Bois, Belgium
| | - Giulia Zancolli
- Department of Ecology and Evolution, University of Lausanne, UNIL Sorge Le Biophore, CH - 1015 Lausanne, Switzerland
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6
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Diego-García E, Caliskan F, Tytgat J. The Mediterranean scorpion Mesobuthus gibbosus (Scorpiones, Buthidae): transcriptome analysis and organization of the genome encoding chlorotoxin-like peptides. BMC Genomics 2014; 15:295. [PMID: 24746279 PMCID: PMC4234519 DOI: 10.1186/1471-2164-15-295] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 04/09/2014] [Indexed: 11/29/2022] Open
Abstract
Background Transcrof toxin genes of scorpion species have been published. Up to this moment, no information on the gene characterization of M. gibbosus is available. Results This study provides the first insight into gene expression in venom glands from M. gibbosus scorpion. A cDNA library was generated from the venom glands and subsequently analyzed (301 clones). Sequences from 177 high-quality ESTs were grouped as 48 Mgib sequences, of those 48 sequences, 40 (29 “singletons” and 11 “contigs”) correspond with one or more ESTs. We identified putative precursor sequences and were grouped them in different categories (39 unique transcripts, one with alternative reading frames), resulting in the identification of 12 new toxin-like and 5 antimicrobial precursors (transcripts). The analysis of the gene families revealed several new components categorized among various toxin families with effect on ion channels. Sequence analysis of a new KTx precursor provides evidence to validate a new KTx subfamily (α-KTx 27.x). A second part of this work involves the genomic organization of three Meg-chlorotoxin-like genes (ClTxs). Genomic DNA sequence reveals close similarities (presence of one same-phase intron) with the sole genomic organization of chlorotoxins ever reported (from M. martensii). Conclusions Transcriptome analysis is a powerful strategy that provides complete information of the gene expression and molecular diversity of the venom glands (telson). In this work, we generated the first catalogue of the gene expression and genomic organization of toxins from M. gibbosus. Our result represents a relevant contribution to the knowledge of toxin transcripts and complementary information related with other cell function proteins and venom peptide transcripts. The genomic organization of the chlorotoxin genes may help to understand the diversity of this gene family.
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Affiliation(s)
| | | | - Jan Tytgat
- Toxicology and Pharmacology, University of Leuven, Campus Gasthuisberg O& N2,PO Box 922, Herestraat 49, 3000 Leuven, Belgium.
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Caliskan F, Ergene E, Sogut I, Hatipoglu I, Basalp A, Sivas H, Kanbak G. Biological assays on the effects of Acra3 peptide from Turkish scorpion Androctonus crassicauda venom on a mouse brain tumor cell line (BC3H1) and production of specific monoclonal antibodies. Toxicon 2013; 76:350-61. [PMID: 24055552 DOI: 10.1016/j.toxicon.2013.09.009] [Citation(s) in RCA: 9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 09/08/2013] [Accepted: 09/11/2013] [Indexed: 11/25/2022]
Abstract
Constitutes of the venom scorpion are a rich source of low molecular mass peptides which are toxic to various organisms, including man. Androctonus crassicauda is one of the scorpions from the Southeastern Anatolia of Turkey with public health importance. This work is focused on the investigation of biological effects of Acra3 peptide from Androctonus crassicauda. For this purpose, Acra3 isolated from crude venoms was tested for its cytotoxicity on BC3H1 mouse brain tumor cells using tetrazolium salt cleavage and lactate dehydrogenase activity assays. To determine whether the cytotoxic effects of Acra3 was related to the induction of apoptosis, the morphology of the cells and the nuclear fragmentation was examined by using Acridin Orange staining and DNA fragmentation assay, respectively. Caspase 3 and caspase 9 activities were measured spectrophotometrically and flow cytometric assay was performed using Annexin-V FITC and Propidium Iodide staining. Furthermore toxic peptide Acra3 was used as an antigen for immunological studies. Results showed that Acra3 exerted very strong cytotoxic effect on BC3H1 cells with an IC50 value of 5 μg/ml. Exposure of the cells to 0.1 and 0.5 μg/ml was resulted in very strong appearance of the apoptotic morphology in a dose dependent manner. On the other side, not any DNA fragmentation was observed after treatment of the cells. Caspase 3 and 9 activities were slightly decreased with Acra3. Results from flow cytometry and lactate dehydrogenase activity assays indicate that Acra3 exerts its effects by inducing a stronger necrosis than apoptosis in BC3H1 cells. To evaluate its immunogenicity, monoclonal antibody (MAb) specific for Acra3 antigen (5B9) was developed by hybridoma technology using spleen and lymph nodes of mice and immunoglobulin type of antibody was found to be IgM. We suggest that Acra3 may exert its effects by inducing both necrotic and apoptotic pathway in some way on mouse brain tumor cells. These findings will be useful for understanding the mechanism of cell death caused by venom in vitro. Anti-Acra3 monoclonal antibody can be further used as a bioactive tools for exploring the structure/function relationship and the pharmacological mechanism of scorpion peptide neurotoxins.
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Affiliation(s)
- Figen Caliskan
- Department of Biology, Faculty of Science and Art, Eskisehir Osmangazi University, Eskisehir, Turkey.
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Diego-García E, Peigneur S, Debaveye S, Gheldof E, Tytgat J, Caliskan F. Novel potassium channel blocker venom peptides from Mesobuthus gibbosus (Scorpiones: Buthidae). Toxicon 2012; 61:72-82. [PMID: 23142506 DOI: 10.1016/j.toxicon.2012.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [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: 06/25/2012] [Revised: 09/27/2012] [Accepted: 10/23/2012] [Indexed: 11/19/2022]
Abstract
In the present study, we report for the first time, the molecular, biochemical and electrophysiological characterization of the components present in the soluble venom from Mesobuthus gibbosus (Brullé, 1832). According to the epidemiological and clinical situation of scorpion envenomation cases M. gibbosus scorpion is one of the most important health-threatening species of Turkey. Despite the medical importance reported for M. gibbosus, there is no additional information on toxin peptides and venom components to clarify the toxic effect of the M. gibbosus sting. Biochemical characterization of the venom was performed using different protocols and techniques following a bioassay-guided strategy (HPLC, mass spectrometry and Edman degradation sequencing). Venom fractions were tested in electrophysiological assays on a panel of six K(+) channels (K(v)1.1-1.6) by using the two-electrode voltage clamp technique. Three new α-KTx peptides were found and called MegKTx1, MegKTx2 and MegKTx3 (M. gibbosus, K(+) channel toxin number 1-3). A cDNA library from the telson was constructed and specific screening of transcripts was performed. Biochemical and molecular characterization of MegKTx peptides and transcripts shows a relation with toxins of three different α-KTx subfamilies (α-KTx3.x, α-KTx9.x and α-KTx16.x).
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Affiliation(s)
- Elia Diego-García
- Laboratory of Toxicology, University of Leuven (KULeuven), Campus Gasthuisberg, O&N 2, PO Box 922, Herestraat 49, 3000 Leuven, Belgium
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Caliskan F, García BI, Coronas FIV, Restano-Cassulini R, Korkmaz F, Sahin Y, Corzo G, Possani LD. Purification and cDNA cloning of a novel neurotoxic peptide (Acra3) from the scorpion Androctonus crassicauda. Peptides 2012; 37:106-12. [PMID: 22819772 DOI: 10.1016/j.peptides.2012.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 07/10/2012] [Accepted: 07/10/2012] [Indexed: 01/13/2023]
Abstract
Androctonus crassicauda is one of the Southeastern Anatolian scorpions of Turkey with ethno-medical and toxicological importance. Two toxic peptides (Acra1 and Acra2) were isolated and characterized from the venom of this scorpion. In this communication, the isolation of an additional toxin (Acra3) by chromatographic separations (HPLC and TSK-gel sulfopropyl) and its chemical and functional characterization is reported. Acra3 is a 7620Da molecular weight peptide, with 66 amino acid residues crosslinked by four disulfide bridges. The gene coding for this peptide was cloned and sequenced. Acra3 is anticipated to undergo post-translational modifications at the C-terminal region, having an amidated serine as last residue. Injection of Acra3 induces severe neurotoxic events in mice, such as: excitability and convulsions, leading to the death of the animals within a few minutes after injection. Electrophysiological assays conducted with pure Acra3, using cells that specifically expressed sodium channels (Nav1.1-Nav1.6) showed no clear effect. The exact molecular target of Acra3 remained undiscovered, similar to three other scorpion peptides that clustered very closely in the phylogenetic tree included here. The exact target of these four peptides is not very clear.
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Affiliation(s)
- Figen Caliskan
- Department of Biology, Faculty of Science and Art, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
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Diego-García E, Peigneur S, Debaveye S, Gheldof E, Tytgat J, Caliskan F. 167. Novel Potassium Channel Blocker Venom Peptides from Mesobuthus gibbosus (Scorpiones: Buthidae). Toxicon 2012. [DOI: 10.1016/j.toxicon.2012.04.168] [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: 11/25/2022]
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Caliskan F, Quintero-Hernández V, Restano-Cassulini R, Batista CVF, Zamudio FZ, Coronas FI, Possani LD. Turkish scorpion Buthacus macrocentrus: general characterization of the venom and description of Bu1, a potent mammalian Na⁺-channel α-toxin. Toxicon 2012; 59:408-15. [PMID: 22245624 DOI: 10.1016/j.toxicon.2011.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 12/26/2011] [Accepted: 12/29/2011] [Indexed: 11/25/2022]
Abstract
The venom of the scorpion Buthacus macrocentrus of Turkey was fractionated by high performance liquid chromatography (HPLC) and its mass finger print analysis was obtained by spectrometry. More than 70 different fractions were obtained, allowing the determination of the molecular masses of at least 60 peptides ranging between 648 and 44,336 Da. The venom is enriched with peptides containing molecular masses between 3200-4500 Da, and 6000-7500 Da. They very likely correspond to K⁺-channel and Na⁺-channel specific peptides, respectively, as expected from venoms of scorpions of the family Buthidae, already determined for other species. The major component obtained from HPLC was shown to be lethal to mice and was further purified and characterized. It contains 65 amino acid residues maintained closely packed by 4 disulfide bridges, and shows a molecular weight of 7263 Da. Additionally, a cDNA from the venomous glands of this scorpion was used in conjunction with sequence data from Edman degradation and mass spectrometry for cloning the gene that codes for Bu1 as we named this toxin. This gene codes for a 67 amino acid residues peptide, where the two last are eliminated post-translationally for production of an amidated C-terminal arginine. Its sequence is closely related to toxins from the species Leiurus quinquestriatus, as revealed by a phylogenetic tree analysis. Electrophysiological results conducted with Bu1 using patch-clamp techniques indicate that it modifies the Na⁺ currents, in a similar way as other well known α-scorpion toxins. These results support the conclusion that this species of scorpions is dangerous to humans, having an epidemiological interest for the country.
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Affiliation(s)
- F Caliskan
- Department of Biology, Faculty of Science and Art, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
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Caliskan F, García BI, Coronas FIV, Batista CVF, Zamudio FZ, Possani LD. Characterization of venom components from the scorpion Androctonus crassicauda of Turkey: Peptides and genes. Toxicon 2006; 48:12-22. [PMID: 16762386 DOI: 10.1016/j.toxicon.2006.04.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [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: 02/24/2006] [Accepted: 04/10/2006] [Indexed: 11/25/2022]
Abstract
The soluble venom from the scorpion Androctonus crassicauda was fractionated by high performance liquid chromatography. At least 44 different sub-fractions were resolved and collected for finger print mass analysis using an electrospray mass spectrometer. This analysis revealed the presence of 80 distinct molecular mass components, from which five were further characterized. A peptide, named Acra1 was fully sequenced. It contains 58 amino acid residues cross-bridged by six cysteines forming three disulfide pairs, with a molecular mass of 6497 Da. A second purified peptide named Acra2 was partially sequenced with a molecular mass of 7849 Da. Acra1 is toxic and Acra2 is lethal to mice, at the dose assayed. Additionally, a cDNA library of the venomous gland of one specimen was prepared and several clones were obtained among which is one that codes for Acra1. Three analog gene sequences were found with point mutations either in the section that corresponds to the mature peptide or to the signal peptide. The signal peptide is 22 amino acid residues long. Several other gene sequences obtained suggest the presence in this venom of three distinct groups of peptides, among which are peptides similar to known Na(+)-channel specific toxins of other scorpions. A new type of peptide was identified with odd number of cysteines (seven), allowing the formation of heterodimers with molecular masses in the range of 16,000 atomic mass units (a.m.u.).
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Affiliation(s)
- Figen Caliskan
- Department of Biology, Faculty of Science and Art, Eskisehir Osmangazi University, 26480 Eskisehir, Turkey
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Hajiyev CM, Caliskan F. An approach to improve the offshore platform coordinates accuracy by using multichannel Kalman filtering. ISA Trans 2003; 42:53-61. [PMID: 12546468 DOI: 10.1016/s0019-0578(07)60113-x] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this paper, multichannel Kalman filters for estimation of offshore platform (OP) coordinates are designed. The complete OP motion is assumed to be composed of the low-frequency motion caused by the wind and undercurrent, and the high-frequency motion caused by the sea. The mathematical model of the low-frequency OP motion is given by the normal differential equation system, and the high-frequency OP motion is represented by a moving-average multivariable autoregression model. The parameter estimation problem for the model of the low-frequency OP motion, on which the in-service control is performed, is solved through two jointly operating Kalman filters: the first one is for the estimation of the parameters of the low-frequency motion model, and the second one is for the parameter estimation for the high-frequency model. The parameters of the first filter are automatically adapted to variations of the second filter, i.e., they are adapted to disturbances from the sea. Two algorithms for the OP motion parameter estimation (parallel and with preliminary data compression). employed for several measuring channels data estimation, are developed, and simulated on a computer. Some recommendations on their use are given.
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Affiliation(s)
- Ch M Hajiyev
- Istanbul Technical University Aeronautics and Astronautics Engineering, Maslak, Istanbul, 80626, Turkey.
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Caliskan F, Hajiyev CM. Innovation sequence application to aircraft sensor fault detection: comparison of checking covariance matrix algorithms. ISA Trans 2000; 39:47-56. [PMID: 10826285 DOI: 10.1016/s0019-0578(99)00044-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this paper, the algorithms verifying the covariance matrix of the Kalman filter innovation sequence are compared with respect to detected minimum fault rate and detection time. Four algorithms are dealt with; the algorithm verifying the trace of the covariance matrix of the innovation sequence, the algorithm verifying the sum of all elements of the inverse covariance matrix of the innovation sequence, the optimal algorithm verifying the ratio of two quadratic forms of which matrices are theoretic and selected covariance matrices of Kalman filter innovation sequence, and the algorithm verifying the generalized variance of the covariance matrix of the innovation sequence. The algorithms are implemented for longitudinal dynamics of an aircraft to detect sensor faults, and some suggestions are given on the use of the algorithms in flight control systems.
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Affiliation(s)
- F Caliskan
- Istanbul Technical University Electrical Engineering, Ayazaga, Turkey.
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Caliskan F, Zohdy MA. Design of robust discrete control with desirable quadratic stability. ISA Trans 2000; 39:401-406. [PMID: 11106292 DOI: 10.1016/s0019-0578(00)00032-x] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this paper, a design of robust discrete control with desirable quadratic stability is proposed. The design procedure is the extended discrete version of the continuous robust quadratic stabilization technique proposed by Gu et al. [K. Gu, Y.H. Chen, M.A. Zohdy, N.K. Loh, Quadratic stabilizability of uncertain systems: a two level optimization setup, Automatica 27 (1) (1991) 161-165.]. The effect of the sampling time selection, and the effect of the domain on the robustness, is examined. The presented algorithm is applied to a discrete mass spring system, and a discrete simplified car steering system to demonstrate the feasibility of the procedure, and the effect of the time sampling on the robustness. The robustness increases in both examples considered, as the sampling time decreases to some degree.
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Affiliation(s)
- F Caliskan
- Oakland University, Electrical and Systems Engineering Department, Rochester, MI 48309, USA
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Scherer W, Caliskan F, Kaim J, Moss S, Vijayaraghavan T. Comparison of microleakage between direct placement composites and direct composite inlays. Gen Dent 1990; 38:209-11. [PMID: 2197172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Gaches J, Caliskan F, Findji F. A contribution to the study of irreversible coma and cerebral death (study of 71 cases). Electroencephalogr Clin Neurophysiol 1970; 29:531. [PMID: 4097456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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