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Vergara-Luis I, Rutkoski CF, Urionabarrenetxea E, Almeida EA, Anakabe E, Olivares M, Soto M, Prieto A. Antimicrobials in Eisenia fetida earthworms: A comprehensive study from method development to the assessment of uptake and degradation. Sci Total Environ 2024; 922:171214. [PMID: 38408672 DOI: 10.1016/j.scitotenv.2024.171214] [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: 12/14/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
In this work, an accurate analytical method was developed for the simultaneous analysis of twenty-seven antimicrobials (AMs) in earthworms using liquid chromatography coupled to a triple quadrupole mass spectrometry detector (UHPLC-MS/MS). Adequate apparent recoveries (80-120 %) and limits of quantification (LOQ) (1 μg·kg-1 - 10 μg·kg-1) were obtained, with the exception of norfloxacin (34 μg·kg-1). The method was applied to evaluate the accumulation of sulfamethazine (SMZ) and tetracycline (TC) in earthworms after performing OECD-207 toxicity test, in which Eisenia fetida (E. fetida) organisms were exposed to soils spiked with 10 mg·kg-1, 100 mg·kg-1 or 1000 mg·kg-1 of SMZ and TC, individually. The results confirmed the bioaccumulation of both AMs in the organisms, showing a greater tendency to accumulate SMZ since higher bioconcentration factor values were obtained for this compound at the exposure concentrations tested. In addition, the degradation of both AMs in both matrices, soils and earthworms was studied using liquid chromatography coupled to a q-Orbitrap high resolution mass spectrometry detector. Thirteen transformation products (TPs) were successfully identified, eight of them being identified for the first time in soil/earthworm (such as 4-Amino-3-chloro-n-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide or 4-(dimethylamino)-1,11,12a-trihydroxy-6,6-dimethyl-3,7,10,12-tetraoxo-3,4,4a,5,5a,6,7,10,12,12a-decahydrotetracene-2-carboxamide, among others) and their formation/degradation trend over time was also studied. Regarding the biological effects, only SMZ caused changes in earthworm growth, evidenced by weight loss in earthworms exposed to concentrations of 100 mg·kg-1 and 1000 mg·kg-1. Riboflavin decreased at all concentrations of SMZ, as well as at the highest concentration of TC. This indicates that these antibiotics can potentially alter the immune system of E. fetida. This research represents a significant advance in improving our knowledge about the contamination of soil by AM over time. It investigates the various ways in which earthworms are exposed to AMs, either by skin contact or ingestion. Furthermore, it explores how these substances accumulate in earthworms, the processes by which earthworms break them down or metabolise them, as well as the resulting TPs. Finally, it examines the potential effects of these substances on the environment.
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Affiliation(s)
- I Vergara-Luis
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain.
| | - C F Rutkoski
- Environmental Engineering Post-Graduation Program, University of Blumenau, Blumenau, SC, Brazil.
| | - E Urionabarrenetxea
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain; CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain
| | - E A Almeida
- Environmental Engineering Post-Graduation Program, University of Blumenau, Blumenau, SC, Brazil; Department of Natural Science, University of Blumenau, Blumenau, SC, Brazil
| | - E Anakabe
- Department of Organic and Inorganic Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain
| | - M Olivares
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain
| | - M Soto
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain; CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain
| | - A Prieto
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain
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Pascual A, Álvarez JA, de la Varga D, Arias CA, Van Oirschot D, Kilian R, Soto M. Horizontal flow aerated constructed wetlands for municipal wastewater treatment: The influence of bed depth. Sci Total Environ 2024; 908:168257. [PMID: 37924877 DOI: 10.1016/j.scitotenv.2023.168257] [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: 03/14/2023] [Revised: 10/13/2023] [Accepted: 10/30/2023] [Indexed: 11/06/2023]
Abstract
The influence of bed depth on the performance of aerated horizontal constructed wetlands was investigated at the pilot plant scale. Two horizontal flow subsurface constructed wetlands (HF) intensified units of different bed depth (HF1: 0.90 m and HF2: 0.55 m, 0.8 m and 0.5 m water level, respectively) were fitted with forced aeration, while a third one (HFc, 0.55 m bed depth, 0.5 m water level) was used as control and not aerated. The three HF units were operated in parallel, receiving the same municipal wastewater pre-treated in a hydrolytic up-flow sludge blanket anaerobic digester. Applied surface loading rates (SLR) ranged from 20 to 80 g biochemical oxygen demand (BOD5)/m2·d and from 3.7 to 6.7 g total nitrogen (TN)/m2·d, while it ranges from 6 to 23 g BOD5/m2·d and from 1.1 to 1.7 g TN/m2·d in the control unit. Removal of total suspended solids (TSS) and BOD5 was usually close to a 100 % in all units, whilst chemical oxygen demand (COD) removal was higher for the HF1 unit (97 % on average, range of 96-99 %) than for HF2 (92 %, 82-98 %) and HFc (94 %, 86-99 %). TN removal reached on average 33 % (16-43 %) in HFc, 37 % (10-76 %) in HF2 and 51 % (21-79 %) in HF1. High TN removal required a longer aeration time for nitrification and higher effluent recirculation ratio to enhance denitrification. The results indicate that artificial aeration and a high bed depth allows to increase the SLR by a factor of 4 in HF1 but only by a factor of 2 in HF2.
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Affiliation(s)
- A Pascual
- Department of Chemistry, University of A Coruña, Spain.
| | | | | | - C A Arias
- Department of Biology, Aarhus University, Denmark.
| | | | | | - M Soto
- Department of Chemistry, University of A Coruña, Spain.
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Soto M, Rosenberg P, Ballard C, Vellas B, Miller D, Gauthier S, Carrillo MC, Lyketsos C, Ismail Z. CTAD Task Force Paper: Neuropsychiatric Symptoms in AD: Clinical Trials Targeting Mild Behavioral Impairment: A Report from the International CTAD Task Force. J Prev Alzheimers Dis 2024; 11:56-64. [PMID: 38230717 DOI: 10.14283/jpad.2023.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
The International CTAD Task Force (TF) addressed challenges related to designing clinical trials for agitation in dementia, presenting accomplishments from the two previous TFs on neuropsychiatric symptoms (NPS). In addition, this TF proposed a paradigm shift in NPS assessment and management, presenting Mild Behavioral Impairment (MBI) as a clinical syndrome. MBI is marked by later-life emergent and persistent NPS in dementia-free older persons (ranging from cognitively unimpaired to subjective cognitive decline to mild cognitive impairment), which facilitates earlier detection and better prognostication of Alzheimer's disease (AD). The TF has made the following recommendations for incorporation of NPS into AD preventative trials: (1) clinical trials targeting improvement in MBI symptoms should be undertaken; (2) treatment trials for MBI should be disease specific and confirm the diagnosis of participants using biomarkers; trials should include measures sensitive to cognitive changes in preclinical AD, which can serve as outcome measures, in addition to changes in biomarker levels; (3) as a first step, pharmacotherapeutic trials should address the full MBI complex as well as the specific symptoms/domains that constitute MBI; (4) clinical trials using problem-adaptation psychotherapy to target affective MBI should be considered; and (5) MBI should be considered in AD trials of disease modifying therapies. The well-validated and widely-used MBI Checklist (MBI-C) is an appropriate symptom rating scale for these studies, as it was developed specifically to identify and measure MBI in dementia-free persons. Other scales such as the Neuropsychiatric Inventory (NPI) may be used, although administration at two timepoints may be necessary to operationalize the MBI criterion of symptom persistence.
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Affiliation(s)
- M Soto
- Maria Soto, AGING team, axe MAINTAIN CERPOP, UMR 1295; 2. Research and Clinical Alzheimer's Disease Center, CMRR Gérontopôle, CHU Toulouse, HealthAge IHU, France,
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Hidalgo-Crespo J, Amaya-Rivas J, Ribeiro I, Soto M, Riel A, Zwolinski P. Informal waste pickers in guayaquil: Recycling rates, environmental benefits, main barriers, and troubles. Heliyon 2023; 9:e19775. [PMID: 37809813 PMCID: PMC10559109 DOI: 10.1016/j.heliyon.2023.e19775] [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: 01/20/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
Systems for managing municipal solid waste are typically ineffective in developing nations because of governments' deficient financial and administrative frameworks, poor rules, and a lack of suitable infrastructure and human resources. The informal sector plays an essential role in these systems by reprocessing waste into secondary raw materials, reducing collection and disposal costs, and, most importantly, benefiting the environment by avoiding incineration and landfilling. However, their actual contributions remain unknown. The present paper aims to understand the role of informal waste pickers (IWPs) in the waste management system of Guayaquil City and their environmental impact through the calculations of the carbon footprint (CF) avoided due to their aid. The survey design gathered information on their personal profiles, types, and rates of collected recyclables, market conditions, their main barriers, and troubles regarding their formalization. The results of the survey demonstrate that waste picking is mostly a male-driven activity, the average daily mass collected per IWP is 13 kg, the most collected recyclable waste is polyethylene terephthalate, their average monthly income is $179, and the total avoided CF of the entire informal waste picking process is almost 14 thousand tons of CO2 eq yearly. Further, IWPs prefer to operate alone, and only 16% of them would join a cooperative, despite their numerous financial, logistical, and personal challenges.
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Affiliation(s)
- J. Hidalgo-Crespo
- CNRS, Grenoble INP, G-SCOP, University Grenoble Alpes, Grenoble, France
- Facultad de Ingeniería Industrial, Universidad de Guayaquil, Ecuador
| | - J.L. Amaya-Rivas
- Facultad de Ingeniería Mecánica y Ciencias de la Producción, ESPOL Polytechnic University, Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil, Ecuador
| | - Inês Ribeiro
- IDMEC, Instituto Superior Técnico, Universidad de Lisboa, Portugal
| | - M. Soto
- Facultad de Ciencias, University of Coruña, A Coruña, Spain
| | - Andreas Riel
- CNRS, Grenoble INP, G-SCOP, University Grenoble Alpes, Grenoble, France
| | - Peggy Zwolinski
- CNRS, Grenoble INP, G-SCOP, University Grenoble Alpes, Grenoble, France
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Painous C, Pascual-Diaz S, Muñoz-Moreno E, Sánchez V, Pariente JC, Prats-Galino A, Soto M, Fernández M, Pérez-Soriano A, Camara A, Muñoz E, Valldeoriola F, Caballol N, Pont-Sunyer C, Martin N, Basora M, Tio M, Rios J, Martí MJ, Bargalló N, Compta Y. Midbrain and pons MRI shape analysis and its clinical and CSF correlates in degenerative parkinsonisms: a pilot study. Eur Radiol 2023; 33:4540-4551. [PMID: 36773046 PMCID: PMC10290009 DOI: 10.1007/s00330-023-09435-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/19/2022] [Accepted: 01/08/2023] [Indexed: 02/12/2023]
Abstract
OBJECTIVES To conduct brainstem MRI shape analysis across neurodegenerative parkinsonisms and control subjects (CS), along with its association with clinical and cerebrospinal fluid (CSF) correlates. METHODOLOGY We collected demographic and clinical variables, performed planimetric and shape MRI analyses, and determined CSF neurofilament-light chain (NfL) levels in 84 participants: 11 CS, 12 with Parkinson's disease (PD), 26 with multiple system atrophy (MSA), 21 with progressive supranuclear palsy (PSP), and 14 with corticobasal degeneration (CBD). RESULTS MSA featured the most extensive and significant brainstem shape narrowing (that is, atrophy), mostly in the pons. CBD presented local atrophy in several small areas in the pons and midbrain compared to PD and CS. PSP presented local atrophy in small areas in the posterior and upper midbrain as well as the rostral pons compared to MSA. Our findings of planimetric MRI measurements and CSF NfL levels replicated those from previous literature. Brainstem shape atrophy correlated with worse motor state in all parkinsonisms and with higher NfL levels in MSA, PSP, and PD. CONCLUSION Atypical parkinsonisms present different brainstem shape patterns which correlate with clinical severity and neuronal degeneration. In MSA, shape analysis could be further explored as a potential diagnostic biomarker. By contrast, shape analysis appears to have a rather limited discriminant value in PSP. KEY POINTS • Atypical parkinsonisms present different brainstem shape patterns. • Shape patterns correlate with clinical severity and neuronal degeneration. • In MSA, shape analysis could be further explored as a potential diagnostic biomarker.
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Affiliation(s)
- C Painous
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - S Pascual-Diaz
- Magnetic Resonance Imaging Core Facility, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Laboratory of Surgical Neuroanatomy (LSNA), Universitat de Barcelona, Barcelona, Spain
| | - E Muñoz-Moreno
- Magnetic Resonance Imaging Core Facility, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - V Sánchez
- Centre de Diagnostic Per La Imatge (CDIC), Hospital Clinic, Barcelona, Spain
| | - J C Pariente
- Magnetic Resonance Imaging Core Facility, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - A Prats-Galino
- Centre de Diagnostic Per La Imatge (CDIC), Hospital Clinic, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - M Soto
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - M Fernández
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - A Pérez-Soriano
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - A Camara
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - E Muñoz
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - F Valldeoriola
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - N Caballol
- UParkinson Centro Médico Teknon, Grupo Hospitalario Quirón Salud, Barcelona, Spain
- Department of Neurology, Hospital Sant Joan Despí Moisès Broggi and Hospital General de L'Hospitalet, Consorci Sanitari Integral, Barcelona, Spain
| | - C Pont-Sunyer
- Neurology Unit, Hospital General de Granollers, Universitat Internacional de Catalunya, Barcelona, Spain
| | - N Martin
- Department of Anaesthesiology, Hospital Clinic, Barcelona, Spain
| | - M Basora
- Department of Anaesthesiology, Hospital Clinic, Barcelona, Spain
| | - M Tio
- Department of Anaesthesiology, Hospital Clinic, Barcelona, Spain
| | - J Rios
- Medical Statistics Core Facility, IDIBAPS & Biostatistics Unit, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain
| | - M J Martí
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain
| | - N Bargalló
- Magnetic Resonance Imaging Core Facility, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.
- Laboratory of Surgical Neuroanatomy (LSNA), Universitat de Barcelona, Barcelona, Spain.
- Neuroradiology Service, Hospital Clínic de Barcelona, 170 Villarroel Street, 08036, Barcelona, Spain.
| | - Y Compta
- Parkinson's Disease & Movement Disorders Unit, Parkinson's Disease and Other Degenerative Movement Disorders Team, Neurology Service, Hospital Clínic de Barcelona, IDIBAPS, CIBERNED (CB06/05/0018-ISCIII), ERN-RND, Institut Clínic de Neurociències (UBNeuro), Department of Medicine, School of Medicine, Universitat de Barcelona, Catalonia, Barcelona, Spain.
- Lab of Parkinson Disease and Other Neurodegenerative Movement Disorders, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Institut de Neurociències, Hospital Clínic de Barcelona, Institut de Neurociències (UBNeuro), Universitat de Barcelona, Catalonia, Barcelona, Spain.
- Neuroradiology Service, Hospital Clínic de Barcelona, 170 Villarroel Street, 08036, Barcelona, Spain.
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Garcia-Velasco N, Carrero JA, Urionabarrenetxea E, Doni L, Zaldibar B, Izagirre U, Soto M. Innovative in vivo and in vitro bioassays for the establishment of toxicity thresholds of pollutants in sediment quality assessment using polychaetes and their immune cells. Chemosphere 2023; 311:136935. [PMID: 36309051 DOI: 10.1016/j.chemosphere.2022.136935] [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: 04/30/2022] [Revised: 10/07/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Sediment toxicity testing has become a crucial component for assessing the risks posed by contaminated sediments and for the development of sediment quality assessment strategies. Commonly used organisms for bioassays with estuarine sediments include amphipods, Arenicola marina polychaetes and echinoids. Among the latter, the Sea Urchin Embryo test (SET) is the most widely used. However, one relevant limitation of this bioassay is the unavailability of gametes all year-round, particularly outside the natural spawning seasons. Consequently, the establishment of an appropriate and complementary model organism for a continuous assessment of sediment quality is recommended. A reliable assessment of the hazards resulting from pollutants in sediments or pore water, can be achieved with ecologically relevant species of sediment such as the polychaete Hediste diversicolor, which is widespread in estuaries and has the capacity to accumulate pollutants. The aim of this work was to develop reliable in vivo and in vitro bioassays with H. diversicolor and its coelomocytes (immune cells) to determine the toxicity thresholds of different contaminants bounded to sediments or resuspended into water. Polychaetes were exposed to sublethal concentrations of CuCl2 (in vivo) and a non-invasive method for collection of polychaetes coelomocytes was applied for the in vitro bioassay, exposing cells to a series of CuCl2 and AgNPs concentrations. Same reference toxicants were used to expose Paracentrotus lividus following the SET (ICES Nº 51; Beiras et al., 2012) and obtained toxicity thresholds were compared between the two species. In vivo exposure of polychaetes to high concentrations of Cu produced weight loss and histopathological alterations. After in vitro approaches, a significant decrease in coelomocytes viability was recorded for both toxicants, in a monotonic dose-response curve, at very short-exposure times (2 h). The toxicity thresholds obtained with polychaetes were in line with the ones obtained with the SET, concluding that their sensitivity is similar. In conclusion, in vivo and in vitro bioassays developed with H. diversicolor are accurate toxicity screenings of pollutants that could be bounded to sediments or dissolved in the pore water, and may complement the SET outside the spawning period of the echinoderms. The bioassays herein developed could be applied not only to establish the toxicity thresholds of individual compounds or mixtures, but also to assess the toxicity of field collected sediments.
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Affiliation(s)
- N Garcia-Velasco
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain.
| | - J A Carrero
- Dept. of Applied Chemistry, Faculty of Chemistry, University of the Basque Country (UPV/EHU), Manuel de Lardizabal Pasealekua 3, 20018 Donostia, Basque Country, Spain
| | - E Urionabarrenetxea
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - L Doni
- Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - B Zaldibar
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - U Izagirre
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - M Soto
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
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Sánchez M, Ramos DR, Fernández MI, Aguilar S, Ruiz I, Canle M, Soto M. Removal of emerging pollutants by a 3-step system: Hybrid digester, vertical flow constructed wetland and photodegradation post-treatments. Sci Total Environ 2022; 842:156750. [PMID: 35750172 DOI: 10.1016/j.scitotenv.2022.156750] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 03/23/2022] [Revised: 05/17/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The removal of emerging pollutants from municipal wastewater was studied for the first time using a three-step pilot-scale system: 1) hybrid digester (HD) as first step, 2) subsurface vertical flow constructed wetland (VF) as second step, and 3) photodegradation (PD) unit as third step or post-treatment. The HD and VF units were built and operated in series with effluent recirculation at pilot scale. For the PD post-treatment, three alternatives were studied at lab-scale, i) UVC irradiation at 254 nm (0.5 h exposure time), ii) UVA irradiation at 365 nm using a TiO2-based photocatalyst and iii) sunlight irradiation using a TiO2-based photocatalyst, the last two for 1 and 2 h. Alternative iii) was also tested at pilot-scale. Degradation of nine compounds was evaluated: acetaminophen (ACE), caffeine (CAF), carbamazepine (CBZ), ketoprofen (KET), ibuprofen (IBU), diclofenac (DCL), clofibric acid (ACB), bisphenol A (BPA), and sotalol (SOT). Overall, the HD-VF-UVC system completely removed (>99.5 %) ACE, CAF, KET, IBU, DCL and ACB, and to a lesser extent SOT (98 %), BPA (83 %) and CBZ (51 %). On the other hand, the HD-VF-UVA/TiO2 system (at 2 h) achieved >99.5 % removal of ACE, CAF, KET, IBU and DCL while ACB, BPA, CBZ and SOT were degraded by 83 %, 81 %, 78 % and 68 %, respectively. Working also at 2 h of exposure time, in summer conditions, the HD-VF-Sol/TiO2 system achieved >99.5 % removal of ACE, CAF, KET, IBU, DCL and ACB, and to a minor extent BPA (80 %), SOT (74 %) and CBZ (69 %). Similar results, although slightly lower for SOT (60 %) and CBZ (59 %), were obtained in the pilot sunlight plus TiO2 catalyst unit. However, the use of sunlight irradiation with a TiO2-based photocatalyst clearly showed lower removal efficiency in autumn conditions (i.e., 47 % SOT, 31 % CBZ).
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Affiliation(s)
- M Sánchez
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain
| | - D R Ramos
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain
| | - M I Fernández
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain
| | - S Aguilar
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain; Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
| | - I Ruiz
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain
| | - M Canle
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain
| | - M Soto
- Dept. of Chemistry, Faculty of Sciences & CICA, University of A Coruña, E-15071 A Coruña, Galiza, Spain.
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8
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Mortier P, Vilagut G, Alayo I, Ferrer M, Amigo F, Aragonès E, Aragón-Peña A, Asúnsolo del Barco A, Campos M, Espuga M, González-Pinto A, Haro J, López Fresneña N, Martínez de Salázar A, Molina J, Ortí-Lucas R, Parellada M, Pelayo-Terán J, Pérez-Gómez B, Pérez-Zapata A, Pijoan J, Plana N, Polentinos-Castro E, Portillo-Van Diest A, Puig M, Rius C, Sanz F, Serra C, Urreta-Barallobre I, Kessler R, Bruffaerts R, Vieta E, Pérez-Solá V, Alonso J, Alayo I, Alonso M, Álvarez M, Amann B, Amigo FF, Anmella G, Aragón A, Aragonés N, Aragonès E, Arizón AI, Asunsolo A, Ayora A, Ballester L, Barbas P, Basora J, Bereciartua E, Ignasi Bolibar IB, Bonfill X, Cotillas A, Cuartero A, de Paz C, Cura ID, Jesus del Yerro M, Diaz D, Domingo JL, Emparanza JI, Espallargues M, Espuga M, Estevan P, Fernandez MI, Fernandez T, Ferrer M, Ferreres Y, Fico G, Forjaz MJ, Barranco RG, Garcia TorrecillasC. Garcia-Ribera JM, Garrido A, Gil E, Gomez M, Gomez J, Pinto AG, Haro JM, Hernando M, Insigna MG, Iriberri M, Jimenez N, Jimenez X, Larrauri A, Leon F, Lopez-Fresneña N, Lopez C, Lopez-Atanes Juan Antonio Lopez-Rodriguez M, Lopez-Cortacans G, Marcos A, Martin J, Martin V, Martinez-Cortés M, Martinez-Martinez R, Martinez de Salazar AD, Martinez I, Marzola M, Mata N, Molina JM, de Dios Molina J, Molinero E, Mortier P, Muñoz C, Murru A, Olmedo J, Ortí RM, Padrós R, Pallejà M, Parra R, Pascual J, Pelayo JM, Pla R, Plana N, Aznar CP, Gomez BP, Zapata AP, Pijoan JI, Polentinos E, Puertolas B, Puig MT, Quílez A, Quintana MJ, Quiroga A, Rentero D, Rey C, Rius C, Rodriguez-Blazquez C, Rojas MJ, Romero Y, Rubio G, Rumayor M, Ruiz P, Saenz M, Sanchez J, Sanchez-Arcilla I, Sanz F, Serra C, Serra-Sutton V, Serrano M, Sola S, Solera S, Soto M, Tarrago A, Tolosa N, Vazquez M, Viciola M, Vieta E, Vilagut G, Yago S, Yañez J, Zapico Y, Zorita LM, Zorrilla I, Zurbano SL, Perez-Solá V. Four-month incidence of suicidal thoughts and behaviors among healthcare workers after the first wave of the Spain COVID-19 pandemic. J Psychiatr Res 2022; 149:10-17. [PMID: 35217315 PMCID: PMC8852847 DOI: 10.1016/j.jpsychires.2022.02.009] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/08/2022] [Accepted: 02/14/2022] [Indexed: 12/22/2022]
Abstract
Healthcare workers (HCW) are at high risk for suicide, yet little is known about the onset of suicidal thoughts and behaviors (STB) in this important segment of the population in conjunction with the COVID-19 pandemic. We conducted a multicenter, prospective cohort study of Spanish HCW active during the COVID-9 pandemic. A total of n = 4809 HCW participated at baseline (May-September 2020; i.e., just after the first wave of the pandemic) and at a four-month follow-up assessment (October-December 2020) using web-based surveys. Logistic regression assessed the individual- and population-level associations of separate proximal (pandemic) risk factors with four-month STB incidence (i.e., 30-day STB among HCW negative for 30-day STB at baseline), each time adjusting for distal (pre-pandemic) factors. STB incidence was estimated at 4.2% (SE = 0.5; n = 1 suicide attempt). Adjusted for distal factors, proximal risk factors most strongly associated with STB incidence were various sources of interpersonal stress (scaled 0-4; odds ratio [OR] range = 1.23-1.57) followed by personal health-related stress and stress related to the health of loved ones (scaled 0-4; OR range 1.30-1.32), and the perceived lack of healthcare center preparedness (scaled 0-4; OR = 1.34). Population-attributable risk proportions for these proximal risk factors were in the range 45.3-57.6%. Other significant risk factors were financial stressors (OR range 1.26-1.81), isolation/quarantine due to COVID-19 (OR = 1.53) and having changed to a specific COVID-19 related work location (OR = 1.72). Among other interventions, our findings call for healthcare systems to implement adequate conflict communication and resolution strategies and to improve family-work balance embedded in organizational justice strategies.
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Affiliation(s)
- P. Mortier
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Corresponding author. IMIM, PRBB Building. Carrer del Doctor Aiguader 88, 08003, Barcelona, Spain
| | - G. Vilagut
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - I. Alayo
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - M. Ferrer
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain
| | - F. Amigo
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - E. Aragonès
- Institut d’Investigació en Atenció Primària IDIAP Jordi Gol, Barcelona, Spain,Atenció Primària Camp de Tarragona, Institut Català de la Salut, Spain
| | - A. Aragón-Peña
- Epidemiology Unit, Regional Ministry of Health, Community of Madrid, Madrid, Spain,Fundación Investigación e Innovación Biosanitaria de AP, Comunidad de Madrid, Madrid, Spain
| | - A. Asúnsolo del Barco
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcala, Alcalá de Henares, Spain,Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain,Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, The City University of New York, New York, NY, United States
| | - M. Campos
- Service of Prevention of Labor Risks, Medical Emergencies System, Generalitat de Catalunya, Spain
| | - M. Espuga
- Occupational Health Service. Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - A. González-Pinto
- Hospital Universitario Araba-Santiago, Vitoria-Gasteiz, Spain,CIBER Salud Mental (CIBERSAM), Madrid, Spain
| | - J.M. Haro
- CIBER Salud Mental (CIBERSAM), Madrid, Spain,Parc Sanitari Sant Joan de Déu, Barcelona, Spain,Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | | | | | - J.D. Molina
- CIBER Salud Mental (CIBERSAM), Madrid, Spain,Villaverde Mental Health Center. Clinical Management Area of Psychiatry and Mental Health, Psychiatric Service, Hospital Universitario 12 de Octubre, Madrid, Spain,Research Institute Hospital 12 de Octubre (i+12), Madrid, Spain,Faculty of Health Sciences, Universidad Francisco de Vitoria, Madrid, Spain
| | | | - M. Parellada
- CIBER Salud Mental (CIBERSAM), Madrid, Spain,Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - J.M. Pelayo-Terán
- CIBER Salud Mental (CIBERSAM), Madrid, Spain,Servicio de Psiquiatría y Salud Mental. Hospital el Bierzo, Gerencia de Asistencia Sanitaria del Bierzo (GASBI), Gerencia Regional de Salud de Castilla y Leon (SACYL), Ponferrada, León, Spain,Area de Medicina Preventiva y Salud Pública. Universidad de León, León, Spain
| | - B. Pérez-Gómez
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain,National Center of Epidemiology, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - A. Pérez-Zapata
- Príncipe de Asturias University Hospital, Alcalá de Henares, Madrid, Spain
| | - J.I. Pijoan
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Hospital Universitario Cruces/ OSI EEC, Bilbao, Spain, Biocruces-Bizkaia Health Research Institute
| | - N. Plana
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Príncipe de Asturias University Hospital, Alcalá de Henares, Madrid, Spain
| | - E. Polentinos-Castro
- Fundación Investigación e Innovación Biosanitaria de AP, Comunidad de Madrid, Madrid, Spain,Research Unit. Primary Care Management. Madrid Health Service, Madrid, Spain,Department of Medical Specialities and Public Health. King Juan Carlos University, Madrid, Spain,Health Services Research Network on Chronic Diseases (REDISSEC), Madrid, Spain
| | - A. Portillo-Van Diest
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - M.T. Puig
- Universitat Autònoma de Barcelona (UAB), Barcelona, Spain,Department of Epidemiology and Public Health, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain,Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain,CIBER Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - C. Rius
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Agència de Salut Pública de Barcelona, Barcelona, Spain
| | - F. Sanz
- Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain,Research Progamme on Biomedical Informatics (GRIB), Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain,Instituto Nacional de Bioinformatica - ELIXIR-ES, Barcelona, Spain
| | - C. Serra
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Parc de Salut Mar PSMAR, Barcelona, Spain,CiSAL-Centro de Investigación en Salud Laboral, IMIM/UPF, Barcelona, Spain
| | - I. Urreta-Barallobre
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Osakidetza Basque Health Service, Donostialdea Integrated Health Organisation, Donostia University Hospital, Clinical Epidemiology Unit, San Sebastián, Spain,Biodonostia Health Research Institute, Clinical Epidemiology, San Sebastián, Spain
| | - R.C. Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - R. Bruffaerts
- Center for Public Health Psychiatry, Universitair Psychiatrisch Centrum, KU Leuven, Leuven, Belgium
| | - E. Vieta
- CIBER Salud Mental (CIBERSAM), Madrid, Spain,Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, Barcelona, Spain
| | - V. Pérez-Solá
- CIBER Salud Mental (CIBERSAM), Madrid, Spain,Universitat Autònoma de Barcelona (UAB), Barcelona, Spain,Parc de Salut Mar PSMAR, Barcelona, Spain
| | - J. Alonso
- Health Services Research Unit, IMIM-Institut Hospital del Mar d’Investigacions Mèdiques, Barcelona, Spain,CIBER Epidemiología y Salud Pública (CIBERESP), Spain,Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain
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9
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Husband G, D"amico A, Hasnie U, Batra N, Cochrun S, Gann A, Li E, Nguyen D, Philip George A, Soto M, Rogers C, Ahmed M, Andrikopoulou E. Machine learning analysis including social determinants of health for predication of mortality following transcatheter aortic valve implantation: a single center experience. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.244] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Social determinants of health (SDOH) are increasingly being recognized as critical, independent prognosticators in cardiovascular disease. Despite this, little is known about the role of SDOH in predicting outcomes following transcatheter aortic valve implantation (TAVI).
Purpose
To assess the value of adding census-derived SDOH in developing machine learning (ML) models for prediction of all-cause mortality in patients following TAVI.
Methods
A total of 398 patients, who underwent TAVI in 2019, were studied. Clinical, demographic, echocardiographic (echo) and census-derived SDOH data were collected. All-cause mortality at 1 year was the endpoint. A general linear ML model was fit with 100 iterations and a 70:30 training-test split. We compared the predictive performance of the model with and without adding SDOH. The SDOH included in the ML model were race (white vs. non-white), % zip code population as female, and zip code average yearly income less than $45,000.
Results
Baseline SDOH, demographic, clinical, and echo data are shown in Table 1. Following univariate and multivariate predictor analysis, the following input data were used for the ML model without the SDOH: post TAVI all-cause hospitalizations, history of outpatient hemodialysis, atrial fibrillation, heart failure with reduced ejection fraction, myocardial infarction, coronary artery disease and beta-blockers. The ML model with SDOH used the same input as well as the SDOH variables. The model with vs. without SDOH had a median AUC of 0.75 vs. 0.73 (p = 0.9957).
Conclusions
Despite not reaching statistical significance, our ML model provides a holistic picture of mortality predictors. Larger studies are needed to more assess the predictive value of SDOH post TAVI. Abstract Figure. Baseline patient characteristics Abstract Figure. ML Model: Area Under Curve
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Affiliation(s)
- G Husband
- UAB Hospital, Birmingham, United States of America
| | - A D"amico
- UAB Hospital, Birmingham, United States of America
| | - U Hasnie
- UAB Hospital, Birmingham, United States of America
| | - N Batra
- UAB Hospital, Birmingham, United States of America
| | - S Cochrun
- UAB Hospital, Birmingham, United States of America
| | - A Gann
- University of South Alabama, Mobile, United States of America
| | - E Li
- UAB Hospital, Birmingham, United States of America
| | - D Nguyen
- The Johns Hopkins Hospital, Baltimore, United States of America
| | | | - M Soto
- UAB Hospital, Birmingham, United States of America
| | - C Rogers
- UAB Hospital, Birmingham, United States of America
| | - M Ahmed
- UAB Hospital, Birmingham, United States of America
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10
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Poblete T, Casanova D, Soto M, Campero A, Mura J. Microsurgical Anatomy of the Anterior Circulation of the Brain Adjusted to the Neurosurgeon's Daily Practice. Brain Sci 2021; 11:brainsci11040519. [PMID: 33921699 PMCID: PMC8073207 DOI: 10.3390/brainsci11040519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/11/2021] [Accepted: 04/17/2021] [Indexed: 11/16/2022] Open
Abstract
The study of cerebrovascular anatomy can be difficult and may take time due to its intrinsic complexity. However, it can also be difficult for the following reasons: the excessive description of neuroanatomy making articles hard to read, the unclear clinical application of what is written, the use of simplified or intricate schematic drawings that are not always appropriate for effective teaching, the poor quality of neuroanatomy dissections and the use of unusual views of figures that are not strictly related to the most frequent neuroimages to be interpreted in daily practice. Because of this, we designed an article that incorporates original and accurate anatomical dissections in an attempt to improve its comprehensibility. Five formalin-fixed adult cadaveric heads, whose vessels were injected with a colored silicone mixture (red for arteries and blue for veins), were dissected and examined under a microscope with magnifications from 3× to 40×. Special emphasis has been placed on correlating topographic anatomy with routine neuroimaging studies from computed tomographic angiography (CTA) and digital subtraction angiography (DSA). The essential surgical anatomy in a neurosurgeon’s daily practice is also described. The cadaveric dissections included in this study contribute to the understanding of the cerebrovascular anatomy necessary for the neurosurgeon’s daily practice.
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Affiliation(s)
- Tomas Poblete
- Department of Anatomy and Legal Medicine, Medical Faculty, University of Chile, Santiago 8380455, Chile; (D.C.); (M.S.)
- Department of Neurosurgery, San Borja Arriarán Hospital, Santiago 8360160, Chile
- Correspondence: ; Tel.: +56-22-574-8673
| | - Daniel Casanova
- Department of Anatomy and Legal Medicine, Medical Faculty, University of Chile, Santiago 8380455, Chile; (D.C.); (M.S.)
- Medical Faculty, University of Valparaiso, San Felipe 2170000, Chile
| | - Miguel Soto
- Department of Anatomy and Legal Medicine, Medical Faculty, University of Chile, Santiago 8380455, Chile; (D.C.); (M.S.)
| | - Alvaro Campero
- Department of Neurosurgery, Padilla Hospital, Tucumán T4000, Argentina;
| | - Jorge Mura
- Department of Neurosurgery, Asenjo Neurosurgical Institute, Santiago 7500691, Chile;
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11
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Arias O, Viña S, Soto M. Co-composting of forest and industrial wastes watered with pig manure. Environ Technol 2021; 42:705-716. [PMID: 31294652 DOI: 10.1080/09593330.2019.1643411] [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: 04/30/2019] [Accepted: 07/05/2019] [Indexed: 06/09/2023]
Abstract
Co-composting of forest-derived wastes (chestnut forest burr, CST; scrubland biomass, SRB; industrial sludge, MDFS, from the Medium Density Fibreboard production process) watered with pig manure (PM) may constitute a feasible management technique for both solid and liquid streams. PM provided water and improved the carbon to nitrogen (C/N) ratio. Four piles of 1.8-2.4 m3 were conformed: A (SRB, with compaction bulk density), B (SRB, without compaction), C (SRB and MDFS at a volumetric ratio of 3:1) and D (CST). Thermophilic temperatures were maintained for 8 (B), 16 (A), 28 (C) and 40 (D) days. Stable compost was obtained after 35 (A, B, C) and 48 (D) days. Hygienization was only complete in piles C and D. N losses were higher in piles A (39.3%) and B (33.6%) in relation to C (17.0%) and D (8.9%) which could be attributed to the characteristics of MDFS and CST. Increasing the matrix size from 340 L to around 2000 L led to a higher intensity of the thermophilic phase. Besides, compaction significantly increased the temperature during composting. PM was added at ratios ranging from 1.8 to 2.5 L/kg dry matter, being favoured by pre-drying of solid wastes.
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Affiliation(s)
- O Arias
- Department of Chemistry, University of A Coruña, Galiza, Spain
| | - S Viña
- Boibel Forestal S.L. Lugar do Pazo de Galegos s/n, Galiza, Spain
| | - M Soto
- Department of Chemistry, University of A Coruña, Galiza, Spain
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12
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Garcia-Velasco N, Irizar A, Urionabarrenetxea E, Scott-Fordsmand JJ, Soto M. Corrigendum to "Selection of an optimal culture medium and the most responsive viability assay to assess AgNPs toxicity with primary cultures of Eisenia fetida coelomocytes" [Ecotoxicology and Environmental Safety 183 (2019) 109545]. Ecotoxicol Environ Saf 2021; 207:111313. [PMID: 32927155 DOI: 10.1016/j.ecoenv.2020.111313] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- N Garcia-Velasco
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, 48080, Bilbao, Basque Country, Spain.
| | - A Irizar
- Department of Bioscience - Soil Fauna Ecology and Ecotoxicology, Vejlsøvej 25. Building M3.14, 8600, Silkeborg, Denmark
| | - E Urionabarrenetxea
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, 48080, Bilbao, Basque Country, Spain
| | - J J Scott-Fordsmand
- Department of Bioscience - Soil Fauna Ecology and Ecotoxicology, Vejlsøvej 25. Building M3.14, 8600, Silkeborg, Denmark
| | - M Soto
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, 48080, Bilbao, Basque Country, Spain
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13
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Takeda C, Guyonnet S, Ousset PJ, Soto M, Vellas B. Toulouse Alzheimer's Clinical Research Center Recovery after the COVID-19 Crisis: Telemedicine an Innovative Solution for Clinical Research during the Coronavirus Pandemic. J Prev Alzheimers Dis 2020; 7:301-304. [PMID: 32920637 PMCID: PMC7244935 DOI: 10.14283/jpad.2020.32] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- C Takeda
- C. Takeda, Gérontopôle, CHU Toulouse, Cité de la Santé, Hôpital La Grave, Place Lange, 31059 Toulouse cedex 9, France, Tel : +33.(0)5.17.77.70.28, Fax +33.(0)5.61.77.70.71, E-mail:
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14
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Sano M, Soto M, Carrillo M, Cummings J, Hendrix S, Mintzer J, Porsteinsson A, Rosenberg P, Schneider L, Touchon J, Aisen P, Vellas B, Lyketsos C. Identifying Better Outcome Measures to Improve Treatment of Agitation in Dementia: A Report from the EU/US/CTAD Task Force. J Prev Alzheimers Dis 2019; 5:98-102. [PMID: 29616702 DOI: 10.14283/jjpad.2018.15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
For the second time in the past 3 years, the EU-US CTAD Task Force addressed challenges related to designing clinical trials for agitation in dementia, which is one of the most disruptive aspects of the condition for both patients and caregivers. Six recommendations emerged from the Task Force meeting: 1 - Operationalizing agitation criteria established by the IPA; 2 - Combining clinician- and caregiver-derived outcomes as primary outcome measures; 3 - Using global ratings to define clinically meaningful effects and power studies; 4 - Improving the accuracy of caregiver reports by better training and education of caregivers; 5 - Employing emerging technologies to collect near real-time behavioral data; and 6 - Utilizing innovative trial designs and increasing the use of biomarkers to maximize the productivity of clinical trials for neuropsychiatric symptoms.
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Affiliation(s)
- M Sano
- Mary Sano, Mount Sinai School of Medicine, Bronx, NY, USA,
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Garcia-Velasco N, Irizar A, Urionabarrenetxea E, Scott-Fordsmand JJ, Soto M. Selection of an optimal culture medium and the most responsive viability assay to assess AgNPs toxicity with primary cultures of Eisenia fetida coelomocytes. Ecotoxicol Environ Saf 2019; 183:109545. [PMID: 31446174 DOI: 10.1016/j.ecoenv.2019.109545] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 03/29/2019] [Revised: 08/01/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Earthworm immune cells (coelomocytes) have become a target system in ecotoxicology due to their sensitivity against a wide range of pollutants, including silver nanoparticles (AgNPs). Presently, in vitro approaches (viability assays in microplate, flow cytometry, cell sorting) with primary cultures of Eisenia fetida coelomocytes have been successfully used to test the toxicity and the dissimilar response of cell subpopulations (amoebocytes and eleocytes) after PVP-PEI coated AgNPs and AgNO3 exposures. In order to obtain reliable data and to accurately assess toxicity with coelomocytes, first an optimal culture medium and the most responsive assay were determined. AgNPs posed a gradual decrease in coelomocytes viability, establishing the LC50 value in RPMI-1640 medium at 6 mg/l and discarding that the observed cytotoxicity was attributable to its coating agent PVP-PEI. Exposure to AgNPs caused selective cytotoxicity in amoebocytes, which correlated with the Ag concentrations measured in sorted amoebocytes and reinforced the idea of dissimilar sensitivities among amoebocytes and eleocytes. Silver nano and ionic forms exerted similar toxicity in coelomocytes. The in vitro approaches with coelomocytes of E. fetida performed in this study have the capacity to predict impairments caused by pollutants at longer exposure levels and thus, provide rapid and valuable information for eco(nano)toxicology.
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Affiliation(s)
- N Garcia-Velasco
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain.
| | - A Irizar
- Department of Bioscience - Soil Fauna Ecology and Ecotoxicology, Vejlsøvej 25. Building M3.14, 8600, Silkeborg, Denmark
| | - E Urionabarrenetxea
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain
| | - J J Scott-Fordsmand
- Department of Bioscience - Soil Fauna Ecology and Ecotoxicology, Vejlsøvej 25. Building M3.14, 8600, Silkeborg, Denmark
| | - M Soto
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain
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Rodríguez-Hidalgo A, Morales JI, Cebrià A, Courtenay LA, Fernández-Marchena JL, García-Argudo G, Marín J, Saladié P, Soto M, Tejero JM, Fullola JM. The Châtelperronian Neanderthals of Cova Foradada (Calafell, Spain) used imperial eagle phalanges for symbolic purposes. Sci Adv 2019; 5:eaax1984. [PMID: 31701003 PMCID: PMC6824858 DOI: 10.1126/sciadv.aax1984] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 09/26/2019] [Indexed: 05/31/2023]
Abstract
Evidence for the symbolic behavior of Neanderthals in the use of personal ornaments is relatively scarce. Among the few ornaments documented, eagle talons, which were presumably used as pendants, are the most frequently recorded. This phenomenon appears concentrated in a specific area of southern Europe during a span of 80 thousand years. Here, we present the analysis of one eagle pedal phalange recovered from the Châtelperronian layer of Foradada Cave (Spain). Our research broadens the known geographical and temporal range of this symbolic behavior, providing the first documentation of its use among the Iberian populations, as well as of its oldest use in the peninsula. The recurrent appearance of large raptor talons throughout the Middle Paleolithic time frame, including their presence among the last Neanderthal populations, raises the question of the survival of some cultural elements of the Middle Paleolithic into the transitional Middle to Upper Paleolithic assemblages and beyond.
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Affiliation(s)
| | - J. I. Morales
- SERP, Departament d’Història i Arqueologia, Universitat de Barcelona, Barcelona, Spain
| | - A. Cebrià
- SERP, Departament d’Història i Arqueologia, Universitat de Barcelona, Barcelona, Spain
| | - L. A. Courtenay
- Àrea de Prehistòria, Universitat Rovira i Virgili (URV), Tarragona, Spain
- Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Tarragona, Spain
- Department of Cartographic and Land Engineering, Higher Polytechnic School of Avila, University of Salamanca, Ávila, Spain
| | | | - G. García-Argudo
- SERP, Departament d’Història i Arqueologia, Universitat de Barcelona, Barcelona, Spain
| | - J. Marín
- Museum National d’Histoire Naturelle, Institut de Paléontologie Humaine, UMR-7194, Paris, France
| | - P. Saladié
- Àrea de Prehistòria, Universitat Rovira i Virgili (URV), Tarragona, Spain
- Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Tarragona, Spain
- Unit Associated to CSIC, Departamento de Paleobiología, Museo Nacional d Ciencias Naturales, Madrid, Spain
| | - M. Soto
- Department of Anthropology and Archeology, University of Calgary, Calgary, Canada
| | - J.-M. Tejero
- SERP, Departament d’Història i Arqueologia, Universitat de Barcelona, Barcelona, Spain
- Centre National de la Recherche Scientifique de France (CNRS), UMR-7041, ArScAn équipe Ethnologie préhistorique, Nanterre, France
| | - J.-M. Fullola
- SERP, Departament d’Història i Arqueologia, Universitat de Barcelona, Barcelona, Spain
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de Kerimel J, Tavassoli N, Lafont C, Soto M, Pedra M, Nourhashemi F, Lagourdette C, Bouchon L, Chaléon A, Sourdet S, Rolland Y, Cesari M, Vellas B. How to Manage Frail Older Adults in the Community? Proposal of a Health Promotion Program Experienced in a City of 16,638 Inhabitants in France. J Frailty Aging 2019; 7:120-126. [PMID: 29741197 DOI: 10.14283/jfa.2017.47] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Health promotion programs could prevent and delay frailty and functional decline. However, in practice, the planning and establishment of such a program is a challenge for health care providers. We report an experimental model of screening and management for frail elderly conducted in Cugnaux, city of 16,638 inhabitants in France, by the Toulouse Gerontopole and the social care service of the Cugnaux City Hall. METHODS A frailty screening self-administered questionnaire (FiND questionnaire) was sent to community-dwelling residents of 70 years old and over of Cugnaux. The completed questionnaires were analyzed and the subjects were classed into three groups: robust, frail, mobility disability, based on their score. Frail subjects and those with mobility disability invited to undergo a frailty assessment in the premises of the town hall realized by a nurse in order to identify the causes of their frailty and propose them a personalized intervention plan (PIP). RESULTS The FiND questionnaire was sent to the residents of Cugnaux of 70 years old and over (n=2,003). After two mailings, 860 (42.9%) completed questionnaires were received. Mean age of the responders was 79.0 ± 6.2 years and 59.6% women (n= 511). According to the questionnaires analysis, 393 (45.7%) were robust, 212 (24.6%) frail, 240 (27.9%) had a mobility disability and 15 (1.7%) could not be classified due to missing data. 589 (68.5%) subjects accepted to be contacted by the Gerontopole nurse. The assessment by the nurse was proposed to frail subjects and those with mobility disability (n=313). Until 31 December 2016, 136 patients have been evaluated. The mean age was 80.1±5.4 and most patients were women (69.9%). The mean ADL score was 5.8±0.5 and the IADL showed a mean score of 6.9±1.7. According to Fried definition of frailty, 76 patients (55.9%) were pre-frail, and 35 (25.7%) frail. Concerning the frailty domains identified, 75 patients (55.1%) showed the alteration of physical performance, 70 (51.5%) thymic disorders and 46 (33.8%) sensory disorders. Preventive interventions proposed in the PIP were mostly physical interventions (86.8%, n=118) followed by cognitive (61.8%, n=84) and nutritional (39.7%, n=54) interventions. DISCUSSION This project shows the feasibility to implement a care model in the community. It permitted a large identification of frail elderly people in the city population, insuring their assessment and clinical follow up to maintain their capacities and referring them to social services.
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Affiliation(s)
- J de Kerimel
- Justine de Kerimel, E-mail address: , Postal address : La Cité de la Santé - Gérontopôle de Toulouse - Équipe Régionale Vieillissement et Prévention de la Dépendance 20 rue du Pont Saint Pierre - TSA 60033 - 31059 Toulouse Cedex 9 - France, Phone number: 05 61 77 70 12 Fax number: 05 61 77 64 75
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Blanco-Rayón E, Soto M, Izagirre U, Marigómez I. Enhanced discrimination of basophilic cells on mussel digestive gland tissue sections by means of toluidine-eosin staining. J Invertebr Pathol 2019; 161:29-39. [PMID: 30615864 DOI: 10.1016/j.jip.2019.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/28/2018] [Accepted: 01/03/2019] [Indexed: 11/16/2022]
Abstract
Changes in the cell type composition of the digestive gland epithelium constitute a common and recognized biological response to stress in mussels. Usually, these changes are identified as alterations in the relative proportion of basophilic cells, determined in tissue sections stained with hematoxylin-eosin (H&E) and measured in terms of volume density of basophilic cells (VvBAS) after stereological quantification. However, the identification and discrimination of basophilic cells may be a difficult issue, even for a trained operator, especially when, in circumstances of environmental stress, basophilic cells lose their basophilia and the perinuclear area of digestive cells gains basophilia. Thus, the present study was aimed at exploring the best available practices (BAPs) to identify and discriminate basophilic cells on tissue sections of mussel digestive gland. In a first step, a thorough screening of potentially suitable staining methods was carried out; the final selection included several trichrome staining methods and some of their variants, as well as toluidine-based stains. Next, the sample processing (fixation/dehydration steps) was optimized. Toluidine-eosin (T&E) staining after fixation in 4% formaldehyde at 4 °C for 24 h was considered the BAP to identify and discriminate basophilic cells in the digestive gland of mussels. Using the mussel Mytilus galloprovincialis as a target organism, this approach was successfully applied to quantify VvBAS values after automated image analysis and compared with the conventional H&E staining in different field and laboratory tests. It is worth noting that VvBAS values were always higher after T&E staining than after H&E staining, apparently because discrimination of basophilic cells was enhanced. Thus, until more data are available, any comparison with VvBAS values obtained in previous studies using H&E staining must be done cautiously. Finally, the T&E staining was successfully used to discriminate basophilic cells in tissue sections of other marine molluscs of ecotoxicological interest, including Mytilus edulis, Mytilus trossulus, Crassostrea gigas and Littorina littorea.
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Affiliation(s)
- E Blanco-Rayón
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station; PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain
| | - M Soto
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station; PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain
| | - U Izagirre
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station; PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain
| | - I Marigómez
- CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology (ZTF/FCT) & Research Centre of Experimental Marine Biology and Biotechnology (Plentzia Marine Station; PiE-UPV/EHU), University of the Basque Country, Bilbo 48080, Basque Country, Spain.
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Araya C, Silva J, Soto M, Salcedo A, Donoso V, Arcos S. Foramen Venoso Órbito Cavernoso: Foramen de Warwick. INT J MORPHOL 2018. [DOI: 10.4067/s0717-95022018000401480] [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: 11/17/2022]
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Silva J, Araya C, Soto M, González S, Salcedo A, Bustos P, Ilufi I, Ormazábal J, Sanhueza J, Pino A, Plaza A, Arcos S. Relación entre el Patrón Dactiloscópico Epidérmico y Dérmico. INT J MORPHOL 2018. [DOI: 10.4067/s0717-95022018000401290] [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: 11/17/2022]
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Yousefzadeh A, Stromatias E, Soto M, Serrano-Gotarredona T, Linares-Barranco B. On Practical Issues for Stochastic STDP Hardware With 1-bit Synaptic Weights. Front Neurosci 2018; 12:665. [PMID: 30374283 PMCID: PMC6196279 DOI: 10.3389/fnins.2018.00665] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 12/05/2017] [Accepted: 09/04/2018] [Indexed: 11/21/2022] Open
Abstract
In computational neuroscience, synaptic plasticity learning rules are typically studied using the full 64-bit floating point precision computers provide. However, for dedicated hardware implementations, the precision used not only penalizes directly the required memory resources, but also the computing, communication, and energy resources. When it comes to hardware engineering, a key question is always to find the minimum number of necessary bits to keep the neurocomputational system working satisfactorily. Here we present some techniques and results obtained when limiting synaptic weights to 1-bit precision, applied to a Spike-Timing-Dependent-Plasticity (STDP) learning rule in Spiking Neural Networks (SNN). We first illustrate the 1-bit synapses STDP operation by replicating a classical biological experiment on visual orientation tuning, using a simple four neuron setup. After this, we apply 1-bit STDP learning to the hidden feature extraction layer of a 2-layer system, where for the second (and output) layer we use already reported SNN classifiers. The systems are tested on two spiking datasets: a Dynamic Vision Sensor (DVS) recorded poker card symbols dataset and a Poisson-distributed spike representation MNIST dataset version. Tests are performed using the in-house MegaSim event-driven behavioral simulator and by implementing the systems on FPGA (Field Programmable Gate Array) hardware.
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Affiliation(s)
- Amirreza Yousefzadeh
- Instituto de Microelectrónica de Sevilla (IMSE-CNM), CSIC and Universidad de Sevilla, Sevilla, Spain
| | - Evangelos Stromatias
- Instituto de Microelectrónica de Sevilla (IMSE-CNM), CSIC and Universidad de Sevilla, Sevilla, Spain
| | - Miguel Soto
- Instituto de Microelectrónica de Sevilla (IMSE-CNM), CSIC and Universidad de Sevilla, Sevilla, Spain
| | | | - Bernabé Linares-Barranco
- Instituto de Microelectrónica de Sevilla (IMSE-CNM), CSIC and Universidad de Sevilla, Sevilla, Spain
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de Mauléon A, Soto M, Kiyasova V, Delrieu J, Guignot I, Galtier S, Lilamand M, Cantet C, Lala F, Sastre N, Andrieu S, Pueyo M, Ousset PJ, Vellas B. The ROSAS Cohort: A Prospective, Longitudinal Study of Biomarkers for Alzheimer's Disease. Strategy, Methods and Initial Results. J Prev Alzheimers Dis 2018; 4:183-193. [PMID: 29182709 DOI: 10.14283/jpad.2017.8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The aims of the Research Of biomarkers in Alzheimer's diseaSe (ROSAS) study were to determine the biofluid and imaging biomarkers permitting an early diagnosis of Alzheimer's disease and better characterisation of cognitive and behavioural course of the pathology. This paper outlines the overall strategy, methodology of the study, baseline characteristics of the population and first longitudinal results from the ROSAS cohort. METHODS Longitudinal prospective monocentric observational study performed at the Alzheimer's disease Research centre in Toulouse. A total of 387 patients were studied and analyzed in 3 groups: 184 patients with dementia of Alzheimer's type, 96 patients with memory disorders without dementia (Mild Cognitive Impairment) and 107 patients without abnormal memory tests (control group), and were followed up during 4 years. Patient's sociodemographic characteristics, risk factors, medical conditions, previous and current medications, neuropsychological assessment and overall cognitive status were recorded. Blood and urine samples were collected at every year, Magnetic Resonance Imaging were performed at inclusion, after one year of follow-up and at the end of the study. RESULTS At baseline, three different groups of the cohort differed interestingly in age, level of education, and in percentage of ApoEε4 carriers whereas the history of cardiovascular and endocrine pathologies were similar among the groups. During the follow-up period (3-4 years) 42 mild cognitive impairment patients (43.8%) progressed to dementia, 7 controls progressed into mild cognitive impairment and 1 patient in the control group converted from mild cognitive impairment group to dementia of Alzheimer's type group. During the first year of follow up, the incidence of progression from mild cognitive impairment to dementia of Alzheimer's type was 12.7 per 100, during the second year 33.9 per 100 and 46.7 per 100 for the third year. CONCLUSION This paper presents the baseline characteristics of the unique French prospective monocenter study in which the natural course of dementia of Alzheimer's type was evaluated. Future analysis of blood and urine samples collection from the ROSAS study will permit to identify possible biofluid biomarkers predicting the early stages of the dementia of Alzheimer's type and risk of progression from Mild Cognitive Impairment to Alzheimer's disease.
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Affiliation(s)
- A de Mauléon
- Adelaide de Mauleon, MD, Gérontopôle de Toulouse, Department of Geriatric Medicine, Toulouse University Hospital, 224, avenue de Casselardit, 31059 TOULOUSE Cedex 9, France; Phone: 33.5.61.77.64.26, Fax: 33.5.61.77.64.78; E-mail:
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Vázquez MA, de la Varga D, Plana R, Soto M. Nitrogen losses and chemical parameters during co-composting of solid wastes and liquid pig manure. Environ Technol 2018; 39:2017-2029. [PMID: 28661214 DOI: 10.1080/09593330.2017.1347717] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The aim of this research was to study nitrogen losses during the treatment of the liquid fraction (LF) of pig manure by co-composting and to establish the best conditions for compost production with higher nitrogen and low heavy metal contents. Windrows were constituted with the solid fraction (SF) of pig manure, different organic waste (SF of pig manure, sawdust and grape bagasse) as co-substrate and Populus spp. wood chips as bulking material and watered intensely with the LF. Results show that nitrogen losses ranged from 30% to 66% of initial nitrogen and were mainly governed by substrate to bulking mass ratio and liquid fraction to substrate (LF/S) ratio, and only secondarily by operational parameters. Nitrogen losses decreased from 55-65% at low LF/S ratios (1.7-1.9 m3/t total solids (TS)) to 30-39% at high LF/S ratios (4.4-4.7 m3/t TS). Therefore, integrating the LF in the composting process at high LF/S ratios favoured nitrogen recovery and conservation. Nitrogen in the fine fraction (ranging from 27% to 48% of initial nitrogen) was governed by operational parameters, namely pH and temperature. Final compost showed low content in most heavy metals, but Zn was higher than the limits for compost use in agriculture. Zn content in the obtained compost varied from 1863 to 3269 mg/kg dm, depending on several factors. The options for obtaining better quality composts from the LF of pig manure are selecting co-substrates with low heavy metal content and using them instead of the SF of pig manure.
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Affiliation(s)
- M A Vázquez
- a Department of Chemistry , University of A Coruña , A Coruña , Spain
| | - D de la Varga
- a Department of Chemistry , University of A Coruña , A Coruña , Spain
| | - R Plana
- b Organic Wastes Management Consultancy , Vigo , Spain
| | - M Soto
- a Department of Chemistry , University of A Coruña , A Coruña , Spain
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Soto M, Vajtai R, Ajayan PM, Barrera EV. Carbon nanotube conditioning part 1-effect of interwall interaction on the electronic band gap of double-walled carbon nanotubes. Nanotechnology 2018; 29:045701. [PMID: 29199975 DOI: 10.1088/1361-6528/aa9f05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ab initio density functional theory simulations were used to calculate the electronic structure and the total energy of double-walled carbon nanotubes (DWCNTs). The relaxed configurations studied were uncapped, infinitely-long zigzag@zigzag double-walled carbon nanotubes. The lowest energy configuration was found to correspond to an interwall distance of 0.35 nm, except for the configurations with inner tube chiral indices (5,0), (6,0) and (7,0). The largest binding energies were found to correspond to a 0.35 nm interwall distance for all the DWCNT configurations studied, and increasing with DWCNT average diameter. In terms of the effect of the interwall interaction on the electronic band gap of DWCNTs, four regions of band gap were obtained which were termed: zero band gap, narrow band gap, small band gap, and medium band gap regions. These regions offer the possibility to first tune the electronic band gap to a region with a desired range, and further tune that choice within the region itself by varying the interwall distance. It was also found that zigzag@zigzag DWCNTs with outer tube leading chiral index n = 3k + 1 or n = 3k + 2 (k being an integer) follow, as a general trend, an inversely proportional relation of the electronic band gap with respect to the average diameter.
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Affiliation(s)
- M Soto
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, United States of America
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Garcia-Velasco N, Peña-Cearra A, Bilbao E, Zaldibar B, Soto M. Integrative assessment of the effects produced by Ag nanoparticles at different levels of biological complexity in Eisenia fetida maintained in two standard soils (OECD and LUFA 2.3). Chemosphere 2017; 181:747-758. [PMID: 28478235 DOI: 10.1016/j.chemosphere.2017.04.143] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 02/20/2017] [Revised: 04/21/2017] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
There is a potential risk to increase the release of silver nanoparticles (Ag NPs) into the environment: For instance. in soils receiving sludge models estimate 0.007 mg Ag NPs kg-1 that will annually increase due to sludge or sludge incineration residues land-disposal. Thus, the concern about the hazards of nanosilver to soils and soil invertebrates is growing. Studies performed up to now have been focused in traditional endpoints, used limit range concentrations and employed different soil types that differ in physico-chemical characteristics. Presently, effects of Ag NPs have been measured at different levels of biological complexity in Eisenia fetida, exposed for 3 and 14 d to high but sublethal (50 mg Ag NPs kg-1) and close to modeled environmental concentrations (0.05 mg Ag NPs kg-1). Since characteristics of the exposure matrix may limit the response of the organisms to these concentrations, experiments were carried out in OECD and LUFA soils, the most used standard soils. High concentrations of Ag NPs increased catalase activity and DNA damage in OECD soils after 14 d while in LUFA 2.3 soils produced earlier effects (weight loss, decrease in cell viability and increase in catalase activity at day 3). At day 14, LUFA 2.3 (low clay and organic matter-OM-) could have provoked starvation of earthworms, masking Ag NPs toxicity. The concentration close to modeled environmental concentrations produced effects uniquely in LUFA 2.3 soil. Accurate physico-chemical characteristics of the standard soils are crucial to assess the toxicity exerted by Ag NPs in E. fetida since low clay and OM contents can be considered toxicity enhancers.
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Affiliation(s)
- N Garcia-Velasco
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain
| | - A Peña-Cearra
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain
| | - E Bilbao
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain
| | - B Zaldibar
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain
| | - M Soto
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080, Bilbao, Basque Country, Spain.
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Fernandez M, Soto M, Torres M, Monsalve R, Ardiles J, Moreno V, Hirsch M, Quininir L, Diaz A, Neira V, Miranda R. P1672Effect of magnetic resonance imaging in non-compatible pacemakers. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1672] [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: 11/14/2022] Open
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Jimeno-Romero A, Izagirre U, Gilliland D, Warley A, Cajaraville MP, Marigómez I, Soto M. Lysosomal responses to different gold forms (nanoparticles, aqueous, bulk) in mussel digestive cells: a trade-off between the toxicity of the capping agent and form, size and exposure concentration. Nanotoxicology 2017; 11:658-670. [DOI: 10.1080/17435390.2017.1342012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- A. Jimeno-Romero
- Department Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), CBET Research Group, University of the Basque Country, Leioa, Spain
| | - U. Izagirre
- Department Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), CBET Research Group, University of the Basque Country, Leioa, Spain
| | - D. Gilliland
- European Commission – Joint Research Centre, Institute of Health and Consumer Protection, NSB Unit, Ispra, Italy
| | - A. Warley
- Centre for Ultrastructural Imaging, King’s College London, London, UK
| | - M. P. Cajaraville
- Department Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), CBET Research Group, University of the Basque Country, Leioa, Spain
| | - I. Marigómez
- Department Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), CBET Research Group, University of the Basque Country, Leioa, Spain
| | - M. Soto
- Department Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), CBET Research Group, University of the Basque Country, Leioa, Spain
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Stromatias E, Soto M, Serrano-Gotarredona T, Linares-Barranco B. An Event-Driven Classifier for Spiking Neural Networks Fed with Synthetic or Dynamic Vision Sensor Data. Front Neurosci 2017; 11:350. [PMID: 28701911 PMCID: PMC5487436 DOI: 10.3389/fnins.2017.00350] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 03/24/2017] [Accepted: 06/06/2017] [Indexed: 11/25/2022] Open
Abstract
This paper introduces a novel methodology for training an event-driven classifier within a Spiking Neural Network (SNN) System capable of yielding good classification results when using both synthetic input data and real data captured from Dynamic Vision Sensor (DVS) chips. The proposed supervised method uses the spiking activity provided by an arbitrary topology of prior SNN layers to build histograms and train the classifier in the frame domain using the stochastic gradient descent algorithm. In addition, this approach can cope with leaky integrate-and-fire neuron models within the SNN, a desirable feature for real-world SNN applications, where neural activation must fade away after some time in the absence of inputs. Consequently, this way of building histograms captures the dynamics of spikes immediately before the classifier. We tested our method on the MNIST data set using different synthetic encodings and real DVS sensory data sets such as N-MNIST, MNIST-DVS, and Poker-DVS using the same network topology and feature maps. We demonstrate the effectiveness of our approach by achieving the highest classification accuracy reported on the N-MNIST (97.77%) and Poker-DVS (100%) real DVS data sets to date with a spiking convolutional network. Moreover, by using the proposed method we were able to retrain the output layer of a previously reported spiking neural network and increase its performance by 2%, suggesting that the proposed classifier can be used as the output layer in works where features are extracted using unsupervised spike-based learning methods. In addition, we also analyze SNN performance figures such as total event activity and network latencies, which are relevant for eventual hardware implementations. In summary, the paper aggregates unsupervised-trained SNNs with a supervised-trained SNN classifier, combining and applying them to heterogeneous sets of benchmarks, both synthetic and from real DVS chips.
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Affiliation(s)
| | | | | | - Bernabé Linares-Barranco
- Instituto de Microelectrónica de Sevilla (CNM), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de SevillaSevilla, Spain
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Vázquez MA, Soto M. The efficiency of home composting programmes and compost quality. Waste Manag 2017; 64:39-50. [PMID: 28325704 DOI: 10.1016/j.wasman.2017.03.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 08/14/2016] [Revised: 03/09/2017] [Accepted: 03/12/2017] [Indexed: 06/06/2023]
Abstract
The efficiency of home composting programmes and the quality of the produced compost was evaluated in eight rural areas carrying out home composting programmes (up to 880 composting bins) for all household biowaste including meat and fish leftovers. Efficiency was analysed in terms of reduction of organic waste collected by the municipal services. An efficiency of 77% on average was obtained, corresponding to a composting rate of 126kg/person·year of biowaste (or 380kg/composter·year). Compost quality was determined for a total of 90 composting bins. The operation of composting bins by users was successful, as indicated by a low C/N ratio (10-15), low inappropriate materials (or physical contaminant materials, mean of 0.27±0.44% dry matter), low heavy metal content (94% of samples met required standards for agricultural use) and high nutrient content (2.1% N, 0.6% P, 2.5% K, 0.7% Mg and 3.7% Ca on average, dry matter). The high moisture (above 70% in 48% of the samples) did not compromise the compost quality. Results of this study show that home composting of household organic waste including meat and fish leftovers is a feasible practice. Home composting helps individuals and families to reduce the amount of household waste at the same time gaining a fertiliser material (compost) of excellent quality for gardens or vegetable plots.
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Affiliation(s)
- M A Vázquez
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Galiza, Spain
| | - M Soto
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Galiza, Spain.
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Arias O, Viña S, Uzal M, Soto M. Composting of pig manure and forest green waste amended with industrial sludge. Sci Total Environ 2017; 586:1228-1236. [PMID: 28233616 DOI: 10.1016/j.scitotenv.2017.02.118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 05/05/2023]
Abstract
The aim of this research was to study the composting of chestnut forest green waste (FGW) from short rotation chestnut stands amended with sludge resulting from the manufacture of Medium Density Fibreboard (MDFS) and pig manure (PM). Both FGW and MDFS presented low biodegradation potential but different characteristics in granulometry and bulk density that make its mixture of interest to achieve high composting temperatures. PM decreased the C/N ratio of the mixture and increased its moisture content (MC). Three mixtures of MDFS:FGW at volume ratios of 1:1.3 (M2), 1:2.4 (M3) and 0:1 (M4) were composted after increasing its MC to about 70% with PM. A control with food waste (OFW) and FGW (1:2.4 in volume) (M1) was run in parallel. Watering ratios reached 0.25 (M1), 1.08 (M2) 1.56 (M3) and 4.35 (M4) L PM/kg TS of added solids wastes. Treatments M2 and M3 reached a thermophilic phase shorter than M1, whilst M4 remained in the mesophilic range. After 48days of composting, temperature gradients in respect to ambient temperature were reduced, but the mineralization process continued for around 8months. Final reduction in total organic carbon reached 35-56%, depending mainly on the content in MDFS. MDFS addition to composting matrices largely reduced nitrogen losses, which range from 22% (M2) to 37% (M3) and 53% (M4). Final products had high nutrient content, low electrical conductivity and low heavy metal content which make it a valuable product for soil fertilization, right to amend in the chestnut forests and as a pillar of their sustainable management.
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Affiliation(s)
- O Arias
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain.
| | - S Viña
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain.
| | - M Uzal
- Boibel Forestal S.L. Lugar do Pazo de Galegos s/n. E-15.868 Frades, A Coruña, Galiza, Spain.
| | - M Soto
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain.
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Kleinridders A, Ferris HA, Reyzer ML, Rath M, Soto M, Spraggins J, Caprioli RM, Kahn CR. Regional nrain glucose metabolism determined by imaging mass spectrometry. DIABETOL STOFFWECHS 2017. [DOI: 10.1055/s-0037-1601726] [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: 10/19/2022]
Affiliation(s)
- A Kleinridders
- Joslin Diabetes Center, Harvard Medical School, Department of Integrative Physiology and Metabolism, Boston, United States
| | - HA Ferris
- Joslin Diabetes Center, Harvard Medical School, Department of Integrative Physiology and Metabolism, Boston, United States
| | - ML Reyzer
- Vanderbilt University, Mass Spectrometry Research Center, Nashville, United States
| | - M Rath
- Deutsches Institut für Ernährungsforschung (DIfE), Zentrale Regulation des Stoffwechsels, Nuthetal, Germany
| | - M Soto
- Joslin Diabetes Center, Harvard Medical School, Department of Integrative Physiology and Metabolism, Boston, United States
| | - J Spraggins
- Vanderbilt University, Mass Spectrometry Research Center, Nashville, United States
| | - RM Caprioli
- Vanderbilt University, Mass Spectrometry Research Center, Nashville, United States
| | - CR Kahn
- Joslin Diabetes Center, Harvard Medical School, Department of Integrative Physiology and Metabolism, Boston, United States
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Gonzalo OG, Ruiz I, Soto M. Integrating pretreatment and denitrification in constructed wetland systems. Sci Total Environ 2017; 584-585:1300-1309. [PMID: 28189310 DOI: 10.1016/j.scitotenv.2017.01.217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/04/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 06/06/2023]
Abstract
The aim of this work was to study the operational characteristics and the efficiency of a compact constructed wetland system for municipal wastewater treatment that integrates denitrification in the pre-treatment unit. The proposed system was simulated by two units in series with effluent recirculation, the first one being an anoxic digester, conceived as a hydrolytic up flow sludge bed for solids hydrolysis and denitrification, and the second one a sand column that simulated the operation of a vertical flow constructed wetland. The hybrid system consisted of two small columns of 4 and 10.2cm in diameter (anoxic digester and vertical flow unit, respectively). The unplanted system was operated successively with synthetic and real municipal wastewater over a period of 136days. Hydraulic loading rate ranged from 212 to 318mm/day and surface loading rate from 122 to 145g/m2·day of chemical oxygen demand and 10-15g/m2·day of total nitrogen for the overall system. The overall system reached removals of 91% to 99% for total suspended solids, chemical oxygen demand and biochemical oxygen demand whilst total nitrogen removal ranged from 43% to 61%. In addition to suspended solids removal (up to 78%), the anoxic digester provided high denitrification rates (3-12gN/m2·day) whilst the vertical flow unit provided high nitrification rates (8-15gN/m2·day). Organic matter was mainly removed in the anoxic digester (63-82% chemical oxygen demand) and used for denitrification. Final effluent concentration was lower for ammonia (7.4±2.4mgN/L on average) than for nitrate (19.8±4.4mgN/L), denitrification appearing as the limiting step in nitrogen removal in the system. CH4 or N2O emissions were not detected in any of the units of the system indicating very low greenhouse gas emissions.
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Affiliation(s)
- O G Gonzalo
- Department of Physical Chemistry and Chemical Engineering l, University of A Coruña, Rúa da Fraga 10, 15008 A Coruña, Spain.
| | - I Ruiz
- Department of Physical Chemistry and Chemical Engineering l, University of A Coruña, Rúa da Fraga 10, 15008 A Coruña, Spain.
| | - M Soto
- Department of Physical Chemistry and Chemical Engineering l, University of A Coruña, Rúa da Fraga 10, 15008 A Coruña, Spain.
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Alberdi-Paramo I, Montero G, Niell L, Baena R, Tenorio M, Carabias A, Fuentes D, Jurado A, Perez C, Carrillo R, Fraga A, Fernandez De Aspe M, Soto M, Gonzalez B. Selective serotonine reuptake inhibitors or dual antidepressants and syndrome of inapropriate antidiuretic hormone secretion: A systematic search. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
IntroductionDepression is a disease with high prevalence all over the world. Selective serotonine reuptake inhibitors (SSRIs) and dual antidepressants (DA) are worldwide used to treat the different types of depressive episodes. Between the adverse events of these compounds, an unusual but potentially severe side effect is the syndrome of inapropriate antidiuretic hormone secretion (SIADH).Results and discussionSeveral cases published, and an amount of cases series have documented the association of SIADH to the use of SSRIs and DA. All SSRIs and DA are at risk of producing SIADH (fluoxetine, paroxetine, fluvoxamine, sertraline, citalopram, escitalopram, venlafaxine and duloxetine). Old age has been found as a risk factor for developing SIADH. There are not enough data to conclude that other risk factors can play a role in the development of this adverse event. Treatment should include the immediate withdrawal of the antidepressant. The introduction of other antidepressants is controversial, as SIADH has been related with all antidepressive treatments; but the risk of relapse into a depressive episode must be considered also. Between symptomatic treatments, the control of water intake and the use of low doses of loop diuretics can be recommended. Severe cases can be treated with higher doses of loop diuretics and saline hypertonic solution.ConclusionsSIADH has been related with SSRIs and DA antidepressants and it is an infrequent but severe adverse event. Its risk must be considered when prescribing treatment with them. If this adverse event is produced, the substitution of the antidepressant should be done.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Jimeno-Romero A, Bilbao E, Izagirre U, Cajaraville MP, Marigómez I, Soto M. Digestive cell lysosomes as main targets for Ag accumulation and toxicity in marine mussels, Mytilus galloprovincialis, exposed to maltose-stabilised Ag nanoparticles of different sizes. Nanotoxicology 2017; 11:168-183. [DOI: 10.1080/17435390.2017.1279358] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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)
- A. Jimeno-Romero
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Basque Country, Spain
| | - E. Bilbao
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Basque Country, Spain
| | - U. Izagirre
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Basque Country, Spain
| | - M. P. Cajaraville
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Basque Country, Spain
| | - I. Marigómez
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Basque Country, Spain
| | - M. Soto
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Basque Country, Spain
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Pascual A, de la Varga D, Arias CA, Van Oirschot D, Kilian R, Álvarez JA, Soto M. Hydrolytic anaerobic reactor and aerated constructed wetland systems for municipal wastewater treatment - HIGHWET project. Environ Technol 2017; 38:209-219. [PMID: 27241268 DOI: 10.1080/09593330.2016.1188995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The HIGHWET project combines the hydrolytic up-flow sludge bed (HUSB) anaerobic digester and constructed wetlands (CWs) with forced aeration for decreasing the footprint and improving effluent quality. The HIGHWET plant in A Coruña (NW of Spain) treating municipal wastewater consists of a HUSB and four parallel subsurface horizontal flow (HF) CWs. HF1, HF2 and HF3 units are fitted with forced aeration, while the control HF4 is not aerated. All the HF units are provided with effluent recirculation, but different heights of gravel bed (0.8 m in HF1 and HF2, and 0.5 m in HF3 and HF4) are implemented. Besides, a tobermorite-enriched material was added in the HF2 unit in order to improve phosphorus removal. The HUSB 76-89% of total suspended solids (TSS) and about 40% of chemical oxygen demand (COD) and biological oxygen demand (BOD). Aerated HF units reached above 96% of TSS, COD and BOD at a surface loading rate of 29-47 g BOD5/m2·d. An aeration regime ranging from 5 h on/3 h off to 3 h on/5 h off was found to be adequate to optimize nitrogen removal, which ranged from 53% to 81%. Average removal rates of 3.4 ± 0.4 g total nitrogen (TN)/m2·d and 12.8 ± 3.7 g TN/m3·d were found in the aerated units, being 5.5 and 4.1 times higher than those of the non-aerated system. The tobermorite-enriched HF2 unit showed a distinct higher phosphate (60-67%) and total phosphorus (54%) removal.
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Affiliation(s)
- A Pascual
- a Department of Physical Chemistry and Chemical Engineering I , University of A Coruña , A Coruña , Galiza , Spain
- b AIMEN , Porriño - Pontevedra , Spain
| | - D de la Varga
- c Sedaqua (Spin-off from University of A Coruña) , O Porriño, Pontevedra , Spain
| | - C A Arias
- d Department of Bioscience , Aarhus University , Aarhus , Denmark
| | | | - R Kilian
- f Kilian Water , Bryrup , Denmark
| | | | - M Soto
- a Department of Physical Chemistry and Chemical Engineering I , University of A Coruña , A Coruña , Galiza , Spain
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de Abechuco EL, Hartmann N, Soto M, Díez G. Assessing the variability of telomere length measures by means of Telomeric Restriction Fragments (TRF) in different tissues of cod Gadus morhua. Gene Reports 2016. [DOI: 10.1016/j.genrep.2016.09.009] [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: 12/20/2022]
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Martins VT, Duarte MC, Lage DP, Costa LE, Carvalho AMRS, Mendes TAO, Roatt BM, Menezes-Souza D, Soto M, Coelho EAF. A recombinant chimeric protein composed of human and mice-specific CD4+and CD8+T-cell epitopes protects against visceral leishmaniasis. Parasite Immunol 2016; 39. [DOI: 10.1111/pim.12359] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/30/2016] [Indexed: 12/28/2022]
Affiliation(s)
- V. T. Martins
- Departamento de Bioquímica e Imunologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - M. C. Duarte
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - D. P. Lage
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - L. E. Costa
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - A. M. R. S. Carvalho
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - T. A. O. Mendes
- Departamento de Bioquímica e Imunologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - B. M. Roatt
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - D. Menezes-Souza
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - M. Soto
- Departamento de Biología Molecular; Centro de Biología Molecular Severo Ochoa; CSIC-UAM; Universidad Autónoma de Madrid; Madrid Spain
| | - E. A. F. Coelho
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
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Torrijos V, Gonzalo OG, Trueba-Santiso A, Ruiz I, Soto M. Effect of by-pass and effluent recirculation on nitrogen removal in hybrid constructed wetlands for domestic and industrial wastewater treatment. Water Res 2016; 103:92-100. [PMID: 27441816 DOI: 10.1016/j.watres.2016.07.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [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: 04/30/2016] [Revised: 07/09/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
Hybrid constructed wetlands (CWs) including subsurface horizontal flow (HF) and vertical flow (VF) steps look for effective nitrification and denitrification through the combination of anaerobic/anoxic and aerobic conditions. Several CW configurations including several configurations of single pass systems (HF + HF, VF + VF, VF + HF), the Bp(VF + HF) arrangement (with feeding by-pass) and the R(HF + VF) system (with effluent recirculation) were tested treating synthetic domestic wastewater. Two HF/VF area ratios (AR) were tested for the VF + HF and Bp(VF + HF) systems. In addition, a R(VF + VF) system was tested for the treatment of a high strength industrial wastewater. The percentage removal of TSS, COD and BOD5 was usually higher than 95% in all systems. The single pass systems showed TN removal below the threshold of 50% and low removal rates (0.6-1.2 g TN/m(2) d), except the VF + VF system which reached 63% and 3.5 g TN/m(2) d removal but only at high loading rates. Bp(VF + HF) systems required by-pass ratios of 40-50% and increased TN removal rates to approximately 50-60% in a sustainable manner. Removal rates depended on the AR value, increasing from 1.6 (AR 2.0) to 5.2 g TN/m(2) d (AR 0.5), both working with synthetic domestic wastewater. On real domestic wastewater the Bp (VF + HF) (AR 0.5 and 30% by-pass) reached 2.5 g TN/m(2) d removal rate. Effluent recirculation significantly improved the TN removal efficiency and rate. The R(HF + VF) system showed stable TN removals of approximately 80% at loading rates ranging from 2 to 8 g TN/m(2) d. High TN removal rates (up to 73% TN and 8.4 g TN/m(2) d) were also obtained for the R(VF + VF) system treating industrial wastewater.
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Affiliation(s)
- V Torrijos
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain
| | - O G Gonzalo
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain
| | - A Trueba-Santiso
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain
| | - I Ruiz
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain
| | - M Soto
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga 10, A Coruña 15008, Galiza, Spain.
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Soto M, Campanario R, Saiz R, Juárez A. [Complete response to tyrosine kinase inhibitors in metastatic renal cancer. Report of four cases]. ARCH ESP UROL 2016; 69:440-443. [PMID: 27617555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVSE To describe the complete responses in our patients with metastatic renal cancer treated with tyrosine kinase inhibitors. MATERIAL AND METHODS Between June 2007 and December 2014 we treated in our department 43 patients with metastatic renal cancer with antiangiogenic drugs. RESULTS 9.3% (4/43) of the patients treated with antiangiogenic drugs obtained complete response according to RECIST 1.1 criteria. In 3 of the 4 patients, complete response was obtained during the first-line treatment with sunitinib at doses of 50 mgr/day in a 4/2 scheme and the remaining patient obtained it with second line axitinib at doses of 10 mgr/day. CONCLUSIONS Tyrosine kinase inhibitors can induce complete responses in patients with metastatic renal cancer. Discontinuation of treatment with tyrosine kinase inhibitors after a complete response may be an option.
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Affiliation(s)
- M Soto
- Hospital de Jerez de La Frontera. Jerez de La Frontera. Cádiz. España
| | - R Campanario
- Hospital de Jerez de La Frontera. Jerez de La Frontera. Cádiz. España
| | - R Saiz
- Hospital de Jerez de La Frontera. Jerez de La Frontera. Cádiz. España
| | - A Juárez
- Hospital de Jerez de La Frontera. Jerez de La Frontera. Cádiz. España
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Jimeno-Romero A, Oron M, Cajaraville MP, Soto M, Marigómez I. Nanoparticle size and combined toxicity of TiO2 and DSLS (surfactant) contribute to lysosomal responses in digestive cells of mussels exposed to TiO2 nanoparticles. Nanotoxicology 2016; 10:1168-76. [PMID: 27241615 DOI: 10.1080/17435390.2016.1196250] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of this investigation was to understand the bioaccumulation, cell and tissue distribution and biological effects of disodium laureth sulfosuccinate (DSLS)-stabilised TiO2 nanoparticles (NPs) in marine mussels, Mytilus galloprovincialis. Mussels were exposed in vivo to 0.1, 1 and 10 mg Ti/L either as TiO2 NPs (60 and 180 nm) or bulk TiO2, as well as to DSLS alone. A significant Ti accumulation was observed in mussels exposed to TiO2 NPs, which were localised in endosomes, lysosomes and residual bodies of digestive cells, and in the lumen of digestive tubules, as demonstrated by ultrastructural observations and electron probe X-ray microanalysis. TiO2 NPs of 60 nm were internalised within digestive cell lysosomes to a higher extent than TiO2 NPs of 180 nm, as confirmed by the quantification of black silver deposits after autometallography. The latter were localised mainly forming large aggregates in the lumen of the gut. Consequently, lysosomal membrane stability (LMS) was significantly reduced upon exposure to both TiO2 NPs although more markedly after exposure to TiO2-60 NPs. Exposure to bulk TiO2 and to DSLS also affected the stability of the lysosomal membrane. Thus, effects on the lysosomal membrane depended on the nanoparticle size and on the combined biological effects of TiO2 and DSLS.
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Affiliation(s)
- A Jimeno-Romero
- a CBET Research Group, Department of Zoology and Animal Cell Biology , Faculty of Science and Technology, University of the Basque Country UPV/EHU , Basque Country , Spain .,b Department of Zoology and Animal Cell Biology , Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU , Basque Country , Spain , and
| | - M Oron
- c The Laboratory for Biochemistry and Biotechnology of the Skin , The Dead Sea and Ahava Science Center, AHAVA-Dead Sea Laboratories, M.P. Dead Sea , Israel
| | - M P Cajaraville
- a CBET Research Group, Department of Zoology and Animal Cell Biology , Faculty of Science and Technology, University of the Basque Country UPV/EHU , Basque Country , Spain .,b Department of Zoology and Animal Cell Biology , Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU , Basque Country , Spain , and
| | - M Soto
- a CBET Research Group, Department of Zoology and Animal Cell Biology , Faculty of Science and Technology, University of the Basque Country UPV/EHU , Basque Country , Spain .,b Department of Zoology and Animal Cell Biology , Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU , Basque Country , Spain , and
| | - I Marigómez
- a CBET Research Group, Department of Zoology and Animal Cell Biology , Faculty of Science and Technology, University of the Basque Country UPV/EHU , Basque Country , Spain .,b Department of Zoology and Animal Cell Biology , Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU , Basque Country , Spain , and
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Subramanian R, Zhu X, Kerr SJ, Esmay JD, Louie SW, Edson KZ, Walter S, Fitzsimmons M, Wagner M, Soto M, Pham R, Wilson SF, Skiles GL. Nonclinical Pharmacokinetics, Disposition, and Drug-Drug Interaction Potential of a Novel D-Amino Acid Peptide Agonist of the Calcium-Sensing Receptor AMG 416 (Etelcalcetide). Drug Metab Dispos 2016; 44:1319-31. [DOI: 10.1124/dmd.115.068007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/08/2016] [Indexed: 11/22/2022] Open
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de la Varga D, Ruiz I, Álvarez JA, Soto M. Methane and carbon dioxide emissions from constructed wetlands receiving anaerobically pretreated sewage. Sci Total Environ 2015; 538:824-833. [PMID: 26342902 DOI: 10.1016/j.scitotenv.2015.08.090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 04/23/2015] [Revised: 07/21/2015] [Accepted: 08/16/2015] [Indexed: 06/05/2023]
Abstract
The aim of this research was to determine methane and carbon dioxide emissions from a hybrid constructed wetland (CW) treating anaerobically pre-treated sewage. The CW was constituted of two horizontal flow (free water surface followed by a subsurface) units. A long-term study was carried out as both CW units were monitored for three campaigns in Period 1 (0.9-1.5years after start-up), and four campaigns in Period 2 (4.5-5.8years after start-up). The closed chamber method with collecting surfaces of 1810cm(2) was used. For this system, variability due to position in the transverse section of CW, plant presence or absence and recommended sampling period was determined. Overall methane emissions ranged from 96 to 966mgCH4m(-2) d(-1), depending on several factors as the operation time, the season of the year and the position in the system. Methane emissions increased from 267±188mgCH4m(-2)d(-1) during the second year of operation to 543±161mgCH4m(-2)d(-1) in the sixth year of operation. Methane emissions were related to the age of the CW and the season of the year, being high in spring and becoming lower from spring to winter. Total CO2 emissions ranged mostly from 3500 to 5800mgCO2m(-2)d(-1) during the sixth year of operation, while nitrous oxide emissions were below the detection limit of the method.
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Affiliation(s)
- D de la Varga
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga no 10, 15008 A Coruña, Galiza, Spain
| | - I Ruiz
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga no 10, 15008 A Coruña, Galiza, Spain
| | - J A Álvarez
- AIMEN Technology Center, C/. Relva, 27 A - Torneiros, Porriño, Pontevedra 36410, Spain
| | - M Soto
- Department of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga no 10, 15008 A Coruña, Galiza, Spain.
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Lage DP, Martins VT, Duarte MC, Garde E, Chávez-Fumagalli MA, Menezes-Souza D, Roatt BM, Tavares CAP, Soto M, Coelho EAF. Prophylactic properties of aLeishmania-specific hypothetical protein in a murine model of visceral leishmaniasis. Parasite Immunol 2015; 37:646-56. [DOI: 10.1111/pim.12287] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 10/05/2015] [Indexed: 12/16/2022]
Affiliation(s)
- D. P. Lage
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - V. T. Martins
- Departamento de Bioquímica e Imunologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - M. C. Duarte
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - E. Garde
- Centro de Biología Molecular Severo Ochoa; CSIC-UAM; Departamento de Biología Molecular; Universidad Autónoma de Madrid; Madrid Spain
| | - M. A. Chávez-Fumagalli
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - D. Menezes-Souza
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - B. M. Roatt
- Departamento de Patologia Clínica; COLTEC; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - C. A. P. Tavares
- Departamento de Bioquímica e Imunologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - M. Soto
- Centro de Biología Molecular Severo Ochoa; CSIC-UAM; Departamento de Biología Molecular; Universidad Autónoma de Madrid; Madrid Spain
| | - E. A. F. Coelho
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical; Faculdade de Medicina; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais Brazil
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Vázquez MA, Sen R, Soto M. Physico-chemical and biological characteristics of compost from decentralised composting programmes. Bioresour Technol 2015; 198:520-532. [PMID: 26432056 DOI: 10.1016/j.biortech.2015.09.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 07/18/2015] [Revised: 09/08/2015] [Accepted: 09/10/2015] [Indexed: 06/05/2023]
Abstract
Composts that originated from small-scale composting programmes including home, community and canteen waste composters were studied. Heavy metals concentration indicated compliance with current regulations for conventional and organic agriculture. Compost from canteen waste showed high organic matter content (74% VS), while community (44 ± 20% VS) and home composts (31 ± 16% VS) had moderate levels. N content increased from home compost (1.3 ± 0.9% dm) to community (2.0 ± 0.9%) and canteen compost (2.5-3.0%) while P content ranged from 0.4% to 0.6% dm. C/N, absorbance E4/E6 and N-NH4(+)/N-NO3(-) ratios as well as respiration index indicated well-stabilized final products. Culturable bacterial and fungal cfu linkage to composting dynamics were identified and higher diversity of invertebrates was found in the smaller scale static systems. With similar process evolution indicators to industrial systems, overall results support the sustainability of these small-scale, self-managed composting systems.
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Affiliation(s)
- M A Vázquez
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Galiza, Spain; Division of Biology and Conservation Ecology, School of Science and the Environment, Manchester Metropolitan University, UK
| | - R Sen
- Division of Biology and Conservation Ecology, School of Science and the Environment, Manchester Metropolitan University, UK
| | - M Soto
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Galiza, Spain.
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Lilamand M, Cesari M, Del Campo N, Cantet C, Soto M, Payoux P, Ousset PJ, Andrieu S, Vellas B. O-052: Brain amyloid deposition is associated with lower instrumental activities of daily living performance in older adults. Results from the MAPT study. Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30065-6] [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: 11/17/2022]
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Soto M, Abushakra S, Cummings J, Siffert J, Robert P, Vellas B, Lyketsos CG. Progress in Treatment Development for Neuropsychiatric Symptoms in Alzheimer's Disease: Focus on Agitation and Aggression. A Report from the EU/US/CTAD Task Force. J Prev Alzheimers Dis 2015; 2:184-188. [PMID: 26413494 PMCID: PMC4580980 DOI: 10.14283/jpad.2015.77] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The management of neuropsychiatric symptoms (NPS) such as agitation and aggression is a major priority in caring for people with Alzheimer's disease (AD). Agitation and aggression (A/A) are among the most disruptive symptoms, and given their impact, they are increasingly an important target for development of effective treatments. Considerable progress has been made in the last years with a growing number of randomized controlled trials (RCTs) of drugs for NPS. The limited benefits reported in some RCTs may be accounted for by the absence of a biological link of the tested molecule to NPS and also by key methodological issues. In recent RCTs of A/A, a great heterogeneity design was found. Designing trials for dementia populations with NPS presents many challenges, including identification of appropriate participants for such trials, engagement and compliance of patients and caregivers in the trials and the choice of optimal outcome measures to demonstrate treatment effectiveness. The EU/US -CTAD Task Force, an international collaboration of investigators from academia, industry, non-profit foundations, and regulatory agencies met in Philadelphia on November 19, 2014 to address some of these challenges. Despite potential heterogeneity in clinical manifestations and neurobiology, agitation and aggression seems to be accepted as an entity for drug development. The field appears to be reaching a consensus in using both agitation and aggression (or other NPS)-specific quantitative measures plus a global rating of change for agitation outcomes based on clinician judgment as the main outcomes.
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Affiliation(s)
- M Soto
- Gerontopole, INSERM U1027, Alzheimer's Disease Research and Clinical Center, Toulouse University Hospital, Toulouse, France
| | - S Abushakra
- Transition Therapeutics, San Matteo, California, USA
| | - J Cummings
- Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, USA
| | - J Siffert
- Avanir Pharmaceuticals, Inc. Aliso Viejo, USA
| | - P Robert
- EA CoBTeK/ICMRR University of Nice Sophia Antipolis - CHU, France
| | - B Vellas
- Gerontopole, INSERM U1027, Alzheimer's Disease Research and Clinical Center, Toulouse University Hospital, Toulouse, France
| | - C G Lyketsos
- Department of Psychiatry, The Johns Hopkins Bayview Medical Center, Baltimore, MD, USA
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Díez G, Soto M, Blanco JM. Biological characterization of the skin of shortfin mako shark Isurus oxyrinchus and preliminary study of the hydrodynamic behaviour through computational fluid dynamics. J Fish Biol 2015; 87:123-137. [PMID: 26044174 DOI: 10.1111/jfb.12705] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 04/15/2014] [Accepted: 03/26/2015] [Indexed: 06/04/2023]
Abstract
This study characterized the morphology, density and orientation of the dermal denticles along the body of a shortfin mako shark Isurus oxyrinchus and identified the hydrodynamic parameters of its body through a computational fluid-dynamics model. The study showed a great variability in the morphology, size, shape, orientation and density of dermal denticles along the body of I. oxyrinchus. There was a significant higher density in dorsal and ventral areas of the body and their highest angular deviations were found in the lower part of the mouth and in the areas between the pre-caudal pit and the second dorsal and pelvic fins. A detailed three-dimensional geometry from a scanned body of a shark was carried out to evaluate the hydrodynamic properties such as drag coefficient, lift coefficient and superficial (skin) friction coefficient of the skin together with flow velocity field, according to different roughness coefficients simulating the effect of the dermal denticles. This preliminary approach contributed to detailed information of the denticle interactions. As the height of the denticles was increased, flow velocity and the effect of lift decreased whereas drag increased. The highest peaks of skin friction coefficient were observed around the pectoral fins.
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Affiliation(s)
- G Díez
- Marine Research Division, AZTI, Txatxarramendi s/n (48395) Sukarrieta, Bizkaia, Spain
| | - M Soto
- Department of Zoology and Animal Cell Biology, Research Centre for Experimental Marine Biology and Biotechnology (PIE-UPV/EHU), University of the Basque Country, Bilbao and Areatza z/g, Plentzia, Bizkaia, Spain
| | - J M Blanco
- Department of Nuclear Engineering and Fluid Mechanics, School of Engineering, (UPV/EHU) University of the Basque Country, Alameda de Urquijo s/n (48013) Bilbao, Bizkaia, Spain
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Soto M, Boyer TA, Biradar S, Ge L, Vajtai R, Elías-Zúñiga A, Ajayan PM, Barrera EV. Effect of interwall interaction on the electronic structure of double-walled carbon nanotubes. Nanotechnology 2015; 26:165201. [PMID: 25816374 DOI: 10.1088/0957-4484/26/16/165201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Through this study, the results of density functional theory calculations within the local density approximation of the electronic structure of zigzag-zigzag double-walled carbon nanotubes (DWCNTs), with chiral indices (n, 0)@(m, 0) for n = 7-15, and m = 15-26, has been presented and the effects of interwall interaction and orbital hybridization on the electronic structure of these systems has been discussed. It was observed that the electronic band gap of the aforementioned DWCNTs depends on the interwall distance only for metallic-semiconductor configurations and on the intrinsic properties of the constituent tubes in all other combinations. It was also observed that the calculated band gap for most of the metallic-metallic DWCNTs was smaller than semiconductor-metallic, metallic-semiconductor, and semiconductor-semiconductor configurations. Metallic-semiconductor DWCNTs were found to be desirable for band gap tuning applications because of their dependence on interwall distance, opening up the possibility of using such systems in electronic device applications, such as transistors. Other applications include the use of DWCNTs in macroscopic carbon nanotube conducting wires, for which metallic-metallic and semiconducting-metallic zigzag-zigzag DWCNTs were found to be the most desirable configurations due to their small band gaps.
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Affiliation(s)
- M Soto
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
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Soto M, Vázquez MA, de Vega A, Vilariño JM, Fernández G, de Vicente MES. Methane potential and anaerobic treatment feasibility of Sargassum muticum. Bioresour Technol 2015; 189:53-61. [PMID: 25864031 DOI: 10.1016/j.biortech.2015.03.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 02/14/2015] [Revised: 03/13/2015] [Accepted: 03/14/2015] [Indexed: 06/04/2023]
Abstract
The aim of this research was to study the feasibility of anaerobic digestion of the alga Sargassum muticum with special attention to its biodegradability, potential toxicity caused by its salt content, alga components and intermediate process compounds, and potential limitations to continuous treatment. Specific methane potential (SMP) for three samples of S. muticum collected from the Galician coast (Northwest Spain) at different seasons ranged from 166 to 208 mLCH4/gVS while accumulation of toxic compounds was not observed at alga concentrations of up to 100 gTS/L, except for one of the samples in which inhibition started at 80-100 gTS/L. Continuous digestion is feasible at alga concentration up to 100 gTS/L with methane production rates ranging from 0.14 to 0.26 LCH4/Ld at organic loading rates of 3.2 gTS/Ld, but SMP dropped to 113-159 mLCH4/gVS.
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Affiliation(s)
- M Soto
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga n° 10, 15008 A Coruña, Galiza, Spain.
| | - M A Vázquez
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga n° 10, 15008 A Coruña, Galiza, Spain
| | - A de Vega
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga n° 10, 15008 A Coruña, Galiza, Spain
| | - J M Vilariño
- INVESGA, S.L. Rúa Perseo n° 9, 15179 Oleiros, A Coruña, Spain
| | - G Fernández
- INVESGA, S.L. Rúa Perseo n° 9, 15179 Oleiros, A Coruña, Spain
| | - M E S de Vicente
- Dept. of Physical Chemistry and Chemical Engineering I, University of A Coruña, Rúa da Fraga n° 10, 15008 A Coruña, Galiza, Spain
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