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Adepoju FO, Sokolova KV, Gette IF, Danilova IG, Tsurkan MV, Mondragon AC, Kovaleva EG, Miranda JM. Protective Effect of Betulin on Streptozotocin-Nicotinamide-Induced Diabetes in Female Rats. Int J Mol Sci 2024; 25:2166. [PMID: 38396842 PMCID: PMC10888537 DOI: 10.3390/ijms25042166] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/03/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Type 2 diabetes is characterized by hyperglycemia and a relative loss of β-cell function. Our research investigated the antidiabetic potential of betulin, a pentacyclic triterpenoid found primarily in birch bark and, intriguingly, in a few marine organisms. Betulin has been shown to possess diverse biological activities, including antioxidant and antidiabetic activities; however, no studies have fully explored the effects of betulin on the pancreas and pancreatic islets. In this study, we investigated the effect of betulin on streptozotocin-nicotinamide (STZ)-induced diabetes in female Wistar rats. Betulin was prepared as an emulsion, and intragastric treatments were administered at doses of 20 and 50 mg/kg for 28 days. The effect of treatment was assessed by analyzing glucose parameters such as fasting blood glucose, hemoglobin A1C, and glucose tolerance; hepatic and renal biomarkers; lipid peroxidation; antioxidant enzymes; immunohistochemical analysis; and hematological indices. Administration of betulin improved the glycemic response and decreased α-amylase activity in diabetic rats, although insulin levels and homeostatic model assessment for insulin resistance (HOMA-IR) scores remained unchanged. Furthermore, betulin lowered the levels of hepatic biomarkers (aspartate aminotransferase, alanine aminotransferase, and alpha-amylase activities) and renal biomarkers (urea and creatine), in addition to improving glutathione levels and preventing the elevation of lipid peroxidation in diabetic animals. We also found that betulin promoted the regeneration of β-cells in a dose-dependent manner but did not have toxic effects on the pancreas. In conclusion, betulin at a dose of 50 mg/kg exerts a pronounced protective effect against cytolysis, diabetic nephropathy, and damage to the acinar pancreas and may be a potential treatment option for diabetes.
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Affiliation(s)
- Feyisayo O. Adepoju
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia; (F.O.A.); (K.V.S.); (I.F.G.); (I.G.D.)
| | - Ksenia V. Sokolova
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia; (F.O.A.); (K.V.S.); (I.F.G.); (I.G.D.)
- Institute of Immunology and Physiology, Russian Academy of Sciences, 620049 Yekaterinburg, Russia
| | - Irina F. Gette
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia; (F.O.A.); (K.V.S.); (I.F.G.); (I.G.D.)
- Institute of Immunology and Physiology, Russian Academy of Sciences, 620049 Yekaterinburg, Russia
| | - Irina G. Danilova
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia; (F.O.A.); (K.V.S.); (I.F.G.); (I.G.D.)
- Institute of Immunology and Physiology, Russian Academy of Sciences, 620049 Yekaterinburg, Russia
| | | | - Alicia C. Mondragon
- Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade da Santiago de Compostela, 27002 Lugo, Spain;
| | - Elena G. Kovaleva
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia; (F.O.A.); (K.V.S.); (I.F.G.); (I.G.D.)
| | - Jose Manuel Miranda
- Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade da Santiago de Compostela, 27002 Lugo, Spain;
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Amara J, Itani T, Hajal J, Bakhos JJ, Saliba Y, Aboushanab SA, Kovaleva EG, Fares N, Mondragon AC, Miranda JM. Circadian Rhythm Perturbation Aggravates Gut Microbiota Dysbiosis in Dextran Sulfate Sodium-Induced Colitis in Mice. Nutrients 2024; 16:247. [PMID: 38257139 PMCID: PMC10819604 DOI: 10.3390/nu16020247] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Circadian rhythm disruption is increasingly considered an environmental risk factor for the development and exacerbation of inflammatory bowel disease. We have reported in a previous study that nychthemeral dysregulation is associated with an increase in intestinal barrier permeability and inflammation in mice with dextran sulfate sodium (DSS)-induced colitis. To investigate the effect of circadian rhythm disruption on the composition and diversity of the gut microbiota (GM), sixty male C57BL/6J mice were initially divided to two groups, with the shifted group (n = 30) exposed to circadian shifts for three months and the non-shifted group (n = 30) kept under a normal light-dark cycle. The mice of the shifted group were cyclically housed for five days under the normal 12:12 h light-dark cycle, followed by another five days under a reversed light-dark cycle. At the end of the three months, a colitis was induced by 2% DSS given in the drinking water of 30 mice. Animals were then divided into four groups (n = 15 per group): sham group non-shifted (Sham-NS), sham group shifted (Sham-S), DSS non-shifted (DSS-NS) and DSS shifted (DSS-S). Fecal samples were collected from rectal content to investigate changes in GM composition via DNA extraction, followed by high-throughput sequencing of the bacterial 16S rRNA gene. The mouse GM was dominated by three phyla: Firmicutes, Bacteroidetes and Actinobacteria. The Firmicutes/Bacteroidetes ratio decreased in mice with induced colitis. The richness and diversity of the GM were reduced in the colitis group, especially in the group with inverted circadian rhythm. Moreover, the GM composition was modified in the inverted circadian rhythm group, with an increase in Alloprevotella, Turicibacter, Bacteroides and Streptococcus genera. Circadian rhythm inversion exacerbates GM dysbiosis to a less rich and diversified extent in a DSS-induced colitis model. These findings show possible interplay between circadian rhythm disruption, GM dynamics and colitis pathogenesis.
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Affiliation(s)
- Joseph Amara
- Laboratoire de Recherche en Physiologie et Physiopathologie, Pôle Technologie Santé, Faculté de Médecine, Université Saint Joseph, Beirut 1104 2020, Lebanon; (J.A.); (J.H.); (Y.S.)
| | - Tarek Itani
- Laboratoire de Microbiologie, Faculté de Pharmacie, Université Saint Joseph, Beirut 1104 2020, Lebanon;
| | - Joelle Hajal
- Laboratoire de Recherche en Physiologie et Physiopathologie, Pôle Technologie Santé, Faculté de Médecine, Université Saint Joseph, Beirut 1104 2020, Lebanon; (J.A.); (J.H.); (Y.S.)
| | - Jules-Joel Bakhos
- Laboratoire de Recherche en Physiologie et Physiopathologie, Pôle Technologie Santé, Faculté de Médecine, Université Saint Joseph, Beirut 1104 2020, Lebanon; (J.A.); (J.H.); (Y.S.)
| | - Youakim Saliba
- Laboratoire de Recherche en Physiologie et Physiopathologie, Pôle Technologie Santé, Faculté de Médecine, Université Saint Joseph, Beirut 1104 2020, Lebanon; (J.A.); (J.H.); (Y.S.)
| | - Saied A. Aboushanab
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Mira 19, Yekaterinburg 620002, Russia; (S.A.A.); (E.G.K.)
| | - Elena G. Kovaleva
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Mira 19, Yekaterinburg 620002, Russia; (S.A.A.); (E.G.K.)
| | - Nassim Fares
- Laboratoire de Recherche en Physiologie et Physiopathologie, Pôle Technologie Santé, Faculté de Médecine, Université Saint Joseph, Beirut 1104 2020, Lebanon; (J.A.); (J.H.); (Y.S.)
| | - Alicia C. Mondragon
- Laboratorio de Higiene, Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade da Santiago de Compostela, 27002 Lugo, Spain;
| | - Jose Manuel Miranda
- Laboratorio de Higiene, Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade da Santiago de Compostela, 27002 Lugo, Spain;
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Sinisterra-Loaiza L, Alonso-Lovera P, Cardelle-Cobas A, Miranda JM, Vázquez BI, Cepeda A. Compliance with Nutritional Recommendations and Gut Microbiota Profile in Galician Overweight/Obese and Normal-Weight Individuals. Nutrients 2023; 15:3418. [PMID: 37571355 PMCID: PMC10420825 DOI: 10.3390/nu15153418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Different research studies have identified specific groups or certain dietary compounds as the onset and progression of obesity and suggested that gut microbiota is a mediator between these compounds and the inflammation associated with pathology. In this study, the objective was to evaluate the dietary intake of 108 overweight (OW), obese (OB), and normal-weight (NW) individuals and to analyze their gut microbiota profile to determine changes and associations with Body Mass Index (BMI) and diet. When individuals were compared by BMI, significant differences in fiber and monounsaturated fatty acids (MUFAs) intake were observed, showing higher adequacy for the NW group. The analysis of gut microbiota showed statistical differences for 18 ASVs; Anaerostipes and Faecalibacterium decreased in the OW/OB group, whereas the genus Oscillospira increased; the genus was also found in the LEFSe analysis as a biomarker for OW/OB. Roseburia faecis was found in a significantly higher proportion of NW individuals and identified as a biomarker for the NW group. Correlation analysis showed that adequation to nutritional recommendation for fiber indicated a higher abundance of Prevotella copri, linearly correlated with F. prausnitzii, Bacteroides caccae, and R. faecis. The same correlation was found for the adequation for MUFAs, with these bacteria being more abundant when the intake was adjusted to or below the recommendations.
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Affiliation(s)
| | | | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene, Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade da Santiago de Compostela, 27002 Lugo, Spain; (L.S.-L.); (P.A.-L.); (J.M.M.); (B.I.V.); (A.C.)
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Lopez-Santamarina A, Mondragon ADC, Cardelle-Cobas A, Santos EM, Porto-Arias JJ, Cepeda A, Miranda JM. Effects of Unconventional Work and Shift Work on the Human Gut Microbiota and the Potential of Probiotics to Restore Dysbiosis. Nutrients 2023; 15:3070. [PMID: 37447396 DOI: 10.3390/nu15133070] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 06/19/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/15/2023] Open
Abstract
The work environment is a factor that can significantly influence the composition and functionality of the gut microbiota of workers, in many cases leading to gut dysbiosis that will result in serious health problems. The aim of this paper was to provide a compilation of the different studies that have examined the influence of jobs with unconventional work schedules and environments on the gut microbiota of workers performing such work. As a possible solution, probiotic supplements, via modulation of the gut microbiota, can moderate the effects of sleep disturbance on the immune system, as well as restore the dysbiosis produced. Rotating shift work has been found to be associated with an increase in the risk of various metabolic diseases, such as obesity, metabolic syndrome, and type 2 diabetes. Sleep disturbance or lack of sleep due to night work is also associated with metabolic diseases. In addition, sleep disturbance induces a stress response, both physiologically and psychologically, and disrupts the healthy functioning of the gut microbiota, thus triggering an inflammatory state. Other workers, including military, healthcare, or metallurgy workers, as well as livestock farmers or long-travel seamen, work in environments and schedules that can significantly affect their gut microbiota.
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Affiliation(s)
- Aroa Lopez-Santamarina
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Alicia Del Carmen Mondragon
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Eva Maria Santos
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km. 4.5, Pachuca 42076, Hidalgo, Mexico
| | - Jose Julio Porto-Arias
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Alberto Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Jose Manuel Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
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5
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Abe H, Abe S, Acciari VA, Aniello T, Ansoldi S, Antonelli LA, Arbet Engels A, Arcaro C, Artero M, Asano K, Baack D, Babić A, Baquero A, Barres de Almeida U, Barrio JA, Batković I, Baxter J, Becerra González J, Bednarek W, Bernardini E, Bernardos M, Berti A, Besenrieder J, Bhattacharyya W, Bigongiari C, Biland A, Blanch O, Bonnoli G, Bošnjak Ž, Burelli I, Busetto G, Carosi R, Carretero-Castrillo M, Ceribella G, Chai Y, Chilingarian A, Cikota S, Colombo E, Contreras JL, Cortina J, Covino S, D'Amico G, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Del Popolo A, Delfino M, Delgado J, Delgado Mendez C, Depaoli D, Di Pierro F, Di Venere L, Do Souto Espiñeira E, Dominis Prester D, Donini A, Dorner D, Doro M, Elsaesser D, Emery G, Fallah Ramazani V, Fariña L, Fattorini A, Font L, Fruck C, Fukami S, Fukazawa Y, García López RJ, Garczarczyk M, Gasparyan S, Gaug M, Giesbrecht Paiva JG, Giglietto N, Giordano F, Gliwny P, Godinović N, Green JG, Green D, Hadasch D, Hahn A, Hassan T, Heckmann L, Herrera J, Hrupec D, Hütten M, Imazawa R, Inada T, Iotov R, Ishio K, Jiménez Martínez I, Jormanainen J, Kerszberg D, Kobayashi Y, Kubo H, Kushida J, Lamastra A, Lelas D, Leone F, Lindfors E, Linhoff L, Lombardi S, Longo F, López-Coto R, López-Moya M, López-Oramas A, Loporchio S, Lorini A, Lyard E, Machado de Oliveira Fraga B, Majumdar P, Makariev M, Maneva G, Mang N, Manganaro M, Mangano S, Mannheim K, Mariotti M, Martínez M, Mas Aguilar A, Mazin D, Menchiari S, Mender S, Mićanović S, Miceli D, Miener T, Miranda JM, Mirzoyan R, Molina E, Mondal HA, Moralejo A, Morcuende D, Moreno V, Nakamori T, Nanci C, Nava L, Neustroev V, Nievas Rosillo M, Nigro C, Nilsson K, Nishijima K, Njoh Ekoume T, Noda K, Nozaki S, Ohtani Y, Oka T, Otero-Santos J, Paiano S, Palatiello M, Paneque D, Paoletti R, Paredes JM, Pavletić L, Persic M, Pihet M, Podobnik F, Prada Moroni PG, Prandini E, Principe G, Priyadarshi C, Puljak I, Rhode W, Ribó M, Rico J, Righi C, Rugliancich A, Sahakyan N, Saito T, Sakurai S, Satalecka K, Saturni FG, Schleicher B, Schmidt K, Schmuckermaier F, Schubert JL, Schweizer T, Sitarek J, Sliusar V, Sobczynska D, Spolon A, Stamerra A, Strišković J, Strom D, Strzys M, Suda Y, Surić T, Takahashi M, Takeishi R, Tavecchio F, Temnikov P, Terauchi K, Terzić T, Teshima M, Tosti L, Truzzi S, Tutone A, Ubach S, van Scherpenberg J, Vazquez Acosta M, Ventura S, Verguilov V, Viale I, Vigorito CF, Vitale V, Vovk I, Walter R, Will M, Wunderlich C, Yamamoto T, Zarić D, Hiroshima N, Kohri K. Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC. Phys Rev Lett 2023; 130:061002. [PMID: 36827578 DOI: 10.1103/physrevlett.130.061002] [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] [Received: 06/10/2022] [Revised: 11/02/2022] [Accepted: 12/15/2022] [Indexed: 06/18/2023]
Abstract
Linelike features in TeV γ rays constitute a "smoking gun" for TeV-scale particle dark matter and new physics. Probing the Galactic Center region with ground-based Cherenkov telescopes enables the search for TeV spectral features in immediate association with a dense dark matter reservoir at a sensitivity out of reach for satellite γ-ray detectors, and direct detection and collider experiments. We report on 223 hours of observations of the Galactic Center region with the MAGIC stereoscopic telescope system reaching γ-ray energies up to 100 TeV. We improved the sensitivity to spectral lines at high energies using large-zenith-angle observations and a novel background modeling method within a maximum-likelihood analysis in the energy domain. No linelike spectral feature is found in our analysis. Therefore, we constrain the cross section for dark matter annihilation into two photons to ⟨σv⟩≲5×10^{-28} cm^{3} s^{-1} at 1 TeV and ⟨σv⟩≲1×10^{-25} cm^{3} s^{-1} at 100 TeV, achieving the best limits to date for a dark matter mass above 20 TeV and a cuspy dark matter profile at the Galactic Center. Finally, we use the derived limits for both cuspy and cored dark matter profiles to constrain supersymmetric wino models.
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Affiliation(s)
- H Abe
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - S Abe
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - V A Acciari
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - T Aniello
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - S Ansoldi
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - L A Antonelli
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A Arbet Engels
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - C Arcaro
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M Artero
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - K Asano
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - D Baack
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - A Babić
- Croatian MAGIC Group: University of Zagreb, Faculty of Electrical Engineering and Computing (FER), 10000 Zagreb, Croatia
| | - A Baquero
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - U Barres de Almeida
- Centro Brasileiro de Pesquisas Físicas (CBPF), 22290-180 URCA, Rio de Janeiro (RJ), Brazil
| | - J A Barrio
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - I Batković
- Università di Padova and INFN, I-35131 Padova, Italy
| | - J Baxter
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - J Becerra González
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - W Bednarek
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - E Bernardini
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M Bernardos
- Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s/n, 18008 Granada, Spain
| | - A Berti
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - J Besenrieder
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - W Bhattacharyya
- Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
| | - C Bigongiari
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A Biland
- ETH Zürich, CH-8093 Zürich, Switzerland
| | - O Blanch
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - G Bonnoli
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - Ž Bošnjak
- Croatian MAGIC Group: University of Zagreb, Faculty of Electrical Engineering and Computing (FER), 10000 Zagreb, Croatia
| | - I Burelli
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - G Busetto
- Università di Padova and INFN, I-35131 Padova, Italy
| | - R Carosi
- Università di Pisa and INFN Pisa, I-56126 Pisa, Italy
| | | | - G Ceribella
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - Y Chai
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - A Chilingarian
- Armenian MAGIC Group: A. Alikhanyan National Science Laboratory, 0036 Yerevan, Armenia
| | - S Cikota
- Croatian MAGIC Group: University of Zagreb, Faculty of Electrical Engineering and Computing (FER), 10000 Zagreb, Croatia
| | - E Colombo
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - J L Contreras
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - J Cortina
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - S Covino
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - G D'Amico
- Department for Physics and Technology, University of Bergen, Norway
| | - V D'Elia
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - P Da Vela
- Università di Pisa and INFN Pisa, I-56126 Pisa, Italy
| | - F Dazzi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A De Angelis
- Università di Padova and INFN, I-35131 Padova, Italy
| | - B De Lotto
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - A Del Popolo
- INFN MAGIC Group: INFN Sezione di Catania and Dipartimento di Fisica e Astronomia, University of Catania, I-95123 Catania, Italy
| | - M Delfino
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - J Delgado
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - C Delgado Mendez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - D Depaoli
- INFN MAGIC Group: INFN Sezione di Torino and Università degli Studi di Torino, I-10125 Torino, Italy
| | - F Di Pierro
- INFN MAGIC Group: INFN Sezione di Torino and Università degli Studi di Torino, I-10125 Torino, Italy
| | - L Di Venere
- INFN MAGIC Group: INFN Sezione di Bari and Dipartimento Interateneo di Fisica dell'Università e del Politecnico di Bari, I-70125 Bari, Italy
| | - E Do Souto Espiñeira
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - D Dominis Prester
- Croatian MAGIC Group: University of Rijeka, Department of Physics, 51000 Rijeka, Croatia
| | - A Donini
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - D Dorner
- Universität Würzburg, D-97074 Würzburg, Germany
| | - M Doro
- Università di Padova and INFN, I-35131 Padova, Italy
| | - D Elsaesser
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - G Emery
- University of Geneva, Chemin d'Ecogia 16, CH-1290 Versoix, Switzerland
| | - V Fallah Ramazani
- Finnish MAGIC Group: Finnish Centre for Astronomy with ESO, University of Turku, FI-20014 Turku, Finland
| | - L Fariña
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - A Fattorini
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - L Font
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - C Fruck
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - S Fukami
- ETH Zürich, CH-8093 Zürich, Switzerland
| | - Y Fukazawa
- Japanese MAGIC Group: Physics Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 739-8526 Hiroshima, Japan
| | - R J García López
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - M Garczarczyk
- Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
| | - S Gasparyan
- Armenian MAGIC Group: ICRANet-Armenia at NAS RA, 0019 Yerevan, Armenia
| | - M Gaug
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - J G Giesbrecht Paiva
- Centro Brasileiro de Pesquisas Físicas (CBPF), 22290-180 URCA, Rio de Janeiro (RJ), Brazil
| | - N Giglietto
- INFN MAGIC Group: INFN Sezione di Bari and Dipartimento Interateneo di Fisica dell'Università e del Politecnico di Bari, I-70125 Bari, Italy
| | - F Giordano
- INFN MAGIC Group: INFN Sezione di Bari and Dipartimento Interateneo di Fisica dell'Università e del Politecnico di Bari, I-70125 Bari, Italy
| | - P Gliwny
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - N Godinović
- Croatian MAGIC Group: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), 21000 Split, Croatia
| | - J G Green
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - D Green
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - D Hadasch
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - A Hahn
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - T Hassan
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - L Heckmann
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - J Herrera
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - D Hrupec
- Croatian MAGIC Group: Josip Juraj Strossmayer University of Osijek, Department of Physics, 31000 Osijek, Croatia
| | - M Hütten
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - R Imazawa
- Japanese MAGIC Group: Physics Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 739-8526 Hiroshima, Japan
| | - T Inada
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - R Iotov
- Universität Würzburg, D-97074 Würzburg, Germany
| | - K Ishio
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - I Jiménez Martínez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - J Jormanainen
- Finnish MAGIC Group: Finnish Centre for Astronomy with ESO, University of Turku, FI-20014 Turku, Finland
| | - D Kerszberg
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - Y Kobayashi
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - H Kubo
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - J Kushida
- Japanese MAGIC Group: Department of Physics, Tokai University, Hiratsuka, 259-1292 Kanagawa, Japan
| | - A Lamastra
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - D Lelas
- Croatian MAGIC Group: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), 21000 Split, Croatia
| | - F Leone
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - E Lindfors
- Finnish MAGIC Group: Finnish Centre for Astronomy with ESO, University of Turku, FI-20014 Turku, Finland
| | - L Linhoff
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - S Lombardi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - F Longo
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - R López-Coto
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M López-Moya
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - A López-Oramas
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - S Loporchio
- INFN MAGIC Group: INFN Sezione di Bari and Dipartimento Interateneo di Fisica dell'Università e del Politecnico di Bari, I-70125 Bari, Italy
| | - A Lorini
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - E Lyard
- University of Geneva, Chemin d'Ecogia 16, CH-1290 Versoix, Switzerland
| | | | - P Majumdar
- Saha Institute of Nuclear Physics, A CI of Homi Bhabha National Institute, Kolkata 700064, West Bengal, India
| | - M Makariev
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - G Maneva
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - N Mang
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - M Manganaro
- Croatian MAGIC Group: University of Rijeka, Department of Physics, 51000 Rijeka, Croatia
| | - S Mangano
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - K Mannheim
- Universität Würzburg, D-97074 Würzburg, Germany
| | - M Mariotti
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M Martínez
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - A Mas Aguilar
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - D Mazin
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - S Menchiari
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - S Mender
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - S Mićanović
- Croatian MAGIC Group: University of Rijeka, Department of Physics, 51000 Rijeka, Croatia
| | - D Miceli
- Università di Padova and INFN, I-35131 Padova, Italy
| | - T Miener
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - J M Miranda
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - R Mirzoyan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - E Molina
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - H A Mondal
- Saha Institute of Nuclear Physics, A CI of Homi Bhabha National Institute, Kolkata 700064, West Bengal, India
| | - A Moralejo
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - D Morcuende
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - V Moreno
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - T Nakamori
- Japanese MAGIC Group: Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - C Nanci
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - L Nava
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - V Neustroev
- Finnish MAGIC Group: Space Physics and Astronomy Research Unit, University of Oulu, FI-90014 Oulu, Finland
| | - M Nievas Rosillo
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - C Nigro
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - K Nilsson
- Finnish MAGIC Group: Finnish Centre for Astronomy with ESO, University of Turku, FI-20014 Turku, Finland
| | - K Nishijima
- Japanese MAGIC Group: Department of Physics, Tokai University, Hiratsuka, 259-1292 Kanagawa, Japan
| | - T Njoh Ekoume
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - K Noda
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - S Nozaki
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - Y Ohtani
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - T Oka
- Japanese MAGIC Group: Department of Physics, Kyoto University, 606-8502 Kyoto, Japan
| | - J Otero-Santos
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - S Paiano
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - M Palatiello
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - D Paneque
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - R Paoletti
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - J M Paredes
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - L Pavletić
- Croatian MAGIC Group: University of Rijeka, Department of Physics, 51000 Rijeka, Croatia
| | - M Persic
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - M Pihet
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - F Podobnik
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | | | - E Prandini
- Università di Padova and INFN, I-35131 Padova, Italy
| | - G Principe
- Università di Udine and INFN Trieste, I-33100 Udine, Italy
| | - C Priyadarshi
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - I Puljak
- Croatian MAGIC Group: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), 21000 Split, Croatia
| | - W Rhode
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - M Ribó
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - J Rico
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - C Righi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A Rugliancich
- Università di Pisa and INFN Pisa, I-56126 Pisa, Italy
| | - N Sahakyan
- Armenian MAGIC Group: ICRANet-Armenia at NAS RA, 0019 Yerevan, Armenia
| | - T Saito
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - S Sakurai
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - K Satalecka
- Finnish MAGIC Group: Finnish Centre for Astronomy with ESO, University of Turku, FI-20014 Turku, Finland
| | - F G Saturni
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | | | - K Schmidt
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | | | - J L Schubert
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - T Schweizer
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - J Sitarek
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - V Sliusar
- University of Geneva, Chemin d'Ecogia 16, CH-1290 Versoix, Switzerland
| | - D Sobczynska
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - A Spolon
- Università di Padova and INFN, I-35131 Padova, Italy
| | - A Stamerra
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - J Strišković
- Croatian MAGIC Group: Josip Juraj Strossmayer University of Osijek, Department of Physics, 31000 Osijek, Croatia
| | - D Strom
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - M Strzys
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - Y Suda
- Japanese MAGIC Group: Physics Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 739-8526 Hiroshima, Japan
| | - T Surić
- Croatian MAGIC Group: Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - M Takahashi
- Japanese MAGIC Group: Institute for Space-Earth Environmental Research and Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, 464-6801 Nagoya, Japan
| | - R Takeishi
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - F Tavecchio
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - P Temnikov
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - K Terauchi
- Japanese MAGIC Group: Department of Physics, Kyoto University, 606-8502 Kyoto, Japan
| | - T Terzić
- Croatian MAGIC Group: University of Rijeka, Department of Physics, 51000 Rijeka, Croatia
| | - M Teshima
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - L Tosti
- INFN MAGIC Group: INFN Sezione di Perugia, I-06123 Perugia, Italy
| | - S Truzzi
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - A Tutone
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - S Ubach
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | | | - M Vazquez Acosta
- Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna, Tenerife, Spain
| | - S Ventura
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - V Verguilov
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - I Viale
- Università di Padova and INFN, I-35131 Padova, Italy
| | - C F Vigorito
- INFN MAGIC Group: INFN Sezione di Torino and Università degli Studi di Torino, I-10125 Torino, Italy
| | - V Vitale
- INFN MAGIC Group: INFN Roma Tor Vergata, I-00133 Roma, Italy
| | - I Vovk
- Japanese MAGIC Group: Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, 277-8582 Chiba, Japan
| | - R Walter
- University of Geneva, Chemin d'Ecogia 16, CH-1290 Versoix, Switzerland
| | - M Will
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - C Wunderlich
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - T Yamamoto
- Japanese MAGIC Group: Department of Physics, Konan University, Kobe, Hyogo 658-8501, Japan
| | - D Zarić
- Croatian MAGIC Group: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), 21000 Split, Croatia
| | - N Hiroshima
- Department of Physics, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
- RIKEN iTHEMS, Wako, Saitama 351-0198, Japan
| | - K Kohri
- Theory Center, IPNS, KEK, Tsukuba, Ibaraki 305-0801, Japan
- The Graduate University for Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Kavli IPMU (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
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Lopez-Santamarina A, Cardelle-Cobas A, Lamas A, Mondragon-Portocarrero A, Cepeda A, Miranda JM. Nutritional composition, heavy metal content and in vitro effect on the human gut microbiota of Talitrus saltator, an underutilized crustacean from the Atlantic coast. Front Nutr 2022; 9:943133. [PMID: 36313116 PMCID: PMC9608505 DOI: 10.3389/fnut.2022.943133] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, an undervalued marine crustacean (Talitrus saltator) was characterized in terms of nutritional and heavy metal composition and its potential to affect human gut microbiota. Nutritional analysis of this crustacean revealed that it complies with the criteria established in European legislation to include nutritional claims in their labeling, such as "source of fiber," "low in fat," "low in sugars" and "high in protein." The analysis of the heavy metal content did not reveal any risk derived from the presence of Cd, Hg, or Pb, whereas essential metals contained in 100 g exceeded the minimum daily requirements recommended in Europe for Zn (19.78 mg/kg), Cu (2.28 mg/kg), and Fe (32.96 mg/kg). Using an in vitro system, the effect of T. saltator on the human colonic microbiota shows some beneficial effects, such as fermentation-maintained populations of Bifidobacterium or Lactobacillus, did not increase Firmicutes phylum counts, decreased the Firmicutes/Bacteroidetes ratio, and stimulated 11 metabolic pathways with respect to baseline. These results are unusual in a high protein content-food. However, negative effects were also found in gut microbiota relative proportions, such as an increase in the Proteobacteria phylum and especially some opportunistic bacteria from this phylum, probably due to the antimicrobial effect of chitin on other groups more sensitive to its effect. This work shows for the first time the effect of T. saltator on human colonic microbiota using and in vitro system. The presence of chitin in its composition could provide some beneficial effects by modulating the microbiota, but as T. saltator is a high-protein food, more studies should be carried out showing these benefits.
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Affiliation(s)
| | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
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7
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Omira R, Ramalho RS, Kim J, González PJ, Kadri U, Miranda JM, Carrilho F, Baptista MA. Global Tonga tsunami explained by a fast-moving atmospheric source. Nature 2022; 609:734-740. [PMID: 35697059 PMCID: PMC9492550 DOI: 10.1038/s41586-022-04926-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/02/2022] [Indexed: 11/11/2022]
Abstract
Volcanoes can produce tsunamis by means of earthquakes, caldera and flank collapses, pyroclastic flows or underwater explosions1-4. These mechanisms rarely displace enough water to trigger transoceanic tsunamis. Violent volcanic explosions, however, can cause global tsunamis1,5 by triggering acoustic-gravity waves6-8 that excite the atmosphere-ocean interface. The colossal eruption of the Hunga Tonga-Hunga Ha'apai volcano and ensuing tsunami is the first global volcano-triggered tsunami recorded by modern, worldwide dense instrumentation, thus providing a unique opportunity to investigate the role of air-water-coupling processes in tsunami generation and propagation. Here we use sea-level, atmospheric and satellite data from across the globe, along with numerical and analytical models, to demonstrate that this tsunami was driven by a constantly moving source in which the acoustic-gravity waves radiating from the eruption excite the ocean and transfer energy into it by means of resonance. A direct correlation between the tsunami and the acoustic-gravity waves' arrival times confirms that these phenomena are closely linked. Our models also show that the unusually fast travel times and long duration of the tsunami, as well as its global reach, are consistent with an air-water-coupled source. This coupling mechanism has clear hazard implications, as it leads to higher waves along land masses that rise abruptly from long stretches of deep ocean waters.
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Affiliation(s)
- R Omira
- Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal.
- Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.
| | - R S Ramalho
- School of Earth and Environmental Sciences, Cardiff University, Cardiff, UK
- Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, USA
- Instituto Dom Luiz (IDL) and Departamento de Geologia, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - J Kim
- Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal
| | - P J González
- Volcanology Research Group, Department of Life and Earth Sciences, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (IPNA-CSIC), La Laguna, Canary Islands, Spain
- COMET, Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - U Kadri
- School of Mathematics, Cardiff University, Cardiff, UK
| | - J M Miranda
- Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal
- Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - F Carrilho
- Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal
| | - M A Baptista
- Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Instituto Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa (IPL), Lisbon, Portugal
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8
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Lopez-Santamarina A, Cardelle-Cobas A, Del Carmen Mondragon A, Sinisterra-Loaiza L, Miranda JM, Cepeda A. Evaluation of the potential prebiotic effect of Himanthalia elongata, an Atlantic brown seaweed, in an in vitro model of the human distal colon. Food Res Int 2022; 156:111156. [PMID: 35651022 DOI: 10.1016/j.foodres.2022.111156] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/13/2022] [Accepted: 03/15/2022] [Indexed: 11/28/2022]
Abstract
Until now, although different studies have shown the potential prebiotic effect of seaweed carbohydrates, no studies with the whole seaweeds have been carried out. In addition, the prebiotic effect throughput sequencing remains poorly investigated since most of the published works used qPCR or FISH to estimate bacterial changes. In this work, an in vitro model of the human distal colon was used to determine, for the first time, the potential prebiotic effect of a brown whole seaweed Himanthalia elongata. The whole seaweed was characterized in basis of its nutritional and mineral composition and submitted to the entire gastrointestinal digestion. The prebiotic effect was evaluated by the microbial modulation through 16S rRNA amplicon sequencing, qPCR and short-chain fatty acid analysis. The obtained results indicated that the colonic fraction of H. elongata was used selectively by the Bacteroides genus, more specifically by the specie Bacteoides ovatus, whereas inulin was used mainly by the Parabacteroides genus, being Parabacteroides distasonis the most abundant identified specie. Selective use of inulin by P. distasonis is, therefore, reported by the first time. qPCR analysis shown no significative differences in Bifidobacterium population and a decrease in Lactobacillus along the fermentation assays with both substrates. Regarding to the short-fatty acid production, maximal concentration, 56.11 ± 20.48 mM, was achieved for H. elongata, at 24 h of fermentation whereas for inulin total acid production was 93.66 ± 21.82 mM at 48 h of assay. The metabolic pathways associated with bacterial genera were not significantly different between the two tested substrates. Although more studies are necessary to elucidate the prebiotic character of H. elongata, the results presented in this work are promissory and could open new opportunities of research and application in the area of Nutrition and Food Chemistry.
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Affiliation(s)
- Aroa Lopez-Santamarina
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Alicia Del Carmen Mondragon
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Laura Sinisterra-Loaiza
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Jose Manuel Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Alberto Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain
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9
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Bhandari U, Arulkumar A, Ganeshkumar A, Paramasivam S, Rajaram R, Miranda JM. Metal accumulation and biomineralisation of coastal and mangrove-associated molluscs of Palk Bay, Southeastern India. Mar Pollut Bull 2021; 167:112259. [PMID: 33839569 DOI: 10.1016/j.marpolbul.2021.112259] [Citation(s) in RCA: 1] [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] [Received: 01/02/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
The present study aimed to determine metal accumulation levels in tissue and biomineralisation in shells of 20 species of molluscs (13 gastropods and 7 bivalves) from Palk Bay, India. In most cases, metal concentrations in the tissues were higher than in the shells of the same species collected from same location, meaning that in many cases biomineralisation factors of metal ratios were <1. The highest biomineralisation factor for Cd was detected in Melampus sincaporensis (3.72 ± 0.1) from the Thondi mangrove, for Pb in Cerithidea cingulata (2.51 ± 0.17) from the Vattanam mangrove, for Cu in Melampus sincaporensis (0.88 ± 0.2) from the Thondi mangrove, and for Zn in Cerithidea cingulata (0.93 ± 0.3) from the Devipattinam mangrove. In most cases, metal concentrations were higher than reported in previous studies but were within the maximum limits stated by national and international regulatory agencies. Variations in the biomineralisation factor of metal ratios among the molluscan species likely stems from variations in bioaccumulation efficiency, selectivity of individual organisms, and availability of metals in the mangrove and coastal environments.
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Affiliation(s)
- Uttra Bhandari
- Department of Oceanography and Coastal Area Studies, School of Marine Sciences, Alagappa University, Science Campus, Karaikudi 630 003, Tamil Nadu, India
| | - Abimannan Arulkumar
- Department of Biotechnology, Achariya Arts and Science College (Affiliated to Pondicherry University), Villianur, Puducherry 605 110, India
| | - Arumugam Ganeshkumar
- Department of Marine Science, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India
| | - Sadayan Paramasivam
- Department of Oceanography and Coastal Area Studies, School of Marine Sciences, Alagappa University, Science Campus, Karaikudi 630 003, Tamil Nadu, India.
| | - Rajendran Rajaram
- Department of Marine Science, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India
| | - Jose Manuel Miranda
- Departamento de QuímicaAnalítica, Nutrición y Bromatología, Facultade de Veterinaria, Universidade de Santiago de Compostela, Pabellón 4, Planta Baja, 27002 Lugo, Spain
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10
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Abstract
The handling of blood in vitro is demanding because of ethical, economical and safety issues. Although several Newtonian and non-Newtonian blood analogues are found in the literature, few studies have used particles to mimic red blood cells (RBCs) and built an analogue with similar rheological properties of blood. This work reports the development of a blood analogue suspension composed of polydimethylsiloxane (PDMS) microparticles with an average diameter of ∼7 μm. High throughput production of PDMS particles is possible using a multi-stage membrane emulsification process; up to ∼6 mL of microparticles are manufactured in 3 hours. PDMS particles at a concentration of around 21% (w/w) at 20 °C present steady, oscillatory and extensional rheologies very similar to those of blood under physiological conditions (37 °C and ∼41% hematocrit), making them a good candidate whole blood analogue. Also, flow studies were performed in microchannels with contraction to study the cell-free layer (CFL) formation and particle deformation, achieving good qualitative results. Using the procedure developed, it is possible to obtain blood analogue fluids with a shelf life of at least 6 months.
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Affiliation(s)
- J Carneiro
- CEFT, Transport Phenomena Research Center, Chemical Engineering Department, Faculty of Engineering, University of Porto, 4050-465 Porto, Portugal.
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Lopez-Santamarina A, Gonzalez EG, Lamas A, Mondragon ADC, Regal P, Miranda JM. Probiotics as a Possible Strategy for the Prevention and Treatment of Allergies. A Narrative Review. Foods 2021; 10:foods10040701. [PMID: 33806092 PMCID: PMC8064452 DOI: 10.3390/foods10040701] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 02/06/2023] Open
Abstract
Allergies are an increasing global public health concern, especially for children and people living in urban environments. Allergies impair the quality of life of those who suffer from them, and for this reason, alternatives for the treatment of allergic diseases or reduction in their symptoms are being sought. The main objective of this study was to compile the studies carried out on probiotics as a possible therapy for allergies. The most studied allergies on which probiotics have been shown to have a beneficial effect are rhinitis, asthma, and atopic dermatitis. Most studies have studied the administration of Lactobacillus and Bifidobacterium spp. in children and have shown beneficial effects, such as a reduction in hyperreactivity and inflammation caused by allergens and a decrease in cytokine release, among other beneficial effects. In the case of children, no clear beneficial effects were found in several studies, and the potential risk from the use of some opportunistic bacteria, such as probiotics, seems controversial. In the studies that reported beneficial results, these effects were found to make allergy symptoms less aggressive, thus reducing morbidity in allergy sufferers. The different effects of the same probiotic bacteria on different patients seem to reinforce the idea that the efficacy of probiotics is dependent on the microbial species or strain, its derived metabolites and byproducts, and the gut microbiota eubiosis of the patient. This study is relevant in the context of allergic diseases, as it provides a broader understanding of new alternatives for the treatment of allergies, both in children, who are the main sufferers, and adults, showing that probiotics, in some cases, reduce the symptoms and severity of such diseases.
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12
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Neves SF, Ponmozhi J, Mergulhão FJ, Campos JBLM, Miranda JM. Cell adhesion in microchannel multiple constrictions - Evidence of mass transport limitations. Colloids Surf B Biointerfaces 2020; 198:111490. [PMID: 33262016 DOI: 10.1016/j.colsurfb.2020.111490] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/30/2020] [Accepted: 11/20/2020] [Indexed: 01/22/2023]
Abstract
Biofilm growth (fouling) in microdevices is a critical concern in several industrial, engineering and health applications, particularly in novel high-performance microdevices often designed with complex geometries, narrow regions and multiple headers. Unfortunately, on these devices, the regions with local high wall shear stresses (WSS) also show high local fouling rates. Several explanations have been put forward by the scientific community, including the effect of cell transport by Brownian motion on the adhesion rate. In this work, for the first time, both WSS and convection and Brownian diffusion effects on cell adhesion were evaluated along a microchannel with intercalate constriction and expansion zones designed to mimic the hydrodynamics of the human body and biomedical devices. Convection and Brownian diffusion effects were numerically studied using a steady-state convective-diffusion model (convection, diffusion and sedimentation). According to the numerical results, the convection and Brownian diffusion effects on cell adhesion are effectively more significant in regions with high WSS. Furthermore, a good agreement was observed between experimental and predicted local Sherwood numbers, particularly at the entrance and within the multiple constrictions. However, further mechanisms should be considered to accurately predict cell adhesion in the expansion zones. The described numerical approach can be used as a way to identify possible clogging zones in microchannels, and defining solutions, even before the construction of the prototype.
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Affiliation(s)
- S F Neves
- CEFT - Transport Phenomena Research Center, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - J Ponmozhi
- CEFT - Transport Phenomena Research Center, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; IES- Institute of Engineering & Science IPS Academy Knowledge Village, Rajendra Nagar A.B. Road, Indore, 452012, India
| | - F J Mergulhão
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - J B L M Campos
- CEFT - Transport Phenomena Research Center, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - J M Miranda
- CEFT - Transport Phenomena Research Center, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal.
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13
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Gopi S, Arulkumar A, Ganeshkumar A, Rajaram R, Miranda JM, Paramasivam S. Heavy metals accumulation in seagrasses collected from Palk Bay, South-eastern India. Mar Pollut Bull 2020; 157:111305. [PMID: 32658673 DOI: 10.1016/j.marpolbul.2020.111305] [Citation(s) in RCA: 3] [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: 04/15/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
Metals such as Cd, Pb, Cu and Zn were analysed in five seagrass species from five locations of the Palk Bay coast of south-eastern India. The maximum Cd concentration (2.83 ± 0.08 μg g-1) was recorded in Syringodium isoetifolium on the Mallipattinam coast in the post-monsoon season, and the Cu (29.54 ± 1.03 μg g-1) in Enhalus acoroides of the Thondi coast during monsoon season. The maximum concentrations of Pb (3.12 ± 0.14 μg g-1) and Zn (52.66 ± 0.88 μg g-1) were observed in S. isoetifolium and Cymodoceae rotundata on the Devipattinam and Karangadu coasts, respectively, during the monsoon season. The metal concentrations obtained in different seagrass species varied significantly among species, and no clear monsoon season had a clear effect on the accumulation of heavy metals in the investigated seagrass species. S. isoetifolium has higher capacity for Cd and Pb accumulation than other tested seagrass species.
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Affiliation(s)
- Selvaraj Gopi
- Department of Oceanography and Coastal Area Studies, School of Marine Sciences, Science Campus, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Abimannan Arulkumar
- Department of Biotechnology, Achariya Arts and Science College, Puducherry 605 110, India
| | - Arumugam Ganeshkumar
- Department of Marine Science, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India
| | - Rajendran Rajaram
- Department of Marine Science, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India
| | - Jose Manuel Miranda
- Departamento de QuímicaAnalítica, Nutrición y Bromatología; Facultade de Veterinaria.Universidade de Santiago de Compostela, Pabellón 4, Planta Baja, 27002 Lugo, Spain
| | - Sadayan Paramasivam
- Department of Oceanography and Coastal Area Studies, School of Marine Sciences, Science Campus, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
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14
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Acciari VA, Ansoldi S, Antonelli LA, Arbet Engels A, Baack D, Babić A, Banerjee B, Barres de Almeida U, Barrio JA, Becerra González J, Bednarek W, Bellizzi L, Bernardini E, Berti A, Besenrieder J, Bhattacharyya W, Bigongiari C, Biland A, Blanch O, Bonnoli G, Bošnjak Ž, Busetto G, Carosi R, Ceribella G, Cerruti M, Chai Y, Chilingarian A, Cikota S, Colak SM, Colin U, Colombo E, Contreras JL, Cortina J, Covino S, D'Amico G, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Delfino M, Delgado J, Depaoli D, Di Pierro F, Di Venere L, Do Souto Espiñeira E, Dominis Prester D, Donini A, Dorner D, Doro M, Elsaesser D, Fallah Ramazani V, Fattorini A, Ferrara G, Foffano L, Fonseca MV, Font L, Fruck C, Fukami S, García López RJ, Garczarczyk M, Gasparyan S, Gaug M, Giglietto N, Giordano F, Gliwny P, Godinović N, Green D, Hadasch D, Hahn A, Herrera J, Hoang J, Hrupec D, Hütten M, Inada T, Inoue S, Ishio K, Iwamura Y, Jouvin L, Kajiwara Y, Karjalainen M, Kerszberg D, Kobayashi Y, Kubo H, Kushida J, Lamastra A, Lelas D, Leone F, Lindfors E, Lombardi S, Longo F, López M, López-Coto R, López-Oramas A, Loporchio S, Machado de Oliveira Fraga B, Maggio C, Majumdar P, Makariev M, Mallamaci M, Maneva G, Manganaro M, Mannheim K, Maraschi L, Mariotti M, Martínez M, Mazin D, Mender S, Mićanović S, Miceli D, Miener T, Minev M, Miranda JM, Mirzoyan R, Molina E, Moralejo A, Morcuende D, Moreno V, Moretti E, Munar-Adrover P, Neustroev V, Nigro C, Nilsson K, Ninci D, Nishijima K, Noda K, Nogués L, Nozaki S, Ohtani Y, Oka T, Otero-Santos J, Palatiello M, Paneque D, Paoletti R, Paredes JM, Pavletić L, Peñil P, Perennes C, Peresano M, Persic M, Prada Moroni PG, Prandini E, Puljak I, Rhode W, Ribó M, Rico J, Righi C, Rugliancich A, Saha L, Sahakyan N, Saito T, Sakurai S, Satalecka K, Schleicher B, Schmidt K, Schweizer T, Sitarek J, Šnidarić I, Sobczynska D, Spolon A, Stamerra A, Strom D, Strzys M, Suda Y, Surić T, Takahashi M, Tavecchio F, Temnikov P, Terzić T, Teshima M, Torres-Albà N, Tosti L, van Scherpenberg J, Vanzo G, Vazquez Acosta M, Ventura S, Verguilov V, Vigorito CF, Vitale V, Vovk I, Will M, Zarić D, Nava L. Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C. Phys Rev Lett 2020; 125:021301. [PMID: 32701326 DOI: 10.1103/physrevlett.125.021301] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/20/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based on a set of assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order of speed of light modification.
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Affiliation(s)
- V A Acciari
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - S Ansoldi
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - L A Antonelli
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | | | - D Baack
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - A Babić
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - B Banerjee
- Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Salt Lake, Sector-1, Kolkata 700064, India
| | - U Barres de Almeida
- Centro Brasileiro de Pesquisas Fsicas (CBPF), 22290-180 URCA, Rio de Janeiro (RJ), Brasil
| | - J A Barrio
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - J Becerra González
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - W Bednarek
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - L Bellizzi
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - E Bernardini
- Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
- Università di Padova and INFN, I-35131 Padova, Italy
| | - A Berti
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - J Besenrieder
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - W Bhattacharyya
- Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
| | - C Bigongiari
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A Biland
- ETH Zurich, CH-8093 Zurich, Switzerland
| | - O Blanch
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - G Bonnoli
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - Ž Bošnjak
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - G Busetto
- Università di Padova and INFN, I-35131 Padova, Italy
| | - R Carosi
- Università di Pisa, and INFN Pisa, I-56126 Pisa, Italy
| | - G Ceribella
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - M Cerruti
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - Y Chai
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - A Chilingarian
- The Armenian Consortium: ICRANet-Armenia at NAS RA, A. Alikhanyan National Laboratory
| | - S Cikota
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - S M Colak
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - U Colin
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - E Colombo
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - J L Contreras
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - J Cortina
- Centro de Investigaciones Energticas, Medioambientales y Tecnolgicas, E-28040 Madrid, Spain
| | - S Covino
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - G D'Amico
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - V D'Elia
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - P Da Vela
- Università di Pisa, and INFN Pisa, I-56126 Pisa, Italy
| | - F Dazzi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A De Angelis
- Università di Padova and INFN, I-35131 Padova, Italy
| | - B De Lotto
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
| | - M Delfino
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - J Delgado
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - D Depaoli
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - F Di Pierro
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - L Di Venere
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - E Do Souto Espiñeira
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - D Dominis Prester
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - A Donini
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
| | - D Dorner
- Universität Würzburg, D-97074 Würzburg, Germany
| | - M Doro
- Università di Padova and INFN, I-35131 Padova, Italy
| | - D Elsaesser
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - V Fallah Ramazani
- Finnish MAGIC Consortium: Finnish Centre of Astronomy with ESO (FINCA), University of Turku, FI-20014 Turku, Finland; Astronomy Research Unit, University of Oulu, FI-90014 Oulu, Finland
| | - A Fattorini
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - G Ferrara
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - L Foffano
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M V Fonseca
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - L Font
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - C Fruck
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - S Fukami
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - R J García López
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - M Garczarczyk
- Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
| | - S Gasparyan
- The Armenian Consortium: ICRANet-Armenia at NAS RA, A. Alikhanyan National Laboratory
| | - M Gaug
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - N Giglietto
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - F Giordano
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - P Gliwny
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - N Godinović
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - D Green
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - D Hadasch
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - A Hahn
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - J Herrera
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - J Hoang
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - D Hrupec
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - M Hütten
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - T Inada
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - S Inoue
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - K Ishio
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - Y Iwamura
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - L Jouvin
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - Y Kajiwara
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - M Karjalainen
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - D Kerszberg
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - Y Kobayashi
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - H Kubo
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - J Kushida
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - A Lamastra
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - D Lelas
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - F Leone
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - E Lindfors
- Finnish MAGIC Consortium: Finnish Centre of Astronomy with ESO (FINCA), University of Turku, FI-20014 Turku, Finland; Astronomy Research Unit, University of Oulu, FI-90014 Oulu, Finland
| | - S Lombardi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - F Longo
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - M López
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - R López-Coto
- Università di Padova and INFN, I-35131 Padova, Italy
| | - A López-Oramas
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - S Loporchio
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | | | - C Maggio
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - P Majumdar
- Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Salt Lake, Sector-1, Kolkata 700064, India
| | - M Makariev
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - M Mallamaci
- Università di Padova and INFN, I-35131 Padova, Italy
| | - G Maneva
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - M Manganaro
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - K Mannheim
- Universität Würzburg, D-97074 Würzburg, Germany
| | - L Maraschi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - M Mariotti
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M Martínez
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - D Mazin
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - S Mender
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - S Mićanović
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - D Miceli
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
| | - T Miener
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - M Minev
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - J M Miranda
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - R Mirzoyan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - E Molina
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - A Moralejo
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - D Morcuende
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - V Moreno
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - E Moretti
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - P Munar-Adrover
- Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - V Neustroev
- Finnish MAGIC Consortium: Finnish Centre of Astronomy with ESO (FINCA), University of Turku, FI-20014 Turku, Finland; Astronomy Research Unit, University of Oulu, FI-90014 Oulu, Finland
| | - C Nigro
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - K Nilsson
- Finnish MAGIC Consortium: Finnish Centre of Astronomy with ESO (FINCA), University of Turku, FI-20014 Turku, Finland; Astronomy Research Unit, University of Oulu, FI-90014 Oulu, Finland
| | - D Ninci
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - K Nishijima
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - K Noda
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - L Nogués
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - S Nozaki
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - Y Ohtani
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - T Oka
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - J Otero-Santos
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - M Palatiello
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
| | - D Paneque
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - R Paoletti
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - J M Paredes
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - L Pavletić
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - P Peñil
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - C Perennes
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M Peresano
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
| | - M Persic
- Università di Udine, and INFN Trieste, I-33100 Udine, Italy
| | | | - E Prandini
- Università di Padova and INFN, I-35131 Padova, Italy
| | - I Puljak
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - W Rhode
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - M Ribó
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - J Rico
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain
| | - C Righi
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - A Rugliancich
- Università di Pisa, and INFN Pisa, I-56126 Pisa, Italy
| | - L Saha
- IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - N Sahakyan
- The Armenian Consortium: ICRANet-Armenia at NAS RA, A. Alikhanyan National Laboratory
| | - T Saito
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - S Sakurai
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - K Satalecka
- Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
| | | | - K Schmidt
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - T Schweizer
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - J Sitarek
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - I Šnidarić
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - D Sobczynska
- University of Lodz, Faculty of Physics and Applied Informatics, Department of Astrophysics, 90-236 Lodz, Poland
| | - A Spolon
- Università di Padova and INFN, I-35131 Padova, Italy
| | - A Stamerra
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - D Strom
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - M Strzys
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - Y Suda
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - T Surić
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - M Takahashi
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - F Tavecchio
- National Institute for Astrophysics (INAF), I-00136 Rome, Italy
| | - P Temnikov
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - T Terzić
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - M Teshima
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - N Torres-Albà
- Universitat de Barcelona, ICCUB, IEEC-UB, E-08028 Barcelona, Spain
| | - L Tosti
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | | | - G Vanzo
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - M Vazquez Acosta
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, and Universidad de La Laguna, Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
| | - S Ventura
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - V Verguilov
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
| | - C F Vigorito
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - V Vitale
- Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati (Roma) Italy
| | - I Vovk
- Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
| | - M Will
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - D Zarić
- Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split-FESB, 21000 Split; University of Zagreb-FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
| | - L Nava
- National Institute for Astrophysics (INAF), Osservatorio Astronomico di Brera, 23807 Merate, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, 34149 Trieste, Italy
- Institute for Fundamental Physics of the Universe (IFPU), 34151 Trieste, Italy
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Ibarra IS, Miranda JM, Pérez-Silva I, Jardinez C, Islas G. Sample treatment based on molecularly imprinted polymers for the analysis of veterinary drugs in food samples: a review. Anal Methods 2020; 12:2958-2977. [PMID: 32930156 DOI: 10.1039/d0ay00533a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The use of veterinary drugs in medical treatments and in the livestock industry is a recurrent practice. When applied in subtherapeutic doses over prolonged times, they can also act as growth promoters. However, residues of these substances in foods present a risk to human health. Their analysis is thus important and can help guarantee consumer safety. The critical point in each analytical technique is the sample treatment and the analytical matrix complexity. The present manuscript summarizes the development, type of synthesis, characterization, and application of molecularly imprinted polymers in the separation, identification, and quantification techniques for the determination of veterinary drug residues in food samples in extraction, clean-up, isolation, and pre-concentration systems. Synthesized sorbents with specific recognition properties improve the interactions between the analytes and the polymeric sorbents, providing better analysis conditions and advantages in comparison with commercial sorbents in terms of high selectivity, analytical sensitivity, easy performance, and low cost analysis.
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Affiliation(s)
- I S Ibarra
- Área Académica de Quimica, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hgo, México.
| | - J M Miranda
- Departamento Quimica Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Pabellon 4 planta bajo, Campus Universitario s/n, 27002 Lugo, Spain
| | - I Pérez-Silva
- Área Académica de Quimica, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hgo, México.
| | - C Jardinez
- Área Académica de Quimica, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hgo, México.
| | - G Islas
- Área Académica de Quimica, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hgo, México.
- Universidad Politécnica de Francisco I. Madero, Área de Ingeniería Agroindustrial, Domicilio Conocido, 42640 Tepatepec, Hgo, Mexico
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Lopez-Santamarina A, Mondragon ADC, Lamas A, Miranda JM, Franco CM, Cepeda A. Animal-Origin Prebiotics Based on Chitin: An Alternative for the Future? A Critical Review. Foods 2020; 9:foods9060782. [PMID: 32545663 PMCID: PMC7353569 DOI: 10.3390/foods9060782] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/03/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023] Open
Abstract
The human gut microbiota has been revealed in recent years as a factor that plays a decisive role in the maintenance of human health, as well as in the development of many non-communicable diseases. This microbiota can be modulated by various dietary factors, among which complex carbohydrates have a great influence. Although most complex carbohydrates included in the human diet come from vegetables, there are also options to include complex carbohydrates from non-vegetable sources, such as chitin and its derivatives. Chitin, and its derivatives such as chitosan can be obtained from non-vegetable sources, the best being insects, crustacean exoskeletons and fungi. The present review offers a broad perspective of the current knowledge surrounding the impacts of chitin and its derived polysaccharides on the human gut microbiota and the profound need for more in-depth investigations into this topic. Overall, the effects of whole insects or meal on the gut microbiota have contradictory results, possibly due to their high protein content. Better results are obtained for the case of chitin derivatives, regarding both metabolic effects and effects on the gut microbiota composition.
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Lopez-Santamarina A, Miranda JM, Mondragon ADC, Lamas A, Cardelle-Cobas A, Franco CM, Cepeda A. Potential Use of Marine Seaweeds as Prebiotics: A Review. Molecules 2020; 25:E1004. [PMID: 32102343 PMCID: PMC7070434 DOI: 10.3390/molecules25041004] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/28/2020] [Accepted: 02/21/2020] [Indexed: 02/06/2023] Open
Abstract
Human gut microbiota plays an important role in several metabolic processes and human diseases. Various dietary factors, including complex carbohydrates, such as polysaccharides, provide abundant nutrients and substrates for microbial metabolism in the gut, affecting the members and their functionality. Nowadays, the main sources of complex carbohydrates destined for human consumption are terrestrial plants. However, fresh water is an increasingly scarce commodity and world agricultural productivity is in a persistent decline, thus demanding the exploration of other sources of complex carbohydrates. As an interesting option, marine seaweeds show rapid growth and do not require arable land, fresh water or fertilizers. The present review offers an objective perspective of the current knowledge surrounding the impacts of seaweeds and their derived polysaccharides on the human microbiome and the profound need for more in-depth investigations into this topic. Animal experiments and in vitro colonic-simulating trials investigating the effects of seaweed ingestion on human gut microbiota are discussed.
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Affiliation(s)
| | - Jose Manuel Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.L.-S.); (A.d.C.M.); (A.L.); (A.C.-C.); (C.M.F.); (A.C.)
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Martinez-Albores A, Lopez-Santamarina A, Rodriguez JA, Ibarra IS, Mondragón ADC, Miranda JM, Lamas A, Cepeda A. Complementary Methods to Improve the Depuration of Bivalves: A Review. Foods 2020; 9:E129. [PMID: 31991702 PMCID: PMC7074382 DOI: 10.3390/foods9020129] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/18/2020] [Accepted: 01/23/2020] [Indexed: 12/13/2022] Open
Abstract
Bivalves are filter feeders that can accumulate and concentrate waterborne contaminants present in the water in which they live. Biotoxins, pathogenic bacteria, viruses, and heavy metals present in the aquaculture environment constitute the main hazards for human health. The most common method employed for combating waterborne pollutants in bivalves is depuration with purified seawater. Although this method is effective at increasing the microbiological quality of bivalves, in most cases, it is ineffective at eliminating other risks, such as, for example, viruses or heavy metals. Biological (bacteriocins and bacteriophages), physical (UV light, ozone, and gamma-irradiation), chemical (metallothioneins and chitosan), and other industrial processing methods have been found to be useful for eliminating some contaminants from seawater. The aim of this work was to provide a review of academic articles concerning the use of treatments complementary to conventional depuration, aiming to improve depuration process efficiency by reducing depuration times and decreasing the levels of the most difficult-to-erase contaminants. We conclude that there are different lab-tested strategies that can reduce depuration times and increase the food safety of bivalve produce, with possible short- and long-term industrial applications that could improve the competitivity of the aquaculture industry.
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Affiliation(s)
- Antía Martinez-Albores
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.M.-A.); (A.L.-S.); (A.d.C.M.); (J.M.M.); (A.L.)
| | - Aroa Lopez-Santamarina
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.M.-A.); (A.L.-S.); (A.d.C.M.); (J.M.M.); (A.L.)
| | - José Antonio Rodriguez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km 4.5, 42076 Pachuca, Hidalgo, Mexico; (J.A.R.); (I.S.I.)
| | - Israel Samuel Ibarra
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km 4.5, 42076 Pachuca, Hidalgo, Mexico; (J.A.R.); (I.S.I.)
| | - Alicia del Carmen Mondragón
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.M.-A.); (A.L.-S.); (A.d.C.M.); (J.M.M.); (A.L.)
| | - Jose Manuel Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.M.-A.); (A.L.-S.); (A.d.C.M.); (J.M.M.); (A.L.)
| | - Alexandre Lamas
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.M.-A.); (A.L.-S.); (A.d.C.M.); (J.M.M.); (A.L.)
| | - Alberto Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (A.M.-A.); (A.L.-S.); (A.d.C.M.); (J.M.M.); (A.L.)
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Gavilán RE, Nebot C, Patyra E, Vazquez B, Miranda JM, Cepeda A. Determination of Florfenicol, Thiamfenicol and Chloramfenicol at Trace Levels in Animal Feed by HPLC⁻MS/MS. Antibiotics (Basel) 2019; 8:antibiotics8020059. [PMID: 31067799 PMCID: PMC6628031 DOI: 10.3390/antibiotics8020059] [Citation(s) in RCA: 10] [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: 03/20/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 11/21/2022] Open
Abstract
Administration of florfenicol and thiamfenicol through medicated feed is permitted within the European Union, always following veterinary prescription and respecting the withdrawal periods. However, the presence of low levels of florfenicol, thiamfenicol, and chloramfenicol in non-target feed is prohibited. Since cross-contamination can occur during the production of medicated feed and according to Annex II of the European Regulation 2019/4/EC, the control of residue levels of florfenicol and thiamfenicol in non-target feed should be monitored and avoided. Based on all the above, a sensitive and reliable method using liquid chromatography tandem mass spectrometry was developed for the simultaneous detection of chloramfenicol, florfenicol, and thiamfenicol at trace levels in animal feed. Analytes were extracted from minced feed with ethyl acetate. Then, the ethyl acetate was evaporated, the residue was resuspended in Milli-Q water and the extract filtered. The method was in-house validated at carryover levels, with concentration ranging from 100 to 1000 µg/kg. The validation was conducted following the European Commission Decision 2002/657/EC and all performance characteristics were successfully satisfied. The capability of the method to detect amfenicols at lower levels than any prior perspective regulation literature guarantees its applicability in official control activities. The developed method has been applied to non-compliant feed samples with satisfactory results.
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Affiliation(s)
- Rosa Elvira Gavilán
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Carolina Nebot
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Ewelina Patyra
- Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24⁻100 Pulawy, Poland.
| | - Beatriz Vazquez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Jose Manuel Miranda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Alberto Cepeda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
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20
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Tattibayeva D, Nebot C, Miranda JM, Abuova AB, Kizatova MZ, Vazquez B, Cepeda A, Franco CM. Occurrence of mycotoxins in talkan: a cereal-based food traditional for Turkic population. Pol J Vet Sci 2018; 21:333-341. [PMID: 30450873 DOI: 10.24425/122602] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The consumption of cereal contaminated with mycotoxins poses a serious health risk for humans and animals. The present work aims to evaluate the presence of mycotoxins in talkan, a cereal-based food commonly consumed by the Turkic population. The presence of mycotoxins was investigated in a total of 50 samples obtained from Kazakhstan. After a preliminary screening using various ELISA kits, mycotoxins were confirmed and quantified by HPLC-MS/MS method. More than 28% of the samples were positive for at least one mycotoxin. The calculated probably daily intake for adults and children was 20% above the tolerable daily intake for aflatoxin B1 and deoxynivalenol, while it was above 100% for zearalenone, indicating a high risk for the Kazakh population. A total of 12 samples exhibited concentrations above the European maximum level for ochratoxin A, zearalenone and deoxynivalenol, however, these values were within the limits established by the Russia-Kazakhstan-Belarus Customs Union (TR CU 015/2011).
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Affiliation(s)
- D Tattibayeva
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain
| | - C Nebot
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain
| | - J M Miranda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain
| | - A B Abuova
- Department of Food Processing Technology, Zhangir Khan West Kazakhstan Agrarian Technical University, Zhangir Khan street, 51, Uralsk, 090009, Republic of Kazakhstan
| | - M Z Kizatova
- Department of Technology of Bakeries and Processing Industries, Almaty Technological University, Tole by street, 100, Almaty, 050012, Republic of Kazakhstan
| | | | - A Cepeda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain
| | - C M Franco
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain
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21
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Roca-Saavedra P, Rodriguez JA, Lamas A, Miranda JM, Nebot C, Cardelle-Cobas A, Franco CM, Cepeda A. Low-dosage antibiotic intake can disturb gut microbiota in mice. CyTA - Journal of Food 2018. [DOI: 10.1080/19476337.2018.1474264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Paula Roca-Saavedra
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
| | - Jose A. Rodriguez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| | - Alexandre Lamas
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
| | - Jose Manuel Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
| | - Carolina Nebot
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
| | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
| | - Carlos M. Franco
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
| | - Alberto Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, Lugo, Spain
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22
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Gavilán RE, Nebot C, Patyra E, Miranda JM, Franco CM, Cepeda A. Simultaneous analysis of coccidiostats and sulphonamides in non-target feed by HPLC-MS/MS and validation following the Commission Decision 2002/657/EC. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018; 35:1093-1106. [PMID: 29718801 DOI: 10.1080/19440049.2018.1466061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Taking into consideration the maximum level (ML) for coccidiostats included in the European Regulation 574/2011 and the fact that the presence of residues of sulphonamides in non-target feed is forbidden, the aim of this article is to present an analytical method based on HPLC-MS/MS for the identification and quantification of sulphonamides and coccidiostats in non-target feeds. The method was validated following Commission Decision 2002/657/EC, and recovery, repeatability and reproducibility were within the limits established in the Decision. For coccidiostats, the decision limit and detection capability were calculated for the different species taking into account the ML allowed in Regulation 574/2011. The applicability of the method was investigated in 50 feed samples collected from dairy farms, 50 obtained from feed mills and 10 interlaboratory feed samples.
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Affiliation(s)
- Rosa Elvira Gavilán
- a Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine , University of Santiago de Compostela , Lugo , Spain
| | - Carolina Nebot
- a Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine , University of Santiago de Compostela , Lugo , Spain
| | - Ewelina Patyra
- b Department of Hygiene of Animal Feedingstuffs , National Veterinary Research Institute , Pulawy , Poland
| | - Jose Manuel Miranda
- a Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine , University of Santiago de Compostela , Lugo , Spain
| | - Carlos Manuel Franco
- a Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine , University of Santiago de Compostela , Lugo , Spain
| | - Alberto Cepeda
- a Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine , University of Santiago de Compostela , Lugo , Spain
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23
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Castro-Penalonga M, Roca-Saavedra P, Miranda JM, Porto-Arias JJ, Nebot C, Cardelle-Cobas A, Franco CM, Cepeda A. Influence of food consumption patterns and Galician lifestyle on human gut microbiota. J Physiol Biochem 2017. [PMID: 28624933 DOI: 10.1007/s13105-017-0570-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The proportion of different microbial populations in the human gut is an important factor that in recent years has been linked to obesity and numerous metabolic diseases. Because there are many factors that can affect the composition of human gut microbiota, it is of interest to have information about what is the composition of the gut microbiota in different populations in order to better understand the possibilities for improving nutritional management. A group of 31 volunteers were selected according to established inclusion and exclusion criteria and were asked about their diet history, lifestyle patterns, and adherence to the Southern European Atlantic Diet. Fecal samples were taken and subsequently analyzed by real-time PCR. The results indicated different dietary patterns for subjects who consumed a higher amount of fruits, vegetables, legumes, and fish and a lower amount of bakery foods and precooked foods and snacks compared to Spanish consumption data. Most participants showed intermediate or high adherence to Southern European Atlantic Diet, and an analysis of gut microbiota showed high numbers of total bacteria and Actinobacteria, as well as high amounts of bacteria belonging to the genera Lactobacillus spp. and Bifidobacterium spp. A subsequent statistical comparison also revealed differences in gut microbiota depending on the subject's body weight, age, or degree of adherence to the Southern European Atlantic Diet.
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Affiliation(s)
- María Castro-Penalonga
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Paula Roca-Saavedra
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Jose Manuel Miranda
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain. .,Laboratorio de Higiene Inspeccion y Control de Alimentos, Facultad de Veterinaria pabellon 4 p.b. Campus Universitario, 27002, Lugo, Spain.
| | - Jose Julio Porto-Arias
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Carolina Nebot
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Carlos Manuel Franco
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Alberto Cepeda
- Laboratorio de Higiene, Inspeccion y Control de Alimentos, Departamento de Quimica Analitica, Nutricion y Bromatologia, Universidade de Santiago de Compostela, 27002, Lugo, Spain
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24
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Roca-Saavedra P, Mendez-Vilabrille V, Miranda JM, Nebot C, Cardelle-Cobas A, Franco CM, Cepeda A. Food additives, contaminants and other minor components: effects on human gut microbiota-a review. J Physiol Biochem 2017; 74:69-83. [PMID: 28488210 DOI: 10.1007/s13105-017-0564-2] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 04/10/2017] [Indexed: 02/06/2023]
Abstract
Gut bacteria play an important role in several metabolic processes and human diseases, such as obesity and accompanying co-morbidities, such as fatty liver disease, insulin resistance/diabetes, and cardiovascular events. Among other factors, dietary patterns, probiotics, prebiotics, synbiotics, antibiotics, and non-dietary factors, such as stress, age, exercise, and climatic conditions, can dramatically impact the human gut microbiota equilibrium and diversity. However, the effect of minor food constituents, including food additives and trace contaminants, on human gut microbiota has received less attention. Consequently, the present review aimed to provide an objective perspective of the current knowledge regarding the impacts of minor food constituents on human gut microbiota and consequently, on human health.
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Affiliation(s)
- Paula Roca-Saavedra
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Veronica Mendez-Vilabrille
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Jose Manuel Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain.
| | - Carolina Nebot
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Alejandra Cardelle-Cobas
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Carlos M Franco
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Alberto Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología, Universidade de Santiago de Compostela, 27002, Lugo, Spain
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25
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Arulkumar A, Ramanchandran K, Paramasivam S, Palanivel R, Miranda JM. Effects of turmeric (Curcuma longa) on shelf life extension and biogenic amine control of cuttlefish (Sepia brevimana) during chilled storage. CyTA - Journal of Food 2017. [DOI: 10.1080/19476337.2017.1296495] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Abimannan Arulkumar
- Department of Oceanography and Coastal Area Studies, School of Marine Sciences, Alagappa University, Thondi, Tamil Nadu, India
| | - Kaliyan Ramanchandran
- Department of Biotechnology, Sengunthar Arts and Science College, Tiruchengode, Tamil Nadu, India
| | - Sadayan Paramasivam
- Department of Oceanography and Coastal Area Studies, School of Marine Sciences, Alagappa University, Thondi, Tamil Nadu, India
| | | | - Jose Manuel Miranda
- Departamento de Química Analítica, Nutrición y Bromatología, Facultade de Veterinaria, Universidade de Santiago de Compostela, Lugo, Spain
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26
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Veiga-Gómez M, Nebot C, Franco CM, Miranda JM, Vázquez B, Cepeda A. Identification and quantification of 12 pharmaceuticals in water collected from milking parlors: Food safety implications. J Dairy Sci 2017; 100:3373-3383. [PMID: 28259402 DOI: 10.3168/jds.2016-12227] [Citation(s) in RCA: 4] [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: 10/28/2016] [Accepted: 01/06/2017] [Indexed: 11/19/2022]
Abstract
The introduction of drug residues into the food chain and their presence in drinking water has been recently investigated. The aim of this work was to monitor the presence of 19 active drugs in water samples collected from milking parlors of dairy farms located in Galicia (northwest Spain), one of the main Spanish milking areas. Overall, 65% of the samples tested positive for at least one of the compounds analyzed. A total of 12 drugs were measured, with concentrations ranging between 17 and 3,941 ng/L. Considering that a mixture of compounds may contribute to the overall effect of each compound and might increase or reduce its toxicity, it should be noted that 29% of the samples tested contained more than one pharmaceutical. To date, the effects of the continuous consumption of these mixtures of drugs in water or milk are unknown; however, antimicrobials may affect the human gut microbiota or have toxic effects in sensitive individuals.
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Affiliation(s)
- María Veiga-Gómez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, Pavillón 4, Planta Baixa, 27002 Lugo, Spain
| | - Carolina Nebot
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, Pavillón 4, Planta Baixa, 27002 Lugo, Spain.
| | - Carlos Manuel Franco
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, Pavillón 4, Planta Baixa, 27002 Lugo, Spain
| | - Jose Manuel Miranda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, Pavillón 4, Planta Baixa, 27002 Lugo, Spain
| | - Beatriz Vázquez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, Pavillón 4, Planta Baixa, 27002 Lugo, Spain
| | - Alberto Cepeda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, Pavillón 4, Planta Baixa, 27002 Lugo, Spain
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27
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Abouelnaga M, Lamas A, Guarddon M, Osman M, Miranda JM, Cepeda A, Franco CM. Assessment of food safety using a new real-time PCR assay for detection and quantification of virulence factors of enterococci in food samples. J Appl Microbiol 2016; 121:1745-1754. [PMID: 27684545 DOI: 10.1111/jam.13306] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 04/28/2016] [Accepted: 05/05/2016] [Indexed: 11/29/2022]
Abstract
AIMS Development of Taqman MGB real-time PCR (q-PCR) assays for the quantitative detection of virulence factor genes in pure culture and food samples with regard to food safety assessment. METHODS AND RESULTS New Taqman primers and probes were designed for the ace, esp and gelE genes based on the determinants of virulence profiles of enterococcal strains from GenBank. The high specificity and accuracy of the Taqman probe assay was confirmed. The limit of detection for the different virulence genes was 102 CFU ml-1 or CFU g-1 for pure culture and meat samples, and 103 CFU g-1 for cheese samples. CONCLUSION This method provides the specific and rapid detection and quantification of ace, esp and gelE genes compared to conventional PCR assays, thus allowing the rapid and direct safety assessment of Enterococcus genus in food samples. SIGNIFICANCE AND IMPACT OF THE STUDY This study presents efficient methods that can be used directly on food products for the rapid quantification and tracing of virulence genes, regarding food safety assessment. Moreover, this is the first study to quantify these virulence factors using a specific Taqman q-PCR assay in food samples.
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Affiliation(s)
- M Abouelnaga
- Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Lugo, Spain.,Dairy Department, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt
| | - A Lamas
- Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Lugo, Spain
| | - M Guarddon
- Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Lugo, Spain
| | - M Osman
- Dairy Department, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt
| | - J M Miranda
- Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Lugo, Spain
| | - A Cepeda
- Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Lugo, Spain
| | - C M Franco
- Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Lugo, Spain
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28
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Lamas A, Miranda JM, Vázquez B, Cepeda A, Franco CM. Biofilm formation, phenotypic production of cellulose and gene expression in Salmonella enterica decrease under anaerobic conditions. Int J Food Microbiol 2016; 238:63-67. [PMID: 27592071 DOI: 10.1016/j.ijfoodmicro.2016.08.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 06/02/2016] [Revised: 08/28/2016] [Accepted: 08/29/2016] [Indexed: 10/21/2022]
Abstract
Salmonella enterica subsp. enterica is one of the main food-borne pathogens. This microorganism combines an aerobic life outside the host with an anaerobic life within the host. One of the main concerns related to S. enterica is biofilm formation and cellulose production. In this study, biofilm formation, morphotype, cellulose production and transcription of biofilm and quorum sensing-related genes of 11 S. enterica strains were tested under three different conditions: aerobiosis, microaerobiosis, and anaerobiosis. The results showed an influence of oxygen levels on biofilm production. Biofilm formation was significantly higher (P<0.05) in aerobiosis than in microaerobiosis and anaerobiosis. Cellulose production and RDAR (red, dry, and rough) were expressed only in aerobiosis. In microaerobiosis, the strains expressed the SAW (smooth and white) morphotype, while in anaerobiosis the colonies appeared small and red. The expression of genes involved in cellulose synthesis (csgD and adrA) and quorum sensing (sdiA and luxS) was reduced in microaerobiosis and anaerobiosis in all S. enterica strains tested. This gene expression levels were less reduced in S. Typhimurium and S. Enteritidis compared to the tested serotypes. There was a relationship between the expression of biofilm and quorum sensing-related genes. Thus, the results from this study indicate that biofilm formation and cellulose production are highly influenced by atmospheric conditions. This must be taken into account as contamination with these bacteria can occur during food processing under vacuum or modified atmospheres.
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Affiliation(s)
- A Lamas
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - B Vázquez
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - A Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - C M Franco
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain.
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29
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Doutel E, Pinto SIS, Campos JBLM, Miranda JM. Link between deviations from Murray's Law and occurrence of low wall shear stress regions in the left coronary artery. J Theor Biol 2016; 402:89-99. [PMID: 27157126 DOI: 10.1016/j.jtbi.2016.04.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 02/16/2016] [Revised: 04/22/2016] [Accepted: 04/29/2016] [Indexed: 11/28/2022]
Abstract
Murray developed two laws for the geometry of bifurcations in the circulatory system. Based on the principle of energy minimization, Murray found restrictions for the relation between the diameters and also between the angles of the branches. It is known that bifurcations are prone to the development of atherosclerosis, in regions associated to low wall shear stresses (WSS) and high oscillatory shear index (OSI). These indicators (size of low WSS regions, size of high OSI regions and size of high helicity regions) were evaluated in this work. All of them were normalized by the size of the outflow branches. The relation between Murray's laws and the size of low WSS regions was analysed in detail. It was found that the main factor leading to large regions of low WSS is the so called expansion ratio, a relation between the cross section areas of the outflow branches and the cross section area of the main branch. Large regions of low WSS appear for high expansion ratios. Furthermore, the size of low WSS regions is independent of the ratio between the diameters of the outflow branches. Since the expansion ratio in bifurcations following Murray's law is kept in a small range (1 and 1.25), all of them have regions of low WSS with similar size. However, the expansion ratio is not small enough to completely prevent regions with low WSS values and, therefore, Murray's law does not lead to atherosclerosis minimization. A study on the effect of the angulation of the bifurcation suggests that the Murray's law for the angles does not minimize the size of low WSS regions.
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Affiliation(s)
- E Doutel
- Centro de Estudos de Fenómenos de Transporte, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - S I S Pinto
- Centro de Estudos de Fenómenos de Transporte, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - J B L M Campos
- Centro de Estudos de Fenómenos de Transporte, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - J M Miranda
- Centro de Estudos de Fenómenos de Transporte, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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Lamas A, Fernandez-No IC, Miranda JM, Vázquez B, Cepeda A, Franco CM. Biofilm Formation and Morphotypes of Salmonella enterica subsp.arizonae Differs from Those of Other Salmonella enterica Subspecies in Isolates from Poultry Houses. J Food Prot 2016; 79:1127-34. [PMID: 27357031 DOI: 10.4315/0362-028x.jfp-15-568] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Salmonella serovars are responsible for foodborne diseases around the world. The ability to form biofilms allows microorganisms to survive in the environment. In this study, 73 Salmonella strains, belonging to four different subspecies, were isolated from poultry houses and foodstuffs and tested. Biofilm formation was measured at four different temperatures and two nutrient concentrations. Morphotypes and cellulose production were evaluated at three different temperatures. The presence of several genes related to biofilm production was also examined. All strains and subspecies of Salmonella had the ability to form biofilms, and 46.57% of strains produced biofilms under all conditions tested. Biofilm formation was strain dependent and varied according to the conditions. This is the first study to analyze biofilm formation in a wide number of Salmonella enterica subsp. arizonae strains, and no direct relationship between the high prevalence of Salmonella enterica subsp. arizonae strains and their ability to form biofilm was established. Morphotypes and cellulose production varied as the temperature changed, with 20°C being the optimum temperature for expression of the red, dry, and rough morphotype and cellulose. Salmonella enterica subsp. arizonae, whose morphotype is poorly studied, only showed a smooth and white morphotype and lacked the csgD and gcpA genes that are implicated in biofilm production. Thus, Salmonella biofilm formation under different environmental conditions is a public health problem because it can survive and advance through the food chain to reach the consumer.
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Affiliation(s)
- A Lamas
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - I C Fernandez-No
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica,Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - B Vázquez
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - A Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - C M Franco
- Laboratorio de Higiene Inspección y Control de Alimentos. Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain.
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Catarino SO, Minas G, Miranda JM. Improving acoustic streaming effects in fluidic systems by matching SU-8 and polydimethylsiloxane layers. Ultrasonics 2016; 69:47-57. [PMID: 27044029 DOI: 10.1016/j.ultras.2016.03.010] [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: 06/30/2015] [Revised: 03/22/2016] [Accepted: 03/22/2016] [Indexed: 06/05/2023]
Abstract
This paper reports the use of acoustic waves for promoting and improving streaming in tridimensional polymethylmethacrylate (PMMA) cuvettes of 15mm width×14mm height×2.5mm thickness. The acoustic waves are generated by a 28μm thick poly(vinylidene fluoride) - PVDF - piezoelectric transducer in its β phase, actuated at its resonance frequency: 40MHz. The acoustic transmission properties of two materials - SU-8 and polydimethylsiloxane (PDMS) - were numerically compared. It was concluded that PDMS inhibits, while SU-8 allows, the transmission of the acoustic waves to the propagation medium. Therefore, by simulating the acoustic transmission properties of different materials, it is possible to preview the acoustic behavior in the fluidic system, which allows the optimization of the best layout design, saving costs and time. This work also presents a comparison between numerical and experimental results of acoustic streaming obtained with that β-PVDF transducer in the movement and in the formation of fluid recirculation in tridimensional closed domains. Differences between the numerical and experimental results are credited to the high sensitivity of acoustic streaming to the experimental conditions and to limitations of the numerical method. The reported study contributes for the improvement of simulation models that can be extremely useful for predicting the acoustic effects of new materials in fluidic devices, as well as for optimizing the transducers and matching layers positioning in a fluidic structure.
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Affiliation(s)
- S O Catarino
- CEFT, Department of Chemical Engineering, FEUP, University of Porto, Portugal; Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal.
| | - G Minas
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal
| | - J M Miranda
- CEFT, Department of Chemical Engineering, FEUP, University of Porto, Portugal
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Lamas A, Fernandez-No IC, Miranda JM, Vázquez B, Cepeda A, Franco CM. Prevalence, molecular characterization and antimicrobial resistance of Salmonella serovars isolated from northwestern Spanish broiler flocks (2011-2015). Poult Sci 2016; 95:2097-105. [PMID: 27143768 DOI: 10.3382/ps/pew150] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2016] [Indexed: 12/22/2022] Open
Abstract
The present study investigated the prevalence, antimicrobial resistance to twenty antibiotics, and class 1 integron and virulence genes of Salmonella isolated from poultry houses of broilers in northwestern Spain between 2011 and 2015. Strains were classified to the serotype level using the Kauffman-White typing scheme and subtyping with enterobacterial repetitive intergenic consensus PCR. The prevalence of Salmonella spp. was 1.02%. Sixteen different serotypes were found, with S. typhimurium and S. arizonae 48:z4, z23:- being the most prevalent. A total of 59.70% of strains were resistant to at least one, and 19.70% were resistant to multiple drugs. All Salmonella spp. were susceptible to cefotaxime, ciprofloxacin, gentamicin, kanamycin, levofloxacin, neomycin, and trimethoprim. The highest level of resistance was to sulfamethoxazole (40.29%), doxycycline (17.91%), and nalidixic acid (17.91%). None of the isolates carried class 1 integron and only isolates of S. enterica subspecies enterica were positive for all virulence factors tested, whereas S. arizonae lacked genes related to replication and invasion in nonphagocytic cells. This study demonstrates that the prevalence and antimicrobial resistance of Salmonella spp. in poultry houses of broilers of northwestern Spain is low compared with those found in other studies and in other steps of the food chain.
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Affiliation(s)
- A Lamas
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología. Universidad de Santiago de Compostela. 27002-Lugo. Spain
| | - I C Fernandez-No
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología. Universidad de Santiago de Compostela. 27002-Lugo. Spain
| | - J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología. Universidad de Santiago de Compostela. 27002-Lugo. Spain
| | - B Vázquez
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología. Universidad de Santiago de Compostela. 27002-Lugo. Spain
| | - A Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología. Universidad de Santiago de Compostela. 27002-Lugo. Spain
| | - C M Franco
- Laboratorio de Higiene Inspección y Control de Alimentos. Dpto. de Química Analítica, Nutrición y Bromatología. Universidad de Santiago de Compostela. 27002-Lugo. Spain
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Catarino SO, Minas G, Miranda JM. Evaluation of the successive approximations method for acoustic streaming numerical simulations. J Acoust Soc Am 2016; 139:2269. [PMID: 27250122 DOI: 10.1121/1.4946993] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work evaluates the successive approximations method commonly used to predict acoustic streaming by comparing it with a direct method. The successive approximations method solves both the acoustic wave propagation and acoustic streaming by solving the first and second order Navier-Stokes equations, ignoring the first order convective effects. This method was applied to acoustic streaming in a 2D domain and the results were compared with results from the direct simulation of the Navier-Stokes equations. The velocity results showed qualitative agreement between both methods, which indicates that the successive approximations method can describe the formation of flows with recirculation. However, a large quantitative deviation was observed between the two methods. Further analysis showed that the successive approximation method solution is sensitive to the initial flow field. The direct method showed that the instantaneous flow field changes significantly due to reflections and wave interference. It was also found that convective effects contribute significantly to the wave propagation pattern. These effects must be taken into account when solving the acoustic streaming problems, since it affects the global flow. By adequately calculating the initial condition for first order step, the acoustic streaming prediction by the successive approximations method can be improved significantly.
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Affiliation(s)
- S O Catarino
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - G Minas
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - J M Miranda
- Transport Phenomena Research Center (CEFT), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Tattibayeva D, Nebot C, Miranda JM, Cepeda A, Mateyev E, Erkebaev M, Franco CM. A study on toxic and essential elements in rice from the Republic of Kazakhstan: comparing the level of contamination in rice from the European Community. Environ Geochem Health 2016; 38:85-98. [PMID: 25750053 DOI: 10.1007/s10653-015-9687-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 11/08/2013] [Accepted: 02/25/2015] [Indexed: 06/04/2023]
Abstract
Selected toxic elements (total As, Cd, Cr, Hg, Pb, Sr, U and V) and essential elements (Co, Cu, Fe, Mn and Zn) were analyzed using an inductively coupled plasma mass spectrometry (ICP-MS) in unpolished and milled rice collected from Kazakhstan and milled rice from Spain and Portugal to evaluate the potential health risk to the population. Arsenic species (arsenite, arsenate, arsenobetaine, dimethylarsinate and monomethilarsonate) were analyzed using HPLC-IC-MS. From 146 samples analyzed, none of them exceeded the maximum limit set by the European Legislation for Cd or Pb or values recommended by the Codex Alimentarius. Concentrations of Sr, U and V were below LOD and those of Hg, Pb, Co and Cr between <LOD and 0.54 mg/kg (highest concentration of Cr) in milled rice. Portuguese rice samples contained the highest mean concentration of As, Hg, Pb, Co, Cr, Cu, Mn and Zn. The highest mean of arsenobetaine (0.001 mg/kg), dimethylarsinate (0.27 mg/kg) and monomethilarsonate (0.02 mg/kg) was found in Spanish rice and that of arsenite (0.30 mg/kg) in Kazakh rice. Inorganic As in samples from Kazakhstan was above the ML (0.2 mg/kg) proposed by FAO/WHO, but in seven samples from Spain and in four from Portugal were above the limit. The estimated weekly intake of total or inorganic As(III, V), Cd, Hg and Pb for rice consumption by Kazakh, Spanish and Portuguese adults and children was lower than the provisional tolerable weekly intake established by Joint FAO/WHO Expert Committee on Food Additives and the European Food Safety Authority.
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Affiliation(s)
- D Tattibayeva
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto. Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Pabellón 4 planta baja, Campus Universitario s/n, 27002, Lugo, Spain
| | - C Nebot
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto. Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Pabellón 4 planta baja, Campus Universitario s/n, 27002, Lugo, Spain
| | - J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto. Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Pabellón 4 planta baja, Campus Universitario s/n, 27002, Lugo, Spain
| | - A Cepeda
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto. Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Pabellón 4 planta baja, Campus Universitario s/n, 27002, Lugo, Spain
| | - E Mateyev
- Department of "Mechanization and Automation of Manufacturing Processes", Almaty Technological University, Tole bi street, 100, 050012, Almaty, Kazakhstan
| | - M Erkebaev
- Department of "Mechanization and Automation of Manufacturing Processes", Almaty Technological University, Tole bi street, 100, 050012, Almaty, Kazakhstan
| | - C M Franco
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto. Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Pabellón 4 planta baja, Campus Universitario s/n, 27002, Lugo, Spain.
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Gavilán RE, Nebot C, Miranda JM, Martín-Gómez Y, Vázquez-Belda B, Franco CM, Cepeda A. Analysis of Tetracyclines in Medicated Feed for Food Animal Production by HPLC-MS/MS. Antibiotics (Basel) 2015; 5:antibiotics5010001. [PMID: 27025516 PMCID: PMC4810403 DOI: 10.3390/antibiotics5010001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 07/31/2015] [Revised: 12/01/2015] [Accepted: 12/15/2015] [Indexed: 11/16/2022] Open
Abstract
The use of medicated feed is a common practice in animal food production to improve animal health. Tetracyclines and β-Lactams are the groups that are most frequently added to this type of feed. The measurement of the concentration of the analytes in these types of samples is sometimes due to the matrix characteristic, and manufacturers are demanding fast, precise and reproducible methods. A rapid confirmatory method based on a simple extraction protocol using acidified methanol and followed by high performance liquid chromatography coupled to a tandem mass spectrometer for the quantification of four tetracyclines in feed is presented. Validation was performed following the guidelines of Decision 2002/657/EC. Results indicated that the four tetracyclines can be identified and quantified in a concentration range between 50 and 500 mg/kg with recoveries between 84% and 109% and RSD for precision under reproducible conditions between 12% and 16%. Satisfactory results were also obtained with interlaboratory studies and by comparing the method with an HPLC-Fluorescent method.
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Affiliation(s)
- Rosa Elvira Gavilán
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Carolina Nebot
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Jose Manuel Miranda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Yolanda Martín-Gómez
- Laboratorio de Sanidad Animal, Lugar Barrio Jove de Arriba, 0 S/N, 33290 Gijón, Spain.
| | - Beatriz Vázquez-Belda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Carlos Manuel Franco
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Alberto Cepeda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
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Gomes LC, Moreira JMR, Teodósio JS, Araújo JDP, Miranda JM, Simões M, Melo LF, Mergulhão FJ. 96-well microtiter plates for biofouling simulation in biomedical settings. Biofouling 2014; 30:535-46. [PMID: 24684538 DOI: 10.1080/08927014.2014.890713] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Microtiter plates with 96 wells are routinely used in biofilm research mainly because they enable high-throughput assays. These platforms are used in a variety of conditions ranging from static to dynamic operation using different shaking frequencies and orbital diameters. The main goals of this work were to assess the influence of nutrient concentration and flow conditions on biofilm formation by Escherichia coli in microtiter plates and to define the operational conditions to be used in order to simulate relevant biomedical scenarios. Assays were performed in static mode and in incubators with distinct orbital diameters using different concentrations of glucose, peptone and yeast extract. Computational fluid dynamics (CFD) was used to simulate the flow inside the wells for shaking frequencies ranging from 50 to 200 rpm and orbital diameters from 25 to 100 mm. Higher glucose concentrations enhanced adhesion of E. coli in the first 24 h, but variation in peptone and yeast extract concentration had no significant impact on biofilm formation. Numerical simulations indicate that 96-well microtiter plates can be used to simulate a variety of biomedical scenarios if the operating conditions are carefully set.
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Affiliation(s)
- L C Gomes
- a LEPABE - Department of Chemical Engineering, Faculty of Engineering , University of Porto , Porto , Portugal
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Nebot C, Regal P, Miranda JM, Fente C, Cepeda A. Rapid method for quantification of nine sulfonamides in bovine milk using HPLC/MS/MS and without using SPE. Food Chem 2013; 141:2294-9. [DOI: 10.1016/j.foodchem.2013.04.099] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/16/2012] [Accepted: 04/26/2013] [Indexed: 10/26/2022]
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Gomes LC, Moreira JMR, Miranda JM, Simões M, Melo LF, Mergulhão FJ. Macroscale versus microscale methods for physiological analysis of biofilms formed in 96-well microtiter plates. J Microbiol Methods 2013; 95:342-9. [PMID: 24140575 DOI: 10.1016/j.mimet.2013.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 08/25/2013] [Revised: 10/01/2013] [Accepted: 10/08/2013] [Indexed: 12/24/2022]
Abstract
Microtiter plates with 96 wells have become one of the preferred platforms for biofilm studies mainly because they enable high-throughput assays. In this work, macroscale and microscale methods were used to study the impact of hydrodynamic conditions on the physiology and location of Escherichia coli JM109(DE3) biofilms formed in microtiter plates. Biofilms were formed in shaking and static conditions, and two macroscale parameters were assayed: the total amount of biofilm was measured by the crystal violet assay and the metabolic activity was determined by the resazurin assay. From the macroscale point of view, there were no statistically significant differences between the biofilms formed in static and shaking conditions. However, at a microscale level, the differences between both conditions were revealed using scanning electron microscopy (SEM). It was observed that biofilm morphology and spatial distribution along the wall were different in these conditions. Simulation of the hydrodynamic conditions inside the wells at a microscale was performed by computational fluid dynamics (CFD). These simulations showed that the shear strain rate was unevenly distributed on the walls during shaking conditions and that regions of higher shear strain rate were obtained closer to the air/liquid interface. Additionally, it was shown that wall regions subjected to higher shear strain rates were associated with the formation of biofilms containing cells of smaller size. Conversely, regions with lower shear strain rate were prone to have a more uniform spatial distribution of adhered cells of larger size. The results presented on this work highlight the wealth of information that may be gathered by complementing macroscale approaches with a microscale analysis of the experiments.
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Affiliation(s)
- L C Gomes
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, Porto, Portugal
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Nebot C, Iglesias A, Barreiro R, Miranda JM, Vázquez B, Franco CM, Cepeda A. A simple and rapid method for the identification and quantification of malachite green and its metabolite in hake by HPLC–MS/MS. Food Control 2013. [DOI: 10.1016/j.foodcont.2012.09.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Catarino SO, Miranda JM, Lanceros-Mendez S, Minas G. A numerical study on the heat transfer generated by a piezoelectric transducer in a microfluidic system. ACTA ACUST UNITED AC 2012. [DOI: 10.1088/1742-6596/395/1/012091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Miranda JM, Teixeira JA, Vicente AA, Correia JH, Minas G. Improving alternate flow mixing by obstacles located along a micro-channel. Annu Int Conf IEEE Eng Med Biol Soc 2009; 2009:7034-6. [PMID: 19964194 DOI: 10.1109/iembs.2009.5333311] [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: 11/05/2022]
Abstract
An essential requirement for any practical fully integrated lab-on-a-chip device is the ability to mix two or more fluids thoroughly and efficiently, i.e., in a reasonable amount of time. This paper presents a way to improve mixing in microfluidic systems combining alternate flows with obstacles using passive mixers. Numerical simulations show that the layers of high and low solute concentration, created by the alternate flow, are split into smaller chunks of fluid, due to the obstacles inserted in the mixing channel, increasing the contact area between high and low concentration regions and decreasing the critical mixing length. This improvement can lead to shorter mixing channels and to low-cost mixers fabricated by planar lithographic technology.
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Affiliation(s)
- J M Miranda
- University of Minho, Biological Engineering Center, Campus de Gualtar, 4710-057 Braga, Portugal.
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Acciari VA, Aliu E, Arlen T, Bautista M, Beilicke M, Benbow W, Bradbury SM, Buckley JH, Bugaev V, Butt Y, Byrum K, Cannon A, Celik O, Cesarini A, Chow YC, Ciupik L, Cogan P, Cui W, Dickherber R, Fegan SJ, Finley JP, Fortin P, Fortson L, Furniss A, Gall D, Gillanders GH, Grube J, Guenette R, Gyuk G, Hanna D, Holder J, Horan D, Hui CM, Humensky TB, Imran A, Kaaret P, Karlsson N, Kieda D, Kildea J, Konopelko A, Krawczynski H, Krennrich F, Lang MJ, LeBohec S, Maier G, McCann A, McCutcheon M, Millis J, Moriarty P, Ong RA, Otte AN, Pandel D, Perkins JS, Petry D, Pohl M, Quinn J, Ragan K, Reyes LC, Reynolds PT, Roache E, Roache E, Rose HJ, Schroedter M, Sembroski GH, Smith AW, Swordy SP, Theiling M, Toner JA, Varlotta A, Vincent S, Wakely SP, Ward JE, Weekes TC, Weinstein A, Williams DA, Wissel S, Wood M, Walker RC, Davies F, Hardee PE, Junor W, Ly C, Aharonian F, Akhperjanian AG, Anton G, Barres de Almeida U, Bazer-Bachi AR, Becherini Y, Behera B, Bernlöhr K, Bochow A, Boisson C, Bolmont J, Borrel V, Brucker J, Brun F, Brun P, Bühler R, Bulik T, Büsching I, Boutelier T, Chadwick PM, Charbonnier A, Chaves RCG, Cheesebrough A, Chounet LM, Clapson AC, Coignet G, Dalton M, Daniel MK, Davids ID, Degrange B, Deil C, Dickinson HJ, Djannati-Ataï A, Domainko W, Drury LO, Dubois F, Dubus G, Dyks J, Dyrda M, Egberts K, Emmanoulopoulos D, Espigat P, Farnier C, Feinstein F, Fiasson A, Förster A, Fontaine G, Füssling M, Gabici S, Gallant YA, Gérard L, Gerbig D, Giebels B, Glicenstein JF, Glück B, Goret P, Göhring D, Hauser D, Hauser M, Heinz S, Heinzelmann G, Henri G, Hermann G, Hinton JA, Hoffmann A, Hofmann W, Holleran M, Hoppe S, Horns D, Jacholkowska A, de Jager OC, Jahn C, Jung I, Katarzyński K, Katz U, Kaufmann S, Kendziorra E, Kerschhaggl M, Khangulyan D, Khélifi B, Keogh D, Kluźniak W, Kneiske T, Komin N, Kosack K, Lamanna G, Lenain JP, Lohse T, Marandon V, Martin JM, Martineau-Huynh O, Marcowith A, Maurin D, McComb TJL, Medina MC, Moderski R, Moulin E, Naumann-Godo M, de Naurois M, Nedbal D, Nekrassov D, Nicholas B, Niemiec J, Nolan SJ, Ohm S, Olive JF, de Oña Wilhelmi E, Orford KJ, Ostrowski M, Panter M, Paz Arribas M, Pedaletti G, Pelletier G, Petrucci PO, Pita S, Pühlhofer G, Punch M, Quirrenbach A, Raubenheimer BC, Raue M, Rayner SM, Renaud M, Rieger F, Ripken J, Rob L, Rosier-Lees S, Rowell G, Rudak B, Rulten CB, Ruppel J, Sahakian V, Santangelo A, Schlickeiser R, Schöck FM, Schröder R, Schwanke U, Schwarzburg S, Schwemmer S, Shalchi A, Sikora M, Skilton JL, Sol H, Spangler D, Stawarz Ł, Steenkamp R, Stegmann C, Stinzing F, Superina G, Szostek A, Tam PH, Tavernet JP, Terrier R, Tibolla O, Tluczykont M, van Eldik C, Vasileiadis G, Venter C, Venter L, Vialle JP, Vincent P, Vivier M, Völk HJ, Volpe F, Wagner SJ, Ward M, Zdziarski AA, Zech A, Anderhub H, Antonelli LA, Antoranz P, Backes M, Baixeras C, Balestra S, Barrio JA, Bastieri D, Becerra González J, Becker JK, Bednarek W, Berger K, Bernardini E, Biland A, Bock RK, Bonnoli G, Bordas P, Borla Tridon D, Bosch-Ramon V, Bose D, Braun I, Bretz T, Britvitch I, Camara M, Carmona E, Commichau S, Contreras JL, Cortina J, Costado MT, Covino S, Curtef V, Dazzi F, De Angelis A, De Cea del Pozo E, Delgado Mendez C, De los Reyes R, De Lotto B, De Maria M, De Sabata F, Dominguez A, Dorner D, Doro M, Elsaesser D, Errando M, Ferenc D, Fernández E, Firpo R, Fonseca MV, Font L, Galante N, García López RJ, Garczarczyk M, Gaug M, Goebel F, Hadasch D, Hayashida M, Herrero A, Hildebrand D, Höhne-Mönch D, Hose J, Hsu CC, Jogler T, Kranich D, La Barbera A, Laille A, Leonardo E, Lindfors E, Lombardi S, Longo F, López M, Lorenz E, Majumdar P, Maneva G, Mankuzhiyil N, Mannheim K, Maraschi L, Mariotti M, Martínez M, Mazin D, Meucci M, Miranda JM, Mirzoyan R, Miyamoto H, Moldón J, Moles M, Moralejo A, Nieto D, Nilsson K, Ninkovic J, Oya I, Paoletti R, Paredes JM, Pasanen M, Pascoli D, Pauss F, Pegna RG, Perez-Torres MA, Persic M, Peruzzo L, Prada F, Prandini E, Puchades N, Reichardt I, Rhode W, Ribó M, Rico J, Rissi M, Robert A, Rügamer S, Saggion A, Saito TY, Salvati M, Sanchez-Conde M, Satalecka K, Scalzotto V, Scapin V, Schweizer T, Shayduk M, Shore SN, Sidro N, Sierpowska-Bartosik A, Sillanpää A, Sitarek J, Sobczynska D, Spanier F, Stamerra A, Stark LS, Takalo L, Tavecchio F, Temnikov P, Tescaro D, Teshima M, Torres DF, Turini N, Vankov H, Wagner RM, Zabalza V, Zandanel F, Zanin R, Zapatero J. Radio Imaging of the Very-High-Energy γ-Ray Emission Region in the Central Engine of a Radio Galaxy. Science 2009; 325:444-8. [PMID: 19574351 DOI: 10.1126/science.1175406] [Citation(s) in RCA: 157] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Miranda JM, Mondragón AC, Martinez B, Guarddon M, Rodriguez JA. Prevalence and antimicrobial resistance patterns of Salmonella from different raw foods in Mexico. J Food Prot 2009; 72:966-71. [PMID: 19517722 DOI: 10.4315/0362-028x-72.5.966] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The presence of Salmonella was determined in 116 samples of poultry meat, 81 samples of pork, 73 samples of beef, 33 samples of cheese, 61 samples of fish, and 78 samples of vegetables collected from retail stores and supermarkets in Hidalgo State (Mexico). Ninety-three Salmonella strains isolated from raw foods were characterized, and MICs were determined for 10 antimicrobials. Salmonella was detected in 35.3% of poultry meat, 30.3% of cheese, 21.8% of vegetable, 17.3% of pork, and 15.1% of beef samples, but no Salmonella was detected in fish samples. Significantly higher counts were obtained in chicken meat (P = 0.0001), pork (P = 0.0116), cheese (P = 0.0228), and vegetables (P = 0.0072) obtained from retail stores compared with those samples obtained from supermarkets. Salmonella isolates had high levels of resistance to ampicillin (66.7% of isolates), tetracycline (61.3%), and chloramphenicol (64.5%) and low levels of resistance to cefotaxime (0%), gentamicin (3.2%), and kanamycin (4.3%). Higher levels of quinolone resistance were found in isolates from poultry meat and vegetables compared with that in other foods tested. High levels of multiresistant strains were found in all foods tested except fish, ranging from 100% of pork samples to 47.1% of vegetable samples. The present study revealed that Salmonella prevalence was higher in foods from retail stores than in foods from supermarkets. Resistance rates observed for Salmonella were largely comparable to those reported in other countries for most antimicrobials, although resistance to chloramphenicol tended to be higher.
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Affiliation(s)
- J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002-Lugo, Spain.
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Miranda JM, Mondragón A, Vázquez BI, Fente CA, Cepeda A, Franco CM. Influence of farming methods on microbiological contamination and prevalence of resistance to antimicrobial drugs in isolates from beef. Meat Sci 2009; 82:284-8. [PMID: 20416735 DOI: 10.1016/j.meatsci.2009.01.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2008] [Revised: 12/19/2008] [Accepted: 01/19/2009] [Indexed: 11/24/2022]
Abstract
The presence of Escherichia coli, Staphylococcus aureus, Listeria monocytogenes and Salmonella spp. was determined in 75 samples of conventional beef and in 75 samples of organic beef. All samples came from cattle slaughtered and processed in the same slaughterhouse and quartering room. A total of 180 E. coli, 180 S. aureus and 98 L. monocytogenes strains were analyzed by an agar disk diffusion assay for their resistance to 11 antimicrobials, for the case of E. coli and S. aureus, or 9 antimicrobials, for the case of L. monocytogenes. Salmonella spp. were not isolated from any of the beef samples. No significant differences in prevalence were obtained for any of the bacterial species tested between organic and conventional beef. E. coli isolated from organic beef exhibited significant differences in antimicrobial resistance against 5 of the 11 antimicrobials tested as compared to isolates recovered from conventional beef. In the case of S. aureus, these differences were only found for 3 of the 11 antimicrobials tested and for L. monocytogenes, no differences were obtained between isolates obtained from organic or conventional beef. Although no significant differences were obtained in microbiological contamination, E. coli and S. aureus isolates from organically farmed beef samples showed significantly lower rates of antimicrobial resistance in E. coli and S. aureus isolates.
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Affiliation(s)
- J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto de Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002-Lugo, Spain
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Miranda JM, Vázquez BI, Fente CA, Calo-Mata P, Cepeda A, Franco CM. Comparison of antimicrobial resistance in Escherichia coli, Staphylococcus aureus, and Listeria monocytogenes strains isolated from organic and conventional poultry meat. J Food Prot 2008; 71:2537-42. [PMID: 19244911 DOI: 10.4315/0362-028x-71.12.2537] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The presence of Escherichia coli, Staphylococcus aureus, and Listeria monocytogenes was determined in 55 samples of organic poultry meat and in 61 samples of conventional poultry meat. A total of 220 E. coli, 192 S. aureus, and 71 L. monocytogenes strains were analyzed by an agar disk diffusion assay for their resistance to ampicillin, cephalothin, chloramphenicol, ciprofloxacin, doxycycline, fosfomycin, gentamicin, nitrofurantoin, streptomycin, and sulfisoxazole (E. coli); chloramphenicol, ciprofloxacin, clindamycin, doxycycline, erythromycin, gentamicin, nitrofurantoin, oxacillin, and sulfisoxazole (S. aureus); and chloramphenicol, doxycycline, erythromycin, gentamicin, sulfisoxazole, and vancomycin (L. monocytogenes). The results indicated a significantly higher (P < 0.0001) prevalence of E. coli but not of S. aureus and L. monocytogenes in organic poultry meat as compared with conventional poultry meat. E. coli isolated from organic poultry meat exhibited lower levels of antimicrobial resistance against 7 of the 10 antimicrobials tested as compared with isolates recovered from conventional meat. In the case of S. aureus and L. monocytogenes isolated from conventional poultry, antimicrobial resistance was significantly higher only for doxycycline as compared with strains isolated from organic poultry. In the case of E. coli, the presence of multiresistant strains was significantly higher (P < 0.0001) in conventional poultry meat as compared with organic poultry meat. Organically farmed poultry samples showed significantly lower development of antimicrobial resistance in intestinal bacteria such as E. coli.
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Affiliation(s)
- J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto de Químicas Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002 - Lugo, Spain
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Miranda JM, Vázquez BI, Fente CA, Barros-Velázquez J, Cepeda A, Franco CM. Evolution of resistance in poultry intestinal Escherichia coli during three commonly used antimicrobial therapeutic treatments in poultry. Poult Sci 2008; 87:1643-8. [PMID: 18648061 DOI: 10.3382/ps.2007-00485] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The resistance rates of intestinal Escherichia coli populations from poultry were determined during treatment and withdrawal period with 3 antimicrobial agents commonly used as therapeutics in poultry medicine. A total of 108 chickens were considered: 18 were treated orally with enrofloxacin, 18 with doxycycline, and 18 with sulfonamides, whereas another 18 chickens were maintained as controls for each antimicrobial group. Fecal samples were taken during the treatment and after the withdrawal period, and E. coli were isolated through Fluorocult media plating. A total of 648 E. coli strains (216 per antimicrobial tested) were isolated and identified though biochemical methods. Minimal inhibitory concentrations to the antimicrobials used were also determined using a broth microdilution method. The resistance rates of intestinal E. coli to all of the antimicrobials tested significantly increased during the course of the therapeutic treatment. In addition, significant differences (P = 0.0136) in resistance rates persisted between the intestinal E. coli of the enrofloxacin-treated and control batches until the end of the withdrawal period, but this difference was not observed for the cases of doxycycline or sulfonamides treatments. Antimicrobial use in poultry medicine seems to select for antimicrobial-resistant strains of pathogenic bacterial species such as E. coli. In some cases, the higher frequencies of resistant strains may persist in the avian intestinal tract until the end of the withdrawal period, when it is legal to use these animals for human consumption.
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Affiliation(s)
- J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Departmento de Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain
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Sebastián JL, Muñoz S, Sancho M, Álvarez G, Miranda JM. Electric field distribution and energy absorption in anisotropic and dispersive red blood cells. Phys Med Biol 2007; 52:6831-47. [DOI: 10.1088/0031-9155/52/23/004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Miranda JM, Guarddon M, Mondragon A, Vázquez BI, Fente CA, Cepeda A, Franco CM. Antimicrobial resistance in Enterococcus spp. strains isolated from organic chicken, conventional chicken, and turkey meat: a comparative survey. J Food Prot 2007; 70:1021-4. [PMID: 17477278 DOI: 10.4315/0362-028x-70.4.1021] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [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: 11/11/2022]
Abstract
The mean counts of Enterococcus spp. were determined for 30 samples each of organic chicken meat, conventional chicken meat, and turkey meat, and differences for Enterococcus contamination in meat were determined. Two enterococci strains from each sample were isolated to obtain a total of 180 strains, and resistance to ampicillin, chloramphenicol, doxycycline, ciprofloxacin, erythromycin, gentamicin, nitrofurantoin, and vancomycin was determined by a disk diffusion method. Average counts obtained showed that Enterococcus mean counts from organic chicken meat (3.18 log CFU/g) were significantly higher than those obtained from conventional chicken meat (2.06 log CFU/g) or conventional turkey meat (1.23 log CFU/g). However, the resistance data obtained showed that isolates from organic chicken meat were less resistant than enterococci isolates from conventional chicken meat to ampicillin (P = 0.0067), chloramphenicol (P = 0.0154), doxycycline (P = 0.0277), ciprofloxacin (P = 0.0024), erythromycin (P = 0.0028), and vancomycin (P = 0.0241). In addition, isolates from organic chicken were less resistant than conventional turkey meat isolates to ciprofloxacin (P = 0.001) and erythromycin (P = 0.0137). Multidrug-resistant isolates were found in every group tested, but rates of multidrug-resistant strains were significantly higher in conventional chicken and turkey than those obtained from organic chicken meat. Enterococcus faecalis was the most common species isolated from organic chicken (36.67%), whereas Enterococcus durans was the most common species isolated from conventional chicken (58.33%) and turkey (56.67%). The rates obtained for antimicrobial resistance suggest that although organic chicken meat may have higher numbers of Enterococcus, these bacteria present a lower level of antimicrobial resistance.
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Affiliation(s)
- J M Miranda
- Laboratorio de Higiene Inspección y Control de Alimentos, Dpto de Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002-Lugo, Spain
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Briones RM, Miranda JM, Mellado-Gil JM, Castro MJ, Gonzalez-Molina M, Cuesta-Muñoz AL, Alonso A, Frutos MA. Differential analysis of donor characteristics for pancreas and islet transplantation. Transplant Proc 2007; 38:2579-81. [PMID: 17098008 DOI: 10.1016/j.transproceed.2006.08.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Suitable selection of donors is key to the success of human islet isolation and transplantation. Although several important donor-related factors have been identified previously, they needed to be confirmed in our setting. The aims of this study were: (1) to compare the characteristics of islet donors with those of pancreas donors (national transplant registry). (2) to compare the characteristics of islet donors resulting in a successful isolation in our facility with the characteristics of pancreas donors, and (3) to compare the characteristics of islet donors at this facility, whether or not isolation was successful, with donors elsewhere whose islets were transplanted and included in the Collaborative Islet Transplant Registry. The 35 islet isolations completed at our facility were analyzed for various characteristics. Significant differences were seen in donor age body mass index (BMI), and body weight between our islet donors and our pancreas donors (P < .001). These differences were maintained in the subgroup analysis corresponding to donors of successful isolations compared to pancreas donors (P < .01). Most successful isolations in our islet isolation facility were associated with donors of BMI >25. The percentage of successful isolation (>300,000 IEq) was higher among donors with a body weight >90 kg. We concluded that there was little overlap between the donor profiles for pancreas transplantation and for islet transplantation. More specific selection criteria relative to both BMI and body weight for islet donors may result in greater success of pancreas islet isolation and transplantation.
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Affiliation(s)
- R M Briones
- Human Pancreatic Islet Laboratory, Carlos Haya University Hospital and IMABIS Foundation, Malaga, Spain
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Sanchis A, Brown AP, Sancho M, Martínez G, Sebastián JL, Muñoz S, Miranda JM. Dielectric characterization of bacterial cells using dielectrophoresis. Bioelectromagnetics 2007; 28:393-401. [PMID: 17471505 DOI: 10.1002/bem.20317] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Measurements of dielectrophoretic collection spectra of Escherichia coli and Staphylococcus aureus suspensions are used for obtaining dielectric characteristics of both types of bacteria. The experiments are interpreted using a numerical method that models the cells as compartmented spherical or rod-like particles. We show the usefulness of this simple method to extract significant information about the electrical properties of Gram-negative and -positive bacteria.
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Affiliation(s)
- A Sanchis
- Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, Madrid, Spain
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