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Herrera W, Vera J, Hermosilla E, Diaz M, Tortella GR, Dos Reis RA, Seabra AB, Diez MC, Rubilar O. The Catalytic Role of Superparamagnetic Iron Oxide Nanoparticles as a Support Material for TiO 2 and ZnO on Chlorpyrifos Photodegradation in an Aqueous Solution. Nanomaterials (Basel) 2024; 14:299. [PMID: 38334570 PMCID: PMC10856829 DOI: 10.3390/nano14030299] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
Chlorpyrifos (CP) is a globally used pesticide with acute toxicity. This work studied the photocatalytic degradation of CP using TiO2, ZnO nanoparticles, and nanocomposites of TiO2 and ZnO supported on SPIONs (SPION@SiO2@TiO2 and SPION@SiO2@ZnO). The nanocomposites were synthesized by multi-step incipient wetness impregnation. The effects of the initial pH, catalyst type, and dose were evaluated. The nanocomposites of SPION@SiO2@TiO2 and SPION@SiO2@ZnO showed higher CP photodegradation levels than free nanoparticles, reaching 95.6% and 82.3%, respectively, at pH 7. The findings indicate that iron oxide, as a support material for TiO2 and ZnO, extended absorption edges and delayed the electron-hole recombination of the nanocomposites, improving their photocatalytic efficiency. At the same time, these nanocomposites, especially SPION@SiO2@TiO2, showed efficient degradation of 3,5,6-trichloropyridinol (TCP), one of the final metabolites of CP. The stability and reuse of this nanocomposite were also evaluated, with 74.6% efficiency found after six cycles. Therefore, this nanomaterial represents an eco-friendly, reusable, and effective alternative for the degradation of chlorpyrifos in wastewater treatment.
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Affiliation(s)
- Wence Herrera
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco 4780000, Chile
| | - Joelis Vera
- Programa de Doctorado en Ciencias de la Ingeniería Mención Bioprocesos, Universidad de la Frontera, Temuco 4780000, Chile;
| | - Edward Hermosilla
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
| | - Marcela Diaz
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
| | - Gonzalo R. Tortella
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
| | - Roberta Albino Dos Reis
- Center for Natural and Human Sciences, Universidade Federal do ABC, Santo André 09210-580, SP, Brazil; (R.A.D.R.); (A.B.S.)
| | - Amedea B. Seabra
- Center for Natural and Human Sciences, Universidade Federal do ABC, Santo André 09210-580, SP, Brazil; (R.A.D.R.); (A.B.S.)
| | - María Cristina Diez
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
- Departamento de Ingeniería Química, Universidad de La Frontera, Temuco 4780000, Chile
| | - Olga Rubilar
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
- Departamento de Ingeniería Química, Universidad de La Frontera, Temuco 4780000, Chile
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Herrera W, Vera J, Aponte H, Hermosilla E, Fincheira P, Parada J, Tortella G, Seabra AB, Diez MC, Rubilar O. Meta-analysis of metal nanoparticles degrading pesticides: what parameters are relevant? Environ Sci Pollut Res Int 2023; 30:60168-60179. [PMID: 37017842 DOI: 10.1007/s11356-023-26756-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 03/27/2023] [Indexed: 05/10/2023]
Abstract
The rise in the global population demands an increasing food supply and methods to boost agricultural production. Pesticides are necessary for agricultural production models, avoiding losses of close to 40%. Nevertheless, the extensive use of pesticides can cause their accumulation in the environment, causing problems for human health, biota, and ecosystems. Thus, new technologies have emerged to remove these wastes efficiently. In recent years, metal and metal oxide nanoparticles (MNPs) have been reported as promising catalysts to degrade pesticides; however, a systematic understanding of their effect on pesticide degradation is still required. Therefore, this study focused on a meta-analysis of articles available in Elsevier's Scopus and Thomas Reuters Web of Science, found by searching for "nanoparticle pesticide" and "pesticide contamination." After passing different filters, the meta-analysis was performed with 408 observations from 94 reviews, which comprise insecticides, herbicides, and fungicides, including organophosphates, organochlorines, carbamates, triazines, and neonicotinoids. Herein, 14 different MNPs (Ag, Ni, Pd, Co3O4, BiOBr, Au, ZnO, Fe, TiO2, Cu, WO3, ZnS, SnO2, and Fe0), improved pesticide degradation, with the highest degradation rates achieved by Ag (85%) and Ni (82.5%). Additionally, the impact of the MNP functionalization, size, and concentration on pesticide degradation was quantified and compared. In general, the degradation rate increased when the MNPs were functionalized (~ 70%) compared to naked (~ 49%). Also, the particle size significantly affected the degradation of pesticides. To our knowledge, this study is the first meta-analysis performed about the impact of MNPs on pesticide degradation, providing an essential scientific basis for future studies.
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Affiliation(s)
- Wence Herrera
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Joelis Vera
- Programa de Doctorado en Ciencias de la Ingeniería mención Bioprocesos, Universidad de la Frontera, Temuco, Chile
| | - Humberto Aponte
- Instituto de Ciencias Agroalimentarias, Animales y Ambientales, Laboratorio de Ecología Microbiana Y Biogeoquímica de Suelos, Universidad de O'Higgins, San Fernando, Chile
| | - Edward Hermosilla
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco, Chile
| | - Paola Fincheira
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco, Chile
| | - Javiera Parada
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco, Chile
- Departamento de ingeniería Química, Universidad de La Frontera, Temuco, Chile
| | - Gonzalo Tortella
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco, Chile
- Departamento de ingeniería Química, Universidad de La Frontera, Temuco, Chile
| | - Amedea B Seabra
- Center for Natural and Human Sciences, Universidade Federal do ABC, SP, Santo André, Brazil
| | - Maria Cristina Diez
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco, Chile
- Departamento de ingeniería Química, Universidad de La Frontera, Temuco, Chile
| | - Olga Rubilar
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco, Chile.
- Departamento de ingeniería Química, Universidad de La Frontera, Temuco, Chile.
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Vera J, Herrera W, Hermosilla E, Díaz M, Parada J, Seabra AB, Tortella G, Pesenti H, Ciudad G, Rubilar O. Antioxidant Activity as an Indicator of the Efficiency of Plant Extract-Mediated Synthesis of Zinc Oxide Nanoparticles. Antioxidants (Basel) 2023; 12:784. [PMID: 37107159 PMCID: PMC10135172 DOI: 10.3390/antiox12040784] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 04/29/2023] Open
Abstract
The green synthesis of zinc oxide nanoparticles (ZnO NPs) using a diverse range of plant species has been extensively reported. Despite the success achieved by biogenic synthesis, there are problems with the control and prediction of the properties of ZnO NPs, due to phytochemical diversity between plant species. In this sense, the main objective of our work was to investigate the effect of the antioxidant activity (AA) of plant extracts on the physicochemical characteristics of ZnO NPs (production yield, chemical composition, polydispersity index (PDI), surface charge (ζ-potential) and average particle size). In order to accomplish this objective, four plant extract with different antioxidant activities were used: Galega officinalis, Buddleja globosa, Eucalyptus globulus, and Aristotelia chilensis. Phytochemical screening, quantitative analysis of phenolic compounds and antioxidant activity determination of the different extracts were carried out. Chemical species such as catechin, malvidin, quercetin, caffeic acid, and ellagic acid were the dominant components, found in the extracts studied. The A. chilensis extract showed the highest value of total phenolic compounds (TPC) and AA, followed by E. globulus, B. globosa and G. officinalis. Zetasizer, Fourier-transform infrared (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM) and thermogravimetric analysis (TGA) data show that plant extracts with lower AA leads to a decrease in the yield of ZnO NPs and an increase in the amount of residual organic extract that remains on the particles. The latter caused an increase in the average particle size, PDI and ζ-potential as a consequence of agglomeration and particle coarsening. Our result suggest that it is possible to use the AA as an indicator of the potential reducing capacity of plant extracts. In this way it is possible to guarantee the reproducibility of the synthesis process as well as ensure the formation of ZnO NPs with desired characteristics.
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Affiliation(s)
- Joelis Vera
- Doctorate in Sciences Engineering with Specialization in Bioprocess, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Wence Herrera
- Doctoral Program in Sciences of Natural Resources, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Edward Hermosilla
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile; (E.H.); (M.D.); (J.P.); (G.T.)
- Chemical Engineering Department, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Marcela Díaz
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile; (E.H.); (M.D.); (J.P.); (G.T.)
- Chemical Engineering Department, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Javiera Parada
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile; (E.H.); (M.D.); (J.P.); (G.T.)
- Chemical Engineering Department, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Amedea B. Seabra
- Center for Natural and Human Sciences, Universidade Federal do ABC, Santo André 09210-580, Brazil;
| | - Gonzalo Tortella
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile; (E.H.); (M.D.); (J.P.); (G.T.)
- Chemical Engineering Department, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Héctor Pesenti
- Núcleo de Investigación en Bioprocesos y Materiales Avanzados, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco 4810302, Chile;
| | - Gustavo Ciudad
- Chemical Engineering Department, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
- Instituto del Medio Ambiente (IMA), Universidad de La Frontera, Temuco 4811230, Chile
| | - Olga Rubilar
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile; (E.H.); (M.D.); (J.P.); (G.T.)
- Chemical Engineering Department, Faculty of Engendering and Science, Universidad de La Frontera, Temuco 4811230, Chile;
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Hermosilla E, Díaz M, Vera J, Contreras MJ, Leal K, Salazar R, Barrientos L, Tortella G, Rubilar O. Synthesis of Antimicrobial Chitosan-Silver Nanoparticles Mediated by Reusable Chitosan Fungal Beads. Int J Mol Sci 2023; 24:ijms24032318. [PMID: 36768640 PMCID: PMC9916930 DOI: 10.3390/ijms24032318] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/26/2023] Open
Abstract
Nanoparticles, especially silver nanoparticles (Ag NPs), have gained significant attention in recent years as potential alternatives to traditional antibiotics for treating infectious diseases due to their ability to inhibit the growth of microorganisms effectively. Ag NPs can be synthesized using fungi extract, but the method is not practical for large-scale production due to time and biomass limitations. In this study, we explore the use of chitosan to encapsulate the mycelia of the white-rot fungus Stereum hirsutum and form chitosan fungal beads for use in multiple extractions and nanoparticle synthesis. The resulting nanoparticles were characterized using various techniques, including UV-vis spectrophotometry, transmission electron microscopy, dynamic light scattering, and X-ray diffraction analysis. The analysis revealed that the synthesized nanoparticles were composed of chitosan-silver nanoparticles (CS-Ag NPs) with a size of 25 nm. The chitosan fungal beads were reused in three extractions and nanoparticle synthesis before they lost their ability to produce CS-Ag NPs. The CS-Ag NPs showed potent antimicrobial activity against phytopathogenic and human pathogenic microorganisms, including Pseudomonas syringae, Escherichia coli, Staphylococcus aureus, and Candida albicans, with minimum inhibitory concentrations of 1.5, 1.6, 3.1, and 4 µg/mL, respectively. The antimicrobial activity of CS-Ag NPs was from 2- to 40-fold higher than Ag NPs synthesized using an aqueous extract of unencapsulated fungal biomass. The CS-Ag NPs were most effective at a pH of five regarding the antimicrobial activity. These results suggest that the chitosan fungal beads may be a promising alternative for the sustainable and cost-effective synthesis of CS-Ag NPs with improved antimicrobial activity.
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Affiliation(s)
- Edward Hermosilla
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Correspondence: (E.H.); (O.R.)
| | - Marcela Díaz
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
| | - Joelis Vera
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Programa de Doctorado en Ciencias de la Ingeniería, Universidad de La Frontera, Temuco 4811230, Chile
| | - María José Contreras
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Center of Excellence in Traslational Medicine (CEMT), Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
| | - Karla Leal
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Center of Excellence in Traslational Medicine (CEMT), Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
| | - Rodrigo Salazar
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Center of Excellence in Traslational Medicine (CEMT), Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
| | - Leticia Barrientos
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Center of Excellence in Traslational Medicine (CEMT), Universidad de La Frontera, Av. Alemania 0458, Temuco 4811230, Chile
| | - Gonzalo Tortella
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
| | - Olga Rubilar
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
- Correspondence: (E.H.); (O.R.)
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Parada J, Díaz M, Hermosilla E, Vera J, Tortella G, Seabra AB, Quiroz A, Hormazábal E, Rubilar O. Synthesis and Antibacterial Activity of Manganese-Ferrite/Silver Nanocomposite Combined with Two Essential Oils. Nanomaterials 2022; 12:nano12132137. [PMID: 35807973 PMCID: PMC9268028 DOI: 10.3390/nano12132137] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 12/14/2022]
Abstract
The antimicrobial activity of metal nanoparticles obtained by biogenic routes has been extensively reported. However, their combined use with other antimicrobial formulations, such as essential oils, remains scarcely explored. In this work, a manganese-ferrite/silver nanocomposite (MnFe2O4/Ag-NC) was synthesized in a two-step procedure: first, MnFe2O4 nanoparticles were produced by a coprecipitation method, followed by in situ biogenic reduction of silver ions using Galega officinalis. MnFe2O4/Ag-NC was characterized using transmission electron microscopy (TEM), scanning electron microscopy equipped with an energy dispersive X-ray analyzer (SEM-EDX), and a vibrating sample magnetometer (VSM-SQUID). The antibacterial activity if MnFe2O4/Ag-NC was evaluated against Pseudomonas syringae by determining its minimum inhibitory concentration (MIC) in the presence of two essential oils: eucalyptus oil (EO) and garlic oil (GO). The fractional inhibitory concentration (FIC) was also calculated to determine the interaction between MnFe2O4/Ag-NC and each oil. The MIC of MnFe2O4/Ag-NC was eightfold reduced with the two essential oils (from 20 to 2.5 µg mL−1). However, the interaction with EO was synergistic (FIC: 0.5), whereas the interaction with GO was additive (FIC: 0.75). Additionally, a time-kill curve analysis was performed, wherein the MIC of the combination of MnFe2O4/Ag-NC and EO provoked a rapid bactericidal effect, corroborating a strong synergism. These findings suggest that by combining MnFe2O4/Ag-NC with essential oils, the necessary ratio of the nanocomposite to control phytopathogens can be reduced, thus minimizing the environmental release of silver.
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Affiliation(s)
- Javiera Parada
- Chemical Engineering Department, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (J.P.); (E.H.); (G.T.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (M.D.); (J.V.)
| | - Marcela Díaz
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (M.D.); (J.V.)
| | - Edward Hermosilla
- Chemical Engineering Department, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (J.P.); (E.H.); (G.T.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (M.D.); (J.V.)
| | - Joelis Vera
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (M.D.); (J.V.)
- Programa de Doctorado en Ciencias de la Ingeniería, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile
| | - Gonzalo Tortella
- Chemical Engineering Department, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (J.P.); (E.H.); (G.T.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (M.D.); (J.V.)
| | - Amedea B. Seabra
- Center for Natural and Human Sciences, Federal University of ABC (UFABC), Santo André 09210-580, Brazil;
| | - Andrés Quiroz
- Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (A.Q.); (E.H.)
| | - Emilio Hormazábal
- Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (A.Q.); (E.H.)
| | - Olga Rubilar
- Chemical Engineering Department, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (J.P.); (E.H.); (G.T.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile; (M.D.); (J.V.)
- Correspondence:
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Hermosilla E, Díaz M, Vera J, Seabra AB, Tortella G, Parada J, Rubilar O. Molecular Weight Identification of Compounds Involved in the Fungal Synthesis of AgNPs: Effect on Antimicrobial and Photocatalytic Activity. Antibiotics (Basel) 2022; 11:antibiotics11050622. [PMID: 35625266 PMCID: PMC9138036 DOI: 10.3390/antibiotics11050622] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 12/04/2022] Open
Abstract
The biological synthesis of silver nanoparticles (AgNPs) for medical, environmental, and industrial applications is considered an alternative to chemical synthesis methods. Additionally, the reducing, capping, and stabilizing molecules produced by the organisms can play a key role in the further activity of AgNPs. In this work, we evaluated the synthesis of AgNPs by four molecular weight fractions (S1: <10 kDa, S2: 10 to 30 kDa, S3: 30 to 50 kDa, and S4: >50 kDa) of mycelia-free aqueous extract produced by the white-rot fungus Stereum hirsutum and their effect on the antimicrobial activity against Pseudomonas syringae and photocatalytic decolorization of nine synthetic dyes exposed to sunlight radiation. All synthesis assay fractions showed the characteristic surface plasmon resonance (SPR) with 403 to 421 nm peaks. TEM analysis of synthesized AgNPs showed different sizes: the whole mycelia-free extracts S0 (13.8 nm), S1 (9.06 nm), S2 (10.47 nm), S3 (22.48 nm), and S4 (16.92 nm) fractions. The results of disk diffusion assays showed an inverse relation between antimicrobial activity and the molecular weight of compounds present in the mycelia-free aqueous extract used to synthesize AgNPs. The AgNPs synthesized by S0 (14.3 mm) and S1(14.2 mm) generated the highest inhibition diameter of P. syringae growth. By contrast, in the photocatalytic assays, the AgNPs synthesized by the S2 fraction showed the highest discoloration in all the dyes tested, reaching 100% of the discoloration of basic dyes after 2 h of sunlight exposure. The maximum discoloration observed in reactive and acid dyes was 53.2% and 65.3%, respectively. This differentiation in the antimicrobial and photocatalytic activity of AgNPs could be attributed to the capping effect of the molecules present in the extract fractions. Therefore, the molecular separation of synthesis extract enables the specific activities of the AgNPs to be enhanced.
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Affiliation(s)
- Edward Hermosilla
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile; (G.T.); (J.P.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile; (M.D.); (J.V.)
- Correspondence: (E.H.); (O.R.)
| | - Marcela Díaz
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile; (M.D.); (J.V.)
| | - Joelis Vera
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile; (M.D.); (J.V.)
- Programa de Doctorado en Ciencias de la Ingeniería, Universidad de La Frontera, Temuco 4811230, Chile
| | - Amedea B. Seabra
- Center for Natural and Human Sciences, Universidade Federal do ABC, Santo André 09210-580, Brazil;
| | - Gonzalo Tortella
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile; (G.T.); (J.P.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile; (M.D.); (J.V.)
| | - Javiera Parada
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile; (G.T.); (J.P.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile; (M.D.); (J.V.)
| | - Olga Rubilar
- Chemical Engineering Department, Universidad de La Frontera, Temuco 4811230, Chile; (G.T.); (J.P.)
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco 4811230, Chile; (M.D.); (J.V.)
- Correspondence: (E.H.); (O.R.)
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Hermosilla E, Seabra AB, Lourenço IM, Ferreira FF, Tortella G, Rubilar O. Highly sensitive oxidation of MBTH/DMAB by MnFe2O4 nanoparticles as a promising method for nanozyme-based sensor development. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126585] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Perapoch J, Vidal R, Gómez-Lumbreras A, Hermosilla E, Riera L, Cortés J, Céspedes MC, Ramos-Quiroga JA, Morros R. Prematurity and ADHD in Childhood: An Observational Register-Based Study in Catalonia. J Atten Disord 2021; 25:933-941. [PMID: 31409171 DOI: 10.1177/1087054719864631] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To evaluate the association between prematurity (by the gestational week [gw]) and ADHD during childhood. Method: Observational, matched cohort study using data from children born in a tertiary-level hospital (Hospital Universitari Vall d'Hebron, Catalonia, Spain) during 1995-2007 and data from the Information System for the Development of Research in Primary Health Care (SIDIAP database, Catalonia, Spain). Results: Prevalence of ADHD increases as gestational age decreases, 12.7% for those born ≤28 gw, compared to 3.2% for those born after the 37 gw. The risk of developing ADHD in the non-premature children tends to increase as the gw decreases (35-36 gw, hazard ratio [HR] = 1.70, 95% confidence interval [CI] [1.19, 2.44]; 33-34 gw, HR = 3.38, 95% CI [2.08, 5.50]; 29-32 gw, HR = 2.37, 95% CI [1.54, 3.63]; and ≤28 gw, HR = 5.57, 95% CI [2.49, 12.46]) Conclusion: Being born preterm is associated with a risk of developing ADHD, also in late preterm children (35-36 gw). Attention when taking care of these infants regarding their mental health must be made.
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Affiliation(s)
- J Perapoch
- Pediatric Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - R Vidal
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Catalonia. Spain.,Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR).,Biomedical Network Research Centre on Mental Health (CIBERSAM)
| | - A Gómez-Lumbreras
- Institut Universitari d'Investigació en Atenció Primària Jordi Gol, Barcelona, Spain
| | - E Hermosilla
- Sistema d'Informació per al desenvolupament de la investigació en Atenció Primària, Barcelona, Spain
| | - L Riera
- Institut Català de la Salut, Barcelona, Spain
| | - J Cortés
- Universitat Politècnica de Catalunya, Barcelona, Spain
| | - M C Céspedes
- Pediatric Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - J A Ramos-Quiroga
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Catalonia. Spain.,Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR).,Biomedical Network Research Centre on Mental Health (CIBERSAM)
| | - R Morros
- Institut Universitari d'Investigació en Atenció Primària Jordi Gol, Barcelona, Spain.,Deparment of Pharmacology and Therapeutics, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Hermosilla E, Schalchli H, Diez MC. Biodegradation inducers to enhance wheat straw pretreatment by Gloeophyllum trabeum to second-generation ethanol production. Environ Sci Pollut Res Int 2020; 27:8467-8480. [PMID: 31902077 DOI: 10.1007/s11356-019-07460-5] [Citation(s) in RCA: 2] [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] [Received: 07/29/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
The native state of lignocellulosic biomass is highly resistant to enzymatic hydrolysis and the fermentation process of biofuel production. Brown-rot fungi use an extracellular Fenton system to degrade lignocellulosic biomass in the initial stages of decay. In this work, the combined effects of Mn2+, Fe2+, and NO3- inducers were evaluated based on the activities of hydrolytic enzymes and Fe3+ reduction as well as the catechol-type compound production during wheat straw pretreatment by the brown-rot fungus Gloeophyllum trabeum. Weight loss and chemical changes were evaluated to establish the culture conditions for stimulating wheat straw degradation using a central composite design. The results showed that weight loss and the Fe3+-reducing activity were promoted at the highest concentrations of Fe2+. A positive effect on catechol compound production by the addition of Mn2+ and NO3- was observed. Cellulase activity was increased at the highest concentration of NO3-. The multiple optimizations of G. trabeum culture conditions in wheat straw resulted in 11.3% weight loss and 0.47 total crystallinity index at 0.24 M NO3-, 0.95 mM Fe2+, and 0.85 mM Mn2+ after 40 days. The wheat straw pretreatment by G. trabeum for 10 days increased glucose recovery. The results indicated that the wheat straw pretreatment using G. trabeum with biodegradation inducers could be a complementary step to physicochemical pretreatment of lignocellulosic biomass for production of second-generation ethanol.
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Affiliation(s)
- Edward Hermosilla
- Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Temuco, Chile
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Heidi Schalchli
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
- Chemical Engineering Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - María Cristina Diez
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile.
- Chemical Engineering Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile.
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Hermosilla E, Rubilar O, Schalchli H, da Silva AS, Ferreira-Leitao V, Diez MC. Sequential white-rot and brown-rot fungal pretreatment of wheat straw as a promising alternative for complementary mild treatments. Waste Manag 2018; 79:240-250. [PMID: 30343752 DOI: 10.1016/j.wasman.2018.07.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 02/05/2018] [Revised: 07/23/2018] [Accepted: 07/24/2018] [Indexed: 05/06/2023]
Abstract
White-rot and brown-rot fungi have complementary mechanisms to selectively degrade lignin and holocellullose, respectively. Thereby, a fungal co-culture of a white-rot and a brown-rot fungal could result in efficient strategy for a mild lignocellulosic biomass pretreatment. In this work, single, sequential and co-inoculation of the selective-lignin degrading white-rot fungus Ganoderma lobatum and the brown-rot fungus Gloeophyllum trabeum were evaluated as biological pretreatments of wheat straw to enhance enzymatic hydrolysis of cellulose. The single cultures of G. lobatum and G. trabeum exhibited preferential degradation of lignin and hemicellulose, respectively. The total crystallinity index decreased in samples pretreated with G. trabeum but not with G. lobatum. The pretreatment with single cultures of G. lobatum or G. trabeum increased glucose yields by 43.6% and 26.1% respectively compared to untreated straw. Although co-inoculation resulted in higher yields of glucose when compared with single cultures, only a slight synergistic effect between fungi was observed. Contrary, the sequential inoculation of G. lobatum incubated for 10 days followed by G. trabeum incubated for 10 days more showed a strong synergic effect on enzymatic hydrolysis. This sequential culture showed the highest glucose yield (191.5 mg g-1 wheat straw), 2.8-fold higher than untreated wheat straw, and 140-150% higher than the single-cultures of G. lobatum and G. trabeum, respectively.
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Affiliation(s)
- Edward Hermosilla
- Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Temuco, Chile; Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Olga Rubilar
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile; Chemical Engineering Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - Heidi Schalchli
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Ayla Sant'Ana da Silva
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovation and Communication, Rio de Janeiro, RJ, Brazil
| | - Viridiana Ferreira-Leitao
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovation and Communication, Rio de Janeiro, RJ, Brazil; Federal University of Rio de Janeiro, Chemistry Institute, Department of Biochemistry, Postgraduate Program in Biochemistry, Rio de Janeiro, RJ, Brazil
| | - María Cristina Diez
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile; Chemical Engineering Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile.
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11
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Hermosilla E, Schalchli H, Mutis A, Diez MC. Combined effect of enzyme inducers and nitrate on selective lignin degradation in wheat straw by Ganoderma lobatum. Environ Sci Pollut Res Int 2017; 24:21984-21996. [PMID: 28785941 DOI: 10.1007/s11356-017-9841-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 07/27/2017] [Indexed: 06/07/2023]
Abstract
Lignin is one of the main barriers to obtaining added-value products from cellulosic fraction of lignocellulosic biomass due to its random aromatic structure and strong association with cellulose and hemicellulose. Inorganic and organic compounds have been used as enzyme inducers to increase the ligninolytic potential of white-rot fungi, without considering their effect on the selectivity of degradation. In this study, the selective lignin degradation in wheat straw by Ganoderma lobatum was optimized using a central composite design to evaluate the combined effect of Fe2+ and Mn2+ as inducers of ligninolytic enzymes and NO3- as an additional nitrogen source. Selective lignin degradation was promoted to maximize lignin degradation and minimize weight losses. The optimal conditions were 0.18 M NO3-, 0.73 mM Fe2+, and 1 mM Mn2+, which resulted in 50.0% lignin degradation and 18.5% weight loss after 40 days of fungal treatment. A decrease in absorbance at 1505 and 900 cm-1 in fungal-treated samples was observed in the FTIR spectra, indicating lignin and cellulose degradation in fungal-treated wheat straw, respectively. The main ligninolytic enzymes detected during lignin degradation were manganese-dependent and manganese-independent peroxidases. Additionally, confocal laser scanning microscopy revealed that lignin degradation in wheat straw by G. lobatum resulted in higher cellulose accessibility. We concluded that the addition of enzyme inducers and NO3- promotes selective lignin degradation in wheat straw by G. lobatum.
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Affiliation(s)
- Edward Hermosilla
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
- Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Temuco, Chile
| | - Heidi Schalchli
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
- Chemical Engineering Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - Ana Mutis
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile
- Chemical Science and Natural Resource Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - María Cristina Diez
- Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), Universidad de La Frontera, Temuco, Chile.
- Chemical Engineering Department, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile.
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12
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Fina-Aviles F, Medina-Peralta M, Mendez-Boo L, Hermosilla E, Elorza JM, Garcia-Gil M, Ramos R, Bolibar B, Javaid MK, Edwards CJ, Cooper C, Arden NK, Prieto-Alhambra D. The descriptive epidemiology of rheumatoid arthritis in Catalonia: a retrospective study using routinely collected data. Clin Rheumatol 2014; 35:751-7. [PMID: 25344777 DOI: 10.1007/s10067-014-2801-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 08/19/2014] [Revised: 10/01/2014] [Accepted: 10/12/2014] [Indexed: 10/24/2022]
Abstract
Information on the epidemiology of rheumatoid arthritis (RA) in Southern Europe is scarce. We estimated the age- and gender-adjusted incidence and prevalence of RA in Catalonia using routinely collected primary care records. We identified incident (2009-2012) and prevalent (on 31 December 2012) cases of RA in the SIDIAP database using ICD-10 codes. SIDIAP contains anonymized data from computerized primary care records for about five million adults (>80 % of the population). We estimated age- (5-year groups) and gender-specific, and directly standardized incidence and prevalence of RA and confidence intervals (95% CIs) assuming a Poisson distribution. A total of 20,091 prevalent (among whom 5,796 incident) cases of RA were identified among 4,796,498 study participants observed for up to 4 years. Rates of RA increased with age in both genders, peaking at the age of 65-70 years. Age- and gender-standardized incidence and prevalence rates were 0.20/1,000 person-years (95% CI 0.19-0.20) and 4.17/1,000 (4.11-4.23) respectively. Rheumatoid factor was positive (≥10 IU/mL) in 1,833 (73.9 %) of 2,482 cases tested in primary care. The incidence and prevalence of RA in Catalonia are similar to those of other Southern European regions, and lower than those of northern areas. This data will inform health care planning and resource allocation.
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Affiliation(s)
- F Fina-Aviles
- Primary Care Department, Institut Català de la Salut, Av Gran Via de les Corts Catalanes 587, 3rd floor, 08007, Barcelona, Spain
| | - M Medina-Peralta
- Primary Care Department, Institut Català de la Salut, Av Gran Via de les Corts Catalanes 587, 3rd floor, 08007, Barcelona, Spain
| | - L Mendez-Boo
- Primary Care Department, Institut Català de la Salut, Av Gran Via de les Corts Catalanes 587, 3rd floor, 08007, Barcelona, Spain
| | - E Hermosilla
- IDIAP Jordi Gol Primary Care Research Institute, Universitat Autònoma de Barcelona, Av Gran Via de les Corts Catalanes 587, Atic, 08007, Barcelona, Spain
| | - J M Elorza
- IDIAP Jordi Gol Primary Care Research Institute, Universitat Autònoma de Barcelona, Av Gran Via de les Corts Catalanes 587, Atic, 08007, Barcelona, Spain
| | - M Garcia-Gil
- Primary Care Department, Institut Català de la Salut, Av Gran Via de les Corts Catalanes 587, 3rd floor, 08007, Barcelona, Spain.,IDIAP Jordi Gol Primary Care Research Institute, Universitat Autònoma de Barcelona, Av Gran Via de les Corts Catalanes 587, Atic, 08007, Barcelona, Spain
| | - R Ramos
- Primary Care Department, Institut Català de la Salut, Av Gran Via de les Corts Catalanes 587, 3rd floor, 08007, Barcelona, Spain.,IDIAP Jordi Gol Primary Care Research Institute, Universitat Autònoma de Barcelona, Av Gran Via de les Corts Catalanes 587, Atic, 08007, Barcelona, Spain
| | - B Bolibar
- IDIAP Jordi Gol Primary Care Research Institute, Universitat Autònoma de Barcelona, Av Gran Via de les Corts Catalanes 587, Atic, 08007, Barcelona, Spain
| | - M K Javaid
- Oxford NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Windmill Road, OX3 7LD, Oxford, UK.,MRC Lifecourse Epidemiology Unit, University of Southampton, Tremona Road, SO16 6YD, Southampton, UK
| | - C J Edwards
- Southampton General Hospital, Tremona Road, SO16 6YD, Southampton, UK
| | - C Cooper
- Oxford NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Windmill Road, OX3 7LD, Oxford, UK.,MRC Lifecourse Epidemiology Unit, University of Southampton, Tremona Road, SO16 6YD, Southampton, UK
| | - N K Arden
- Oxford NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Windmill Road, OX3 7LD, Oxford, UK.,MRC Lifecourse Epidemiology Unit, University of Southampton, Tremona Road, SO16 6YD, Southampton, UK
| | - D Prieto-Alhambra
- IDIAP Jordi Gol Primary Care Research Institute, Universitat Autònoma de Barcelona, Av Gran Via de les Corts Catalanes 587, Atic, 08007, Barcelona, Spain. .,Oxford NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Windmill Road, OX3 7LD, Oxford, UK. .,MRC Lifecourse Epidemiology Unit, University of Southampton, Tremona Road, SO16 6YD, Southampton, UK. .,SIDIAP Database, IDIAP Jordi Gol, Av Gran Via Corts Catalanes, 587, Atic, 08007, Barcelona, Spain.
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13
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Modesto C, Antón J, Rodriguez B, Bou R, Arnal C, Ros J, Tena X, Rodrigo C, Rotés I, Hermosilla E, Barceló P. Incidence and prevalence of juvenile idiopathic arthritis in Catalonia (Spain). Scand J Rheumatol 2010; 39:472-9. [PMID: 20858139 DOI: 10.3109/03009741003742722] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To ascertain the incidence and prevalence of juvenile idiopathic arthritis (JIA) in Catalonia (autonomous region in northeast Spain), examined according to the currently established disease subtypes. METHODS Before initiating the study, we conducted an educational programme on paediatric rheumatology, addressed to all general paediatricians in Catalonia. A 2-year (2004-2006), prospective, population-based study was then carried out to determine the incidence of JIA. Prospective and retrospective data retrieval was performed to calculate prevalence. The International League of Associations for Rheumatology (ILAR, Edmonton revision) classification criteria were applied. RESULTS Over the study period, 145 new cases of JIA were diagnosed. The mean annual incidence was 6.9/10⁵ children aged less than 16 years (range 5.8-8.1 years; 9.0 years for girls and 4.8 years for boys). On separate analysis of patients ≤ 6 and > 6 years, the distribution in younger children was found to be similar for both girls and boys, whereas in older children, most girls belonged to the oligoarthritis and polyarthritis subgroups, and boys to the enthesitis-related arthritis and undifferentiated subgroups. The calculated prevalence of JIA (31 October 2006) was 39.7 (36.1-43.7)/10⁵ children younger than 16. The relative risk of girls having JIA was 2.1 [95% confidence interval (CI) 1.7-2.7, p < 0.001]. In 70% of patients, the diagnosis was established before the age of 7. Subgroup distribution of prevalent cases mirrored that of incident cases. CONCLUSION This is the first population-based study on the epidemiology of JIA in Catalonia. Incidence and prevalence rates are lower than those reported for several areas in Nordic countries of Europe. Oligoarthritis was the most common subtype.
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Affiliation(s)
- C Modesto
- Department of Rheumatology, University Hospital Vall d'Hebron, Barcelona, Spain.
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14
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Benavente S, Verges R, Hermosilla E, Garcia A, Giralt J. Differential Activation of Protein Translation is Associated with Aggressive Phenotype of Cervical Cancers. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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López-Cano M, Vilallonga R, Sánchez JL, Hermosilla E, Armengol M. Short postal questionnaire and selective clinical examination combined with repeat mailing and telephone reminders as a method of follow-up in hernia surgery. Hernia 2007; 11:397-402. [PMID: 17520168 DOI: 10.1007/s10029-007-0239-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Accepted: 04/23/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND We assessed the usefulness of a short postal questionnaire and selective clinical examination combined with repeat mailing and telephone reminders for quality assessment in hernia surgery. METHODS All patients (n = 1153) who underwent tension-free hernioplasty through an open preperitoneal approach between 1999 and 2003 received a six-item questionnaire with a covering letter and a stamped addressed envelope. Nonresponders received two successive new questionnaires and a telephone call. RESULTS A total of 841 (72.9%) patients returned questionnaires after three reminders (512 after the first mailing, 205 after the second, and 124 after the third). Positive questionnaire answers were documented for 152 (18.1%) of repairs and negative answers for 689 (81.9%). Of the 152 patients who answered "yes" to either of the questions regarding recurrence and/or current pain, 91 declined clinical appointments, 24 could not be contacted by phone, and 37 underwent physical examination. Of the 312 patients who did not return the questionnaire, eight had died, 124 did not want to be visited, and 180 could not be located. The recurrence rate was 2.7% and the chronic pain rate 5.9%. CONCLUSIONS Repeat mailing was a useful strategy to improve response to self-administered postal questionnaires on hernia surgery quality assessment. However, contacting the group that responded with positive questionnaire answers was a poorly effective way to encourage subjects to come for a physical examination.
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Affiliation(s)
- M López-Cano
- Department of Surgery, Hospital General Universitari Vall d'Hebron, Autonomous University of Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain.
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Verges R, Benavente S, Garcia A, Hermosilla E, Casanova N, Ramos M, Gil-Moreno A, Giralt J. 2691. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Rodriguez-Frias F, Jardi R, Buti M, Schaper M, Hermosilla E, Valdes A, Allende H, Martell M, Esteban R, Guardia J. Hepatitis B virus genotypes and G1896A precore mutation in 486 Spanish patients with acute and chronic HBV infection. J Viral Hepat 2006; 13:343-50. [PMID: 16637866 DOI: 10.1111/j.1365-2893.2005.00691.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This study aims to determine the prevalence of hepatitis B virus (HBV) genotypes (A-F) and their association with the G1896A precore mutation in 486 patients positive for HBV surface antigen. Genotypes were determined by RFLP and precore mutation by real-time PCR. Genotypes D (48.1%) and A (39.5%) were the most common, followed by F (4.1%) and B, C and E (<1%). The A to D ratio (A:D) was 1.4 in HBeAg+ chronic hepatitis B (CHB), 0.6 in HBeAg- CHB and 1.4 in HBeAg- inactive carriers. Distribution of these genotypes was different between HBeAg+ CHB and HBeAg- CHB (P = 0.02), and between HBeAg- CHB and HBeAg- inactive carriers (P = 0.009). Genotype A was the most prevalent in HBeAg+ CHB with elevated alanine aminotransferase (ALT) (68.6%) and genotype D in HBeAg+ CHB with fluctuating ALT (60.7%). There was a difference in genotype prevalence between chronic and acute infection (P = 0.03). The precore mutant correlated with high levels of HBV-DNA in genotype d HBeAg- CHB. Genotype D is not as highly prevalent in Spanish patients as would be expected in a Mediterranean area. The unequal prevalence of genotypes between acute and chronic infection suggests that genotype A is associated with a higher tendency to cause chronic infection.
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Affiliation(s)
- F Rodriguez-Frias
- Department of Biochemistry, Hospital Universitario Vall d'Hebron, Barcelona, Spain
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de Gracia J, Mata F, Alvarez A, Casals T, Gatner S, Vendrell M, de la Rosa D, Guarner L, Hermosilla E. Genotype-phenotype correlation for pulmonary function in cystic fibrosis. Thorax 2005; 60:558-63. [PMID: 15994263 PMCID: PMC1747467 DOI: 10.1136/thx.2004.031153] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Since the CFTR gene was cloned, more than 1000 mutations have been identified. To date, a clear relationship has not been established between genotype and the progression of lung damage. A study was undertaken of the relationship between genotype, progression of lung disease, and survival in adult patients with cystic fibrosis (CF). METHODS A prospective cohort of adult patients with CF and two CFTR mutations followed up in an adult cystic fibrosis unit was analysed. Patients were classified according to functional effects of classes of CFTR mutations and were grouped based on the CFTR molecular position on the epithelial cell surface (I-II/I-II, I-II/III-V). Spirometric values, progression of lung disease, probability of survival, and clinical characteristics were analysed between groups. RESULTS Seventy four patients were included in the study. Patients with genotype I-II/I-II had significantly lower current spirometric values (p < 0.001), greater loss of pulmonary function (p < 0.04), a higher proportion of end-stage lung disease (p < 0.001), a higher risk of suffering from moderate to severe lung disease (odds ratio 7.12 (95% CI 1.3 to 40.5)) and a lower probability of survival than patients with genotype I-II/III, I-II/IV and I-II/V (p < 0.001). CONCLUSIONS The presence of class I or II mutations on both chromosomes is associated with worse respiratory disease and a lower probability of survival.
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Affiliation(s)
- J de Gracia
- Department of Pneumology, Hospital general Vall d'Hebron, Barcelona, Spain.
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19
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Navalpotro B, Giralt J, Cerezo L, Hermosilla E, de las Heras M, Espin E, Reyes V, Naval J, Armengol M, de Torres I. Prognostic significance of cyclooxigenase-2 (COX-2), vascular endotelial growth factor (VEGF) in patients with rectal cancer treated with preoperative radiotherapy. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Goizet C, Yaou RB, Demay L, Richard P, Bouillot S, Rouanet M, Hermosilla E, Le Masson G, Lagueny A, Bonne G, Ferrer X. A new mutation of the lamin A/C gene leading to autosomal dominant axonal neuropathy, muscular dystrophy, cardiac disease, and leuconychia. J Med Genet 2004; 41:e29. [PMID: 14985400 PMCID: PMC1735710 DOI: 10.1136/jmg.2003.013383] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Crispi F, Llurba E, Pedrero C, Carreras E, Higueras T, Hermosilla E, Cabero L, Gratacós E. Curvas de normalidad de la longitud cervical ecográfica según edad gestacional en población española. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/s0304-5013(04)76002-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hermosilla E, Lagueny A, Vital C, Vital A, Ferrer X, Steck A, Julien J. Peripheral neuropathy associated with monoclonal IgG of undetermined significance: clinical, electrophysiologic, pathologic and therapeutic study of 14 cases. J Peripher Nerv Syst 2000; 1:139-48. [PMID: 10975722] [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: 02/17/2023]
Abstract
Fourteen patients with peripheral neuropathy and monoclonal IgG of undetermined significance are reported with a retrospective study of the clinical features, electrophysiologic and sural nerve biopsy findings. There were two groups. Five patients had a relapsing chronic sensorimotor polyneuropathy with clinical (5/5), electrophysiologic (4/5) and pathologic (5/5) features compatible with chronic inflammatory demyelinating polyneuropathies (CIDP). The nine others had a slowly progressive sensory (5/9) (SPNP) or sensorimotor (4/9) (SMPNP) axonal polyneuropathy. Four patients of the first group were treated with intravenous human immunoglobulin (400 mg/kg/day for five days) with significant clinical improvement. The motor conduction velocities and distal latencies of two of these patients improved following treatment, thus matching the clinical improvement. Our results on peripheral nerve biopsies confirm the differentiation of patients with CIDP from those with SMPNP and SPNP. There was no specific immunologic serologic reactivity in any of the cases.
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Affiliation(s)
- E Hermosilla
- Department of Neurology, Bordeaux II University, France
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Vital A, Lagueny A, Julien J, Ferrer X, Barat M, Hermosilla E, Rouanet-Larrivière M, Henry P, Bredin A, Louiset P, Herbelleau T, Boisseau C, Guiraud-Chaumeil B, Steck A, Vital C. Chronic inflammatory demyelinating polyneuropathy associated with dysglobulinemia: a peripheral nerve biopsy study in 18 cases. Acta Neuropathol 2000; 100:63-8. [PMID: 10912921 DOI: 10.1007/s004010051193] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The possible occurrence of chronic inflammatory demyelinating polyneuropathy (CIDP) in association with an identified dysglobulinemic status is recognized and a causal relationship between the two has been suggested. We had the opportunity to study 18 patients presenting with CIDP and dysglobulinemia. This was an IgG monoclonal gammopathy (IgG MG) in 8 cases, an IgM monoclonal gammopathy (IgM MG) in 8, an IgG-IgM biclonal gammopathy in 1 case and an IgM monoclonal cryoglobulinemia in another. A peripheral nerve biopsy specimen was available for all patients and the morphological findings in these specimens in the cases of CIDP with IgG MG or cryoglobulin did not differ from those without, whereas characteristic features were observed in the cases of CIDP with IgM MG and anti-myelin associated glycoprotein activity.
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Affiliation(s)
- A Vital
- Department of Neuropathology, Victor Segalen University, Bordeaux II Cedex, France
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Arnaud A, Hermosilla E, Ferrer X, Devoize JL, Rajabally Y, Lagueny A. [Case of superficial hemosiderosis of the central nervous system treated with trientine]. Rev Neurol (Paris) 1998; 154:243-5. [PMID: 9773049] [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: 02/09/2023]
Abstract
A 58-year-old woman, with recurrent headaches, exhibited cerebellar alaxic gait, anosmia, deafness and a pyramidal syndrome, with a progressive onset. In cerebrospinal fluid there was erythrocytes and siderophages. MRI on T2-weighted images revealed a marginal hypo-intensity, leading to the diagnostic of superficial siderosis of the central nervous system. None haemorragic lesion was found. The patient was given Trientine. Unfortunately she worsened on later examinations.
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Affiliation(s)
- A Arnaud
- Service de Neurologie, C.H.U. Hôpital Haut-Lévêque, Pessac
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25
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Arnaud A, Lagueny A, Hermosilla E, Ferrer X, Vital C, Julien J. [Multineuritis in essential hypereosinophilia syndrome]. Rev Neurol (Paris) 1997; 153:785-9. [PMID: 9686271] [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: 02/08/2023]
Abstract
A 72-old-man with a dramatic weight loss, exhibited a mononeuritis multiplex of subacute onset, and myalgia. There was hypoesthesia and weakness on median and ulnar nerves bilaterally, and weakness on left femoral nerve. Electrodiagnostical studies showed an axonal pattern of neuropathy. There was a considerable hypereosinophilia on blood count without any aetiologia found on exhaustive explorations. The idiopathic hypereosinophilic syndrome with a mononeuritis multiplex was suggested. Histological findings were an acute myelino-axonal degeneration with endoneural oedema, without vasculitis nor eosinophil cell on nerve-biopsy. Dramatic improvement occurred with corticosteroids and immunosuppressive treatment.
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Affiliation(s)
- A Arnaud
- Service de Neurologie, CHU Hôpital Haut-Lévêque, Pessac
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Abstract
Muscular hypertrophy, rarely reported in muscular sarcoidosis, is usually associated with the myositic, myopathic and nodular types. We report a case with an isolated localised muscular hypertrophy simulating a tumor formation developed after repetitive efforts, in a familial context of sarcoidosis. MRI shows muscular high intensity lesions in the thighs and calves, and after treatment, central areas of low intensity signal. Muscular biopsy confirms diagnosis of sarcoidosis. Gallium-67 scintigraphy shows systemic extension of disease. This case highlights the usefulness of recent imaging techniques in diagnostic strategy and follow up.
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Affiliation(s)
- E Hermosilla
- Service de neurologie, hôpital du Haut-Lévêque, USN, Pessac, France
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