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Arellano S, Zhu L, Dev Kumar G, Law B, Friedman M, Ravishankar S. Essential Oil Microemulsions Inactivate Antibiotic-Resistant Bacteria on Iceberg Lettuce during 28-Day Storage at 4 °C. Molecules 2022; 27:6699. [PMID: 36235235 PMCID: PMC9570928 DOI: 10.3390/molecules27196699] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 11/07/2022] Open
Abstract
The objective of this study was to investigate the antimicrobial activities of essential oil-based microemulsions in the wash water against Escherichia coli O157:H7 and Pseudomonas fluorescens on Iceberg lettuce. Evaluated wash microemulsions included oregano oil, lemongrass oil, and cinnamon oil, along with a plant-based emulsifier for improved solubility. Iceberg lettuce was inoculated for 2 min with E. coli O157:H7 (6.0 log CFU/g) or P. fluorescens (6.0 log CFU/g) and then dip-treated in a phosphate buffered saline (PBS) control, 50 ppm chlorine, 3% hydrogen peroxide treatment or a 0.1%, 0.3%, or 0.5% microemulsion solution. Treated leaves were stored at 4 °C, and analyzed for surviving bacteria on days 0, 3, 7, 10, 14, 21, and 28. Efficacies of the antimicrobials were concentration and storage-time dependent. There was a 1.26−4.86 log CFU/g reduction in E. coli O157:H7 and significant reductions (0.32−2.35 log CFU/g) in P. fluorescens during storage at days 0−28 (p < 0.05). The 0.1% oregano oil microemulsion resulted in the best visual appeal in Iceberg leaves inoculated with E. coli O157:H7 and showed better improvement in the quality of the Iceberg leaves inoculated with spoilage bacteria P. fluorescens. The results suggest that 0.5% cinnamon and 0.3% oregano oil treatments have the potential to provide natural, eco-friendly, and effective alternatives to chemicals for the decontamination of leafy greens, eliminating E. coli O157:H7 and P. fluorescens.
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Affiliation(s)
- Stephanie Arellano
- School of Animal and Comparative Biomedical Sciences, University of Arizona, 1117 E. Lowell Street, Tucson, AZ 85721, USA
| | - Libin Zhu
- School of Animal and Comparative Biomedical Sciences, University of Arizona, 1117 E. Lowell Street, Tucson, AZ 85721, USA
| | | | - Bibiana Law
- School of Animal and Comparative Biomedical Sciences, University of Arizona, 1117 E. Lowell Street, Tucson, AZ 85721, USA
| | - Mendel Friedman
- USDA-ARS Western Regional Research Center, Albany, CA 94710, USA
| | - Sadhana Ravishankar
- School of Animal and Comparative Biomedical Sciences, University of Arizona, 1117 E. Lowell Street, Tucson, AZ 85721, USA
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Calvo R, Guiloff R, Calvo-Mena R, Arellano S, Caro P. [Proximal tibiofibular joint dislocation diagnosis and treatment]. Acta Ortop Mex 2021; 35:560-566. [PMID: 35793258] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Proximal tibiofibular joint dislocations (PTFJD) are uncommon and underdiagnosed injuries. Urgent reduction is mandatory to avoid chronic disfunction. The scarcely available literature does not present a unified management guideline. An acute PTFJD case report with spontaneous reduction and a review of the literature is presented, aiming to assist the diagnosis and management of this pathology. CASE REPORT A 22-years old male presented to the emergency department with high intensity right knee pain after falling in a four-wheel motorcycle. The physical exam revealed a prominent painful mass on the lateral aspect of his knee and proximal leg. His range of motion and knee stability were unremarkable. X-rays were informed negative for musculoskeletal injuries. According to a sustained suspicion of PTFJD, the study was continued with a magnetic resonance imaging (MRI), which suggested PTFJD. During the following 24 hours, the patient referred he was entirely asymptomatic after feeling a loud "clank". He has been followed for three months with MRI, and remains asymptomatic with full functions. CONCLUSION PTFJD diagnosis requires appropriate images. Urgent close reduction is mandatory; if unsuccessful, open reduction, primary repair and internal fixation are indicated. The prognosis of spontaneous reduction remains uncertain and requires a serial clinical evaluation. In the case of recurrence, the appropriate surgical management is indicated according to the elapsed time from the injury.
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Affiliation(s)
- R Calvo
- Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - R Guiloff
- Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - R Calvo-Mena
- Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - S Arellano
- Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - P Caro
- Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
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Liu EJ, Aiuppa A, Alan A, Arellano S, Bitetto M, Bobrowski N, Carn S, Clarke R, Corrales E, de Moor JM, Diaz JA, Edmonds M, Fischer TP, Freer J, Fricke GM, Galle B, Gerdes G, Giudice G, Gutmann A, Hayer C, Itikarai I, Jones J, Mason E, McCormick Kilbride BT, Mulina K, Nowicki S, Rahilly K, Richardson T, Rüdiger J, Schipper CI, Watson IM, Wood K. Aerial strategies advance volcanic gas measurements at inaccessible, strongly degassing volcanoes. Sci Adv 2020; 6:6/44/eabb9103. [PMID: 33127674 PMCID: PMC7608812 DOI: 10.1126/sciadv.abb9103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
Volcanic emissions are a critical pathway in Earth's carbon cycle. Here, we show that aerial measurements of volcanic gases using unoccupied aerial systems (UAS) transform our ability to measure and monitor plumes remotely and to constrain global volatile fluxes from volcanoes. Combining multi-scale measurements from ground-based remote sensing, long-range aerial sampling, and satellites, we present comprehensive gas fluxes-3760 ± [600, 310] tons day-1 CO2 and 5150 ± [730, 340] tons day-1 SO2-for a strong yet previously uncharacterized volcanic emitter: Manam, Papua New Guinea. The CO2/ST ratio of 1.07 ± 0.06 suggests a modest slab sediment contribution to the sub-arc mantle. We find that aerial strategies reduce uncertainties associated with ground-based remote sensing of SO2 flux and enable near-real-time measurements of plume chemistry and carbon isotope composition. Our data emphasize the need to account for time averaging of temporal variability in volcanic gas emissions in global flux estimates.
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Affiliation(s)
- E J Liu
- University College London, London WC1E6BS, UK.
- University of Cambridge, Cambridge CB23EQ, UK
| | - A Aiuppa
- Università di Palermo, 90123 Palermo, Italy
| | - A Alan
- GasLAB, Universidad de Costa Rica, San José, Costa Rica
| | - S Arellano
- Chalmers University of Technology, Göteborg, Sweden
| | - M Bitetto
- Università di Palermo, 90123 Palermo, Italy
| | - N Bobrowski
- Heidelberg University, Heidelberg, Germany
- Max Planck Institute for Chemistry, Mainz, Germany
| | - S Carn
- Michigan Technological University, Houghton, MI 49931, USA
| | - R Clarke
- University of Bristol, Bristol, BS8 1TR, UK
| | - E Corrales
- GasLAB, Universidad de Costa Rica, San José, Costa Rica
| | - J M de Moor
- Universidad Nacional, Heredia, 40101-3000 Costa Rica
| | - J A Diaz
- GasLAB, Universidad de Costa Rica, San José, Costa Rica
| | - M Edmonds
- University of Cambridge, Cambridge CB23EQ, UK
| | - T P Fischer
- University of New Mexico, Albuquerque, NM 87131, USA
| | - J Freer
- University of Bristol, Bristol, BS8 1TR, UK
- University of Saskatchewan, Centre for Hydrology, Canmore, Alberta T1W 3G1, Canada
| | - G M Fricke
- University of New Mexico, Albuquerque, NM 87131, USA
| | - B Galle
- Chalmers University of Technology, Göteborg, Sweden
| | - G Gerdes
- Chalmers University of Technology, Göteborg, Sweden
| | - G Giudice
- INGV, Osservatorio Etneo, Sezione di Catania, 95125 Catania, Italy
| | - A Gutmann
- Johannes Gutenberg-Universität, Mainz 55128, Germany
| | - C Hayer
- University of Manchester, Manchester, M13 9PL, UK
| | - I Itikarai
- Rabaul Volcanological Observatory, Rabaul, Papua New Guinea
| | - J Jones
- University of New Mexico, Albuquerque, NM 87131, USA
| | - E Mason
- University of Cambridge, Cambridge CB23EQ, UK
| | | | - K Mulina
- Rabaul Volcanological Observatory, Rabaul, Papua New Guinea
| | - S Nowicki
- University of New Mexico, Albuquerque, NM 87131, USA
| | - K Rahilly
- University of New Mexico, Albuquerque, NM 87131, USA
| | | | - J Rüdiger
- Johannes Gutenberg-Universität, Mainz 55128, Germany
| | - C I Schipper
- Victoria University of Wellington, Wellington 6012, New Zealand
| | - I M Watson
- University of Bristol, Bristol, BS8 1TR, UK
| | - K Wood
- University of Bristol, Bristol, BS8 1TR, UK
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Vargas-Domínguez A, Arellano S, Alonso P, Viramontes Madrid JL. [Sensitivity, specificity, and predictive values of fine-needle biopsy in thyroid cancer]. GAC MED MEX 1994; 130:55-8. [PMID: 7851696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
One-hundred and eleven patients were studied with the objective of exploring the diagnostic usefulness of the fine needle aspiration (FNA) biopsy in cases with cancer of the thyroid gland. The mean age of the total sample was 42.4 years, with 89 percent females. A thyroid gland FNA was done in all cases as well as a surgical intervention for the establishment of a definitive diagnosis (i.e., gold standard). The cytologic diagnosis was done by the same expert pathologist in all cases. The diagnostic accuracy was obtained using a 2 x 2 table. Sensitivity was found to be 72 percent and specificity 91 percent, with 85.5 percent of diagnostic accuracy. Taking into account a 30 percent prevalence in our sample, predictive values were found to be 81 percent for positive and 87 percent for negative. It is concluded that FNA is better than the gold standard in the following points: it is easy to do, it has lower risk, and it has lower discomfort and financial cost. FNA showed a better utility to identify the absence of cancer. This is a procedure which is recommended for use in hospitals similar to the General Hospital of Mexico S.S. as part of the presurgical diagnosis in cases with clinical suspicion of thyroid gland malignancy.
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Sánchez-Borges M, de Orozco A, Arellano S, de Gallego V, Avila-Millián E, Suárez-Chacón R. Preventive role of atopy in lung cancer. Clin Immunol Immunopathol 1986; 41:314-9. [PMID: 3780049 DOI: 10.1016/0090-1229(86)90002-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Incidence of atopic disease, serum and sputum IgE, and sputum IgA levels were studied in lung cancer patients, and compared with those in lung benign disease patients and normal controls. A significantly lower prevalence of personal atopic history was observed in the cancer group in comparison with the other two experimental groups. Patients with lung cancer showed significantly higher serum IgE levels than benign-disease and normal control individuals. At the same time, patients with epidermoid lung carcinoma had significantly increased levels of serum IgE and sputum IgA than those with lung adenocarcinoma.
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