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Cogliati M, Arikan-Akdagli S, Barac A, Bostanaru AC, Brito S, Çerikçioğlu N, Efstratiou MA, Ergin Ç, Esposto MC, Frenkel M, Gangneux JP, Gitto A, Gonçalves CI, Guegan H, Gunde-Cimerman N, Güran M, Jonikaitė E, Kataržytė M, Klingspor L, Mares M, Meijer WG, Melchers WJG, Meletiadis J, Nastasa V, Babič MN, Ogunc D, Ozhak B, Prigitano A, Ranque S, Romanò L, Rusu RO, Sabino R, Sampaio A, Silva S, Stephens JH, Tehupeiory-Kooreman M, Velegraki A, Veríssimo C, Segal E, Brandão J. Environmental and bioclimatic factors influencing yeasts and molds distribution along European shores. Sci Total Environ 2023; 859:160132. [PMID: 36400291 DOI: 10.1016/j.scitotenv.2022.160132] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 10/12/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
The present study employed data collected during the Mycosands survey to investigate the environmental factors influencing yeasts and molds distribution along European shores applying a species distribution modelling approach. Occurrence data were compared to climatic datasets (temperature, precipitation, and solar radiation), soil datasets (chemical and physical properties), and water datasets (temperature, salinity, and chlorophyll-a concentration) downloaded from web databases. Analyses were performed by MaxEnt software. Results suggested a different probability of distribution of yeasts and molds along European shores. Yeasts seem to tolerate low temperatures better during winter than molds and this reflects a higher suitability for the Northern European coasts. This difference is more evident considering suitability in waters. Both distributions of molds and yeasts are influenced by basic soil pH, probably because acidic soils are more favorable to bacterial growth. Soils with high nitrogen concentrations are not suitable for fungal growth, which, in contrast, are optimal for plant growth, favored by this environment. Finally, molds show affinity with soil rich in nickel and yeasts with soils rich in cadmium resulting in a distribution mainly at the mouths of European rivers or lagoons, where these metals accumulate in river sediments.
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Affiliation(s)
- M Cogliati
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy.
| | - S Arikan-Akdagli
- Mycology Laboratory at Department of Medical Microbiology of Hacettepe University Medical School, Ankara, Turkey
| | - A Barac
- Clinical Centre of Serbia, Clinic for Infectious and Tropical Diseases, Faculty of Medicine, University of Belgrade, Serbia
| | - A C Bostanaru
- Ion Ionescu de la Brad University of Life Sciences, Iasi, Romania
| | - S Brito
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | - N Çerikçioğlu
- Mycology Laboratory at Department of Medical Microbiology of Marmara University Medical School, Istanbul, Turkey
| | - M A Efstratiou
- Department of Marine Sciences, University of the Aegean, University Hill, Mytilene, Greece
| | - Ç Ergin
- Department of Medical Microbiology, Medical Faculty, Pamukkale University, Denizli, Turkey
| | - M C Esposto
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - M Frenkel
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - J P Gangneux
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - A Gitto
- UCD School of Biomolecular and Biomedical Science, UCD Earth Institute, and UCD Conway Institute, University College Dublin, Ireland
| | - C I Gonçalves
- Department of Biology and Environment, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - H Guegan
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - N Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Slovenia
| | - M Güran
- Faculty of Medicine, Eastern Mediterranean University, Famagusta, Northern Cyprus, Mersin, Turkey
| | - E Jonikaitė
- Marine Research Institute, Klaipėda University, Klaipėda, Lithuania
| | - M Kataržytė
- Marine Research Institute, Klaipėda University, Klaipėda, Lithuania
| | - L Klingspor
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - M Mares
- Ion Ionescu de la Brad University of Life Sciences, Iasi, Romania
| | - W G Meijer
- UCD School of Biomolecular and Biomedical Science, UCD Earth Institute, and UCD Conway Institute, University College Dublin, Ireland
| | - W J G Melchers
- Medical Microbiology, Radboud University Medical Centre (Radboudumc), Nijmegen, the Netherlands
| | - J Meletiadis
- Clinical Microbiology Laboratory, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - V Nastasa
- Ion Ionescu de la Brad University of Life Sciences, Iasi, Romania
| | - M Novak Babič
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Slovenia
| | - D Ogunc
- Department of Medical Microbiology, Akdeniz University Medical School, Antalya, Turkey
| | - B Ozhak
- Department of Medical Microbiology, Akdeniz University Medical School, Antalya, Turkey
| | - A Prigitano
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - S Ranque
- Aix Marseille Univ, IHU-Méditerranée Infection, AP-HM, IRD, SSA, VITROME, Marseille, France
| | - L Romanò
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - R O Rusu
- Ion Ionescu de la Brad University of Life Sciences, Iasi, Romania
| | - R Sabino
- Reference Unit for Parasitic and Fungal Infections, Department of Infectious Diseases, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal; Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - A Sampaio
- Department of Biology and Environment, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), UTAD, Vila Real, Portugal
| | - S Silva
- Department of Epidemiology, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - J H Stephens
- UCD School of Biomolecular and Biomedical Science, UCD Earth Institute, and UCD Conway Institute, University College Dublin, Ireland
| | - M Tehupeiory-Kooreman
- Medical Microbiology, Radboud University Medical Centre (Radboudumc), Nijmegen, the Netherlands
| | - A Velegraki
- Mycology Research Laboratory and UOA/HCPF Culture Collection, Microbiology Department, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Mycology Laboratory, BIOMEDICINE S.A., Athens, Greece
| | - C Veríssimo
- Reference Unit for Parasitic and Fungal Infections, Department of Infectious Diseases, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - E Segal
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - J Brandão
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal; Centre for Environmental and Marine Studies (CESAM) - Department of Animal Biology, University of Lisbon, Lisbon, Portugal
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Bocaneti Daraban F, Dascalu A, Tanase O, Pasca S, Mares M. Expression of Matrix Metalloproteinase-1 and its Tissue Inhibitor in Bovine Fibropapilloma. J Comp Pathol 2022. [DOI: 10.1016/j.jcpa.2021.11.096] [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: 11/28/2022]
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Brandão J, Gangneux JP, Arikan-Akdagli S, Barac A, Bostanaru AC, Brito S, Bull M, Çerikçioğlu N, Chapman B, Efstratiou MA, Ergin Ç, Frenkel M, Gitto A, Gonçalves CI, Guégan H, Gunde-Cimerman N, Güran M, Irinyi L, Jonikaitė E, Kataržytė M, Klingspor L, Mares M, Meijer WG, Melchers WJG, Meletiadis J, Meyer W, Nastasa V, Babič MN, Ogunc D, Ozhak B, Prigitano A, Ranque S, Rusu RO, Sabino R, Sampaio A, Silva S, Stephens JH, Tehupeiory-Kooreman M, Tortorano AM, Velegraki A, Veríssimo C, Wunderlich GC, Segal E. Mycosands: Fungal diversity and abundance in beach sand and recreational waters - Relevance to human health. Sci Total Environ 2021; 781:146598. [PMID: 33812107 DOI: 10.1016/j.scitotenv.2021.146598] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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: 12/10/2020] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
The goal of most studies published on sand contaminants is to gather and discuss knowledge to avoid faecal contamination of water by run-offs and tide-retractions. Other life forms in the sand, however, are seldom studied but always pointed out as relevant. The Mycosands initiative was created to generate data on fungi in beach sands and waters, of both coastal and freshwater inland bathing sites. A team of medical mycologists and water quality specialists explored the sand culturable mycobiota of 91 bathing sites, and water of 67 of these, spanning from the Atlantic to the Eastern Mediterranean coasts, including the Italian lakes and the Adriatic, Baltic, and Black Seas. Sydney (Australia) was also included in the study. Thirteen countries took part in the initiative. The present study considered several fungal parameters (all fungi, several species of the genus Aspergillus and Candida and the genera themselves, plus other yeasts, allergenic fungi, dematiaceous fungi and dermatophytes). The study considered four variables that the team expected would influence the results of the analytical parameters, such as coast or inland location, urban and non-urban sites, period of the year, geographical proximity and type of sediment. The genera most frequently found were Aspergillus spp., Candida spp., Fusarium spp. and Cryptococcus spp. both in sand and in water. A site-blind median was found to be 89 Colony-Forming Units (CFU) of fungi per gram of sand in coastal and inland freshwaters, with variability between 0 and 6400 CFU/g. For freshwater sites, that number was 201.7 CFU/g (0, 6400 CFU/g (p = 0.01)) and for coastal sites was 76.7 CFU/g (0, 3497.5 CFU/g). For coastal waters and all waters, the median was 0 CFU/ml (0, 1592 CFU/ml) and for freshwaters 6.7 (0, 310.0) CFU/ml (p < 0.001). The results advocate that beaches should be monitored for fungi for safer use and better management.
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Affiliation(s)
- J Brandão
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal; Centre for Environmental and Marine Studies (CESAM) - Department of Animal Biology, University of Lisbon, Lisbon, Portugal.
| | - J P Gangneux
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - S Arikan-Akdagli
- Mycology Laboratory at Department of Medical Microbiology of Hacettepe University Medical School, Ankara, Turkey
| | - A Barac
- Clinical Centre of Serbia, Clinic for Infectious and Tropical Diseases, Faculty of Medicine, University of Belgrade, Serbia
| | - A C Bostanaru
- Ion Ionescu de la Brad University of Agricultural Sciences and Veterinary Medicine of Iasi, Romania
| | - S Brito
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | - M Bull
- Quantal Bioscience, North Parramatta, Australia
| | - N Çerikçioğlu
- Mycology Laboratory at Department of Medical Microbiology of Marmara University Medical School, Istanbul, Turkey
| | - B Chapman
- Quantal Bioscience, North Parramatta, Australia
| | - M A Efstratiou
- Department of Marine Sciences, University of the Aegean, University Hill, Mytilene, Greece
| | - Ç Ergin
- Department of Medical Microbiology, Medical Faculty, Pamukkale University, Denizli, Turkey
| | - M Frenkel
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - A Gitto
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Ireland; UCD Earth Institute, University College Dublin, Ireland; UCD Conway Institute, University College Dublin, Ireland
| | - C I Gonçalves
- Department of Biology and Environment, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - H Guégan
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - N Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Slovenia
| | - M Güran
- Faculty of Medicine, Eastern Mediterranean University, Famagusta, Northern Cyprus, Mersin 10, Turkey
| | - L Irinyi
- Molecular Mycology Research Laboratory, Centre for Infectious Disease and Microbiology, Sydney Medical School, Westmead Clinical School, Westmead Hospital, Marie Bashir Institute for Emerging Infectious Diseases and Biosecurity, Westmead Institute for Medical Research, The University of Sydney, Westmead, Australia
| | - E Jonikaitė
- Marine Research Institute, Klaipėda University, Klaipėda, Lithuania
| | - M Kataržytė
- Marine Research Institute, Klaipėda University, Klaipėda, Lithuania
| | - L Klingspor
- Division of Clinical Microbiology, Department of Laboratory Medicin, Karolinska Institutet, Stockholm, Sweden
| | - M Mares
- Ion Ionescu de la Brad University of Agricultural Sciences and Veterinary Medicine of Iasi, Romania
| | - W G Meijer
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Ireland; UCD Earth Institute, University College Dublin, Ireland; UCD Conway Institute, University College Dublin, Ireland
| | - W J G Melchers
- Medical Microbiology, Radboud University Medical Centre (Radboudumc), Nijmegen, the Netherlands
| | - J Meletiadis
- Clinical Microbiology Laboratory, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - W Meyer
- Molecular Mycology Research Laboratory, Centre for Infectious Disease and Microbiology, Sydney Medical School, Westmead Clinical School, Westmead Hospital, Marie Bashir Institute for Emerging Infectious Diseases and Biosecurity, Westmead Institute for Medical Research, The University of Sydney, Westmead, Australia
| | - V Nastasa
- Ion Ionescu de la Brad University of Agricultural Sciences and Veterinary Medicine of Iasi, Romania
| | - M Novak Babič
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Slovenia
| | - D Ogunc
- Department of Medical Microbiology, Akdeniz University Medical School, Antalya, Turkey
| | - B Ozhak
- Department of Medical Microbiology, Akdeniz University Medical School, Antalya, Turkey
| | - A Prigitano
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
| | - S Ranque
- Aix Marseille Univ, IHU-Méditerranée Infection, AP-HM, IRD, SSA, VITROME, Marseille, France
| | - R O Rusu
- Ion Ionescu de la Brad University of Agricultural Sciences and Veterinary Medicine of Iasi, Romania
| | - R Sabino
- Reference Unit for Parasitic and Fungal Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | - A Sampaio
- Department of Biology and Environment, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), UTAD, Vila Real, Portugal
| | - S Silva
- Department of Epidemiology, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | - J H Stephens
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Ireland; UCD Earth Institute, University College Dublin, Ireland; UCD Conway Institute, University College Dublin, Ireland
| | - M Tehupeiory-Kooreman
- Medical Microbiology, Radboud University Medical Centre (Radboudumc), Nijmegen, the Netherlands
| | - A M Tortorano
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
| | - A Velegraki
- Mycology Research Laboratory and UOA/HCPF Culture Collection, Microbiology Department, Medical School, National and Kapodistrian University of Athens, Athens, Greece and Mycology Laboratory, BIOMEDICINE S.A., Athens, Greece
| | - C Veríssimo
- Reference Unit for Parasitic and Fungal Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | - G C Wunderlich
- Quantal Bioscience, North Parramatta, Australia; Molecular Mycology Research Laboratory, Centre for Infectious Disease and Microbiology, Sydney Medical School, Westmead Clinical School, Westmead Hospital, Marie Bashir Institute for Emerging Infectious Diseases and Biosecurity, Westmead Institute for Medical Research, The University of Sydney, Westmead, Australia
| | - E Segal
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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Chiriac A, Birsan C, Mares M, Wollina U. [Kerion Celsi due to Microsporum canis infection]. Hautarzt 2021; 72:855-859. [PMID: 33884438 DOI: 10.1007/s00105-021-04817-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2021] [Indexed: 11/26/2022]
Abstract
Tinea capitis is seen world-wide among children up to 12 years. The most severe type is Kerion Celsi with painful abscesses and lymphadenopathy. We report on an 11-year-old boy with Kerion Celsi, who was initially treated using antibiotics under the common misdiagnosis of a bacterial infection. Mycological investigations could identify Microsporum canis. The patient was treated orally with griseofulvin, which resulted in complete mycological remission after 8 weeks. Cicatrical alopecia, however, could not be prevented. Purulent infections of the scalp should lead to early mycological diagnostics in children.
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Affiliation(s)
- A Chiriac
- Department of Dermatology, Nicolina Medical Center, Iași, Rumänien
- Department of Dermatology, Apollonia University, Iași, Rumänien
- P. Poni Institute of Macromolecular Chemistry, Romanian Academy, Iași, Rumänien
| | - C Birsan
- Department of Dermatology, Apollonia University, Iași, Rumänien
| | - M Mares
- Laboratory of Antimicrobial Chemotherapy, Ion Ionescu de la Brad University, Iași, Rumänien
| | - Uwe Wollina
- Klinik für Dermatologie und Allergologie, Städtisches Klinikum Dresden, Friedrichstr. 41, 01067, Dresden, Deutschland.
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Arendrup MC, Friberg N, Mares M, Kahlmeter G, Meletiadis J, Guinea J. How to interpret MICs of antifungal compounds according to the revised clinical breakpoints v. 10.0 European committee on antimicrobial susceptibility testing (EUCAST). Clin Microbiol Infect 2020; 26:1464-1472. [PMID: 32562861 DOI: 10.1016/j.cmi.2020.06.007] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [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: 04/24/2020] [Revised: 05/29/2020] [Accepted: 06/06/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND EUCAST has revised the definition of the susceptibility category I from 'Intermediate' to 'Susceptible, Increased exposure'. This implies that I can be used where the drug concentration at the site of infection is high, either because of dose escalation or through other means to ensure efficacy. Consequently, I is no longer used as a buffer zone to prevent technical factors from causing misclassifications and discrepancies in interpretations. Instead, an Area of Technical Uncertainty (ATU) has been introduced for MICs that cannot be categorized without additional information as a warning to the laboratory that decision on how to act has to be made. To implement these changes, the EUCAST-AFST (Subcommittee on Antifungal Susceptibility Testing) reviewed all, and revised some, clinical antifungal breakpoints. OBJECTIVES The aim was to present an overview of the current antifungal breakpoints and supporting evidence behind the changes. SOURCES This document is based on the ten recently updated EUCAST rationale documents, clinical breakpoint and breakpoint ECOFF documents. CONTENT The following breakpoints (in mg/L) have been revised or established for Candida species: micafungin against C. albicans (ATU = 0.03); amphotericin B (S ≤/> R = 1/1), fluconazole (S ≤/> R = 2/4), itraconazole (S ≤/> R = 0.06/0.06), posaconazole (S ≤/> R = 0.06/0.06) and voriconazole (S ≤/> R = 0.06/0.25) against C. dubliniensis; fluconazole against C. glabrata (S ≤/> R = 0.001/16); and anidulafungin (S ≤/> R = 4/4) and micafungin (S ≤/> R = 2/2) against C. parapsilosis. For Aspergillus, new or revised breakpoints include itraconazole (ATU = 2) and isavuconazole against A. flavus (S ≤/> R = 1/2, ATU = 2); amphotericin B (S ≤/> R = 1/1), isavuconazole (S ≤ /> R = 1/2, ATU = 2), itraconazole (S ≤/> R = 1/1, ATU = 2), posaconazole (ATU = 0.25) and voriconazole (S ≤/> R = 1/1, ATU = 2) against A. fumigatus; itraconazole (S ≤/> R = 1/1, ATU = 2) and voriconazole (S ≤/> R = 1/1, ATU = 2) against A. nidulans; amphotericin B against A. niger (S ≤/> R = 1/1); and itraconazole (S ≤/> R = 1/1, ATU = 2) and posaconazole (ATU = 0.25) against A. terreus. IMPLICATIONS EUCAST-AFST has released ten new documents summarizing existing and new breakpoints and MIC ranges for control strains. A failure to adopt the breakpoint changes may lead to misclassifications and suboptimal or inappropriate therapy of patients with fungal infections.
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Affiliation(s)
- M C Arendrup
- Unit of Mycology, Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark; Department of Clinical Microbiology, University Hospital Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - N Friberg
- Division of Clinical Microbiology, Helsinki University Hospital, HUSLAB, Finland
| | - M Mares
- Laboratory of Antimicrobial Chemotherapy, Ion Ionescu de la Brad University, Iasi, Romania
| | - G Kahlmeter
- The EUCAST Development Laboratory, Clinical Microbiology, Växjö, Sweden
| | - J Meletiadis
- Clinical Microbiology Laboratory, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece; Department of Medical Microbiology and Infectious Diseases, Erasmus MC, Rotterdam, the Netherlands
| | - J Guinea
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain; CIBER de enfermedades Respiratorias-CIBERES (CB06/06/0058), Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
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Mandalian T, Coprean D, Hritcu O, Hritcu L, Morosan S, Mares M, Pasca A. Evaluation of Kojic Acid Acute Toxicity in Adult Zebrafish (Danio rerio). J Comp Pathol 2020. [DOI: 10.1016/j.jcpa.2019.10.056] [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: 11/27/2022]
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Pérez-Hansen A, Lass-Flörl C, Lackner M, Aigner M, Alastruey-Izquierdo A, Arikan-Akdagli S, Bader O, Becker K, Boekhout T, Buzina W, Cornely OA, Hamal P, Kidd SE, Kurzai O, Lagrou K, Lopes Colombo A, Mares M, Masoud H, Meis JF, Oliveri S, Rodloff AC, Orth-Höller D, Guerrero-Lozano I, Sanguinetti M, Segal E, Taj-Aldeen SJ, Tortorano AM, Trovato L, Walther G, Willinger B. Antifungal susceptibility profiles of rare ascomycetous yeasts. J Antimicrob Chemother 2019; 74:2649-2656. [DOI: 10.1093/jac/dkz231] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/30/2019] [Accepted: 05/04/2019] [Indexed: 12/21/2022] Open
Abstract
AbstractObjectivesTo generate antifungal susceptibility patterns for Trichomonascus ciferrii (Candida ciferrii), Candida inconspicua (Torulopsis inconspicua) and Diutina rugosa species complex (Candida rugosa species complex), and to provide key parameters such as MIC50, MIC90 and tentative epidemiological cut-off values (TECOFFs).MethodsOur strain set included isolates of clinical origin: C. inconspicua (n = 168), D. rugosa species complex (n = 90) [Candida pararugosa (n = 60), D. rugosa (n = 26) and Candida mesorugosa (n = 4)], Pichia norvegensis (Candida norvegensis) (n = 15) and T. ciferrii (n = 8). Identification was performed by MALDI-TOF MS or internal transcribed spacer sequencing. Antifungal susceptibility patterns were generated for azoles, echinocandins and amphotericin B using commercial Etest and the EUCAST broth microdilution method v7.3.1. Essential agreement (EA) was calculated for Etest and EUCAST.ResultsC. inconspicua, C. pararugosa and P. norvegensis showed elevated azole MICs (MIC50 ≥0.06 mg/L), and D. rugosa and C. pararugosa elevated echinocandin MICs (MIC50 ≥0.06 mg/L). EA between methods was generally low (<90%); EA averaged 77.45%. TECOFFs were suggested for C. inconspicua and D. rugosa species complex.ConclusionsRare yeast species tested shared high fluconazole MICs. D. rugosa species complex displayed high echinocandin MICs, while C. inconspicua and P. norvegensis were found to have high azole MICs. Overall, the agreement between EUCAST and Etest was poor and therefore MIC values generated with Etest cannot be directly compared with EUCAST results.
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Affiliation(s)
- Antonio Pérez-Hansen
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, Innsbruck, Austria
| | - Cornelia Lass-Flörl
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, Innsbruck, Austria
| | - Michaela Lackner
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, Innsbruck, Austria
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Arendrup M, Meletiadis J, Mouton J, Guinea J, Cuenca-Estrella M, Lagrou K, Howard S, Arendrup M, Meletiadis J, Howard S, Mouton J, Guinea J, Lagrou K, Arikan-Akdagli S, Barchiesi F, Hamal P, Järv H, Lass-Flörl C, Mares M, Matos T, Muehlethaler K, Rogers T, Torp Andersen C, Verweij P. EUCAST technical note on isavuconazole breakpoints for Aspergillus, itraconazole breakpoints for Candida and updates for the antifungal susceptibility testing method documents. Clin Microbiol Infect 2016; 22:571.e1-4. [DOI: 10.1016/j.cmi.2016.01.017] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 01/24/2016] [Indexed: 12/18/2022]
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9
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Minea B, Marangoci N, Peptanariu D, Rosca I, Nastasa V, Corciova A, Varganici C, Nicolescu A, Fifere A, Neamtu A, Mares M, Barboiu M, Pinteala M. Inclusion complexes of propiconazole nitrate with substituted β-cyclodextrins: the synthesis and in silico and in vitro assessment of their antifungal properties. NEW J CHEM 2016. [DOI: 10.1039/c5nj01811k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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
Inclusion complexes with sulfobutylether-β-cyclodextrin, β-cyclodextrin sulphated sodium salt and monochlorotriazinyl-β-cyclodextrin were characterized and assessed for antifungal activity and cytotoxicity.
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10
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Minea B, Nastasa V, Moraru RF, Kolecka A, Flonta MM, Marincu I, Man A, Toma F, Lupse M, Doroftei B, Marangoci N, Pinteala M, Boekhout T, Mares M. Species distribution and susceptibility profile to fluconazole, voriconazole and MXP-4509 of 551 clinical yeast isolates from a Romanian multi-centre study. Eur J Clin Microbiol Infect Dis 2014; 34:367-83. [PMID: 25224578 DOI: 10.1007/s10096-014-2240-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 06/06/2014] [Accepted: 08/27/2014] [Indexed: 01/22/2023]
Abstract
This is the first multi-centre study regarding yeast infections in Romania. The aim was to determine the aetiological spectrum and susceptibility pattern to fluconazole, voriconazole and the novel compound MXP-4509. The 551 isolates were identified using routine laboratory methods, matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS) and DNA sequence analysis. Susceptibility testing was performed using the European Committee for Antimicrobial Susceptibility Testing (EUCAST) method and breakpoints. The yeasts originated from superficial infections (SUP, 51.5 %), bloodstream infections (BSI, 31.6 %) and deep-seated infections (DEEP, 16.9 %), from patients of all ages. Nine genera and 30 species were identified. The 20 Candida species accounted for 94.6 % of all isolates. C. albicans was the overall leading pathogen (50.5 %). Lodderomyces elongisporus is reported for the first time as a fungaemia cause in Europe. C. glabrata and Saccharomyces cerevisiae, as well as the non-Candida spp. and non-albicans Candida spp. groups, showed decreased fluconazole susceptibility (<75 %). The overall fluconazole resistance was 10.2 %. C. krusei accounted for 27 of the 56 fluconazole-resistant isolates. The overall voriconazole resistance was 2.5 % and was due mainly to C. glabrata and C. tropicalis isolates. Fluconazole resistance rates for the three categories of infection were similar to the overall value; voriconazole resistance rates differed: 4 % for BSI, 3.2 % for DEEP and 1.4 % for SUP. The antifungal activity of MXP-4509 was superior to voriconazole against C. glabrata and many fluconazole-resistant isolates. There was a large percentage of non-albicans Candida isolates. A large part of the high fluconazole resistance was not acquired but intrinsic, resulting from the high percentage of C. krusei.
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Affiliation(s)
- B Minea
- Advanced Research Centre for Bionanoconjugates and Biopolymers, Institute of Macromolecular Chemistry "Petru Poni", 700487, Iasi, Romania
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11
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Parasca OM, Lupascu F, Vasile C, Mares M, Nastasa V, Profire L. New hydrazines with sulphonamidic structure: synthesis,characterization and biological activity. Rev Med Chir Soc Med Nat Iasi 2013; 117:238-243. [PMID: 24505922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
UNLABELLED Infections caused by bacterial species are common in immunocompromised patients and carry significant treatment costs and mortality. The emerging resistance of microorganisms to some synthetic antimicrobial agents makes it necessary to continue the research for new antimicrobial drugs. AIM To design new sulphonamide compounds with potential antibacterial and antioxidant activity. MATERIAL AND METHODS New N-hydrazino acetyl-sulphonamides were prepared by condensation of some sulphonamides with chloroacetyl chloride and amination of intermediate compounds with hydrazine hydrate. RESULTS The synthesized compounds were screened for their antibacterial activity against Gram positive (Klebsiellapneumoniae. Proteus vulgaris, Citrobacter freundii, Enterobacter cloacae, Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis) and Gram negative bacterial strains (Pseudomonas aeruginosa, Escherichia coli). Some of them were found to have good antibacterial activity. The antioxidant activity of these compounds was also tested using different methods: total antioxidant capacity, reducing power, and DPPH radical scavenging activity. CONCLUSIONS Chemical modulations performed on sulphonamide structure have a good influence on the biological activity of the synthesized compounds, especially on their antioxidant effects.
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Affiliation(s)
- Oana Maria Parasca
- Faculty of Pharmacy, University of Medicine and Pharmacy Grigore T. Popa, Iasi
| | - Florentina Lupascu
- Discipline of Pharmaceutical Chemistry, University of Medicine and Pharmacy Grigore T. Popa, Iasi
| | - Cornelia Vasile
- Romanian Academy, P. Poni Institute of Macromolecular Chemistry, University of Medicine and Pharmacy Grigore T. Popa, Iasi
| | - M Mares
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Iasi
| | - V Nastasa
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Iasi
| | - Lenuta Profire
- Discipline of Pharmaceutical Chemistry, University of Medicine and Pharmacy Grigore T. Popa, Iasi
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12
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Socolov D, Mares M, Akad M, Miron N, Socolov R, Ciupilan I. P514 Mycoplasma hominis and Ureaplasma urealiticum incidence and susceptibility to antimicrobial agents in patients with infertility in the North-East of Romania. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62004-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Kadanka Z, Mares M, Bednarík J, Smrcka V, Krbec M, Chaloupka R, Dusek L. Predictive factors for mild forms of spondylotic cervical myelopathy treated conservatively or surgically. Eur J Neurol 2005; 12:16-24. [PMID: 15613142 DOI: 10.1111/j.1468-1331.2004.00947.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A prospective 3-year randomized study comparing conservative and surgical treatment of spondylotic cervical myelopathy to establish predictive factors for outcome after conservative treatment and surgery. The clinical, electrophysiological and imaging parameters were examined to reveal how they characterized the clinical outcome. Statistically, pair-wise and multiple comparisons of different were used with the independent t-test and on one-way anova models followed by Tukey multiple-range tests. The patients with a good outcome in the conservatively treated group were of older age before treatment, had normal central motor conduction time (CMCT), and possessed a larger transverse area of the spinal cord. The patients with a good outcome in the surgically treated group had a more serious clinical picture (expressed in mJOA score and slower walk). Patients should rather be treated conservatively if they a spinal transverse area larger than 70 mm2, are of older age, and have normal CMCT. Surgery is more suitable for patients with clinically worse status and a lesser transverse area of spinal cord.
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Affiliation(s)
- Z Kadanka
- Department of Neurology, Medical Faculty, Masaryk University and Universi Hospital Brno, Czech Republic.
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14
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Kadanka Z, Mares M, Bednarík J, Smrcka V, Krbec M, Chaloupka R, Dusek L. Predictive factors for spondylotic cervical myelopathy treated conservatively or surgically. Eur J Neurol 2005; 12:55-63. [PMID: 15613148 DOI: 10.1111/j.1468-1331.2004.00896.x] [Citation(s) in RCA: 35] [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] [Indexed: 11/29/2022]
Abstract
A prospective 3-year randomized study comparing conservative and surgical treatment of spondylotic cervical myelopathy to establish predictive factors for outcome after conservative treatment and surgery. The clinical, electrophysiological and imaging parameters were examined to reveal how they characterized the clinical outcome. The patients with a good outcome in the conservatively treated group were of older age before treatment, had normal central motor conduction time (CMCT), and possessed a larger transverse area of the spinal cord. The patients with a good outcome in the surgically treated group had a more serious clinical picture (expressed in mJOA score and slower walk). Patients should rather be treated conservatively if they have a spinal transverse area larger than 70 mm2, are of older age and have normal CMCT. Surgery is more suitable for patients with clinically worse status and a lesser transverse area of spinal cord.
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Affiliation(s)
- Z Kadanka
- Department of Neurology, Medical Faculty Masaryk University and University Hospital Brno, Czech Republic.
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15
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Abstract
Protease inhibitors (PIs) are plant compounds that can inhibit proteases of mammal, insect, or pathogen origin and are frequently induced by mechanical wounding, insect feeding, or pathogen infection. Nicotiana attenuata is a species that induces nicotine, volatiles, and phenolics in response to damage. Here we examine the distribution of PIs in N. attenuata to determine if they are part of the induced response in this species and if this response is ontogenetically constrained. We found that N. attenuata shoot extracts inhibited trypsin (Tryp) and chymotrypsin (Chym) activities, while root extracts inhibited Tryp, Chym, and the bacterial protease subtilisin (Sub). The highest TrypPI levels were found at midday in the source-sink transition leaf, while older or younger leaves contained lower TrypPI levels and did not show significant diurnal fluctuations. Rosette plants, bolting plants, and flowering plants all contained TrypPIs in leaves, stems, and flowers, while seed capsules, seeds, and young seedlings did not contain any PIs. PIs in N. attenuata rosette plants were induced by Manduca sexta larval feeding, methyl jasmonate (MeJA) treatment, wounding, and application of M. sexta oral secretion and regurgitant. The response to MeJA application was stronger and longer lasting than to mechanical wounding. The direction and magnitude of the systemic response to mechanical wounding or larval damage depended on the age of the leaf that was damaged and the frequency of wounding. The systemic signal for TrypPI induction appears to follow source-sink relations in the plant and to be regulated by the octadecanoid pathway. Interestingly, by the time plants reach the flowering stage, they had lost the ability to increase PI levels after MeJA treatment. We concluded that plant ontogeny constrains both constitutive and inducible PI production in N. attenuata.
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Affiliation(s)
- N M van Dam
- Max-Planck-Institute for Chemical Ecology, Carl-Zeiss-Promenade 10, D-07745 Jena, Germany
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16
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Chalumeau M, Tréluyer JM, Salanave B, Assathiany R, Chéron G, Crocheton N, Rougeron C, Mares M, Bréart G, Pons G. Off label and unlicensed drug use among French office based paediatricians. Arch Dis Child 2000; 83:502-5. [PMID: 11087286 PMCID: PMC1718582 DOI: 10.1136/adc.83.6.502] [Citation(s) in RCA: 118] [Impact Index Per Article: 4.9] [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] [Indexed: 11/03/2022]
Abstract
AIMS To determine the extent of off label and unlicensed drug use in French office based paediatric practice. METHODS A prospective one day survey of all written prescriptions, for patients under 15 years, among 95 office based paediatricians in the Paris, France metropolitan area. Main outcome measures were: comparison of the use of each drug with its product licence for age, indication, dose, and route of administration. RESULTS A total of 2522 prescriptions were administered to 989 patients; 844 (33%) were used either in an unlicensed (4%) or an off label (29%) manner. A total of 550 (56%) paediatric patients received one or more off label prescriptions. CONCLUSIONS Off label prescriptions (that is, outside the terms of the Summary of Product Characteristics) are widespread in office based paediatric practice, while unlicensed drug use is rare in our study. New regulations in the licensing process in Europe are needed to allow children to receive drugs that have been fully evaluated in their specific age group.
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Affiliation(s)
- M Chalumeau
- Pharmacologie Périnatale et Pédiatrique, Université René Descartes-Paris V, Hôpital Saint-Vincent de Paul, 82, avenue Denfert-Rochereau, 75674 Paris Cedex 14, France
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17
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Maresová L, Kutinová L, Ludvíková V, Zák R, Mares M, Nemecková S. Characterization of interaction of gH and gL glycoproteins of varicella-zoster virus: their processing and trafficking. J Gen Virol 2000; 81:1545-52. [PMID: 10811938 DOI: 10.1099/0022-1317-81-6-1545] [Citation(s) in RCA: 21] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Varicella-zoster virus (VZV) glycoproteins gH and gL were examined in a recombinant vaccinia virus system. Single expression of glycoprotein gL produced two molecular forms: an 18 kDa form and a 19 kDa form differing in size by one endoglycosidase H-sensitive N-linked oligosaccharide. Coexpression of gL and gH resulted in binding of the 18 kDa gL form with the mature form of gH, while the 19 kDa gL form remained uncomplexed. The glycosylation processing of gL was not dependent on gH; however, gL was required for the conversion of precursor gH (97 kDa) to mature gH (118 kDa). Subsequent analyses indicated that gL (18 kDa) was a more completely processed gL (19 kDa). Screening of the culture media revealed that gH and gL were secreted, but only if coexpressed and complexed together. The secreted form of gL was 18 kDa while that of gH was 114 kDa. The fact that secreted gH was smaller than intracytoplasmic gH suggested a proteolytic processing event prior to secretion. The 19 kDa form of gL was never secreted. These findings support a VZV gL recycling pathway between the endoplasmic reticulum and the cis-Golgi apparatus.
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Affiliation(s)
- L Maresová
- Institute of Haematology and Blood Transfusion, Dept of Experimental Virology, Prague 128 20, Czech Republic.
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18
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Horn M, Pavlík M, Dolecková L, Baudys M, Mares M. Arginine-based structures are specific inhibitors of cathepsin C. Application of peptide combinatorial libraries. Eur J Biochem 2000; 267:3330-6. [PMID: 10824120 DOI: 10.1046/j.1432-1327.2000.01364.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Novel synthetic peptide inhibitors of lysosomal cysteine proteinase cathepsin C have been designed through the use of soluble peptide combinatorial libraries. The uncovered structural inhibitory module consists of the N-terminal cluster of L-arginine residues. Its modification with D-amino acids or arginine derivatives did not increase the inhibition strength. Inhibitory potency of oligoarginines improves with the elongation of peptide chain reaching a maximum for octa-L-arginine. The oligoarginines specifically interact with the cathepsin C active site as shown by competitive-type inhibition kinetics (Ki approximately 10-5 M) and intrinsic fluorescence measurements. The inhibitory interaction of oligoarginines is established through the specific spatial contact of a net of guanidino groups in the arginine side-chains, as indicated by comparison with inhibitory action of low molecular mass guanidine derivatives (Ki approximately 10-3 M). Nonarginine polyionic compounds cannot mimic the inhibitory effect of oligoarginines. The arginine-based peptide inhibitors were selective towards cathepsin C among other cysteine proteinases tested.
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Affiliation(s)
- M Horn
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Praha, Czech Republic.
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19
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DeCosta J, Mares M, Bonner L. A modified version of the stroop as a measure of clinical depression. Arch Clin Neuropsychol 1998. [DOI: 10.1093/arclin/13.1.53b] [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: 11/12/2022] Open
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20
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Ghosh M, Mares M, Harlos K, Blake C. The crystal structure of a bifunctional Kunitz type cysteine proteinase inhibitor at 1.9 Å resolution. Acta Crystallogr A 1996. [DOI: 10.1107/s0108767396094950] [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: 11/10/2022] Open
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21
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Mares M, Sartori MT, Casonato A, Melacini P, Angelini C, Girolami A. Myopathy with tubular aggregates and hypertrophic cardiomyopathy in a patient with type IIA von Willebrand disease. Haematologia (Budap) 1996; 27:201-8. [PMID: 14651221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Affiliation(s)
- M Mares
- Institute of Medical Semeiotics, Padua, Italy
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22
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Abstract
The importance of aspartic proteinases in human pathophysiology continues to initiate extensive research. With burgeoning information on their biological functions and structures, the traditional view of the role of activation peptides of aspartic proteinases solely as inhibitors of the active site is changing. These peptide segments, or pro-parts, are deemed important for correct folding, targeting, and control of the activation of aspartic proteinase zymogens. Consequently, the primary structures of pro-parts reflect these functions. We discuss guidelines for formation of hypotheses derived from comparing the physiological function of aspartic proteinases and sequences of their pro-parts.
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Affiliation(s)
- G Koelsch
- Oklahoma Medical Research Foundation, Oklahoma City
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23
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Horst M, Mares M, Zabe M, Hummel M, Wiederanders B, Kirschke H, Hasilik A. Synthesis of phosphorylated oligosaccharides in lysozyme is enhanced by fusion to cathepsin D. J Biol Chem 1993; 268:19690-6. [PMID: 8366110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Chinese hamster ovary cells transfected with human lysozyme cDNA encoding Asn instead of Gly22 synthesize a mutant lysozyme, [Asn22]lysozyme, with about 60% of the molecules bearing carbohydrate. This carbohydrate is predominantly of the complex type and contains a varied number of lactosamine repeats. In this study we show that the glycosylation of [Asn22] lysozyme fused to human cathepsin D is altered relative to [Asn22]lysozyme alone. The fusion protein is synthesized as a 66-kDa precursor that is cleaved to enzymatically active and antigenically positive cathepsin D and lysozyme. As compared with [Asn22]lysozyme the lysozyme moiety of the fusion protein shows an increased N-glycosylation and a decreased synthesis of lactosamine repeats. Cleavage of the precursor with cathepsin L has revealed that the lysozyme portion of the secreted fusion protein bears a complex type carbohydrate. The intracellularly released lysozyme portion of the fusion protein contains trimmed oligosaccharides. In the presence of NH4Cl the lysosomal targeting of the fusion protein is inhibited. The secreted protein is then enriched in molecules bearing phosphorylated high mannose oligosaccharides in their lysozyme moiety. Our results indicate that carbohydrate processing in [Asn22]lysozyme, including the synthesis of mannose 6-phosphate residues and of lactosamine repeats, is altered by the attached cathepsin D. The phosphorylation of the carbohydrate on the lysozyme portion results in a very efficient lysosomal targeting of the concerned fusion protein molecules.
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Affiliation(s)
- M Horst
- Institute of Physiological Chemistry, Westfälische Wilhelms Universität, Münster, Federal Republic of Germany
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25
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Voburka Z, Mares M, Vĕtvicka V, Bilej M, Baudys M, Fusek M. New trypsin inhibitors are present in the coelomic fluid of the earthworm Lumbricus terrestris. Biochem Int 1992; 27:679-85. [PMID: 1417901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Proteinase-inhibiting components of the coelomic fluid of the earthworm Lumbricus terrestris were examined. Inhibition of proteinases of serine, aspartate and thiol families was tested. Very strong inhibition was observed only in the case of trypsin. Additional data suggest that the inhibition is related to proteins of molar mass of 42 kDa and 20 kDa, respectively. These two proteins are present in the coelomic fluid in several forms which differ in their isoelectric points.
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Affiliation(s)
- Z Voburka
- Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, Prague, CSFR
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26
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Fabris F, Mares M, Sartori MT, Cordiano I, Girolami A. Long-term treatment of refractory HIV-related immune thrombocytopenia in a patient with haemophilia A. Haematologica 1992; 77:79-81. [PMID: 1398285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Haemophilia A patient developed symptomatic immune thrombocytopenia 5 years after HIV seroconversion without any progression of the viral disease. He displayed major bleeding with less than 30 x 10(9) platelets/l. No increase in platelet count was obtained using steroids, azidothymidine and alpha-interferon, while the patient was responsive only to high-dose intravenous immunoglobulins (IVGG). The patient remained responsive to IVGG for 1 year, and the repeated infusions of immunoglobulins were effective in safely maintaining the platelet count, with peak counts above 100 x 10(9)/l. On the contrary, after a single course of six plasma exchanges the patient became symptomatic and completely refractory to IVGG during the next month. In conclusion, IVGG could be effectively used in a long-term regimen in haemophiliacs with refractory HIV-ITP to avoid the risk of haemorrhages and to delay splenectomy.
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Affiliation(s)
- F Fabris
- Istituto di Semeiotica Medica, Università di Padova, Italy
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Sartori MT, Mares M, Del Mistro A, De Rossi A, Zerbinati P, Girolami A. Prevalence of HIV infection in a cohort of patients with congenital coagulation defects of the prothrombin complex factors. Blood Coagul Fibrinolysis 1991; 2:663-7. [PMID: 1782337 DOI: 10.1097/00001721-199110000-00013] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Twenty-seven patients suffering from congenital coagulation defects of the prothrombin complex factors were investigated: six had haemophilia B; 14, factor VII defect; four, factor X defect; and three, factor II defect. Nineteen patients (70.3%) had previously received plasma and/or clotting factors concentrates. Among these, markers of hepatitis B infection (HBV) were present in five cases (26.3%) and hepatitis C (HCV) antibodies were found in seven cases (36.8%). The HIV1 prevalence was similarly high. In fact, five patients (26.3%), previously infused with factor IX or prothrombin complex factors concentrates, developed HIV1 infection. No patient with factor VII deficiency became HIV1 positive, despite the administration of unheated factor VII concentrates and the consequent HBV and HCV contamination. In the HIV1 positive group, three patients showed a false positivity for HIV2 antibodies. Five years after seroconversion, three patients developed AIDS (stage IV) and died, one had persistent generalized lymphadenopathy (stage III), and one with post-hepatitis liver cirrhosis was asymptomatic (stage II) for HIV infection. The significant decrease in total white cells, T4 lymphocytes and platelet counts and increase of beta 2-microglobulin and neopterin levels confirmed the prognostic value of these markers for the progression of HIV1 disease. Only one HIV1 negative transfused patient developed anti-HTLV-I p19 antibodies.
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Affiliation(s)
- M T Sartori
- Institute of Medical Semeiotics, 2nd Chair of Medicine, University of Padua Medical School, Italy
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28
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Abstract
Two propart peptides of aspartic proteinases, the propart peptide of chicken pepsin and human cathepsin D, respectively, were investigated from the point of view of their inhibitory activity for a set of aspartic proteinases. These peptides display a very broad inhibitory spectrum. The strongest inhibition was observed for pepsin A-like proteinases where propart peptides can be used as titrants of active enzymes.
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Affiliation(s)
- M Fusek
- Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, Prague
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29
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Randi ML, Mares M, Fabris F, Tison T, Barbone E, Girolami A. Decrease of fibrinogen in patients with peripheral atherosclerotic disease by ticlopidine. Arzneimittelforschung 1991; 41:414-6. [PMID: 1859515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Ticlopidine (Ticlodone: CAS 55142-85-3) is able to develop a positive effect on claudication in patients affected by peripheral atherosclerotic disease (PAD). It is also known that ticlopidine decreases fibrinogen levels in plasma. 15 PAD patients treated with ticlopidine for 3 months were studied, evaluating the drug's effect both on maximum walking distance and on fibrinogen. Plasma fibrinogen as coagulable protein, fibrinogen antigen (Partigen method), 125I-fibrinogen survival, euglobulin lysis time and plasminogen were determined with the aim of clarifying if the decrease of plasma fibrinogen induced by ticlopidine is due to an increased destruction of a decreased production of the molecule. The normal levels of all tests before and after therapy both in ticlopidine treated patients and in the control group (acetylsalicylic acid + dipyridamol) indicate that the two hypotheses are not true. It is proposed that ticlopidine developing the known effect in decreasing the binding of fibrinogen to platelets induces a decrease only of activated fibrinogen.
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Affiliation(s)
- M L Randi
- Institute of Medical Semeiotics, University of Padua Medical School, Italy
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30
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Abstract
Hemorheological parameters (viscosity of whole blood, plasma viscosity, hematocrit, velocity of red blood cells) were studied in 30 patients with coronary artery disease (15 patients with acute myocardial infarction, 15 patients with chronic angina), 14 subjects at high risk for ischemic heart disease and 14 normal volunteers matched for sex and age. Viscosity of whole blood was high in all coronary disease patients and in high-risk subjects as compared with controls. Velocity of red blood cells was significantly decreased in these patients. On the other hand, plasma viscosity and fibrinogen values were in the normal range in both groups and hematocrit was only slightly elevated in patients with angina. Furthermore, there were no changes in rheological parameters during the period of observation (1 week). We can suppose that the hyperviscosity is due, above all, to the decreased red blood cell deformability both in coronary disease patients but also in high-risk subjects. It is probable that red blood cell damage is present before the acute ischemic event, and that is a preexisting cause and not a consequence of it.
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Affiliation(s)
- M Mares
- University of Padua Medical School, Italy
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31
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Affiliation(s)
- M Mares
- Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Science, Prague
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32
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Piermarocchi S, Segato T, Bertoja H, Midena E, Zucchetto M, Girolami A, Procidano M, Mares M. Branch retinal vein occlusion: the pathogenetic role of blood viscosity. Ann Ophthalmol 1990; 22:303-11. [PMID: 2221710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The pathogenesis of branch retinal vein occlusion has not been completely clarified. The role of abnormal blood viscosity in the appearance and evolution of the disease has recently been advocated. We studied 54 patients with long-standing branch retinal vein occlusion from a hemorrheologic point of view. Depending on the extension of retinal ischemia, two subgroups were identified. Hematocrit, blood and plasma viscosity, whole blood filterability, cell deformability, and fibrinogen levels were investigated. Thirty-five subjects of similar age, sex, and risk factors of diabetes and hypertension served as controls. Our results showed that blood viscosity is higher in patients with occlusion and particularly in those with severe retinal ischemia. Statistical analysis showed a direct correlation between blood viscosity and hematocrit.
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33
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Mares M, Sartori MT, Carretta M, Bertaggia A, Girolami A. Rhinophyma-like cryptococcal infection as an early manifestation of AIDS in a hemophilia B patient. Acta Haematol 1990; 84:101-3. [PMID: 2120880 DOI: 10.1159/000205038] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A hemophilia B patient, seropositive for HIV antibodies since 1984, came to us in March 1989 with a severe necrotizing lesion of the nose. It was an erythematous lesion and looked like rhinophyma. Microbiological examination of the skin biopsy showed the presence of Cryptococcus neoformans. At the time of the study, the patient was in partial remission after 2 weeks of therapy with fluconazole per os 400 mg/day. He will be treated with the same therapy at maintenance dose (200 mg/day) for a long period.
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Affiliation(s)
- M Mares
- 2nd Chair of Medicine, University of Padual Medical School, Italy
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34
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Mares M, Meloun B, Pavlik M, Kostka V, Baudys M. Primary structure of cathepsin D inhibitor from potatoes and its structure relationship to soybean trypsin inhibitor family. FEBS Lett 1989; 251:94-8. [PMID: 2753167 DOI: 10.1016/0014-5793(89)81435-8] [Citation(s) in RCA: 85] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A novel effective procedure for the purification of cathepsin D inhibitor from potatoes (PDI) was developed. The amino acid sequence of PDI was determined by analysis of the cyanogen bromide digest and of the limited tryptic and chymotryptic digest of the protein. The inhibitor is a single polypeptide chain protein consisting of 188 residues with a simple sugar moiety attached to Asn-19. The tentative disulfide pairings are also suggested. The sequence data clearly indicate that PDI is homologous with the soybean trypsin inhibitor (STI) (Kunitz) family. The active center of PDI for trypsin inhibition was identified as Pro-Val-Arg-Phe in analogy to STI.
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Affiliation(s)
- M Mares
- Institute of Organic Chemistry, Czechoslovak Academy of Sciences, Prague, Czechoslovakia
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35
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Vicari T, Sartori MT, Mares M, Calzavara M, Girolami A, Beltrami A, Grandis M. [Pathology of the oral cavity in patients with congenital coagulopathies and HIV infections]. G Stomatol Ortognatodonzia 1989; 8:31-4. [PMID: 2535000] [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: 01/01/2023]
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36
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Mares M, Visentin I, Radossi P, Boeri G, Girolami A. [Erythrocyte filterability and relative viscosity in liver cirrhosis and chronic hepatitis]. Clin Ter 1989; 129:243-59. [PMID: 2527119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Fifty patients with liver disease, of whom twenty-four had chronic active hepatitis and twenty-three had liver cirrhosis, were studied and compared with thirty-nine age- and sex-matched controls. Whole blood, plasma and their relative viscosities and the main factors capable of influencing these parameters (Ht, fibrinogen, triglycerides, cholesterol, plasma glucose, total proteins and gamma-globulins) were tested. Whole blood filterability time and velocity of red blood cells (VRBC) were also determined. In ten patients deformability of erythrocytes was determined both in whole blood and in suspensions of RBC in buffer at a Ht of 10%. Whole blood filterability time was significantly increased in all subjects with liver disease. Corrected filterability time was increased only in the cirrhotic group associated with a significant decrease of Ht and fibrinogen and a slight increase in gamma globulins and plasma viscosity. Whole blood viscosity was in the normal range while relative viscosity was decreased in all patients. These findings suggest that both shape alterations of red cells (such as echinocytic shape) and modifications of plasma proteins probably lead to a decrease of red cell filtration in cirrhotic patients.
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Patrassi GM, Mares M, Piermarocchi S, Santarossa A, Viero M, Girolami A. Fibrinolytic behavior in long-standing branch retinal vein occlusion. Ophthalmic Res 1987; 19:221-5. [PMID: 3696697 DOI: 10.1159/000265497] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The aim of our study was to evaluate the fibrinolytic system in patients with retinal branch vein occlusion (RVO). The following tests were carried out: prothrombin time, partial thromboplastin time (PTT), fibrinogen degradation products, euglobulin lysis time, fibrinogen, pasminogen, antithrombin III, alpha 2-antiplasmin and alpha 2-macroglobulin. Comparing the results of patients with those of normal controls, only the fibrinogen increase and PTT shortening were significantly different. All other tests taken into account were within normal limits. Only the patients without other associated diseases (diabetes or hypertension) showed a significant activation of fibrinolysis (either with respect to normal or to other RVO patient groups). In conclusion, no important fibrinolytic impairment was seen in our longstanding RVO patients. Fibrinolytic activation seen in patients without verified associated diseases may be related to the presence of a sound endothelium, still able to release plasminogen activators in response to RVO. The fibrinogen and PTT changes in RVO were probably due to other associated diseases.
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Affiliation(s)
- G M Patrassi
- Institute of Medical Semeiotics, University of Padua Medical School, Italy
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Warren DC, Lane HW, Mares M. Variability of zinc concentrations in human stimulated parotid saliva. Biol Trace Elem Res 1981; 3:99-105. [PMID: 24271639 DOI: 10.1007/bf02990450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/1980] [Accepted: 01/29/1981] [Indexed: 10/21/2022]
Abstract
The objective of this study was to determine the effect of sample collection conditions on the zinc concentrations in stimulated parotid (SP) saliva. The variability of zinc levels in SP saliva was determined on the basis of different times within a single day, from day-to-day, from one month to the next month, and between subjects. Ten healthy subjects, half of each sex, consumed 15-22 mg Zn/day in their diet. No significant difference in the mean zinc concentration of SP saliva on a day-to-day or month-to-month basis was demonstrated. Three subjects had significantly different SP saliva zinc levels than the other seven subjects. A significant diurnal variation in the mean SP salivary zinc levels was found. Changes of SP saliva flow rates suggested a training effect.
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Affiliation(s)
- D C Warren
- Department of Chemistry, Houston Baptist University, 77074, Houston, Texas
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Mares M, Palmer D, Kelm H. Activation volumes for the linkage isomerization reactions of nitritopentaammine complexes of cobalt(III), rhodium(III) and iridium(III) in aqueous solution. Inorganica Chim Acta 1978. [DOI: 10.1016/s0020-1693(00)87276-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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