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Klee L, Fabrice A, Eisenburger N, Feddern S, Gabriel C, Kossow A, Niessen J, Schmidt N, Wiesmüller GA, Grüne B, Joisten C. Corrigendum to "Coping strategies during legally enforced quarantine and their association to psychological distress level: a cross-sectional study" [Public Health 209 (2022) 52-60]. Public Health 2024; 226:273. [PMID: 38071185 PMCID: PMC10834371 DOI: 10.1016/j.puhe.2023.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Affiliation(s)
- L Klee
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute for Occupational Medicine and Social Medicine, University Hospital, Medical Faculty, RWTH Aachen University, Aachen, Germany.
| | - A Fabrice
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute for Occupational Medicine and Social Medicine, University Hospital, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - N Eisenburger
- Department for Physical Activity in Public Health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - S Feddern
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - C Gabriel
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - A Kossow
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute of Hygiene, University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - J Niessen
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - N Schmidt
- Department for Physical Activity in Public Health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - G A Wiesmüller
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute for Occupational Medicine and Social Medicine, University Hospital, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - B Grüne
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - C Joisten
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Department for Physical Activity in Public Health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
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Rheinbaben F, Köhnlein J, Schmidt N, Hildebrandt C, Werner S. To reduce cytotoxicity when testing the virucidal activity of chemical disinfectants and biocides: The "T-25 method" as an alternative to "large-volume-plating". Heliyon 2023; 9:e20728. [PMID: 37876415 PMCID: PMC10590779 DOI: 10.1016/j.heliyon.2023.e20728] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/28/2023] [Accepted: 10/04/2023] [Indexed: 10/26/2023] Open
Abstract
When testing the virucidal activity of biocides, the non-inactivated residual virus is titrated on cell cultures by the end point dilution method on 96-well tissue culture plates. However, residues of the biocide to be tested also come into contact with the cell cultures in varying concentrations and thus can lead to cytotoxic effects even at high levels of dilution. In the European standards for testing biocides, in particular disinfectants, methods such as Large-Volume-Plating (LVP) method and, in some guidelines, gel filtration procedures are described for reducing cytotoxic effects in the case of highly cytotoxic products, if the classical dilution method proves to be impractical. In order to enable the testing of highly cytotoxic biocides for their activity against viruses, an alternative method for reducing cytotoxicity is introduced, which is based on a procedure of isolating infectious viruses from cytotoxic patients' materials such as stool and can be applied when the other methods fail.
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Affiliation(s)
| | | | | | | | - S. Werner
- HygCen Germany GmbH, Schwerin, Germany
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Pereira LG, Ferreira GVB, Justino AKS, de Oliveira KMT, de Queiroz MT, Schmidt N, Fauvelle V, Carvalho VL, Lucena-Frédou F. Exploring microplastic contamination in Guiana dolphins (Sotalia guianensis): Insights into plastic pollution in the southwestern tropical Atlantic. Mar Pollut Bull 2023; 194:115407. [PMID: 37611337 DOI: 10.1016/j.marpolbul.2023.115407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/11/2023] [Accepted: 08/07/2023] [Indexed: 08/25/2023]
Abstract
Marine mammals are considered sentinel species and may act as indicators of ocean health. Plastic residues are widely distributed in the oceans and are recognised as hazardous contaminants, and once ingested can cause several adverse effects on wildlife. This study aimed to identify and characterise plastic ingestion in the Guiana dolphins (Sotalia guianensis) from the Southwestern Tropical Atlantic by evaluating the stomach contents of stranded individuals through KOH digestion and identification of subsample of particles by LDIR Chemical Imaging System. Most of the individuals were contaminated, and the most common polymers identified were PU, PET and EVA. Microplastics were more prevalent than larger plastic particles (meso- and macroplastics). Smaller particles were detected during the rainy seasons. Moreover, there was a positive correlation between the stomach content mass and the number of microplastics, suggesting contamination through trophic transfer.
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Affiliation(s)
- Letícia Gonçalves Pereira
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos - Aquasis, Programa de Mamíferos Marinhos, Rua Pintor João Figueiredo, s/n, Iparana, Caucaia, CE 61627-250, Brazil; Programa de Pós-Graduação em Biodiversidade - Universidade Federal Rural de Pernambuco, Brazil.
| | - Guilherme V B Ferreira
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil
| | - Anne K S Justino
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil
| | - Kelen Melo Tavares de Oliveira
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos - Aquasis, Programa de Mamíferos Marinhos, Rua Pintor João Figueiredo, s/n, Iparana, Caucaia, CE 61627-250, Brazil
| | - Monique Torres de Queiroz
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos - Aquasis, Programa de Mamíferos Marinhos, Rua Pintor João Figueiredo, s/n, Iparana, Caucaia, CE 61627-250, Brazil; Instituto Oceanográfico - Universidade de São Paulo, Praça Oceanográfico, 191, São Paulo, SP 05508-120, Brazil
| | - Natascha Schmidt
- Norwegian Institute for Air Research (NILU), Fram Centre, Tromsø, Norway
| | - Vincent Fauvelle
- Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
| | - Vitor Luz Carvalho
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos - Aquasis, Programa de Mamíferos Marinhos, Rua Pintor João Figueiredo, s/n, Iparana, Caucaia, CE 61627-250, Brazil
| | - Flávia Lucena-Frédou
- Programa de Pós-Graduação em Biodiversidade - Universidade Federal Rural de Pernambuco, Brazil; Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil
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Justino AKS, Ferreira GVB, Fauvelle V, Schmidt N, Lenoble V, Pelage L, Martins K, Travassos P, Lucena-Frédou F. From prey to predators: Evidence of microplastic trophic transfer in tuna and large pelagic species in the southwestern Tropical Atlantic. Environ Pollut 2023; 327:121532. [PMID: 37001599 DOI: 10.1016/j.envpol.2023.121532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
Plastic pollution is present in most marine environments; however, contamination in pelagic predators, including species of economic interest, is still poorly understood. This study aims to access the macro- and microplastic contamination in tuna and large pelagic species and verify whether a trophic transfer occurs from prey to tunas captured by two fleets in the Southwestern Tropical Atlantic (SWTA). We combined different methodological approaches to analyse the intake of macro- and microplastics. In addition to examining the plastics in the fish' stomachs, we investigated the contamination in the prey retrieved from the guts of predators. A low frequency of occurrence (3%) of macroplastic was detected in the tuna and large pelagic species; conversely, we observed a high frequency of microplastic in the tuna's stomachs (100%) and prey analysed (70%). We evinced the trophic transfer of microplastics by analysing the ingestion rate of particles in prey retrieved from the tuna stomachs. In the 34 analysed prey, we detected 355 microplastic particles. The most contaminated prey were cephalopods and fishes of the Bramidae family. The most frequent microplastic shapes in both prey and tuna stomachs were foams, pellets and fibres (<1 mm). A variety of polymers were identified; the most frequent were styrene-butadiene rubber (SBR), polyamide (PA), polyethylene terephthalate (PET) and polyethylene (PE). Our findings enhance scientific knowledge of how the ecological behaviour of marine species can affect microplastic intake.
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Affiliation(s)
- Anne K S Justino
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil; Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France.
| | - Guilherme V B Ferreira
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
| | - Vincent Fauvelle
- Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
| | - Natascha Schmidt
- Norwegian Institute for Air Research (NILU), Fram Centre, Tromsø, Norway
| | - Véronique Lenoble
- Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France
| | - Latifa Pelage
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
| | - Karla Martins
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
| | - Paulo Travassos
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
| | - Flávia Lucena-Frédou
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
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Justino AKS, Ferreira GVB, Fauvelle V, Schmidt N, Lenoble V, Pelage L, Lucena-Frédou F. Exploring microplastic contamination in reef-associated fishes of the Tropical Atlantic. Mar Pollut Bull 2023; 192:115087. [PMID: 37263026 DOI: 10.1016/j.marpolbul.2023.115087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/03/2023]
Abstract
Microplastics (MPs) are ubiquitous in marine compartments, and their transboundary distribution favours the dispersion and accumulation of particles in ecosystems. This study investigated MP contamination in four coastal fish species (Haemulon squamipinna, Chaetodon ocellatus, Syacium micrurum, and Alphestes afer) from the southwestern Tropical Atlantic. An alkaline treatment was applied to extract MPs from the digestive tracts, and a Laser Direct Infrared (LDIR) system was used to identify polymers. All species analysed were contaminated with MPs, with Alphestes afer being the most contaminated (1.45 ± 1.09 MPs individual-1; frequency of occurrence 80 %). No significant differences were found in the number and size of detected particles among species. The most common shapes were fibres and films, and polyethylene was the most abundant polymer. This study provides important baseline data on MP contamination in coastal fish species inhabiting complex habitat areas relevant for conserving marine biodiversity.
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Affiliation(s)
- Anne K S Justino
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil; Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France.
| | - Guilherme V B Ferreira
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil
| | - Vincent Fauvelle
- Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
| | - Natascha Schmidt
- NILU - Norwegian Institute for Air Research, Fram Centre, Tromsø, Norway
| | - Véronique Lenoble
- Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France
| | - Latifa Pelage
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil
| | - Flávia Lucena-Frédou
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil
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Ferreira GVB, Justino AKS, Eduardo LN, Schmidt N, Martins JR, Ménard F, Fauvelle V, Mincarone MM, Lucena-Frédou F. Influencing factors for microplastic intake in abundant deep-sea lanternfishes (Myctophidae). Sci Total Environ 2023; 867:161478. [PMID: 36634781 DOI: 10.1016/j.scitotenv.2023.161478] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
Plastic debris is ubiquitous in the hydrosphere. Yet, we lack an understanding of contamination among deep-sea species and primarily how each trait can influence microplastic intake. We investigated microplastic contamination in the digestive tract of hyper-abundant mesopelagic lanternfishes (n = 364 individuals) from the Southwestern Tropical Atlantic, captured from 90 to 1000 m depth. Overall, microplastics were detected in most individuals analysed (frequency of occurrence = 68 %). Large microplastics, mostly of a filamentous shape were the most frequent, followed by smaller fragments and foams. Microplastics made of high-density polymers (PET, PVC, PA, SBR rubber) were more prevalent than low-density ones (PE, EVA and PBD rubber), especially under deeper layers. Larger microplastics were detected in lanternfishes captured off the northeastern Brazilian coast (mean 0.88 ± SE 0.06 mm) compared to those from around the Rocas Atoll and Fernando de Noronha Archipelago (0.70 ± 0.07 mm; p≤ 0.05), ∼350 km from the continent. Moreover, lanternfishes that migrate from the upper mesopelagic (200-500 m) to the epipelagic layers (<200 m) had simultaneously the highest intake and the smallest particles (1.65 ± 0.17 particles individual-1 and 0.55 ± 0.07 mm; p≤ 0.05). Biological mediated transport of microplastics from the epipelagic to the mesopelagic waters was evinced, but fishes foraging in shallower layers had the lowest intake (1.11 ± 0.10 part. ind.-1; p≤ 0.05). Furthermore, the jaw length was positively associated with an increment in microplastic intake (Incidence Rate Ratio = 1.1; p≤ 0.05). The lanternfishes that preferably prey upon fish larvae are more prone to microplastic intake than their counterparts, which forage mostly on crustaceans and gelatinous zooplankton (p≤ 0.05).
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Affiliation(s)
- Guilherme V B Ferreira
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil.
| | - Anne K S Justino
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil; Université de Toulon, Aix Marseille Univ., CNRS, IRD, Mediterranean Institute of Oceanography, Toulon, France
| | - Leandro N Eduardo
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil; MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Natascha Schmidt
- Aix Marseille Univ., Université de Toulon, CNRS, IRD, Mediterranean Institute of Oceanography, Marseille, France
| | - Júlia R Martins
- Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biodiversidade e Sustentabilidade (NUPEM), Programa de Pós-graduação em Ciências Ambientais e Conservação (PPG-CiAC), Av. São José do Barreto, 764, Macaé, RJ 27965-045, Brazil
| | - Frédéric Ménard
- Aix Marseille Univ., Université de Toulon, CNRS, IRD, Mediterranean Institute of Oceanography, Marseille, France
| | - Vincent Fauvelle
- Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
| | - Michael M Mincarone
- Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biodiversidade e Sustentabilidade (NUPEM), Av. São José do Barreto, 764, Macaé, RJ 27965-045, Brazil; Chapman University, Schmid College of Science and Technology, 1 University Drive, Orange, CA 92866, USA
| | - Flávia Lucena-Frédou
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE 52171-900, Brazil
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Meißner A, Gutsche R, Galldiks N, Kocher M, Jünger S, Eich M, Nogova L, Schmidt N, Ruge M, Goldbrunner R, Proescholdt M, Grau S, Lohmann P. P13.03.A Radiomics for the non-invasive assessment of the PDL-1 expression in patients with non-small cell lung cancer brain metastases. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
The expression level of programmed cell death ligand 1 (PDL-1) might be an indicator for response to immunotherapy using checkpoint inhibitors in patients with non-small cell lung cancer (NSCLC). As intra-tumoral differences and discrepancies between the PDL-1 expression in the primary tumor and the brain metastases may occur, a method for a reliable non-invasive assessment of the intracranial PDL-1 expression would be of clinical value. We evaluated the potential of MRI radiomics for a non-invasive assessment of the PDL-1 expression in patients with NSCLC brain metastases.
PATIENTS AND METHODS
Fifty-three patients with brain metastases from NSCLC from two university brain tumor centers (group 1, 36 patients; group 2, 17 patients) underwent tumor resection with subsequent immunohistochemical assessment of the PDL-1 expression. Brain metastases were manually segmented on preoperative T1-weighted contrast-enhanced MRI. Group 1 was used for model training and validation, group 2 for model testing. After image pre-processing and radiomics feature extraction from T1-weighted contrast-enhanced MRI, a test-retest analysis was performed to identify robust features prior to feature selection. The radiomics model was trained and validated using five-fold cross validation. Finally, the best performing radiomics model was applied to the test data. Diagnostic performance was evaluated using receiver operating characteristic (ROC) analyses.
RESULTS
An intracranial PDL-1 expression was found by immunohistochemistry in 18 of 36 patients (50%) in group 1, and 7 of 17 patients (41%) in group 2. Univariate analysis identified tumor volume as a significant clinical feature for PDL-1 expression (area under the ROC curve (AUC), 0.77). A random forest classifier using a four-parameter radiomics signature including tumor volume yielded an AUC of 0.83 ± 0.18 in the training data (group 1). Finally, the classifier achieved an AUC of 0.84 in the external test data (group 2).
CONCLUSION
The developed radiomics classifiers allows a non-invasive assessment of the intracranial PD-L1 expression in patients with NSCLC brain metastases with a high diagnostic performance.
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Affiliation(s)
- A Meißner
- Dept. of General Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - R Gutsche
- Inst. of Neuroscience and Medicine (INM-3/-4) , Juelich , Germany
| | - N Galldiks
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Center for Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne and Duesseldorf , Cologne , Germany
- Inst. of Neuroscience and Medicine (INM-3/-4) , Juelich , Germany
| | - M Kocher
- Dept. of Stereotactic and Functional Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Inst. of Neuroscience and Medicine (INM-3/-4) , Juelich , Germany
| | - S Jünger
- Dept. of General Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - M Eich
- Dept. of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - L Nogova
- Dept. I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University Hospital Cologne , Cologne , Germany
- Center for Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne and Duesseldorf , Cologne , Germany
| | - N Schmidt
- Dept. of Neurosurgery, University Hospital Regensburg , Regensburg , Germany
| | - M Ruge
- Dept. of Stereotactic and Functional Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Center for Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne and Duesseldorf , Cologne , Germany
| | - R Goldbrunner
- Dept. of General Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - M Proescholdt
- Dept. of Neurosurgery, University Hospital Regensburg , Regensburg , Germany
| | - S Grau
- Dept. of Neurosurgery, Klinikum Fulda, Academic Hospital of the University of Marburg , Fulda , Germany
| | - P Lohmann
- Inst. of Neuroscience and Medicine (INM-3/-4) , Juelich , Germany
- Dept. of Stereotactic and Functional Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
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Klee L, Fabrice A, Eisenburger N, Feddern S, Gabriel C, Kossow A, Niessen J, Schmidt N, Wiesmüller GA, Grüne B, Joisten C. Coping strategies during legally enforced quarantine and their association to psychological distress level: a cross-sectional study. Public Health 2022; 209:52-60. [PMID: 35809351 PMCID: PMC9197782 DOI: 10.1016/j.puhe.2022.05.022] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 05/03/2022] [Accepted: 05/31/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The non-pharmacological measures to contain the COVID-19 pandemic may lead to considerable psychological distress. The aim of the CoCo-Fakt study was to investigate possible coping strategies and their effects on psychological distress during legally enforced quarantine of infected persons (IPs) and their close contacts (CPs). STUDY DESIGN This was a cross-sectional cohort study. METHODS From 12 December 2020 to 6 January 2021, all IPs and their CPs (n = 8232) registered by the public health department (Cologne, Germany) were surveyed online. Psychosocial distress and coping were measured using sum scores; free-text answers related to specific strategies were subsequently categorised. RESULTS Psychosocial distress was higher in IPs than in CPs (P < .001). Although the mean coping score did not differ between both groups, it was influenced by the reason for quarantine (IP vs CP) besides gender, age, socio-economic status, living situation, psychological distress, resilience, physical activity and eating behaviour. This final regression model explained 25.9% of the variance. Most participants used active coping strategies, such as contact with the social environment, a positive attitude and hobbies. CONCLUSIONS Although psychological distress was higher in IPs than in CPs during the quarantine period, the mean coping score did not differ. The strategies most frequently used by IPs and CPs were activating social networks, a healthy lifestyle and professional support systems, such as the health department helpline. Appropriate advice should be implemented to prevent long-term psychological consequences when supporting affected people.
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Affiliation(s)
- L Klee
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute for Occupational Medicine and Social Medicine, University Hospital, Medical Faculty, RWTH Aachen University, Aachen, Germany.
| | - A Fabrice
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute for Occupational Medicine and Social Medicine, University Hospital, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - N Eisenburger
- Department for Physical Activity in Public Health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - S Feddern
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - C Gabriel
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - A Kossow
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute of Hygiene, University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - J Niessen
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - N Schmidt
- Department for Physical Activity in Public Health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - G A Wiesmüller
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Institute for Occupational Medicine and Social Medicine, University Hospital, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - B Grüne
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany
| | - C Joisten
- Cologne Health Department, Infektions- und Umwelthygiene, Neumarkt 15-21, 50667, Köln, Germany; Department for Physical Activity in Public Health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
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9
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Ourgaud M, Phuong NN, Papillon L, Panagiotopoulos C, Galgani F, Schmidt N, Fauvelle V, Brach-Papa C, Sempéré R. Identification and Quantification of Microplastics in the Marine Environment Using the Laser Direct Infrared (LDIR) Technique. Environ Sci Technol 2022; 56:9999-10009. [PMID: 35749650 DOI: 10.1021/acs.est.1c08870] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Here, we evaluate for the first time the performances of the newly developed laser direct infrared (LDIR) technique and propose an optimization of the initial protocol for marine microplastics (MPs) analysis. Our results show that an 8 μm porosity polycarbonate filter placed on a Kevley slide enables preconcentration and efficient quantification of MPs, as well as polymer and size determination of reference plastic pellets of polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), and polyethylene terephthalate (PET), with recoveries ranging from 80-100% and negligible blank values for particle sizes ranging from 200 to 500 μm. A spiked experiment using seawater, sediment, mussels, and fish stomach samples showed that the method responded linearly with significant slopes (R2 ranging from 0.93-1.0; p < 0.001, p < 0.01). Overall, 11 polymer types were identified with limited handling and an analysis time of ca. 3 h for most samples and 6 h for complex samples. Application of this technique to Mediterranean marine samples (seawater, sediment, fish stomachs and mussels) indicated MP concentrations and size distribution consistent with the literature. A high predominance of PVC (sediment, fish stomachs) and PE and PP (seawater, mussels) was observed in the analyzed samples.
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Affiliation(s)
- Mélanie Ourgaud
- Aix-Marseille University, Toulon University, CNRS, IRD, M I O, Marseille 13007, France
| | - Nam Ngoc Phuong
- Aix-Marseille University, Toulon University, CNRS, IRD, M I O, Marseille 13007, France
- PhuTho College of Medicine and Pharmacy, 2201 Hung Vuong Boulevard, Viettri City, PhuTho Province 290000, Viet Nam
| | - Laure Papillon
- Aix-Marseille University, Toulon University, CNRS, IRD, M I O, Marseille 13007, France
| | | | - François Galgani
- Laboratoire Environnement Ressources, Provence-Azur-Corse, IFREMER, Centre Méditerranée, Zone Portuaire de Brégaillon, CS20 330, 83507, La Seyne-sur-Mer Cedex, France
| | - Natascha Schmidt
- Aix-Marseille University, Toulon University, CNRS, IRD, M I O, Marseille 13007, France
| | - Vincent Fauvelle
- Aix-Marseille University, Toulon University, CNRS, IRD, M I O, Marseille 13007, France
| | - Christophe Brach-Papa
- Laboratoire Environnement Ressources, Provence-Azur-Corse, IFREMER, Centre Méditerranée, Zone Portuaire de Brégaillon, CS20 330, 83507, La Seyne-sur-Mer Cedex, France
| | - Richard Sempéré
- Aix-Marseille University, Toulon University, CNRS, IRD, M I O, Marseille 13007, France
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10
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Schmidt N, Denecke J, Schmidt J, Davies M, Heidermann T. Large scale experimental investigation on storage tank breathing during sudden cold heavy rain event. J Loss Prev Process Ind 2022. [DOI: 10.1016/j.jlp.2022.104825] [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: 10/17/2022]
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11
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Justino AKS, Ferreira GVB, Schmidt N, Eduardo LN, Fauvelle V, Lenoble V, Sempéré R, Panagiotopoulos C, Mincarone MM, Frédou T, Lucena-Frédou F. The role of mesopelagic fishes as microplastics vectors across the deep-sea layers from the Southwestern Tropical Atlantic. Environ Pollut 2022; 300:118988. [PMID: 35157937 DOI: 10.1016/j.envpol.2022.118988] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 11/01/2021] [Revised: 01/28/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Microplastics (MPs; <5 mm) are a macro issue recognised worldwide as a threat to biodiversity and ecosystems. Widely distributed in marine ecosystems, MPs have already been found in the deep-sea environment. However, there is little information on ecological mechanisms driving MP uptake by deep-sea species. For the first time, this study generates data on MP contamination in mesopelagic fishes from the Southwestern Tropical Atlantic (SWTA) to help understand the deep-sea contamination patterns. An alkaline digestion protocol was applied to extract MPs from the digestive tract of four mesopelagic fish species: Argyropelecus sladeni, Sternoptyx diaphana (Sternoptychidae), Diaphus brachycephalus, and Hygophum taaningi (Myctophidae). A total of 213 particles were recovered from 170 specimens, and MPs were found in 67% of the specimens. Fibres were the most common shape found in all species, whereas polyamide, polyethylene, and polyethylene terephthalate were the most frequent polymers. The most contaminated species was A. sladeni (93%), and the least contaminated was S. diaphana (45%). Interestingly, individuals caught in the lower mesopelagic zone (500-1000 m depth) were less contaminated with MPs than those captured in the upper mesopelagic layer (200-500 m). Our results highlight significant contamination levels and reveal the influence of mesopelagic fishes on MPs transport in the deep waters of the SWTA.
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Affiliation(s)
- Anne K S Justino
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil; Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France.
| | - Guilherme V B Ferreira
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
| | - Natascha Schmidt
- Aix Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Leandro N Eduardo
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil; Institut de Recherche pour le Développement (IRD), MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Vincent Fauvelle
- Aix Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Véronique Lenoble
- Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France
| | - Richard Sempéré
- Aix Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | | | - Michael M Mincarone
- Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biodiversidade e Sustentabilidade (NUPEM), Macaé, RJ, Brazil
| | - Thierry Frédou
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
| | - Flávia Lucena-Frédou
- Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, S/n, 52171-900, Recife, Brazil
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12
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Phuong NN, Duong TT, Le TPQ, Hoang TK, Ngo HM, Phuong NA, Pham QT, Doan TO, Ho TC, Da Le N, Nguyen TAH, Strady E, Fauvelle V, Ourgaud M, Schmidt N, Sempere R. Microplastics in Asian freshwater ecosystems: Current knowledge and perspectives. Sci Total Environ 2022; 808:151989. [PMID: 34883176 DOI: 10.1016/j.scitotenv.2021.151989] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/04/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
Plastic pollution in freshwater ecosystems, including microplastics (MPs) smaller than 5 mm, has become an emerging global concern. Asia is considered a "hot spot" for plastic pollution due to rapid economic and demographic growth, together with rapid urbanization. Here, we provide an overview of the current knowledge on MP abundance, sources, fate, and transfer in Asian freshwater ecosystems based on publications from January 2014 to May 2021. MP contamination in freshwater compartments, including water, sediment, and biota, was found to vary strongly. In water, it ranged from 0.004 items m-3 in a moderately urbanized region to more than 500,000 items m-3 in a dumping river in a highly populated watershed. In the sediment, MP abundance ranged from 1 to more than 30,000 items kg-1 dry weight. Polyethylene (PE) and polypropylene (PP) were predominant in both water and sediment compartments. MP was detected in biota samples from all the studied species, but their abundance depended on the locations and species studied. Overall, MP characteristics (form, size, color, and polymer type) depended on sources and natural constraints (mainly hydrodynamics). This study also revealed that MP in Asian freshwater ecosystems mainly originated from domestic wastewater/runoff, followed by industrial emissions, fisheries and aquaculture wastewater. Plastic waste is not efficiently recycled or incinerated in Asia, leading to MP transfer and accumulation in the aquatic environment, and, more importantly, to ingestion by low to high trophic level organisms. This work highlights several knowledge gaps to guides future research to improve MP pollution management for the sustainable development of highly populated regions such as Asia.
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Affiliation(s)
- Ngoc Nam Phuong
- PhuTho College of Medicine and Pharmacy, 2201 Hung Vuong Boulevard, Viet Tri City, Phu Tho Province 290000, Viet Nam; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Thi Thuy Duong
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
| | - Thi Phuong Quynh Le
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
| | - Trung Kien Hoang
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Ha My Ngo
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Ngoc Anh Phuong
- Vietnam National Lung Hospital, 463 Hoang Hoa Tham, Ba Dinh, Hanoi, Viet Nam
| | - Quoc Tuan Pham
- PhuTho College of Medicine and Pharmacy, 2201 Hung Vuong Boulevard, Viet Tri City, Phu Tho Province 290000, Viet Nam
| | - Thi Oanh Doan
- Faculty of Environment, Hanoi University of Natural Resources and Environment, Bac Tu Liem, Hanoi, Viet Nam
| | - Tu Cuong Ho
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Nhu Da Le
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Thi Anh Huong Nguyen
- University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Viet Nam
| | - Emilie Strady
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Vincent Fauvelle
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Mélanie Ourgaud
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Natascha Schmidt
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Richard Sempere
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
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13
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Ferreira GVB, Justino AKS, Eduardo LN, Lenoble V, Fauvelle V, Schmidt N, Junior TV, Frédou T, Lucena-Frédou F. Plastic in the inferno: Microplastic contamination in deep-sea cephalopods (Vampyroteuthis infernalis and Abralia veranyi) from the southwestern Atlantic. Mar Pollut Bull 2022; 174:113309. [PMID: 35090293 DOI: 10.1016/j.marpolbul.2021.113309] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/20/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Microplastics are a relevant environmental concern in marine ecosystems due to their ubiquity. However, knowledge on their dispersion patterns within the ocean basin and the interaction with biota are scarce and mostly limited to surface waters. This study investigated microplastic contamination in two species of deep-sea cephalopods from the southwestern Atlantic with different ecological behaviour: the vampire squid (Vampyroteuthis infernalis) and the midwater squid (Abralia veranyi). Microplastic contaminated most of the evaluated specimens. V. infernalis showed higher levels of contamination (9.58 ± 8.25 particles individual-1; p < 0.05) than A. veranyi (2.37 ± 2.13 part. ind.-1), likely due to the feeding strategy of V. infernalis as a faecal pellets feeder. The size of extracted microplastics was inversely proportional to the depth of foraging. The microplastics were highly heterogeneous in composition (shape, colour and polymer type). Our results provide information regarding microplastic interaction with deep-sea organisms and evidence of the biological influence in the microplastic sinking mechanism.
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Affiliation(s)
- Guilherme V B Ferreira
- Departamento de Pesca e Aquicultura (DEPAQ), da Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil..
| | - Anne K S Justino
- Departamento de Pesca e Aquicultura (DEPAQ), da Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil.; Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France
| | - Leandro Nolé Eduardo
- Departamento de Pesca e Aquicultura (DEPAQ), da Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil.; Institut de Recherche pour le Développement (IRD), MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Véronique Lenoble
- Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Toulon, France
| | - Vincent Fauvelle
- Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Marseille, France
| | - Natascha Schmidt
- Université de Toulon, Aix Marseille Univ., CNRS, IRD, MIO, Marseille, France
| | - Teodoro Vaske Junior
- Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Campus do Litoral Paulista, UNESP CLP, Instituto de Biociências, 11380-972 São Vicente, SP, Brazil
| | - Thierry Frédou
- Departamento de Pesca e Aquicultura (DEPAQ), da Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil
| | - Flávia Lucena-Frédou
- Departamento de Pesca e Aquicultura (DEPAQ), da Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, 52171-900 Recife, Brazil
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14
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Proescholdt M, Qiu Z, Falter J, Schmidt N. P13.14 Inhibition of extracellular carbonic anhydrases reduces glioblastoma cell invasion. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab180.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Malignant gliomas metabolize glucose preferably by glycolysis which is in accordance with the Warburg effect. This induces a high demand of glucose combined with a significant lactic acid load. The hypoxia-inducible carbonic anhydrase (CA) IX has been shown to moderate the extrusion of hydrogen ions into the extracellular space. Since the acidification of the extracellular environment contributes to host tissue invasion due to activation of proteolytic enzymes, we hypothesized that CA IX plays an important role in malignant glioma Recently, specific small molecule inhibitors of this enzyme have been developed and may provide an innovative strategy for anti - invasive treatment.
MATERIAL AND METHODS
Two established and 4 primary GBM cell lines (2 with mesenchymal and 2 with proneural transcriptional profile) were exposed to the CAIX inhibitor U104 under normoxic and hypoxic conditions. Cell toxicity was measured by ATP and crystal violet assay. For invasion assessment, a matrigel invasion chamber system with 8 µm pore size polycarbonate filter was used. CAIX expression was analyzed by quantitative RTPCR and Western Blot.
RESULTS
Hypoxia significantly induced CAIX expression in all cell lines. Invasiveness increased significantly under hypoxic conditions in the mesenchymal cells (p < 0.01). Regardless of oxygenation status, the mesenchymal group displayed significantly higher invasiveness compared to the proneural group (p = 0.006). Looking at all cell lines, invasion is significantly inhibited by U104, both under normoxic and hypoxic conditions (p < 0.01). However, while the mesenchymal group showed the highest susceptibility to CAIX inhibition followed by the proneurally differentiated group, the established cell lines were entirely refractory to CAIX inhibition.
CONCLUSION
Our data demonstrate that CAIX inhibition can effectively inhibit invasion in malignant glioma cells independent from oxygenation status, however the effects are significantly influenced by cell type specific biological features.
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Affiliation(s)
| | - Z Qiu
- University Hospital Regensburg, Regensburg, Germany
| | - J Falter
- University Hospital Regensburg, Regensburg, Germany
| | - N Schmidt
- University Hospital Regensburg, Regensburg, Germany
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15
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Bosle C, Tillmann J, Vonstein C, Rossmann C, Halbach S, Acet S, Schmidt N, Langosch C, De Bock F. Bewegungsförderung älterer Menschen als komplexe Intervention in Kommunen. Das Gesundheitswesen 2021. [DOI: 10.1055/s-0041-1732267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- C Bosle
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - J Tillmann
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - C Vonstein
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - C Rossmann
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - S Halbach
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - S Acet
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - N Schmidt
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - C Langosch
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
| | - F De Bock
- Bundeszentrale für gesundheitliche Aufklärung (BZgA)
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16
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Schmidt N, Castro-Jiménez J, Oursel B, Sempéré R. Phthalates and organophosphate esters in surface water, sediments and zooplankton of the NW Mediterranean Sea: Exploring links with microplastic abundance and accumulation in the marine food web. Environ Pollut 2021; 272:115970. [PMID: 33168380 DOI: 10.1016/j.envpol.2020.115970] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [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: 07/10/2020] [Revised: 10/12/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
In this study, surface seawater, sediment and zooplankton samples were collected from three different sampling stations in Marseille Bay (NW Mediterranean Sea) and were analyzed for both microplastics and organic plastic additives including seven phthalates (PAEs) and nine organophosphate esters (OPEs). PAE concentrations ranged from 100 to 527 ng L-1 (mean 191 ± 123 ng L-1) in seawater, 12-610 ng g-1 dw (mean 194 ± 193 ng g-1 dw) in sediment and 0.9-47 μg g-1 dw (mean 7.2 ± 10 μg g-1 dw) in zooplankton, whereas OPE concentrations varied between 9 and 1013 ng L-1 (mean 243 ± 327 ng L-1) in seawater, 13-49 ng g-1 dw (mean 25 ± 11 ng g-1 dw) in sediment and 0.4-4.6 μg g-1 dw (mean 1.6 ± 1.0 μg g-1 dw) in zooplankton. Microplastic counts in seawater ranged from 0 to 0.3 items m-3 (mean 0.05 ± 0.05 items m-3). We observed high fluctuations in contaminant concentrations in zooplankton between different sampling events. However, the smallest zooplankton size class generally exhibited the highest PAE and OPE concentrations. Field-derived bioconcentration factors (BCFs) showed that certain compounds are prone to bioaccumulate in zooplankton, including some of the most widely used chlorinated OPEs, but with different intensity depending on the zooplankton size-class. The concentration of plastic additives in surface waters and the abundance of microplastic particles were not correlated, implying that they are not necessarily good indicators for each other in this compartment. This is the first comprehensive study on the occurrence and temporal variability of PAEs and OPEs in the coastal Mediterranean based on the parallel collection of water, sediment and differently sized zooplankton samples.
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Affiliation(s)
- Natascha Schmidt
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France.
| | - Javier Castro-Jiménez
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France; IFREMER, Laboratory of Biogeochemistry of Organic Contaminants (LBCO), Rue de l'Ile d'Yeu, BP 21105, 44311, Nantes, Cedex 3, France.
| | - Benjamin Oursel
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France.
| | - Richard Sempéré
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France.
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17
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Tillmann J, Vonstein C, Rossmann C, Halbach S, Acet S, Schmidt N, Langosch C, De Bock F. Physical activity promotion of elderly people as a complex intervention: supportive toolbox. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Issue
In EU countries, almost 20% of the population is aged 65 or older. This longer life expectancy offers many opportunities but health risks as well. Health promotion measures like physical activity are of central importance but only a small proportion of the elderly meets the minimum level of physical activity recommended by the WHO. The project “Ageing in balance” investigates how a complex intervention to promote physical activity in older people can be implemented and facilitated by making practical tools centrally available.
Description of the problem
A complex intervention following the steps of an ideal-typical process and combining behavioural and structural preventive approaches is implemented in several model regions in Germany over three years (2019-2021). As a service at the federal level, a toolbox comprising tools for needs assessment, interventions and information on physical activity, project management, legal issues and financing is built up to support the work of local decision-makers. It's evaluated how setting approaches to promote physical activity for elderly people can be successful, which supporting and impeding factors exist and how the process can be supported by a flexible toolbox provided at federal level.
Results
Socioeconomically deprived model regions (rural, town, city) were recruited and started to raise awareness and to perform needs assessment. Building of local steering committees and implementing interventions are the next steps. Currently the toolbox contains systematically identified instruments for needs assessment, an intervention database with a newly developed evidence ranking system and several information modules.
Lessons
Facilitating promotion of physical activity in the elderly is important as prioritization and resources at local level are often limited. Making the implementation of setting approaches successful and providing the potentially most promising support from federal level is still pioneering work.
Key messages
The effort is to build up a flexible support system for local stakeholders to promote physical activity in elderly people. It is evaluated how a complex behavioural and structural prevention effort for elderly people can be implemented.
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Affiliation(s)
- J Tillmann
- Federal Centre of Health Education, Cologne, Germany
| | - C Vonstein
- Federal Centre of Health Education, Cologne, Germany
| | - C Rossmann
- Federal Centre of Health Education, Cologne, Germany
| | - S Halbach
- Federal Centre of Health Education, Cologne, Germany
| | - S Acet
- Federal Centre of Health Education, Cologne, Germany
| | - N Schmidt
- Federal Centre of Health Education, Cologne, Germany
| | - C Langosch
- Federal Centre of Health Education, Cologne, Germany
| | - F De Bock
- Federal Centre of Health Education, Cologne, Germany
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18
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Lier LM, Breuer C, Ferrari N, Friesen D, Maisonave F, Schmidt N, Graf C. Cost-effectiveness of a family-based multicomponent outpatient intervention program for children with obesity in Germany. Public Health 2020; 186:185-192. [PMID: 32858303 DOI: 10.1016/j.puhe.2020.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 05/15/2020] [Accepted: 06/09/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Facing an epidemic of childhood obesity and budget constraints, public health administrations are showing an urgent interest in interventions that are both health effective and cost-effective. Thus, this study intends to analyze the return on investment of these existing programs. STUDY DESIGN All analyses are based on a comprehensive data set from 249 children with obesity and overweight children who participated in the Children's Health InterventionaL Trial (CHILT), an 11-month outpatient multidisciplinary family-based program. METHODS Cost-effectiveness was assessed by comparing estimated savings associated with a reduction in weight and improvement of obesity-related health parameters with intervention costs. Projected future savings in health care expenditures were modeled on existing research, using estimates of health care costs associated with juvenile obesity and remission thresholds of obesity-related disease. RESULTS On average, participants achieved a 0.19-unit reduction in the body mass index standard deviation score, showed reduction in their blood pressure values (systolic = -1.76 mmHg, diastolic = -2.82 mmHg), and showed improvement in their high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol values (HDL = +1.31 mg/dL, LDL = -4.82 mg/dL). The intervention costs were 1799€ per participant, and the benefits of avoided future health care costs varied by individual. On an aggregated level, future savings amounted to between 1859€ and 1926€ per person, translating into a return on investment of 3.3-7.0%. CONCLUSIONS This study shows that a multicomponent obesity intervention, such as the CHILT, not only results in weight loss and improves important health parameters but also is cost-effective.
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Affiliation(s)
- L M Lier
- MA. Strategy & International Management, BSc Business Administration & Economics Department of Sports Economics and Sport Management, German Sport University Cologne, Cologne, Germany, Eisenstraße 5, 50925, Cologne, Germany.
| | - C Breuer
- Habilitation Sport Science Department of Sports Economics and Sport Management, German Sport University Cologne, Cologne, Germany
| | - N Ferrari
- PhD Sport Science Cologne Center for Prevention and Youth/Heart Center Cologne, University Hospital Cologne, Germany
| | - D Friesen
- MA Sports Science Institute of Movement and Neurosciences, German Sport University Cologne, Cologne, Germany
| | - F Maisonave
- Diploma in Sport Science Institute of Movement and Neurosciences, German Sport University Cologne, Cologne, Germany
| | - N Schmidt
- BA Sport Science, Institute of Movement and Neurosciences, German Sport University Cologne, Cologne, Germany
| | - C Graf
- Habilitation Sport Science, PhD Sports Medicine Institute of Movement and Neurosciences, German Sport University Cologne, Cologne, Germany
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Schmidt N, Castro-Jiménez J, Fauvelle V, Ourgaud M, Sempéré R. Occurrence of organic plastic additives in surface waters of the Rhône River (France). Environ Pollut 2020; 257:113637. [PMID: 31822360 DOI: 10.1016/j.envpol.2019.113637] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [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: 05/20/2019] [Revised: 09/27/2019] [Accepted: 11/15/2019] [Indexed: 05/22/2023]
Abstract
We present here a comprehensive study (1-year regular sampling) on the occurrence of major families of organic plastic additives in the Rhône River surface waters. Potential sources and contaminant export are also discussed. A total of 22 dissolved phase samples were analyzed for 22 organic additives mainly used in the plastic industry, including organophosphate esters (OPEs), phthalates (PAEs) and bisphenols (BPs). Our results indicate that PAEs were the most abundant class, with concentrations ranging from 97 to 541 ng L-1, followed by OPEs (85-265 ng L-1) and BPs (4-21 ng L-1). Among PAEs, diethylhexyl phthalate (DEHP) was the most abundant compound, whereas TCPP (Tris(1-chloro-2-propyl) phosphate) and TnBP (Tri(n-butyl)phosphate) were the predominant OPEs. Bisphenol S was the only BP detected. 5-54 metric tons year-1 of dissolved organic plastic additives of emerging concern are estimated to be exported to the Gulf of Lion by the Rhône River, which is the main freshwater source of the Mediterranean Sea.
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Affiliation(s)
- Natascha Schmidt
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France
| | - Javier Castro-Jiménez
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France
| | - Vincent Fauvelle
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France
| | - Mélanie Ourgaud
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France
| | - Richard Sempéré
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (M I O), UM 110, Marseille, France.
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Schmidt N, Fauvelle V, Castro-Jiménez J, Lajaunie-Salla K, Pinazo C, Yohia C, Sempéré R. Occurrence of perfluoroalkyl substances in the Bay of Marseille (NW Mediterranean Sea) and the Rhône River. Mar Pollut Bull 2019; 149:110491. [PMID: 31421569 DOI: 10.1016/j.marpolbul.2019.110491] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 07/02/2019] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
Four perfluoroalkyl substances (PFAS) were analyzed in 62 duplicate surface water samples from the Rhône River and Marseille Bay (France; NW Mediterranean Sea). Perfluorooctane sulfonate (PFOS) was detected in all samples and exceeded the European Environmental Quality Standard (EQS) values in over 80% of the cases. The most contaminated samples were from the Rhône River (up to 200 ng L-1 ∑4 PFAS), as well as those collected near a wastewater treatment plant outlet in Marseille Bay (up to 9 ng L-1 ∑4 PFAS). While PFOS was the predominant PFAS in Marseille Bay, remarkably high concentrations of perfluorohexanoic acid (PFHxA) were measured in the Rhône River (8-193 ng L-1). The relative abundances of individual compounds differed thus significantly between the Rhône River and Marseille Bay, indicating different sources. A simulation made with the MARS3D model showed that PFOS inputs from the Rhône River can enter Marseille Bay at levels > EQS.
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Affiliation(s)
- Natascha Schmidt
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Marseille, France
| | - Vincent Fauvelle
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Marseille, France
| | - Javier Castro-Jiménez
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Marseille, France.
| | - Katixa Lajaunie-Salla
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Marseille, France
| | - Christel Pinazo
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Marseille, France
| | - Christophe Yohia
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, OSU-Intitut Pytheas, Marseille, France
| | - Richard Sempéré
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Marseille, France.
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Ody A, Thibaut T, Berline L, Changeux T, André JM, Chevalier C, Blanfuné A, Blanchot J, Ruitton S, Stiger-Pouvreau V, Connan S, Grelet J, Aurelle D, Guéné M, Bataille H, Bachelier C, Guillemain D, Schmidt N, Fauvelle V, Guasco S, Ménard F. From In Situ to satellite observations of pelagic Sargassum distribution and aggregation in the Tropical North Atlantic Ocean. PLoS One 2019; 14:e0222584. [PMID: 31527915 PMCID: PMC6748567 DOI: 10.1371/journal.pone.0222584] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 09/03/2019] [Indexed: 11/18/2022] Open
Abstract
The present study reports on observations carried out in the Tropical North Atlantic in summer and autumn 2017, documenting Sargassum aggregations using both ship-deck observations and satellite sensor observations at three resolutions (MSI-10 m, OLCI-300 m, VIIRS-750 m and MODIS-1 km). Both datasets reported that in summer, Sargassum aggregations were mainly observed off Brazil and near the Caribbean Islands, while they accumulated near the African coast in autumn. Based on in situ observations, we propose a five-class typology allowing standardisation of the description of in situ Sargassum raft shapes and sizes. The most commonly observed Sargassum raft type was windrows, but large rafts composed of a quasi-circular patch hundreds of meters wide were also observed. Satellite imagery showed that these rafts formed larger Sargassum aggregations over a wide range of scales, with smaller aggregations (of tens of m2 area) nested within larger ones (of hundreds of km2). Match-ups between different satellite sensors and in situ observations were limited for this dataset, mainly because of high cloud cover during the periods of observation. Nevertheless, comparisons between the two datasets showed that satellite sensors successfully detected Sargassum abundance and aggregation patterns consistent with in situ observations. MODIS and VIIRS sensors were better suited to describing the Sargassum aggregation distribution and dynamics at Atlantic scale, while the new sensors, OLCI and MSI, proved their ability to detect Sargassum aggregations and to describe their (sub-) mesoscale nested structure. The high variability in raft shape, size, thickness, depth and biomass density observed in situ means that caution is called for when using satellite maps of Sargassum distribution and biomass estimation. Improvements would require additional in situ and airborne observations or very high-resolution satellite imagery.
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Affiliation(s)
- Anouck Ody
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Thierry Thibaut
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Léo Berline
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Thomas Changeux
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Jean-Michel André
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Cristèle Chevalier
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Aurélie Blanfuné
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Jean Blanchot
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Sandrine Ruitton
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Valérie Stiger-Pouvreau
- Université de Bretagne Occidentale (UBO), Institut Universitaire Européen de la Mer (IUEM), LEMAR UMR 6539, Technopôle Brest-Iroise, Plouzané, France
| | - Solène Connan
- Université de Bretagne Occidentale (UBO), Institut Universitaire Européen de la Mer (IUEM), LEMAR UMR 6539, Technopôle Brest-Iroise, Plouzané, France
| | - Jacques Grelet
- IRD DR-OUEST, US191 IMAGO, Technopole de Brest-Iroise—Site de la Pointe du Diable, Plouzané, France
| | - Didier Aurelle
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Mathilde Guéné
- Université des Antilles, UMR BOREA, Campus de Fouillole, BP 592, Pointe-à-Pitre, Guadeloupe, France
| | | | - Céline Bachelier
- IRD DR-OUEST, US191 IMAGO, Technopole de Brest-Iroise—Site de la Pointe du Diable, Plouzané, France
| | - Dorian Guillemain
- Aix Marseille Univ, CNRS, IRD, IRSTEA, OSU PYTHEAS, Marseille, France
| | - Natascha Schmidt
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Vincent Fauvelle
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Sophie Guasco
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
| | - Frédéric Ménard
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
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Castro-Jiménez J, González-Fernández D, Fornier M, Schmidt N, Sempéré R. Macro-litter in surface waters from the Rhone River: Plastic pollution and loading to the NW Mediterranean Sea. Mar Pollut Bull 2019; 146:60-66. [PMID: 31426199 DOI: 10.1016/j.marpolbul.2019.05.067] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [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: 02/19/2019] [Revised: 05/09/2019] [Accepted: 05/31/2019] [Indexed: 05/21/2023]
Abstract
We present here the first estimates of floating macro-litter in surface waters from the Rhone River, based on monthly visual observations during 1-year period (2016-2017). Plastic represented 77% of the identified items, confirming its predominance in riverine floating litter. Fragments (2.5-50 cm) and Single Use Plastics (i.e. bags, bottles and cover/packaging) were among the most abundant items. Frequent non-plastic floating litter were paper items such as packaging material and newspapers, and metal items (mostly cans), representing 14% and 5% of total litter, respectively. A lower-end estimate resulted in ∼223,000 plastic items (∼0.7 t of plastic) transported annually by the Rhone surface waters to the Gulf of Lion (NW Mediterranean Sea). Floating macro-plastics are only a fraction of the total plastic export by the Rhone. Our study highlights the current discrepancy between field observations and theoretical estimations. Improvements are needed to harmonize data collection methodologies for field studies and model validation.
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Affiliation(s)
- Javier Castro-Jiménez
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110 Marseille, France.
| | - Daniel González-Fernández
- Department of Biology, University of Cádiz. Faculty of Marine and Environmental Sciences, Puerto Real, Spain
| | - Michel Fornier
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110 Marseille, France
| | - Natascha Schmidt
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110 Marseille, France
| | - Richard Sempéré
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110 Marseille, France
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Abstract
T cells are a fundamental component of the adaptive immune response in the context of both acute and chronic viral infection. Tight control over the metabolic processes within T cells provides an additional level of immune regulation that is interlinked with nutrient sensing and the continued balancing of co-stimulatory and co-inhibitory signals. Underpinning T cell responsiveness for viral control are a number of phenotypic and functional adaptations ensuring adequate nutrient uptake and their utilization. T cells responding to persistent viral infections often exhibit a profile associated with immune cell exhaustion and a dysregulated metabolic profile, driven by a combination of chronic antigenic stimulation and signals from the local microenvironment. Understanding alterations in these metabolic processes provides an important basis for immunotherapeutic strategies to treat persistent infections.
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Affiliation(s)
- L. J. Pallett
- Division of Infection and ImmunityUniversity College LondonLondonUK
| | - N. Schmidt
- Division of Infection and ImmunityUniversity College LondonLondonUK
| | - A. Schurich
- Department of Infectious DiseasesKing’s College LondonLondonUK
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24
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Schmidt N, Fauvelle V, Ody A, Castro-Jiménez J, Jouanno J, Changeux T, Thibaut T, Sempéré R. The Amazon River: A Major Source of Organic Plastic Additives to the Tropical North Atlantic? Environ Sci Technol 2019; 53:7513-7521. [PMID: 31244083 DOI: 10.1021/acs.est.9b01585] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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
The release of emerging organic contaminants is identified among the most critical hazards to the marine environment, and plastic additives have received growing attention due to their worldwide distribution and potential deleterious effects. Here, we report dissolved surface water concentrations of two important families of plastic additives (organophosphate esters (OPEs) and bisphenols) and other related organic compounds (perfluorinated chemicals) measured in the North Atlantic from Cape Verde to the West Indies. We found that OPEs were the most abundant contaminants, reaching remarkably high concentrations in open ocean waters (1200 km offshore of the American Coast, at the location of the Amazon river plume during the sampling period), with up to 1.3 μg L-1 (Σ9OPEs). A Lagrangian analysis confirmed that these high concentrations of contaminants originated from the Amazon River plume and were transported more than 3000 km by the North Brazil Current and its retroflection. We thus consider the Amazon River as a major source of organic contaminants of emerging concern to the tropical North Atlantic Ocean and suggest that medium-/long-range contaminant transport occurs, most certainly facilitated by the highly stratified conditions offered by the river plume.
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Affiliation(s)
- Natascha Schmidt
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
| | - Vincent Fauvelle
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
| | - Anouck Ody
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
| | - Javier Castro-Jiménez
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
| | - Julien Jouanno
- LEGOS, Université de Toulouse, IRD, CNRS, CNES, UPS , Toulouse 31400 , France
| | - Thomas Changeux
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
| | - Thierry Thibaut
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
| | - Richard Sempéré
- Aix-Marseille Univ., Toulon Univ., CNRS, IRD, Mediterranean Institute of Oceanography (MIO) , Marseille 13288 , France
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Hoyer L, Schmidt N. Verification of guideline conform mCRC treatment with EGFR inhibitors with real-world evidence data from EU5 countries. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.037] [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: 11/13/2022] Open
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Schmidt N, Schlotter P, Abdulcadir J. Fortbildungsbedarf zu FGM – Ergebnisse einer Pilotbefragung in München. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- N Schmidt
- Referat für Gesundheit und Umwelt München, Fachstelle 'Frau & Gesundheit und Gendermedizin', München, Deutschland
- Universitätskliniken Genf, Frauenklinik, Genf, Schweiz
| | - P Schlotter
- Ludwigs-Maximilians-Universität München, IBE, München, Deutschland
| | - J Abdulcadir
- Universitätskliniken Genf, Frauenklinik, Genf, Schweiz
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Harder T, Eckmanns T, Schmidt N, Kern W, Sin MA. Human resources estimates for antibiotic stewardship teams: evidence-based approaches for recommendations are needed. Clin Microbiol Infect 2018; 24:554-556. [DOI: 10.1016/j.cmi.2017.12.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 10/18/2022]
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Paluselli A, Fauvelle V, Schmidt N, Galgani F, Net S, Sempéré R. Distribution of phthalates in Marseille Bay (NW Mediterranean Sea). Sci Total Environ 2018; 621:578-587. [PMID: 29195205 DOI: 10.1016/j.scitotenv.2017.11.306] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/18/2017] [Accepted: 11/26/2017] [Indexed: 06/07/2023]
Abstract
Phthalic Acid Esters (PAEs) are a group of emerging organic contaminants that have become a serious issue because of their ubiquitous presence and hazardous impact on the marine environment worldwide. Seawater samples were collected monthly from December 2013 to November 2014 in the northwestern Mediterranean Sea (Marseille Bay). The samples were analyzed for dissolved organic carbon (DOC) as well as the molecular distribution of dissolved PAEs by using solid phase extraction followed by gas chromatography and mass spectrometry (GC/MS) analyses. The results demonstrated the occurrence of six PAEs, including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-isobutyl phthalate (DiBP), di-n-butyl phthalate (DnBP), benzylbutyl phthalate (BzBP) and diethylhexyl phthalate (DEHP), with total concentrations ranging from 130 to 1330ngL-1 (av. 522ngL-1). In Marseille Bay, the highest concentrations were detected in the bottom water from June to November 2014 and in the whole water column during the winter mixing period. This result suggests that resuspension of PAE-rich sediment, in relation to the accumulation of plastic debris above the seabed, or the higher degradation rate in the upper layer of the water column, plays a significant role in the PAE dynamics in coastal water. DEHP was the most abundant PAE in all of the surface samples and the summer bottom samples, followed by DiBP and DnBP, which also represent the largest fractions in the other bottom samples.
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Affiliation(s)
- Andrea Paluselli
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Vincent Fauvelle
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Natascha Schmidt
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - François Galgani
- IFREMER, Laboratoire Environnement Ressources, Provence Azur Corse (LER/PAC), Ifremer Centre de Méditerranée, ZP de Bregaillon, La Seyne sur Mer, France
| | - Sopheak Net
- Université de Lille, Laboratoire LASIR, Villeneuve d'Ascq, France
| | - Richard Sempéré
- Aix-Marseille Univ., Université de Toulon, CNRS, IRD, MIO, Marseille, France.
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Pawlitzki E, Schlenstedt C, Schmidt N, Rotkirch I, Gövert F, Hartwigsen G, Witt K. Spatial orientation and postural control in patients with Parkinson's disease. Gait Posture 2018; 60:50-54. [PMID: 29153480 DOI: 10.1016/j.gaitpost.2017.11.011] [Citation(s) in RCA: 8] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/31/2017] [Accepted: 11/11/2017] [Indexed: 02/02/2023]
Abstract
Postural instability is one of the most disabling and risky symptoms of advanced Parkinson's disease (PD). The purpose of this study was to investigate whether and how this is mediated by a centrally impaired spatial orientation. Therefore, we performed a spatial orientation study in 21 PD patients (mean age 68years, SD 8.5 years, 9 women) in a medically on condition and 21 healthy controls (mean age 68.9years, SD 5.5years, 14 women). We compared their spatial responses to the horizontal axis (Sakashita's visual target cancellation task), the vertical axis (bucket-test), the sagittal axis (tilt table test) and postural stability using the Fullerton Advanced Balance Scale (FAB). We found larger deviations on the vertical axis in PD patients, although the direct comparisons of performance in PD patients and healthy controls did not reveal significant differences. While the total scores of the FAB Scale were significantly worse in PD (25.9 points, SD 7.2 points) compared to controls (35.1 points, SD 2.3 points, p<0.01), the results from the spatialorientation task did not correlate with the FAB Scale. In summary, our results argue against a relation between perceptional deficits of spatial information and postural control in PD. These results are in favor of a deficit in higher order integration of spatial stimuli in PD that might influence balance control.
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Affiliation(s)
- E Pawlitzki
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany.
| | - C Schlenstedt
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - N Schmidt
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - I Rotkirch
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - F Gövert
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - G Hartwigsen
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences Leipzig, Stephanstraße 1a, 04103 Leipzig, Germany
| | - K Witt
- University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Department of Neurology, Arnold-Heller-Straße 3, 24105 Kiel, Germany; Department of Neurology, School of Medicine and Health Sciences - European Medical School, University Oldenburg, Steinweg 13-17, 26122 Oldenburg, Germany
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Schmidt N, Schlotter P, Abdulcadir J. Wissenstand FGM/C – Ergebnisse einer Pilotbefragung in München. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1622761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- N Schmidt
- Fachstelle „Frau & Gesundheit und Gendermedizin“, Referat für Gesundheit und Umwelt LH München
| | - P Schlotter
- Institut für medizinische Informationsverarbeitung, LMU, Medizinische Fakultät, München
| | - J Abdulcadir
- Abteilung für Gynäkologie, Universitätsklinik Genf, Schweiz
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Corradi E, Schmidt N, Räber N, De Mieri M, Hamburger M, Potterat O, Butterweck V. Metabolite profile and antiproliferative effects in HaCaT cells of a Salix reticulata extract. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- E Corradi
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - N Schmidt
- Institute for Pharma Technology, School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
| | - N Räber
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - M De Mieri
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - M Hamburger
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - O Potterat
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - V Butterweck
- Institute for Pharma Technology, School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
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Schmidt N, Hoyer L. Changing treatment patterns in metastatic colorectal cancer in EU5 countries from 2014 to 2016. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx375.021] [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: 11/13/2022] Open
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Beyer DA, Rody A, Cirkel C, Schmidt N, Neumann K. Mandatory colposcopic findings of severe cervical dysplasia. Are there key-signs that need our special attention? J Gynecol Obstet Hum Reprod 2017; 46:643-646. [PMID: 28698072 DOI: 10.1016/j.jogoh.2017.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/28/2017] [Accepted: 07/03/2017] [Indexed: 10/19/2022]
Abstract
INTRODUCTION To test for colposcopic differences between CIN2+ and non CIN2+ lesions of the "major changes" of the RIO 2011 nomenclature of the International Federation of Cervical Pathology (IFCPC). MATERIAL AND METHODS Retrospective cohort analysis of colposcopic examinations of patients with histologically confirmed CIN2+ (n=99) and non CIN2+ (n=102) lesions during a four years period. MAIN OUTCOME MEASURES leukoplakia, coarse mosaic and punctuation, dense acetowhitening, sharp boarders, ridge sign, atypical vessels. RESULTS Only coarse punctuation (P≤0.001; OR 9.64; 95% CI 2.15-43.13), coarse mosaic (P≤0.001; OR 4.00; 95% CI 1.83-8.73) and dense acetowhitening (P≤0.05; OR 1.86; 95% CI 1.06-3.26) occurred more frequently in CIN2+ lesions which were confirmed as predictors by a regression analysis. CONCLUSIONS Only coarse punctuation and coarse mosaic followed by dense acetowhitening as part of the "major changes" of the IFCPC Rio 2011 nomenclature achieve predictive values for CIN2+ lesions and should be therefore emphasized in colposcopy.
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Affiliation(s)
- D A Beyer
- Westpfalz-Klinikum GmbH, Hellmut-Hartert-Str. 1, 67655 Kaiserslautern, Germany
| | - A Rody
- Department of Gynaecology and Obstetrics, University of Luebeck, Luebeck, Germany
| | - C Cirkel
- Department of Gynaecology and Obstetrics, University of Luebeck, Luebeck, Germany
| | - N Schmidt
- Department of Gynaecology and Obstetrics, University of Luebeck, Luebeck, Germany
| | - K Neumann
- Department of Gynaecology and Obstetrics, University of Luebeck, Luebeck, Germany; Section of Gynaecological Endocrinology and Reproductive Medicine, Schleswig-Holstein University, Campus Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany.
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Schmidt N, Quack K, Fargnoli V, Epiney M, Irion O. Exploring barriers to reproductive health services for migrant women in Geneva using a community-based approach. Geburtshilfe Frauenheilkd 2017. [DOI: 10.1055/s-0037-1598145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- N Schmidt
- Departement d'obstétrique et gynécologie (HUG), Genf, Schweiz
| | - K Quack
- FrauenSpital Zürich, Zürich, Schweiz
| | - V Fargnoli
- Département de Sociologie (UNIGE), Genf, Schweiz
| | - M Epiney
- Departement d'obstétrique (HUG), Genf, Schweiz
| | - O Irion
- Departement d'obstétrique et gynécologie (HUG), Genf, Schweiz
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Abstract
Immunotherapy is considered a new treatment option for many tumor entities, as decades of research into cancer immunotherapy have recently yielded promising results. Indeed, impressive clinical results of checkpoint blockade inhibitors in malignant melanoma and non-small cell lung cancer indicate the therapeutic potential of tumor-specific immune restoration. Over the years, different immunotherapeutic approaches have been evaluated for the treatment of hepatocellular carcinoma (HCC) with some respectable results. In this review article, we will summarize the key studies of the past 30 years and will elucidate in which direction the dynamic field of HCC immunotherapy is currently moving.
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Schmidt N, Fargnoli V, Epiney M, Irion O. Barriers to reproductive health services for migrant women in Geneva using a qualitative, community-based approach. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593055] [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] Open
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Bernhardt M, Schmidt N, Acker K. Changing treatment patterns in advanced & metastatic melanoma towards targeted therapies in EU5 countries from 2011 to 2015. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw387.30] [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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Schmidt N, Schmidt B, Dressel A, Gergei I, Klotsche J, Pieper L, Scharnagel H, Kleber M, März W, Wittchen H, Grammer T. Familial hypercholesterolemia in primary care in germany – Diabetes and cardiovascular risk evaluation: Targets and essential data for commitment of treatment (DETECT) Study. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.160] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fengler S, Roeske S, Heber I, Reetz K, Schulz JB, Riedel O, Wittchen HU, Storch A, Linse K, Baudrexel S, Hilker R, Mollenhauer B, Witt K, Schmidt N, Balzer-Geldsetzer M, Dams J, Dodel R, Gräber S, Pilotto A, Petrelli A, Fünkele S, Kassubek J, Kalbe E. Verbal memory declines more in female patients with Parkinson's disease: the importance of gender-corrected normative data. Psychol Med 2016; 46:2275-2286. [PMID: 27193073 DOI: 10.1017/s0033291716000908] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Data on gender-specific profiles of cognitive functions in patients with Parkinson's disease (PD) are rare and inconsistent, and possible disease-confounding factors have been insufficiently considered. METHOD The LANDSCAPE study on cognition in PD enrolled 656 PD patients (267 without cognitive impairment, 66% male; 292 with mild cognitive impairment, 69% male; 97 with PD dementia, 69% male). Raw values and age-, education-, and gender-corrected Z scores of a neuropsychological test battery (CERAD-Plus) were compared between genders. Motor symptoms, disease duration, l-dopa equivalent daily dose, depression - and additionally age and education for the raw value analysis - were taken as covariates. RESULTS Raw-score analysis replicated results of previous studies in that female PD patients were superior in verbal memory (word list learning, p = 0.02; recall, p = 0.03), while men outperformed women in visuoconstruction (p = 0.002) and figural memory (p = 0.005). In contrast, gender-corrected Z scores showed that men were superior in verbal memory (word list learning, p = 0.02; recall, p = 0.02; recognition, p = 0.04), while no difference was found for visuospatial tests. This picture could be observed both in the overall analysis of PD patients as well as in a differentiated group analysis. CONCLUSIONS Normative data corrected for gender and other sociodemographic variables are relevant, since they may elucidate a markedly different cognitive profile compared to raw scores. Our study also suggests that verbal memory decline is stronger in women than in men with PD. Future studies are needed to replicate these findings, examine the progression of gender-specific cognitive decline in PD and define different underlying mechanisms of this dysfunction.
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Affiliation(s)
- S Fengler
- Department of Medical Psychology,University Hospital Cologne,Germany
| | - S Roeske
- Department of Neurology,University Hospital Bonn, and German Center for Neurodegenerative Diseases (DZNE),Bonn,Germany
| | - I Heber
- Department of Neurology,Medical Faculty,RWTH Aachen University,Germany
| | - K Reetz
- Department of Neurology,Medical Faculty,RWTH Aachen University,Germany
| | - J B Schulz
- Department of Neurology,Medical Faculty,RWTH Aachen University,Germany
| | - O Riedel
- Leibniz-Institute of Prevention Research and Epidemiology,Department of Clinical Epidemiology,Bremen,Germany
| | - H U Wittchen
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden,Germany
| | - A Storch
- Division of Neurodegenerative Diseases,Department of Neurology,Technische Universität Dresden,Germany
| | - K Linse
- Division of Neurodegenerative Diseases,Department of Neurology,Technische Universität Dresden,Germany
| | - S Baudrexel
- Department of Neurology,J.W. Goethe University,Frankfurt/Main,Germany
| | - R Hilker
- Department of Neurology,J.W. Goethe University,Frankfurt/Main,Germany
| | - B Mollenhauer
- Department of Neuropathology,University Medical Center Goettingen,Germany
| | - K Witt
- Department of Neurology,Christian Albrechts University,Kiel,Germany
| | - N Schmidt
- Department of Neurology,Christian Albrechts University,Kiel,Germany
| | | | - J Dams
- Department of Neurology,Philipps University Marburg,Germany
| | - R Dodel
- Department of Neurology,Philipps University Marburg,Germany
| | - S Gräber
- Department of Neurodegenerative Diseases,Hertie Institute for Clinical Brain Research and German Center for Neurodegenerative Diseases (DZNE), University Tübingen, and German Center for Neurodegenerative Diseases, Tübingen,Germany
| | - A Pilotto
- Department of Neurodegenerative Diseases,Hertie Institute for Clinical Brain Research and German Center for Neurodegenerative Diseases (DZNE), University Tübingen, and German Center for Neurodegenerative Diseases, Tübingen,Germany
| | - A Petrelli
- Institute of Gerontology & Center for Neuropsychological Diagnostics and Intervention (CeNDI), University of Vechta,Germany
| | - S Fünkele
- Department of Neurology,University of Ulm,Germany
| | - J Kassubek
- Department of Neurology,University of Ulm,Germany
| | - E Kalbe
- Department of Medical Psychology,University Hospital Cologne,Germany
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Laux-Biehlmann A, Boyken J, Dahllöf H, Schmidt N, Zollner TM, Nagel J. Dynamic weight bearing as a non-reflexive method for the measurement of abdominal pain in mice. Eur J Pain 2015; 20:742-52. [PMID: 26684879 DOI: 10.1002/ejp.800] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Chronic pelvic pain (CPP) is a high burden for patients and society. It affects 15-24% of women in reproductive age and is an area of high unmet medical need. CPP can be caused by a wide range of visceral diseases such as abdominal infections, gastrointestinal or gynaecological diseases like endometriosis. Despite the high medical need for this condition, pharmacological approaches are hampered by the limited number of available methods for the behavioural evaluation of pain in inflammation-driven animal models of pelvic pain. METHODS The dynamic weight bearing (DWB) system was used for the evaluation of spontaneous behaviour changes in the zymosan-induced peritonitis mouse model. Inflammatory mediator levels were evaluated in peritoneal lavage and their correlation with the behavioural endpoints was assessed. We evaluated the effect on behavioural endpoints of the selective cyclooxygenase-2 (COX-2) inhibitor celecoxib and the Nav 1.8 blocker A-803467. RESULTS The presence of a relief posture, characterized by a significantly increased weight distribution towards the front paws, was observed following intraperitoneal injection of zymosan. A positive correlation was detected between PGE2 levels in the peritoneal lavage and DWB endpoints. In addition, zymosan-induced weight bearing changes were reverted by celecoxib and A-803467. CONCLUSIONS This study described for the first time the use of DWB as a non-subjective and non-reflexive method for the evaluation of inflammatory-driven abdominal pain in a mouse model.
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Affiliation(s)
- A Laux-Biehlmann
- Global Drug Discovery, Global Therapeutic Research Groups, Gynecological Therapies, Bayer Healthcare, Berlin, Germany
| | - J Boyken
- Global Drug Discovery, Global Therapeutic Research Groups, Gynecological Therapies, Bayer Healthcare, Berlin, Germany
| | - H Dahllöf
- Global Drug Discovery, Global Therapeutic Research Groups, Gynecological Therapies, Bayer Healthcare, Berlin, Germany
| | - N Schmidt
- Global Drug Discovery, Global Therapeutic Research Groups, Gynecological Therapies, Bayer Healthcare, Berlin, Germany
| | - T M Zollner
- Global Drug Discovery, Global Therapeutic Research Groups, Gynecological Therapies, Bayer Healthcare, Berlin, Germany
| | - J Nagel
- Global Drug Discovery, Global Therapeutic Research Groups, Gynecological Therapies, Bayer Healthcare, Berlin, Germany
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Pfäfflin F, Schmidt N, Tufa TB, Feldt T. Implementation of the who multimodal hand hygiene improvement strategy in selected wards of Asella Teaching Hospital, Ethiopia. Antimicrob Resist Infect Control 2015. [PMCID: PMC4475133 DOI: 10.1186/2047-2994-4-s1-p153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
Soft robots can exhibit diverse behaviors with simple types of actuation by partially outsourcing control to the morphological and material properties of their soft bodies, which is made possible by the tight coupling between control, body, and environment. In this paper, we present a method that will quantitatively characterize these diverse spatiotemporal dynamics of a soft body based on the information-theoretic approach. In particular, soft bodies have the ability to propagate the effect of actuation through the entire body, with a certain time delay, due to their elasticity. Our goal is to capture this delayed interaction in a quantitative manner based on a measure called momentary information transfer. We extend this measure to soft robotic applications and demonstrate its power using a physical soft robotic platform inspired by the octopus. Our approach is illustrated in two ways. First, we statistically characterize the delayed actuation propagation through the body as a strength of information transfer. Second, we capture this information propagation directly as local information dynamics. As a result, we show that our approach can successfully characterize the spatiotemporal dynamics of the soft robotic platform, explicitly visualizing how information transfers through the entire body with delays. Further extension scenarios of our approach are discussed for soft robotic applications in general.
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Affiliation(s)
- K Nakajima
- The Hakubi Center for Advanced Research, Kyoto University, 606-8501 Kyoto, Japan. Department of Applied Analysis and Complex Dynamical Systems, Graduate School of Informatics, Kyoto University, 606-8501 Kyoto, Japan
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Paschen L, Schmidt N, Wolff S, Cnyrim C, van Eimeren T, Zeuner KE, Deuschl G, Witt K. The olfactory bulb volume in patients with idiopathic Parkinson's disease. Eur J Neurol 2015; 22:1068-73. [PMID: 25912367 DOI: 10.1111/ene.12709] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 11/22/2014] [Accepted: 02/06/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE This study addresses the question of whether the neuropathological findings on the olfactory bulb (OB) in idiopathic Parkinson's disease (IPD) correspond to a detectable change in volume of the OB. Additionally, the relationship between OB volume and residual olfactory function, clinical disease characteristics and age are investigated. METHODS Fifty-two IPD patients were investigated and compared to 31 healthy age-matched controls. All participants were scanned using a 3 T magnetic resonance imaging MRI scanner including a T2 DRIVE sequence in coronal slices through the OB. The OB volumes were measured via manual segmentation of the OB. Olfactory testing was carried out using the Sniffin' Sticks test battery. RESULTS The OB volume in the IPD group was 42.1 mm³ (SD ± 11.6) for the right and 41.5 mm³ (SD ± 11.7) for the left OB and showed no difference from the controls. Additionally, there were no significant correlations between OB volume and disease characteristics such as disease duration or Unified Parkinson's Disease Rating Scale motor score. Likewise, patients' residual smell function did not correlate with their OB volume. In contrast, controls indicated a correlation between smell function and OB volume. CONCLUSION The study shows that high resolution MRI does not show a detectable volume loss of the OB in PD patients. It is concluded that OB measurement using in vivo high resolution MRI at 3 T is not helpful to identify IPD.
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Affiliation(s)
- L Paschen
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - N Schmidt
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - S Wolff
- Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - C Cnyrim
- Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - T van Eimeren
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - K E Zeuner
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - G Deuschl
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
| | - K Witt
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel Campus, Christian-Albrechts-University Kiel, Kiel, Germany
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Schmidt N, Witt K. Konzept der hypodopaminergen und hyperdopaminergen Verhaltensstörungen bei Parkinson-Patienten. Akt Neurol 2014. [DOI: 10.1055/s-0034-1370239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- N. Schmidt
- Klinik für Neurologie, Universitätsklinikum Schleswig-Holstein, Kiel
| | - K. Witt
- Klinik für Neurologie, Universitätsklinikum Schleswig-Holstein, Kiel
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Abstract
HISTORY AND ADMISSION FINDINGS A 37-year-old man complained about a lack of strength, an unproductive cough and myalgia predominantly thigh-focused with subfebrile temperatures for days. INVESTIGATIONS Laboratory investigations indicated rhabdomyolysis with acute kidney injury (AKI). Drug misuse was denied. Exertion and trauma could be excluded as well as rheumatologic or other infectious causes often responsible for rhabdomyolysis. PCR of a nasopharyngeal swab was positive for influenza A virus subtype H1N1. TREATMENT AND COURSE Because of a progressive course of AKI haemodialysis was initiated. Levels of creatine kinase declined and urinary excretion rised. Hypocalcaemia due to secondary hyperparathyreoidism was substituted. During hospitalisation two seizures appeared. After performing a magnetic resonance imaging (MRI) the seizures could be attributed to a posterior reversible encephalopathy syndrome (PRES) secondary to influenza infection. A medication with valproic acid was initiated. CONCLUSION Extrapulmonary manifestations of an influenza A (H1N1) virus infection are rare but have to be considered after exclusion of differential diagnosis in younger patients in particular. In addition to a therapy with neuraminidase inhibitors a symptomatic treatment is of paramount significance.
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Affiliation(s)
- G Fröhlich
- Medizinische Klinik I, Dr. Horst Schmidt Kliniken (HSK) Wiesbaden
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Bert B, Schmidt N, Voigt J, Fink H, Rex A. Evaluation of cage leaving behaviour in rats as a free choice paradigm. J Pharmacol Toxicol Methods 2013; 68:240-249. [DOI: 10.1016/j.vascn.2013.01.001] [Citation(s) in RCA: 9] [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] [Received: 06/14/2011] [Revised: 12/28/2012] [Accepted: 01/02/2013] [Indexed: 10/27/2022]
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Kissinger P, White S, Schmidt N, Taylor SN, Mena L, Lillis R, Some S, Defayette K, Adamski A, Rosenthal SL. O07.1 Sexual Relationship Importance and Condom Use Among Men Attending STD Clinics in Two Southern Cities in the United States. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kissinger P, White S, Schmidt N, Taylor SN, Mena L, Lillis R, Some SA, Defayette K, Martin DH. P2.095 Origins of Repeat Infections with Mycoplasma Genitalium (Mg) Among Heterosexual Men in Two Southern U.S. Cities. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0359] [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: 11/04/2022]
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